Alert archive / Alabama / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 20, NWS Birmingham, AL

March 29, 2002Madison County, Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at Mar 29, 2002, 10:00 PM CST for Madison County, Alabama. It was in force for 45 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 29, 2002, 10:00 PM CST (04:00 UTC)
Expired: Mar 29, 2002, 10:45 PM CST
In force: 45 min
Issued by: NWS Birmingham, AL
Area: Counties, with a storm outline in the text

County Madison County, AL

The radar

The Northeast Alabama radar (KHTX), 57 km from the middle of the area, began a volume at 04:04 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.

Issued	Product	Office	Lasted
Mar 29, 8:00 PM CST	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 00:00Z, 4.0 hours before the alert went out and 164 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: 1120 J/kg
Mixed-layer CIN: -27 J/kg
Mixed-layer LCL: 1253 m above ground
0-6 km bulk shear: 58 kt
0-1 km storm-relative helicity: 216 m²/s²
0-3 km storm-relative helicity: 352 m²/s²
Significant tornado parameter: 1.9
Supercell composite: 9.5

Open this sounding in Storm Lab

The text

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

000 
WUUS54 KBMX 300400
SVRBHM
ALC089-300445-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BIRMINGHAM AL
1000 PM CST FRI MAR 29 2002

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  MADISON COUNTY IN NORTH CENTRAL ALABAMA

* UNTIL 1045 PM CST

* AT 959 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM OVER TRIANA...MOVING EAST AT 40 MPH.

* LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...HUNTSVILLE...
MADISON AND REDSTONE ARSENAL.

TORNADOES CAN DEVELOP SUDDENLY FROM SEVERE THUNDERSTORMS. BE ALERT
FOR RAPIDLY CHANGING CONDITIONS...STAY INDOORS...AWAY FROM WINDOWS
UNTIL THE STORM HAS PASSED.

IF YOU SEE WIND DAMAGE...LARGE HAIL OR SIGNIFICANT FLOODING...WAIT
UNTIL AFTER THE STORM HAS PASSED...AND THEN CALL THE NATIONAL WEATHER
SERVICE TOLL FREE AT 1, 800, 8 5 6, 0 7 5 8.

LAT...LON 3469 8679 3455 8679 3460 8635 3476 8635

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 29, 8:41 PM CST	Severe Thunderstorm Warning	BMX	Franklin	34 min
Mar 29, 8:56 PM CST	Severe Thunderstorm Warning	BMX	Lawrence	64 min
Mar 29, 9:18 PM CST	Severe Thunderstorm Warning	BMX	Morgan	57 min
Mar 29, 9:30 PM CST	Severe Thunderstorm Warning	BMX	Franklin	45 min
Mar 29, 9:38 PM CST	Tornado Warning	BMX	Morgan	52 min
Mar 29, 9:39 PM CST	Severe Thunderstorm Warning	BMX	Limestone	36 min
Mar 29, 9:59 PM CST	Severe Thunderstorm Warning	BMX	Lawrence	46 min
Mar 29, 10:08 PM CST	Tornado Warning	BMX	Lawrence	37 min
Mar 29, 10:19 PM CST	Tornado Warning	BMX	Madison	41 min
Mar 29, 10:27 PM CST	Tornado Warning	BMX	Marshall	48 min
Mar 29, 10:28 PM CST	Tornado Warning	BMX	Morgan	47 min
Mar 29, 11:10 PM CST	Tornado Warning	BMX	Cullman	20 min
Mar 29, 11:11 PM CST	Tornado Warning	BMX	Marshall	34 min
Mar 29, 11:22 PM CST	Tornado Warning	BMX	DeKalb	38 min
Mar 29, 11:44 PM CST	Tornado Warning	BMX	Marshall	31 min
Mar 29, 11:55 PM CST	Tornado Warning	BMX	DeKalb	65 min
Mar 30, 12:04 AM CST	Tornado Warning	BMX	Etowah	41 min
Mar 30, 12:05 AM CST	Tornado Warning	BMX	Cherokee	40 min
Mar 30, 12:45 AM CST	Severe Thunderstorm Warning	BMX	Cherokee	30 min
Mar 30, 1:39 AM CST	Severe Thunderstorm Warning	BMX	Marshall	51 min
Mar 30, 1:40 AM CST	Severe Thunderstorm Warning	BMX	Lamar, Marion	50 min
Mar 30, 1:45 AM CST	Severe Thunderstorm Warning	BMX	Cullman	45 min
Mar 30, 2:26 AM CST	Severe Thunderstorm Warning	BMX	Fayette	49 min
Mar 30, 2:34 AM CST	Severe Thunderstorm Warning	BMX	Marion	26 min
Mar 30, 2:43 AM CST	Severe Thunderstorm Warning	BMX	Walker	47 min
Mar 30, 3:16 AM CST	Severe Thunderstorm Warning	BMX	Cullman, Winston	44 min
Mar 30, 9:35 AM CST	Severe Thunderstorm Warning	BMX	Tuscaloosa	25 min
Mar 30, 9:58 AM CST	Severe Thunderstorm Warning	BMX	Jefferson	47 min
Mar 30, 10:34 AM CST	Severe Thunderstorm Warning	BMX	Shelby	41 min
Mar 30, 10:47 AM CST	Severe Thunderstorm Warning	BMX	Jefferson	38 min
Mar 30, 11:13 AM CST	Severe Thunderstorm Warning	BMX	Shelby	17 min
Mar 30, 11:18 AM CST	Severe Thunderstorm Warning	BMX	Talladega	42 min
Mar 30, 11:45 AM CST	Severe Thunderstorm Warning	BMX	Clay	45 min
Mar 30, 12:04 PM CST	Severe Thunderstorm Warning	BMX	Talladega	41 min
Mar 30, 12:10 PM CST	Severe Thunderstorm Warning	BMX	Randolph	35 min
Mar 30, 12:40 PM CST	Severe Thunderstorm Warning	BMX	Randolph	20 min
Mar 30, 2:23 PM CST	Severe Thunderstorm Warning	BMX	Bibb	37 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.