Alert archive / Alabama / Flash Flood Warnings in 1991
Flash Flood Warning 39, NWS Birmingham, AL
NWS Birmingham, AL issued this flash flood warning at Dec 2, 1991, 12:03 AM CST for 5 counties in Alabama. It was in force for 7 hr.
The area
The counties it named.
The facts
- Issued
- Dec 2, 1991, 12:03 AM CST (06:03 UTC)
- Expired
- Dec 2, 1991, 7:00 AM CST
- In force
- 7 hr
- Issued by
- NWS Birmingham, AL
- Area
- Whole counties
Counties DeKalb County, AL, Jackson County, AL, Madison County, AL, Marshall County, AL, Morgan County, AL
The nearest sounding before it
Nashville Metro, TN (KBNA), launched 00:00Z, 6.1 hours before the alert went out and 176 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
- 505 m above ground
- 0-6 km bulk shear
- 85 kt
- 0-1 km storm-relative helicity
- 162 m²/s²
- 0-3 km storm-relative helicity
- 108 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 020605 FFWHSV ALC033-049-059-071-077-079-083-089-095-103-021300- BULLETIN - EBS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE HUNTSVILLE AL 1203 AM CST MON DEC 2 1991 THE NATIONAL WEATHER SERVICE IN HUNTSVILLE HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 700 AM CST IN NORTH ALABAMA ...COLBERT COUNTY...DEKALB COUNTY...FRANKLIN COUNTY...JACKSON COUNT ...LAUDERDALE COUNTY...LAWRENCE COUNTY...LIMESTONE COUNTY...MADISON ...MARSHALL COUNTY...MORGAN COUNTY AT MIDNIGHT HUNTSVILLE RADAR INDICATED A LARGE AREA OF MODERATE TO HEAVY RAINS AND A FEW THUNDERSTORMS OVER MOST OF NORTH ALABAMA. THIS AREA OF PRECIPITATION EXTENDED SOUTHWEST INTO MISSISSIPPI. ALL THE PRECIPITATION WAS MOVING NORTHEAST AT 40 MILES AN HOUR AND WILL CONTINUE TO MOVE THROUGH THE WARNED AREA FOR THE NEXT SEVERAL HOURS. FLOODING IS ALREADY OCCURRING IN THE WARNED COUNTIES AND THE ADDED RAINFALL WILL COMPOUND THE PROBLEMS ALREADY EXISTING IN THESE COUNTIES. RESIDENTS OF THE WARNED COUNTIES SHOULD PAY CLOSE ATTENTION TO WEATHER CONDITIONS FOR THE NEXT SEVERAL HOURS AND BE PREPARED TO MOVE A SAFE AREA IF NECESSARY. BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE DANGERS OF FLOODS AND FLASH FLOODS. IF FLASH FLOODING IS OBSERVED...ACT QUICKLY. MOVE UP TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING. DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY. MOVE TO HIGHER GROUND.
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, Dec 1, 8:26 PM CST, 3 hours 37 minutes before
ALZ004-020430-
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
827 PM CST SUN DEC 1 1991
...FLASH FLOOD WATCH IS IN EFFECT FOR LAMAR...FAYETTE...MARION...
WALKER...AND WINSTON COUNTIES FOR TONIGHT...
AT 825 PM CST NATIONAL WEATHER SERVICE RADAR INDICATED HEAVY RAIN
OCCURRING OVER MARION AND NORTHERN LAMAR COUNTIES. ADDITIONAL HEAVY
RAIN WILL BE MOVING OUT OF MISSSISSIPPI INTO THESE COUNTIES AS WELL AS
WINSTON COUNTY DURING THE NEXT SEVERAL HOURS.
THE COUNTIES OF LAMAR...MARION...AND WINSTON HAVE RECEIVED AROUND
TWO INCHES OF RAIN SINCE EARLY THIS MORNING. WITH THE GROUND
SATURATED...ANY ADDITIONAL HEAVY RAIN WILL RUNOFF RAPIDLY SWELLING
STREAMS AND POSSIBLY FLOODING LOW PLACES ALONG SECONDARY ROADWAYS. IF
YOU ARE DRIVING IN THESE THREE COUNTIES DURING THE NEXT COUPLE OF
HOURS...USE EXTREME CAUTION AND DO NOT DRIVE INTO FLOODED AREAS WHERE
WATER COVERS THE ROAD TO AN UNKNOWN DEPTH.The office that day
Everything else NWS Birmingham, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 1, 7:52 PM CST | Flash Flood Warning | BMX | Colbert, Lauderdale, Lawrence | 4 hr |
| Dec 1, 7:52 PM CST | Flash Flood Warning | BMX | Franklin | 4 hr |
| Dec 1, 10:21 PM CST | Flash Flood Warning | BMX | Jackson, Madison | 4 hr |
| Dec 1, 10:21 PM CST | Flash Flood Warning | BMX | Limestone, Morgan | 4 hr |
| Dec 2, 12:03 AM CST | Flash Flood Warning | BMX | Colbert, Franklin, Lauderdale, Lawrence | 7 hr |
| Dec 2, 12:03 AM CST | Flash Flood Warning | BMX | Limestone | 7 hr |
| Dec 2, 6:46 AM CST | Flash Flood Warning | BMX | Colbert, Franklin, Lauderdale, Lawrence, Limestone, Morgan | 4 hr |
| Dec 2, 6:46 AM CST | Flash Flood Warning | BMX | Madison | 4 hr |
| Dec 2, 8:54 AM CST | Flash Flood Warning | BMX | Colbert, Lauderdale, Lawrence, Limestone | 4 hr |
| Dec 2, 8:54 AM CST | Flash Flood Warning | BMX | Jackson, Madison | 4 hr |
| Dec 2, 8:54 AM CST | Flash Flood Warning | BMX | Franklin | 4 hr |
| Dec 2, 8:54 AM CST | Flash Flood Warning | BMX | Morgan | 4 hr |
| Dec 2, 5:53 PM CST | Severe Thunderstorm Warning | BMX | Pickens | 52 min |
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.