Alert archive / Alabama / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 325, NWS Birmingham, AL
NWS Birmingham, AL issued this severe thunderstorm warning at May 9, 1997, 9:07 AM CDT for Walker County, Alabama. It was in force for 48 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
- May 9, 1997, 9:07 AM CDT (14:07 UTC)
- Expired
- May 9, 1997, 9:55 AM CDT
- In force
- 48 min
- Issued by
- NWS Birmingham, AL
- Area
- Whole counties
County Walker County, AL
The radar
The Birmingham radar (KBMX), 86 km from the middle of the area, began a volume at 14:07 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, 2.1 hours before the alert went out and 84 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
- 846 J/kg
- Mixed-layer CIN
- -14 J/kg
- Mixed-layer LCL
- 596 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 26 m²/s²
- 0-3 km storm-relative helicity
- 73 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 0.3
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KBHM 091408 RRA SVRBHM ALC127-091455- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE BIRMINGHAM AL 907 AM CDT FRI MAY 9 1997 THE NATIONAL WEATHER SERVICE IN BIRMINGHAM AL HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 955 AM CDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN CENTRAL ALABAMA ...WALKER COUNTY AT 906 AM CDT...WEATHER RADAR SHOWED SEVERE THUNDERSTORMS ACROSS CENTRAL WALKER COUNTY NEAR JASPER. THE STORMS WERE MOVING EAST-SOUTHEAST AT 30 MPH. THE STORMS SHOULD MOVE ACROSS PARRISH...CORDOVA...AND DORA BY 915 AM. SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 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 DONT DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.
The office that day
Everything else NWS Birmingham, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 9, 8:27 AM CDT | Severe Thunderstorm Warning | BMX | Pickens | 58 min |
| May 9, 8:54 AM CDT | Severe Thunderstorm Warning | BMX | Fayette | 46 min |
| May 9, 9:00 AM CDT | Severe Thunderstorm Warning | BMX | Tuscaloosa | 60 min |
| May 9, 9:29 AM CDT | Severe Thunderstorm Warning | BMX | Jefferson | 46 min |
| May 9, 10:17 AM CDT | Severe Thunderstorm Warning | BMX | Jefferson | 23 min |
| May 9, 10:52 AM CDT | Severe Thunderstorm Warning | BMX | Talladega | 48 min |
| May 9, 2:12 PM CDT | Severe Thunderstorm Warning | BMX | Coosa | 48 min |
| May 9, 2:52 PM CDT | Severe Thunderstorm Warning | BMX | Lee | 48 min |
| May 9, 3:39 PM CDT | Severe Thunderstorm Warning | BMX | Lee | 46 min |
| May 9, 4:08 PM CDT | Severe Thunderstorm Warning | BMX | Russell | 62 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.