Alert archive / Alabama / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 202, NWS Birmingham, AL

March 29, 1997Cleburne County, Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at Mar 29, 1997, 2:51 AM CST for Cleburne County, Alabama. It was in force for 64 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Mar 29, 1997, 2:51 AM CST (08:51 UTC)
Expired: Mar 29, 1997, 3:55 AM CST
In force: 64 min
Issued by: NWS Birmingham, AL
Area: Whole counties

County Cleburne County, AL

The radar

The Atlanta radar (KFFC), 95 km from the middle of the area, began a volume at 08:55 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 28, 11:45 PM CST	Tornado Watch	SPC	4 hr

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 8.9 hours before the alert went out and 100 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: 1292 J/kg
Mixed-layer CIN: -3 J/kg
Mixed-layer LCL: 660 m above ground
0-6 km bulk shear: 60 kt
0-1 km storm-relative helicity: 207 m²/s²
0-3 km storm-relative helicity: 209 m²/s²
Significant tornado parameter: 1.6
Supercell composite: 6.5

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KBHM 290851 RRA
SVRBHM
ALC029-290955-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BIRMINGHAM AL
251 AM CST SAT MAR 29 1997

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM AL HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 355 AM CST
FOR PEOPLE IN THE FOLLOWING LOCATION...

IN EAST CENTRAL ALABAMA

   ...CLEBURNE
 
AT 249 AM CST...A SEVERE THUNDERSTORM WAS INDICATED BY WEATHER
RADAR 6 MILES NORTHWEST OF HEFLIN MOVING EAST AT 40 MPH.

SOME LOCATIONS IN THE PATH OF THIS STORM ARE...
EDWARDSVILLE                AROUND 256 AM CST
FRUITHURST                  AROUND 302 AM CST
MUSCADINE                   AROUND 306 AM CST
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MPH...
DESTRUCTIVE HAIL... DEADLY LIGHTNING... AND VERY HEAVY RAIN. FOR
YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF
YOUR HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DONT
DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 28, 8:56 PM CST	Severe Thunderstorm Warning	BMX	Lauderdale	64 min
Mar 28, 10:32 PM CST	Severe Thunderstorm Warning	BMX	Lawrence	58 min
Mar 28, 10:47 PM CST	Severe Thunderstorm Warning	BMX	Morgan	58 min
Mar 29, 12:13 AM CST	Severe Thunderstorm Warning	BMX	Cullman	32 min
Mar 29, 12:20 AM CST	Severe Thunderstorm Warning	BMX	Walker	50 min
Mar 29, 12:25 AM CST	Severe Thunderstorm Warning	BMX	Blount	65 min
Mar 29, 12:39 AM CST	Severe Thunderstorm Warning	BMX	DeKalb	66 min
Mar 29, 1:04 AM CST	Severe Thunderstorm Warning	BMX	St. Clair	31 min
Mar 29, 1:10 AM CST	Severe Thunderstorm Warning	BMX	Etowah	65 min
Mar 29, 1:23 AM CST	Severe Thunderstorm Warning	BMX	Calhoun	62 min
Mar 29, 1:30 AM CST	Severe Thunderstorm Warning	BMX	Cherokee	35 min
Mar 29, 2:00 AM CST	Severe Thunderstorm Warning	BMX	St. Clair	20 min
Mar 29, 2:45 AM CST	Severe Thunderstorm Warning	BMX	Calhoun	30 min
Mar 29, 5:11 PM CST	Severe Thunderstorm Warning	BMX	Russell	49 min

Nearby

Severe Thunderstorm Warnings in Alabama, 1997 Every severe thunderstorm warning in 1997

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.