Alert archive / Alabama / Flash Flood Warnings in 1991
Flash Flood Warning 1, NWS Mobile, AL
NWS Mobile, AL issued this flash flood warning at Mar 1, 1991, 10:33 PM CST for Geneva County, Houston County, Alabama. It was in force for 4 hr.
The area
The counties it named.
The facts
- Issued
- Mar 1, 1991, 10:33 PM CST (04:33 UTC)
- Expired
- Mar 2, 1991, 2:30 AM CST
- In force
- 4 hr
- Issued by
- NWS Mobile, AL
- Area
- Whole counties
Counties Geneva County, AL, Houston County, AL
The nearest sounding before it
Apalachicola Mun, FL (KAQQ), launched 00:00Z, 4.6 hours before the alert went out and 164 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
- 590 J/kg
- Mixed-layer CIN
- -89 J/kg
- Mixed-layer LCL
- 823 m above ground
- 0-6 km bulk shear
- 56 kt
- 0-1 km storm-relative helicity
- 319 m²/s²
- 0-3 km storm-relative helicity
- 390 m²/s²
- Significant tornado parameter
- 0.9
- Supercell composite
- 10.3
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
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, Mar 1, 6:08 PM CST, 4 hours 25 minutes before
FLZ001>004-020100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PENSACOLA FL 605 PM CST FRI MAR 1 1991 ...A TORNADO WATCH NUMBER 20 IS IN EFFECT UNTIL 1000 PM CST FOR BAY AND WASHINGTON COUNTIES IN FLORIDA...AND THE COASTAL WATERS OF BAY COUNTY.. THE TORNADO WATCH NUMBER 18 FOR THE WEST PART OF THE FLORIDA PANHANDLE EXPIRED AT 600 PM. THUNDERSTORMS...SOME WITH HEAVY RAIN...CONTINUE OVER THE WEST PART OF THE PANHANDLE. THE THUNDERSTORMS WERE MOVING INTO THE COASTLINE FROM PENSACOLA TO DESTIN. A LARGE AREA OF RAIN WAS OVER MOST OF THE FLORIDA PANHANDLE...SOUTH ALABAMA...SOUTHEAST MISSISSIPPI...AND THE ADJOINING COASTAL WATERS. THE THUNDERSTORMS ARE CAPABLE OF PRODUCING HEAVY DOWNPOrURS...FREQUENT LIGHTNING...VARIABLE GUSTY WINDS...AND POSSIBLE HAIL. FLOODING OF STREETS AND OTHER POOR DRAINAGE AREAS MAY BE EXPECTED... ESPECIALLY IN THE MORE FLOOD PRONE AREAS.
Special weather statement, Mar 1, 6:33 PM CST, 4 hours before
FLZ001>004-020135- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE PENSACOLA FL 635 PM CST FRI MAR 1 1991 ...A TORNADO WATCH NUMBER 20 IS IN EFFECT UNTIL 1100 PM CST FOR BAY AND WASHINGTON COUNTIES IN FLORIDA...AND THE COASTAL WATERS OF BAY COUNTY.. ...AT 630 PM CST...A CLUSTER OF THUNDERSTORMS WITH VERY HEAVY RAIN WAS ALONG THE COAST JUST SOUTH OF DESTIN WHILE ANOTHER CLUSTER WAS JUST SOUTH AND SOUTHEAST OF PENSACOLA. A LA7RGE PATCH OF RAIN AND THUNDERSTORMS COVERED MUCH OF SOUTH ALABAMA ...THE FLORIDA PANHANDLE AND THE ADJACENT COASTAL WATERS FROM DESTIN WEST TO LOUISIANA. MOVEMENT WAS NORTHEAST AT 30 MILES AN HOUR.
Special weather statement, Mar 1, 7:52 PM CST, 2 hours 41 minutes before
FLZ001>004-020235- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE PENSACOLA FL 735 PM CST FRI MAR 1 1991 ...TORNADO WATCH NUMBER 20 IS IN EFFECT UNTIL 1100 PM CST FOR BAY AND WASHINGTON COUNTIES IN FLORIDA...AND THE COASTAL WATERS OF BAY COUNTY.. AT 728 PM CST...A BAND OF THUNDERSTORMS WITH VERY HEAVY RAIN EXTENDED FROM JUST SOUTH OF MILTON SOUTHWEST BETWEEN PENSACOLA AND NAVARRE... AND INTO THE GULF 80 MILES SOUTHWEST OF PENSACOLA. ELSEWHERE...A LARGE AREA OF RAIN MIXED WITH SCATTERED THUNDERSTORMS COVERED MOST OF THE FLORIDA PANHANDLE...SOUTH ALABAMA...SOUTHEAST MISSISSIPPI...AND THE ADJOINING GULF. THE THUNDERSTORMS WERE MAINLY ALONG THE COAST AND COASTAL WATERS FROM PENSACOLA TO FREEPORT. THE THUNDERSTORMS ARE CAPABLE OF PRODUCING PERIODS OF HEAVY DOWNPOURS ...FREQUENT LIGHTNING...VARIABLE GUSTY WINDS...POSSIBLE...AND FLOODING OF STREETS AND OTHER POOR DRAINAGE AREAS. PERSONS SHOULD TAKE ANY NECESSARY PRECAUTIONS FOR THESE CONDITIONS.
