Alert archive / Alabama / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 21, NWS Birmingham, AL

March 30, 2002Cherokee County, Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at Mar 30, 2002, 12:45 AM CST for Cherokee County, Alabama. It was in force for 30 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Mar 30, 2002, 12:45 AM CST (06:45 UTC)
Expired: Mar 30, 2002, 1:15 AM CST
In force: 30 min
Issued by: NWS Birmingham, AL
Area: Counties, with a storm outline in the text

County Cherokee County, AL

The radar

The Northeast Alabama radar (KHTX), 91 km from the middle of the area, began a volume at 06:47 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.

What was reported inside it

Time	Report	Where	Remark
Mar 30, 12:45 AM CST	Hail 1	Forney, AL	Quarter size hail was reported near the town of Forney.

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 6.8 hours before the alert went out and 138 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 2365 m above ground
0-6 km bulk shear: 42 kt
0-1 km storm-relative helicity: 44 m²/s²
0-3 km storm-relative helicity: 177 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 300645
SVRBHM
ALC019-300715-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BIRMINGHAM AL
1245 AM CST SAT MAR 30 2002

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CHEROKEE COUNTY IN NORTHEAST ALABAMA

* UNTIL 115 AM CST

* AT 1245 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM OVER CEDAR BLUFF...MOVING EAST AT 30 MPH.

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

STRONG DAMAGING WIND...AND LARGE HAIL ARE LIKELY WITH THIS STORM. 
TAKE COVER IN A STURDY SHELTER UNTIL THE STORM PASSES.

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 3427 8568 3409 8567 3407 8543 3438 8548

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, 10:00 PM CST	Severe Thunderstorm Warning	BMX	Madison	45 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, 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.