Alert archive / Alabama / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 95, NWS Mobile, AL
NWS Mobile, AL issued this severe thunderstorm warning at Apr 22, 1990, 1:31 PM CDT for Mobile County, Alabama. It was in force for 59 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, 1:31 PM CDT (18:31 UTC)
- Expired
- Apr 22, 1990, 2:30 PM CDT
- In force
- 59 min
- Issued by
- NWS Mobile, AL
- Area
- Whole counties
County Mobile County, AL
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, 2:00 PM CDT | Hail 1 | Mobile, AL |
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, 6.5 hours before the alert went out and 152 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 221831 SVRMOB ALC097-221930- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MOBILE AL 131 PM CDT SUN APR 22 1990 THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 230 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN SOUTHWEST ALABAMA ...MOBILE COUNTY AT 125 PM CDT MOBILE RADAR SHOWED A CLUSTER OF SEVERE THUNDERSTORMS COVERING MUCH OF THE NORTH HALF OF MOBILE COUNTY MOVING TO THE SOUTHEAST AT 15 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, Apr 22, 12:00 PM CDT, 1 hour 31 minutes before
ALZ013-015-016-MSZ014-013-221900 SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MOBILE AL 1200 PM CDT SUN APR 22 1990 ...STRONG THUNDERSTORMS DEVELOPING OVER INTERIOR SOUTHWEST ALABAMA AND SOUTHEAST MISSISSIPPI... AT 1155 AM CDT MOBILE RADAR SHOWED SCATTERED THUNDERSTORMS OVER MUCH OF SOUTHWEST ALABAMA AND SOUTHEAST MISSISSIPPI...EXCEPT FOR THE COASTAL AREA. THUNDERSTORMS WERE MOVING TOWARD THE EAST SOUTHEAST AT 15 MPH. STRONGER THUND:ERSTORMS WILL CAUSE GUSTY WINDS...DANGEROUS LIGHTNING... BRIEF HEAVY RAINFALL AND POSSIBLY SOME SMALL HAIL. THE STRONGER STORMS WERE LOCATED NEAR BREWTON AND CALVERT IN SOUTHWEST ALABAMA AND MAINLY OVER GREENE AND PERRY COUNTIES IN MISSISSIPPI.
Special weather statement, Apr 22, 1:31 PM CDT, 0 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.
The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 22, 7:46 AM CDT | Severe Thunderstorm Warning | MOB | Covington | 74 min |
Nearby
Severe Thunderstorm Warnings in Alabama, 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.