Alert archive / Oklahoma / Severe Thunderstorm Watches in 2002

Severe Thunderstorm Watch 717

October 3, 200214 counties in Kansas; 22 counties in Oklahoma

The Storm Prediction Center issued this severe thunderstorm watch at Oct 3, 2002, 5:40 PM CDT for 14 counties in Kansas; 22 counties in Oklahoma. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued
Oct 3, 2002, 5:40 PM CDT (22:40 UTC)
Expired
Oct 3, 2002, 11:00 PM CDT
In force
5 hr
Issued by
the Storm Prediction Center
All 36 counties

Barber County, KS, Butler County, KS, Chase County, KS, Harper County, KS, Harvey County, KS, Kingman County, KS, Marion County, KS, McPherson County, KS, Pratt County, KS, Reno County, KS, Rice County, KS, Sedgwick County, KS, Stafford County, KS, Sumner County, KS, Alfalfa County, OK, Beckham County, OK, Blaine County, OK, Caddo County, OK, Canadian County, OK, Comanche County, OK, Custer County, OK, Dewey County, OK, Garfield County, OK, Grady County, OK, Grant County, OK, Greer County, OK, Harmon County, OK, Kay County, OK, Kingfisher County, OK, Kiowa County, OK, Logan County, OK, Major County, OK, Noble County, OK, Washita County, OK, Woods County, OK, Woodward County, OK

The radar

The Vance AFB radar (KVNX), 75 km from the middle of the area, began a volume at 22:39 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

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

IssuedProductOfficeCountiesLasted
Oct 3, 5:46 PM CDTSevere Thunderstorm WarningOUNWoods44 min
Oct 3, 5:55 PM CDTTornado WarningOUNWoods35 min
Oct 3, 6:29 PM CDTSevere Thunderstorm WarningDDCBarber46 min
Oct 3, 6:29 PM CDTSevere Thunderstorm WarningDDCBarber46 min
Oct 3, 6:30 PM CDTTornado WarningOUNWoods30 min
Oct 3, 6:30 PM CDTTornado WarningOUNWoods30 min
Oct 3, 7:17 PM CDTSevere Thunderstorm WarningICTHarper58 min
Oct 3, 8:45 PM CDTFlash Flood WarningOUNAlfalfa6 hr
Oct 3, 9:51 PM CDTSevere Thunderstorm WarningICTHarvey54 min
Oct 3, 10:09 PM CDTSevere Thunderstorm WarningICTMarion66 min
Oct 3, 10:25 PM CDTSevere Thunderstorm WarningICTSedgwick50 min
Oct 3, 10:49 PM CDTSevere Thunderstorm WarningICTSumner41 min

The nearest sounding before it

Lamont, OK (KLMN), launched 12:00Z, 10.7 hours before the alert went out and 112 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, Lamont, OK at 12:00Z on 2002-10-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 108 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Lamont, OK at 12:00Z on 2002-10-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 153 square meters per square second.1939587897Sfc1 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
108 J/kg
Mixed-layer CIN
-102 J/kg
Mixed-layer LCL
0 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
153 m²/s²
0-3 km storm-relative helicity
190 m²/s²
Significant tornado parameter
-0.0
Supercell composite
-6.8

Open this sounding in Storm Lab

Nearby

Severe Thunderstorm Watches in Oklahoma, 2002Severe Thunderstorm Watches in Kansas, 2002Every severe thunderstorm watch in 2002

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.