Alert archive / Alabama / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 445, NWS Birmingham, AL

July 28, 1997DeKalb County, Jackson County, Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at Jul 28, 1997, 2:10 PM CDT for DeKalb County, Jackson County, Alabama. It was in force for 65 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
Jul 28, 1997, 2:10 PM CDT (19:10 UTC)
Expired
Jul 28, 1997, 3:15 PM CDT
In force
65 min
Issued by
NWS Birmingham, AL
Area
Whole counties

Counties DeKalb County, AL, Jackson County, AL

What was reported inside it

TimeReportWhereRemark
Jul 28, 2:10 PM CDTThunderstorm Wind 50Scottsboro, ALTrees were blown down in Scottsboro.

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, 7.2 hours before the alert went out and 179 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 1997-07-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1583 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 12:00Z on 1997-07-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 54 square meters per square second.1939Sfc1 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
1583 J/kg
Mixed-layer CIN
-69 J/kg
Mixed-layer LCL
879 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
54 m²/s²
0-3 km storm-relative helicity
106 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.8

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KHSV 281912 COR
SVRHSV
ALC071-282015-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE HUNTSVILLE AL
210 PM CDT MON JUL 28 1997

THE NATIONAL WEATHER SERVICE IN HUNTSVILLE HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  315 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...

IN NORTH ALABAMA

   ...DE KALB COUNTY

AT 207 THIS AFTERNOON NATIONAL WEATHER SERVICE RADAR INDICATED A
POSSIBLE SEVERE THUNDERSTORM IN NORTHERN DE KALB COUNTY NEAR IDER AND
BEATY CROSSROADS.

THIS THUNDERSTORM WAS MOVING SOUTH SOUTHEAST AT AROUND 10 MILES AN HOUR.
A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHERN JACKSON
COUNTY UNTIL 230 PM.


WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A
STRONG BUILDING.  DO NOT STAND BY WINDOWS.  DON'T USE TELEPHONES
OR ELECTRICAL APPLIANCES UNLESS IN AN EMERGENCY UNTIL THE STORM
HAS PASSED.  MOTORISTS SHOULD NOT DRIVE INTO LOW WATER CROSSINGS.
1 follow-up statement
000 
TTAA00 KHSV 281916 RRB
SVRHSV
ALC049-282015-

BULLETIN - IMMEDIATE BROADCAST REQUESTED...CORRECTION
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE HUNTSVILLE AL
210 PM CDT MON JUL 28 1997

THE NATIONAL WEATHER SERVICE IN HUNTSVILLE HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  315 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...

IN NORTH ALABAMA

   ...DE KALB COUNTY

AT 207 THIS AFTERNOON NATIONAL WEATHER SERVICE RADAR INDICATED A
POSSIBLE SEVERE THUNDERSTORM IN NORTHERN DE KALB COUNTY NEAR IDER AND
BEATY CROSSROADS.

THIS THUNDERSTORM WAS MOVING SOUTH SOUTHEAST AT AROUND 10 MILES AN HOUR.
A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHERN JACKSON
COUNTY UNTIL 230 PM.


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

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, Jul 28, 9:47 AM CDT, 4 hours 23 minutes before
ALZ001>050-GAZ089-090-102-120-290240-

HAZARDOUS WEATHER OUTLOOK
FOR NORTH/CENTRAL AL AND WEST CENTRAL GA
NATIONAL WEATHER SERVICE BIRMINGHAM AL
947 AM CDT MON JUL 28 1997

A LARGE AREA OF HIGH PRESSURE WILL CONTINUE ACROSS MOST OF
NORTHERN ALABAMA TODAY.  HOWEVER...THERE WILL BE ENOUGH MOISTURE AND
INSTABILITY TO PROVIDE A CHANCE OF SHOWERS AND THUNDERSTORMS ACROSS
THE NORTHERN HALF OF ALABAMA AND WEST CENTRAL GEORGIA LATE THIS
AFTERNOON.  STRONG GUSTY WINDS ARE POSSIBLE WITH SOME OF THESE
THUNDERSTORMS...BUT NO ORGANIZED SEVERE WEATHER IS EXPECTED.

