Alert archive / Alabama / Flash Flood Warnings in 1991
Flash Flood Warning 13, NWS Birmingham, AL
NWS Birmingham, AL issued this flash flood warning at Feb 19, 1991, 10:35 AM CST for Colbert County, Franklin County, Lawrence County, Alabama. It was in force for 6 hr.
The area
The counties it named.
The facts
- Issued
- Feb 19, 1991, 10:35 AM CST (16:35 UTC)
- Expired
- Feb 19, 1991, 4:30 PM CST
- In force
- 6 hr
- Issued by
- NWS Birmingham, AL
- Area
- Whole counties
Counties Colbert County, AL, Franklin County, AL, Lawrence County, AL
The nearest sounding before it
Centreville/Bibb, AL (KCKL), launched 12:00Z, 4.6 hours before the alert went out and 189 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
- 4 J/kg
- Mixed-layer CIN
- -510 J/kg
- Mixed-layer LCL
- 641 m above ground
- 0-6 km bulk shear
- 64 kt
- 0-1 km storm-relative helicity
- 419 m²/s²
- 0-3 km storm-relative helicity
- 395 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 KHSV 191637 FFWHSV ALC033-059-077-079-083-089-103-192230- BULLETIN - EBS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE HUNTSVILLE AL 1035 AM CST TUE FEB 19 1991 THE NATIONAL WEATHER SERVICE IN HUNTSVILLE HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 430 PM CST IN NORTH ALABAMA ...COLBERT COUNTY...FRANKLIN COUNTY...LAUDERDALE COUNTY ...LAWRENCE COUNTY...LIMESTONE COUNTY...MADISON COUNTY...MORGAN COU AT 1020 THIS MORNING HUNTSVILLE RADAR INDICATED MODERATE TO HEAVY RAINS COVERING PORTIONS OF ALL THE WARNED COUNTIES. THIS PRECIPITATION IS PART OF A LARGE AREA OF RAIN AND THUNDERSTORMS THAT EXTENDS WEST INTO ARKANSAS AND SOUTH TO THE GULF. THE PRECIPITATION WAS MOVING EAST NORTHEAST AT 35 MILES AN HOUR. FLOODING IS ALREADY OCCURING IN ALL THE WARNED COUNTIES AND NUMEROUS ROADS HAVE BEEN CLOSED. AS THE HEAVY RAINFALL CONTINUES MORE FLOODING IS LIKELY. RAINFALL AMOUNTS OF 4 TO 7 INCHES HAVE OCCURED OVER MUCH OF THE WARNED AREA DURING THE PAST 36 HOURS AND ADDITIONAL AMOUNTS AMOUNTS OF 3 TO 5 INCHES OR MORE IS POSSIBLE. PERSONS IN THE TENNESSEE VALLEY SHOULD REMAIN ALERT TO WEATHER CONDITIONS AND MONITOR WEATHER BROADCAST FOR LATER STATEMENTS OR WARNINGS. A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IS IMMINENT. MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS BRIDGES...DIPS...OR LOW SPOTS IF WATER COVERS THE ROADWAY. NEVER TRY TO CROSS A FLOWING STREAM..G.EVEN A SMALL ONE...ON FOOT. TO ESCAPE RISING WATER MOVE UP TO HIGHER GROUND.
The office that day
Everything else NWS Birmingham, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 18, 9:25 PM CST | Flash Flood Warning | BMX | Colbert, Lauderdale, Lawrence, Limestone | 6 hr |
| Feb 18, 9:25 PM CST | Flash Flood Warning | BMX | Franklin | 6 hr |
| Feb 18, 9:25 PM CST | Flash Flood Warning | BMX | Madison, Morgan | 6 hr |
| Feb 19, 3:30 AM CST | Flash Flood Warning | BMX | Lawrence, Limestone, Morgan | 3 hr |
| Feb 19, 3:30 AM CST | Flash Flood Warning | BMX | Colbert, Lauderdale | 3 hr |
| Feb 19, 4:56 AM CST | Flash Flood Warning | BMX | Madison | 3 hr |
| Feb 19, 6:29 AM CST | Flash Flood Warning | BMX | Colbert, Lauderdale | 4 hr |
| Feb 19, 7:21 AM CST | Flash Flood Warning | BMX | Lawrence, Limestone, Morgan | 3 hr |
| Feb 19, 7:21 AM CST | Flash Flood Warning | BMX | Madison | 3 hr |
| Feb 19, 10:35 AM CST | Flash Flood Warning | BMX | Limestone, Madison, Morgan | 6 hr |
| Feb 19, 10:35 AM CST | Flash Flood Warning | BMX | Lauderdale | 6 hr |
| Feb 19, 12:05 PM CST | Severe Thunderstorm Warning | BMX | Jefferson | 40 min |
| Feb 19, 4:24 PM CST | Flash Flood Warning | BMX | Limestone, Madison, Morgan | 4 hr |
| Feb 19, 4:24 PM CST | Flash Flood Warning | BMX | DeKalb, Jackson, Marshall | 4 hr |
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.