Alert archive / Mississippi / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 97, NWS Mobile, AL
NWS Mobile, AL issued this severe thunderstorm warning at Apr 22, 1990, 4:11 PM CDT for Harrison County, Mississippi. It was in force for 49 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
- Apr 22, 1990, 4:11 PM CDT (21:11 UTC)
- Expired
- Apr 22, 1990, 5:00 PM CDT
- In force
- 49 min
- Issued by
- NWS Mobile, AL
- Area
- Whole counties
County Harrison County, MS
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Apr 22, 4:22 PM CDT | Hail 1.75 | Harrison, 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, 9.2 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.
- Mixed-layer CAPE
- 371 J/kg
- Mixed-layer CIN
- -56 J/kg
- Mixed-layer LCL
- 715 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 34 m²/s²
- 0-3 km storm-relative helicity
- 21 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KMOB 222111 SVRMOB MSC047-222200- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MOBILE AL 411 PM CDT SUN APR 22 1990 THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 500 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN SOUTHEAST MISSISSIPPI ...HARRISON COUNTY AT 407 PM THE MOBILE RADAR INDICATED A SEVERE THUNDERSTORM OVER BACK BAY JUST NORTH OF BILOXI. THE STORM WAS MOVING TOWARD THE SOUTH SLOWLY. LARGE HAIL IS INDICATED WITH THIS THUNDERSTORM. 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, Apr 22, 1:31 PM CDT, 2 hours 40 minutes before
FLZ001-002-150740- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE PENSACOLA FL 125 PM CDT SUN APR 22 1990 ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 8 PM CDT FOR PORTIONS OF SOUTHEAST MISSISSIPPI...SOUTHWEST ALABAMA...A SMALL PORTION OF NORTHWEST FLORIDA...AND THE ADJACENT COASTAL WATERS. THE NORTHWEST FLORIDA COUNTIES IN THIS WATCH AREA ARE ESCAMBIA...SANTA ROSA AND OKALOOSA. AT 125 PM CDT...NUMEROUS THUDERSTORMS...SOME VERY STRONG AND WITH HEAVY RAIN...STRETCHED FROM NEAR LAUREL MISSISSIPPI SOUTHEAST ACROSS NORTH MOBILE AND BALDWIN COUNTIES OF ALABAMA...THEN OVER THE WESTERNMOST COUNTIES OF NORTHWEST FLORIDA. STRONGEST STORMS WERE OVER NORTH SANTA ROSA COUNTY OF FLORIDA AND JUST NORTH OF MOBILE. MOVEMENTS WERE TOWARD THE SOUTHEAST AND SOUTH NEAR 15 MILES AN HOUR.
Local storm report, Apr 22, 2:07 PM CDT, 2 hours 4 minutes before
ATTN SELS
STORM REPORT
NATIONAL WEATHER SERVICE MOBILE AL
205 PM CDT SUN APR 22 1990
TIME CO/STATE EVENT
200 PM MOBILE/AL 1 INCH HAIL COVERING THE GROUND IN
PRICHARD. IT HAS BEEN HAILING FOR AT
LEAST THE LAST 15 MINUTES. REPORTED BY
PRICHARD P.D.Special weather statement, Apr 22, 2:32 PM CDT, 1 hour 39 minutes before
ALZ016-2221000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MOBILE AL 230 PM CDT SUN APR 22 1990 ...SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 800 PM... ...STRONG THUNDERSTORMS RUMBLING THROUGH CENTRAL MOBILE COUNTY... AT 225 PM...A CLUSTER OF VERY STRONG THUNDERSTORMS WAS SINKING SLOWLY SOUTH THROUGH CENTRAL MOBILE COUNTY ALABAMA. THE STRONGEST THUNDER- STORMS WERE LOCATED FROM NEAR DOWNTOWN MOBILE WEST TO TILLMAN'S CORNER. THE STORMS WERE STRONG ENOUGH TO COVER THE GROUND WITH MARBLE SIZE AND BIGGER HAIL AS THEY MOVED THROUGH SARALAND. PEOPLE IN SOUTH MOBILE COUNTY SHOULD MONITOR THE WEATHER UNTIL THESE STORMS MOVE THROUGH.
Special weather statement, Apr 22, 2:33 PM CDT, 1 hour 38 minutes before
FLZ001-002-150740- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE PENSACOLA FL 225 PM CDT SUN APR 22 1990 ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 8 PM CDT FOR PORTIONS OF SOUTHEAST MISSISSIPPI...SOUTHWEST ALABAMA...A SMALL PORTION OF NORTHWEST FLORIDA...AND THE ADJACENT COASTAL WATERS. THE NORTHWEST FLORIDA COUNTIES IN THIS WATCH AREA ARE ESCAMBIA...SANTA ROSA AND OKALOOSA. AT 225 PM CDT...NUMEROUS THUDERSTORMS...SOME VERY STRONG AND WITH HEAVY RAIN...STRETCHED FROM NEAR LAUREL MISSISSIPPI SOUTHEAST ACROSS MOBILE MOBILE AND WASHINGTON COUNTIES OF ALABAMA...THEN OVER NORTHWEST FLORIDA. STRONGEST STORMS OVER NORTHWEST FLORIDA STRETCHED FROM NORTH ESCAMBIA COUNTY SOUTHEAST ACROSS MILTON TO NEAR FORT WALTON. MOVEMENTS WERE TOWARD THE SOUTHEAST AND SOUTH NEAR 15 MILES AN HOUR.
Special weather statement, Apr 22, 3:34 PM CDT, 37 minutes before
FLZ001-002-150740- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE PENSACOLA FL 235 PM CDT SUN APR 22 1990 ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 8 PM CDT AND INCLUDES THE FOLLOWING COUNTIES IN NORTHWEST FLORIDA. ESCAMBIA...SANTA ROSA... AND OKALOOSA. AT 325 PM CDT...NUMEROUS THUDERSTORMS...SOME VERY STRONG AND WITH HEAVY RAIN...WERE OVER SOUTHEAST MISSISSIPPI...MAINLY THE SOUTHWEST PORTION OF ALABAMA...AND MAINLY THE THREE WESTERNMOST COUNTIES OF NORTHWEST FLORIDA. STRONGEST THUNDERSTORM WAS OVER JACKSON COUNTY MISSISSIPPI NORTHWEST OF PASCAGOULA. STRONGEST STORMS OVER FLORIDA WERE OVER THE SOUTH PORTIONS OF ESCAMBIA AND SANTA ROSA COUNTIES. MOVEMENTS W ERE TOWARD THE SOUTHEAST AND SOUTH NEAR 15 MILES AN HOUR.
Local storm report, Apr 22, 4:01 PM CDT, 10 minutes before
ATTN SELS
STORM REPORT
NATIONAL WEATHER SERVICE MOBILE AL
403 PM CDT SUN APR 22 1990
TIME CO/STATE EVENT
350 PM JACKSON/MS GOLF BALL SIZED HAIL JUST EAST OF
P LATIMER IN JACKSON COUNTY. REPORTED
BY JACKSON S.O.The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 22, 3:23 PM CDT | Severe Thunderstorm Warning | MOB | Jackson | 52 min |
Nearby
Severe Thunderstorm Warnings in Mississippi, 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.