Alert archive / West Virginia / Flash Flood Warnings in 2026

Flash Flood Warning 41, NWS Baltimore/Washington

August 27, 2026Berkeley County, West Virginia

NWS Baltimore/Washington issued this flash flood warning at Aug 27, 2026, 5:10 PM EDT for Berkeley County, West Virginia. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Aug 27, 2026, 5:10 PM EDT (21:10 UTC)
Expired
Aug 27, 2026, 7:52 PM EDT
In force
3 hr
Issued by
NWS Baltimore/Washington
Area
Storm-based polygon
Flood severity
None

County Berkeley County, WV

The radar

The Sterling radar (KLWX), 71 km from the middle of the area, began a volume at 21:12 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Washington/Dulle, VA (KIAD), launched 12:00Z, 9.2 hours before the alert went out and 79 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Washington/Dulle, VA at 12:00Z on 2026-08-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 728 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Washington/Dulle, VA at 12:00Z on 2026-08-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 145 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
728 J/kg
Mixed-layer CIN
-107 J/kg
Mixed-layer LCL
980 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
145 m²/s²
0-3 km storm-relative helicity
120 m²/s²
Significant tornado parameter
0.2
Supercell composite
2.7

Open this sounding in Storm Lab

The office that day

Everything else NWS Baltimore/Washington issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 26, 10:33 PM EDTSmall Craft AdvisoryLWX22 hr
Aug 27, 3:38 PM EDTSevere Thunderstorm WarningLWXRockingham, Shenandoah37 min
Aug 27, 4:13 PM EDTSevere Thunderstorm WarningLWXRockingham, Shenandoah47 min
Aug 27, 4:21 PM EDTSevere Thunderstorm WarningLWXFauquier, Rappahannock, Warren39 min
Aug 27, 4:49 PM EDTSevere Thunderstorm WarningLWXRockingham, City of Harrisonburg41 min
Aug 27, 5:07 PM EDTSevere Thunderstorm WarningLWXFrederick, Shenandoah, Warren, City of Winchester38 min
Aug 27, 5:22 PM EDTSevere Thunderstorm WarningLWXAugusta, Page, Rockingham, City of Harrisonburg38 min
Aug 27, 5:32 PM EDTSevere Thunderstorm WarningLWXFauquier, Page, Rappahannock, Warren28 min
Aug 27, 6:20 PM EDTSevere Thunderstorm WarningLWXLoudoun40 min
Aug 27, 6:50 PM EDTSevere Thunderstorm WarningLWXFrederick28 min
Aug 27, 6:56 PM EDTSevere Thunderstorm WarningLWXLoudoun49 min
Aug 27, 7:08 PM EDTSevere Thunderstorm WarningLWXAlbemarle, City of Charlottesville37 min
Aug 27, 4:11 PM EDTSevere Thunderstorm WarningLWXBaltimore, Harford34 min
Aug 27, 4:45 PM EDTSevere Thunderstorm WarningLWXWashington45 min
Aug 27, 5:17 PM EDTSevere Thunderstorm WarningLWXWashington28 min
Aug 27, 5:40 PM EDTSevere Thunderstorm WarningLWXFrederick, Washington50 min
Aug 27, 5:31 PM EDTFlash Flood Warning Considerable damage threatLWXBerkeley3 hr
Aug 27, 7:52 PM EDTAreal Flood WarningLWXBerkeley119 min

Nearby

Flash Flood Warnings in West Virginia, 2026Every flash flood warning in 2026

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.