Alert archive / Alabama / Flash Flood Warnings in 1987
Flash Flood Warning 10, NWS Mobile, AL
NWS Mobile, AL issued this flash flood warning at Aug 14, 1987, 4:03 AM CDT for Baldwin County, Alabama. It was in force for 3 hr.
The area
The counties it named.
The facts
- Issued
- Aug 14, 1987, 4:03 AM CDT (09:03 UTC)
- Expired
- Aug 14, 1987, 7:00 AM CDT
- In force
- 3 hr
- Issued by
- NWS Mobile, AL
- Area
- Whole counties
County Baldwin 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, 9.1 hours before the alert went out and 217 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
- 2472 J/kg
- Mixed-layer CIN
- -2 J/kg
- Mixed-layer LCL
- 680 m above ground
- 0-6 km bulk shear
- 12 kt
- 0-1 km storm-relative helicity
- 36 m²/s²
- 0-3 km storm-relative helicity
- 38 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 140904 FFWMOB ALC003-141200- BULLETIN - IMMEDIATE BROADCAST REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE MOBILE AL 403 AM CDT FRI AUG 14 1987 THE NATIONAL WEATHER SERVICE HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 700 AM CDT FOR PEOPLE IN THE FOLLOWING COUNTY OF SOUTHWEST ALABAMA...EXTREME SOUTHERN BALDWIN AT 400 AM THE NATIONAL WEATHER SERVICE RADAR AT MOBILE INDICATED VERY HEAVY RAINFALL INCREASING IN COVERAGE OVER EXTREME SOUTHERN BALDWIN COUNTY. ESTIMATES FROM RADAR AND SATELLITE INDICATE THAT BETWEEN TWO AND FOUR INCHES OF RAIN HAVE FALLEN NEAR GULF SHORES AND ON THE FORT MORGAN PENINSULA IN THE LAST TWO HOURS. GULF SHORES POLICE DEPARTMENT ALREADY REPORTS SIGNIFICANTw WATER ACROSS THE FORT MORGAN ROAD AND OTHER ROADS AROUND GULF SHORES. ADDITIONAL HEAVY RAINS ARE MOVING INTO THE AREA. DO NOT DRIVE INTO WATER OF UNKNOWN DEPTH.
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 14, 12:48 AM CDT, 3 hours 15 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE PENSACOLA FL 1235 AM CDT FRI AUG 14 1987 ...A FLASH FLOOD WATCH IS IN EFFECT FOR THE WEST FLORIDA PANHANDLE FOR TONIGHT... A BAND OF STRONG THUNDERSTORMS WAS MOVING INTO THE WEST PART OF THE FLORIDA PANHANDLE...AND A LARGE CLUSTER OF STRONG THUNDERSTORMS WAS MOVING INTO BAY COUNTY AROUND PANAMA CITY. AT 1230 AM CDT...A BAND OF STRONG THUNDERSTORMS WAS FROM MILTON ACROSS PENSACOLA AND INTO THE COASTAL WATERS SOUTH OF PERDIDO BAY...AND A LARGE CLUSTER OF STRONG THUNDERSTORMS WAS MOVING INTO THE COAST AROUND PANAMA CITY. OTHER THUNDERSTORMS...SOME WITH VERY HEAVY RAIN...WERE SCATTERED OVER THE FLORIDA PANHANDLE...SOUTHWEST ALABAMA...AND THE ADJOINING COASTAL WATERS. THE THUNDERSTORMS WERE MOVING EAST AT 25 MILES AN HOUR. THE STRONGER THUNDERSTORMS WILL PRODUCE PERIODS OF VERY HEAVY RAIN AND SOME BRIEF FLOODING OF STREETS AND LOW AREAS WHICH ARE ALREADY INUNDATED WITH PREVIOUS RAINS.
