Alert archive / Alabama / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 147, NWS Birmingham, AL
NWS Birmingham, AL issued this severe thunderstorm warning at Feb 28, 1997, 9:09 AM CST for Tallapoosa County, Alabama. It was in force for 36 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Feb 28, 1997, 9:09 AM CST (15:09 UTC)
- Expired
- Feb 28, 1997, 9:45 AM CST
- In force
- 36 min
- Issued by
- NWS Birmingham, AL
- Area
- Whole counties
County Tallapoosa County, AL
The radar
The Maxwell AFB radar (KMXX), 36 km from the middle of the area, began a volume at 15:10 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 12:00Z, 3.2 hours before the alert went out and 98 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
- 133 J/kg
- Mixed-layer CIN
- -43 J/kg
- Mixed-layer LCL
- 508 m above ground
- 0-6 km bulk shear
- 55 kt
- 0-1 km storm-relative helicity
- 286 m²/s²
- 0-3 km storm-relative helicity
- 334 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.1
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KBHM 281511 RRA SVRBHM ALC123-281545- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE BIRMINGHAM AL 909 AM CST FRI FEB 28 1997 THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 945 AM CST FOR PEOPLE IN THE FOLLOWING LOCATION... IN EAST CENTRAL ALABAMA ...TALLAPOOSA COUNTY THE SEVERE THUNDERSTORM WARNING FOR TALLAPOOSA HAS BEEN EXTENDED. AT 909 A SEVERE THUNDERSTORM EXTENDED OVER NORTHERN TALLAPOOSA COUNTY NORTHEAST OF ALEXANDER CITY. THE STORM WAS MOVING EAST AT 20 MPH AND WILL CONTINUE ACROSS NORTHERN TALLAPOOSA COUNTY DURING THE NEXT 30 MINUTES. SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55 MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DON'T DRIVE INTO AREAS WHERE WATER COVERS THE 4ROAD.
The office that day
Everything else NWS Birmingham, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 28, 7:51 AM CST | Severe Thunderstorm Warning | BMX | Coosa, Talladega | 54 min |
| Feb 28, 8:14 AM CST | Tornado Warning | BMX | Clay | 46 min |
| Feb 28, 8:19 AM CST | Flash Flood Warning | BMX | Bibb | 3 hr |
| Feb 28, 8:32 AM CST | Severe Thunderstorm Warning | BMX | Tallapoosa | 43 min |
| Feb 28, 8:41 AM CST | Severe Thunderstorm Warning | BMX | Coosa | 34 min |
| Feb 28, 8:53 AM CST | Tornado Warning | BMX | Clay | 37 min |
| Feb 28, 9:13 AM CST | Flash Flood Warning | BMX | Clay, Cleburne, Randolph | 3 hr |
| Feb 28, 9:13 AM CST | Flash Flood Warning | BMX | Calhoun, Cherokee, Etowah | 3 hr |
| Feb 28, 9:13 AM CST | Severe Thunderstorm Warning | BMX | Randolph | 47 min |
| Feb 28, 9:28 AM CST | Severe Thunderstorm Warning | BMX | Chambers | 47 min |
Nearby
Severe Thunderstorm Warnings in Alabama, 1997Every severe thunderstorm 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.