Alert archive / Alabama / Tornado Warnings in 2000

Tornado Warning 101, NWS Birmingham, AL

April 27, 2000Blount County, Alabama

NWS Birmingham, AL issued this tornado warning at Apr 27, 2000, 8:43 PM CDT for Blount County, Alabama. It was in force for 32 min. 1 report 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
Apr 27, 2000, 8:43 PM CDT (01:43 UTC)
Expired
Apr 27, 2000, 9:15 PM CDT
In force
32 min
Issued by
NWS Birmingham, AL
Area
Whole counties

County Blount County, AL

The radar

The Birmingham radar (KBMX), 92 km from the middle of the area, began a volume at 01:47 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.

What was reported inside it

TimeReportWhereRemark
Apr 27, 9:10 PM CDTThunderstorm Wind 60 EOneonta, ALA roof was blown off a mobile home on Jones Chapel Loop in southeastern Blount County.

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 00:00Z, 1.7 hours before the alert went out and 91 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 00:00Z on 2000-04-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 00:00Z on 2000-04-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 182 square meters per square second.1939587897117136156Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1921 m above ground
0-6 km bulk shear
82 kt
0-1 km storm-relative helicity
182 m²/s²
0-3 km storm-relative helicity
241 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.

684 
WFUS54 KBMX 280143
TORBHM
ALC009-280215-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE BIRMINGHAM AL
843 PM CDT THU APR 27 2000

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A

* TORNADO WARNING FOR...
  BLOUNT COUNTY IN CENTRAL ALABAMA...

* UNTIL 915 PM CDT.

* AT 843 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  DEVELOPING TORNADO OVER CLEVELAND...MOVING EAST AT 45 MPH.

* SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...  SUSAN
  MOORE...SNEAD...ONEONTA...CLEVELAND AND BLOUNTSVILLE.

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 27, 7:00 PM CDTSevere Thunderstorm WarningBMXColbert, Franklin30 min
Apr 27, 7:03 PM CDTSevere Thunderstorm WarningBMXMorgan27 min
Apr 27, 7:07 PM CDTSevere Thunderstorm WarningBMXCullman53 min
Apr 27, 7:11 PM CDTTornado WarningBMXCullman49 min
Apr 27, 7:26 PM CDTSevere Thunderstorm WarningBMXFranklin, Marion64 min
Apr 27, 7:29 PM CDTSevere Thunderstorm WarningBMXLimestone, Morgan31 min
Apr 27, 7:39 PM CDTSevere Thunderstorm WarningBMXWinston51 min
Apr 27, 7:43 PM CDTSevere Thunderstorm WarningBMXMarshall47 min
Apr 27, 7:50 PM CDTSevere Thunderstorm WarningBMXCherokee, DeKalb25 min
Apr 27, 8:01 PM CDTSevere Thunderstorm WarningBMXWalker44 min
Apr 27, 8:06 PM CDTSevere Thunderstorm WarningBMXFayette39 min
Apr 27, 8:18 PM CDTSevere Thunderstorm WarningBMXBlount, Cullman57 min
Apr 27, 8:46 PM CDTSevere Thunderstorm WarningBMXJefferson, Walker44 min
Apr 27, 9:10 PM CDTSevere Thunderstorm WarningBMXSt. Clair35 min
Apr 27, 9:19 PM CDTSevere Thunderstorm WarningBMXShelby26 min
Apr 27, 9:29 PM CDTSevere Thunderstorm WarningBMXCalhoun, Talladega46 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.