Alert archive / Alabama / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 396, NWS Birmingham, AL

June 4, 1998Cherokee County, Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at Jun 4, 1998, 1:03 PM CDT for Cherokee County, Alabama. It was in force for 47 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
Jun 4, 1998, 1:03 PM CDT (18:03 UTC)
Expired
Jun 4, 1998, 1:50 PM CDT
In force
47 min
Issued by
NWS Birmingham, AL
Area
Whole counties

County Cherokee County, AL

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 6.1 hours before the alert went out and 136 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, Peachtre/Fal Fld, GA at 12:00Z on 1998-06-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2419 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, Peachtre/Fal Fld, GA at 12:00Z on 1998-06-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 85 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
2419 J/kg
Mixed-layer CIN
-25 J/kg
Mixed-layer LCL
685 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
85 m²/s²
0-3 km storm-relative helicity
67 m²/s²
Significant tornado parameter
0.9
Supercell composite
4.0

Open this sounding in Storm Lab

The text

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

508 
WUUS1 KBHM 041806 RRA
SVRBHM
ALC019-041850-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BIRMINGHAM AL
103 PM CDT THU JUN 4 1998

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CHEROKEE COUNTY... IN NORTHERN ALABAMA

* UNTIL 150 PM CDT

* AT 101 PM CDT... A SEVERE THUNDERSTORM WAS SHOWN...BY WEATHER RADAR
NEAR LEESBURG. THE STORM WAS MOVING NORTHEAST AT 25 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...GALYESVILLE BY 115 PM.

DAMAGING WINDS AND HEAVY RAIN ARE LIKELY. GO INSIDE A STURDY BUILDING
AND STAY AWAY FROM WINDOWS

IF YOU ARE OUTDOORS...MOVE TO A PLACE OF SHELTER IMMEDIATELY IF A
STORM APPROACHES.  MOTORISTS SHOULD REMAIN ALERT FOR REDUCED
VISIBILITIES DURING DOWNPOURS OF RAIN.  STREETS MAY FLOOD QUICKLY.

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, Jun 4, 10:05 AM CDT, 2 hours 58 minutes before
ALZ001>050-GAZ089-090-102-120-050300-

HAZARDOUS WEATHER OUTLOOK
FOR NORTH/CENTRAL AL AND WEST CENTRAL GA
NATIONAL WEATHER SERVICE BIRMINGHAM AL
1005 AM CDT THU JUN 4 1998

THE HIGH PRESSURE RIDGE THAT HAS KEPT THE AREA DRY FOR THE PAST FEW
WEEKS HAS STARTED TO BREAK DOWN.  SHOWERS HAVE BEGUN TO DEVELOP IN
NORTHERN ALABAMA...AND ADDITIONAL SHOWER AND THUNDERSTORM DEVELOPMENT
IS EXPECTED ACROSS THE AREA THROUGH THIS AFTERNOON AND INTO TONIGHT.

AS TEMPERATURES CLIMB THIS AFTERNOON...THE AIRMASS WILL BECOME VERY
UNSTABLE.  THIS WILL ALLOW THUNDERSTORMS TO BECOME VERY STRONG...
ESPECIALLY DURING THE PEAK HEATING OF THE AFTERNOON AND EARLY EVENING.
A FEW STORMS MAY EVEN BECOME SEVERE...AND THE STORM PREDICTION CENTER
HAS PLACED THE NORTHERN TWO THIRDS AND ALABAMA AND GEORGIA UNDER A
SLIGHT RISK OF SEVERE THUNDERSTORMS.

THE THUNDERSTORMS THIS AFTERNOON WILL BE MAINLY PULSE TYPE...WHICH
CAN GROW AND DIMINISH RAPIDLY.  THE PRIMARY SEVERE WEATHER THREAT FROM
THIS TYPE OF THUNDERSTORM IS GENERALLY DAMAGING WINDS AND LARGE HAIL.
LATER IN THE AFTERNOON...AND TONIGHT...LINES OF THUNDERSTORMS WITH
DAMAGING WINDS WILL ALSO BECOME A POSSIBILITY.

STORM SPOTTERS AND EMERGENCY MANAGEMENT PERSONNEL SHOULD REMAIN ALERT
FOR CHANGING WEATHER CONDITIONS AND MONITOR NOAA WEATHER RADIO OR
LOCAL TV AND RADIO FOR POSSIBLE WARNINGS THROUGH TONIGHT.

