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Update: observed flooding in Kalona — 4:43 AM CDT

Issued 4:43 AM CDT, still until 6:15 AM CDT by the National Weather Service in Quad Cities, IA/IL. The warned area is unchanged: Cedar, Iowa, Johnson, Keokuk, Louisa, Muscatine, and Washington counties. This update is observed flooding, not a forecast — spotters are reporting it on the ground right now.

Trained weather spotters reported flash flooding in Kalona. Between 2 and 4 inches of rain have fallen across portions of the warned area. Rain has tapered off to mainly light to at times moderate rain, with the heaviest rain already over — but flash flooding is ongoing. The English River is out of its banks: Washington County deputies reported around a foot of water covering the intersection of 133rd Street and Nutmeg Street in Kalona. Be alert for rapid rises and flooding on area streams and creeks and along the English River.

Drivers should know the highway exposure in this warning: Interstate 80 between mile markers 205 and 277 and Interstate 380 between mile markers 1 and 7 are inside the warned area. Turn around, don’t drown — most flood deaths happen in vehicles, and it is much harder to recognize flooded roadways at night.

What this means for restoration teams: observed, on-the-ground flooding in Kalona and along the English River means this event is already producing water-intrusion work, not just risk. First calls typically land within hours of water receding and keep coming for days as damage is discovered — saturated drywall and insulation, contents in flooded basements, and septic/sewer backup in low-lying areas. If you’re covering the Iowa City–Muscatine–Washington corridor this morning, keep an on-call rotation through daylight and capture address, water source, and affected areas on the first call.

Update published as a live snapshot as of 4:43 AM CDT. Conditions change fast — verify with the National Weather Service for your specific county or ZIP code.

East Central and Southeast Iowa — Flash Flood Warning

The National Weather Service in the Quad Cities has issued a Flash Flood Warning for seven eastern Iowa counties, in effect until 6:15 AM CDT on Sunday, September 20. The warning, issued at 12:16 AM CDT, covers southern Cedar County, Iowa County, Johnson County, Muscatine County, Keokuk County, northwestern Louisa County, and Washington County.

For restoration teams, this is a wide-area overnight water event: between 1 and 2 inches of rain have already fallen, with another 2 to 3 inches possible before sunrise. Urban areas, small creeks, highways, and underpasses across east central and southeastern Iowa are in the impact zone — the exact interior flooding and stormwater-damage jobs restoration contractors see most.

UPDATE 1:45 AM CDT: this warning continues (same counties, same 6:15 AM CDT expiry), and flooding is now observed — trained weather spotters report the creek in Kalona, Iowa is out of its banks and still rising. This is a live snapshot as of 1:55 AM CDT. Conditions change fast — always verify with the National Weather Service for your specific county or ZIP code.

Southern Cedar, Iowa, Johnson & Muscatine Counties — Flash Flood Warning

Issued by NWS Quad Cities IA IL at 12:16 AM CDT, expiring 6:15 AM CDT. At 12:16 AM CDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area; at 1:45 AM CDT trained weather spotters reported the creek in Kalona is out of its banks and still rising (flash flood detection now OBSERVED). Between 1 and 2 inches of rain have fallen, with additional rainfall amounts of 2 to 3 inches possible. Flash flooding is ongoing or expected to begin shortly.

Locations that will experience flash flooding include: Iowa City, Muscatine, Tipton, West Branch, Durant, Coralville, North Liberty, West Liberty, Wilton, Tiffin, and University Heights.

Expected impacts: flash flooding of small creeks and streams, urban areas, highways, streets and underpasses, as well as other poor drainage and low-lying areas.

Highway impacts: Interstate 80 in Iowa between mile markers 205 and 277, and Interstate 380 between mile markers 1 and 7. Do not drive flooded roadways — underpasses on these corridors are especially dangerous overnight.

Sources: the NWS Quad Cities office page and the official NWS alert (alert ID urn:oid:2.49.0.1.840.0.b1647530b5db10f8acc8cbf7b275d41d896a364b.001.1).

Keokuk, Northwestern Louisa & Washington Counties — Flash Flood Warning

Same warning, same timing: issued by NWS Quad Cities IA IL at 12:16 AM CDT, expiring 6:15 AM CDT. Radar-indicated thunderstorms producing heavy rain, with 1 to 2 inches already fallen and up to 3 inches more possible. Flash flooding is ongoing or expected to begin shortly. Severity: Severe; certainty: Likely; urgency: Immediate.