Special weather statement, Mar 1, 8:39 PM CST, 1 hour 54 minutes before
FLZ001>004-020335- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE PENSACOLA FL 835 PM CST FRI MAR 1 1991 ...TORNADO WATCH NUMBER 20 IS IN EFFECT UNTIL 1100 PM CST FOR BAY AND WASHINGTON COUNTIES IN FLORIDA...AND THE COASTAL WATERS OF BAY COUNTY.. AT 827 PM CST...A LARGE AREA OF RAIN MIXED WITH SCATTERED THUNDERSTORMS ...SOME WITH VERY HEAVY RAIN...WAS OVER MOST OF THE FLORIDA PANHANDLE ...SOUTH ALABAMA...AND THE ADJOINING GULF. THE THUNDERSTORMS WITH THE HEAVIER RAINS WERE ALONG THE COAST AND COASTAL WATERS BETWEEN PENSACOLA AND FORT WALTON...AND BETWEEN DESTIN AND PANAMA CITY. THE RAIN AREA WAS SPREADING SLOWLY EAST...WITH THE INDIVIDUAL THUNDER- STORMS MOVING NORTHEAST AT 35 MILES AN HOUR. THE THUNDERSTORMS ARE CAPABLE OF PRODUCING PERIODS OF HEAVY DOWNPOURS ...FREQUENT LIGHTNING...VARIABLE GUSTY WINDS...AND POSSIBLE HAIL. SOME FLOODING OF STREETS AND OTHER POOR DRAINAGE AREAS MAY BE EXPECTED ...ESPECIALLY IN THE MORE FLOOD PRONE AREAS. PERSONS SHOULD TAKE ANY NECESSARY PRECAUTIONS FOR THESE CONDITIONS. WATER NEAR CREEKS AND LOW AREAS WILL BE DIFFICULT TO SEE AT NIGHT.
Special weather statement, Mar 1, 9:05 PM CST, 1 hour 28 minutes before
FLZ001>004-020400- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PENSACOLA FL 900 PM CST FRI MAR 1 1991 THUNDERSTORMS WITH VERY HEAVY RAIN EXTENDED FROM AROUND THE FORT WALTON AREA SOUTHWEST TO 75 MILES SOUTHWEST OF PENSACOLA...AND OTHERS MOVING INLAND OVER BAY COUNTY BETWEEN FREEPORT AND PANAMA CITY AND EXTENDED INTO SOUTHEAST WASHINGTON COUNTY. SOME OF THE STRONGER THUNDERSTORMS WERE IN SOUTHEAST WASHINGTON COUNTY ...AND OVER THE IMMEDIATE COASTAL WATERS WEST OF PANAMA CITY...AND OVER THE COASTAL WATERS SOUTHWEST AND SOUTH OF FORT WALTON AND DESTIN. THE THUNDERSTORMS WERE MOVING NORTHEAST AT 35 MILES AN HOUR. THE THUNDERSTORMS ARE CAPABLE OF PRODUCING PERIODS OF HEAVY DOWNPOURS ...FREQUENT LIGHTNING...VARIABLE GUSTY WINDS...POSSIBLE HAIL...AND FLOODING OF STREETS AND OTHER POOR DRAINAGE AREAS. PERSONS SHOULD TAKE ANY NECESSARY PRECAUTIONS FOR THESE CONDITIONS.
Special weather statement, Mar 1, 9:37 PM CST, 56 minutes before
FLZ001>004-020435- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE PENSACOLA FL 935 PM CST FRI MAR 1 1991 ...TORNADO WATCH NUMBER 20 IS IN EFFECT UNTIL 1100 PM CST FOR BAY AND WASHINGTON COUNTIES IN FLORIDA...AND THE COASTAL WATERS OF BAY COUNTY.. AT 926 PM CST...A LARGE AREA OF RAIN MIXED WITH SCATTERED THUNDERSTORMS ...SOME WITH VERY HEAVY RAIN...WAS OVER MOST OF THE FLORIDA PANHANDLE ...SOUTH ALABAMA...AND THE ADJOINING GULF. THE THUNDERSTORMS WITH THE HEAVIER RAINS WERE ALONG THE COAST AND COASTAL WATERS FROM MOBILE TO PENSACOLA...OVER SOUTH OKALOOSA COUNTY... AND BETWEEN PANAMA CITY AND MARIANNA. THE RAIN AREA WAS SPREADING SLOWLY EAST...WITH THE INDIVIDUAL THUNDER- STORMS MOVING NORTHEAST AT 35 MILES AN HOUR. THE THUNDERSTORMS ARE CAPABLE OF PRODUCING PERIODS OF HEAVY DOWNPOURS ...FREQUENT LIGHTNING...VARIABLE GUSTY WINDS...AND POSSIBLE HAIL. SOME FLOODING OF STREETS AND OTHER POOR DRAINAGE AREAS MAY BE E7XPECTED ...ESPECIALLY IN THE MORE FLOOD PRONE AREAS.
Nearby
Flash Flood Warnings in Alabama, 1991Every flash flood 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.