Alert archive / Alabama / Flash Flood Warnings in 1999
Flash Flood Warning 50, NWS Birmingham, AL
NWS Birmingham, AL issued this flash flood warning at Jul 7, 1999, 3:18 PM CDT for Autauga County, Alabama. It was in force for 92 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 7, 1999, 3:18 PM CDT (20:18 UTC)
- Expired
- Jul 7, 1999, 4:50 PM CDT
- In force
- 92 min
- Issued by
- NWS Birmingham, AL
- Area
- Whole counties
County Autauga County, AL
The radar
The Birmingham radar (KBMX), 72 km from the middle of the area, began a volume at 20:21 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, 8.3 hours before the alert went out and 73 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
- 1095 J/kg
- Mixed-layer CIN
- -59 J/kg
- Mixed-layer LCL
- 581 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- 107 m²/s²
- 0-3 km storm-relative helicity
- 101 m²/s²
- Significant tornado parameter
- 0.3
- Supercell composite
- 3.3
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KBHM 072024 FFWBHM ALC001-072150- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE BIRMINGHAM AL 318 PM CDT WED JUL 7 1999 THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A... * FLASH FLOOD WARNING FOR... AUTAUGA COUNTY... IN CENTRAL ALABAMA. * UNTIL 450 PM CDT * AT 3:18 PM... NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A THUNDERSTORM WITH VERY HEAVY RAIN THROUGH CENTRAL AUTAUGA COUNTY NORTHWEST OF PRATTVILLE...THESE STORMS ARE SLOWLY DRIFTING SOUTHWEST. * THUNDERSTORMS HAVE PRODUCED NEARLY 2 INCHES OF RAIN OVER THE PAST HOUR...ADDITIONAL STORMS TO THE NORTHEAST WILL MOVE OVER AUTAUGA COUNTY OVER THE NEXT HOUR...THIS WILL PRODUCE FLOODING OF FLOOD PRONE AREAS. DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD! IF YOU PLAN TO BE OUTDOORS THIS AFTERNOON AND MOTORIST TRAVELING HOME THIS EVENING NEED TO KEEP AN EYE OUR FOR FLOOD PRONE AREAS...CHECK THE LATEST WEATHER INFORMATION AND KEEP A WEATHER EYE ON THE SKY.
What forecasters said that day
The local office's own words before this flash flood 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 7, 9:41 AM CDT, 5 hours 37 minutes before
ALZ001>050-GAZ089-090-102-120-080230- HAZARDOUS WEATHER OUTLOOK FOR NORTH/CENTRAL AL AND WEST CENTRAL GA NATIONAL WEATHER SERVICE BIRMINGHAM AL 941 AM CDT WED JUL 7 1999 A WARM AND UNSTABLE AIRMASS WILL REMAIN ACROSS ALABAMA TODAY. SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS CAN BE EXPECTED ACROSS THE AREA TODAY...ESPECIALLY DURING THE HEAT OF THE AFTERNOON. A FEW STORMS COULD GROW STRONG ENOUGH TO BRIEFLY BECOME SEVERE AND PRODUCE DAMAGING WINDS. AT THIS TIME...HOWEVER...IT IS DIFFICULT TO PINPOINT ANY SPECIFIC AREAS THAT HAVE AN ENHANCED POTENTIAL FOR SEVERE THUNDERSTORMS. ALL THUNDERSTORMS TODAY WILL LIKELY CONTAIN FREQUENT LIGHTNING STRIKES. IN ADDITION...SINCE UPPER LEVEL WINDS ARE WEAK...THE STORMS ARE EXPECTED TO MOVE SLOWLY...WHICH WILL LEAD TO A THREAT OF LOCALLY HEAVY RAINFALL. 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. FOR 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 7, 9:41 AM CDT, 5 hours 37 minutes before
ALZ001>050-GAZ089-090-102-120-080230- HAZARDOUS WEATHER OUTLOOK FOR NORTH/CENTRAL AL AND WEST CENTRAL GA NATIONAL WEATHER SERVICE BIRMINGHAM AL 941 AM CDT WED JUL 7 1999 A WARM AND UNSTABLE AIRMASS WILL REMAIN ACROSS ALABAMA TODAY. SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS CAN BE EXPECTED ACROSS THE AREA TODAY...ESPECIALLY DURING THE HEAT OF THE AFTERNOON. A FEW STORMS COULD GROW STRONG ENOUGH TO BRIEFLY BECOME SEVERE AND PRODUCE DAMAGING WINDS. AT THIS TIME...HOWEVER...IT IS DIFFICULT TO PINPOINT ANY SPECIFIC AREAS THAT HAVE AN ENHANCED POTENTIAL FOR SEVERE THUNDERSTORMS. ALL THUNDERSTORMS TODAY WILL LIKELY CONTAIN FREQUENT LIGHTNING STRIKES. IN ADDITION...SINCE UPPER LEVEL WINDS ARE WEAK...THE STORMS ARE EXPECTED TO MOVE SLOWLY...WHICH WILL LEAD TO A THREAT OF LOCALLY HEAVY RAINFALL. 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. FOR 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 6, 8:26 PM CDT | Flash Flood Warning | BMX | Colbert, Lauderdale | 2 hr |
| Jul 7, 2:30 PM CDT | Flash Flood Warning | BMX | Jefferson, Shelby | 90 min |
| Jul 7, 2:48 PM CDT | Flash Flood Warning | BMX | Coosa, Tallapoosa | 87 min |
| Jul 7, 4:46 PM CDT | Severe Thunderstorm Warning | BMX | Cleburne | 44 min |
| Jul 7, 4:54 PM CDT | Flash Flood Warning | BMX | Autauga | 61 min |
| Jul 7, 4:56 PM CDT | Severe Thunderstorm Warning | BMX | Hale, Perry | 49 min |
| Jul 7, 5:22 PM CDT | Tornado Warning | BMX | Marengo, Perry | 48 min |
| Jul 7, 6:00 PM CDT | Severe Thunderstorm Warning | BMX | Marengo, Sumter | 45 min |
| Jul 7, 6:07 PM CDT | Severe Thunderstorm Warning | BMX | Calhoun | 48 min |
| Jul 7, 6:11 PM CDT | Severe Thunderstorm Warning | BMX | Fayette, Walker | 49 min |
| Jul 7, 6:17 PM CDT | Severe Thunderstorm Warning | BMX | DeKalb | 48 min |
| Jul 7, 6:57 PM CDT | Severe Thunderstorm Warning | BMX | Jackson | 48 min |
Nearby
Flash Flood Warnings in Alabama, 1999Every flash flood 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.