THE HAZARDOUS WEATHER OUTLOOK FOR SOUTHWEST ALABAMA... SEE PRODUCT
BHMSPSMOB. FOR SOUTHEAST ALABAMA... LOOK AT MIASPSTLH.  FOR MORE
WEATHER INFORMATION VISIT OUR INTERNET SITE ON THE WORLD WIDE WEB AT
HTTP://WWW.ACESAG.AUBURN.EDU/DEPARTMENT/NWS/
Special weather statement, Jun 4, 10:05 AM CDT, 2 hours 58 minutes before
ALZ001>050-GAZ089-090-102-120-050300-

HAZARDOUS WEATHER OUTLOOK
FOR NORTH/CENTRAL AL AND WEST CENTRAL GA
NATIONAL WEATHER SERVICE BIRMINGHAM AL
1005 AM CDT THU JUN 4 1998

THE HIGH PRESSURE RIDGE THAT HAS KEPT THE AREA DRY FOR THE PAST FEW
WEEKS HAS STARTED TO BREAK DOWN.  SHOWERS HAVE BEGUN TO DEVELOP IN
NORTHERN ALABAMA...AND ADDITIONAL SHOWER AND THUNDERSTORM DEVELOPMENT
IS EXPECTED ACROSS THE AREA THROUGH THIS AFTERNOON AND INTO TONIGHT.

AS TEMPERATURES CLIMB THIS AFTERNOON...THE AIRMASS WILL BECOME VERY
UNSTABLE.  THIS WILL ALLOW THUNDERSTORMS TO BECOME VERY STRONG...
ESPECIALLY DURING THE PEAK HEATING OF THE AFTERNOON AND EARLY EVENING.
A FEW STORMS MAY EVEN BECOME SEVERE...AND THE STORM PREDICTION CENTER
HAS PLACED THE NORTHERN TWO THIRDS AND ALABAMA AND GEORGIA UNDER A
SLIGHT RISK OF SEVERE THUNDERSTORMS.

THE THUNDERSTORMS THIS AFTERNOON WILL BE MAINLY PULSE TYPE...WHICH
CAN GROW AND DIMINISH RAPIDLY.  THE PRIMARY SEVERE WEATHER THREAT FROM
THIS TYPE OF THUNDERSTORM IS GENERALLY DAMAGING WINDS AND LARGE HAIL.
LATER IN THE AFTERNOON...AND TONIGHT...LINES OF THUNDERSTORMS WITH
DAMAGING WINDS WILL ALSO BECOME A POSSIBILITY.

STORM SPOTTERS AND EMERGENCY MANAGEMENT PERSONNEL SHOULD REMAIN ALERT
FOR CHANGING WEATHER CONDITIONS AND MONITOR NOAA WEATHER RADIO OR
LOCAL TV AND RADIO FOR POSSIBLE WARNINGS THROUGH TONIGHT.

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

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 4, 12:40 PM CDTSevere Thunderstorm WarningBMXCullman35 min
Jun 4, 12:48 PM CDTSevere Thunderstorm WarningBMXBlount47 min
Jun 4, 1:11 PM CDTSevere Thunderstorm WarningBMXLauderdale34 min
Jun 4, 1:21 PM CDTSevere Thunderstorm WarningBMXMadison49 min
Jun 4, 1:32 PM CDTSevere Thunderstorm WarningBMXBlount33 min
Jun 4, 1:37 PM CDTSevere Thunderstorm WarningBMXCullman48 min
Jun 4, 1:48 PM CDTSevere Thunderstorm WarningBMXEtowah47 min
Jun 4, 1:52 PM CDTFlash Flood WarningBMXCullman3 hr
Jun 4, 2:21 PM CDTFlash Flood WarningBMXFranklin2 hr
Jun 4, 2:24 PM CDTSevere Thunderstorm WarningBMXBlount66 min
Jun 4, 2:29 PM CDTFlash Flood WarningBMXBlount, Cherokee, Etowah3 hr
Jun 4, 2:53 PM CDTSevere Thunderstorm WarningBMXCherokee47 min
Jun 4, 3:47 PM CDTFlash Flood WarningBMXCullman, Winston2 hr
Jun 4, 4:39 PM CDTSevere Thunderstorm WarningBMXCherokee, Etowah46 min
Jun 4, 6:26 PM CDTSevere Thunderstorm WarningBMXShelby34 min
Jun 4, 6:58 PM CDTSevere Thunderstorm WarningBMXShelby, Talladega32 min

Nearby

Severe Thunderstorm Warnings in Alabama, 1998Every severe thunderstorm warning in 1998

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.