Alert archive / North Carolina / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 32, NWS Wilmington, NC

July 1, 1990Onslow County, North Carolina

NWS Wilmington, NC issued this severe thunderstorm warning at Jul 1, 1990, 7:28 PM EDT for Onslow County, North Carolina. It was in force for 62 min.

The area

The counties it named.

The facts

Issued
Jul 1, 1990, 7:28 PM EDT (23:28 UTC)
Expired
Jul 1, 1990, 8:30 PM EDT
In force
62 min
Issued by
NWS Wilmington, NC
Area
Whole counties

County Onslow County, NC

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

Cape Hatteras, NC (KHAT), launched 12:00Z, 11.5 hours before the alert went out and 181 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, Cape Hatteras, NC at 12:00Z on 1990-07-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1043 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, Cape Hatteras, NC at 12:00Z on 1990-07-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 92 square meters per square second.193958Sfc1 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
1043 J/kg
Mixed-layer CIN
-111 J/kg
Mixed-layer LCL
1185 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
92 m²/s²
0-3 km storm-relative helicity
108 m²/s²
Significant tornado parameter
0.2
Supercell composite
1.3

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KILM 012328
SVRILM
NCC019-133-020030-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM AND SPECIAL MARINE WARNING 
NATIONAL WEATHER SERVICE WILMINGTON NC
728 PM EDT SUN JUL 1 1990

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
AND SPECIAL MARINE WARNING EFFECTIVE UNTIL 830 PM EDT FOR 
PEOPLE IN THE FOLLOWING COUNTIES

   IN THE STATE OF NORTH CAROLINA
      BRUNSWICK...ONSLOW

...THIS WARNING ALSO INCLUDES THE ADJACENT COASTAL WATERS FOR THE
COUNTIES JUST MENTIONED

AT 730 PM EDT THE WILMINGTON RADAR INDICATED ADDITIONAL STRONG
THUNDERSTORMS WITH SEVERE WEATHER SIGNATURES. THEY WERE NEAR
WALLACE IN DUPLIN COUNTY .. NEAR JACKSONVILLE IN ONSLOW COUNTY AND
SOUTHWEST OF BOLTON IN COLUMBUS COUNTY. THE STORMS CONTINUE TO MOVE
SOUTHEAST AROUND 35 MPH.

SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS IN EXCESS OF 55
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR
OF YOUR HOME OR BUSINESS.  HEAVY RAINS FLOOD ROADWAYS QUICKLY...
AVOID DRIVING INTO AREAS WHERE WATER COVERS THE ROAD.

 BJ

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

Local storm report, Jul 1, 5:01 PM EDT, 2 hours 27 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

LEIN
Local storm report, Jul 1, 6:30 PM EDT, 58 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE WILMINGTON NC
 627 PM EDT SUN JUL 01 1990

 TIME        EVENT
617 PM EDT   GOLF BALL SIZE HAIL REPORTED NEAR DUNN IN SAMPSON
             COUNTY...NUMEROUS TREES DOWN AND EXTENSIVE FLOODING.
             REPORTED BY THE SHERIFFS OFFICE.

MAC
Local storm report, Jul 1, 6:35 PM EDT, 53 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE CAPE HATTERAS NC
635 PM EDT SUN JUL 01 1990

 TIME            EVENT
1750 EDT    DIME AND NICKEL SIZE HAIL     REPORTED BY WEATHER SPOTTERS

1802 EDT    TORNADO                       WEATHER SPOTTER REPORTED
                                          TORNADO TOUCHED DOWN.  TREES
                                          DOWN

LEIN
Local storm report, Jul 1, 6:54 PM EDT, 34 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE WILMINGTON NC
 627 PM EDT SUN JUL 01 1990

 TIME        EVENT
617 PM EDT   GOLF BALL SIZE HAIL REPORTED NEAR GODWIN IN SAMPSON
             COUNTY...NUMEROUS TREES DOWN AND EXTENSIVE FLOODING.
             REPORTED BY THE SHERIFFS OFFICE.

MAC

CORRECTED FOR TOWN...GODWIN INSTEAD OF DUNN
Local storm report, Jul 1, 6:58 PM EDT, 30 minutes before
STORM REPORT...CORRECTION
NATIONAL WEATHER SERVICE CAPE HATTERAS NC
635 PM EDT SUN JUL 01 1990

 TIME            EVENT
1750 EDT    DIME AND NICKEL SIZE HAIL     REPORTED BY WEATHER SPOTTERS

1802 EDT    TORNADO                       GATES COUNTY. WEATHER SPOTTER
                                          REPORTED TORNADO TOUCHED DOWN
                                          NEAR STATE ROAD 1116.  TREES
                                          DOWN
...CORRECTION FOR LOCATION OF TORNADO

LEIN
Local storm report, Jul 1, 7:19 PM EDT, 9 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE WILMINGTON NC
717 PM EDT SUN JUL 01 1990

 TIME        EVENT
655 PM EDT   TREES DOWN...POWER LINES DOWN...AND EXTENSIVE
             FLOODING IN EVERGREEN IN COLUMBUS COUNTY.
             REPORTED BY THE SHERIFFS OFFICE.

MAC

The office that day

Everything else NWS Wilmington, NC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 1, 6:09 PM EDTSevere Thunderstorm WarningILMSampson66 min
Jul 1, 6:49 PM EDTSevere Thunderstorm WarningILMDuplin, Pender56 min
Jul 1, 7:05 PM EDTSevere Thunderstorm WarningILMBladen, Columbus55 min
Jul 1, 7:28 PM EDTSevere Thunderstorm WarningILMBrunswick62 min
Jul 1, 7:38 PM EDTSevere Thunderstorm WarningILMNew Hanover67 min

Nearby

Severe Thunderstorm Warnings in North Carolina, 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.