Alert archive / Alabama / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 69, NWS Mobile, AL

March 12, 2001Butler County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at Mar 12, 2001, 12:49 PM CST for Butler County, Alabama. It was in force for 41 min. 1 report came from 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, with what was reported inside it.

The facts

Issued
Mar 12, 2001, 12:49 PM CST (18:49 UTC)
Expired
Mar 12, 2001, 1:30 PM CST
In force
41 min
Issued by
NWS Mobile, AL
Area
Whole counties; the outline is the Mesonet’s reconstruction

County Butler County, AL

What was reported inside it

TimeReportWhereRemark
Mar 12, 1:05 PM CSTThunderstorm Wind 65 EOaky Streak, ALHigh winds from a line of thunderstorms that had moved out of Covington county, blew down several hundred mature pine trees. The damage was along County Road 59 south of Oaky Streak. The "Bow Echo" that caused the high winds then weakened as it moved east

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 watch it was issued in

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

IssuedProductOfficeLasted
Mar 12, 10:00 AM CSTTornado WatchSPC5 hr
Mar 12, 11:30 AM CSTTornado WatchSPC4 hr

The nearest sounding before it

Birmingham, AL (KBMX), launched 12:00Z, 6.8 hours before the alert went out and 161 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 2001-03-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 18 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 12:00Z on 2001-03-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 129 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
18 J/kg
Mixed-layer CIN
-9 J/kg
Mixed-layer LCL
625 m above ground
0-6 km bulk shear
53 kt
0-1 km storm-relative helicity
129 m²/s²
0-3 km storm-relative helicity
397 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 KMOB 121849
SVRMOB
ALC013-121930-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
1249 PM CST MON MAR 12 2001

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

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

* UNTIL 130 PM CST

* AT 1249 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 4 MILES EAST OF CHAPMAN...MOVING NORTHEAST AT
  50 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  GREENVILLE...I65 AND AL 185 BY 1255 PM CST

STRONG DAMAGING WIND...LARGE HAIL...AND HEAVY RAIN ARE LIKELY WITH
THIS STORM.  IF IN THE PATH OF THIS STORM...TAKE COVER IN A STURDY
SHELTqER UNTIL THE STORM HAS PASSED.

LAT...LON 3169 8690 3156 8680 3157 8652 3195 8649
          3196 8675

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 12, 1:58 AM CSTSevere Thunderstorm WarningMOBMobile32 min
Mar 12, 2:31 AM CSTSevere Thunderstorm WarningMOBBaldwin44 min
Mar 12, 5:38 AM CSTSevere Thunderstorm WarningMOBWashington37 min
Mar 12, 6:09 AM CSTSevere Thunderstorm WarningMOBMonroe36 min
Mar 12, 6:16 AM CSTSevere Thunderstorm WarningMOBClarke29 min
Mar 12, 6:35 AM CSTSevere Thunderstorm WarningMOBConecuh25 min
Mar 12, 9:19 AM CSTSevere Thunderstorm WarningMOBChoctaw26 min
Mar 12, 10:10 AM CSTSevere Thunderstorm WarningMOBChoctaw50 min
Mar 12, 10:29 AM CSTTornado WarningMOBChoctaw31 min
Mar 12, 10:49 AM CSTTornado WarningMOBWilcox26 min
Mar 12, 10:52 AM CSTSevere Thunderstorm WarningMOBWashington33 min
Mar 12, 10:57 AM CSTTornado WarningMOBChoctaw18 min
Mar 12, 11:05 AM CSTTornado WarningMOBWashington10 min
Mar 12, 11:11 AM CSTSevere Thunderstorm WarningMOBMobile34 min
Mar 12, 11:27 AM CSTSevere Thunderstorm WarningMOBBaldwin33 min
Mar 12, 11:40 AM CSTSevere Thunderstorm WarningMOBButler, Conecuh, Escambia, Monroe, Wilcox65 min
Mar 12, 11:44 AM CSTSevere Thunderstorm WarningMOBMobile31 min
Mar 12, 12:08 PM CSTFlash Flood WarningMOBMobile2 hr
Mar 12, 12:26 PM CSTSevere Thunderstorm WarningMOBMobile34 min
Mar 12, 12:40 PM CSTSevere Thunderstorm WarningMOBCovington, Crenshaw50 min
Mar 12, 12:47 PM CSTSevere Thunderstorm WarningMOBEscambia13 min
Mar 12, 12:47 PM CSTSevere Thunderstorm WarningMOBBaldwin43 min
Mar 12, 1:35 PM CSTSevere Thunderstorm WarningMOBCovington10 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.