Alert archive / Maryland / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 151, NWS Baltimore/Washington

September 26, 1994Charles County, Maryland

NWS Baltimore/Washington issued this severe thunderstorm warning at Sep 26, 1994, 3:54 PM EDT for Charles County, Maryland. It was in force for 51 min.

The area

The counties it named.

The facts

Issued
Sep 26, 1994, 3:54 PM EDT (19:54 UTC)
Expired
Sep 26, 1994, 4:45 PM EDT
In force
51 min
Issued by
NWS Baltimore/Washington
Area
Whole counties

County Charles County, MD

The nearest sounding before it

Washington/Dulle, VA (KIAD), launched 12:00Z, 7.9 hours before the alert went out and 63 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 1994-09-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 177 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 1994-09-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 51 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
177 J/kg
Mixed-layer CIN
-24 J/kg
Mixed-layer LCL
556 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
51 m²/s²
0-3 km storm-relative helicity
133 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.4

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
Sep 26, 3:03 PM EDTSevere Thunderstorm WarningLWXSpotsylvania42 min
Sep 26, 3:38 PM EDTTornado WarningLWXSpotsylvania, Stafford52 min
Sep 26, 4:45 PM EDTSevere Thunderstorm WarningLWXCharles, Prince George's45 min
Sep 26, 4:45 PM EDTSevere Thunderstorm WarningLWXSaint Mary's45 min
Sep 26, 5:08 PM EDTSevere Thunderstorm WarningLWXCalvert52 min
Sep 26, 5:26 PM EDTTornado WarningLWXCalvert49 min
Sep 26, 6:27 PM EDTSevere Thunderstorm WarningLWXCaroline, Queen Anne's, Talbot33 min

Nearby

Severe Thunderstorm Warnings in Maryland, 1994Every severe thunderstorm warning in 1994

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.