Alert archive / Alabama / Tornado Warnings in 2001

Tornado Warning 15, NWS Birmingham, AL

February 25, 2001Perry County, Alabama

NWS Birmingham, AL issued this tornado warning at Feb 25, 2001, 1:55 AM CST for Perry County, Alabama. It was in force for 50 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.

The facts

Issued: Feb 25, 2001, 1:55 AM CST (07:55 UTC)
Expired: Feb 25, 2001, 2:45 AM CST
In force: 50 min
Issued by: NWS Birmingham, AL
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Perry County, AL

The radar

The Birmingham radar (KBMX), 100 km from the middle of the area, began a volume at 08:04 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The watch it was issued in

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

Issued	Product	Office	Lasted
Feb 24, 11:15 PM CST	Tornado Watch	SPC	4 hr

The nearest sounding before it

Birmingham, AL (KBMX), launched 00:00Z, 7.9 hours before the alert went out and 100 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: 19 J/kg
Mixed-layer CIN: -197 J/kg
Mixed-layer LCL: 599 m above ground
0-6 km bulk shear: 39 kt
0-1 km storm-relative helicity: 356 m²/s²
0-3 km storm-relative helicity: 510 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.

267 
WFUS54 KBMX 250755
TORBHM
ALC105-250845-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE BIRMINGHAM AL
155 AM CST SUN FEB 25 2001

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A

* TORNADO WARNING FOR...
  PERRY COUNTY IN CENTRAL ALABAMA

* UNTIL 245 AM CST

* AT 152 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  TORNADO 9 MILES SOUTHWEST OF UNIONTOWN...MOVING NORTHEAST AT 40
  MPH.

* LOCATIONS NEAR THE PATH OF THIS TORNADO INCLUDE...UNIONTOWN AND
MARION.

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

NIGHTTIME TORNADOES ARE ESPECIALLY DANGEROUS. TAKE COVER NOW. IF YOU
WAIT UNTIL YOU CAN SEE OR HEAR IT COMING...IT MAY BE TOO LATE.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 200 AM CST SUNDAY MORNING FOR
NORTHWEST ALABAMA. A TORNADO WATCH ALSO REMAINS IN EFFECT UNTIL 300
AM CST SUNDAY MORNING FOR ALABAMA.

LAT...LON 3234 8774 3224 8757 3275 8710 3289 8734

The office that day

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

Issued	Product	Office	Counties	Lasted
Feb 24, 11:49 PM CST	Severe Thunderstorm Warning	BMX	Colbert, Lauderdale	56 min
Feb 25, 12:44 AM CST	Severe Thunderstorm Warning	BMX	Colbert, Franklin, Lauderdale	46 min
Feb 25, 12:50 AM CST	Severe Thunderstorm Warning	BMX	Winston	25 min
Feb 25, 2:48 AM CST	Severe Thunderstorm Warning	BMX	Dallas, Perry	42 min
Feb 25, 4:00 AM CST	Severe Thunderstorm Warning	BMX	Walker	30 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; radar from the NEXRAD Level II archive.