TEMPERATURES ARE EXPECTED TO REACH INTO THE MIDDLE TO UPPER 90S
ONCE AGAIN THIS AFTERNOON.  THE HOT AND HUMID CONDITIONS WILL
AGAIN PUSH HEAT INDEX VALUES INTO THE 105 TO 110 DEGREE RANGE.

ACTIVATION OF STORM SPOTTERS AND EMERGENCY MANAGEMENT PERSONNEL
SHOULD NOT BE NECESSARY.  FOR THE SOUTHERN ALABAMA HAZARDOUS
WEATHER OUTLOOK...SEE PRODUCT BHMSPSMOB.
Special weather statement, Jul 28, 9:48 AM CDT, 4 hours 22 minutes before
ALZ001>050-GAZ089-090-102-120-290240-

HAZARDOUS WEATHER OUTLOOK
FOR NORTH/CENTRAL AL AND WEST CENTRAL GA
NATIONAL WEATHER SERVICE BIRMINGHAM AL
947 AM CDT MON JUL 28 1997

A LARGE AREA OF HIGH PRESSURE WILL CONTINUE ACROSS MOST OF
NORTHERN ALABAMA TODAY.  HOWEVER...THERE WILL BE ENOUGH MOISTURE AND
INSTABILITY TO PROVIDE A CHANCE OF SHOWERS AND THUNDERSTORMS ACROSS
THE NORTHERN HALF OF ALABAMA AND WEST CENTRAL GEORGIA LATE THIS
AFTERNOON.  STRONG GUSTY WINDS ARE POSSIBLE WITH SOME OF THESE
THUNDERSTORMS...BUT NO ORGANIZED SEVERE WEATHER IS EXPECTED.

TEMPERATURES ARE EXPECTED TO REACH INTO THE MIDDLE TO UPPER 90S
ONCE AGAIN THIS AFTERNOON.  THE HOT AND HUMID CONDITIONS WILL
AGAIN PUSH HEAT INDEX VALUES INTO THE 105 TO 110 DEGREE RANGE.

ACTIVATION OF STORM SPOTTERS AND EMERGENCY MANAGEMENT PERSONNEL
SHOULD NOT BE NECESSARY.  FOR THE SOUTHERN ALABAMA HAZARDOUS
WEATHER OUTLOOK...SEE PRODUCT BHMSPSMOB.

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 27, 9:26 PM CDTSevere Thunderstorm WarningBMXRussell59 min
Jul 27, 9:53 PM CDTSevere Thunderstorm WarningBMXBarbour47 min
Jul 28, 12:19 PM CDTSevere Thunderstorm WarningBMXMarengo31 min
Jul 28, 12:32 PM CDTSevere Thunderstorm WarningBMXCherokee48 min
Jul 28, 1:50 PM CDTSevere Thunderstorm WarningBMXJackson40 min
Jul 28, 2:33 PM CDTSevere Thunderstorm WarningBMXCalhoun57 min
Jul 28, 2:53 PM CDTSevere Thunderstorm WarningBMXMadison52 min
Jul 28, 3:18 PM CDTSevere Thunderstorm WarningBMXMorgan57 min
Jul 28, 3:40 PM CDTSevere Thunderstorm WarningBMXMarshall65 min
Jul 28, 3:54 PM CDTSevere Thunderstorm WarningBMXRandolph51 min
Jul 28, 3:58 PM CDTSevere Thunderstorm WarningBMXBlount, Cullman47 min
Jul 28, 4:11 PM CDTSevere Thunderstorm WarningBMXJefferson49 min
Jul 28, 4:15 PM CDTSevere Thunderstorm WarningBMXShelby60 min
Jul 28, 4:41 PM CDTSevere Thunderstorm WarningBMXTallapoosa64 min
Jul 28, 4:50 PM CDTSevere Thunderstorm WarningBMXBibb, Chilton40 min
Jul 28, 5:06 PM CDTSevere Thunderstorm WarningBMXCoosa54 min
Jul 28, 5:28 PM CDTSevere Thunderstorm WarningBMXBibb, Chilton47 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.