Alert archive / Alabama / Tornado Watches in 1998

Tornado Watch 848

September 28, 199827 counties in Alabama; 15 counties in Florida; 21 counties in Georgia

The Storm Prediction Center issued this tornado watch at Sep 28, 1998, 10:00 PM CDT for 27 counties in Alabama; 15 counties in Florida; 21 counties in Georgia. It was in force for 12 hr.

The area

The outline as issued.

The facts

Issued
Sep 28, 1998, 10:00 PM CDT (03:00 UTC)
Expired
Sep 29, 1998, 10:00 AM CDT
In force
12 hr
Issued by
the Storm Prediction Center
All 63 counties

Autauga County, AL, Baldwin County, AL, Barbour County, AL, Bullock County, AL, Butler County, AL, Chambers County, AL, Clarke County, AL, Coffee County, AL, Conecuh County, AL, Covington County, AL, Crenshaw County, AL, Dale County, AL, Dallas County, AL, Elmore County, AL, Escambia County, AL, Geneva County, AL, Henry County, AL, Houston County, AL, Lee County, AL, Lowndes County, AL, Macon County, AL, Monroe County, AL, Montgomery County, AL, Pike County, AL, Russell County, AL, Washington County, AL, Wilcox County, AL, Bay County, FL, Calhoun County, FL, Escambia County, FL, Gadsden County, FL, Gulf County, FL, Holmes County, FL, Jackson County, FL, Jefferson County, FL, Leon County, FL, Liberty County, FL, Okaloosa County, FL, Santa Rosa County, FL, Wakulla County, FL, Walton County, FL, Washington County, FL, Baker County, GA, Calhoun County, GA, Chattahoochee County, GA, Clay County, GA, Decatur County, GA, Dougherty County, GA, Early County, GA, Grady County, GA, Harris County, GA, Marion County, GA, Miller County, GA, Mitchell County, GA, Muscogee County, GA, Quitman County, GA, Randolph County, GA, Seminole County, GA, Stewart County, GA, Terrell County, GA, Thomas County, GA, Troup County, GA, Webster County, GA

Warnings issued inside it

30 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

IssuedProductOfficeCountiesLasted
Sep 28, 11:27 PM CDTTornado WarningTAEEarly38 min
Sep 28, 11:35 PM CDTTornado WarningTAEMiller25 min
Sep 29, 12:27 AM CDTTornado WarningTAEGeneva23 min
Sep 29, 12:47 AM CDTFlash Flood WarningTAEWalton12 hr
Sep 29, 1:35 AM CDTTornado WarningTAEGeneva30 min
Sep 29, 2:34 AM CDTTornado WarningTAECoffee36 min
Sep 29, 2:51 AM CDTTornado WarningTAEGeneva19 min
Sep 29, 3:08 AM CDTTornado WarningMOBSanta Rosa37 min
Sep 29, 3:36 AM CDTTornado WarningTAEGrady, Mitchell49 min
Sep 29, 4:02 AM CDTTornado WarningBMXRussell48 min
Sep 29, 4:02 AM CDTFlash Flood WarningMOBBaldwin, Escambia7 hr
Sep 29, 4:02 AM CDTFlash Flood WarningMOBMobile, Washington7 hr
Sep 29, 4:02 AM CDTFlash Flood WarningMOBButler, Covington7 hr
Sep 29, 4:02 AM CDTFlash Flood WarningMOBOkaloosa7 hr
Sep 29, 4:22 AM CDTTornado WarningTAEGrady, Mitchell63 min
Sep 29, 5:14 AM CDTTornado WarningTAEDougherty, Mitchell61 min
Sep 29, 6:20 AM CDTFlash Flood WarningBMXDallas, Lowndes4 hr
Sep 29, 6:52 AM CDTTornado WarningTAEHolmes, Washington63 min
Sep 29, 7:08 AM CDTTornado WarningTAEGeneva47 min
Sep 29, 7:51 AM CDTFlash Flood WarningTAEGeneva6 hr
Sep 29, 7:51 AM CDTFlash Flood WarningTAEBay, Holmes, Washington6 hr
Sep 29, 8:07 AM CDTTornado WarningTAEBay48 min
Sep 29, 8:24 AM CDTTornado WarningTAEWashington31 min
Sep 29, 8:49 AM CDTTornado WarningTAEHolmes46 min
Sep 29, 9:03 AM CDTFlash Flood WarningMOBCrenshaw8 hr
Sep 29, 9:05 AM CDTTornado WarningTAEGeneva45 min
Sep 29, 9:13 AM CDTSevere Thunderstorm WarningTAEBay77 min
Sep 29, 9:49 AM CDTTornado WarningTAEGulf61 min
Sep 29, 9:50 AM CDTFlash Flood WarningBMXDallas, Lowndes, Montgomery6 hr
Sep 29, 9:50 AM CDTFlash Flood WarningBMXBarbour, Bullock, Pike6 hr

