Storm Updates: New Mexico Flood Moderate, Utah–Southeast Marginal — Tuesday, September 22, 2026

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This is a live Tuesday afternoon snapshot of U.S. local-storm activity as of Tuesday, September 22, 2026. The organized flood desk remains over southern New Mexico. The Storm Prediction Center 2000 UTC Day 1 Convective Outlook still holds two Marginal Risk corridors — much of Utah into adjacent Wyoming and Colorado, and a portion of the Southeast that the 20Z update shifted farther south and east into central Georgia and southern Alabama. No convective watches are currently valid. Restoration exposure this afternoon into tonight is water first in southern New Mexico and far west Texas, isolated severe wind and marginally severe hail on the Utah corridor, locally severe gusts plus leftover flood axes in the Southeast and central Appalachians, and tree/wire work already on the board in Lauderdale County, Alabama.

These are county- and ZIP-scale thunderstorms and flood pulses, not a U.S. mainland hurricane landfall. There is no named tropical cyclone threatening U.S. land this afternoon. Conditions change fast. Verify with the National Weather Service for the specific county or ZIP before you roll. Morning desk: Storm Updates September 22, 2026 (Morning).

What is live this afternoon

SPC’s 2000 UTC Day 1 Convective Outlook (issued 2:56 p.m. CDT Tuesday, September 22, 2026; Halbert/Lyons; valid 222000Z–231200Z) keeps a Marginal Risk for much of Utah into adjacent Wyoming and Colorado, and across a portion of the Southeast. Summary: isolated severe wind gusts expected today in Utah into southwest Wyoming and western Colorado; thunderstorms capable of strong to locally severe damaging gusts also possible across parts of the Southeast. The 20Z update moved the Southeast Marginal farther south and east into central Georgia and southern Alabama, where storms had already developed in an unstable airmass with steep low-level lapse rates.

No convective watches were currently valid as of the SPC watches page update at 15:56:05 UTC Tuesday, September 22, 2026. Most recent watch on the board: 0674. Check spc.noaa.gov/products/watch before you stage.

WPC’s Day 1 Excessive Rainfall Outlook (updated 1553 UTC Tuesday, September 22, 2026; Taylor/Chenard; valid 16Z Tue–12Z Wed) still holds a Moderate Risk across portions of southern New Mexico. WPC notes a potentially significant multi-day flood event over New Mexico and far southwest Texas, with 1–2 inches per hour rain rates this afternoon and training bands tonight. Neighborhood guidance: moderate chance of at least 3 inches (about 40–60 percent) and a low chance of at least 5 inches. Slight Risk axes remain over central to southeast Virginia into South Carolina and West Virginia into southwest Virginia. South Florida stays a WPC Marginal urban-flood desk.

Live warning-scale water this afternoon includes NWS flash-flood warnings for parts of Lincoln/Socorro, Doña Ana/Otero in New Mexico, and Randolph/Webster in West Virginia — already hung as separate Tygart Media warning pulses. NWS also had a flood advisory for west-central Lee County, Alabama (Auburn/Opelika) into late afternoon and a severe thunderstorm warning earlier over Jackson and DeKalb Counties, Alabama.

Hotspot 1 — Southern New Mexico / far west Texas

Still the national flood desk. An upper trough, jet right-entrance dynamics, deep southerly moisture, and precipitable water toward mid/late September record levels support a multi-day event. Afternoon is scattered thunderstorms and flash-flood potential; overnight guidance concentrates a rain shield with heavier cores over southern New Mexico. Sacramento Mountains burn scars remain in the higher-impact language. Flash-flood warnings this afternoon already covered Lincoln, Socorro, Doña Ana, and Otero Counties.

Restoration read: water first, overnight worse than the afternoon pulse. Stage pumps and air movers before the shield organizes. Low-water crossings and burn-scar runoff fail first. Start extraction the same night if water is inside.

Hotspot 2 — Utah into southwest Wyoming and western Colorado

SPC Marginal wind-and-hail corridor is the afternoon convective desk in the West. A potent shortwave over the western Great Basin and a belt of stronger mid-level flow from northern Arizona into central and northern Utah support scattered to numerous storms. Buoyancy stays modest (MLCAPE generally under 1,000 J/kg), but shear and cold mid-levels support organized cells, isolated large hail, and strong gusts off high bases and steep low-level lapse rates. Activity can spill into western Colorado and southwest Wyoming late afternoon into early evening. Larger centers inside the earlier outlook footprint include Salt Lake City, West Valley City, Provo, West Jordan, and Orem.

Restoration read: wind and isolated hail, not a flood CAT. Stage tarps, generators, and tree crews before early evening. Soft-metal roofs and skylights after stronger cores only if it is safe.

