Alert archive / Texas / Tornado Warnings in 2001

Tornado Warning 7, NWS Fort Worth, TX

May 6, 2001Kaufman County, Rockwall County, Texas

NWS Fort Worth, TX issued this tornado warning at May 6, 2001, 8:41 PM CDT for Kaufman County, Rockwall County, Texas. It was in force for 34 min. 1 report came from 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, with what was reported inside it.

The facts

Issued: May 6, 2001, 8:41 PM CDT (01:41 UTC)
Expired: May 6, 2001, 9:15 PM CDT
In force: 34 min
Issued by: NWS Fort Worth, TX
Area: Whole counties; the outline is the Mesonet’s reconstruction

Counties Kaufman County, TX, Rockwall County, TX

The radar

The Dallas/Ft Worth radar (KFWS), 89 km from the middle of the area, began a volume at 01:44 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.

What was reported inside it

Time	Report	Where	Remark
May 6, 8:48 PM CDT	Hail 1.25	Powderly, TX

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The watch it was issued in

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

Issued	Product	Office	Lasted
May 6, 4:30 PM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Fort Worth, TX (KFWD), launched 00:00Z, 1.7 hours before the alert went out and 84 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: 3285 J/kg
Mixed-layer CIN: -1 J/kg
Mixed-layer LCL: 1057 m above ground
0-6 km bulk shear: 47 kt
0-1 km storm-relative helicity: 70 m²/s²
0-3 km storm-relative helicity: 131 m²/s²
Significant tornado parameter: 2.1
Supercell composite: 9.5

Open this sounding in Storm Lab

The text

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

784 
WFUS54 KFWD 070143
TORFTW
TXC257-397-070215-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE FORT WORTH TX
841 PM CDT SUN MAY 6 2001

THE NATIONAL WEATHER SERVICE IN FORT WORTH HAS ISSUED A

* TORNADO WARNING FOR...
  KAUFMAN COUNTY IN NORTH CENTRAL TEXAS
  ROCKWALL COUNTY IN NORTH CENTRAL TEXAS

* UNTIL 915 PM CDT

* AT 841 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR DETECTED 
  A THUNDERSTORM CAPABLE OF PRODUCING A TORNADO BETWEEN ROCKWALL 
  AND FORNEY...MOVING SOUTHEAST AT 25 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE TERRELL.

LAT...LON 3292 9646 3274 9651 3262 9632 3283 9622

The office that day

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

Issued	Product	Office	Counties	Lasted
May 6, 7:13 PM CDT	Severe Thunderstorm Warning	FWD	Mills	47 min
May 6, 7:44 PM CDT	Severe Thunderstorm Warning	FWD	Collin, Dallas	61 min
May 6, 8:09 PM CDT	Severe Thunderstorm Warning	FWD	Fannin, Lamar	66 min
May 6, 8:29 PM CDT	Severe Thunderstorm Warning	FWD	Kaufman, Rockwall	61 min
May 7, 3:40 AM CDT	Severe Thunderstorm Warning	FWD	Palo Pinto	65 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.