Alert archive / Alabama / Flash Flood Warnings in 1997
Flash Flood Warning 30, NWS Birmingham, AL
NWS Birmingham, AL issued this flash flood warning at Jul 21, 1997, 7:43 PM CDT for Greene County, Hale County, Tuscaloosa County, Alabama. It was in force for 4 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jul 21, 1997, 7:43 PM CDT (00:43 UTC)
- Expired
- Jul 21, 1997, 11:40 PM CDT
- In force
- 4 hr
- Issued by
- NWS Birmingham, AL
- Area
- Whole counties
Counties Greene County, AL, Hale County, AL, Tuscaloosa County, AL
The radar
The Birmingham radar (KBMX), 90 km from the middle of the area, began a volume at 00:45 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Birmingham, AL (KBMX), launched 00:00Z, 0.7 hours before the alert went out and 89 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
- 810 J/kg
- Mixed-layer CIN
- -17 J/kg
- Mixed-layer LCL
- 487 m above ground
- 0-6 km bulk shear
- 12 kt
- 0-1 km storm-relative helicity
- 62 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 KBHM 220043 FFWBHM ALC063-065-125-220440- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE BIRMINGHAM AL 743 PM CDT MON JUL 21 1997 THE NATIONAL WEATHER SERVICE IN BIRMINGHAM AL HAS EXTENDED THE FLASH FLOOD WARNING UNTIL 1140 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN WEST CENTRAL ALABAMA ...GREENE COUNTY ...HALE COUNTY ...TUSCALOOSA COUNTY AT 740 PM CDT...WEATHER RADARS CONTINUED TO SHOW A LARGE AREA OF RAIN...MIXED WITH A FEW THUNDERSTORMS...ACROSS PARTS OF SOUTHERN TUSCALOOSA COUNTY AND THE NORTH PARTS OF HALE AND GREENE COUNTIES. THE RAIN WAS ROTATING AROUND A LOW PRESSURE SYSTEM...THE REMNANTS OF HURRICANE DANNY...LOCATED JUST NORTH OF EUTAW IN GREENE COUNTY. THE AREA OF LOW PRESSURE SHOWED LITTLE MOVEMENT. AS A RESULT...HEAVY RAIN CONTINUE TO FALL ACROSS PARTS OF NORTHERN GREENE AND HALE COUNTIES. BANDS OF HEAVY RAINFALL WERE MOVING ACROSS PARTS OF TUSCALOOSA COUNTY...INCLUDING THE CITY OF TUSCALOOSA...COMPOUNDING THE ALREADY SATURATED CONDITIONS. ADDITIONAL RAINFALL AMOUNTS OF TWO TO FOUR INCHES ARE POSSIBLE ACROSS PARTS OF GREENE...HALE AND TUSCALOOSA COUNTIES THROUGH 1130 PM. DURING HEAVY RAINS... KEEP CHILDREN AWAY FROM STORM DRAINS... WATER CATCHMENTS... AND WATERWAYS. SHALLOW... GENTLY FLOWING WATER CAN BECOME A RAGING TORRENT IN A MATTER OF MINUTES. DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE WATER COVERS THE ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY AND THE ROAD BENEATH MAY NOT BE INTACT. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY. IT ONLY TAKES A FOOT OR TWO OF FLOWING WATER TO WASH MOST CARS AWAY. REMEMBER... MOST DEATHS IN FLASH FLOODING OCCUR IN AUTOMOBILES. THE WARNING EXTENDS THE PREVIOUS WARNING.
The office that day
Everything else NWS Birmingham, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 21, 11:41 PM CDT | Flash Flood Warning | BMX | Greene, Hale, Tuscaloosa | 3 hr |
| Jul 22, 12:54 AM CDT | Flash Flood Warning | BMX | Pickens | 4 hr |
| Jul 22, 2:51 PM CDT | Tornado Warning | BMX | Lee | 34 min |
| Jul 22, 2:56 PM CDT | Tornado Warning | BMX | Chambers | 29 min |
| Jul 22, 3:33 PM CDT | Flash Flood Warning | BMX | Greene, Marengo | 3 hr |
| Jul 22, 3:41 PM CDT | Tornado Warning | BMX | Russell | 34 min |
| Jul 22, 5:18 PM CDT | Flash Flood Warning | BMX | Bullock | 2 hr |
Nearby
Flash Flood Warnings in Alabama, 1997Every flash flood warning in 1997
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; radar from the NEXRAD Level II archive.