Alert archive / Alabama / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 276, NWS Birmingham, AL

April 28, 1997Marshall County, Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at Apr 28, 1997, 6:15 PM CDT for Marshall County, Alabama. It was in force for 60 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: Apr 28, 1997, 6:15 PM CDT (23:15 UTC)
Expired: Apr 28, 1997, 7:15 PM CDT
In force: 60 min
Issued by: NWS Birmingham, AL
Area: Whole counties

County Marshall County, AL

What was reported inside it

Time	Report	Where	Remark
Apr 28, 6:28 PM CDT	Hail 0.75	Albertville, AL	Three-quarter inch hail was reported in Hustleville, in the eastern part of the county, by a ham spotter.

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 watch it was issued in

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

Issued	Product	Office	Lasted
Apr 28, 3:00 PM CDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Birmingham, AL (KBMX), launched 12:00Z, 11.3 hours before the alert went out and 139 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: 263 J/kg
Mixed-layer CIN: -100 J/kg
Mixed-layer LCL: 504 m above ground
0-6 km bulk shear: 77 kt
0-1 km storm-relative helicity: 134 m²/s²
0-3 km storm-relative helicity: 152 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.6

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KHSV 282320 COR
SVRHSV
ALC095-290015-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING...CORRECTED
NATIONAL WEATHER SERVICE HUNTSVILLE AL
615 PM CDT MON APR 28 1997

THE NATIONAL WEATHER SERVICE IN HUNTSVILLE HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  715 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...

IN NORTH ALABAMA

   ...MARSHALL COUNTY

AT 613 PM CDT WEATHER SERVICE RADAR IN HUNTSVILLE INDICATED A SEVERE
THUNDERSTORM FROM ALBERTVILLE TO NEAR DOUGLAS.

MOVEMENT WAS EAST NORTHEAST AT 20 MILES AN HOUR.

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
FOR YOUR PROTECTION MOVE TO AN INTERIOR2 ROOM ON THE LOWEST FLOOR
OF YOUR HOME OR BUSINESS.  HEAVY RAINS FLOOD ROADS QUICKLY SO
DON'T 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
Apr 28, 1:10 PM CDT	Severe Thunderstorm Warning	BMX	St. Clair	30 min
Apr 28, 1:46 PM CDT	Severe Thunderstorm Warning	BMX	Talladega	34 min
Apr 28, 2:10 PM CDT	Severe Thunderstorm Warning	BMX	Calhoun	60 min
Apr 28, 2:52 PM CDT	Severe Thunderstorm Warning	BMX	Etowah, St. Clair	63 min
Apr 28, 3:53 PM CDT	Severe Thunderstorm Warning	BMX	Cherokee	62 min
Apr 28, 4:16 PM CDT	Severe Thunderstorm Warning	BMX	Blount	49 min
Apr 28, 4:46 PM CDT	Severe Thunderstorm Warning	BMX	Etowah	64 min
Apr 28, 4:49 PM CDT	Severe Thunderstorm Warning	BMX	Marshall	56 min
Apr 28, 4:56 PM CDT	Severe Thunderstorm Warning	BMX	Cullman, Winston	64 min
Apr 28, 5:02 PM CDT	Severe Thunderstorm Warning	BMX	DeKalb	58 min
Apr 28, 5:13 PM CDT	Severe Thunderstorm Warning	BMX	Limestone, Madison	62 min
Apr 28, 5:21 PM CDT	Severe Thunderstorm Warning	BMX	St. Clair	49 min
Apr 28, 5:40 PM CDT	Severe Thunderstorm Warning	BMX	Blount	65 min
Apr 28, 5:51 PM CDT	Tornado Warning	BMX	DeKalb	69 min
Apr 28, 6:08 PM CDT	Severe Thunderstorm Warning	BMX	St. Clair	32 min
Apr 28, 6:15 PM CDT	Flash Flood Warning	BMX	Etowah	2 hr
Apr 28, 6:27 PM CDT	Severe Thunderstorm Warning	BMX	Etowah	48 min
Apr 28, 6:31 PM CDT	Tornado Warning	BMX	Marshall	59 min
Apr 28, 6:44 PM CDT	Severe Thunderstorm Warning	BMX	Calhoun	66 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.