Locations that will experience flash flooding include: Washington, Marengo, Sigourney, Columbus Junction, Williamsburg, Kalona, Wellman, and Lone Tree.

Expected impacts: small creeks and streams, urban areas, highways, streets and underpasses, and other poor drainage and low-lying areas.

Stay safe tonight

Turn around, don’t drown when encountering flooded roads. Most flood deaths occur in vehicles — never drive through flooded roadways.

Be especially cautious at night, when it is harder to recognize the dangers of flooding. This warning covers the full overnight window across the Iowa City–Muscatine corridor and surrounding rural counties, where rural roads and low-water crossings are hardest to read in the dark.

Be aware of your surroundings and do not drive on flooded roads.

If water enters the home: stay out of standing water where electricity may be present, avoid the basement until water recedes and power is confirmed off, photograph everything before cleanup (documentation matters for insurance), then call a local restoration contractor — water left sitting starts a second wave of damage within a day.

What this means for restoration teams

This is a water-intrusion event across a broad service area, from the Iowa City metro to rural southeastern Iowa. Expect:

• Interior water intrusion — basements, crawlspaces, and ground-floor commercial spaces in low-lying areas and along creeks and the Iowa/Cedar river tributaries.
• Saturated drywall and insulation — water wicks upward fast; what looks like a wet floor line is often a two-foot wall cut.
• Mold risk within 24–48 hours — drying starts now, not Monday.
• Sewage backup in low-lying urban and rural areas where stormwater overwhelms the system — treat as Category 3 until verified otherwise.
• Stormwater damage to commercial properties along the I-80 corridor — loading docks, storage areas, and below-grade parking.

The play: stage equipment tonight, pre-position drying assets across the seven-county area, keep an on-call rotation through Sunday morning, and capture address, water source, and affected areas on the first call. Field discipline: photo-document before mitigation, moisture-map every affected room, and keep the homeowner’s payment responsibility clear in writing before work starts.

FEMA & federal assistance

FEMA Helpline: 1-800-621-3362 (7 a.m.–10 p.m. local time, 7 days a week). You can also apply at DisasterAssistance.gov, through the FEMA mobile app, or find in-person recovery centers at fema.gov/drc.

Basic eligibility: U.S. citizenship or qualified non-citizen status, identity verification, proof of occupancy or ownership, and unmet needs not covered by insurance. Apply as soon as it is safe to do so — do not wait for insurance to settle first.

Looking ahead

The warning expires at 6:15 AM CDT. What to watch through the rest of the night: additional thunderstorm rounds can drop rain on ground that is already saturated, and small creeks and streams often crest after the rain stops. With up to 2–3 inches more possible, a reissue or extension is likely if flooding is still ongoing at expiry.

Demand window note: water-intrusion calls typically start within hours of water receding and keep coming for days as homeowners discover damage — especially in basements that weren’t checked overnight.

Sources & how to verify

• Official warning: National Weather Service Quad Cities IA IL, Flash Flood Warning issued 12:16 AM CDT Sept 20 (alert ID urn:oid:2.49.0.1.840.0.b1647530b5db10f8acc8cbf7b275d41d896a364b.001.1)
• NWS Quad Cities office page

To verify for your own county or ZIP code, check weather.gov or the NWS Quad Cities office page — alerts update continuously.

This post is for informational purposes and is not an official weather warning. Always follow instructions from local authorities and the National Weather Service.

Southeastern Ohio — Flash Flood Warning

The National Weather Service in Charleston, West Virginia, has issued a Flash Flood Warning for parts of southeastern Ohio, in effect until 5:15 AM EDT on Sunday, September 20. The warning, issued at 1:16 AM EDT, covers southwestern Athens County, northwestern Meigs County, and northeastern Vinton County.

For restoration teams, this is the classic overnight water-intrusion setup: heavy rain on already-saturated ground, homes and businesses taking water in low-lying areas and along small creeks. These are the exact interior flooding jobs restoration contractors see most after flash flood events.

This is a live snapshot as of the 1:16 AM EDT issuance. Conditions change fast — always verify with the National Weather Service for your specific county or ZIP code.

