Alert archive / North Carolina / Severe Thunderstorm Warnings in 1993

Severe Thunderstorm Warning 39, NWS Wilmington, NC

July 4, 1993Pamlico County, North Carolina

NWS Wilmington, NC issued this severe thunderstorm warning at Jul 4, 1993, 4:54 PM EDT for Pamlico County, North Carolina. It was in force for 66 min.

The area

The counties it named.

The facts

Issued
Jul 4, 1993, 4:54 PM EDT (20:54 UTC)
Expired
Jul 4, 1993, 6:00 PM EDT
In force
66 min
Issued by
NWS Wilmington, NC
Area
Whole counties

County Pamlico County, NC

The nearest sounding before it

Cape Hatteras, NC (KHAT), launched 12:00Z, 8.9 hours before the alert went out and 107 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 1993-07-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2069 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 1993-07-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -12 square meters per square second.1939Sfc1 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
2069 J/kg
Mixed-layer CIN
-9 J/kg
Mixed-layer LCL
625 m above ground
0-6 km bulk shear
5 kt
0-1 km storm-relative helicity
-12 m²/s²
0-3 km storm-relative helicity
-7 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 KILM 042153 RRA
SVRILM
NCC137-042200-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE WILMINGTON NC
454 PM EDT SUN JUL 4 1993
 
THE NATIONAL WEATHER SERVICE IN WILMINGTON HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  600 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN EAST CENTRAL NORTH CAROLINA
 
   ...PAMLICO COUNTY
 
AT 450 PM RADAR INDICATED A SEVERE THUNDERSTORM NEAR BAYBORO MOVING
SOUTHEAST AT AROUND 5 MILES AN HOUR
 
 
PEOPLE IN THE PATH OF THIS STORM SHOULD BE ALERT FOR LARGE HAIL AND
DAMAGING WINDS. FREQUENT LIGHTNING AND LOCALLY HEAVY RAIN CAN OCCUR
WITH ANY THUNDERSTORM.

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 4, 4:45 PM EDT, 9 minutes before
NCZ015-016-017-042145-

SPECIAL WEATHER STATEMENT RADAR SUMMARY AND SHORT TERM FORECAST
NATIONAL WEATHER SERVICE WILMINGTON NC
445 PM EDT SUN JUL 4 1993

...STRONG THUNDERSTORMS ARE DEVELOPING ACROSS SOUTHEASTERN NORTH
CAROLINA...

AT 425 PM...SCATTERED SHOWERS AND STRONG THUNDERSTORMS WERE SOUTH OF
A LINE FROM JUST SOUTH OF GREENVILLE TO JUST WEST OF FAYETTEVILLE.  THE
STRONGEST THUNDERSTORMS WERE JUST NORTH OF NEW BERN...JUST WEST OF
FAYETTEVILLE AND JUST OFF WRIGHTSVILLE BEACH.

REPORTS OF VERY HEAVY RAIN AND FREQUENT DEADLY LIGHTNING HAVE BEEN
RECEIVED SO IF THREATENING WEATHER APPROACHES...SEEK SAFE SHELTER.
STRONG GUSTY WINDS AND SMALL HAIL CAN ALSO ACCOMPANY ANY THUNDERSTORMS.
MARINERS BOATING ALONG THE COASTAL WATERS OR PAMLICO SOUND SHOULD SEEK
SAFE HARBOR IF THREATENING WEATHER APPROACHES.

THE RAIN WAS MOVING SOUTHEAST AT AROUND 5 MILES AN HOUR.
SHOWERS AND STRONG THUNDERSTORMS WILL CONTINUE OVER SOUTHEASTERN
NORTH CAROLINA THROUGH THIS EVENING SO PERSONS SHOULD PLAN ACCORDINGLY
BEFORE GOING TO FIREWORKS DISPLAYS.

ONCE THE SUN SETS THE STORMS SHOULD BEGIN TO WEAKEN BUT COULD LINGER
UNTIL AROUND MIDNIGHT.

NS
Special weather statement, Jul 4, 4:45 PM EDT, 9 minutes before
NCZ015-016-017-042145-

SPECIAL WEATHER STATEMENT RADAR SUMMARY AND SHORT TERM FORECAST
NATIONAL WEATHER SERVICE WILMINGTON NC
445 PM EDT SUN JUL 4 1993

...STRONG THUNDERSTORMS ARE DEVELOPING ACROSS SOUTHEASTERN NORTH
CAROLINA...

AT 425 PM...SCATTERED SHOWERS AND STRONG THUNDERSTORMS WERE SOUTH OF
A LINE FROM JUST SOUTH OF GREENVILLE TO JUST WEST OF FAYETTEVILLE.  THE
STRONGEST THUNDERSTORMS WERE JUST NORTH OF NEW BERN...JUST WEST OF
FAYETTEVILLE AND JUST OFF WRIGHTSVILLE BEACH.

REPORTS OF VERY HEAVY RAIN AND FREQUENT DEADLY LIGHTNING HAVE BEEN
RECEIVED SO IF THREATENING WEATHER APPROACHES...SEEK SAFE SHELTER.
STRONG GUSTY WINDS AND SMALL HAIL CAN ALSO ACCOMPANY ANY THUNDERSTORMS.
MARINERS BOATING ALONG THE COASTAL WATERS OR PAMLICO SOUND SHOULD SEEK
SAFE HARBOR IF THREATENING WEATHER APPROACHES.

THE RAIN WAS MOVING SOUTHEAST AT AROUND 5 MILES AN HOUR.
SHOWERS AND STRONG THUNDERSTORMS WILL CONTINUE OVER SOUTHEASTERN
NORTH CAROLINA THROUGH THIS EVENING SO PERSONS SHOULD PLAN ACCORDINGLY
BEFORE GOING TO FIREWORKS DISPLAYS.

ONCE THE SUN SETS THE STORMS SHOULD BEGIN TO WEAKEN BUT COULD LINGER
UNTIL AROUND MIDNIGHT.

NS

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 4, 7:19 PM EDTSevere Thunderstorm WarningILMNew Hanover56 min

Nearby

Severe Thunderstorm Warnings in North Carolina, 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.