Alert archive / Oklahoma / Severe Thunderstorm Watches in 2003

Severe Thunderstorm Watch 365

May 13, 2003Clark County, Kansas; 45 counties in Oklahoma

The Storm Prediction Center issued this severe thunderstorm watch at May 13, 2003, 10:20 PM CDT for Clark County, Kansas; 45 counties in Oklahoma. It was in force for 7 hr.

The area

The outline as issued.

The facts

Issued
May 13, 2003, 10:20 PM CDT (03:20 UTC)
Expired
May 14, 2003, 5:00 AM CDT
In force
7 hr
Issued by
the Storm Prediction Center
All 46 counties

Clark County, KS, Alfalfa County, OK, Atoka County, OK, Beckham County, OK, Blaine County, OK, Caddo County, OK, Canadian County, OK, Choctaw County, OK, Cleveland County, OK, Coal County, OK, Creek County, OK, Custer County, OK, Dewey County, OK, Ellis County, OK, Garfield County, OK, Garvin County, OK, Grady County, OK, Harper County, OK, Hughes County, OK, Johnston County, OK, Kingfisher County, OK, Kiowa County, OK, Lincoln County, OK, Logan County, OK, Major County, OK, McClain County, OK, McIntosh County, OK, Murray County, OK, Muskogee County, OK, Noble County, OK, Okfuskee County, OK, Oklahoma County, OK, Okmulgee County, OK, Pawnee County, OK, Payne County, OK, Pittsburg County, OK, Pontotoc County, OK, Pottawatomie County, OK, Pushmataha County, OK, Roger Mills County, OK, Seminole County, OK, Tulsa County, OK, Wagoner County, OK, Washita County, OK, Woods County, OK, Woodward County, OK

The radar

The Vance AFB radar (KVNX), 92 km from the middle of the area, began a volume at 03:20 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

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

IssuedProductOfficeCountiesLasted
May 13, 10:37 PM CDTSevere Thunderstorm WarningOUNWashita38 min
May 13, 11:06 PM CDTSevere Thunderstorm WarningOUNCaddo39 min
May 14, 12:07 AM CDTSevere Thunderstorm WarningOUNCaddo38 min
May 14, 12:51 AM CDTSevere Thunderstorm WarningOUNCaddo54 min
May 14, 1:01 AM CDTSevere Thunderstorm WarningOUNCuster44 min
May 14, 1:46 AM CDTSevere Thunderstorm WarningOUNBlaine, Caddo, Custer59 min
May 14, 1:48 AM CDTSevere Thunderstorm WarningOUNComanche, Grady42 min
May 14, 1:56 AM CDTSevere Thunderstorm WarningOUNCanadian64 min
May 14, 2:30 AM CDTSevere Thunderstorm WarningOUNGrady45 min
May 14, 2:48 AM CDTSevere Thunderstorm WarningOUNCaddo42 min
May 14, 3:01 AM CDTSevere Thunderstorm WarningOUNBlaine44 min
May 14, 3:13 AM CDTSevere Thunderstorm WarningOUNGarvin, Grady, McClain, Stephens47 min
May 14, 3:19 AM CDTSevere Thunderstorm WarningOUNDewey56 min
May 14, 3:41 AM CDTSevere Thunderstorm WarningDDCClark, Meade49 min
May 14, 4:01 AM CDTSevere Thunderstorm WarningOUNGarvin44 min
May 14, 4:14 AM CDTSevere Thunderstorm WarningOUNMurray46 min
May 14, 4:15 AM CDTSevere Thunderstorm WarningOUNHarper45 min
May 14, 4:17 AM CDTSevere Thunderstorm WarningOUNBlaine, Dewey43 min
May 14, 4:43 AM CDTSevere Thunderstorm WarningOUNEllis, Woodward47 min
May 14, 4:46 AM CDTSevere Thunderstorm WarningOUNCarter, Garvin, Johnston, Murray44 min
May 14, 4:57 AM CDTSevere Thunderstorm WarningOUNBlaine, Canadian48 min

Discussions around it

SPC mesoscale discussions over the same counties from four hours before the watch to its end.

The nearest sounding before it

Norman, OK (KOUN), launched 00:00Z, 3.3 hours before the alert went out and 100 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, Norman, OK at 00:00Z on 2003-05-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3007 joules per kilogram.LCLLFCEL10008507005003002001001 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, Norman, OK at 00:00Z on 2003-05-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 192 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
3007 J/kg
Mixed-layer CIN
-31 J/kg
Mixed-layer LCL
995 m above ground
0-6 km bulk shear
57 kt
0-1 km storm-relative helicity
192 m²/s²
0-3 km storm-relative helicity
283 m²/s²
Significant tornado parameter
4.6
Supercell composite
17.9

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 13, 8:38 PM CDTMesoscale DiscussionSPCBrown, Clay, Cloud, Marshall, Nemaha, Ottawa and 3 more2 hr
May 13, 9:58 PM CDTMesoscale DiscussionSPCBarber, Comanche, Cowley, Harper, Sumner3 hr
May 14, 4:52 PM CDTMesoscale DiscussionSPCBarber, Comanche, Harper113 min
May 14, 1:34 AM CDTMesoscale DiscussionSPCAtoka, Blaine, Caddo, Canadian, Cleveland, Coal and 32 more116 min
May 14, 3:49 AM CDTMesoscale DiscussionSPCAtoka, Blaine, Bryan, Caddo, Canadian, Carter and 38 more116 min
May 14, 4:05 AM CDTSevere Thunderstorm WatchSPCAlfalfa, Blaine, Bryan, Caddo, Canadian, Carter and 23 more5 hr
May 14, 5:50 AM CDTMesoscale DiscussionSPCAtoka, Blaine, Bryan, Caddo, Canadian, Carter and 23 more115 min
May 14, 7:40 AM CDTMesoscale DiscussionSPCBeckham, Bryan, Carter, Comanche, Cotton, Custer and 11 more95 min
May 14, 10:55 AM CDTMesoscale DiscussionSPCBryan, Choctaw, Johnston, McCurtain, Marshall2 hr
May 14, 2:30 PM CDTTornado WatchSPCChoctaw, McCurtain, Pushmataha6 hr
May 14, 3:23 PM CDTMesoscale DiscussionSPCCotton, Jefferson, Love, Tillman2 hr
May 14, 6:28 PM CDTMesoscale DiscussionSPCGreer, Harmon, Jackson2 hr

Nearby

Severe Thunderstorm Watches in Oklahoma, 2003Severe Thunderstorm Watches in Kansas, 2003Every severe thunderstorm watch in 2003

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.