Alert archive / Maryland / Flash Flood Warnings in 1996

Flash Flood Warning 155, NWS Baltimore/Washington

August 27, 1996Washington County, Maryland

NWS Baltimore/Washington issued this flash flood warning at Aug 27, 1996, 1:23 PM EDT for Washington County, Maryland. It was in force for 97 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
Aug 27, 1996, 1:23 PM EDT (17:23 UTC)
Expired
Aug 27, 1996, 3:00 PM EDT
In force
97 min
Issued by
NWS Baltimore/Washington
Area
Whole counties

County Washington County, MD

The radar

The Sterling radar (KLWX), 75 km from the middle of the area, began a volume at 17:22 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

Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 5.4 hours before the alert went out and 148 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, Phillips Aaf/Abe, MD at 12:00Z on 1996-08-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 252 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Phillips Aaf/Abe, MD at 12:00Z on 1996-08-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 0 square meters per square second.1939Sfc1 km3 km6 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
252 J/kg
Mixed-layer CIN
-29 J/kg
Mixed-layer LCL
947 m above ground
0-6 km bulk shear
13 kt
0-1 km storm-relative helicity
0 m²/s²
0-3 km storm-relative helicity
63 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 26, 9:19 PM EDTFlash Flood WarningLWXRockingham2 hr
Aug 26, 10:05 PM EDTFlash Flood WarningLWXAlbemarle115 min
Aug 27, 12:19 AM EDTFlash Flood WarningLWXRockingham111 min
Aug 27, 12:19 AM EDTFlash Flood WarningLWXMadison111 min
Aug 27, 3:51 PM EDTFlash Flood WarningLWXPage99 min
Aug 27, 4:27 PM EDTFlash Flood WarningLWXGreene, Rockingham93 min
Aug 27, 2:01 PM EDTSevere Thunderstorm WarningLWXMontgomery49 min
Aug 27, 2:56 PM EDTTornado WarningLWXHoward34 min
Aug 27, 3:11 PM EDTSevere Thunderstorm WarningLWXAnne Arundel, Baltimore, City of Baltimore49 min
Aug 27, 4:12 PM EDTSevere Thunderstorm WarningLWXPrince George's63 min
Aug 27, 4:37 PM EDTSevere Thunderstorm WarningLWXCharles63 min
Aug 26, 9:19 PM EDTFlash Flood WarningLWXGrant2 hr
Aug 27, 5:30 PM EDTFlash Flood WarningLWXHampshire90 min

Nearby

Flash Flood Warnings in Maryland, 1996Every flash flood warning in 1996

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.