Alert archive / Alabama / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 509, NWS Birmingham, AL

November 1, 1997Pike County, Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at Nov 1, 1997, 2:30 PM CST for Pike County, Alabama. It was in force for 50 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
Nov 1, 1997, 2:30 PM CST (20:30 UTC)
Expired
Nov 1, 1997, 3:20 PM CST
In force
50 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 20:32 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

TimeReportWhereRemark
Nov 1, 2:45 PM CSTHail 1.25Orion, ALQuarter to half dollar size hail was reported near Orion, in the northern part of the county.

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.

IssuedProductOfficeLasted
Nov 1, 1:15 PM CSTTornado WatchSPC6 hr

The nearest sounding before it

Eglin AFB/Valpar, FL (KVPS), launched 12:00Z, 8.5 hours before the alert went out and 156 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, Eglin AFB/Valpar, FL at 12:00Z on 1997-11-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1154 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, Eglin AFB/Valpar, FL at 12:00Z on 1997-11-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 169 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
1154 J/kg
Mixed-layer CIN
-7 J/kg
Mixed-layer LCL
625 m above ground
0-6 km bulk shear
56 kt
0-1 km storm-relative helicity
169 m²/s²
0-3 km storm-relative helicity
164 m²/s²
Significant tornado parameter
0.0
Supercell composite
3.8

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KBHM 012030 RRA
SVRBHM
ALC109-012120-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BIRMINGHAM AL
230 PM CST SAT NOV 1 1997


THE NATIONAL WEATHER SERVICE IN BIRMINGHAM AL HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 320 PM CST
FOR PEOPLE IN THE FOLLOWING LOCATION...

IN SOUTHEASTERN ALABAMA

   ...PIKE COUNTY...

AT 228 PM CST... WEATHER RADAR SHOWED A SEVERE THUNDERSTORM
PRODUCING LARGE HAIL NEAR BRUNDIDGE.  THIS STORM WAS MOVING TO THE
NORTHEAST AT 25 MPH.  OTHER SEVERE THUNDERSTORMS...CAPABLE OF
PRODUCING LARGE HAIL...ARE EXPECTED MOVE INTO THE WESTERN PART OF PIKE
COUNTY BY 245 PM.




<<CALL TO ACTION>>
IF YOU ARE CAUGHT OUTSIDE... SEEK REFUGE FROM THE STORM IN A
STRONG BUILDING. BOATERS ON AREA LAKES SHOULD TAKE SHELTER.
DAMAGING WIND... LARGE HAIL... VERY HEAVY RAIN... AND DANGEROUS
LIGHTNING ARE ALL LIKELY. DO NOT SEEK SHELTER UNDER TREES OR OTHER
ISOLATED TALL OBJECTS. THESE ATTRACT LIGHTNING. DO NOT 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, Nov 1, 9:37 AM CST, 4 hours 53 minutes before
ALZ001>050-GAZ089-090-102-120-020100-

HAZARDOUS WEATHER OUTLOOK
FOR NORTH/CENTRAL AL AND WEST CENTRAL GA
NATIONAL WEATHER SERVICE BIRMINGHAM AL
940 AM CST SAT NOV 1 1997

A COLD FRONT WILL MOVE INTO WEST ALABAMA EARLY THIS AFTERNOON AND WILL
BE LOCATED NEAR THE ALABAMA/GEORGIA STATE LINE BY SUNSET.  THE AIRMASS
ACROSS THE REGION WILL BECOME MORE UNSTABLE AS SOUTH WINDS INCREASE
DURING THE DAY.  THE STORM PREDICTION CENTER HAS OUTLOOKED THE AREA
FOR A SLIGHT RISK OF SEVERE THUNDERSTORMS.  ANY THUNDERSTORMS THAT
DEVELOP TODAY WILL HAVE THE POTENTIAL TO BECOME SEVERE...WITH LARGE
HAIL BEING THE PRIMARY THREAT.

STORM SPOTTERS AND EMERGENCY MANAGEMENT PERSONNEL SHOULD BE ON STANDBY
AND BE READY FOR SEVERE WEATHER ACTIVATION IF A SEVERE THUNDERSTORM OR
TORNADO WATCH IS ISSUED.

