Alert archive / Alabama / Tornado Watches in 1998

Tornado Watch 845

September 28, 199819 counties in Alabama; 9 counties in Florida; 10 counties in Mississippi

The Storm Prediction Center issued this tornado watch at Sep 28, 1998, 1:00 PM CDT for 19 counties in Alabama; 9 counties in Florida; 10 counties in Mississippi. It was in force for 12 hr.

The area

The outline as issued.

The facts

Issued
Sep 28, 1998, 1:00 PM CDT (18:00 UTC)
Expired
Sep 29, 1998, 1:00 AM CDT
In force
12 hr
Issued by
the Storm Prediction Center
All 38 counties

Baldwin County, AL, Barbour County, AL, Butler County, AL, Choctaw County, AL, Clarke County, AL, Coffee County, AL, Conecuh County, AL, Covington County, AL, Crenshaw County, AL, Dale County, AL, Escambia County, AL, Geneva County, AL, Henry County, AL, Houston County, AL, Mobile County, AL, Monroe County, AL, Pike County, AL, Washington County, AL, Wilcox County, AL, Bay County, FL, Calhoun County, FL, Escambia County, FL, Holmes County, FL, Jackson County, FL, Okaloosa County, FL, Santa Rosa County, FL, Walton County, FL, Washington County, FL, Clarke County, MS, George County, MS, Greene County, MS, Harrison County, MS, Jackson County, MS, Jasper County, MS, Jones County, MS, Perry County, MS, Stone County, MS, Wayne County, MS

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
Sep 28, 1:13 PM CDTTornado WarningTAECoffee32 min
Sep 28, 1:35 PM CDTTornado WarningBMXPike40 min
Sep 28, 1:55 PM CDTTornado WarningBMXBarbour20 min
Sep 28, 2:01 PM CDTTornado WarningMOBCrenshaw44 min
Sep 28, 2:10 PM CDTTornado WarningBMXPike35 min
Sep 28, 2:43 PM CDTTornado WarningBMXBarbour17 min
Sep 28, 3:16 PM CDTTornado WarningBMXBarbour19 min
Sep 28, 3:36 PM CDTTornado WarningBMXPike34 min
Sep 28, 5:53 PM CDTTornado WarningBMXBarbour32 min
Sep 28, 5:56 PM CDTTornado WarningBMXBarbour34 min
Sep 28, 6:20 PM CDTFlash Flood WarningTAEWalton7 hr
Sep 28, 7:23 PM CDTTornado WarningMOBCovington37 min
Sep 28, 7:55 PM CDTTornado WarningTAEWalton15 min
Sep 28, 7:59 PM CDTFlash Flood WarningMOBButler, Covington8 hr
Sep 28, 7:59 PM CDTFlash Flood WarningMOBEscambia8 hr
Sep 28, 7:59 PM CDTFlash Flood WarningMOBBaldwin, Mobile, Washington8 hr
Sep 28, 7:59 PM CDTFlash Flood WarningMOBGeorge, Stone8 hr
Sep 28, 8:09 PM CDTTornado WarningMOBCovington36 min
Sep 28, 8:30 PM CDTTornado WarningTAEWalton15 min
Sep 28, 9:02 PM CDTTornado WarningMOBCovington73 min
Sep 28, 9:58 PM CDTTornado WarningMOBOkaloosa77 min
Sep 29, 12:27 AM CDTTornado WarningTAEGeneva23 min
Sep 29, 12:47 AM CDTFlash Flood WarningTAEWalton12 hr

The nearest sounding before it

Birmingham, AL (KBMX), launched 12:00Z, 6.0 hours before the alert went out and 218 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 1998-09-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 354 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 1998-09-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -28 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
354 J/kg
Mixed-layer CIN
-118 J/kg
Mixed-layer LCL
817 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
-28 m²/s²
0-3 km storm-relative helicity
-30 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Sep 28, 1:00 AM CDTTornado WatchSPCBaldwin, Barbour, Butler, Choctaw, Clarke, Coffee and 13 more12 hr
Sep 28, 3:00 PM CDTTornado WatchSPCAutauga, Bibb, Bullock, Chambers, Chilton, Coosa and 14 more10 hr

Nearby

Tornado Watches in Alabama, 1998Tornado Watches in Mississippi, 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.