Alert archive / Alabama / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 151, NWS Mobile, AL

August 19, 2001Mobile County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at Aug 19, 2001, 1:45 PM CDT for Mobile County, Alabama. It was in force for 60 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
Aug 19, 2001, 1:45 PM CDT (18:45 UTC)
Expired
Aug 19, 2001, 2:45 PM CDT
In force
60 min
Issued by
NWS Mobile, AL
Area
Whole counties; the outline is the Mesonet’s reconstruction

County Mobile County, AL

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 6.8 hours before the alert went out and 238 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, Slidell Radar S, LA at 12:00Z on 2001-08-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2603 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, Slidell Radar S, LA at 12:00Z on 2001-08-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 16 square meters per square second.1939Sfc1 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
2603 J/kg
Mixed-layer CIN
-27 J/kg
Mixed-layer LCL
759 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
16 m²/s²
0-3 km storm-relative helicity
25 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.

559 
WUUS54 KMOB 191851
SVRMOB
ALC003-053-097-FLC033-113-191945-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL...CORRECTED EXPIRATION TIME...
145 PM CDT SUN AUG 19 2001

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  MOBILE COUNTY IN SOUTHWEST ALABAMA
  SANTA ROSA COUNTY IN NORTHWEST FLORIDA
  ESCAMBIA COUNTY IN SOUTH CENTRAL ALABAMA
  ESCAMBIA COUNTY IN NORTHWEST FLORIDA
  BALDWIN COUNTY IN SOUTHWEST ALABAMA

* UNTIL 245 PM CDT

* AT 145 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A 
LINE OF STRONG TO SEVERE THUNDERSTORMS MOVING ACROSS THE COASTAL 
AREAS OF SOUTHWEST ALABAMA AND NORTHWEST FLORIDA. WIND GUSTS TO 50 
TO 60 MPH HAVE BEEN REPORTED WITHIN THIS LINE OF THUNDERSTORMS.  

STRONG DAMAGING WIND...LARGE HAIL AND DEADLY LIGHTNING ARE LIKELY
WITH THESE STORMS.  IF IN THE PATH OF THESE STORMS...TAKE COVER IN A
STURDY SHELTER UNTIL THE STORMS HAVE PASSED.

LAT...LON 3161 8694 3045 8862 3033 8765 3106 8670

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 19, 12:52 PM CDTSevere Thunderstorm WarningMOBClarke53 min
Aug 19, 1:45 PM CDTSevere Thunderstorm WarningMOBBaldwin, Escambia60 min
Aug 19, 1:57 PM CDTSevere Thunderstorm WarningMOBConecuh, Covington48 min
Aug 19, 2:46 PM CDTSevere Thunderstorm WarningMOBCovington44 min
Aug 19, 3:05 PM CDTTornado WarningMOBCovington25 min
Aug 19, 3:38 PM CDTSevere Thunderstorm WarningMOBCovington22 min
Aug 19, 3:45 PM CDTTornado WarningMOBCovington30 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.