Alert archive / Alabama / Severe Thunderstorm Warnings in 1999
Severe Thunderstorm Warning 231, NWS Birmingham, AL
NWS Birmingham, AL issued this severe thunderstorm warning at May 13, 1999, 11:39 AM CDT for Jackson County, Alabama. It was in force for 51 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 13, 1999, 11:39 AM CDT (16:39 UTC)
- Expired
- May 13, 1999, 12:30 PM CDT
- In force
- 51 min
- Issued by
- NWS Birmingham, AL
- Area
- Whole counties
County Jackson County, AL
The radar
The Northeast Alabama radar (KHTX), 19 km from the middle of the area, began a volume at 16:41 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
Nashville Metro, TN (KBNA), launched 12:00Z, 4.7 hours before the alert went out and 160 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
- 686 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 18 m²/s²
- 0-3 km storm-relative helicity
- 11 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
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 13, 9:54 AM CDT, 1 hour 45 minutes before
ALZ001>050-GAZ089-090-102-120-140235- HAZARDOUS WEATHER OUTLOOK FOR NORTH/CENTRAL AL AND WEST CENTRAL GA NATIONAL WEATHER SERVICE BIRMINGHAM AL 954 AM CDT THU MAY 13 1999 A SLOW MOVING COLD FRONT WAS LOCATED ACROSS CENTRAL MISSISSIPPI THIS MORNING. THIS BOUNDARY WILL MOVE EASTWARD TODAY AND PASS THROUGH MOST OF THE STATE BY THIS EVENING. UPPER LEVEL WINDS ARE FORECAST TO INCREASE ABOVE THE NORTHERN TWO THIRDS OF ALABAMA. THEREFORE...THE STORM PREDICTION CENTER HAS PLACED PART OF ALABAMA IN A SLIGHT RISK OF SEVERE THUNDERSTORMS TODAY. THE SLIGHT RISK AREA IS GENERALLY EAST OF A LINE FROM HUNTSVILLE TO TUSCALOOSA TO MONTGOMERY. SEVERE THUNDERSTORMS CAN PRODUCE 3/4 INCH DIAMETER HAIL OR LARGER...DAMAGING WINDS OF AT LEAST 58 MILES AN HOUR...AND OCCASIONAL TORNADOES. STORM SPOTTERS AND EMERGENCY MANAGEMENT PERSONNEL SHOULD REMAIN ALERT FOR CHANGING WEATHER CONDITIONS AND MONITOR NOAA WEATHER RADIO OR LOCAL TV AND RADIO FOR POSSIBLE WARNINGS LATER TODAY. THE HAZARDOUS WEATHER OUTLOOK FOR SOUTHWEST ALABAMA... SEE PRODUCT BHMSPSMOB. FOR SOUTHEAST ALABAMA... LOOK AT MIASPSTLH. FOR MORE WEATHER INFORMATION VISIT OUR INTERNET SITE ON THE WORLD WIDE WEB AT HTTP://WWW.ACES.EDU/NWS/
Special weather statement, May 13, 9:54 AM CDT, 1 hour 45 minutes before
ALZ001>050-GAZ089-090-102-120-140235- HAZARDOUS WEATHER OUTLOOK FOR NORTH/CENTRAL AL AND WEST CENTRAL GA NATIONAL WEATHER SERVICE BIRMINGHAM AL 954 AM CDT THU MAY 13 1999 A SLOW MOVING COLD FRONT WAS LOCATED ACROSS CENTRAL MISSISSIPPI THIS MORNING. THIS BOUNDARY WILL MOVE EASTWARD TODAY AND PASS THROUGH MOST OF THE STATE BY THIS EVENING. UPPER LEVEL WINDS ARE FORECAST TO INCREASE ABOVE THE NORTHERN TWO THIRDS OF ALABAMA. THEREFORE...THE STORM PREDICTION CENTER HAS PLACED PART OF ALABAMA IN A SLIGHT RISK OF SEVERE THUNDERSTORMS TODAY. THE SLIGHT RISK AREA IS GENERALLY EAST OF A LINE FROM HUNTSVILLE TO TUSCALOOSA TO MONTGOMERY. SEVERE THUNDERSTORMS CAN PRODUCE 3/4 INCH DIAMETER HAIL OR LARGER...DAMAGING WINDS OF AT LEAST 58 MILES AN HOUR...AND OCCASIONAL TORNADOES. STORM SPOTTERS AND EMERGENCY MANAGEMENT PERSONNEL SHOULD REMAIN ALERT FOR CHANGING WEATHER CONDITIONS AND MONITOR NOAA WEATHER RADIO OR LOCAL TV AND RADIO FOR POSSIBLE WARNINGS LATER TODAY. THE HAZARDOUS WEATHER OUTLOOK FOR SOUTHWEST ALABAMA... SEE PRODUCT BHMSPSMOB. FOR SOUTHEAST ALABAMA... LOOK AT MIASPSTLH. FOR MORE WEATHER INFORMATION VISIT OUR INTERNET SITE ON THE WORLD WIDE WEB AT HTTP://WWW.ACES.EDU/NWS/
The office that day
Everything else NWS Birmingham, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 13, 2:24 AM CDT | Severe Thunderstorm Warning | BMX | Limestone, Madison | 46 min |
| May 13, 11:25 AM CDT | Severe Thunderstorm Warning | BMX | DeKalb | 35 min |
