Alert archive / Alabama / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 246, NWS Birmingham, AL

April 17, 1998Cherokee County, Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at Apr 17, 1998, 12:26 AM CDT for Cherokee County, Alabama. It was in force for 44 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 17, 1998, 12:26 AM CDT (05:26 UTC)
Expired
Apr 17, 1998, 1:10 AM CDT
In force
44 min
Issued by
NWS Birmingham, AL
Area
Whole counties

County Cherokee County, AL

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Apr 16, 9:15 PM CDTTornado WatchSPC6 hr

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 5.4 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 00:00Z on 1998-04-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1217 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 00:00Z on 1998-04-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 280 square meters per square second.1939587897117Sfc1 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
1217 J/kg
Mixed-layer CIN
-7 J/kg
Mixed-layer LCL
573 m above ground
0-6 km bulk shear
69 kt
0-1 km storm-relative helicity
280 m²/s²
0-3 km storm-relative helicity
368 m²/s²
Significant tornado parameter
3.0
Supercell composite
10.6

Open this sounding in Storm Lab

The text

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

079 
WUUS1 KBHM 170527 RRA
SVRBHM
ALC019-170610-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BIRMINGHAM AL
1226 AM CDT FRI APR 17 1998

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A

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

* UNTIL 110 AM CDT

* AT 1222 AM CDT... A SEVERE THUNDERSTORM WAS SHOWN... 4 MILES
  SOUTHWEST OF SAND ROCK... BY WEATHER RADAR... MOVING EAST 45 MPH.

* SEVERE THUNDERSTORM WILL BE NEAR...
  CEDAR BLUFF AROUND 1235 AM CDT ...
  BLANCHE AROUND 1235 AM CDT ...
  GAYLESVILLE AROUND 1237 AM CDT...

THIS IS A DANGEROUS STORM STAY INDOORS AWAY FROM WINDOWS.

A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA. REMEMBER...
SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES
WITH LITTLE OR NO ADVANCE WARNING. REMAIN CALM BUT BE ALERT FOR
RAPIDLY CHANGING WEATHER CONDITIONS.

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

Local storm report, Apr 16, 7:53 PM CDT, 4 hours 33 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BIRMINGHAM
753 PM CDT THU APR 16 1998

TIME(CDT)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0648 PM    TUSCUMBIA                 AL   .75 INCH HAIL
04/16/98   COLBERT                        DIME SIZE HAIL 5 SOUTH
                                          TUSCUMBIA...REPORTED BY
                                          HAMS.

0703 PM    MUSCLE SHOALS             AL   .75 INCH HAIL
04/16/98   COLBERT                        DIME SIZE HAIL AND HIGH
                                          WIND IN MUSCLE
                                          SHOALS...REPORTED BY HAMS.

0711 PM                              AL   .88 INCH HAIL
04/16/98   COLBERT                        NICKEL SIZED HAIL NEAR
                                          HIGHWAY 24 AND
                                          48...REPORTED BY HAMS.

0725 PM                              AL   TORNADO
04/16/98   LAMAR                          TORNADO BETWEEN
                                          MISSISSIPPI STATE LINE AND
                                          VERNON...REPORTED BY EMA.

0730 PM                              AL   1.75 INCH HAIL
04/16/98   LAMAR                          GOLFBALL SIZED HAIL IN
                                          SOUTHERN LAMAR
                                          COUNTY...REPORTED BY EMA.

0734 PM    TUSCUMBIA                 AL   WIND DAMAGE
04/16/98   COLBERT                        BUILDING DESTROYED AND ONE
                                          MORE MOVED OFF
                                          FOUNDATION...7 MILES SW
                                          NEAR COUNTY RD.
                                          41...REPORTED BY HAMS.
Local storm report, Apr 16, 8:17 PM CDT, 4 hours 9 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BIRMINGHAM
817 PM CDT THU APR 16 1998

TIME(CDT)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0726 PM                              AL   TORNADO
04/16/98   LAMAR                          POSSIBLE
                                          TORNADO...NUMEROUS TREES
                                          DOWN SW OF VERNON ON
                                          COUNTY RD. 9 NEAR THE
                                          DEMMAN CROSSROADS
                                          COMMUNITY.

0750 PM                              AL   WIND DAMAGE
04/16/98   LAMAR                          DAMAGE TO A CHURCH IN THE
                                          STARR COMMUNITY.

