This is a live Thursday afternoon snapshot of local storm-type events across the United States as of the afternoon of Thursday, September 10, 2026. The organized severe corridor has broadened and weakened relative to Wednesday’s Slight Risk and Watch 665. The Storm Prediction Center holds a Marginal Risk of severe thunderstorms from the southern High Plains to the southern Mid-Atlantic coast, valid through early Friday morning. The Weather Prediction Center maintains a Slight Risk of excessive rainfall over the upper Ohio Valley into the central Appalachians, with Marginal flood risk farther west and southwest.
These remain county- and ZIP-scale thunderstorms, not a mainland hurricane landfall. Restoration exposure this afternoon and evening is primarily sporadic damaging wind (roof, siding, trees on service drops), isolated large hail on the High Plains, and flash-flood water where cells train over the Ohio Valley–Appalachians corridor. Conditions change fast. Verify with the National Weather Service for the specific county or ZIP before you roll.
What is live this afternoon
No convective watches are currently valid. The most recent watch (Severe Thunderstorm Watch 665) expired overnight. SPC’s 2000 UTC Day 1 outlook (issued 2:40 p.m. CDT) highlights sporadic damaging wind gusts from the southern Plains to the southern Mid-Atlantic this afternoon and evening, plus isolated large hail over south-central Colorado into northeast New Mexico and possibly the Oklahoma and Texas Panhandles. Mesoscale Discussion 2279 (issued ~2:15 p.m. CDT) covers northeast Arkansas into parts of Tennessee and Kentucky: widely scattered storms capable of locally damaging winds, watch unlikely.
WPC’s Day 1 Excessive Rainfall Outlook (updated 1554 UTC) keeps a Slight Risk over the upper Ohio Valley into the central Appalachians—eastern Kentucky and West Virginia remain the core area of highest QPF and training potential. Marginal Risk areas cover parts of the Mid-Atlantic, south-central Plains/Mid-Mississippi Valley, and the Southwest (Arizona–New Mexico into southern California higher terrain).
Hotspot 1 — Northeast Arkansas into Kentucky and Tennessee
MD 2279 flags the live severe potential. Storms developing along and south of a surface boundary in a hot, humid air mass (upper 80s to mid-90s, PWAT near 2 inches, MLCAPE over 1,500 J/kg). Mid-level flow of 25–30 kt may support a few organized multicell clusters. Primary hazard is locally damaging wind gusts (most probable peak 55–70 mph). Coverage of severe is expected to stay limited; no watch is anticipated.
Cities and counties to watch: Jonesboro and northeast Arkansas counties; western and central Kentucky (including areas near the Ohio River); western and middle Tennessee.
Restoration read: Wind first—stage tarps, generators, and tree crews for late afternoon into evening. If a cell trains or produces heavy rain on the WPC slight-risk overlay, treat the same ZIP as a water job by morning.
Hotspot 2 — Upper Ohio Valley and central Appalachians (flood)
WPC Slight Risk of excessive rainfall centers on eastern Kentucky and West Virginia, with a minor eastward expansion into east-central West Virginia on the latest update. Anomalous precipitable water (near 99th percentile), MUCAPE >1,000 J/kg, and potential for training along a front parallel to the mid-level flow support 2–3 inch per hour rates. Soils have been drier of late, but 1-hour flash-flood guidance around 2 inches still leaves room for scattered flash flooding on urban streets, small streams, and low-lying areas.
Some storms are expected to spill east across northern Virginia, northern Maryland, and the Mid-Atlantic I-95 corridor this evening—progressive but still moisture-laden.
Restoration read: Water is the ticket tonight if cells train. Extraction and drying clocks start the same night water enters a structure. Photograph damage in remaining daylight only if safe.
Hotspot 3 — Southern High Plains and residual Kansas–Missouri wind damage
Isolated large hail remains possible over the Raton Mesa vicinity (south-central Colorado into northeast New Mexico) and portions of the Oklahoma/Texas Panhandles under the Marginal Risk. Farther east, residual tree and wire damage from Wednesday evening’s line across parts of Kansas, Missouri, Ohio, and Pennsylvania is already on the books. Local Storm Reports from the overnight period include multiple 60–70+ mph gusts and tree/wire damage across southeast Kansas into west-central Missouri and scattered Ohio counties.
Restoration read: High Plains is today’s new hail/wind cells; Kansas–Missouri–Ohio is yesterday’s wind swath still generating claims. Do not send the same crew to both stories without checking which county actually has active warnings now.
Just hit
Wednesday’s Severe Thunderstorm Watch 665 (northern Ohio, northwest Pennsylvania, western New York) produced multiple wind reports—trees and utility lines down across Erie, Stark, Coshocton, and neighboring counties, plus scattered Kansas and Missouri damage. Those are already tickets. Today’s new work, if it verifies, is the AR–KY–TN wind corridor plus localized flash flooding under the WPC Slight Risk.
Pulse table
| Region | Main threats | SPC / NWS level | Status this afternoon |
|---|---|---|---|
| NE AR / KY / TN | Damaging wind, lightning | Marginal + MD 2279 | Live cells, watch unlikely |
| Upper OH Valley / central Appalachians | Flash flood, training heavy rain | WPC Slight excessive rainfall | Tonight into Friday morning |
| Southern High Plains / Raton Mesa | Isolated large hail, gusty wind | Marginal | Afternoon–evening cells |
| KS / MO / OH residual | Tree/wire damage from Wednesday | Aftermath | Claims already open |
| Mid-Atlantic spillover | Heavy rain, localized flood | WPC Marginal | Evening progressive storms |
| Atlantic / Gulf vs. U.S. mainland | No landfalling hurricane | Quiet on the mainland coast | Quiet |
What this means for restoration teams
Marginal-risk wind is still roof, siding, gutter, and tree-on-structure work when a cell organizes. Hail on the High Plains is vehicle and roof dents. The Ohio Valley–Appalachians flood risk is wet drywall and a 24–48 hour mold clock if water enters. Residual Wednesday damage is already generating calls across the Ohio–Pennsylvania corridor and the Kansas–Missouri line.
For teams near the MD 2279 area or the WPC Slight Risk: stage before the densest afternoon heating, not after the first warning. Property owners should photograph damage in daylight if safe, call the carrier, and start extraction the same night if water is inside.
What this is not
This is not a regional derecho and not a U.S. mainland hurricane landfall. The work this afternoon and evening, if it comes, will be scattered: a wind swath through an Arkansas or Kentucky county, a flooded intersection where eastern Kentucky or West Virginia cells train, leftover tree damage from Wednesday’s Ohio–PA activity. That is the local-storm pattern this desk should staff.
Looking ahead
Friday (Day 2) the SPC has a Slight Risk of severe thunderstorms from central Nebraska into the Upper Midwest late afternoon into Friday night—damaging wind, large hail, and a couple of tornadoes possible as an upper shortwave and surface front organize. Later in the period a Marginal Risk appears on Day 3. Watch the next Storm Tracker update rather than assuming today’s Marginal is the last line of the week.
Sources and how to verify
Primary sources: NOAA Storm Prediction Center Day 1 Convective Outlook (2000 UTC, September 10, 2026) and Mesoscale Discussion 2279; Weather Prediction Center Day 1 Excessive Rainfall Outlook (updated 1554 UTC); SPC Local Storm Reports for the overnight and early-day period; National Weather Service warning text. Related desk: Thursday morning Storm Updates and Wednesday afternoon Storm Updates.
Check weather.gov for the county warning, spc.noaa.gov for the outlook, watches, MDs, and LSRs, and WPC excessive rainfall 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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