Alert archive / Alabama / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 362, NWS Birmingham, AL

September 22, 2002Coosa County, Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at Sep 22, 2002, 5:24 AM CDT for Coosa County, Alabama. It was in force for 51 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: Sep 22, 2002, 5:24 AM CDT (10:24 UTC)
Expired: Sep 22, 2002, 6:15 AM CDT
In force: 51 min
Issued by: NWS Birmingham, AL
Area: Counties, with a storm outline in the text

County Coosa County, AL

The radar

The Birmingham radar (KBMX), 55 km from the middle of the area, began a volume at 10:24 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 nearest sounding before it

Birmingham, AL (KBMX), launched 00:00Z, 10.4 hours before the alert went out and 56 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1963 J/kg
Mixed-layer CIN: -14 J/kg
Mixed-layer LCL: 1044 m above ground
0-6 km bulk shear: 13 kt
0-1 km storm-relative helicity: 27 m²/s²
0-3 km storm-relative helicity: 65 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.

444 
WUUS54 KBMX 221024
SVRBHM
ALC037-221115-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BIRMINGHAM AL
524 AM CDT SUN SEP 22 2002

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A

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

* UNTIL 615 AM CDT

* AT 521 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS FROM STEWARTVILLE TO 11 MILES WEST OF
  WEOGUFKA...MOVING SOUTHEAST AT 20 MPH.

* LOCATIONS IN OR NEAR THE PATH OF THESE STORMS INCLUDE...KELLYTON
AND ROCKFORD.

STRONG DAMAGING WIND WILL KNOCK DOWN TREES AND POWER LINES...AND
DAMAGE BUILDINGS AND HOMES. TAKE COVER NOW. FIND SUBSTANTIAL
SHELTER...AVOID WINDOWS...VEHICLES AND MOBILE HOMES.

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

LAT...LON 3285 8601 3276 8615 3276 8631 3288 8648
          3294 8652 3306 8652 3310 8643 3311 8615
          3302 8601

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 22, 1:56 AM CDT	Flash Flood Warning	BMX	Clay, Randolph	4 hr
Sep 22, 3:32 AM CDT	Flash Flood Warning	BMX	Jefferson, St. Clair, Shelby, Talladega	4 hr
Sep 22, 4:58 AM CDT	Severe Thunderstorm Warning	BMX	Talladega	47 min
Sep 22, 6:03 AM CDT	Flash Flood Warning	BMX	Chilton, Coosa	4 hr
Sep 22, 6:56 AM CDT	Flash Flood Warning	BMX	Bibb, Tuscaloosa	4 hr
Sep 22, 7:27 AM CDT	Flash Flood Warning	BMX	Jefferson, Shelby, Talladega	4 hr
Sep 22, 10:00 AM CDT	Flash Flood Warning	BMX	Chilton, Coosa	60 min

Nearby

Severe Thunderstorm Warnings in Alabama, 2002 Every severe thunderstorm warning in 2002

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.