Alert archive / Alabama / Severe Thunderstorm Warnings in 2006
Severe Thunderstorm Warning 247, NWS Birmingham, AL
NWS Birmingham, AL issued this severe thunderstorm warning at Jun 21, 2006, 5:46 PM CDT for Chilton County, Shelby County, Alabama. It was in force for 29 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
- Jun 21, 2006, 5:46 PM CDT (22:46 UTC)
- Expired
- Jun 21, 2006, 6:15 PM CDT
- In force
- 29 min
- Issued by
- NWS Birmingham, AL
- Area
- Counties, with a storm outline in the text
Counties Chilton County, AL, Shelby County, AL
The radar
The Birmingham radar (KBMX), 15 km from the middle of the area, began a volume at 22:47 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, 10.8 hours before the alert went out and 16 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
- 928 J/kg
- Mixed-layer CIN
- -106 J/kg
- Mixed-layer LCL
- 1564 m above ground
- 0-6 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- -12 m²/s²
- 0-3 km storm-relative helicity
- -6 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 Jun 21, 3:16 PM CDT, 2 hours 30 minutes earlier.
Area forecast discussion, Jun 21, 3:16 PM CDT, 2 hours 30 minutes before
AREA FORECAST DISCUSSION...CORRECTED NATIONAL WEATHER SERVICE BIRMINGHAM AL 316 PM CDT WED JUN 21 2006 .SHORT TERM...(TONIGHT - FRIDAY NIGHT) QUICKLY APPROACHING 100 DEGREES THIS AFTERNOON FOR SEVERAL AREAS IN CENTRAL ALABAMA...IN FACT, BHM HAS OFFICIALLY REACHED THE CENTURY MARK. A FEW ISOLATED THUNDERSTORMS OFFERING SOME RELIEF BUT NOT MUCH COVERAGE WISE. CENTER OF UPPER LEVEL RIDGE WILL SLOWLY EASE EASTWARD TOMORROW...TEMPERATURES WILL STILL CLIMB INTO THE MID 90S WITH ISOLATED THUNDERSTORMS. BY FRIDAY...THE UPPER RIDGE OVER THE SOUTHEAST BEGINS TO BREAK DOWN AS AN EASTERN CONUS TROF STARTS SHAPING UP. BETTER MOISTURE AND WEAKENING RIDGE SHOULD ALLOW FOR SCATTERED THUNDERSTORMS OVER THE NORTH AND AT LEAST ISOLATED CHANCES OVER THE SOUTH...ON FRIDAY...PERHAPS LINGERING INTO THE EVENING HOURS. .LONG TERM...(SATURDAY - WEDNESDAY) AS UPPER TROF BECOMES MORE ESTABLISHED ON SATURDAY...IT WILL PUSH A WEAK SURFACE BOUNDARY INTO THE AREA AND ENHANCE THE CHANCE FOR AFTERNOON AND EVENING THUNDERSTORMS FOR SEVERAL DAYS. WITH INCREASED MOISTURE...TEMPERATURES WILL BE MUCH MORE TOLERABLE. SOME NOTICEABLE MODEL DIFFERENCES IN THE EVOLUTION OF THE TROF BY NEXT TUESDAY AND WEDNESDAY...BUT AT LEAST ISOLATED POPS ARE WARRANTED WITH NEAR AVERAGE TEMPERATURES. && .AVIATION...DISCUSSION FOR 18Z TAFS... VFR CONDITIONS WILL BE EXPECTED FOR ALL TAF SITES IN THE 18Z PACKAGE. MID LEVEL RIDGE ANCHORED ACROSS THE REGION THROUGH THE NEXT 24 HOURS. MOST CONVECTION WILL BE INHIBITED...BUT ISOLATED THUNDERSTORMS WILL BE AROUND CENTRAL ALABAMA. THE CHANCES THAT ANY TERMINAL WILL BE AFFECTED ARE SLIM AND WILL NOT BE