Alert archive / Alabama / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 7, NWS Birmingham, AL

January 29, 2001Sumter County, Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at Jan 29, 2001, 1:44 PM CST for Sumter County, Alabama. It was in force for 46 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.

The facts

Issued
Jan 29, 2001, 1:44 PM CST (19:44 UTC)
Expired
Jan 29, 2001, 2:30 PM CST
In force
46 min
Issued by
NWS Birmingham, AL
Area
Whole counties; the outline is the Mesonet’s reconstruction

County Sumter County, AL

The watch it was issued in

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

IssuedProductOfficeLasted
Jan 29, 11:30 AM CSTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 7.7 hours before the alert went out and 158 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, Jackson, MS at 12:00Z on 2001-01-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 9 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, Jackson, MS at 12:00Z on 2001-01-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 190 square meters per square second.1939587897Sfc1 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
9 J/kg
Mixed-layer CIN
-166 J/kg
Mixed-layer LCL
723 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
190 m²/s²
0-3 km storm-relative helicity
301 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 
WUUS54 KBMX 291945
SVRBHM
ALC119-292030-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BIRMINGHAM AL
144 PM CST MON JAN 29 2001

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SUMTER COUNTY IN WEST CENTRAL ALABAMA

* UNTIL 230 PM CST

* AT 142 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 17 MILES WEST OF YORK...MOVING EAST AT 55 MPH.

* LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...LIVINGSTON.

STRONG DAMAGING WIND IS LIKELY WITH THIS STORM. TAKE COVER NOW. FIND
SUBSTANTIAL SHELTER. AVOID WINDOWS...VEHICLES AND MOBILE HOMES.

THESE STORMS HAVE HAD A HISTORY OF PRODUCING DAMAGING WINDS...MAINLY 
IN THE FORM OF DOWNED TREES...OVER MISSISSIPPI.

LAT...LON 3253 8873 3235 8864 3235 8838 3253 8797
          3291 8817 3291 8833

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 29, 2:03 PM CSTSevere Thunderstorm WarningBMXPickens42 min
Jan 29, 2:38 PM CSTSevere Thunderstorm WarningBMXGreene37 min
Jan 29, 2:54 PM CSTSevere Thunderstorm WarningBMXTuscaloosa66 min
Jan 29, 2:55 PM CSTSevere Thunderstorm WarningBMXHale50 min
Jan 29, 3:34 PM CSTSevere Thunderstorm WarningBMXBibb, Perry56 min
Jan 29, 3:57 PM CSTSevere Thunderstorm WarningBMXJefferson63 min
Jan 29, 4:26 PM CSTSevere Thunderstorm WarningBMXDallas49 min
Jan 29, 4:30 PM CSTSevere Thunderstorm WarningBMXShelby30 min
Jan 29, 4:33 PM CSTSevere Thunderstorm WarningBMXChilton42 min

Nearby

Severe Thunderstorm Warnings in Alabama, 2001Every severe thunderstorm warning in 2001

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.