Alert archive / Alabama / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 259, NWS Birmingham, AL

April 22, 1997Pike County, Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at Apr 22, 1997, 8:36 PM CDT for Pike County, Alabama. It was in force for 29 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
Apr 22, 1997, 8:36 PM CDT (01:36 UTC)
Expired
Apr 22, 1997, 9:05 PM CDT
In force
29 min
Issued by
NWS Birmingham, AL
Area
Whole counties

County Pike County, AL

The radar

The Ft Rucker radar (KEOX), 59 km from the middle of the area, began a volume at 01:40 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.

IssuedProductOfficeLasted
Apr 22, 2:45 PM CDTTornado WatchSPC6 hr

The nearest sounding before it

Birmingham, AL (KBMX), launched 00:00Z, 1.6 hours before the alert went out and 172 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-pSkew-T log-p diagram, Birmingham, AL at 00:00Z on 1997-04-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 105 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Birmingham, AL at 00:00Z on 1997-04-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 239 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
105 J/kg
Mixed-layer CIN
-265 J/kg
Mixed-layer LCL
799 m above ground
0-6 km bulk shear
67 kt
0-1 km storm-relative helicity
239 m²/s²
0-3 km storm-relative helicity
235 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.

329 
WUUS1 KBHM 230137 RRA
SVRBHM
ALC109-230205-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BIRMINGHAM AL
836 PM CDT TUE APR 22 1997

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM AL HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 905 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...

IN SOUTHEASTERN ALABAMA

   ...PIKE
 
AT 835 PM CDT...RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS OVER
CENTRAL PIKE COUNTY...FROM NEAR LINWOOD SOUTHWARD TO NEAR HENDERSON.

THE LINE WAS MOVING EAST AT AROUND 40 MPH...AND WILL AFFECT TROY AND
BRUNDIDGE THROUGH 900 PM.  STRONG...POTENTIALLY DAMAGING WINDS AND
LARGE HAIL ARE LIKELY WITH THIS STORM.
 
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.

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, Apr 22, 3:27 PM CDT, 5 hours 9 minutes before
ALZ001>004-011>015-022-023-030>032-039-222130-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
327 PM CDT TUE APR 22 1997

THE NATIONAL WEATHER SERVICE HAS CANCELLED THE TORNADO WATCH
FOR THE FOLLOWING COUNTIES IN WEST ALABAMA...

LAUDERDALE..COLBERT..FRANKLIN...LAWRENCE..MARION..WINSTON..
LAMAR..FAYETTE..WALKER..PICKENS..TUSCALOOSA..GREENE..HALE..
SUMTER..MARENGO.
Special weather statement, Apr 22, 3:28 PM CDT, 5 hours 8 minutes before
ALZ001>004-011>015-022-023-030>032-039-222130-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
327 PM CDT TUE APR 22 1997

THE NATIONAL WEATHER SERVICE HAS CANCELLED THE TORNADO WATCH
FOR THE FOLLOWING COUNTIES IN WEST ALABAMA...

LAUDERDALE..COLBERT..FRANKLIN...LAWRENCE..MARION..WINSTON..
LAMAR..FAYETTE..WALKER..PICKENS..TUSCALOOSA..GREENE..HALE..
SUMTER..MARENGO.
Special weather statement, Apr 22, 4:44 PM CDT, 3 hours 52 minutes before
ALZ009-010-016>021-024-026-222215-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
442 PM CDT TUE APR 22 1997

THE TORNADO WATCH HAS BEEN CANCELLED FOR THE FOLLOWING COUNTIES...

IN ALABAMA

   ...JACKSON... DEKALB... CULLMAN... BLOUNT... ETOWAH... CALHOUN
   ...CHEROKEE... CLEBURNE... JEFFERSON... ST. CLAIR
Special weather statement, Apr 22, 7:40 PM CDT, 56 minutes before
ALZ025-027>029-033>036-040-041-230100-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
740 PM CDT TUE APR 22 1997

THE TORNADO WATCH HAS BEEN CANCELLED FOR THE FOLLOWING COUNTIES
IN ALABAMA...

   ...SHELBY...BIBB...CHILTON...PERRY...DALLAS...AUTAUGA...COOSA...
   TALLADEGA...CLAY...RANDOLPH...
Special weather statement, Apr 22, 8:35 PM CDT, 1 minute before
ALZ037-038-043-230200-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
835 PM CDT TUE APR 22 1997

THE TORNADO WATCH HAS BEEN CANCELLED FOR THE FOLLOWING COUNTIES
IN ALABAMA...

   ...ELMORE...TALLAPOOSA...CHAMBERS...

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 22, 7:14 PM CDTSevere Thunderstorm WarningBMXLowndes36 min
Apr 22, 7:20 PM CDTSevere Thunderstorm WarningBMXMacon, Tallapoosa50 min
Apr 22, 7:44 PM CDTSevere Thunderstorm WarningBMXMontgomery46 min
Apr 22, 8:49 PM CDTSevere Thunderstorm WarningBMXBarbour51 min

Nearby

Severe Thunderstorm Warnings in Alabama, 1997Every 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.