Alert archive / Alabama / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 43, NWS Mobile, AL

March 13, 2003Clarke County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at Mar 13, 2003, 1:47 PM CST for Clarke County, Alabama. It was in force for 28 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
Mar 13, 2003, 1:47 PM CST (19:47 UTC)
Expired
Mar 13, 2003, 2:15 PM CST
In force
28 min
Issued by
NWS Mobile, AL
Area
Counties, with a storm outline in the text

County Clarke County, AL

The radar

The Mobile radar (KMOB), 145 km from the middle of the area, began a volume at 19:48 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 watch it was issued in

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

IssuedProductOfficeLasted
Mar 13, 10:10 AM CSTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Birmingham, AL (KBMX), launched 12:00Z, 7.8 hours before the alert went out and 169 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 2003-03-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 428 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 2003-03-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 111 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
428 J/kg
Mixed-layer CIN
-101 J/kg
Mixed-layer LCL
783 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
111 m²/s²
0-3 km storm-relative helicity
86 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.

846 
WUUS54 KMOB 131947
SVRMOB
ALC025-132015-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
147 PM CST THU MAR 13 2003

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

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

* UNTIL 215 PM CST

* AT 147 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 3 MILES SOUTHWEST OF OPINE...MOVING EAST AT 35
  MPH.

* THE SEVERE THUNDERSTORM WILL PASS NEAR...
  TALLAHATTA SPRINGS...HOLTAMVILLE BY 150 PM CST
  BASHI BY 155 PM CST
  THOMASVILLE...ROUNDHILL BY 205 PM CST
  SHAWNEE BY 210 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
SHELTER UNTIL THE STORM HAS PASSED.

LAT...LON 3200 8768 3189 8768 3183 8762 3183 8804
          3198 8804

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 12, 6:28 PM CSTSpecial Marine WarningMOB2 hr
Mar 12, 6:28 PM CSTSpecial Marine WarningMOB2 hr
Mar 12, 8:21 PM CSTSpecial Marine WarningMOB2 hr
Mar 13, 1:03 AM CSTSpecial Marine WarningMOB57 min
Mar 13, 1:30 AM CSTSevere Thunderstorm WarningMOBBaldwin, Mobile30 min
Mar 13, 2:06 AM CSTSevere Thunderstorm WarningMOBBaldwin39 min
Mar 13, 2:10 AM CSTSpecial Marine WarningMOB65 min
Mar 13, 2:10 AM CSTSpecial Marine WarningMOB65 min
Mar 13, 2:35 AM CSTSpecial Marine WarningMOB55 min
Mar 13, 9:22 AM CSTSevere Thunderstorm WarningMOBMonroe23 min
Mar 13, 9:26 AM CSTSevere Thunderstorm WarningMOBMonroe19 min
Mar 13, 2:26 PM CSTSevere Thunderstorm WarningMOBClarke34 min
Mar 13, 2:59 PM CSTSevere Thunderstorm WarningMOBClarke, Monroe31 min
Mar 13, 3:05 PM CSTTornado WarningMOBWashington25 min
Mar 13, 3:10 PM CSTSevere Thunderstorm WarningMOBButler, Crenshaw50 min
Mar 13, 3:16 PM CSTSevere Thunderstorm WarningMOBClarke, Monroe29 min
Mar 13, 3:27 PM CSTSevere Thunderstorm WarningMOBWashington33 min
Mar 13, 3:30 PM CSTSevere Thunderstorm WarningMOBClarke, Monroe30 min
Mar 13, 3:45 PM CSTSevere Thunderstorm WarningMOBConecuh45 min
Mar 13, 3:46 PM CSTSevere Thunderstorm WarningMOBMobile44 min
Mar 13, 4:00 PM CSTSevere Thunderstorm WarningMOBButler, Crenshaw45 min
Mar 13, 4:03 PM CSTSpecial Marine WarningMOB117 min
Mar 13, 4:03 PM CSTSpecial Marine WarningMOB117 min
Mar 13, 4:20 PM CSTSevere Thunderstorm WarningMOBCovington40 min
Mar 13, 4:21 PM CSTSevere Thunderstorm WarningMOBBaldwin54 min
Mar 13, 4:26 PM CSTSevere Thunderstorm WarningMOBConecuh34 min
Mar 13, 4:29 PM CSTSevere Thunderstorm WarningMOBMobile31 min
Mar 13, 4:38 PM CSTSevere Thunderstorm WarningMOBEscambia22 min
Mar 13, 4:58 PM CSTSevere Thunderstorm WarningMOBCovington47 min
Mar 13, 5:11 PM CSTSevere Thunderstorm WarningMOBBaldwin64 min
Mar 13, 5:13 PM CSTSevere Thunderstorm WarningMOBEscambia32 min
Mar 13, 5:33 PM CSTSevere Thunderstorm WarningMOBBaldwin42 min
Mar 13, 5:44 PM CSTSevere Thunderstorm WarningMOBCovington46 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.