Alert archive / Alabama / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 399, NWS Birmingham, AL
NWS Birmingham, AL issued this severe thunderstorm warning at Jul 4, 1997, 2:38 PM CDT for Lauderdale County, Alabama. It was in force for 67 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, 2:38 PM CDT (19:38 UTC)
- Expired
- Jul 4, 1997, 3:45 PM CDT
- In force
- 67 min
- Issued by
- NWS Birmingham, AL
- Area
- Whole counties
County Lauderdale County, AL
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 4, 3:32 PM CDT | Hail 0.75 | Killen, AL | |
| Jul 4, 3:32 PM CDT | Thunderstorm Wind 60 | Killen, 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, 7.6 hours before the alert went out and 167 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.
289 WUUS1 KHSV 041936 RRA SVRHSV ALC077-042045- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE HUNTSVILLE AL 238 PM CDT FRI JUL 4 1997 THE NATIONAL WEATHER SERVICE IN HUNTSVILLE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 345 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN NORTH ALABAMA ...LAUDERDALE COUNTY AT 235 PM NATIONAL WEATHER SERVICE RADAR IN HUNTSVILLE AND NASHVILLE INDICATED A SEVERE THUNDERSTORM APPROACHING LAUDERDALE COUNTY IN NORTHWEST ALABAMA. THE THUNDERSTORM WAS IN A LINE OF THUNDERSTORMS MOVING SOUTHEAST TOWARDS THE COUNTY. PERSONS AROUND AREA LAKES AND RIVERS IN LAUDERDALE COUNTY SHOULD SEEK SHELTER IMMEDIATELY AS LARGE HAIL AND DAMAGING WINDS ARE LIKELY. IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER FROM THE WEATHER IN A STRONG BUILDING. DAMAGING WIND...LARGE HAIL...VERY HEAVY RAIN... AND DEADLY LIGHTNING ARE ALL POSSIBLE IN SEVERE THUNDERSTORMS. STAY INSIDE AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.
The office that day
Everything else NWS Birmingham, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| 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, 4:11 PM CDT | Severe Thunderstorm Warning | BMX | Madison | 64 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.