Southwestern Athens County — Flash Flood Warning

Issued by NWS Charleston WV at 1:16 AM EDT, expiring 5:15 AM EDT. At 1:16 AM EDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 0.5 and 2 inches of rain have fallen, with additional rainfall amounts of 1 to 2 inches possible. Flash flooding is ongoing or expected to begin shortly.

Locations that will experience flash flooding include: McArthur, Albany, Zaleski, Carpenter, Radcliffe, and Creola.

Expected impacts: flash flooding of small creeks and streams, urban areas, highways, streets and underpasses, as well as other poor drainage and low-lying areas.

Sources: the NWS Charleston WV office page and the official NWS alert (alert ID urn:oid:2.49.0.1.840.0.146aedd8dd80e584ce97c035f29d0ff0e86be4ac.001.1).

Northwestern Meigs County — Flash Flood Warning

Same warning, same timing: issued by NWS Charleston WV at 1:16 AM EDT, expiring 5:15 AM EDT. Radar indicated thunderstorms producing heavy rain, with 0.5 to 2 inches already fallen and another 1 to 2 inches possible. Flash flooding is ongoing or expected to begin shortly. Severity: Severe; certainty: Likely; urgency: Immediate.

Locations that will experience flash flooding include: McArthur, Albany, Zaleski, Carpenter, Radcliffe, and Creola.

Expected impacts: small creeks and streams, urban areas, highways, streets and underpasses, and other poor drainage and low-lying areas.

Northeastern Vinton County — Flash Flood Warning

Also covered under this warning: issued by NWS Charleston WV at 1:16 AM EDT, expiring 5:15 AM EDT. Same radar-indicated hazard — flash flooding caused by thunderstorms — with 0.5 to 2 inches of rain already down and up to 2 inches more possible before the warning expires.

Locations that will experience flash flooding include: McArthur, Albany, Zaleski, Carpenter, Radcliffe, and Creola.

Expected impacts: small creeks and streams, urban areas, highways, streets and underpasses, and other poor drainage and low-lying areas.

Stay safe tonight

Turn around, don’t drown when encountering flooded roads. Most flood deaths occur in vehicles — never drive through flooded roadways.

Be especially cautious at night, when it is harder to recognize the dangers of flooding. This warning lands squarely in the overnight hours, when flooded roads are nearly impossible to read.

If water enters the home: stay out of standing water where electricity may be present, avoid the basement until water recedes and power is confirmed off, photograph everything before cleanup (documentation matters for insurance), then call a local restoration contractor — water left sitting starts a second wave of damage within a day.

Report flooding to the National Weather Service by calling toll free, 800-401-9535, when you can do so safely. (This number is published in the official warning.)

What this means for restoration teams

This is a water-intrusion event, not a wind event. Expect the damage categories contractors in Athens, Meigs, and Vinton counties know well:

• Interior water intrusion — basements, crawlspaces, and ground-floor rooms in low-lying areas and along creeks.
• Saturated drywall and insulation — water wicks upward fast; what looks like a wet floor line is often a two-foot wall cut.
• Mold risk within 24–48 hours — drying starts now, not Monday.
• Sewage backup in low-lying areas where stormwater overwhelms the system — treat as Category 3 until verified otherwise.

The play: stage equipment tonight, pre-position drying assets, keep an on-call rotation through Sunday morning, and capture address, water source, and affected areas on the first call. Field discipline: photo-document before mitigation, moisture-map every affected room, and keep the homeowner’s payment responsibility clear in writing before work starts.

FEMA & federal assistance

FEMA Helpline: 1-800-621-3362 (7 a.m.–10 p.m. local time, 7 days a week). You can also apply at DisasterAssistance.gov, through the FEMA mobile app, or find in-person recovery centers at fema.gov/drc.

Basic eligibility: U.S. citizenship or qualified non-citizen status, identity verification, proof of occupancy or ownership, and unmet needs not covered by insurance. Apply as soon as it is safe to do so — do not wait for insurance to settle first.

Looking ahead

The warning expires at 5:15 AM EDT. What to watch through the rest of the night: additional thunderstorm rounds can drop rain on ground that is already saturated, and small creeks and streams often crest after the rain stops. If flooding is ongoing at expiry, expect the National Weather Service to extend or reissue the warning.

Demand window note: water-intrusion calls typically start within hours of water receding and keep coming for days as homeowners discover damage — especially in basements that weren’t checked overnight.

