Alert archive / Alabama / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 511, NWS Birmingham, AL

November 1, 1997Calhoun County, Talladega County, Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at Nov 1, 1997, 2:56 PM CST for Calhoun County, Talladega County, Alabama. It was in force for 49 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, 2:56 PM CST (20:56 UTC)
Expired
Nov 1, 1997, 3:45 PM CST
In force
49 min
Issued by
NWS Birmingham, AL
Area
Whole counties

Counties Calhoun County, AL, Talladega County, AL

What was reported inside it

TimeReportWhereRemark
Nov 1, 3:30 PM CSTThunderstorm Wind 50Oxford, ALNumerous trees and power lines were reported down in Calhoun County. A tree fell on a house in Oxford.

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 nearest sounding before it

Birmingham, AL (KBMX), launched 12:00Z, 8.9 hours before the alert went out and 85 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 12:00Z on 1997-11-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 12:00Z on 1997-11-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 105 square meters per square second.193958Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
753 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
105 m²/s²
0-3 km storm-relative helicity
152 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 012057 RRA
SVRBHM
ALC015-121-012145-

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


THE NATIONAL WEATHER SERVICE IN BIRMINGHAM AL HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 345 PM CST
FOR PEOPLE IN THE FOLLOWING LOCATIONS...

IN EAST CENTRAL ALABAMA

   ...CALHOUN COUNTY...

IN CENTRAL ALABAMA

   ...TALLADEGA COUNTY...

AT 253 PM CST... WEATHER RADAR SHOWED AN AREA OF SEVERE THUNDERSTORMS
ALONG THE WESTERN BORDERS OF CALHOUN AND TALLEDEGA COUNTIES. THESE
STORMS HAVE A HISTORY OF PRODUCTING HAIL.

<<CALL TO ACTION>>
WHEN THUNDERSTORMS ARE OCCURRING... PEOPLE SHOULD MOVE INSIDE A
STRONG BUILDING. ZDO NOT STAND BY WINDOWS. DO NOT USE TELEPHONES OR
ELECTRICAL APPLIANCES UNLESS IN AN EMERGENCY UNTIL THE STORM HAS
PASSED. MOTORISTS SHOULD NOT DRIVE INTO LOW WATER CROSSINGS.

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, 2:30 PM CSTSevere Thunderstorm WarningBMXPike50 min
Nov 1, 2:36 PM CSTSevere Thunderstorm WarningBMXBullock, Montgomery49 min
Nov 1, 2:49 PM CSTTornado WarningBMXRussell51 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.