Alert archive / Alabama / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 366, NWS Birmingham, AL

July 23, 2000Calhoun County, Clay County, Cleburne County, Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at Jul 23, 2000, 5:56 PM CDT for Calhoun County, Clay County, Cleburne County, Alabama. It was in force for 34 min. 2 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Jul 23, 2000, 5:56 PM CDT (22:56 UTC)
Expired
Jul 23, 2000, 6:30 PM CDT
In force
34 min
Issued by
NWS Birmingham, AL
Area
Whole counties

Counties Calhoun County, AL, Clay County, AL, Cleburne County, AL

What was reported inside it

TimeReportWhereRemark
Jul 23, 6:24 PM CDTHail 0.88Delta, AL
Jul 23, 6:24 PM CDTThunderstorm Wind 50 EDelta, AL

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The nearest sounding before it

Birmingham, AL (KBMX), launched 12:00Z, 10.9 hours before the alert went out and 106 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 2000-07-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 174 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Birmingham, AL at 12:00Z on 2000-07-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 71 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
174 J/kg
Mixed-layer CIN
-159 J/kg
Mixed-layer LCL
1587 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
71 m²/s²
0-3 km storm-relative helicity
94 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.1

Open this sounding in Storm Lab

The text

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

000 
WUUS54 KBMX 232257
SVRBHM
ALC015-027-029-232330-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BIRMINGHAM AL
556 PM CDT SUN JUL 23 2000

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A...

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN CALHOUN COUNTY IN ALABAMA...
  NORTHERN CLAY COUNTY IN ALABAMA...
  CLEBURNE COUNTY IN ALABAMA...

* UNTIL 630 PM CDT.

* AT 556 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  SEVERE THUNDERSTORMS ALONG A LINE EXTENDING FROM FORT MCCLELLAN TO
  4 MILES SOUTHEAST OF OXFORD...MOVING EAST AT 20 MPH.

* SOME LOCATIONS IN OR NEAR THE PATH OF THESE STORMS INCLUDE...WEST
  END-COBB TOWN...WEAVER...SA~KS...OXFORD...HOBSON CITY...HEFLIN...
  FORT MCCLELLAN...EDWARDSVILLE...BLUE MOUNTAIN AND ANNISTON.

NNNN

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 23, 11:58 AM CDTSevere Thunderstorm WarningBMXDeKalb47 min
Jul 23, 1:16 PM CDTSevere Thunderstorm WarningBMXRussell44 min
Jul 23, 1:56 PM CDTSevere Thunderstorm WarningBMXLee49 min
Jul 23, 6:22 PM CDTSevere Thunderstorm WarningBMXRandolph38 min
Jul 23, 6:48 PM CDTTornado WarningBMXRandolph27 min

Nearby

Severe Thunderstorm Warnings in Alabama, 2000Every severe thunderstorm warning 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.