Special weather statement, Aug 14, 1:41 AM CDT, 2 hours 22 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE PENSACOLA FL 135 AM CDT FRI AUG 14 1987 ...A FLASH FLOOD WATCH IS IN EFFECT FOR THE WEST FLORIDA PANHANDLE FOR TONIGHT... STRONG THUNDERSTORMS WERE SCATTERED OVER THE WEST END OF THE FLORIDA PANHANDLE. AT 130 AM CDT...STRONG THUNDERSTORMS WITH VERY HEAVY RAIN WERE SCATTER- ED OVER THE SOUTH HALF OF ESCAMBIA AND SANTA ROSA COUNTIES AND THE IMMEDIATE COASTAL WATERS. THE MAIN CONCENTRATION WAS ALONG THE COAST FROM PERDIDO BAY TO NEAR NAVARRE. THE THUNDERSTORMS WERE MOVING EAST AT 25 MILES AN HOUR. OTHER THUNDERSTORMS...SOME WITH VERY HEAVY RAIN...AND PATCHES OF RAIN WERE SCATTERED OVER THE FLORIDA PANHANDLE...SOUTHWEST ALABAMA...AND THE ADJOINING COASTAL WATERS. THE STRONGER THUNDERSTORMS WILL PRODUCE PERIODS OF VERY HEAVY RAIN AND SOME BRIEF FLOODING OF STREETS AND LOW AREAS WHICH ARE ALREADY INUNDATED FROM PREVIOUS RAINS. PERSONS SHOULD AVOID FLOOD PRONE AREAS AND KEEP ABREAST OF WEATHER.
Special weather statement, Aug 14, 2:44 AM CDT, 1 hour 19 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE PENSACOLA FL 235 AM CDT FRI AUG 14 1987 ...A FLASH FLOOD WATCH IS IN EFFECT FOR THE WEST FLORIDA PANHANDLE FOR TONIGHT... STRONG THUNDERSTORMS WERE ALONG THE COAST OF THE WEST FLORIDA PAN- HANDLE. AT 230 AM CDT...STRONG THUNDERSTORMS WITH VERY HEAVY RAIN WERE OVER THE COASTAL SECTIONS OF THE FLORIDA PANHANDLE AND COASTAL ALABAMA FROM FORT MORGAN ACROSS THE PENSACOLA NAVAL AIR STATION TO NEAR FORT WALTON. THE STRONGER THUNDERSTORMS WERE AROUND THE PENSACOLA NAVAL AIR STATION AND OVER THE IMMEDIATE COASTLINE AND COASTAL WATERS FROM PERDIDO BAY TO NAVARRE. OTHER THUNDERSTORMS...SOME WITH VERY HEAVY RAIN...AND PATCHES OF RAIN WERE SCATTERED OVER THE FLORIDA PANHANDLE...SOUTHWEST ALABAMA...AND THE ADJOINING COASTAL WATERS. THE THUNDERSTORMS WERE MOVING EAST AT 20 MILES AN HOUR. THE STRONGER THUNDERSTORMS WILL PRODUCE PERIODS OF VERY HEAVY RAIN AND SOME FLOODING OFQ STREETS AND LOW AREAS WHICH ARE ALREADY SOAKED.
Special weather statement, Aug 14, 3:37 AM CDT, 26 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE PENSACOLA FL 335 AM CDT FRI AUG 14 1987 ...A FLASH FLOOD WATCH IS IN EFFECT FOR NORTHWEST FLORIDA TONIGHT... STRONG THUNDERSTORMS WERE ALONG THE COAST OF THE WEST FLORIDA PAN- HANDLE. AT 330 AM CDT...STRONG THUNDERSTORMS WITH VERY HEAVY RAIN WERE OVER THE COASTAL SECTIONS AND COASTAL WATERS FROM THE EAST SHORE OF MOBILE BAY ACROSS THE PENSACOLA NAVAL AIR STATION TO WEST OF FORT WALTON. THE STRONGER THUNDERSTORMS WERE FROM FOLEY AND GULF SHORES ALABAMA TO AROUND THE PENSACOLA NAVAL AIR STATION AND THE IMMEDIATE COASTAL WATER. OTHER THUNDERSTORMS...SOME WITH HEAVY RAIN...WERE SCATTERED ALONG THE COASTAL SECTIONS AND WATERS FROM PASCAGOULA TO APALACHICOLA. THE THUNDERSTORMS WERE MOVING EAST AT 20 MILES AN HOUR. THE STRONGER THUNDERSTORMS WILL PRODUCE PERIODS OF VERY HEAVY RAIN CAUSING FLOODING OF STREETS AND LOW AREAS. PERSONS SHOULD BE ALERT FOR RAPID RISING WATEQRS WHILE THE STORMS CONTINUE TO DEVELOP AND MOVE THROUGH THE AREA.
The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 13, 7:25 PM CDT | Flash Flood Warning | MOB | Conecuh, Escambia | 95 min |
| Aug 13, 8:55 PM CDT | Flash Flood Warning | MOB | Conecuh, Escambia | 65 min |
| Aug 14, 9:00 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.