Alert archive / Maryland / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 63, NWS Baltimore/Washington

August 13, 1990Kent County, Queen Anne's County, Maryland

NWS Baltimore/Washington issued this severe thunderstorm warning at Aug 13, 1990, 6:56 PM EDT for Kent County, Queen Anne's County, Maryland. It was in force for 64 min.

The area

The counties it named.

The facts

Issued
Aug 13, 1990, 6:56 PM EDT (22:56 UTC)
Expired
Aug 13, 1990, 8:00 PM EDT
In force
64 min
Issued by
NWS Baltimore/Washington
Area
Whole counties

Counties Kent County, MD, Queen Anne's County, MD

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Washington/Dulle, VA (KIAD), launched 12:00Z, 10.9 hours before the alert went out and 115 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 1990-08-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 1990-08-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 92 square meters per square second.1939Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
NaN m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
92 m²/s²
0-3 km storm-relative helicity
114 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 13, 7:13 PM EDTSevere Thunderstorm WarningLWXCulpeper, Fauquier62 min
Aug 13, 7:57 PM EDTSevere Thunderstorm WarningLWXPrince William, Stafford63 min

Nearby

Severe Thunderstorm Warnings in Maryland, 1990Every severe thunderstorm warning in 1990

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.