| May 13, 11:35 AM CDT | Severe Thunderstorm Warning | BMX | Cherokee | 35 min |
| May 13, 11:41 AM CDT | Severe Thunderstorm Warning | BMX | Morgan | 49 min |
| May 13, 11:48 AM CDT | Severe Thunderstorm Warning | BMX | Madison, Marshall | 62 min |
| May 13, 11:51 AM CDT | Severe Thunderstorm Warning | BMX | Limestone | 34 min |
| May 13, 11:59 AM CDT | Severe Thunderstorm Warning | BMX | DeKalb | 66 min |
| May 13, 12:02 PM CDT | Severe Thunderstorm Warning | BMX | Cherokee | 63 min |
| May 13, 12:14 PM CDT | Severe Thunderstorm Warning | BMX | Etowah | 36 min |
| May 13, 12:32 PM CDT | Severe Thunderstorm Warning | BMX | Coosa | 48 min |
| May 13, 12:55 PM CDT | Severe Thunderstorm Warning | BMX | Autauga | 50 min |
| May 13, 1:15 PM CDT | Severe Thunderstorm Warning | BMX | Coosa | 40 min |
| May 13, 1:26 PM CDT | Severe Thunderstorm Warning | BMX | Tallapoosa | 64 min |
| May 13, 1:28 PM CDT | Severe Thunderstorm Warning | BMX | Cherokee | 32 min |
| May 13, 1:35 PM CDT | Tornado Warning | BMX | Coosa | 35 min |
| May 13, 1:37 PM CDT | Severe Thunderstorm Warning | BMX | Clay | 48 min |
| May 13, 1:38 PM CDT | Tornado Warning | BMX | Elmore, Tallapoosa | 32 min |
| May 13, 1:45 PM CDT | Severe Thunderstorm Warning | BMX | Madison | 35 min |
| May 13, 1:48 PM CDT | Severe Thunderstorm Warning | BMX | Jackson | 47 min |
| May 13, 1:52 PM CDT | Severe Thunderstorm Warning | BMX | Autauga | 33 min |
| May 13, 2:00 PM CDT | Severe Thunderstorm Warning | BMX | Elmore | 35 min |
| May 13, 2:06 PM CDT | Severe Thunderstorm Warning | BMX | DeKalb | 34 min |
| May 13, 2:08 PM CDT | Severe Thunderstorm Warning | BMX | Randolph | 32 min |
| May 13, 2:10 PM CDT | Severe Thunderstorm Warning | BMX | Jackson | 35 min |
| May 13, 2:16 PM CDT | Severe Thunderstorm Warning | BMX | Montgomery | 49 min |
| May 13, 2:26 PM CDT | Severe Thunderstorm Warning | BMX | Tallapoosa | 34 min |
| May 13, 2:29 PM CDT | Severe Thunderstorm Warning | BMX | Chilton | 21 min |
| May 13, 2:33 PM CDT | Severe Thunderstorm Warning | BMX | Elmore | 32 min |
| May 13, 2:37 PM CDT | Severe Thunderstorm Warning | BMX | Coosa | 48 min |
| May 13, 2:44 PM CDT | Severe Thunderstorm Warning | BMX | Macon | 46 min |
| May 13, 2:49 PM CDT | Severe Thunderstorm Warning | BMX | Lee | 46 min |
| May 13, 2:54 PM CDT | Tornado Warning | BMX | Tallapoosa | 36 min |
| May 13, 3:10 PM CDT | Severe Thunderstorm Warning | BMX | Montgomery | 35 min |
| May 13, 3:21 PM CDT | Severe Thunderstorm Warning | BMX | Bullock | 64 min |
| May 13, 3:25 PM CDT | Severe Thunderstorm Warning | BMX | Randolph | 50 min |
| May 13, 3:29 PM CDT | Severe Thunderstorm Warning | BMX | Autauga | 36 min |
| May 13, 3:37 PM CDT | Severe Thunderstorm Warning | BMX | Lee | 48 min |
| May 13, 3:43 PM CDT | Severe Thunderstorm Warning | BMX | Macon | 32 min |
| May 13, 3:52 PM CDT | Severe Thunderstorm Warning | BMX | Russell | 33 min |
| May 13, 4:18 PM CDT | Severe Thunderstorm Warning | BMX | Barbour | 47 min |
| May 13, 4:53 PM CDT | Severe Thunderstorm Warning | BMX | Lee | 47 min |
| May 13, 5:29 PM CDT | Severe Thunderstorm Warning | BMX | Bullock | 51 min |
| May 13, 5:43 PM CDT | Severe Thunderstorm Warning | BMX | Barbour | 47 min |
| May 13, 6:04 PM CDT | Severe Thunderstorm Warning | BMX | Russell | 51 min |
| May 13, 6:34 PM CDT | Severe Thunderstorm Warning | BMX | Barbour | 51 min |
| May 13, 3:48 PM CDT | Severe Thunderstorm Warning | BMX | Muscogee | 62 min |
| May 13, 6:21 PM CDT | Severe Thunderstorm Warning | BMX | Quitman | 49 min |
Nearby
Severe Thunderstorm Warnings in Alabama, 1999Every severe thunderstorm warning in 1999
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.