Alert archive / Alabama / Severe Thunderstorm Warnings in 1999
Severe Thunderstorm Warning 398, NWS Birmingham, AL
NWS Birmingham, AL issued this severe thunderstorm warning at Jul 6, 1999, 4:54 PM CDT for Chambers County, Alabama. It was in force for 46 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 6, 1999, 4:54 PM CDT (21:54 UTC)
- Expired
- Jul 6, 1999, 5:40 PM CDT
- In force
- 46 min
- Issued by
- NWS Birmingham, AL
- Area
- Whole counties
County Chambers County, AL
The nearest sounding before it
Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 9.9 hours before the alert went out and 97 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
- 1066 J/kg
- Mixed-layer CIN
- -60 J/kg
- Mixed-layer LCL
- 1170 m above ground
- 0-6 km bulk shear
- 4 kt
- 0-1 km storm-relative helicity
- -20 m²/s²
- 0-3 km storm-relative helicity
- 66 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, Jul 6, 2:56 PM CDT, 1 hour 58 minutes before
ALZ001>050-GAZ089-090-102-120-062300- HAZARDOUS WEATHER OUTLOOK FOR NORTH/CENTRAL AL AND WEST CENTRAL GA NATIONAL WEATHER SERVICE BIRMINGHAM AL 256 PM CDT TUE JUL 6 1999 A SHORT WAVE TROUGH IN THE UPPER ATMOSPHERE CONTINUES SLOWLY MOVING TOWARDS ALABAMA THIS AFTERNOON. DOPPLER RADAR INDICATES A LARGE AREA OF SHOWERS AND THUNDERSTORMS DEVELOPING IN WESTERN SOUTH CAROLINA... SOUTHWESTERN NORTH CAROLINA...AND NORTHERN GEORGIA. THE AREA OF STORMS WILL DRIFT SLIGHTLY SOUTHWARD AS IT APPROACHES ALABAMA...AND THE STORM PREDICTION CENTER AS PLACED MUCH OF EASTERN ALABAMA...IN A SLIGHT RISK FOR SEVERE THUNDERSTORMS...THROUGH WEDNESDAY MORNING. ISOLATED STORMS COULD BECOME SEVERE...WITH THE MAIN THREAT BEING DAMAGING WINDS AND DEADLY LIGHTNING. THE STORMS WILL ALSO BE SLOW MOVING...WHICH MEANS LOCALLY HEAVY RAINFALL WILL BE POSSIBLE. CURRENTLY...NO WATCHES OR WARNINGS ARE IN EFFECT...BUT A SEVERE THUNDERSTORM WATCH DOES BORDER EXTREME NORTHEAST ALABAMA. 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 TONIGHT. 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, Jul 6, 2:56 PM CDT, 1 hour 58 minutes before
ALZ001>050-GAZ089-090-102-120-062300- HAZARDOUS WEATHER OUTLOOK FOR NORTH/CENTRAL AL AND WEST CENTRAL GA NATIONAL WEATHER SERVICE BIRMINGHAM AL 256 PM CDT TUE JUL 6 1999 A SHORT WAVE TROUGH IN THE UPPER ATMOSPHERE CONTINUES SLOWLY MOVING TOWARDS ALABAMA THIS AFTERNOON. DOPPLER RADAR INDICATES A LARGE AREA OF SHOWERS AND THUNDERSTORMS DEVELOPING IN WESTERN SOUTH CAROLINA... SOUTHWESTERN NORTH CAROLINA...AND NORTHERN GEORGIA. THE AREA OF STORMS WILL DRIFT SLIGHTLY SOUTHWARD AS IT APPROACHES ALABAMA...AND THE STORM PREDICTION CENTER AS PLACED MUCH OF EASTERN ALABAMA...IN A SLIGHT RISK FOR SEVERE THUNDERSTORMS...THROUGH WEDNESDAY MORNING. ISOLATED STORMS COULD BECOME SEVERE...WITH THE MAIN THREAT BEING DAMAGING WINDS AND DEADLY LIGHTNING. THE STORMS WILL ALSO BE SLOW MOVING...WHICH MEANS LOCALLY HEAVY RAINFALL WILL BE POSSIBLE. CURRENTLY...NO WATCHES OR WARNINGS ARE IN EFFECT...BUT A SEVERE THUNDERSTORM WATCH DOES BORDER EXTREME NORTHEAST ALABAMA. 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 TONIGHT. 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 |
|---|---|---|---|---|
| Jul 5, 7:34 PM CDT | Flash Flood Warning | BMX | Jefferson | 2 hr |
| Jul 6, 4:47 PM CDT | Flash Flood Warning | BMX | Cherokee | 2 hr |
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.