Alert archive / Alabama / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 497, NWS Birmingham, AL
NWS Birmingham, AL issued this severe thunderstorm warning at Nov 1, 1997, 12:31 PM CST for Sumter County, Alabama. It was in force for 49 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
- Nov 1, 1997, 12:31 PM CST (18:31 UTC)
- Expired
- Nov 1, 1997, 1:20 PM CST
- In force
- 49 min
- Issued by
- NWS Birmingham, AL
- Area
- Whole counties
County Sumter County, AL
The radar
The Columbus AFB radar (KGWX), 146 km from the middle of the area, began a volume at 18:23 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, 6.5 hours before the alert went out and 148 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 753 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- 105 m²/s²
- 0-3 km storm-relative helicity
- 152 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KBHM 011832 RRA SVRBHM ALC119-011920- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE BIRMINGHAM AL 1231 PM CST SAT NOV 1 1997 THE NATIONAL WEATHER SERVICE IN BIRMINGHAM AL HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 120 PM CST FOR PEOPLE IN THE FOLLOWING LOCATION... IN WEST CENTRAL ALABAMA ...SUMTER COUNTY... AT 1231 PM CST... WEATHER RADAR SHOWED A SEVERE THUNDERSTORM PRODUCING LARGE HAIL 9 MILES SOUTHWEST OF EMELLE MOVING EAST AT 40 MPH. SOME LOCATIONS IN THE PATH OF THIS STORM ARE... EMELLE AROUND 1229 PM CST... BOYD AROUND 1230 PM CST... SUMTERVILLE AROUND 1236 PM CST... LIVINGSTON AROUND 1241 PM CST... GAINESVILLE AROUND 1243 PM CST... <<CALL TO ACTION>> IF YOU ARE CAUGHT OUTSIDE... SEEK REFUGE FROM THE STORM IN A STRONG BUILDING. BOATERS ON AREA LAKES SHOULD TAKE SHELTER. DAMAGING WIND... LARGE HAIL... VERY HEAVY RAIN... AND DANGEROUS LIGHTNING ARE ALL LIKELY. DO NOT SEEK SHELTER UNDER TREES OR OTHER ISOLATED TALL OBJECTS. THESE ATTRACT LIGHTNING. DO NOT 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, Nov 1, 9:37 AM CST, 2 hours 54 minutes before
ALZ001>050-GAZ089-090-102-120-020100- HAZARDOUS WEATHER OUTLOOK FOR NORTH/CENTRAL AL AND WEST CENTRAL GA NATIONAL WEATHER SERVICE BIRMINGHAM AL 940 AM CST SAT NOV 1 1997 A COLD FRONT WILL MOVE INTO WEST ALABAMA EARLY THIS AFTERNOON AND WILL BE LOCATED NEAR THE ALABAMA/GEORGIA STATE LINE BY SUNSET. THE AIRMASS ACROSS THE REGION WILL BECOME MORE UNSTABLE AS SOUTH WINDS INCREASE DURING THE DAY. THE STORM PREDICTION CENTER HAS OUTLOOKED THE AREA FOR A SLIGHT RISK OF SEVERE THUNDERSTORMS. ANY THUNDERSTORMS THAT DEVELOP TODAY WILL HAVE THE POTENTIAL TO BECOME SEVERE...WITH LARGE HAIL BEING THE PRIMARY THREAT. STORM SPOTTERS AND EMERGENCY MANAGEMENT PERSONNEL SHOULD BE ON STANDBY AND BE READY FOR SEVERE WEATHER ACTIVATION IF A SEVERE THUNDERSTORM OR TORNADO WATCH IS ISSUED. FOR THE SOUTHERN ALABAMA HAZARDOUS WEATHER OUTLOOK...SEE PRODUCT BHMSPSMOB. FOR MORE WEATHER INFORMATION VISIT OUR INTERNET SITE AT HTTP://WWW.ACESAG.AUBURN.EDU/DEPARTMENT/NWS/INDEX.HTML ON THE WORLD WIDE WEB.
