Alert archive / Alabama / Severe Thunderstorm Warnings in 1992

Severe Thunderstorm Warning 91, NWS Mobile, AL

August 9, 1992Monroe County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at Aug 9, 1992, 7:23 PM CDT for Monroe County, Alabama. It was in force for 37 min.

The area

The counties it named.

The facts

Issued: Aug 9, 1992, 7:23 PM CDT (00:23 UTC)
Expired: Aug 9, 1992, 8:00 PM CDT
In force: 37 min
Issued by: NWS Mobile, AL
Area: Whole counties

County Monroe County, AL

The nearest sounding before it

Centreville/Bibb, AL (KCKL), launched 00:00Z, 0.4 hours before the alert went out and 149 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 2443 J/kg
Mixed-layer CIN: -10 J/kg
Mixed-layer LCL: 1321 m above ground
0-6 km bulk shear: 5 kt
0-1 km storm-relative helicity: 19 m²/s²
0-3 km storm-relative helicity: 27 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 100024
SVRMOB
ALC099-100100-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
723 PM CDT SUN AUG 9 1992
 
THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  800 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS......
 
IN SOUTHWEST ALABAMA
 
   ...MONROE COUNTY
 
AT 720 PM THE MOBILE RADAR INDICATED A SEVERE THUNDERSTORM 3 MILES SOUTH
OF MONROEVILLE DRIFTING SOUTH AT 5 MPH.
 
THE THUNDERSTORM WILL AFFECT THE AREA BETWEEN MONROEVILLE AND FRISCO
CITY.
 
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 9, 4:39 PM CDT, 2 hours 44 minutes before

FLZ001-002-062230-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY ...CORRECTED FOR ISSUE TIME
NATIONAL WEATHER SERVICE PENSACOLA FL
435 PM CDT SUN AUG 9 1992

AT 430 PM CDT...LARGE STRONG THUNDERSTORMS WERE SCATTERED ALONG THE
GULF AND IN THE PENSACOLA VICINITY.

THE LARGER THUNDERSTORMS MAY PRODUCE SMALL HAIL WITH A CERTAINTY OF
GUSTY WINDS AND FREQUENT LIGHTNING PLUS HEAVY RAIN.

STREET FLOODING IS LIKELY AND MOTORISTS SHOULD DRIVE WITH CAUTIO2N.

Local storm report, Aug 9, 4:43 PM CDT, 2 hours 40 minutes before

STORM REPORT
NATIONAL WEATHER SERVICE MOBILE AL
440 PM CDT SUN AUG 9 1992

TIME             EVENT
418 PM           MOBILE SHERIFFS OFFICE REPORTED POWER LINES BLOWN DOWN
                 ALONG US HIGHWAY 90 JUST WEST OF ST. ELMO.   PUBLIC
                 REPORTS FROM ST. ELMO INDICATED VERY STRONG WINDS IN
                 THAT CITY AROUND 415 PM.

                                                            <

Special weather statement, Aug 9, 5:02 PM CDT, 2 hours 21 minutes before

ALZ013-015-016-MSZ014-013-092300-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
501 PM CDT SUN AUG 9 1992

...THE SEVERE THUNDERSTORM WARNING FOR THE SOUTHERN HALF OF MOBILE
COUNTY EXPIRED AT 445 PM...

THE MOBILE RADAR INDICATED AT 455 PM SEVERAL STRONG THUNDERSTORMS ALONG
THE COASTAL AREA FROM SOUTHERN BALDWIN COUNTY ALABAMA TO HARRISON COUNTY
IN MISSISSIPPI.  THE STORMS WERE MOVING VERY LITTLE.

FURTHER INLAND...OTHER THUNDERSTORMS...NOT AS STRONG...WERE DEVELOPING
IN AN ISOLATED...RANDOM PATTERN.

THESE THUNDERSTORMS ARE EXPECTED TO PRODUCE STRONG GUSTY
WINDS...DANGEROUS LIGHTNING...HEAVY RAINFALL AND POSSIBLE HAIL AS THEY
CONTINUE FOR THE NEXT FEW HOURS.

