Alert archive / Alabama / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 70, NWS Birmingham, AL

March 13, 2003Clay County, Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at Mar 13, 2003, 2:23 PM CST for Clay County, Alabama. It was in force for 67 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, 2:23 PM CST (20:23 UTC)
Expired
Mar 13, 2003, 3:30 PM CST
In force
67 min
Issued by
NWS Birmingham, AL
Area
Counties, with a storm outline in the text

County Clay County, AL

The radar

The Birmingham radar (KBMX), 85 km from the middle of the area, began a volume at 20:24 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, 8.4 hours before the alert went out and 86 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.

000 
WUUS54 KBMX 132023
SVRBHM
ALC027-132130-

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

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CLAY COUNTY IN EAST CENTRAL ALABAMA

* UNTIL 330 PM CST

* AT 219 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 16 MILES WEST OF ASHLAND...MOVING SOUTHEAST AT
  25 MPH.

* LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...LINEVILLE.

LARGE HAIL IS LIKELY WITH THIS STORM. IF YOU ARE IN THE PATH OF THIS
STORM...MOVE INSIDE...AND STAY AWAY FROM WINDOWS.

CALL 1-800-856-0758 TO REPORT SEVERE WEATHER.

LAT...LON 3348 8565 3314 8567 3313 8615 3330 8605
          3330 8598 3338 8597 3347 8588

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 13, 11:06 AM CSTSevere Thunderstorm WarningBMXLamar, Pickens54 min
Mar 13, 11:39 AM CSTSevere Thunderstorm WarningBMXFayette66 min
Mar 13, 11:49 AM CSTSevere Thunderstorm WarningBMXTuscaloosa56 min
Mar 13, 12:48 PM CSTSevere Thunderstorm WarningBMXHale42 min
Mar 13, 12:57 PM CSTSevere Thunderstorm WarningBMXBibb, Perry, Tuscaloosa63 min
Mar 13, 12:59 PM CSTSevere Thunderstorm WarningBMXGreene, Sumter46 min
Mar 13, 1:17 PM CSTSevere Thunderstorm WarningBMXMarengo43 min
Mar 13, 1:46 PM CSTSevere Thunderstorm WarningBMXShelby29 min
Mar 13, 1:46 PM CSTSevere Thunderstorm WarningBMXChilton44 min
Mar 13, 1:55 PM CSTSevere Thunderstorm WarningBMXLowndes50 min
Mar 13, 2:05 PM CSTSevere Thunderstorm WarningBMXCoosa, Talladega25 min
Mar 13, 2:54 PM CSTSevere Thunderstorm WarningBMXElmore51 min
Mar 13, 3:04 PM CSTSevere Thunderstorm WarningBMXMontgomery41 min
Mar 13, 3:16 PM CSTSevere Thunderstorm WarningBMXTallapoosa44 min
Mar 13, 3:22 PM CSTSevere Thunderstorm WarningBMXMacon38 min
Mar 13, 3:31 PM CSTSevere Thunderstorm WarningBMXPike44 min
Mar 13, 4:14 PM CSTSevere Thunderstorm WarningBMXBarbour, Pike46 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.