Alert archive / North Carolina / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 2, NWS Newport/Morehead City, NC

May 10, 1990Bertie County, Hertford County, North Carolina

NWS Newport/Morehead City, NC issued this severe thunderstorm warning at May 10, 1990, 6:38 PM EDT for Bertie County, Hertford County, North Carolina. It was in force for 52 min.

The area

The counties it named.

The facts

Issued
May 10, 1990, 6:38 PM EDT (22:38 UTC)
Expired
May 10, 1990, 7:30 PM EDT
In force
52 min
Issued by
NWS Newport/Morehead City, NC
Area
Whole counties

Counties Bertie County, NC, Hertford 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, 10.6 hours before the alert went out and 169 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 1990-05-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 21 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 1990-05-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 102 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
21 J/kg
Mixed-layer CIN
-107 J/kg
Mixed-layer LCL
994 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
102 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

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

000 
TTAA00 KHAT 102238
SVRHAT
NCC015-073-091-102330-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CAPE HATTERAS NC
638 PM EDT THU MAY 10 1990
 
THE NATIONAL WEATHER SERVICE IN CAPE HATTERAS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  730 PM EDT
FOR PEOPLE IN THE FOLLOWING COUNTIES...
 
IN NORTHEAST NORTH CAROLINA
          ...NORTHERN BERTIE...WESTERN GATES...HERTFORD
 
AT 637 PM EDT...RADAR INDICATED A LINE OF POSSIBLY SEVERE
THUNDERSTORMS EXTENDING FROM WESTERN HALIFAX TO MARGARETSVILLE IN
NORTHAMPTON COUNTIES. THESE STORMS CAN PRODUCE VERY STRONG GUSTY
WINDS...LARGE HAIL...AND FREQUENT DANGEROUS LIGHTNING.
 
 
A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA.  REMEMBER
SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES
WITH LITTLE OR NO ADVANCE WARNING.  REMAIN CALM BUT BE ALERT TO
RAPIDLY CHANGING WEATHER CONDITIONS.
 
DCH

The office that day

Everything else NWS Newport/Morehead City, NC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 10, 6:38 PM EDTSevere Thunderstorm WarningMHXGates52 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.