Alert archive / Alabama / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 335, NWS Birmingham, AL
NWS Birmingham, AL issued this severe thunderstorm warning at May 6, 1998, 7:33 PM CDT for Clay County, Alabama. It was in force for 47 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
- May 6, 1998, 7:33 PM CDT (00:33 UTC)
- Expired
- May 6, 1998, 8:20 PM CDT
- In force
- 47 min
- Issued by
- NWS Birmingham, AL
- Area
- Whole counties
County Clay County, AL
The radar
The Maxwell AFB radar (KMXX), 82 km from the middle of the area, began a volume at 00:35 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 00:00Z, 0.6 hours before the alert went out and 86 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
- 82 J/kg
- Mixed-layer CIN
- -160 J/kg
- Mixed-layer LCL
- 1288 m above ground
- 0-6 km bulk shear
- 53 kt
- 0-1 km storm-relative helicity
- 253 m²/s²
- 0-3 km storm-relative helicity
- 560 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.7
The text
As transmitted, in the capitals the NWS used until 2016.
941 WUUS1 KBHM 070034 RRA SVRBHM ALC027-070120- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE BIRMINGHAM AL 733 PM CDT WED MAY 6 1998 THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... CLAY COUNTY... IN EAST CENTRAL ALABAMA * UNTIL 820 PM CDT * AT 732 PM CDT... A SEVERE THUNDERSTORM WAS SHOWN...BY WEATHER RADAR MOVING INTO NORTHERN AND WESTERN CLAY COUNTY. THIS STORM WAS MOVING SOUTHEAST AT 25 MILES AN HOUR. THIS STORM HAS A HISTORY OF LARGE HAIL. GO INSIDE A STURDY BUILDING AND STAY AWAY FROM WINDOWS 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.
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, May 6, 6:00 PM CDT, 1 hour 33 minutes before
ALZ001>004-011-014-070000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BIRMINGHAM AL 600 PM CDT WED MAY 6 1998 THE TORNADO WATCH FOR THE FOLLOWING COUNTIES IN ALABAMA HAS BEEN CANCELLED... IN ALABAMA LAUDERDALE...FRANKLIN...COLBERT...LAWRENCE...MARION AND WINSTON. OTHER WATCHES AND WARNINGS WILL BE POSSIBLE AFTER MIDNIGHT TONIGHT ACROSS THESE COUNTIES.
Special weather statement, May 6, 6:00 PM CDT, 1 hour 33 minutes before
ALZ001>004-011-014-070000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BIRMINGHAM AL 600 PM CDT WED MAY 6 1998 THE TORNADO WATCH FOR THE FOLLOWING COUNTIES IN ALABAMA HAS BEEN CANCELLED... IN ALABAMA LAUDERDALE...FRANKLIN...COLBERT...LAWRENCE...MARION AND WINSTON. OTHER WATCHES AND WARNINGS WILL BE POSSIBLE AFTER MIDNIGHT TONIGHT ACROSS THESE COUNTIES.
Special weather statement, May 6, 6:15 PM CDT, 1 hour 18 minutes before
ALZ005>010-016-070015- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BIRMINGHAM AL 615 PM CDT WED MAY 6 1998 THE TORNADO WATCH FOR THE FOLLOWING COUNTIES IN ALABAMA HAS BEEN CANCELLED... IN ALABAMA LIMESTONE...MADISON...MORGAN...MARSHALL...JACKSON...DEKALB AND CULLMAN. OTHER WATCHES AND WARNINGS WILL BE POSSIBLE AFTER MIDNIGHT TONIGHT ACROSS THESE COUNTIES.
Special weather statement, May 6, 6:15 PM CDT, 1 hour 18 minutes before
ALZ005>010-016-070015- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BIRMINGHAM AL 615 PM CDT WED MAY 6 1998 THE TORNADO WATCH FOR THE FOLLOWING COUNTIES IN ALABAMA HAS BEEN CANCELLED... IN ALABAMA LIMESTONE...MADISON...MORGAN...MARSHALL...JACKSON...DEKALB AND CULLMAN. OTHER WATCHES AND WARNINGS WILL BE POSSIBLE AFTER MIDNIGHT TONIGHT ACROSS THESE COUNTIES.
Special weather statement, May 6, 7:15 PM CDT, 18 minutes before
ALZ017>018-020-070045- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BIRMINGHAM AL 715 PM CDT WED MAY 6 1998 THE TORNADO WATCH FOR THE FOLLOWING COUNTIES IN ALABAMA HAS BEEN CANCELLED... IN ALABAMA BLOUNT...ETOWAH...AND CHEROKEE. OTHER WATCHES AND WARNINGS WILL BE POSSIBLE AFTER MIDNIGHT TONIGHT ACROSS THESE COUNTIES.