Hotspot 3 — Southeast / southern Appalachians

SPC Marginal for the Southeast is a slow-moving cold front into a moist airmass. The 20Z update pulled the risk south and east into central Georgia and southern Alabama, matching storms already on radar. Weak shear keeps the mode multicellular and outflow-dominant; water-loaded downdrafts can still put 50–60 mph gusts on the ground. Today’s preliminary LSRs already show Lauderdale County, Alabama wind damage: power lines down west of Lexington around 1814 UTC, a power pole and lines on a vehicle west of Rogersville around 1835 UTC, and lines down at Lauderdale County High School and the adjacent parking lot around 1856 UTC (NWS Huntsville).

WPC Slight flood axes remain over southeast Virginia into South Carolina and West Virginia into southwest Virginia, where soils are already wet and flash-flood guidance is lower. Randolph and Webster Counties, West Virginia, carried a live flash-flood warning into the evening.

Restoration read: gusty wind and street flooding can share the same ZIP. Alabama tree and wire jobs are already tickets. Charlotte-to-Atlanta language from this morning is not a derecho — treat each county warning as a local pulse.

Just hit

SPC preliminary local storm reports for the 22/1200 UTC–23/1159 UTC window (as of this afternoon hang) show no tornado reports and no hail reports yet. Wind reports on the board are Lauderdale County, Alabama: lines down 3 W Lexington; pole and lines on a vehicle 2 W Rogersville; lines down at Lauderdale County High School in Rogersville. Those are already restoration tickets — trees, wire, and possible vehicle/roof work — not a regional outbreak.

Monday night’s Appalachians–Southeast flash-flood pulse is aftermath. This afternoon’s live water is New Mexico and pockets of West Virginia, plus a Lee County, Alabama flood advisory earlier this afternoon.

Pulse table

RegionMain threatsSPC / WPC / NWS levelStatus this afternoon
Southern NM / far west TXFlash flood, training rain tonight, burn-scar runoffWPC Moderate + live FFWsLive flood desk today–Wed
Utah into SW WY / western COSevere wind gusts, isolated large hailSPC MarginalAfternoon–early evening
SE / central GA / southern ALLocally severe damaging gusts, trees/wireSPC Marginal (shifted S/E at 20Z)Live; AL LSRs already in
SE VA into SC; WV into SW VAFlash flood / heavy rainWPC Slight + WV FFWsToday into tonight
South FloridaUrban flash floodWPC MarginalLocal
U.S. mainland tropicsNo landfalling tropical cycloneNHC quiet for mainlandQuiet

What this means for restoration teams

Southern New Mexico is the water CAT if the Moderate risk verifies overnight — extraction, drying, and a 24–48 hour mold clock. Utah’s Marginal corridor is wind and isolated hail. Southeast Marginal wind is already producing Lauderdale County tickets; treat Georgia and Alabama warnings as local, not a derecho. West Virginia water is a second flood desk on already-wet ground. Stage New Mexico before the overnight shield. Start extraction the same night if water is inside. Turn around, don’t drown.

What this is not

This is not a regional derecho and not a U.S. mainland hurricane landfall. Post-tropical Fay is open Atlantic near the Azores and is not a U.S. land threat. Hurricane Polo and Tropical Storm Odalys remain eastern Pacific systems and are not mainland landfall threats today. No convective watches are up. Do not invent a named CAT for Restoration Intel off this pulse.

Looking ahead

SPC’s current Day 2 outlook (Wednesday, September 23) is Marginal Risk as of the 1719 UTC issuance (Dean). Day 3 is currently no severe thunderstorms. That does not cancel tonight’s New Mexico flood problem or this evening’s Utah and Southeast Marginal corridors. Watch the next Storm Tracker update rather than assuming the Moderate rainfall risk is the last line of the week.

Sources and how to verify

Primary sources dated Tuesday, September 22, 2026: SPC 2000 UTC Day 1 Convective Outlook (Halbert/Lyons, 2:56 p.m. CDT); SPC watches page updated 15:56:05 UTC (no watches valid; last watch 0674); SPC today’s LSRs (Lauderdale County, AL wind); WPC Day 1 Excessive Rainfall Outlook updated 1553 UTC (Taylor/Chenard); NWS flash-flood warnings for Lincoln/Socorro, Doña Ana/Otero, NM and Randolph/Webster, WV; NHC advisories (Fay remnant, Polo, Odalys). Morning desk: September 22, 2026 (Morning).

Check weather.gov for the county warning, spc.noaa.gov for the outlook, watch, and local storm reports, and WPC Day 1 ERO for the flood overlay.

Informational only — not an official weather warning. Follow local authorities and the National Weather Service. Turn around, don’t drown.

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