Alert archive / Alabama / Tornado Warnings in 2000

Tornado Warning 105, NWS Birmingham, AL

May 20, 2000Cleburne County, Alabama

NWS Birmingham, AL issued this tornado warning at May 20, 2000, 6:39 PM CDT for Cleburne County, Alabama. It was in force for 51 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
May 20, 2000, 6:39 PM CDT (23:39 UTC)
Expired
May 20, 2000, 7:30 PM CDT
In force
51 min
Issued by
NWS Birmingham, AL
Area
Whole counties

County Cleburne County, AL

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 11.7 hours before the alert went out and 100 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, Peachtre/Fal Fld, GA at 12:00Z on 2000-05-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 143 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, Peachtre/Fal Fld, GA at 12:00Z on 2000-05-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 34 square meters per square second.193958Sfc1 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
143 J/kg
Mixed-layer CIN
-91 J/kg
Mixed-layer LCL
905 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
34 m²/s²
0-3 km storm-relative helicity
3 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.

780 
WFUS54 KBMX 202341
TORBHM
ALC029-210030-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE BIRMINGHAM AL
639 PM CDT SAT MAY 20 2000

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A

* TORNADO WARNING FOR...
  CLEBURNE COUNTY IN NORTHEAST ALABAMA...

* UNTIL 730 PM CDT.

* AT 639 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO OVER
  SOUTHWESTERN CLEBURNE COUNTY...MOVING EAST AT 25 MPH.

* THE STORM WILL MOVE ACROSS MAINLY THE SOUTHERN PART OF CLEBURNE COUNTY...
  NEAR AND JUST SOUTH OF INTERSTATE 20.

THIS WARNING UPGRADES THE PREVIOUS SEVERE THUNDERSTORM WARNING FOR
CLEBURNE COUNTY.

IF YOU ARE NEAR THE PATH OF THIS STORM...TAKE COVER NOW MOVE TO AN
INTERIOR ROOM ON THE LOWEST FLOOR. ABANDON MOBILE HOMES AND VEHICLES
FOR MORE SUBSTANTIAL SHELTER. AVOID WINDOWS

The office that day

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

IssuedProductOfficeCountiesLasted
May 20, 5:13 PM CDTSevere Thunderstorm WarningBMXCullman47 min
May 20, 5:22 PM CDTSevere Thunderstorm WarningBMXPickens23 min
May 20, 5:26 PM CDTTornado WarningBMXCullman49 min
May 20, 5:37 PM CDTSevere Thunderstorm WarningBMXMarshall68 min
May 20, 5:47 PM CDTSevere Thunderstorm WarningBMXPickens43 min
May 20, 6:04 PM CDTTornado WarningBMXBlount26 min
May 20, 6:27 PM CDTSevere Thunderstorm WarningBMXCleburne48 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.