Alert archive / Mississippi / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 33, NWS Mobile, AL

April 12, 1994George County, Jackson County, Mississippi

NWS Mobile, AL issued this severe thunderstorm warning at Apr 12, 1994, 6:56 PM CDT for George County, Jackson County, Mississippi. It was in force for 49 min.

The area

The counties it named.

The facts

Issued
Apr 12, 1994, 6:56 PM CDT (23:56 UTC)
Expired
Apr 12, 1994, 7:45 PM CDT
In force
49 min
Issued by
NWS Mobile, AL
Area
Whole counties

Counties George County, MS, Jackson County, MS

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 11.9 hours before the alert went out and 112 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 1994-04-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 970 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 1994-04-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 80 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
970 J/kg
Mixed-layer CIN
-2 J/kg
Mixed-layer LCL
527 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
80 m²/s²
0-3 km storm-relative helicity
169 m²/s²
Significant tornado parameter
0.3
Supercell composite
2.4

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMOB 122356
SVRMOB
MSC039-059-130045-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
656 PM CDT TUE APR 12 1994
 
THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  745 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN SOUTHEAST MISSISSIPPI
 
   ...GEORGE COUNTY...NORTHERN JACKSON COUNTY
 
AT 655 PM WEATHER RADAR INDICATED A SEVERE THUNDERSTORM IN THE NORTHWEST
CORNER OF JACKSON COUNTY NEAR VESTRY AND MOVING INTO THE SOUTHWEST
CORNER OF GEORGE COUNTY. THIS STORM IS MOVING TO THE EAST...NORTHEAST AT
30 MPH.
 
THIS IS A DANGEROUS STORM.  IF YOU ARE IN ITS PATH YOU SHOULD
PREPARE FOR DAMAGING WIND IN EXCESS OF 55 MPH...LARGE HAIL...AND
DEADLY LIGHTNING.  PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT STAY AWAY FROM WINDOWS.

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, Apr 12, 3:17 PM CDT, 3 hours 39 minutes before
MSZ077-080-122115-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
317 PM CDT TUE APR 12 1994

...STRONG THUNDERSTORM CLUSTER MOVING INTO SOUTHEAST MISSISSIPPI...

AT 315 PM THE MOBILE RADAR INDICATED A STRONG THUNDERSTORM CLUSTER
CENTERED ABOUT 15 MILES SOUTH-SOUTHWEST OF PICAYUNE MISSISSIPPI.  THE
STORMS WERE MOVING TOWARD THE NORTHEAST AT 25 MPH AND WILL MOVE ALONG
THE PEARL-RIVER AND HANCOCK COUNTY LINE DURING THE NEXT HOUR.
 :
RESIDENTS OF SOUTHERN PEARL-RIVER AND NORTHERN HANCOCK COUNTY CAN EXPECT
GUSTY WINDS...DANGEROUS LIGHTNING...TORRENTIAL RAINFALL AND POSSIBLY
SOME HAIL AS THESE THUNDERSTORMS PASS.
Special weather statement, Apr 12, 4:17 PM CDT, 2 hours 39 minutes before
ALZ052-053-055-056-059-061-062-063-064-MSZ075-076-077-078-079-080-
081-082-ALZ501-LAZ501-122315-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
418 PM CDT TUE APR 12 1994

...STRONG THUNDERSTORMS MOVING INTO NORTH PERRY COUNTY...NORTH HANCOCK
COUNTY AND SOUTH PEARL RIVER COUNTY OF SOUTHEAST MISSISSIPPI...

AT 415 PM MOBILE WEATHER RADAR SHOWED A VERY STRONG THUNDERSTORM OVER
NORTH FORREST COUNTY NEAR HATTIESBURG AND MOVING NORTHEAST INTO NORTH
PERRY COUNTY.  PERSONS IN OR NEAR THE TOWNS OF RUNNELSTOWN AND RICHTON
SHOULD EXPECT HEAVY RAINS...STRONG GUSTY WINDS AND DANGEROUS LIGHTNING
WITH THIS STORM WITHIN THE HOUR.

ANOTHER STRONG THUNDERSTORM WAS MOVING INTO NORTH HANCOCK AND SOUTH
PEARL RIVER COUNTIES NEAR PICAYUNE AND MCNEIL. THIS STORM WAS ALSO
MOVING TO THE NORTHEAST AT 15 MPH AND PRODUCING HEAVY RAINS AND
DANGEROUS LIGHTNING.

