Alert archive / Alabama / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 8, NWS Mobile, AL

February 21, 2003Baldwin County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at Feb 21, 2003, 2:44 PM CST for Baldwin County, Alabama. It was in force for 61 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Feb 21, 2003, 2:44 PM CST (20:44 UTC)
Expired
Feb 21, 2003, 3:45 PM CST
In force
61 min
Issued by
NWS Mobile, AL
Area
Counties, with a storm outline in the text

County Baldwin County, AL

The radar

The Mobile radar (KMOB), 54 km from the middle of the area, began a volume at 20:47 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 8.7 hours before the alert went out and 179 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 2003-02-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 362 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°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 2003-02-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 380 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
362 J/kg
Mixed-layer CIN
-40 J/kg
Mixed-layer LCL
469 m above ground
0-6 km bulk shear
69 kt
0-1 km storm-relative helicity
380 m²/s²
0-3 km storm-relative helicity
504 m²/s²
Significant tornado parameter
0.0
Supercell composite
5.4

Open this sounding in Storm Lab

The text

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

000 
WUUS54 KMOB 212044
SVRMOB
ALC003-212145-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
244 PM CST FRI FEB 21 2003

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

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

* UNTIL 345 PM CST

* AT 244 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS FROM 3 MILES WEST OF CLAY CITY TO 5
  MILES SOUTH OF FORT MORGAN...MOVING EAST AT 20 MPH.

* SEVERE THUNDERSTORMS WILL BE NEAR...
  CLAY CITY...WEEKS BAY BY 250 PM CST
  SILVERHILL...MAGNOLIA SPRINGS BY 255 PM CST
  SUMMERDALE...ROBERTSDALE BY 305 PM CST
  OAK...FOLEY BY 310 PM CST

STRONG DAMAGING WIND...LARGE HAIL...AND HEAVY RAIN 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 3056 8793 3025 8801 3009 8819 3009 8777
          3025 8759 3059 8744

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 21, 7:39 AM CSTSevere Thunderstorm WarningMOBMobile, Washington51 min
Feb 21, 8:38 AM CSTSpecial Marine WarningMOB67 min
Feb 21, 9:58 AM CSTSpecial Marine WarningMOB2 hr
Feb 21, 9:58 AM CSTSpecial Marine WarningMOB2 hr
Feb 21, 12:01 PM CSTSpecial Marine WarningMOB119 min
Feb 21, 12:01 PM CSTSpecial Marine WarningMOB119 min
Feb 21, 1:51 PM CSTSpecial Marine WarningMOB114 min
Feb 21, 1:51 PM CSTSpecial Marine WarningMOB114 min
Feb 21, 3:55 PM CSTSpecial Marine WarningMOB65 min
Feb 21, 3:55 PM CSTSpecial Marine WarningMOB65 min
Feb 21, 5:26 PM CSTSpecial Marine WarningMOB64 min
Feb 21, 5:53 PM CSTSpecial Marine WarningMOB52 min

Nearby

Severe Thunderstorm Warnings in Alabama, 2003Every severe thunderstorm warning in 2003

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; radar from the NEXRAD Level II archive.