Alert archive / Alabama / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 82, NWS Mobile, AL

April 3, 2001Monroe County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at Apr 3, 2001, 9:40 PM CDT for Monroe County, Alabama. It was in force for 35 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
Apr 3, 2001, 9:40 PM CDT (02:40 UTC)
Expired
Apr 3, 2001, 10:15 PM CDT
In force
35 min
Issued by
NWS Mobile, AL
Area
Whole counties; the outline is the Mesonet’s reconstruction

County Monroe County, AL

The watch it was issued in

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

IssuedProductOfficeLasted
Apr 3, 7:30 PM CDTSevere Thunderstorm WatchSPC4 hr

The nearest sounding before it

Birmingham, AL (KBMX), launched 00:00Z, 2.7 hours before the alert went out and 217 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 2001-04-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1 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 2001-04-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 216 square meters per square second.19395878Sfc1 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
1 J/kg
Mixed-layer CIN
-239 J/kg
Mixed-layer LCL
547 m above ground
0-6 km bulk shear
65 kt
0-1 km storm-relative helicity
216 m²/s²
0-3 km storm-relative helicity
292 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.7

Open this sounding in Storm Lab

The text

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

000 
WUUS54 KMOB 040241
SVRMOB

ALC099-040315-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
940 PM CDT TUE APR 3 2001

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  MONROE COUNTY IN SOUTHWEST ALABAMA

* UNTIL 1015 PM CDT

* AT 940 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 4 MILES SOUTH OF HOMEWOOD...MOVING SOUTHEAST AT
  25 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  URIAH BY 945 PM CDT

STRONG DAMAGING WIND AND LARGE HAIL ARE LIKELY WITH THIS STORM. 
HEAVY RAIN WILL BRING THE POTENTIAL FOR LOCALIZED FLOODING. IF IN 
THE PATH OF THIS STORM...TAKE COVER IN A STURDY SHELTER UNTIL THE 
STORM HAS PASSED.

LAT...LON 3143 8764 3133 8774 3126 8758 3131 8740

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 3, 7:08 PM CDTSevere Thunderstorm WarningMOBChoctaw17 min
Apr 3, 7:22 PM CDTSevere Thunderstorm WarningMOBWashington23 min
Apr 3, 9:31 PM CDTFlash Flood WarningMOBClarke, Washington89 min
Apr 4, 6:50 AM CDTSevere Thunderstorm WarningMOBClarke, Marengo25 min
Apr 4, 7:50 AM CDTFlash Flood WarningMOBMarengo85 min
Apr 4, 8:15 AM CDTFlash Flood WarningMOBChoctaw90 min
Apr 4, 8:58 AM CDTSevere Thunderstorm WarningMOBWashington32 min
Apr 4, 9:01 AM CDTSevere Thunderstorm WarningMOBButler19 min
Apr 4, 9:30 AM CDTSevere Thunderstorm WarningMOBWashington30 min
Apr 4, 9:45 AM CDTFlash Flood WarningMOBChoctaw90 min
Apr 4, 12:36 PM CDTSevere Thunderstorm WarningMOBEscambia24 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.