Alert archive / Alabama / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 402, NWS Birmingham, AL
NWS Birmingham, AL issued this severe thunderstorm warning at Jul 4, 1997, 4:11 PM CDT for Madison County, Alabama. It was in force for 64 min. 2 reports 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
- Jul 4, 1997, 4:11 PM CDT (21:11 UTC)
- Expired
- Jul 4, 1997, 5:15 PM CDT
- In force
- 64 min
- Issued by
- NWS Birmingham, AL
- Area
- Whole counties
County Madison County, AL
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 4, 4:12 PM CDT | Thunderstorm Wind 52 | Hazel Green, AL | |
| Jul 4, 4:13 PM CDT | Hail 0.75 | Hazel Green, 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jul 4, 2:30 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Nashville Metro, TN (KBNA), launched 12:00Z, 9.2 hours before the alert went out and 152 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
- 38 J/kg
- Mixed-layer CIN
- -403 J/kg
- Mixed-layer LCL
- 932 m above ground
- 0-6 km bulk shear
- 60 kt
- 0-1 km storm-relative helicity
- -74 m²/s²
- 0-3 km storm-relative helicity
- 37 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KHSV 042109 RRA SVRHSV ALC089-042215- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE HUNTSVILLE AL 411 PM CDT FRI JUL 4 1997 THE NATIONAL WEATHER SERVICE IN HUNTSVILLE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 515 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN NORTH ALABAMA ...MADISON COUNTY AT 405 PM CDT WEATHER SERVICE RADAR IN HUNTSVILLE INDICATED A SEVERE THUNDERSTORM OVER NORTHEAST LIMESTONE COUNTY NEAR ARDMORE. THIS STORM WILL MOVE INTO NORTHWEST MADISON FROM TONEY NORTHWARD. OTHER SEVERE THUNDERSTORMS WERE INDICATED OVER LAUDERDALE COUNTY NEAR FLORENCE AND ANDERSON. AND OVER COLBERT COUNTY WEST OF TUSCUMBIA AND COLBERT HEIGHTS. THE LINE WAS MOVING SOUTHEAST AT 15 MILES AN HOUR. SEVERE THUNDERSTORM WARNING CONTINUE UNTIL 445 PM FOR LIMESTONE...LADUERDALE AND COLBERT COUNTIES. 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 ROAD.
The office that day
Everything else NWS Birmingham, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 4, 2:38 PM CDT | Severe Thunderstorm Warning | BMX | Lauderdale | 67 min |
| Jul 4, 3:37 PM CDT | Severe Thunderstorm Warning | BMX | Colbert | 68 min |
| Jul 4, 3:47 PM CDT | Severe Thunderstorm Warning | BMX | Lauderdale, Limestone | 58 min |
| Jul 4, 4:25 PM CDT | Severe Thunderstorm Warning | BMX | Lawrence | 65 min |
| Jul 4, 4:33 PM CDT | Severe Thunderstorm Warning | BMX | Franklin | 57 min |
| Jul 4, 4:33 PM CDT | Severe Thunderstorm Warning | BMX | Jackson | 57 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.