Alert archive / Alabama / Severe Thunderstorm Watches in 2001

Severe Thunderstorm Watch 12

January 29, 200126 counties in Alabama; Escambia County, Santa Rosa County, Florida; Jackson County, Mississippi

The Storm Prediction Center issued this severe thunderstorm watch at Jan 29, 2001, 3:00 PM CST for 26 counties in Alabama; Escambia County, Santa Rosa County, Florida; Jackson County, Mississippi. It was in force for 4 hr.

The area

The outline as issued.

The facts

Issued
Jan 29, 2001, 3:00 PM CST (21:00 UTC)
Expired
Jan 29, 2001, 7:00 PM CST
In force
4 hr
Issued by
the Storm Prediction Center
All 29 counties

Autauga County, AL, Baldwin County, AL, Bibb County, AL, Butler County, AL, Chilton County, AL, Clarke County, AL, Clay County, AL, Conecuh County, AL, Coosa County, AL, Crenshaw County, AL, Dallas County, AL, Elmore County, AL, Escambia County, AL, Hale County, AL, Jefferson County, AL, Lowndes County, AL, Marengo County, AL, Mobile County, AL, Monroe County, AL, Montgomery County, AL, Perry County, AL, Shelby County, AL, Talladega County, AL, Tallapoosa County, AL, Washington County, AL, Wilcox County, AL, Escambia County, FL, Santa Rosa County, FL, Jackson County, MS

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
Jan 29, 3:28 PM CSTSevere Thunderstorm WarningMOBMarengo32 min
Jan 29, 3:34 PM CSTSevere Thunderstorm WarningBMXBibb, Perry56 min
Jan 29, 3:57 PM CSTSevere Thunderstorm WarningBMXJefferson63 min
Jan 29, 4:26 PM CSTSevere Thunderstorm WarningBMXDallas49 min
Jan 29, 4:30 PM CSTSevere Thunderstorm WarningBMXShelby30 min
Jan 29, 4:33 PM CSTSevere Thunderstorm WarningBMXChilton42 min

The nearest sounding before it

Birmingham, AL (KBMX), launched 12:00Z, 9.0 hours before the alert went out and 197 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 2001-01-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2001-01-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 252 square meters per square second.1939587897Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1127 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
252 m²/s²
0-3 km storm-relative helicity
275 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
Jan 29, 11:30 AM CSTSevere Thunderstorm WatchSPCChoctaw, Greene, Pickens, Sumter, Tuscaloosa5 hr
Jan 29, 8:00 AM CSTSevere Thunderstorm WatchSPCAdams, Amite, Claiborne, Copiah, Franklin, Hinds and 14 more6 hr

Nearby

Severe Thunderstorm Watches in Alabama, 2001Severe Thunderstorm Watches in Florida, 2001Severe Thunderstorm Watches in Mississippi, 2001Every severe thunderstorm watch in 2001

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.