Alert archive / Alabama / Flash Flood Warnings in 1987
Flash Flood Warning 6, NWS Mobile, AL
NWS Mobile, AL issued this flash flood warning at Aug 13, 1987, 6:10 AM CDT for Baldwin County, Mobile County, Alabama. It was in force for 3 hr.
The area
The counties it named.
The facts
- Issued
- Aug 13, 1987, 6:10 AM CDT (11:10 UTC)
- Expired
- Aug 13, 1987, 9:00 AM CDT
- In force
- 3 hr
- Issued by
- NWS Mobile, AL
- Area
- Whole counties
Counties Baldwin County, AL, Mobile County, AL
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
The nearest sounding before it
Boothville, LA (KBVE), launched 00:00Z, 11.2 hours before the alert went out and 203 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
- 697 J/kg
- Mixed-layer CIN
- -49 J/kg
- Mixed-layer LCL
- 747 m above ground
- 0-6 km bulk shear
- 13 kt
- 0-1 km storm-relative helicity
- 32 m²/s²
- 0-3 km storm-relative helicity
- 47 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 131110
FFWMOB
ALC003-097-131400-
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOBILE AL
610 AM CDT THU AUG 13 1987
THE NATIONAL WEATHER SERVICE HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE
UNTIL 900 PM CST FOR PERSONS IN THE FOLLOWING COUNTIES...
IN SOUTHWEST ALABAMA
...SOUTH MOBILE...SOUTH BALDWIN
HEAVY RAINFALL HAS OCCURRED ACROSS SOUTH MOBILE AND BALDWIN COUNTIES
OVERNIGHT AND UP TO TWO MORE INCHES IS POSSIBLE THIS MORNING.
SEVERAL ROADS AND A BRIDGE HAVE BEEN REPORTED UNDERWATER IN SOUTH
BALDWIN COUNTY. THESE CONDITIONS ARE ALSO LIKELY IN SOUTH MOBILE
COUNTY. MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES...DO NOT TRY
TO CROSS BRIDGES OR LOW SPOTS IF WATER COVERS THE ROADWAY.What forecasters said that day
The local office's own words before this flash flood 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 13, 2:44 AM CDT, 3 hours 26 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE PENSACOLA FL 240 AM CDT THU AUG 13 1987 ...A FLASH FLOOD WATCH IS IN EFFECT FOR THE WEST FLORIDA PANHANDLE THIS MORNING...HEAVY RAIN WAS OVER SOUTHERN ESCAMBIA AND SANTA ROSA COUNTIES. SOME MINOR FLOODING OF STREETS AND PARKING LOTS AND OTHER AREAS OF POOR DRAINAGE IS BEING REPORTED IN PENSACOLA AREA. MOTORIST ARE URGED TO SLOW DOWN IN HEAVY RAIN AND TO AVOID FLOODED STREETS. AT 235 AM CDT...A CLUSTER OF STRONG THUNDERSTORMS WAS OVER SOUTHERN BLADWIN COUNTY ALABAMA AND SOUTHERN ESCAMBIA AND SOUTHERN SANTA ROSA COUNTIES FLORIDA. THESE STORMS WERE PART OF A LARGE AREA OF SOLID RAIN AND THUNDERSTORMS THAT COVERED SOUTHEAST MISSISSIPPI...COASTAL ALABAMA AND THE WEST FLORIDA PANHANDLE. MOVEMENT OF THE STORMS WAS SLOWLY TO THE EAST.
Special weather statement, Aug 13, 3:37 AM CDT, 2 hours 33 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE PENSACOLA FL 340 AM CDT THU AUG 13 1987 ...A FLASH FLOOD WATCH IS IN EFFECT FOR THE WEST FLORIDA PANHANDLE THIS MORNING...HEAVY RAIN WAS OVER SOUTHERN ESCAMBIA AND SANTA ROSA COUNTIES. SOME FLOODING OF STREETS AND PARKING LOTS AND OTHER AREAS OF POOR DRAINAGE IS BEING REPORTED IN PENSACOLA AREA. MOTORIST ARE URGED TO SLOW DOWN IN HEAVY RAIN AND TO AVOID FLOODED STREETS. STAY TUNED TO YOUR LOCAL WEATHER INFORMATION STATION FOR OTHER STATE- MENTS AND/OR POSSIBLE WARNINGS. AT 335 AM CDT...A CLUSTER OF STRONG THUNDERSTORMS WAS OVER SOUTHERN BLADWIN COUNTY ALABAMA AND SOUTHERN ESCAMBIA AND SOUTHERN SANTA ROSA COUNTIES FLORIDA. THESE STORMS WERE PART OF A LARGE AREA OF SOLID RAIN AND THUNDERSTORMS THAT COVERED SOUTHEAST MISSISSIPPI...COASTAL ALABAMA AND THE WEST FLORIDA PANHANDLE. MOVEMENT OF THE STORMS WAS SLOWLY TO THE EAST.
The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 13, 8:50 AM CDT | Flash Flood Warning | MOB | Mobile | 3 hr |
Nearby
Flash Flood Warnings in Alabama, 1987Every flash flood warning in 1987
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.