Alert archive / Alabama / Severe Thunderstorm Warnings in 1991
Severe Thunderstorm Warning 64, NWS Mobile, AL
NWS Mobile, AL issued this severe thunderstorm warning at May 6, 1991, 6:47 AM CDT for Baldwin County, Alabama. It was in force for 58 min.
The area
The counties it named.
The facts
- Issued
- May 6, 1991, 6:47 AM CDT (11:47 UTC)
- Expired
- May 6, 1991, 7:45 AM CDT
- In force
- 58 min
- Issued by
- NWS Mobile, AL
- Area
- Whole counties
County Baldwin County, AL
The nearest sounding before it
Slidell Radar S, LA (KSIL), launched 00:00Z, 11.8 hours before the alert went out and 192 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
- 1927 J/kg
- Mixed-layer CIN
- -3 J/kg
- Mixed-layer LCL
- 884 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 15 m²/s²
- 0-3 km storm-relative helicity
- 55 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 061149 SVRMOB ALC003-061245- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM AND SPECIAL MARINE WARNING NATIONAL WEATHER SERVICE MOBILE AL 647 AM CDT MON MAY 6 1991 THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A SEVERE THUNDERSTORM AND SPECIAL MARINE WARNING EFFECTIVE UNTIL 745 AM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN SOUTHWEST ALABAMA ...SOUTHERN BALDWIN COUNTY AT 645 AM THE MOBILE RADAR SHOWED A CLUSTER OF SEVERE THUNDERSTORMS OVER LOWER MOBILE BAY MOVING TOWARD THE EAST AT 30 MPH. THE THUNDERSTORMS WILL AFFECT THE AREA SOUTH OF INTERSTATE HIGHWAY 10. LARGE HAIL IS INDICATED IN THESE THUNDERSTORMS. MARINE INTERESTS IN THE COASTAL WATERS AROUND THE FORT MORGAN PENINSULA SHOULD SEEK SAFE HARBOR IMMEDIATELY. 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, May 6, 3:27 AM CDT, 3 hours 20 minutes before
ALZ013-016-MSZ013-060930- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MOBILE AL 325 AM CDT MON MAY 6 1991 ...SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR PORTIONS OF SOUTHEAST MISSISSIPPI AND SOUTHWEST ALABAMA... THE MOBILE RADAR AT 320 AM INDICATED THAT THE LINE OF THUNDERSTORMS ACROSS SOUTHEAST MISSISSIPPI TO NEAR NEW ORLEANS HAD WEAKENED. HOWEVER...NEW THUNDERSTORMS WERE DEVELOPING TO THE EAST OF THE LINE OVER JACKSON AND GEORGE COUNTIES OF MISSISSIPPI AND WASHINGTON...MOBILE AND BALDWIN COUNTIES IN ALABAMA. FOR THE NEXT TWO HOURS THESE COUNTIES CAN EXPECT STRONG GUSTY WINDS... DANGEROUS LIGHTNING...HEAVY DOWNPOURS...AND POSSIBLY SOME HAIL AS THE THUNDERSTORMS CONTINUES AND MOVE EAST AT 30 MPH.
Special weather statement, May 6, 4:34 AM CDT, 2 hours 13 minutes before
FLZ001-002-003-004-MSZALL-LAZALL-ALZALL-061030- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE PENSACOLA FL 435 AM CDT MON MAY 6 1991 ...STRONG THUNDERSTORMS WERE MOVING INTO THE WEST PART OF THE FLORIDA PANHANDLE... STRONG THUNDERSTORMS WERE OVER THE WEST PART OF THE FLORIDA PANHANDLE ...SOUTHWEST ALABAMA...AND THE ADJOINING COASTAL WATERS. THE STRONGER THUNDERSTORMS WERE MOVING INTO THE COASTAL AREAS OF ESCAMBIA COUNTY...AROUND THE PENSACOLA NAVAL AIR STATION AND WEST OF PENSACOLA...AND IN ALABAMA BETWEEN BAYOU LA BATRE AND MOBILE...AND AROUND AND EAST OF CITRONELLE. THE THUNDESTORMS WERE MOVING EAST-NORTHEAST 30 MILES AN HOUR. THE THUNDERSTORMS ARE CAPABLE OF PRODUCING PERIODS OF HEAVY DOWNPOURS ...FREQUENT LIGHTNING...GUSTY WINDS AROUND 40 MILES AN HOUR...AND POSSIBLE SMALL HAIL. PERSONS SHOULD TAKE ANY NECESSARY PRECAUTIONS FOR THESE CONDITIONS.
