Alert archive / Alabama / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 187, NWS Birmingham, AL
NWS Birmingham, AL issued this severe thunderstorm warning at Mar 25, 1997, 8:18 PM CST for St. Clair County, Alabama. It was in force for 62 min. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Mar 25, 1997, 8:18 PM CST (02:18 UTC)
- Expired
- Mar 25, 1997, 9:20 PM CST
- In force
- 62 min
- Issued by
- NWS Birmingham, AL
- Area
- Whole counties
County St. Clair County, AL
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Mar 25, 8:22 PM CST | Hail 0.75 | Springville, AL |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
The nearest sounding before it
Birmingham, AL (KBMX), launched 00:00Z, 2.3 hours before the alert went out and 74 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
- 495 J/kg
- Mixed-layer CIN
- -13 J/kg
- Mixed-layer LCL
- 1273 m above ground
- 0-6 km bulk shear
- 50 kt
- 0-1 km storm-relative helicity
- 49 m²/s²
- 0-3 km storm-relative helicity
- 107 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 1.2
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KBHM 260218 RRA SVRBHM ALC115-260320- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE BIRMINGHAM AL 818 PM CST TUE MAR 25 1997 THE NATIONAL WEATHER SERVICE IN BIRMINGHAM AL HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 920 PM CST FOR PEOPLE IN THE FOLLOWING LOCATION... IN CENTRAL ALABAMA ...ST. CLAIR AT 815 PM CST...A SEVERE THUNDERSTORM WAS INDICATED BY WEATHER RADAR 10 MILES WEST OF MARGARET MOVING NORTHEAST AT 35 MPH. SOME LOCATIONS IN THE PATH OF THIS STORM ARE... MARGARET AROUND 831 PM CST SPRINGVILLE AROUND 839 PM CST ST. CLAIR SPRINGS AROUND 843 PM CST 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 |
|---|---|---|---|---|
| Mar 25, 6:20 PM CST | Severe Thunderstorm Warning | BMX | Colbert | 25 min |
| Mar 25, 6:42 PM CST | Severe Thunderstorm Warning | BMX | Fayette, Lamar | 48 min |
| Mar 25, 6:54 PM CST | Tornado Warning | BMX | Fayette | 31 min |
| Mar 25, 7:33 PM CST | Severe Thunderstorm Warning | BMX | Jefferson | 62 min |
| Mar 25, 7:49 PM CST | Tornado Warning | BMX | Jefferson | 46 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.