Sources & how to verify

• Official warning: National Weather Service Charleston WV, Flash Flood Warning issued 1:16 AM EDT Sept 20 (alert ID urn:oid:2.49.0.1.840.0.146aedd8dd80e584ce97c035f29d0ff0e86be4ac.001.1)
• NWS Charleston WV office page

To verify for your own county or ZIP code, check weather.gov or the NWS Charleston WV office page — alerts update continuously.

This post is for informational purposes and is not an official weather warning. Always follow instructions from local authorities and the National Weather Service.

The National Weather Service in Wilmington has issued a Flash Flood Warning for Hocking County in central Ohio, southeastern Pickaway County, and northeastern Ross County — in effect until 3:00 AM EDT Saturday, September 20. At 11:57 PM EDT, radar indicated thunderstorms producing heavy rain across the warned area, and flash flooding is ongoing or expected to begin shortly.

This is the kind of event that generates the exact interior water-intrusion jobs restoration teams see most: saturated basements, flooded ground floors, and a second wave of damage that shows up days later. This is a live snapshot as of 9:00 PM PDT (midnight local). Conditions change fast — always verify with the National Weather Service for your specific county or ZIP code.

Hocking, Pickaway & Ross Counties — Flash Flood Warning

Issuing office: National Weather Service Wilmington, OH. Issued: 11:57 PM EDT, Friday, September 19, 2026. Expires: 3:00 AM EDT, Saturday, September 20, 2026.

Per the NWS alert, the warning covers Hocking County in central Ohio, southeastern Pickaway County in central Ohio, and northeastern Ross County in south central Ohio. The hazard is life-threatening flash flooding, with thunderstorms producing the flooding. The source is radar indicated — thunderstorms producing heavy rain, with between 1.5 and 3 inches of rain already fallen and additional rainfall amounts of 1 to 2 inches possible in the warned area. The NWS flags the damage threat as CONSIDERABLE.

The expected impact, per the NWS: life-threatening flash flooding of creeks and streams, urban areas, highways, streets, and underpasses.

Some locations that may experience flash flooding include: Logan, Hocking Hills State Park, Starr, Laurelville, Murray City, Adelphi, Tarlton, Gibisonville, Lake Logan State Park, Ilesboro, Enterprise, Rockbridge, South Bloomingville, Union Furnace, Buena Vista in Hocking County, Haydenville, Oreville, Carbon Hill, and Whisler.

NWS Wilmington’s office page is weather.gov/iln, where you can submit flash flooding reports via their website or social media when you can do so safely.

Stay safe tonight

Turn around, don’t drown. When you encounter a flooded road, turn around — most flood deaths occur in vehicles. Never drive through flooded roadways; six inches of moving water can knock you down, and a foot can sweep a vehicle away.

If water gets into your home tonight:

• Stay out of standing water where electricity may be present. Avoid the basement until water recedes and power is confirmed off.
• Photograph everything before you move anything or start cleanup — room by room, water lines, damaged belongings. Documentation is what your insurance claim is built on.
• Then call a local restoration contractor. Water left sitting starts a second wave of damage — saturated drywall, soaked insulation, and microbial growth — within a day.

What this means for restoration teams

A considerable-threat flash flood warning with 1.5 to 3 inches already down and up to 2 more possible is a direct pipeline event for water-damage contractors in Hocking, Pickaway, and Ross Counties. Expect the damage profile you know: interior water intrusion through low ground floors and walkout basements, saturated drywall and insulation, sewage backup in low-lying areas where storm drains surcharge, and standing water in crawl spaces.

The play tonight:

• Stage equipment now. Get air movers, dehumidifiers, and extraction gear loaded before the phones start — flash flood calls cluster in the hours after water recedes, not during the rain.
• Pre-position drying assets. With 3 to 5 inches of total rain possible in some pockets, expect multi-room losses and full first-floor jobs, not just basement seepage.
• Keep an on-call rotation through the morning. People discover damage at daybreak — the call volume runs for days as water recedes and the hidden saturation shows.
• Capture address + water source + affected areas on the first call. Category matters: rain-driven intrusion is cleaner than sewer backup, and it changes the PPE and disposal plan.

Field discipline that pays: photo-document before mitigation starts, moisture-map every affected room (not just the visibly wet ones), and keep the homeowner’s payment responsibility clear in writing before work begins. Mold growth on saturated drywall is on a 24–48 hour clock — speed plus documentation is what separates the pros here.