ALL RESIDENTS IN SOUTHEAST MISSISSIPPI SHOULD REMAIN ALERT FOR
THREATNING WEATHER CONDITIONS AND STAY TUNED TO YOUR NOAA WEATHER RADIO
AND LOCAL NEWS MEDIA FOR ANY FURTHER UPDATES OR WARNINGS.
Special weather statement, Apr 12, 5:15 PM CDT, 1 hour 41 minutes before
ALZ052-053-055-056-059-061-062-063-064-MSZ075-076-077-078-079-080-
081-082-ALZ501-LAZ501-130015-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
515 PM CDT TUE APR 12 1994

...STRONG THUNDERSTORMS MOVING ACROSS SOUTHEAST MISSISSIPPI...

AT 510 PM MOBILE WEATHER RADAR SHOWED A LINE OF STRONG THUNDERSTORMS
THAT EXTENDED FROM NEAR POPLARVILLE IN PEARL RIVER COUNTY...NORTHEAST
ACROSS FOREST COUNTY AND INTO CENTRAL AND NORTH PERRY COUNTY TO NEAR
RICHTON. THIS LINE WAS MOVING TO THE EAST...NORTHEAST AT ABOUT 20 MPH
AND WILL BE MOVING INTO GREENE AND STONE COUNTIES WITHIN THE HOUR.

ANOTHER STRONG STORM WAS LOCATED IN CENTRAL AND EAST HANCOCK COUNTY
JUST EAST OF PICAYNE AND WAS REPORTED TO HAVE CAUSED CONSIDERABLE WIND
DAMAGE TO SEVERAL TRAILERS IN LEE TOWN LOCATED IN THE NORTHWEST PART OF
HANCOCK COUNTY.  THIS STORM WAS MOVING INTO WEST HARRISON COUNTY AND
WILL EFFECT THE COMMUNITIES OF SAUCIER AND LYMAN WITHIN THE HOUR.

REMEMBER...THESE STORMS WERE MOVING TO THE EAST...NORTHEAST AT ABOUT 20
MPH AND WERE PRODUCING VERY HEAVY RAINS...STRONG GUSTY WINDS AND
FREQUENT DANGEROUS LIGHTNING. ALL RESIDENTS IN SOUTHEAST MISSISSIPPI
SHOULD CONTINUE TO REMAIN ALERT FOR THREATNING WEATHER CONDITIONS AND
STAY TUNED TO NOAA WEATHER RADIO AND YOUR LOCAL NEWS MEDIA FOR ANY
FURTHER UPDATES OR WARNINGS.

&
Special weather statement, Apr 12, 6:02 PM CDT, 54 minutes before
ALZ052-053-055-056-059-061-062-063-064-MSZ075-076-077-078-079-080-
081-082-ALZ501-LAZ501-130100-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
603 PM CDT TUE APR 12 1994

...STRONG THUDERSTORMS CONTINUE TO MOVE ACROSS SOUTHEAST MISSISSIPPI...

AT 600 PM WEATHER RADAR SHOWED A STRONG THUNDERSTORM OVER NORTHWEST
HARRISON COUNTY NEAR SAUCIER AND NORTH OF LYMAN.  THIS STORM HAS A
HISTORY OF PRODUCING DAMAGING WINDS...HEAVY RAINS AND FREQUENT
DANGEROUS LIGHTNING.  THIS STORM WAS MOVING TO THE EAST...NORTHEAST AT
20 MPH AND WILL CONTINUE TO MOVE ACROSS NORTH HARRISON COUNTY AND WILL
BE MOVING INTO SOUTH STONE COUNTY WITHIN THE HOUR.

ELSEWHERE...A LINE OF STRONG STORMS EXTENDED FROM NEAR NEELY IN CENTRAL
GREENE COUNTY JUST WEST OF LEAKESVILLE...NORTHEAST ACROSS NORTH GREENE
COUNTY AND INTO WAYNE COUNTY OF SOUTHEAST MISSISSIPPI. THIS LINE IS
MOVING TO THE EAST...NORTHEAST AS WELL AND WILL BE MOVING INTO
WASHINGTON COUNTY OF SOUTHWEST ALABAMA WITHIN THE HOUR.

ALL RESIDENTS IN SOUTHEAST MISSISSIPPI AND SOUTHWEST ALABAMA SHOULD
REMAIN ALERT FOR THREATNING WEATHER CONDITIONS THROUGH OUT THE NIGHT AND
STAY TUNED TO NOAA WEATHER RADIO AND YOUR LOCAL NEWS MEDIA FOR ANY*
FURTHER UPDATES OR WARNINGS.

The office that day

Everything else NWS Mobile, AL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 12, 6:28 PM CDTSevere Thunderstorm WarningMOBHarrison, Stone47 min

Nearby

Severe Thunderstorm Warnings in Mississippi, 1994Every severe thunderstorm warning in 1994

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.