Alert archive / Alabama / Flash Flood Warnings in 1991
Flash Flood Warning 7, NWS Birmingham, AL
NWS Birmingham, AL issued this flash flood warning at Feb 19, 1991, 3:30 AM CST for Lawrence County, Limestone County, Morgan County, Alabama. It was in force for 3 hr.
The area
The counties it named.
The facts
- Issued
- Feb 19, 1991, 3:30 AM CST (09:30 UTC)
- Expired
- Feb 19, 1991, 6:30 AM CST
- In force
- 3 hr
- Issued by
- NWS Birmingham, AL
- Area
- Whole counties
Counties Lawrence County, AL, Limestone County, AL, Morgan County, AL
The nearest sounding before it
Nashville Metro, TN (KBNA), launched 00:00Z, 9.5 hours before the alert went out and 175 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 773 m above ground
- 0-6 km bulk shear
- 49 kt
- 0-1 km storm-relative helicity
- 146 m²/s²
- 0-3 km storm-relative helicity
- 59 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 190931 FFWHSV ALC033-077-079-083-103-191230- BULLETIN - EBS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE HUNTSVILLE AL 330 AM CST TUE FEB 19 1991 THE NATIONAL WEATHER SERVICE IN HUNTSVILLE HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 630 AM CST IN NORTH ALABAMA ...COLBERT COUNTY...LAUDERDALE COUNTY...LAWRENCE COUNTY ...LIMESTONE COUNTY...MORGAN COUNTY THE FLASH FLOOD WARNING FOR FRANKLIN AND MADISON COUNTIES OF NORTH ALABAMA HAVE EXPIRED AS OF 330 AM CST. AT 325 AM CST HUNTSVILLE RADAR SHOWED PATCHY LIGHT RAIN OVER THE TENNESSEE VALLEY REGION OF NORTH ALABAMA. THUNDERSHOWERS AND SHOWERS WERE LOCATED IN LIMESTONE...LAWRENCE AND COLBERT COUNTIES AS WELL. MOVEMENT WAS NORTHEAST AT AROUND 35 MPH. ADDITIONAL FLOODING HAS BEEN REPORTED SINCE MIDNIGHT IN LAUDERDALE... COLBERT...LAWRENCE...LIMESTONE AND MORGAN COUNTIES OF NORTH ALABAMA. SINCE THE GROUND IS ALREADY SATURATED...OTHER FLASH FLOOD WARNINGS MAY BE REQUIRED LATER THIS MORNING. THE NATIONAL WEATHER SERVICE CONTINUES THE FLASH FLOOD WATCH FOR THE NORTHERN THIRD OF ALABAMA TODAY. 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...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 | 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 | Colbert, Franklin, Lawrence | 6 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.