Alert archive / Alabama / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 431, NWS Birmingham, AL

July 15, 1997Lee County, Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at Jul 15, 1997, 5:03 PM CDT for Lee County, Alabama. It was in force for 32 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: Jul 15, 1997, 5:03 PM CDT (22:03 UTC)
Expired: Jul 15, 1997, 5:35 PM CDT
In force: 32 min
Issued by: NWS Birmingham, AL
Area: Whole counties

County Lee County, AL

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 10.1 hours before the alert went out and 117 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: 759 J/kg
Mixed-layer CIN: -35 J/kg
Mixed-layer LCL: 817 m above ground
0-6 km bulk shear: 8 kt
0-1 km storm-relative helicity: 26 m²/s²
0-3 km storm-relative helicity: 26 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 
TTAA00 KBHM 152204 RRA
SVRBHM
ALC081-152235-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BIRMINGHAM AL
503 PM CDT TUE JUL 15 1997

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM AL HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 535 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...

IN EAST CENTRAL ALABAMA

   ...LEE COUNTY
 
AT 502 PM CDT...WEATHER RADAR SHOWED A SEVERE THUNDERSTORM OVER
CENTRAL LEE COUNTY...JUST EAST OF OPELIKA AND BEAUREGARD.  THE STORM
WAS MOVING TOWARD THE EAST AT AROUND 5 MPH.  DIME-SIZED
HAIL HAS BEEN REPORTED WITH THIS STORM DURING THE PAST FEW MINUTES.
 
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
Jul 15, 2:30 PM CDT	Severe Thunderstorm Warning	BMX	Shelby	35 min
Jul 15, 4:11 PM CDT	Severe Thunderstorm Warning	BMX	Montgomery	34 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.