Alert archive / Oklahoma / Severe Thunderstorm Watches in 2001

Severe Thunderstorm Watch 768

October 10, 200113 counties in Oklahoma; 8 counties in Texas

The Storm Prediction Center issued this severe thunderstorm watch at Oct 10, 2001, 12:00 PM CDT for 13 counties in Oklahoma; 8 counties in Texas. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued: Oct 10, 2001, 12:00 PM CDT (17:00 UTC)
Expired: Oct 10, 2001, 5:00 PM CDT
In force: 5 hr
Issued by: the Storm Prediction Center

All 21 counties

Atoka County, OK, Bryan County, OK, Carter County, OK, Coal County, OK, Johnston County, OK, Latimer County, OK, LeFlore County, OK, Love County, OK, Marshall County, OK, Murray County, OK, Pittsburg County, OK, Pontotoc County, OK, Pushmataha County, OK, Collin County, TX, Cooke County, TX, Denton County, TX, Fannin County, TX, Grayson County, TX, Jack County, TX, Montague County, TX, Wise County, TX

Warnings issued inside it

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

Issued	Product	Office	Counties	Lasted
Oct 10, 12:45 PM CDT	Severe Thunderstorm Warning	OUN	Garvin, Pontotoc	45 min
Oct 10, 4:00 PM CDT	Severe Thunderstorm Warning	TSA	LeFlore	60 min

The nearest sounding before it

Fort Worth, TX (KFWD), launched 12:00Z, 5.0 hours before the alert went out and 116 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: 1934 J/kg
Mixed-layer CIN: -25 J/kg
Mixed-layer LCL: 517 m above ground
0-6 km bulk shear: 39 kt
0-1 km storm-relative helicity: 228 m²/s²
0-3 km storm-relative helicity: 235 m²/s²
Significant tornado parameter: 1.8
Supercell composite: 8.7

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.

Issued	Product	Office	Counties	Lasted
Oct 9, 9:00 PM CDT	Tornado Watch	SPC	Cherokee, Cleveland, Creek, Garvin, Haskell, Hughes and 16 more	4 hr
Oct 10, 4:00 PM CDT	Severe Thunderstorm Watch	SPC	LeFlore, McCurtain	5 hr
Oct 10, 1:45 PM CDT	Severe Thunderstorm Watch	SPC	Borden, Callahan, Coke, Coleman, Concho, Crane and 20 more	5 hr

Nearby

Severe Thunderstorm Watches in Oklahoma, 2001 Severe Thunderstorm Watches in Texas, 2001 Every severe thunderstorm 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.