Alert archive / Delaware / Severe Thunderstorm Warnings in 1993

Severe Thunderstorm Warning 3, NWS Wilmington, NC

April 1, 1993Sussex County, Delaware

NWS Wilmington, NC issued this severe thunderstorm warning at Apr 1, 1993, 12:50 PM EST for Sussex County, Delaware. It was in force for 55 min.

The area

The counties it named.

The facts

Issued
Apr 1, 1993, 12:50 PM EST (17:50 UTC)
Expired
Apr 1, 1993, 1:45 PM EST
In force
55 min
Issued by
NWS Wilmington, NC
Area
Whole counties

County Sussex County, DE

The nearest sounding before it

Atlantic City In, NJ (KACY), launched 12:00Z, 5.8 hours before the alert went out and 112 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, Atlantic City In, NJ at 12:00Z on 1993-04-01Temperature 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, Atlantic City In, NJ at 12:00Z on 1993-04-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 200 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
492 m above ground
0-6 km bulk shear
49 kt
0-1 km storm-relative helicity
200 m²/s²
0-3 km storm-relative helicity
378 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

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 Wilmington, NC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 1, 4:27 AM ESTFlash Flood WarningILMNew Castle4 hr
Apr 1, 1:03 PM ESTSevere Thunderstorm WarningILMKent, Sussex42 min
Apr 1, 6:31 PM ESTSevere Thunderstorm WarningILMKent59 min

Nearby

Severe Thunderstorm Warnings in Delaware, 1993Every severe thunderstorm warning in 1993

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.