The nearest sounding before it

Birmingham, AL (KBMX), launched 00:00Z, 3.0 hours before the alert went out and 214 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 00:00Z on 1998-09-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 189 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 00:00Z on 1998-09-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 107 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
189 J/kg
Mixed-layer CIN
-31 J/kg
Mixed-layer LCL
715 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
107 m²/s²
0-3 km storm-relative helicity
175 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.

127 
WWUS9 KMKC 290245
SEL8  
MKC WW 290245
ALZ000-GAZ000-FLZ000-291500-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 848
STORM PREDICTION CENTER NORMAN OK
945 PM CDT MON SEP 28 1998

THE STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF

   SOUTHERN AND EASTERN ALABAMA                            
   SOUTHWEST AND WEST CENTRAL GEORGIA                            
   THE FLORIDA PANHANDLE                           
   AND ADJACENT COASTAL WATERS

EFFECTIVE THIS MONDAY NIGHT AND TUESDAY MORNING FROM 1000 PM UNTIL
1000 AM CDT.

TORNADOES...THUNDERSTORM WIND GUSTS TO 80 MPH...AND DANGEROUS
LIGHTNING ARE POSSIBLE IN THESE AREAS.

THE TORNADO WATCH AREA IS ALONG AND 105 STATUTE MILES EITHER SIDE
OF A LINE FROM 40 MILES WEST OF PENSACOLA FLORIDA TO 15 MILES NORTH
OF ALBANY GEORGIA.

REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA. 
PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING
WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE
WARNINGS.

OTHER WATCH INFORMATION...THIS TORNADO WATCH REPLACES TORNADO WATCH
NUMBER 845...TORNADO WATCH NUMBER 846.  WATCH NUMBER 845...846 WILL
NOT BE IN EFFECT AFTER 1000 PM CDT.  CONTINUE...WW 847...

DISCUSSION...WIND PROFILES REMAIN SUPPORTIVE OF LOW-LEVEL
MESOCYCLOGENESIS E AND N OF GEORGES.  GREATEST THREAT FOR
ISOLATED TORNADOES DURING THE OVERNIGHT HOURS EXPECTED TO BE OVER
SE AL/SW GA AND THE WRN HALF OF THE FL PANHANDLE...WHERE STRONGEST
LOW-LEVEL SHEAR IS PRESENT AND SURFACE-BASED CAPE LIKELY TO REMAIN
ABOVE 750 J/KG.   

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH EXTREME
TURBULENCE AND SURFACE WIND GUSTS TO 70 KNOTS.  A FEW CUMULONIMBI
WITH MAXIMUM TOPS TO 450.  MEAN STORM MOTION VECTOR 15040.


...CORFIDI

315,0883 330,0845 302,0833 290,0871

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Sep 29, 10:00 AM CDTTornado WatchSPCBarbour, Bullock, Chambers, Coffee, Coosa, Dale and 9 more9 hr
Sep 29, 6:00 PM CDTTornado WatchSPCAlachua, Baker, Bradford, Clay, Columbia, Dixie and 15 more10 hr

Nearby

Tornado Watches in Alabama, 1998Tornado Watches in Georgia, 1998Tornado Watches in Florida, 1998Every tornado watch 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.