Special weather statement, May 6, 7:15 PM CDT, 18 minutes before
ALZ017>018-020-070045- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BIRMINGHAM AL 715 PM CDT WED MAY 6 1998 THE TORNADO WATCH FOR THE FOLLOWING COUNTIES IN ALABAMA HAS BEEN CANCELLED... IN ALABAMA BLOUNT...ETOWAH...AND CHEROKEE. OTHER WATCHES AND WARNINGS WILL BE POSSIBLE AFTER MIDNIGHT TONIGHT ACROSS THESE COUNTIES.
The office that day
Everything else NWS Birmingham, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 6, 7:01 PM CDT | Severe Thunderstorm Warning | BMX | Tuscaloosa | 64 min |
| May 6, 7:05 PM CDT | Severe Thunderstorm Warning | BMX | Talladega | 60 min |
| May 6, 7:18 PM CDT | Severe Thunderstorm Warning | BMX | Bibb | 47 min |
| May 6, 7:25 PM CDT | Severe Thunderstorm Warning | BMX | Perry | 60 min |
| May 6, 7:38 PM CDT | Severe Thunderstorm Warning | BMX | Shelby | 47 min |
| May 6, 7:42 PM CDT | Tornado Warning | BMX | Bibb | 18 min |
| May 6, 7:44 PM CDT | Tornado Warning | BMX | Perry | 46 min |
| May 6, 7:52 PM CDT | Severe Thunderstorm Warning | BMX | Chilton | 48 min |
| May 6, 8:14 PM CDT | Tornado Warning | BMX | Autauga, Dallas | 66 min |
| May 6, 9:05 PM CDT | Tornado Warning | BMX | Autauga | 45 min |
| May 6, 9:08 PM CDT | Severe Thunderstorm Warning | BMX | Tallapoosa | 47 min |
| May 6, 9:28 PM CDT | Severe Thunderstorm Warning | BMX | Lowndes, Montgomery | 42 min |
| May 6, 10:13 PM CDT | Severe Thunderstorm Warning | BMX | Montgomery | 47 min |
| May 6, 10:45 PM CDT | Severe Thunderstorm Warning | BMX | Lowndes | 50 min |
| May 6, 11:24 PM CDT | Severe Thunderstorm Warning | BMX | Montgomery | 31 min |
| May 6, 11:45 PM CDT | Severe Thunderstorm Warning | BMX | Pike | 65 min |
| May 7, 12:03 AM CDT | Severe Thunderstorm Warning | BMX | Barbour | 62 min |
| May 7, 4:29 AM CDT | Tornado Warning | BMX | Lauderdale | 36 min |
| May 7, 5:03 AM CDT | Tornado Warning | BMX | Lawrence | 32 min |
| May 7, 5:06 AM CDT | Tornado Warning | BMX | Lauderdale | 19 min |
| May 7, 5:10 AM CDT | Tornado Warning | BMX | Limestone | 30 min |
| May 7, 5:41 AM CDT | Tornado Warning | BMX | Limestone | 34 min |
| May 7, 5:50 AM CDT | Tornado Warning | BMX | Madison | 45 min |
| May 7, 6:20 AM CDT | Tornado Warning | BMX | Jackson | 25 min |
| May 7, 6:34 AM CDT | Tornado Warning | BMX | Madison | 31 min |
| May 7, 6:45 AM CDT | Tornado Warning | BMX | Jackson | 35 min |
| May 7, 4:13 PM CDT | Severe Thunderstorm Warning | BMX | Jackson | 47 min |
| May 7, 4:19 PM CDT | Tornado Warning | BMX | Limestone | 51 min |
| May 7, 4:25 PM CDT | Tornado Warning | BMX | Jackson | 50 min |
| May 7, 4:27 PM CDT | Tornado Warning | BMX | Madison | 63 min |
| May 7, 4:44 PM CDT | Severe Thunderstorm Warning | BMX | Lauderdale | 51 min |
| May 7, 5:03 PM CDT | Tornado Warning | BMX | Jackson | 67 min |
| May 7, 5:45 PM CDT | Tornado Warning | BMX | DeKalb | 50 min |
| May 7, 6:57 PM CDT | Severe Thunderstorm Warning | BMX | Franklin | 48 min |
Nearby
Severe Thunderstorm Warnings in Alabama, 1998Every severe thunderstorm warning in 1998
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.