Alert archive / Alabama / Tornado Watches in 1998

Tornado Watch 846

September 28, 199820 counties in Alabama; Lowndes County, Mississippi

The Storm Prediction Center issued this tornado watch at Sep 28, 1998, 3:00 PM CDT for 20 counties in Alabama; Lowndes County, Mississippi. It was in force for 10 hr.

The area

The outline as issued.

The facts

Issued
Sep 28, 1998, 3:00 PM CDT (20:00 UTC)
Expired
Sep 29, 1998, 1:00 AM CDT
In force
10 hr
Issued by
the Storm Prediction Center
All 21 counties

Autauga County, AL, Bibb County, AL, Bullock County, AL, Chambers County, AL, Chilton County, AL, Coosa County, AL, Dallas County, AL, Elmore County, AL, Greene County, AL, Hale County, AL, Lee County, AL, Lowndes County, AL, Macon County, AL, Montgomery County, AL, Perry County, AL, Pickens County, AL, Shelby County, AL, Sumter County, AL, Tallapoosa County, AL, Tuscaloosa County, AL, Lowndes County, MS

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
Sep 28, 3:02 PM CDTTornado WarningBMXBullock33 min
Sep 28, 3:31 PM CDTTornado WarningBMXBullock34 min
Sep 28, 4:02 PM CDTTornado WarningBMXMacon33 min
Sep 28, 4:15 PM CDTTornado WarningBMXBullock40 min
Sep 28, 4:30 PM CDTTornado WarningBMXElmore35 min
Sep 28, 4:34 PM CDTTornado WarningBMXMacon36 min
Sep 28, 4:49 PM CDTTornado WarningBMXBullock36 min
Sep 28, 5:03 PM CDTTornado WarningBMXElmore32 min
Sep 28, 5:12 PM CDTTornado WarningBMXMacon, Montgomery33 min
Sep 28, 5:20 PM CDTTornado WarningBMXLee, Russell30 min
Sep 28, 5:38 PM CDTTornado WarningBMXElmore32 min
Sep 28, 7:15 PM CDTTornado WarningBMXLee, Macon35 min
Sep 28, 7:48 PM CDTTornado WarningBMXLee17 min
Sep 28, 8:03 PM CDTTornado WarningBMXTallapoosa27 min

The nearest sounding before it

Birmingham, AL (KBMX), launched 12:00Z, 8.0 hours before the alert went out and 49 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, 1:00 PM CDTTornado WatchSPCBaldwin, Barbour, Butler, Choctaw, Clarke, Coffee and 13 more12 hr

Nearby

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