Alert archive / Alabama / Tornado Warnings in 2001

Tornado Warning 45, NWS Birmingham, AL

October 13, 2001Tuscaloosa County, Alabama

NWS Birmingham, AL issued this tornado warning at Oct 13, 2001, 5:31 PM CDT for Tuscaloosa County, Alabama. It was in force for 29 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: Oct 13, 2001, 5:31 PM CDT (22:31 UTC)
Expired: Oct 13, 2001, 6:00 PM CDT
In force: 29 min
Issued by: NWS Birmingham, AL
Area: Whole counties

County Tuscaloosa County, AL

The watch it was issued in

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

Issued	Product	Office	Lasted
Oct 13, 12:15 PM CDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Birmingham, AL (KBMX), launched 12:00Z, 10.5 hours before the alert went out and 70 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 185 J/kg
Mixed-layer CIN: -20 J/kg
Mixed-layer LCL: 592 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 233 m²/s²
0-3 km storm-relative helicity: 264 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 2.3

Open this sounding in Storm Lab

The text

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

231 
WFUS54 KBMX 132231
TORBHM
ALC125-132300-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE BIRMINGHAM AL
531 PM CDT SAT OCT 13 2001

THE NATIONAL WEATHER SERVICE HAS ISSUED A

* TORNADO WARNING FOR...
  TUSCALOOSA COUNTY IN WEST CENTRAL ALABAMA

* UNTIL 600 PM CDT

* AT 529 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  TORNADO 12 MILES SOUTHWEST OF NORTHPORT...MOVING NORTHEAST AT 20
  MPH.

* LOCATIONS NEAR THE PATH OF THIS TORNADO INCLUDE...NORTHPORT AND
TUSCALOOSA.

THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...SEEK SHELTER NOW.
STAY AWAY FROM WINDOWS.

The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 13, 1:48 PM CDT	Severe Thunderstorm Warning	BMX	Greene, Pickens, Sumter	27 min
Oct 13, 2:03 PM CDT	Tornado Warning	BMX	Greene, Pickens	27 min
Oct 13, 2:10 PM CDT	Severe Thunderstorm Warning	BMX	Hale, Marengo, Perry	35 min
Oct 13, 2:33 PM CDT	Tornado Warning	BMX	Dallas	27 min
Oct 13, 2:59 PM CDT	Severe Thunderstorm Warning	BMX	Dallas, Perry	46 min
Oct 13, 3:34 PM CDT	Tornado Warning	BMX	Sumter	56 min
Oct 13, 3:38 PM CDT	Severe Thunderstorm Warning	BMX	Pickens	52 min
Oct 13, 3:49 PM CDT	Tornado Warning	BMX	Bibb, Perry	26 min
Oct 13, 3:57 PM CDT	Severe Thunderstorm Warning	BMX	Lamar	48 min
Oct 13, 4:28 PM CDT	Severe Thunderstorm Warning	BMX	Greene, Sumter	47 min
Oct 13, 4:32 PM CDT	Severe Thunderstorm Warning	BMX	Pickens	28 min
Oct 13, 5:49 PM CDT	Severe Thunderstorm Warning	BMX	Fayette, Walker	41 min
Oct 13, 5:58 PM CDT	Severe Thunderstorm Warning	BMX	Winston	32 min

Nearby

Tornado Warnings in Alabama, 2001 Every tornado warning in 2001 Tornadoes 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.