Alert archive / Texas / Tornado Warnings in 2001

Tornado Warning 21, NWS Fort Worth, TX

October 12, 2001McLennan County, Texas

NWS Fort Worth, TX issued this tornado warning at Oct 12, 2001, 10:32 PM CDT for McLennan County, Texas. It was in force for 43 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: Oct 12, 2001, 10:32 PM CDT (03:32 UTC)
Expired: Oct 12, 2001, 11:15 PM CDT
In force: 43 min
Issued by: NWS Fort Worth, TX
Area: Whole counties; the outline is the Mesonet’s reconstruction

County McLennan County, TX

The radar

The Dallas/Ft Worth radar (KFWS), 102 km from the middle of the area, began a volume at 03:33 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
Oct 12, 8:45 PM CDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Fort Worth, TX (KFWD), launched 00:00Z, 3.5 hours before the alert went out and 130 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: 3184 J/kg
Mixed-layer CIN: 0 J/kg
Mixed-layer LCL: 541 m above ground
0-6 km bulk shear: 59 kt
0-1 km storm-relative helicity: 135 m²/s²
0-3 km storm-relative helicity: 134 m²/s²
Significant tornado parameter: 3.7
Supercell composite: 13.1

Open this sounding in Storm Lab

The text

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

325 
WFUS54 KFWD 130333
TORFTW
TXC309-130415-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE FORT WORTH TX
1032 PM CDT FRI OCT 12 2001

THE NATIONAL WEATHER SERVICE IN FORT WORTH HAS ISSUED A

* TORNADO WARNING FOR...
  MCLENNAN COUNTY IN NORTH CENTRAL TEXAS

* UNTIL 1115 PM CDT

* AT 1032 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR DETECTED A
  THUNDERSTORM CAPABLE OF PRODUCING A TORNADO OVER NORTHCREST...
  MOVING NORTHEAST AT 20 MPH.

* THE TORNADO IS EXPECTED TO BE NEAR...
  WEST AROUND 1050 PM CDT

* OTHER LOCATIONS IN THE WARNING INCLUDE BELLMEAD...BEVERLY HILLS...
  LACY-LAKEVIEW AND WACO

LAT...LON 3171 9731 3150 9720 3156 9685 3184 9707

The office that day

Everything else NWS Fort Worth, TX issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Oct 12, 7:02 PM CDT	Severe Thunderstorm Warning	FWD	Comanche, Hamilton	43 min
Oct 12, 7:22 PM CDT	Tornado Warning	FWD	Wise	38 min
Oct 12, 7:50 PM CDT	Severe Thunderstorm Warning	FWD	Bosque, Somervell	55 min
Oct 12, 7:56 PM CDT	Tornado Warning	FWD	Wise	34 min
Oct 12, 8:10 PM CDT	Severe Thunderstorm Warning	FWD	Johnson	50 min
Oct 12, 8:12 PM CDT	Tornado Warning	FWD	Denton	33 min
Oct 12, 8:17 PM CDT	Severe Thunderstorm Warning	FWD	Tarrant	43 min
Oct 12, 8:22 PM CDT	Tornado Warning	FWD	Collin	38 min
Oct 12, 8:37 PM CDT	Severe Thunderstorm Warning	FWD	Dallas, Ellis	53 min
Oct 12, 8:50 PM CDT	Tornado Warning	FWD	Bosque, McLennan	25 min
Oct 12, 8:54 PM CDT	Tornado Warning	FWD	Grayson	51 min
Oct 12, 8:55 PM CDT	Severe Thunderstorm Warning	FWD	Hill	50 min
Oct 12, 8:59 PM CDT	Severe Thunderstorm Warning	FWD	Collin, Denton	61 min
Oct 12, 9:16 PM CDT	Tornado Warning	FWD	Bosque, McLennan	29 min
Oct 12, 9:26 PM CDT	Severe Thunderstorm Warning	FWD	Dallas, Rockwall	64 min
Oct 12, 9:32 PM CDT	Severe Thunderstorm Warning	FWD	Ellis	58 min
Oct 12, 9:34 PM CDT	Severe Thunderstorm Warning	FWD	Fannin	56 min
Oct 12, 9:40 PM CDT	Tornado Warning	FWD	Hill, McLennan	50 min
Oct 12, 9:42 PM CDT	Severe Thunderstorm Warning	FWD	Kaufman	48 min
Oct 12, 9:48 PM CDT	Severe Thunderstorm Warning	FWD	Hunt	42 min
Oct 12, 10:15 PM CDT	Severe Thunderstorm Warning	FWD	Delta, Hopkins, Lamar	60 min
Oct 12, 10:30 PM CDT	Tornado Warning	FWD	Hill, Navarro	45 min
Oct 12, 10:58 PM CDT	Severe Thunderstorm Warning	FWD	Rains	47 min
Oct 12, 11:31 PM CDT	Severe Thunderstorm Warning	FWD	Milam	59 min
Oct 12, 11:33 PM CDT	Flash Flood Warning	FWD	Ellis, Hill, Navarro	3 hr
Oct 12, 11:33 PM CDT	Severe Thunderstorm Warning	FWD	Hill, Navarro	42 min
Oct 13, 12:28 AM CDT	Severe Thunderstorm Warning	FWD	Robertson	62 min
Oct 13, 12:34 AM CDT	Severe Thunderstorm Warning	FWD	Henderson	56 min

Nearby

Tornado Warnings in Texas, 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.