0813 PM    ATHENS                    AL   TORNADO
04/16/98   LIMESTONE                      POSSIBLE TORNADO JUST EAST
                                          OF ATHENS REPORTED BY
                                          STORM SPOTTERS AND HAMS.
Special weather statement, Apr 16, 9:16 PM CDT, 3 hours 10 minutes before
ALZ001>005-007-011>015-022-023-030-031-051-170250-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
916 PM CDT THU APR 16 1998

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

IN ALABAMA

   ...LAUDERDALE... COLBERT... FRANKLIN... LAWRENCE... LIMESTONE
   ...MORGAN... MARION... LAMAR... FAYETTE... WINSTON... WALKER
   ...PICKENS... TUSCALOOSA... SUMTER... GREENE... CHOCTAW

SEVERE WEATHER IS NO LONGER A THREAT IN THESE COUNTIES.
Special weather statement, Apr 16, 9:16 PM CDT, 3 hours 10 minutes before
ALZ001>005-007-011>015-022-023-030-031-051-170250-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
916 PM CDT THU APR 16 1998

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

IN ALABAMA

   ...LAUDERDALE... COLBERT... FRANKLIN... LAWRENCE... LIMESTONE
   ...MORGAN... MARION... LAMAR... FAYETTE... WINSTON... WALKER
   ...PICKENS... TUSCALOOSA... SUMTER... GREENE... CHOCTAW

SEVERE WEATHER IS NO LONGER A THREAT IN THESE COUNTIES.
Special weather statement, Apr 16, 11:36 PM CDT, 50 minutes before
ALZ006-009-170510-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
1136 PM CDT THU APR 16 1998

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

IN ALABAMA

   ...MADISON... JACKSON

SEVERE WEATHER IS NO LONGER A THREAT SINCE THUNDERSTORMS HAVE MOVED
EAST OF THE COUNTIES.
Special weather statement, Apr 16, 11:36 PM CDT, 50 minutes before
ALZ006-009-170510-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
1136 PM CDT THU APR 16 1998

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

IN ALABAMA

   ...MADISON... JACKSON

SEVERE WEATHER IS NO LONGER A THREAT SINCE THUNDERSTORMS HAVE MOVED
EAST OF THE COUNTIES.

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 16, 7:01 PM CDTSevere Thunderstorm WarningBMXLawrence49 min
Apr 16, 7:01 PM CDTSevere Thunderstorm WarningBMXColbert34 min
Apr 16, 7:11 PM CDTTornado WarningBMXLamar49 min
Apr 16, 7:14 PM CDTSevere Thunderstorm WarningBMXLauderdale51 min
Apr 16, 7:35 PM CDTTornado WarningBMXFayette45 min
Apr 16, 7:48 PM CDTTornado WarningBMXLimestone47 min
Apr 16, 8:03 PM CDTTornado WarningBMXWalker47 min
Apr 16, 8:14 PM CDTTornado WarningBMXMadison66 min
Apr 16, 8:29 PM CDTTornado WarningBMXJackson61 min
Apr 16, 8:32 PM CDTTornado WarningBMXWinston48 min
Apr 16, 8:35 PM CDTTornado WarningBMXCullman65 min
Apr 16, 8:36 PM CDTSevere Thunderstorm WarningBMXLimestone34 min
Apr 16, 9:05 PM CDTTornado WarningBMXBlount60 min
Apr 16, 9:32 PM CDTTornado WarningBMXEtowah63 min
Apr 16, 9:34 PM CDTTornado WarningBMXJackson36 min
Apr 16, 9:40 PM CDTSevere Thunderstorm WarningBMXMarshall50 min
Apr 16, 9:43 PM CDTTornado WarningBMXSt. Clair32 min
Apr 16, 10:05 PM CDTTornado WarningBMXMarshall35 min
Apr 16, 10:06 PM CDTTornado WarningBMXDeKalb64 min
Apr 16, 10:13 PM CDTTornado WarningBMXCherokee47 min
Apr 16, 10:38 PM CDTSevere Thunderstorm WarningBMXMarshall32 min
Apr 16, 11:07 PM CDTTornado WarningBMXDeKalb48 min
Apr 16, 11:25 PM CDTSevere Thunderstorm WarningBMXCherokee50 min
Apr 17, 12:22 AM CDTSevere Thunderstorm WarningBMXJefferson48 min
Apr 17, 3:10 PM CDTSevere Thunderstorm WarningBMXBarbour50 min
Apr 17, 6:08 PM CDTSevere Thunderstorm WarningBMXBarbour47 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.