Alert archive / Alabama / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 27, NWS Birmingham, AL

January 9, 2000Chilton County, Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at Jan 9, 2000, 10:23 PM CST for Chilton County, Alabama. It was in force for 47 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
Jan 9, 2000, 10:23 PM CST (04:23 UTC)
Expired
Jan 9, 2000, 11:10 PM CST
In force
47 min
Issued by
NWS Birmingham, AL
Area
Whole counties

County Chilton County, AL

The watch it was issued in

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

IssuedProductOfficeLasted
Jan 9, 10:00 PM CSTTornado WatchSPC6 hr

The nearest sounding before it

Birmingham, AL (KBMX), launched 00:00Z, 4.4 hours before the alert went out and 37 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 2000-01-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 395 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 00:00Z on 2000-01-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 127 square meters per square second.1939587897117136Sfc1 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
395 J/kg
Mixed-layer CIN
-21 J/kg
Mixed-layer LCL
700 m above ground
0-6 km bulk shear
55 kt
0-1 km storm-relative helicity
127 m²/s²
0-3 km storm-relative helicity
162 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KBHM 100424
SVRBHM
ALC021-100510-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BIRMINGHAM AL
1023 PM CST SUN JAN 9 2000

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

* SEVERE THUNDERSTORM WARNING FOR...
  CHILTON COUNTY...IN CENTRAL ALABAMA...

* UNTIL 1110 PM CST.

* AT 1021 PM CST... WEATHER RADAR SHOWED A SEVERE THUNDERSTORM OVER
EASTERN PERRY COUNTY NEAR PERRYVILLE.


* THE SEVERE THUNDERSTORM WAS MOVING NORTHEAST AT 40 MPH AND WILL
MOVE ACROSS CHILTON COUNTY THROUGH 1110 PM.

GO INSIDE A STURDY BUILDING...AND STAY AWAY FROM WINDOWS! A TORNADO
WATCH IS IN EFFECT. SEVERE THUNDERSTORMS CAN...AND OCCASIONALLY DO
PRODUCE TORNADOES WITH LIT>TLE...OR NO ADVANCE WARNING.

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 9, 9:35 PM CSTSevere Thunderstorm WarningBMXPerry40 min
Jan 9, 10:11 PM CSTSevere Thunderstorm WarningBMXPerry34 min
Jan 9, 10:13 PM CSTSevere Thunderstorm WarningBMXJefferson47 min
Jan 9, 11:03 PM CSTSevere Thunderstorm WarningBMXCoosa47 min
Jan 9, 11:10 PM CSTSevere Thunderstorm WarningBMXTalladega50 min
Jan 9, 11:19 PM CSTSevere Thunderstorm WarningBMXClay46 min
Jan 9, 11:29 PM CSTSevere Thunderstorm WarningBMXDallas46 min
Jan 9, 11:46 PM CSTSevere Thunderstorm WarningBMXRandolph49 min
Jan 9, 11:50 PM CSTTornado WarningBMXClay, Randolph50 min
Jan 10, 2:16 AM CSTSevere Thunderstorm WarningBMXPike49 min
Jan 10, 2:23 AM CSTSevere Thunderstorm WarningBMXBullock62 min
Jan 10, 2:49 AM CSTSevere Thunderstorm WarningBMXBarbour, Lee, Russell61 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; the sounding from the Mesonet's radiosonde archive.