Alert archive / Virginia / Flash Flood Warnings in 2025

Flash Flood Warning 32, NWS Baltimore/Washington

June 13, 2025Frederick County, Virginia

NWS Baltimore/Washington issued this flash flood warning at Jun 13, 2025, 6:31 PM EDT for Frederick County, Virginia. It was in force for 54 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jun 13, 2025, 6:31 PM EDT (22:31 UTC)
Expired
Jun 13, 2025, 7:25 PM EDT
In force
54 min
Issued by
NWS Baltimore/Washington
Area
Storm-based polygon
Flood severity
None

County Frederick County, VA

The radar

The Sterling radar (KLWX), 72 km from the middle of the area, began a volume at 22:33 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

Pittsburgh, PA (KPIT), launched 12:00Z, 10.5 hours before the alert went out and 206 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, Pittsburgh, PA at 12:00Z on 2025-06-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 378 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, Pittsburgh, PA at 12:00Z on 2025-06-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 39 square meters per square second.19395878Sfc1 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
378 J/kg
Mixed-layer CIN
-58 J/kg
Mixed-layer LCL
1058 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
39 m²/s²
0-3 km storm-relative helicity
39 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 13, 3:45 AM EDTFlood WatchLWXArlington, Culpeper, Fairfax, Fauquier, Greene, King George and 12 more20 hr
Jun 13, 5:30 PM EDTSevere Thunderstorm WarningLWXAugusta, City of Staunton, City of Waynesboro45 min
Jun 13, 5:47 PM EDTSevere Thunderstorm WarningLWXPage, Shenandoah28 min
Jun 13, 5:50 PM EDTFlash Flood WarningLWXShenandoah72 min
Jun 13, 6:26 PM EDTFlash Flood Warning Considerable damage threatLWXPage, Shenandoah76 min
Jun 13, 6:29 PM EDTFlash Flood WarningLWXPage73 min
Jun 13, 6:39 PM EDTSevere Thunderstorm WarningLWXAugusta, City of Waynesboro24 min
Jun 13, 5:06 PM EDTSevere Thunderstorm WarningLWXMontgomery, Prince George's22 min
Jun 13, 7:11 PM EDTSevere Thunderstorm WarningLWXPrince George's34 min
Jun 13, 3:49 PM EDTFlash Flood WarningLWXGrant106 min
Jun 13, 3:57 PM EDTFlash Flood WarningLWXGrant, Hardy2 hr
Jun 13, 4:17 PM EDTFlash Flood WarningLWXHampshire, Hardy105 min

Nearby

Flash Flood Warnings in Virginia, 2025Every flash flood warning in 2025

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.