Special weather statement, May 6, 4:47 AM CDT, 2 hours before
FLZ001>004-061030- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PENSACOLA FL 445 AM CDT MON MAY 6 1991 ...STRONG THUNDERSTORMS MOVING INTO THE WEST PART OF THE FLORIDA PANHANDLE... STRONG THUNDERSTORMS WERE OVER SOUTHWEST ALABAMA AND MOVING INTO THE COASTAL AREA AND COASTAL WATERS OF ESCAMBIA COUNTY FLORIDA. SOME OF THE STRONGER THUNDERSTORMS WERE MOVING INTO THE PENSACOLA NAVAL AIR STATION AREA AND AROUND THE METROPOLITAN PENSACOLA AREA. THE THUNDERSTORMS WERE MOVING EAST-NORTHEAST AT 30 MILES AN HOUR. THE THUNDERSTORMS WILL BE MOVING INTO THE WEST PART OF THE FLORIDA PANHANDLE DURING THE NEXT HOUR...AND ARE CAPABLE OF PRODUCING PERIODS OF HEAVY DOWNPOURS...FREQUENT LIGHTNING...GUSTY WINDS AROUND 40 MILES AN HOUR...AND POSSIBLE SMALL HAIL...AND FOR MARINE INTERESTS THE ADDITIONAL ROUGH SEAS. PERSONS SHOULD TAKE ANY NECESSARY PRECAUTIONS FOR THESE CONDITIONS AS THE THUNDERSTORMS CONTINUE TO DEVELOP AND MOVE THROUGH THE AREA.
Local storm report, May 6, 5:37 AM CDT, 1 hour 10 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE MOBILE AL
536 AM CDT MON MAY 6 1991
TIME EVENT
525 AM CDT FOLEY PD IN BALDWIN COUNTY REPORTED DIME TO QUARTER
SIZE HAIL 3 MILES WEST OF FOLEY.Special weather statement, May 6, 5:39 AM CDT, 1 hour 8 minutes before
FLZ001-002-003-004-MSZALL-LAZALL-ALZALL-061030- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE PENSACOLA FL 535 AM CDT MON MAY 6 1991 ...STRONG THUNDERSTORMS WERE OVER THE WEST PART OF THE FLORIDA PANHANDLE... STRONG THUNDERSTORMS WERE OVER THE WEST PART OF THE FLORIDA PANHANDLE ...SOUTHWEST ALABAMA...AND THE ADJOINING COASTAL WATERS. SOME OF THE STRONGER THUNDERSTORMS WERE FROM AROUND THE PENSACOLA AREA TO MOBILE BAY...BETWEEN PENSACOLA AND MOLINO...FROM AROUND MOBILE TO 50 MILES NORTHEAST OF MOBILE. THE THUNDESTORMS WERE MOVING EAST-NORTHEAST 30 MILES AN HOUR. THE THUNDERSTORMS ARE CAPABLE OF PRODUCING PERIODS OF HEAVY DOWNPOURS ...FREQUENT LIGHTNING...GUSTY WIN DS AROUND 45 MILES AN HOUR...AND SMALL HAIL...AND FOR MARINE INTERESTS THE ADDITIONAL ROUGH SEAS. PERSONS SHOULD TAKE ANY NECESSARY PRECAUTIONS FOR THESE CONDITIONS.
Special weather statement, May 6, 6:38 AM CDT, 9 minutes before
FLZ001-002-003-004-MSZALL-LAZALL-ALZALL-061230- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE PENSACOLA FL 635 AM CDT MON MAY 6 1991 ...SEVERE THUNDERSTORM WATCH IN EFFECT FOR NORTHWEST FLORIDA UNTIL 11 AM CDT... ...STRONG THUNDERSTORMS WERE OVER THE WEST PART OF THE FLORIDA PANHANDLE... STRONG THUNDERSTORMS WERE OVER THE WEST PART OF THE FLORIDA PANHANDLE ...SOUTHWEST ALABAMA...AND THE ADJOINING COASTAL WATERS. THE MAIN CONCENTRATION WAS OVER THE WESTERN 75 MILES OF NORTHWEST FLORIDA. SOME OF THE STRONGER THUNDERSTORMS WERE ALONG THE IMMEDIATE COAST AND COASTAL WATERS FROM MOBILE BAY TO FORT WALTON...FROM AROUND FAIRHOPE TO AROUND ATMORE...AND AROUND DE FUNIAK SPRINGS. THE THUNDESTORMS WERE MOVING EAST-NORTHEAST 30 MILES AN HOUR. THE THUNDERSTORMS ARE CAPABLE OF PRODUCING HEAVY DOWNPOURS...FREQUENT LIGHTNING...GUSTY WINDS AROUND 45 MILES AN HOUR...POSSIBLE HAIL... AND FOR MARINE INTERESTS THE ADDITIONAL wROUGH SEAS. PERSONS SHOULD TAKE ANY NECESSARY PRECAUTIONS FOR THESE CONDITIONS.
The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 5, 7:10 PM CDT | Severe Thunderstorm Warning | MOB | Mobile | 65 min |
| May 6, 4:38 AM CDT | Severe Thunderstorm Warning | MOB | Baldwin | 52 min |
| May 6, 5:20 AM CDT | Severe Thunderstorm Warning | MOB | Conecuh, Escambia | 40 min |
| May 6, 5:42 AM CDT | Severe Thunderstorm Warning | MOB | Baldwin | 63 min |
Nearby
Severe Thunderstorm Warnings in Alabama, 1991Every severe thunderstorm warning in 1991
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.