FEMA & federal assistance

If this event escalates into a declared disaster, the standard federal resources apply: the FEMA Helpline at 1-800-621-3362 (7 a.m.–10 p.m. local, 7 days a week), DisasterAssistance.gov, the FEMA app, and fema.gov/drc for recovery centers. Basic eligibility: citizenship or qualified status, identity verification, proof of occupancy or ownership, and unmet needs not covered by insurance. Apply as soon as it’s safe to do so.

Looking ahead

The warning expires at 3:00 AM EDT Saturday. When it does, the immediate risk doesn’t automatically drop to zero — creeks and streams can crest hours after the rain stops, and additional rounds of storms are always possible on a humid late-September night. Watch NWS Wilmington for updates through the morning.

For restoration operators: the demand window on flash-flood events like this runs in two waves — emergency extraction calls in the first hours after water recedes, then a slower wave of mold-and-saturation jobs over the following days as homeowners discover damage behind walls and under flooring. If you’re marketing to this corridor (Logan, the Hocking Hills area, the Route 23 / Route 35 towns), this weekend is the window.

Sources & how to verify

• The NWS alert: Flash Flood Warning — Hocking, Pickaway, Ross Counties (api.weather.gov)
• Issuing office: NWS Wilmington, OH

To verify for your own county or ZIP code, check weather.gov or your local NWS office page for the latest active alerts.

This post is for informational purposes and is not an official weather warning. Always follow instructions from local authorities and the National Weather Service.

A Flash Flood Warning is active right now for southeastern Brown County, Kansas. The National Weather Service in Topeka, Kansas, issued it at 8:41 PM CDT on Saturday, September 19, 2026, and it runs until 11:30 PM CDT. Doppler radar is indicating thunderstorms that have already dropped between 2 and 3.5 inches of rain on the warned area — with another 1 to 2 inches possible. In this part of northeastern Kansas, that is the exact recipe for flooded basements, overwhelmed streets and underpasses, and the water-intrusion jobs local restoration crews handle most.

This is a live snapshot as of 6:47 PM PDT (8:47 PM CDT) on Saturday, September 19, 2026. Conditions change fast — always verify with the National Weather Service for your specific county or ZIP code.

Southeastern Brown County, KS — Flash Flood Warning

• Issuing office: NWS Topeka, KS
• Issued: 8:41 PM CDT Saturday, September 19, 2026 (AWIPS identifier FFWTOP; VTEC /O.NEW.KTOP.FF.W.0038.260920T0141Z-260920T0430Z/)
• Expires: 11:30 PM CDT Saturday, September 19, 2026
• Severity / certainty / urgency: Severe / Likely / Immediate
• Coverage: Southeastern Brown County in northeastern Kansas

The hazard, in the alert’s own words: “Flash flooding caused by thunderstorms.” The source is radar indicated — Doppler radar showing thunderstorms producing heavy rain across the warned area. Between 2 and 3.5 inches of rain have fallen, and additional rainfall amounts of 1 to 2 inches are possible. Flash flooding is ongoing or expected to begin shortly.

The expected impacts, again verbatim from the alert: flash flooding of small creeks and streams, urban areas, highways, streets and underpasses, as well as other poor-drainage and low-lying areas.

Some locations that will experience flash flooding include: Hiawatha, Horton, Everest, Robinson, Powhattan, and Willis.

Source links: the NWS alert and the NWS Topeka office page.

Stay safe tonight

The NWS instruction for this warning is blunt: turn around, don’t drown when encountering flooded roads. Most flood deaths occur in vehicles. Be especially cautious at night, when it is harder to recognize the dangers of flooding — and this warning runs entirely after dark.

If water gets into your home tonight:

• Stay out of standing water where electricity may be present.
• Avoid the basement until the water recedes and power is confirmed off.
• Photograph everything before cleanup — documentation matters for your insurance claim.
• Then call a local restoration contractor. Water left sitting starts a second wave of damage within a day: wet drywall, saturated insulation, and mold growth that begins in as little as 24 to 48 hours.

Never drive through a flooded roadway. The alert specifically calls out highways, streets, and underpasses — in the warned area, underpasses and low-lying crossings fill fastest and hide depth.

