Alert archive / Alabama / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 115, NWS Birmingham, AL
NWS Birmingham, AL issued this severe thunderstorm warning at May 11, 2001, 3:30 PM CDT for Barbour County, Bullock County, Russell County, Alabama. It was in force for 30 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.
The facts
- Issued
- May 11, 2001, 3:30 PM CDT (20:30 UTC)
- Expired
- May 11, 2001, 4:00 PM CDT
- In force
- 30 min
- Issued by
- NWS Birmingham, AL
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
Counties Barbour County, AL, Bullock County, AL, Russell County, AL
The nearest sounding before it
Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 8.5 hours before the alert went out and 168 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
- 57 J/kg
- Mixed-layer CIN
- -94 J/kg
- Mixed-layer LCL
- 1115 m above ground
- 0-6 km bulk shear
- 13 kt
- 0-1 km storm-relative helicity
- -27 m²/s²
- 0-3 km storm-relative helicity
- 1 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS54 KBMX 112031 SVRBHM ALC005-011-113-112100- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE BIRMINGHAM AL 330 PM CDT FRI MAY 11 2001 THE NATIONAL WEATHER SERVICE HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHERN BARBOUR COUNTY IN ALABAMA BULLOCK COUNTY IN ALABAMA WESTERN RUSSELL COUNTY IN ALABAMA * UNTIL 400 PM CDT * AT 324 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 11 MILES SOUTH OF HURTSBORO...MOVING NORTH AT 10 MPH. HAIL TO THE SIZE OF QUARTERS CAN BE EXPECTED WITH THIS STORM. IF YOU ARE IN THE PATH OF THE STORM MOVE TO A STURDY SHELTER. STRONG DAMAGING WIND IS LIKELY WITH TH(IS STORM. TAKE COVER NOW. FIND SUBSTANTIAL SHELTER. AVOID WINDOWS...VEHICLES AND MOBILE HOMES. LAT...LON 3200 8553 3203 8532 3227 8527 3221 8571
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.
NWS Birmingham, AL wrote its last area forecast discussion before this severe thunderstorm warning went out at May 11, 2:52 PM CDT, 38 minutes earlier.
Area forecast discussion, May 11, 2:52 PM CDT, 38 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE BIRMINGHAM, AL 252 PM CDT FRI MAY 11 2001 A MOIST AND UNSTABLE AIRMASS WILL REMAIN IN PLACE OVER THE FORECAST AREA TONIGHT AND SATURDAY. SCATTERED THUNDERSTORMS WILL CONTINUE INTO THIS EVENING AND SLOWLY DIMINISH AS WE LOSE DAYTIME HEATING. THERE MAY BE MORE SHOWERS AND THUNDERSTORMS APPROACHING NORTH ALABAMA LATER TONIGHT AHEAD OF A COLD FRONT. THAT FRONT WILL MOVE INTO THE STATE SATURDAY AND PASS SOUTH OF THE AREA SATURDAY NIGHT. BOTH NGM AND AVN MOS HAVE RATHER LOW POPS AS THIS FRONT PASSES THROUGH, BUT MOIST AND UNSTABLE AIR SHOULD REMAIN OVER THE REGION UNTIL THE FRONT DRIES US OUT LATE SATURDAY AND SATURDAY NIGHT. I SEE NO REASON WHY THE CHANCE FOR PRECIPITATION SHOULD DECREASE FROM WHAT WE HAVE HAD THE PAST FEW DAYS, WITH THE SAME AIRMASS IN PLACE AND GOOD LOW LEVEL FORCING ASSOCIATED WITH THIS NEXT FRONT. I WILL CONTINUE TO GO ABOVE MOS POPS THROUGH SATURDAY. A DRY AND STABLE AIRMASS WILL OVERSPREAD THE AREA SATURDAY NIGHT AND SUNDAY. THIS WILL ALLOW FOR COOLER NIGHTTIME TEMPERATURES, BUT DAYTIME HIGHS SHOULD NOT CHANGE MUCH. HSV 062/077 051/078 4400 BHM 062/081 051/080 25-0 MGM 062/084 05Z6/082 3520 .BHM...NONE.
In the hours before
Special weather statement, May 11, 1:30 PM CDT, 2 hours before
ALZ001>038-040>050-112200- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE BIRMINGHAM AL 130 PM CDT FRI MAY 11 2001 HAZARDOUS WEATHER OUTLOOK FOR NORTH AND CENTRAL ALABAMA. A WEAK UPPER LEVEL DISTURBANCE IS MOVING ACROSS THE THE TENNESSEE VALLEY AREA...MEANWHILE...THE ATMOSPHERE ACROSS THE AREA CONTINUES TO BE MOIST...AND UNSTABLE. THIS COMBINATION HAS PRODUCED SCATTERED SHOWERS AND THUNDERSTORMS ACROSS PORTIONS OF NORTH AND CENTRAL ALABAMA...MAINLY NORTH AND EAST OF A MUSCLE SHOALS...TO BIRMINGHAM...TO PRATTVILLE LINE. SCATTERED SHOWERS AND THUNDERSTORMS...WILL BE POSSIBLE THROUGH THIS EVENING OVER THE ENTIRE FORECAST AREA. A FEW STORMS COULD BECOME RATHER STRONG... HOWEVER...THEY SHOULD REMAIN BELOW SEVERE LIMITS. THE THREAT OF SHOWERS AND THUNDERSTORMS WILL CONTINUE OVERNIGHT... AS A COLD FRONT IS EXPECTED TO MOVE OVER THE NORTHERN SECTIONS OF ALABAMA DURING THE EARLY MORNING HOURS SATURDAY. THE COLD FRONT IS EXPECTED TO MOVE ACROSS THE AREA THROUGH SATURDAY EVENING. ACTIVATION OF STORM SPOTTERS AND EMERGENCY MANAGEMENT PERSONNEL WILL NOT BE NECESSARY THIS AFTERNOON OR TONIGHT.
The office that day
Everything else NWS Birmingham, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 11, 12:37 PM CDT | Severe Thunderstorm Warning | BMX | Autauga | 23 min |
| May 11, 2:12 PM CDT | Severe Thunderstorm Warning | BMX | Chambers | 33 min |
| May 11, 2:21 PM CDT | Severe Thunderstorm Warning | BMX | Lee, Macon, Tallapoosa | 24 min |
| May 11, 2:57 PM CDT | Severe Thunderstorm Warning | BMX | Coosa, Tallapoosa | 33 min |
| May 11, 3:46 PM CDT | Severe Thunderstorm Warning | BMX | Macon | 14 min |
| May 11, 4:09 PM CDT | Severe Thunderstorm Warning | BMX | Bullock | 36 min |
| May 11, 4:11 PM CDT | Severe Thunderstorm Warning | BMX | Madison | 34 min |
Nearby
Severe Thunderstorm Warnings in Alabama, 2001Every severe thunderstorm warning in 2001
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.