Alert archive / Mississippi / Severe Thunderstorm Warnings in 1992

Severe Thunderstorm Warning 95, NWS Mobile, AL

August 10, 1992Harrison County, Mississippi

NWS Mobile, AL issued this severe thunderstorm warning at Aug 10, 1992, 6:30 PM CDT for Harrison County, Mississippi. It was in force for 36 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Aug 10, 1992, 6:30 PM CDT (23:30 UTC)
Expired
Aug 10, 1992, 7:06 PM CDT
In force
36 min
Issued by
NWS Mobile, AL
Area
Whole counties

County Harrison County, MS

What was reported inside it

TimeReportWhereRemark
Aug 10, 6:40 PM CDTHail 1Harrison, MS

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 11.5 hours before the alert went out and 62 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, Slidell Radar S, LA at 12:00Z on 1992-08-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1618 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, Slidell Radar S, LA at 12:00Z on 1992-08-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -24 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
1618 J/kg
Mixed-layer CIN
-39 J/kg
Mixed-layer LCL
887 m above ground
0-6 km bulk shear
5 kt
0-1 km storm-relative helicity
-24 m²/s²
0-3 km storm-relative helicity
-9 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 KMOB 102330
SVRMOB
MSC047-110015-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
630 PM CDT MON AUG 10 1992
 
THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  715 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS......
 
IN SOUTHEAST MISSISSIPPI
 
   ...HARRISON COUNTY
 
 
 
AT 630 PM CDT RADAR INDICATED A SEVERE THUNDERSTORM OVER HARRISON COUNTY
JUST NORTH OF GULFPORT. THE STORM WAS MOVING TOWARD THE WEST AT 10 MPH.
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND 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 ROADS QUICKLY SO
DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.

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, Aug 10, 4:49 PM CDT, 1 hour 41 minutes before
FLZ001-002-102230

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE PENSACOLA FL
440 PM CDT SUN AUG 9 1992

AT 430 PM CDT...SEVERAL THUNDERSTORMS INDICATING VERY HEAVY RAIN WERE
OCCURRING OVER NORTHWEST FLORIDA AND SOUTHWEST ALABAMA. IN THE FLORIDA
PANHANDLE THESE STORMS WERE LOCATED NEAR PENSACOLA AND ON THE COAST
NEAR PORT ST JOE.

IN SOUTHWEST ALABAMA...STRONG THUNDERSTORMS BRACKETED MOBILE.

HEAVY RAIN...GUSTY WINDS...FREQdUENT LIGHTNING...AND POSSIBLY SMALL
HAIL WILL ACCOMPANY THESE STORMS. THE HEAVY RAIN WILL CAUSE FLOODING OF
STREETS AND LOW AREAS.

MOVEMENTS WERE SLOWLY SOUTHWEST.
Special weather statement, Aug 10, 4:52 PM CDT, 1 hour 38 minutes before
ALZ016-102245-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
450 PM CDT MON AUG 10 1992

THUNDERSTORMS OVER BALDWIN COUNTY ALABAMA HAVE WEAKENED AND THE SEVERE
THUNDERSTORM WARNING EXPIRED AT 445 PM CDT.

AT 450 PM CDT RADAR SHOWED CLUSTERS OF STRONG THUNDERSTORMS OVER BALDWIN
AND MOBILE COUNTIES IN SOUTHWEST ALABAMA.  THE STROGEST STORMS WERE OVER
MOBILE COUNTY.  THESE STORMS WILL PRODUCE STRONG GUSTY WINDS...DANGEROUS
LIGHTNINhG...AND SMALL HAIL.  THEY WERE MOVING TOWARDS THE SOUTHWEST AT
10 MPH.
Special weather statement, Aug 10, 4:52 PM CDT, 1 hour 38 minutes before
FLZ001-002-102230

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY  ...DATE TIME CORRECTION...
NATIONAL WEATHER SERVICE PENSACOLA FL
440 PM CDT MON AUG 10 1992

AT 430 PM CDT...SEVERAL THUNDERSTORMS INDICATING VERY HEAVY RAIN WERE
OCCURRING OVER NORTHWEST FLORIDA AND SOUTHWEST ALABAMA. IN THE FLORIDA
PANHANDLE THESE STORMS WERE LOCATED NEAR PENSACOLA AND ON THE COAST
NEAR PORT ST JOE.

IN SOUTHWEST ALABAMA...STRONG THUNDERSTORMS BRACKETED MOBILE.
l
HEAVY RAIN...GUSTY WINDS...FREQUENT LIGHTNING...AND POSSIBLY SMALL
HAIL WILL ACCOMPANY THESE STORMS. THE HEAVY RAIN WILL CAUSE FLOODING OF
STREETS AND LOW AREAS.

MOVEMENTS WERE SLOWLY SOUTHWEST.

Nearby

Severe Thunderstorm Warnings in Mississippi, 1992Every severe thunderstorm warning in 1992

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.