Alert archive / Alabama / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 446, NWS Birmingham, AL
NWS Birmingham, AL issued this severe thunderstorm warning at Jul 28, 1997, 2:33 PM CDT for Calhoun County, Alabama. It was in force for 57 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
- Jul 28, 1997, 2:33 PM CDT (19:33 UTC)
- Expired
- Jul 28, 1997, 3:30 PM CDT
- In force
- 57 min
- Issued by
- NWS Birmingham, AL
- Area
- Whole counties
County Calhoun County, AL
The radar
The Birmingham radar (KBMX), 110 km from the middle of the area, began a volume at 19:35 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, 7.6 hours before the alert went out and 110 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
- 1583 J/kg
- Mixed-layer CIN
- -69 J/kg
- Mixed-layer LCL
- 879 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 54 m²/s²
- 0-3 km storm-relative helicity
- 106 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.8
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KBHM 281934 RRA SVRBHM ALC015-282030- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE BIRMINGHAM AL 233 PM CDT MON JUL 28 1997 THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 330 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN EAST CENTRAL ALABAMA ...CALHOUN COUNTY AT 2:33PM WEATHER SERVICE RADAR INDICATED A SEVERE THUNDERSTORM OVER NORTHERN CALHOUN COUNTY NEAR DUKE...NORTHWEST OF JACKSONVILLE. THIS STORM WILL LIKELY PRODUCE DAMAGING WIND AND SOME HAIL. THE STORM IS MOVING SLOWLY SOUTH AND WILL PASS JUST WEST OF JACKSONVILLE AND MOVE TOWARDS THE FORT MCCLELLAN AREA BY AROUND 3 PM. 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.
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
In the hours before
Special weather statement, Jul 28, 9:47 AM CDT, 4 hours 46 minutes before
ALZ001>050-GAZ089-090-102-120-290240- HAZARDOUS WEATHER OUTLOOK FOR NORTH/CENTRAL AL AND WEST CENTRAL GA NATIONAL WEATHER SERVICE BIRMINGHAM AL 947 AM CDT MON JUL 28 1997 A LARGE AREA OF HIGH PRESSURE WILL CONTINUE ACROSS MOST OF NORTHERN ALABAMA TODAY. HOWEVER...THERE WILL BE ENOUGH MOISTURE AND INSTABILITY TO PROVIDE A CHANCE OF SHOWERS AND THUNDERSTORMS ACROSS THE NORTHERN HALF OF ALABAMA AND WEST CENTRAL GEORGIA LATE THIS AFTERNOON. STRONG GUSTY WINDS ARE POSSIBLE WITH SOME OF THESE THUNDERSTORMS...BUT NO ORGANIZED SEVERE WEATHER IS EXPECTED. TEMPERATURES ARE EXPECTED TO REACH INTO THE MIDDLE TO UPPER 90S ONCE AGAIN THIS AFTERNOON. THE HOT AND HUMID CONDITIONS WILL AGAIN PUSH HEAT INDEX VALUES INTO THE 105 TO 110 DEGREE RANGE. ACTIVATION OF STORM SPOTTERS AND EMERGENCY MANAGEMENT PERSONNEL SHOULD NOT BE NECESSARY. FOR THE SOUTHERN ALABAMA HAZARDOUS WEATHER OUTLOOK...SEE PRODUCT BHMSPSMOB.
Special weather statement, Jul 28, 9:48 AM CDT, 4 hours 45 minutes before
ALZ001>050-GAZ089-090-102-120-290240- HAZARDOUS WEATHER OUTLOOK FOR NORTH/CENTRAL AL AND WEST CENTRAL GA NATIONAL WEATHER SERVICE BIRMINGHAM AL 947 AM CDT MON JUL 28 1997 A LARGE AREA OF HIGH PRESSURE WILL CONTINUE ACROSS MOST OF NORTHERN ALABAMA TODAY. HOWEVER...THERE WILL BE ENOUGH MOISTURE AND INSTABILITY TO PROVIDE A CHANCE OF SHOWERS AND THUNDERSTORMS ACROSS THE NORTHERN HALF OF ALABAMA AND WEST CENTRAL GEORGIA LATE THIS AFTERNOON. STRONG GUSTY WINDS ARE POSSIBLE WITH SOME OF THESE THUNDERSTORMS...BUT NO ORGANIZED SEVERE WEATHER IS EXPECTED. TEMPERATURES ARE EXPECTED TO REACH INTO THE MIDDLE TO UPPER 90S ONCE AGAIN THIS AFTERNOON. THE HOT AND HUMID CONDITIONS WILL AGAIN PUSH HEAT INDEX VALUES INTO THE 105 TO 110 DEGREE RANGE. ACTIVATION OF STORM SPOTTERS AND EMERGENCY MANAGEMENT PERSONNEL SHOULD NOT BE NECESSARY. FOR THE SOUTHERN ALABAMA HAZARDOUS WEATHER OUTLOOK...SEE PRODUCT BHMSPSMOB.
The office that day
Everything else NWS Birmingham, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 27, 9:26 PM CDT | Severe Thunderstorm Warning | BMX | Russell | 59 min |
| Jul 27, 9:53 PM CDT | Severe Thunderstorm Warning | BMX | Barbour | 47 min |
| Jul 28, 12:19 PM CDT | Severe Thunderstorm Warning | BMX | Marengo | 31 min |
| Jul 28, 12:32 PM CDT | Severe Thunderstorm Warning | BMX | Cherokee | 48 min |
| Jul 28, 1:50 PM CDT | Severe Thunderstorm Warning | BMX | Jackson | 40 min |
| Jul 28, 2:10 PM CDT | Severe Thunderstorm Warning | BMX | DeKalb, Jackson | 65 min |
| Jul 28, 2:53 PM CDT | Severe Thunderstorm Warning | BMX | Madison | 52 min |
| Jul 28, 3:18 PM CDT | Severe Thunderstorm Warning | BMX | Morgan | 57 min |
| Jul 28, 3:40 PM CDT | Severe Thunderstorm Warning | BMX | Marshall | 65 min |
| Jul 28, 3:54 PM CDT | Severe Thunderstorm Warning | BMX | Randolph | 51 min |
| Jul 28, 3:58 PM CDT | Severe Thunderstorm Warning | BMX | Blount, Cullman | 47 min |
| Jul 28, 4:11 PM CDT | Severe Thunderstorm Warning | BMX | Jefferson | 49 min |
| Jul 28, 4:15 PM CDT | Severe Thunderstorm Warning | BMX | Shelby | 60 min |
| Jul 28, 4:41 PM CDT | Severe Thunderstorm Warning | BMX | Tallapoosa | 64 min |
| Jul 28, 4:50 PM CDT | Severe Thunderstorm Warning | BMX | Bibb, Chilton | 40 min |
| Jul 28, 5:06 PM CDT | Severe Thunderstorm Warning | BMX | Coosa | 54 min |
| Jul 28, 5:28 PM CDT | Severe Thunderstorm Warning | BMX | Bibb, Chilton | 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.