Alert archive / Alabama / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 413, NWS Birmingham, AL

November 18, 2003Sumter County, Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at Nov 18, 2003, 10:06 AM CST for Sumter County, Alabama. It was in force for 54 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
Nov 18, 2003, 10:06 AM CST (16:06 UTC)
Expired
Nov 18, 2003, 11:00 AM CST
In force
54 min
Issued by
NWS Birmingham, AL
Area
Counties, with a storm outline in the text

County Sumter County, AL

The watch it was issued in

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

IssuedProductOfficeLasted
Nov 18, 6:55 AM CSTTornado WatchSPC5 hr

The nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 4.1 hours before the alert went out and 150 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, Jackson, MS at 12:00Z on 2003-11-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 211 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, Jackson, MS at 12:00Z on 2003-11-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 295 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
211 J/kg
Mixed-layer CIN
-4 J/kg
Mixed-layer LCL
701 m above ground
0-6 km bulk shear
56 kt
0-1 km storm-relative helicity
295 m²/s²
0-3 km storm-relative helicity
385 m²/s²
Significant tornado parameter
0.3
Supercell composite
1.6

Open this sounding in Storm Lab

The text

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

000 
WUUS54 KBMX 181606
SVRBHM
ALC119-181700-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BIRMINGHAM AL
1005 AM CST TUE NOV 18 2003

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SUMTER COUNTY IN WEST CENTRAL ALABAMA

* UNTIL 1100 AM CST

* AT 1005 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS FROM 25 MILES WEST OF EMELLE TO 24
  MILES SOUTHWEST OF CUBA...MOVING NORTHEAST AT 45 MPH.

* LOCATIONS IN OR NEAR THE PATH OF THESE STORMS 
INCLUDE...BELLAMY...GEIGER...CUBA...LIVINGSTON AND YORK.

A TORNADO WATCH IS ALSO IN EFFECT. REMEMBER...TORNADOES CAN DEVELOP
SUDDENLY FROM SEVERE THUNDERSTORMS.

STRONG DAMAGING WIND...UP TO 65 MPH...WILL KNOCK DOWN TREES AND 
POWER LINES. TAKE COVER NOW. FIND SUBSTANTIAL SHELTER...AVOID 
WINDOWS...VEHICLES AND MOBILE HOMES.

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

LAT...LON 3284 8883 3256 8867 3219 8881 3238 8807
          3298 8820 3298 8834

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Nov 18, 10:18 AM CSTSevere Thunderstorm WarningBMXPickens57 min
Nov 18, 10:42 AM CSTTornado WarningBMXSumter63 min
Nov 18, 10:48 AM CSTSevere Thunderstorm WarningBMXLamar42 min
Nov 18, 10:59 AM CSTSevere Thunderstorm WarningBMXGreene46 min
Nov 18, 11:13 AM CSTSevere Thunderstorm WarningBMXPickens32 min
Nov 18, 11:23 AM CSTSevere Thunderstorm WarningBMXFayette52 min
Nov 18, 11:53 AM CSTTornado WarningBMXTuscaloosa52 min
Nov 18, 11:57 AM CSTTornado WarningBMXDallas48 min
Nov 18, 11:58 AM CSTTornado WarningBMXFayette, Walker47 min
Nov 18, 12:06 PM CSTSevere Thunderstorm WarningBMXMarengo39 min
Nov 18, 12:20 PM CSTTornado WarningBMXJefferson40 min
Nov 18, 12:24 PM CSTTornado WarningBMXChilton51 min
Nov 18, 12:43 PM CSTSevere Thunderstorm WarningBMXShelby47 min
Nov 18, 12:55 PM CSTTornado WarningBMXJefferson35 min
Nov 18, 1:03 PM CSTTornado WarningBMXBlount, St. Clair, Shelby42 min
Nov 18, 1:11 PM CSTTornado WarningBMXChilton34 min
Nov 18, 1:18 PM CSTTornado WarningBMXPerry27 min
Nov 18, 3:13 PM CSTSevere Thunderstorm WarningBMXAutauga, Chilton32 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.