Alert archive / Alabama / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 1, NWS Birmingham, AL
NWS Birmingham, AL issued this severe thunderstorm warning at Jan 7, 1998, 7:11 AM CST for Marengo County, Alabama. It was in force for 59 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
- Jan 7, 1998, 7:11 AM CST (13:11 UTC)
- Expired
- Jan 7, 1998, 8:10 AM CST
- In force
- 59 min
- Issued by
- NWS Birmingham, AL
- Area
- Whole counties
County Marengo County, AL
The radar
The Birmingham radar (KBMX), 140 km from the middle of the area, began a volume at 13:13 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jan 7, 7:20 AM CST | Thunderstorm Wind 50 | Sweet Water, AL | |
| Jan 7, 7:20 AM CST | Hail 0.75 | Sweet Water, 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 nearest sounding before it
Birmingham, AL (KBMX), launched 12:00Z, 1.2 hours before the alert went out and 140 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
- 214 J/kg
- Mixed-layer CIN
- -9 J/kg
- Mixed-layer LCL
- 576 m above ground
- 0-6 km bulk shear
- 62 kt
- 0-1 km storm-relative helicity
- 257 m²/s²
- 0-3 km storm-relative helicity
- 363 m²/s²
- Significant tornado parameter
- 0.3
- Supercell composite
- 1.6
The text
As transmitted, in the capitals the NWS used until 2016.
627 WUUS1 KBHM 071313 RRA SVRBHM ALC091-071410- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE BIRMINGHAM AL 711 AM CST WED JAN 7 1998 THE NATIONAL WEATHER SERVICE IN BIRMINGHAM AL HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 810 AM CST FOR PEOPLE IN THE FOLLOWING LOCATION... IN WEST CENTRAL ALABAMA ...MARENGO COUNTY... AT 706 AM CST... WEATHER RADAR SHOWED A SEVERE THUNDERSTORM PRODUCING DAMAGING WINDS NEAR PUTNAM IN SOUTHWEST MARENGO COUNTY. THIS STORM WAS MOVING TO THE NORTHEAST NEAR 45 MILES AN HOUR ALONG HIGHWAY 69 AND WILL AFFECT THE NANAFALIA...SWEET WATER...AND MYRTLEWOOD AREAS DURING THE NEXT 30 TO 45 MINUTES. 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.
The office that day
Everything else NWS Birmingham, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 7, 8:30 AM CST | Flash Flood Warning | BMX | Fayette, Greene, Hale, Pickens, Tuscaloosa | 3 hr |
| Jan 7, 8:30 AM CST | Flash Flood Warning | BMX | Marengo, Sumter | 3 hr |
| Jan 7, 8:30 AM CST | Flash Flood Warning | BMX | Lamar, Marion | 3 hr |
| Jan 7, 8:55 AM CST | Flash Flood Warning | BMX | Cullman, Lawrence | 6 hr |
| Jan 7, 8:55 AM CST | Flash Flood Warning | BMX | Limestone | 6 hr |
| Jan 7, 8:55 AM CST | Flash Flood Warning | BMX | Madison | 6 hr |
| Jan 7, 8:55 AM CST | Flash Flood Warning | BMX | Jefferson | 6 hr |
| Jan 7, 8:55 AM CST | Flash Flood Warning | BMX | Colbert, Franklin | 6 hr |
| Jan 7, 8:55 AM CST | Flash Flood Warning | BMX | Lauderdale | 6 hr |
| Jan 7, 8:55 AM CST | Flash Flood Warning | BMX | Blount, Walker | 6 hr |
| Jan 7, 8:55 AM CST | Flash Flood Warning | BMX | Autauga, Bibb, Chilton, Dallas, Perry, Shelby | 6 hr |
| Jan 7, 8:55 AM CST | Flash Flood Warning | BMX | Morgan, Winston | 6 hr |
| Jan 7, 8:55 AM CST | Flash Flood Warning | BMX | Lowndes | 6 hr |
| Jan 7, 9:38 AM CST | Severe Thunderstorm Warning | BMX | Jefferson, Shelby | 62 min |
| Jan 7, 10:10 AM CST | Severe Thunderstorm Warning | BMX | Autauga, Lowndes | 50 min |
| Jan 7, 10:25 AM CST | Tornado Warning | BMX | St. Clair | 50 min |
| Jan 7, 10:37 AM CST | Flash Flood Warning | BMX | Clay, Cleburne, Randolph | 6 hr |
| Jan 7, 10:37 AM CST | Flash Flood Warning | BMX | Calhoun, Cherokee, DeKalb, Etowah, Marshall, St. Clair | 6 hr |
| Jan 7, 10:37 AM CST | Flash Flood Warning | BMX | Talladega | 6 hr |
| Jan 7, 10:37 AM CST | Flash Flood Warning | BMX | Jackson | 6 hr |
| Jan 7, 10:43 AM CST | Tornado Warning | BMX | Etowah | 17 min |
| Jan 7, 10:53 AM CST | Tornado Warning | BMX | Marshall | 47 min |
| Jan 7, 11:22 AM CST | Flash Flood Warning | BMX | Greene, Hale, Marengo, Tuscaloosa | 4 hr |
| Jan 7, 11:22 AM CST | Flash Flood Warning | BMX | Pickens, Sumter | 4 hr |
| Jan 7, 11:22 AM CST | Flash Flood Warning | BMX | Fayette, Lamar, Marion | 4 hr |
| Jan 7, 11:36 AM CST | Tornado Warning | BMX | Jackson | 34 min |
| Jan 7, 12:13 PM CST | Severe Thunderstorm Warning | BMX | Tallapoosa | 47 min |
| Jan 7, 12:25 PM CST | Flash Flood Warning | BMX | Barbour, Lee, Macon, Russell | 2 hr |
| Jan 7, 12:25 PM CST | Flash Flood Warning | BMX | Chambers, Tallapoosa | 2 hr |
| Jan 7, 12:25 PM CST | Flash Flood Warning | BMX | Pike | 2 hr |
| Jan 7, 12:47 PM CST | Severe Thunderstorm Warning | BMX | Barbour | 48 min |
| Jan 7, 12:58 PM CST | Severe Thunderstorm Warning | BMX | Russell | 47 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.