Special weather statement, Nov 1, 9:40 AM CST, 2 hours 51 minutes before
ALZ001>050-GAZ089-090-102-120-020100- HAZARDOUS WEATHER OUTLOOK FOR NORTH/CENTRAL AL AND WEST CENTRAL GA NATIONAL WEATHER SERVICE BIRMINGHAM AL 940 AM CST SAT NOV 1 1997 A COLD FRONT WILL MOVE INTO WEST ALABAMA EARLY THIS AFTERNOON AND WILL BE LOCATED NEAR THE ALABAMA/GEORGIA STATE LINE BY SUNSET. THE AIRMASS ACROSS THE REGION WILL BECOME MORE UNSTABLE AS SOUTH WINDS INCREASE DURING THE DAY. THE STORM PREDICTION CENTER HAS OUTLOOKED THE AREA FOR A SLIGHT RISK OF SEVERE THUNDERSTORMS. ANY THUNDERSTORMS THAT DEVELOP TODAY WILL HAVE THE POTENTIAL TO BECOME SEVERE...WITH LARGE HAIL BEING THE PRIMARY THREAT. STORM SPOTTERS AND EMERGENCY MANAGEMENT PERSONNEL SHOULD BE ON STANDBY AND BE READY FOR SEVERE WEATHER ACTIVATION IF A SEVERE THUNDERSTORM OR TORNADO WATCH IS ISSUED. FOR THE SOUTHERN ALABAMA HAZARDOUS WEATHER OUTLOOK...SEE PRODUCT BHMSPSMOB. FOR MORE WEATHER INFORMATION VISIT OUR INTERNET SITE AT HTTP://WWW.ACESAG.AUBURN.EDU/DEPARTMENT/NWS/INDEX.HTML ON THE WORLD WIDE WEB.
The office that day
Everything else NWS Birmingham, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 1, 10:54 AM CST | Severe Thunderstorm Warning | BMX | Calhoun | 46 min |
| Nov 1, 12:36 PM CST | Severe Thunderstorm Warning | BMX | Pickens, Tuscaloosa | 49 min |
| Nov 1, 12:38 PM CST | Severe Thunderstorm Warning | BMX | Jefferson | 47 min |
| Nov 1, 12:47 PM CST | Severe Thunderstorm Warning | BMX | Greene | 48 min |
| Nov 1, 1:14 PM CST | Severe Thunderstorm Warning | BMX | Marengo | 46 min |
| Nov 1, 1:22 PM CST | Severe Thunderstorm Warning | BMX | Hale | 63 min |
| Nov 1, 1:45 PM CST | Severe Thunderstorm Warning | BMX | Perry | 35 min |
| Nov 1, 1:58 PM CST | Severe Thunderstorm Warning | BMX | Lauderdale, Limestone | 47 min |
| Nov 1, 2:03 PM CST | Severe Thunderstorm Warning | BMX | Jefferson, St. Clair | 47 min |
| Nov 1, 2:03 PM CST | Severe Thunderstorm Warning | BMX | Dallas | 32 min |
| Nov 1, 2:15 PM CST | Severe Thunderstorm Warning | BMX | Madison | 45 min |
| Nov 1, 2:25 PM CST | Severe Thunderstorm Warning | BMX | Perry | 35 min |
| Nov 1, 2:30 PM CST | Severe Thunderstorm Warning | BMX | Pike | 50 min |
| Nov 1, 2:36 PM CST | Severe Thunderstorm Warning | BMX | Bullock, Montgomery | 49 min |
| Nov 1, 2:49 PM CST | Tornado Warning | BMX | Russell | 51 min |
| Nov 1, 2:56 PM CST | Severe Thunderstorm Warning | BMX | Calhoun, Talladega | 49 min |
| Nov 1, 3:12 PM CST | Severe Thunderstorm Warning | BMX | Macon | 33 min |
| Nov 1, 3:15 PM CST | Severe Thunderstorm Warning | BMX | Barbour | 50 min |
| Nov 1, 3:27 PM CST | Severe Thunderstorm Warning | BMX | Montgomery, Pike | 48 min |
| Nov 1, 3:36 PM CST | Severe Thunderstorm Warning | BMX | Lee | 49 min |
| Nov 1, 3:53 PM CST | Severe Thunderstorm Warning | BMX | Russell | 47 min |
| Nov 1, 4:13 PM CST | Severe Thunderstorm Warning | BMX | Bullock, Montgomery | 32 min |
| Nov 1, 4:21 PM CST | Severe Thunderstorm Warning | BMX | Pike | 49 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.