FOR THE SOUTHERN ALABAMA HAZARDOUS WEATHER OUTLOOK...SEE PRODUCT
BHMSPSMOB.  FOR MORE WEATHER INFORMATION VISIT OUR INTERNET SITE AT
HTTP://WWW.ACESAG.AUBURN.EDU/DEPARTMENT/NWS/INDEX.HTML ON THE WORLD
WIDE WEB.
Special weather statement, Nov 1, 9:40 AM CST, 4 hours 50 minutes before
ALZ001>050-GAZ089-090-102-120-020100-

HAZARDOUS WEATHER OUTLOOK
FOR NORTH/CENTRAL AL AND WEST CENTRAL GA
NATIONAL WEATHER SERVICE BIRMINGHAM AL
940 AM CST SAT NOV 1 1997

A COLD FRONT WILL MOVE INTO WEST ALABAMA EARLY THIS AFTERNOON AND WILL
BE LOCATED NEAR THE ALABAMA/GEORGIA STATE LINE BY SUNSET.  THE AIRMASS
ACROSS THE REGION WILL BECOME MORE UNSTABLE AS SOUTH WINDS INCREASE
DURING THE DAY.  THE STORM PREDICTION CENTER HAS OUTLOOKED THE AREA
FOR A SLIGHT RISK OF SEVERE THUNDERSTORMS.  ANY THUNDERSTORMS THAT
DEVELOP TODAY WILL HAVE THE POTENTIAL TO BECOME SEVERE...WITH LARGE
HAIL BEING THE PRIMARY THREAT.

STORM SPOTTERS AND EMERGENCY MANAGEMENT PERSONNEL SHOULD BE ON STANDBY
AND BE READY FOR SEVERE WEATHER ACTIVATION IF A SEVERE THUNDERSTORM OR
TORNADO WATCH IS ISSUED.

FOR THE SOUTHERN ALABAMA HAZARDOUS WEATHER OUTLOOK...SEE PRODUCT
BHMSPSMOB.  FOR MORE WEATHER INFORMATION VISIT OUR INTERNET SITE AT
HTTP://WWW.ACESAG.AUBURN.EDU/DEPARTMENT/NWS/INDEX.HTML ON THE WORLD
WIDE WEB.

The office that day

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

IssuedProductOfficeCountiesLasted
Nov 1, 10:54 AM CSTSevere Thunderstorm WarningBMXCalhoun46 min
Nov 1, 12:31 PM CSTSevere Thunderstorm WarningBMXSumter49 min
Nov 1, 12:36 PM CSTSevere Thunderstorm WarningBMXPickens, Tuscaloosa49 min
Nov 1, 12:38 PM CSTSevere Thunderstorm WarningBMXJefferson47 min
Nov 1, 12:47 PM CSTSevere Thunderstorm WarningBMXGreene48 min
Nov 1, 1:14 PM CSTSevere Thunderstorm WarningBMXMarengo46 min
Nov 1, 1:22 PM CSTSevere Thunderstorm WarningBMXHale63 min
Nov 1, 1:45 PM CSTSevere Thunderstorm WarningBMXPerry35 min
Nov 1, 1:58 PM CSTSevere Thunderstorm WarningBMXLauderdale, Limestone47 min
Nov 1, 2:03 PM CSTSevere Thunderstorm WarningBMXJefferson, St. Clair47 min
Nov 1, 2:03 PM CSTSevere Thunderstorm WarningBMXDallas32 min
Nov 1, 2:15 PM CSTSevere Thunderstorm WarningBMXMadison45 min
Nov 1, 2:25 PM CSTSevere Thunderstorm WarningBMXPerry35 min
Nov 1, 2:36 PM CSTSevere Thunderstorm WarningBMXBullock, Montgomery49 min
Nov 1, 2:49 PM CSTTornado WarningBMXRussell51 min
Nov 1, 2:56 PM CSTSevere Thunderstorm WarningBMXCalhoun, Talladega49 min
Nov 1, 3:12 PM CSTSevere Thunderstorm WarningBMXMacon33 min
Nov 1, 3:15 PM CSTSevere Thunderstorm WarningBMXBarbour50 min
Nov 1, 3:27 PM CSTSevere Thunderstorm WarningBMXMontgomery, Pike48 min
Nov 1, 3:36 PM CSTSevere Thunderstorm WarningBMXLee49 min
Nov 1, 3:53 PM CSTSevere Thunderstorm WarningBMXRussell47 min
Nov 1, 4:13 PM CSTSevere Thunderstorm WarningBMXBullock, Montgomery32 min
Nov 1, 4:21 PM CSTSevere Thunderstorm WarningBMXPike49 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.