What this means for restoration teams

This warning is the archetype of the interior-water jobs that drive a night’s work. Radar-indicated storms, 2 to 3.5 inches already down, another 1 to 2 inches possible, urban and highway impacts named explicitly — that points to a specific damage mix for crews working Brown County tonight and tomorrow:

• Interior water intrusion: basement flooding in Hiawatha, Horton, and the smaller towns (Everest, Robinson, Powhattan, Willis), plus ground-floor seepage where drainage is overwhelmed.
• Saturated drywall and insulation: with 3-plus inches of rain on the ground before the warning even issued, materials are absorbing water now — teardown decisions need moisture mapping, not guesses.
• Mold risk within 24–48 hours: a Saturday-night event means drying equipment needs to be placed Sunday morning at the latest to beat the mold clock.
• Sewage backup in low-lying areas: municipal systems under load during flash floods push back into ground-floor plumbing — treat mixed-water jobs as contaminated until proven otherwise.
• Street and underpass flooding: expect stranded vehicles and access problems reaching rural addresses in southeastern Brown County — route crews with that in mind.

The play: stage equipment now. Pre-position dehumidifiers and air movers for a Sunday-morning deployment, keep an on-call rotation through the night (the warning runs to 11:30 PM CDT and the call volume lands after), and on the first call capture address, water source, and affected areas before dispatching. Field discipline: photo-document before any mitigation, moisture-map every affected room, and keep the homeowner’s payment responsibility clear in writing before work starts.

FEMA & federal assistance

If this flooding causes real damage, help exists after the water recedes:

• FEMA Helpline: 1-800-621-3362 (7 a.m.–10 p.m. local, 7 days a week)
• Apply at DisasterAssistance.gov or through the FEMA app; find recovery centers at fema.gov/drc
• Basic eligibility: U.S. citizenship or qualified status, identity verification, proof of occupancy or ownership, and unmet needs not covered by insurance. Apply as soon as it is safe to do so.

Looking ahead

The warning expires at 11:30 PM CDT Saturday. After that, the danger does not simply switch off: creeks and streams in the warned area can crest later into the night, and low-lying roads that stayed passable at 9 PM may not be at midnight. Watch for additional rounds of thunderstorms if the line stalls over northeastern Kansas, and expect the next NWS update at or shortly after the 11:30 PM CDT expiry.

Demand window note: water-intrusion calls typically start within hours of the water receding and keep coming for days as homeowners discover damage — Sunday-morning calls from Saturday-night water are the normal pattern. Contractors covering Brown County should plan staffing for a multi-day call window, not just a warning-window night.

Sources & how to verify

• NWS Flash Flood Warning, southeastern Brown County, KS (issued 8:41 PM CDT, expires 11:30 PM CDT, Saturday September 19, 2026)
• NWS Topeka, KS office page

To verify for your own county or ZIP code, go to weather.gov and enter your location, or check the NWS office page above. No emergency-management contact in Brown County could be verified from an official source tonight, so none is listed — 911 is the right call in an emergency.

This post is for informational purposes and is not an official weather warning. Always follow instructions from local authorities and the National Weather Service.

The National Weather Service in Riverton, Wyoming, has updated the Flash Flood Warning for southern Fremont County. The warning, reissued at 7:29 PM MDT on Saturday, September 19, keeps the warned area — rural southern Fremont County near Lyons Valley — under alert until 9:30 PM MDT, with 2 to 3 inches of rain already down and another 1 to 2 inches possible.

Six named drainages are in the warned area, led by the Little Popo Agie and Popo Agie Rivers — in this country, that means creek-overflow jobs on rural properties and washed-out access roads long after the rain stops. This is a live snapshot as of 6:31 PM PDT (7:31 PM MDT) — conditions change fast, so always verify with the National Weather Service for your specific county or ZIP code.

Southern Fremont County, WY — Flash Flood Warning

Issuing office: NWS Riverton, WY
Issued: 7:29 PM MDT Saturday, September 19, 2026 (update/continuation of the 6:25 PM MDT warning — VTEC /O.CON.KRIW.FF.W.0003)
Expires: 9:30 PM MDT Saturday, September 19, 2026
Severity / certainty / urgency: Severe / Likely / Immediate

The hazard, in the alert’s own words: “Flash flooding caused by thunderstorms.” At 7:29 PM MDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 2 and 3 inches of rain had fallen. Additional rainfall amounts of 1 to 2 inches are possible in the warned area. Flash flooding is ongoing or expected to begin shortly.

