Alert archive / Texas / Tornado Watches in 2001

Tornado Watch 777

October 12, 20019 counties in Oklahoma; 24 counties in Texas

The Storm Prediction Center issued this tornado watch at Oct 12, 2001, 3:45 PM CDT for 9 counties in Oklahoma; 24 counties in Texas. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
Oct 12, 2001, 3:45 PM CDT (20:45 UTC)
Expired
Oct 12, 2001, 10:00 PM CDT
In force
6 hr
Issued by
the Storm Prediction Center
All 33 counties

Carter County, OK, Coal County, OK, Cotton County, OK, Jefferson County, OK, Johnston County, OK, Love County, OK, Marshall County, OK, Murray County, OK, Stephens County, OK, Archer County, TX, Bosque County, TX, Brown County, TX, Callahan County, TX, Clay County, TX, Coleman County, TX, Comanche County, TX, Cooke County, TX, Denton County, TX, Eastland County, TX, Erath County, TX, Grayson County, TX, Hamilton County, TX, Hood County, TX, Jack County, TX, Johnson County, TX, Montague County, TX, Palo Pinto County, TX, Parker County, TX, Somervell County, TX, Stephens County, TX, Tarrant County, TX, Wise County, TX, Young County, TX

The radar

The Dallas/Ft Worth radar (KFWS), 94 km from the middle of the area, began a volume at 20:46 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.

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
Oct 12, 3:54 PM CDTSevere Thunderstorm WarningSJTBrown66 min
Oct 12, 4:01 PM CDTSevere Thunderstorm WarningOUNArcher44 min
Oct 12, 4:15 PM CDTSevere Thunderstorm WarningOUNClay45 min
Oct 12, 4:18 PM CDTSevere Thunderstorm WarningFWDEastland57 min
Oct 12, 4:19 PM CDTSevere Thunderstorm WarningSJTCallahan26 min
Oct 12, 4:21 PM CDTSevere Thunderstorm WarningSJTColeman54 min
Oct 12, 4:29 PM CDTTornado WarningSJTBrown46 min
Oct 12, 4:49 PM CDTSevere Thunderstorm WarningFWDPalo Pinto56 min
Oct 12, 5:09 PM CDTTornado WarningSJTBrown36 min
Oct 12, 5:11 PM CDTSevere Thunderstorm WarningOUNClay49 min
Oct 12, 5:13 PM CDTSevere Thunderstorm WarningFWDComanche62 min
Oct 12, 5:44 PM CDTSevere Thunderstorm WarningSJTBrown, McCulloch61 min
Oct 12, 6:19 PM CDTSevere Thunderstorm WarningOUNJefferson41 min
Oct 12, 6:23 PM CDTSevere Thunderstorm WarningFWDPalo Pinto67 min
Oct 12, 6:47 PM CDTSevere Thunderstorm WarningFWDJack43 min
Oct 12, 7:02 PM CDTSevere Thunderstorm WarningFWDComanche, Hamilton43 min
Oct 12, 7:22 PM CDTTornado WarningFWDWise38 min
Oct 12, 7:50 PM CDTSevere Thunderstorm WarningFWDBosque, Somervell55 min
Oct 12, 7:56 PM CDTTornado WarningFWDWise34 min
Oct 12, 8:02 PM CDTSevere Thunderstorm WarningOUNGrady, Stephens43 min
Oct 12, 8:10 PM CDTSevere Thunderstorm WarningFWDJohnson50 min
Oct 12, 8:12 PM CDTTornado WarningFWDDenton33 min
Oct 12, 8:14 PM CDTSevere Thunderstorm WarningOUNLove46 min
Oct 12, 8:14 PM CDTSevere Thunderstorm WarningSJTBrown61 min
Oct 12, 8:17 PM CDTSevere Thunderstorm WarningFWDTarrant43 min
Oct 12, 8:50 PM CDTTornado WarningFWDBosque, McLennan25 min
Oct 12, 8:54 PM CDTTornado WarningFWDGrayson51 min
Oct 12, 8:57 PM CDTSevere Thunderstorm WarningSJTColeman63 min
Oct 12, 8:59 PM CDTSevere Thunderstorm WarningFWDCollin, Denton61 min
Oct 12, 9:16 PM CDTTornado WarningFWDBosque, McLennan29 min
Oct 12, 9:33 PM CDTSevere Thunderstorm WarningSJTBrown57 min
Oct 12, 9:38 PM CDTSevere Thunderstorm WarningOUNAtoka, Coal52 min

The nearest sounding before it

Fort Worth, TX (KFWD), launched 12:00Z, 8.8 hours before the alert went out and 89 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, Fort Worth, TX at 12:00Z on 2001-10-12Temperature 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, Fort Worth, TX at 12:00Z on 2001-10-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 84 square meters per square second.193958Sfc1 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
1743 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
84 m²/s²
0-3 km storm-relative helicity
160 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
Oct 12, 6:30 PM CDTTornado WatchSPCBandera, Burnet, Coryell, Edwards, Gillespie, Kendall and 13 more6 hr
Oct 12, 6:30 PM CDTTornado WatchSPCBandera, Burnet, Coryell, Edwards, Gillespie, Kendall and 13 more6 hr

Nearby

Tornado Watches in Texas, 2001Tornado Watches in Oklahoma, 2001Every tornado 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; radar from the NEXRAD Level II archive.