RESIDENTS ARE REMINDED TO PLAY IT SAFE WITH LIGHTNING AND GO INDOORS IF
A STORM DEVELOPS NEAR YOU.

HAIL A QUARTER INCH IN DIAMETER WAS REPORTED ABOUT 5 MILES EAST OF THE
MOBILE AIRPORT AT 340 PM AND STRONG WINDS WERE REPORTED NEAR THAT AREA
ABOUT THE SAME TIME.

Special weather statement, Aug 9, 5:36 PM CDT, 1 hour 47 minutes before

FLZ001-002-062330-

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

AT 530 PM CDT...SCATTERED STRONG THUNDERSTORMS WERE OCCURRING ALONG THE
COAST FROM PENSACOLA TO GULFPORT MISSISSIPPI...OVER SOUTHWEST ALABAMA
...AND A SMALL PORTION OF THE FLORIDA PANHANDLE ALONG THE ALABAMA
BORDER.

THE STRONGEST THUNDERSTORMS WERE LOCATED IN THE NORTHERN END OF
ESCAMBIA AND SANTA ROSA COUNTIES OF NORTHWEST FLORIDA...AND IN THE
NORTH END OF BALDWIN COUNTY ALABAMA.

THESE LARGER AND STRONGER STORMS ARE PRODUCING VERY HEAVY RAIN FOR A
SHORT PERIOD...GUSTY WINDS...FREQUENT LIGHTNING...PLUS THE POSSIBILITY
OF SMALL HAIL.

MOVEMENTS WERE SOUTHWARD AROUND 10 MPH.

Local storm report, Aug 9, 6:13 PM CDT, 1 hour 10 minutes before

STORM REPORT
NATIONAL WEATHER SERVICE MOBILE AL
605 PM CDT SUN AUG 9 1992

TIME             EVENT
507 PM           DAUPHIN ISLAND SEA LAB REPORTED A WIND GUST TO 56
                 KNOTS/64 MPH/ ON THE EAST END OF DAUPHIN ISLAND.
                 LOTS OF MARBLE SIZE HAIL.

                 DAUPHIN ISLAND PD REPORTED HAIL UP TO THE SIZE OF
                 QUARTERS.

                 THE U. S. COAST GUARD LAUNCHED A RESCUE VESSEL AND
          p       AIDED TWO BOATS IN DISTRESS.  BOTH REACHED PORT SAFELY
                 WITH NO INJURIES.

                 A SPECIAL MARINE WARNING WAS IN EFFECT AT THE TIME.

Local storm report, Aug 9, 6:16 PM CDT, 1 hour 7 minutes before

STORM REPORT
NATIONAL WEATHER SERVICE MOBILE AL
605 PM CDT SUN AUG 9 1992

TIME             EVENT
507 PM           DAUPHIN ISLAND SEA LAB REPORTED A WIND GUST TO 56
                 KNOTS/64 MPH/ ON THE EAST END OF DAUPHIN ISLAND.
                 LOTS OF MARBLE SIZE HAIL.

                 DAUPHIN ISLAND PD REPORTED HAIL UP TO THE SIZE OF
                 QUARTERS.

                 THE U. S. COAST GUARD LAUNCHED A RESCUE VESSEL AND
      |           AIDED TWO BOATS IN DISTRESS.  BOTH REACHED PORT SAFELY
                 WITH NO INJURIES.

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 10, 3:43 PM CDT	Severe Thunderstorm Warning	MOB	Baldwin	62 min
Aug 10, 4:10 PM CDT	Severe Thunderstorm Warning	MOB	Dallas	65 min
Aug 10, 6:01 PM CDT	Severe Thunderstorm Warning	MOB	Chambers	59 min

Nearby

Severe Thunderstorm Warnings in Alabama, 1992 Every 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; the sounding from the Mesonet's radiosonde archive.