Area covered: mainly rural areas of Southern Fremont County near Lyons Valley.

Named streams and drainages:

• Little Popo Agie River
• Popo Agie River
• Grant Young Ditch
• Monument Draw
• North Fork Ballenger Draw
• Government Draw

Expected impacts: flash flooding of small creeks and streams, highways, streets and underpasses as well as other poor drainage and low-lying areas.

NWS instruction: “Turn around, don’t drown when encountering flooded roads. Most flood deaths occur in vehicles. Be aware of your surroundings and do not drive on flooded roads. Please report observed flooding to local emergency services or law enforcement and request they pass this information to the National Weather Service when you can do so safely.”

Stay safe tonight

Rural county roads are the trap in a warning like this. Turn around, don’t drown — most flood deaths occur in vehicles, and a rural road that dips through a draw or crosses an irrigation ditch can go from passable to lethal in minutes. Never drive through flooded roadways, and don’t assume a road you drove yesterday looks the same tonight.

If water gets into your home or outbuildings:

• Stay out of standing water where electricity may be present. Do not enter a flooded basement or shop until the water has receded and the power is confirmed off.
• Photograph everything before you touch anything — walls, floors, belongings, the high-water line. Documentation matters for insurance, and you only get one first look.
• Then call a local restoration contractor. Water left sitting starts a second wave of damage — swelling, wicking, and mold growth — within a day.

What this means for restoration teams

A rural creek-and-drainage flood warning in Fremont County produces a specific job mix: stream-overflow water in basements and crawlspaces of properties near the Popo Agie system, outbuilding and shop damage along the draws, and washed-out rural driveways and access roads that delay everyone — including the restoration crews. With 2 to 3 inches fallen and up to 2 more possible, expect saturated ground that keeps seeping into foundations overnight even where structures didn’t take direct water.

Damage categories to expect:

• Interior water intrusion in basements and crawlspaces of properties near the named drainages.
• Saturated drywall, insulation, and flooring in low-lying rooms — and outbuildings, shops, and ag structures that rarely have the same moisture protection as homes.
• Mold risk within 24–48 hours wherever water sits; rural properties with limited ventilation need fast drying.
• Sewage backup in low-lying areas if septic systems or storm drains surcharge.
• Access-road washouts — crews may need to reach properties by alternate routes, and job-site access should be confirmed before dispatch, not after.

The play: stage extraction and drying equipment for the Riverton/Lander corridor now, keep an on-call rotation through the morning, and capture the address, water source, and affected areas on the first call. Creeks crest after the rain stops — the demand window here runs through the night and into tomorrow as people wake up to what the water did. Field discipline: photo-document before mitigation, moisture-map every affected room, and keep the homeowner’s payment responsibility clear in writing before work starts.

FEMA & federal assistance

If the flooding damages your home and you need help beyond insurance, the FEMA Helpline is 1-800-621-3362 (7 a.m. to 10 p.m. local time, 7 days a week). You can also apply at DisasterAssistance.gov, through the FEMA mobile app, or in person at a Disaster Recovery Center — find one at fema.gov/drc.

Basic eligibility: U.S. citizenship or qualified status, identity verification, proof of occupancy or ownership, and unmet needs not covered by insurance. Apply as soon as it’s safe to do so — don’t wait for a disaster declaration to be finalized for your county.

Looking ahead

The warning expires at 9:30 PM MDT, but the six named drainages — especially the Little Popo Agie and Popo Agie Rivers — will keep running high after the rain stops. Rural roads through draws and low-water crossings can stay dangerous for hours after expiry. Watch for additional rounds of storms tonight; with saturated ground, any new cell re-floods fast.

For restoration operators, the demand window on a rural creek-flood event lags the warning: tonight’s emergency calls, tomorrow’s discovery calls as water recedes and damage surfaces, and a long tail of crawlspace and outbuilding jobs as people check properties they don’t live in. Keep crews available through the weekend.

Sources & how to verify

• NWS alert: Flash Flood Warning issued September 19 at 7:29PM MDT until September 19 at 9:30PM MDT by NWS Riverton WY
• Issuing office: NWS Riverton
• Check your county or ZIP: weather.gov

To verify for your own location, go to weather.gov, enter your county or ZIP code, and look for the current warnings box — or check the NWS Riverton office page linked above.

This post is for informational purposes and is not an official weather warning. Always follow instructions from local authorities and the National Weather Service.