MENTIONED AT THIS TIME. CUMULUS FIELD WILL BE DEVELOPED BY AROUND THE 18Z ISSUANCE TIME...WITH INITIAL DEVELOPMENT AROUND 3500FT. THE CLOUDS WILL LIFT TO 6K OR 7K FEET BY 21Z. SURFACE DEW POINT DEPRESSIONS OVERNIGHT WILL NOT BE CONDUCIVE TO FOG DEVELOPMENT. WINDS WILL GENERALLY BE LIGHT AT 6 KNOTS OR LESS. && .FIRE WEATHER... SIMILAR CONCERNS JUST 24 HOURS LATER. KBDI VALUES INTO THE CRITICAL RANGE...MINIMUM AFTERNOON RELATIVE HUMIDITY VALUES INTO THE 30S...AND DRY ANTECEDENT SOIL CONDITIONS. WILL STICK WITH THE IDEA THAT WINDS WILL BE THE LIMITED FACTOR...AS LIGHT WINDS OF 6 KNOTS OR LESS EXPECTED DURING SUNLIGHT HOURS. CAUTION SHOULD BE EXERCISED DURING OUTDOOR BURNING ACTIVITIES. && BMX WATCHES/WARNINGS/ADVISORIES... AL...NONE. && .PRELIMINARY POINT TEMPS/POPS... GADSDEN 67 95 71 90 / 20 20 20 30 ANNISTON 70 96 71 91 / 20 20 20 30 BIRMINGHAM 72 95 74 90 / 20 20 20 30 TUSCALOOSA 72 96 71 92 / 20 20 20 30 CALERA 73 95 73 91 / 20 20 20 30 AUBURN 73 93 72 91 / 20 20 20 20 MONTGOMERY 72 95 72 93 / 20 20 20 20 TROY 70 93 71 93 / 20 20 20 20 && .BMX WATCHES/WARNINGS/ADVISORIES... AL...NONE. && 88/88/75
Hazardous weather outlook, Jun 21, 1:30 PM CDT, 4 hours 16 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE BIRMINGHAM AL 130 PM CDT WED JUN 21 2006 ALZ011>015-017>050-221835- AUTAUGA-BARBOUR-BIBB-BLOUNT-BULLOCK-CALHOUN-CHAMBERS-CHEROKEE- CHILTON-CLAY-CLEBURNE-COOSA-DALLAS-ELMORE-ETOWAH-FAYETTE-GREENE-HALE- JEFFERSON-LAMAR-LEE-LOWNDES-MACON-MARENGO-MARION-MONTGOMERY-PERRY- PICKENS-PIKE-RANDOLPH-RUSSELL-SHELBY-ST CLAIR-SUMTER-TALLADEGA- TALLAPOOSA-TUSCALOOSA-WALKER-WINSTON- 130 PM CDT WED JUN 21 2006 THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE COUNTIES SERVED BY THE NATIONAL WEATHER SERVICE OFFICE IN BIRMINGHAM. .DAY ONE...THIS AFTERNOON AND TONIGHT. ISOLATED STRONG THUNDERSTORMS WILL DEVELOP DURING THE AFTERNOON AND EARLY EVENING HOURS. THESE STORMS WILL BE CAPABLE OF PRODUCING WIND GUSTS OF 35 TO 45 MPH AND SMALL HAIL. ONE OR TWO STORMS MAY GROW LARGE ENOUGH TO BECOME SEVERE...PRODUCING WINDS UP TO 60 MPH AND HAIL TO THE SIZE OF NICKELS. WET MICROBURST POTENTIAL: BIRMINGHAM...HIGH. MONTGOMERY...HIGH. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... ACTIVATION OF STORM SPOTTERS AND EMERGENCY MANAGEMENT PERSONNEL IS NOT EXPECTED AT THIS TIME. JONES/90
In the hours before
Special weather statement, Jun 21, 3:45 PM CDT, 2 hours 1 minute before
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</html>The office that day
Everything else NWS Birmingham, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 21, 6:38 PM CDT | Flash Flood Warning | BMX | Jefferson | 82 min |
Nearby
Severe Thunderstorm Warnings in Alabama, 2006Every severe thunderstorm warning in 2006
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.