Alert archive / Delaware / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 27, NWS Wilmington, NC
NWS Wilmington, NC issued this severe thunderstorm warning at Jul 1, 1990, 5:26 PM EDT for Kent County, Delaware. It was in force for 34 min.
The area
The counties it named.
The facts
- Issued
- Jul 1, 1990, 5:26 PM EDT (21:26 UTC)
- Expired
- Jul 1, 1990, 6:00 PM EDT
- In force
- 34 min
- Issued by
- NWS Wilmington, NC
- Area
- Whole counties
County Kent County, DE
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
Atlantic City In, NJ (KACY), launched 12:00Z, 9.4 hours before the alert went out and 95 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.
- Mixed-layer CAPE
- 413 J/kg
- Mixed-layer CIN
- -74 J/kg
- Mixed-layer LCL
- 990 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 32 m²/s²
- 0-3 km storm-relative helicity
- 86 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.6
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KILG 012127 SVRILG DEC001-012230- BULLETIN - EBS EMERGENCY BROACAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE WILMINGTON DE 526 PM EDT SUN JUL 1 1990 THE NATIONAL WEATHER SERVICE IN WILMINGTON HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 630 PM EDT FOR PEOPLE IN THE FOLLOWING LOCATIONS...... IN CENTRAL DELAWARE ...KENT COUNTY WEATHER RADAR SHOWS A SEVERE THUNDERSTORM OVER NORTHERN KENT COUNTY MOVING TOWARD THE SOUTHEAST AT 40 MPH. IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER FROM THE WEATHER IN A STRONG BUILDING. DAMAGING WIND...LARGE HAIL...VERY HEAVY RAIN... AND DEADLY LIGHTNING ARE ALL POSSIBLE IN SEVERE THUNDERSTORMS. STAY INSIDE AWAY FROM WINDOWS U%NTIL THE STORM HAS PASSED.
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
In the hours before
Special weather statement, Jul 1, 3:54 PM EDT, 1 hour 32 minutes before
NCZ001-002-003-012046- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CAPE HATTERAS NC 345 PM EDT SUN JUL 01 1990 AT 330 PM EDT...WEATHER RADAR WAS TRACKING A STRONG THUNDERSTORMS OVER SOUTHAMPTON COUNTY IN VIRGINIA AND NORTHAMPTON COUNTY IN NORTH CAROLINA. THESE THUNDERSTORMS ARE CONTINUING TO INTENSIFY AND MAY APPROACH SEVERE LIMITS AS THEY MOVE INTO NORTHERN HERTFORD AND GATES COUNTIES IN NORTH CAROLINA DURING THE NEXT HOUR. PEOPLE IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR STRONG GUSTY WINDS ...FREQUENT CLOUD TO GROUND LIGHTNING AND POSSIBLY HAIL FROM THIS STORM. HEAVY RAINS WILL ALSO BE A PROBLEM...POTENTIALLY CREATING LOCALIZED FLOODING CONDITIONS. FT
Local storm report, Jul 1, 5:01 PM EDT, 25 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE CAPE HATTERAS NC
500 PM EDT SUN JUL 01 1990
TIME EVENT
1630 EDT GOLF BALL SIZE HAIL REPORTED BY WEATHER SPOTTERS
NEAR THE TOWN OF SUNBURY AND
WHITE OAK AREA OF GATES
COUNTY
1645 EDT GOLF BALL SIZE HAIL REPORTED BY THE HERTFORD
' COUNTY SHERIFF
LEINThe office that day
Everything else NWS Wilmington, NC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 1, 1:17 AM EDT | Severe Thunderstorm Warning | ILM | Kent, Sussex | 118 min |
| Jul 1, 5:06 PM EDT | Severe Thunderstorm Warning | ILM | Sussex | 54 min |
Nearby
Severe Thunderstorm Warnings in Delaware, 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.