Alert archive / Alabama / Tornado Warnings in 2000

Tornado Warning 106, NWS Birmingham, AL

July 20, 2000Shelby County, Alabama

NWS Birmingham, AL issued this tornado warning at Jul 20, 2000, 6:17 PM CDT for Shelby County, Alabama. It was in force for 28 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 20, 2000, 6:17 PM CDT (23:17 UTC)
Expired
Jul 20, 2000, 6:45 PM CDT
In force
28 min
Issued by
NWS Birmingham, AL
Area
Whole counties

County Shelby County, AL

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jul 20, 4:00 PM CDTSevere Thunderstorm WatchSPC4 hr

The nearest sounding before it

Birmingham, AL (KBMX), launched 12:00Z, 11.3 hours before the alert went out and 14 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.

Skew-T log-pSkew-T log-p diagram, Birmingham, AL at 12:00Z on 2000-07-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 230 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Birmingham, AL at 12:00Z on 2000-07-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -5 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
230 J/kg
Mixed-layer CIN
-323 J/kg
Mixed-layer LCL
1462 m above ground
0-6 km bulk shear
12 kt
0-1 km storm-relative helicity
-5 m²/s²
0-3 km storm-relative helicity
1 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WFUS54 KBMX 202317
TORBHM
ALC117-202345-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE BIRMINGHAM AL
617 PM CDT THU JUL 20 2000

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A

* TORNADO WARNING FOR...
  SHELBY COUNTY IN ALABAMA...

* UNTIL 645 PM CDT.

* AT 617 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  DEVELOPING TORNADO 5 MILES NORTHWEST OF COLUMBIANA...MOVING
  SOUTHEAST AT 30 MPH.

* SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE... 
  VINCENT...HARPERSVILLE...COLUMBIANA AND CHELSEA.

THIS IS AN EXTREMELY DANGEROUS AND LIFE THREATENING TORNADO. EVACUATE
MOBILE HOMES...GO TO A STURDY BUILDING. MOVE TO AN INTERIOR R8OOM ON
THE LOWEST FLOOR. STAY AWAY FROM WINDOWS.

The office that day

Everything else NWS Birmingham, AL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 20, 2:40 PM CDTSevere Thunderstorm WarningBMXSumter35 min
Jul 20, 3:18 PM CDTSevere Thunderstorm WarningBMXSumter27 min
Jul 20, 3:40 PM CDTSevere Thunderstorm WarningBMXGreene, Hale50 min
Jul 20, 3:40 PM CDTSevere Thunderstorm WarningBMXColbert, Lauderdale35 min
Jul 20, 3:53 PM CDTSevere Thunderstorm WarningBMXPickens, Sumter52 min
Jul 20, 4:05 PM CDTSevere Thunderstorm WarningBMXColbert, Lauderdale40 min
Jul 20, 4:17 PM CDTSevere Thunderstorm WarningBMXLawrence43 min
Jul 20, 4:28 PM CDTSevere Thunderstorm WarningBMXTuscaloosa32 min
Jul 20, 4:29 PM CDTSevere Thunderstorm WarningBMXLamar46 min
Jul 20, 4:31 PM CDTSevere Thunderstorm WarningBMXMarion44 min
Jul 20, 4:35 PM CDTSevere Thunderstorm WarningBMXLimestone40 min
Jul 20, 4:43 PM CDTSevere Thunderstorm WarningBMXMorgan32 min
Jul 20, 4:48 PM CDTSevere Thunderstorm WarningBMXPickens42 min
Jul 20, 4:55 PM CDTSevere Thunderstorm WarningBMXMadison50 min
Jul 20, 4:55 PM CDTSevere Thunderstorm WarningBMXTuscaloosa35 min
Jul 20, 4:57 PM CDTSevere Thunderstorm WarningBMXCullman48 min
Jul 20, 5:00 PM CDTSevere Thunderstorm WarningBMXChilton, Dallas, Perry30 min
Jul 20, 5:01 PM CDTSevere Thunderstorm WarningBMXElmore, Montgomery29 min
Jul 20, 5:02 PM CDTSevere Thunderstorm WarningBMXWinston43 min
Jul 20, 5:09 PM CDTSevere Thunderstorm WarningBMXFayette36 min
Jul 20, 5:12 PM CDTSevere Thunderstorm WarningBMXJackson, Marshall48 min
Jul 20, 5:15 PM CDTSevere Thunderstorm WarningBMXWalker45 min
Jul 20, 5:18 PM CDTSevere Thunderstorm WarningBMXBibb, Jefferson57 min
Jul 20, 5:24 PM CDTSevere Thunderstorm WarningBMXBlount51 min
Jul 20, 5:28 PM CDTSevere Thunderstorm WarningBMXMorgan17 min
Jul 20, 5:28 PM CDTSevere Thunderstorm WarningBMXTuscaloosa32 min
Jul 20, 5:29 PM CDTSevere Thunderstorm WarningBMXChilton, Dallas, Perry31 min
Jul 20, 5:31 PM CDTSevere Thunderstorm WarningBMXShelby44 min
Jul 20, 5:38 PM CDTSevere Thunderstorm WarningBMXElmore, Macon37 min
Jul 20, 5:38 PM CDTSevere Thunderstorm WarningBMXCullman37 min
Jul 20, 5:45 PM CDTSevere Thunderstorm WarningBMXJackson, Marshall45 min
Jul 20, 5:51 PM CDTSevere Thunderstorm WarningBMXDeKalb54 min
Jul 20, 6:00 PM CDTSevere Thunderstorm WarningBMXEtowah45 min
Jul 20, 6:05 PM CDTSevere Thunderstorm WarningBMXShelby40 min
Jul 20, 6:08 PM CDTSevere Thunderstorm WarningBMXAutauga, Elmore, Montgomery52 min
Jul 20, 6:08 PM CDTSevere Thunderstorm WarningBMXJefferson37 min
Jul 20, 6:10 PM CDTSevere Thunderstorm WarningBMXChilton50 min
Jul 20, 6:11 PM CDTSevere Thunderstorm WarningBMXSt. Clair49 min
Jul 20, 6:12 PM CDTSevere Thunderstorm WarningBMXTalladega48 min
Jul 20, 6:20 PM CDTSevere Thunderstorm WarningBMXCherokee40 min
Jul 20, 6:23 PM CDTFlash Flood WarningBMXJefferson3 hr
Jul 20, 6:24 PM CDTSevere Thunderstorm WarningBMXCalhoun51 min
Jul 20, 6:32 PM CDTSevere Thunderstorm WarningBMXCoosa43 min
Jul 20, 6:37 PM CDTSevere Thunderstorm WarningBMXClay38 min
Jul 20, 6:41 PM CDTSevere Thunderstorm WarningBMXCleburne49 min
Jul 20, 6:50 PM CDTSevere Thunderstorm WarningBMXTallapoosa40 min
Jul 20, 6:52 PM CDTSevere Thunderstorm WarningBMXElmore, Montgomery38 min
Jul 20, 6:54 PM CDTSevere Thunderstorm WarningBMXTalladega21 min

Nearby

Tornado Warnings in Alabama, 2000Every tornado warning in 2000Tornadoes in 2000

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.