Alert archive / Oklahoma / Severe Thunderstorm Watches in 2003

Severe Thunderstorm Watch 425

May 24, 2003Polk County, Arkansas; 21 counties in Oklahoma; Lamar County, Red River County, Texas

The Storm Prediction Center issued this severe thunderstorm watch at May 24, 2003, 9:30 AM CDT for Polk County, Arkansas; 21 counties in Oklahoma; Lamar County, Red River County, Texas. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued: May 24, 2003, 9:30 AM CDT (14:30 UTC)
Expired: May 24, 2003, 2:00 PM CDT
In force: 5 hr
Issued by: the Storm Prediction Center

All 24 counties

Polk County, AR, Atoka County, OK, Choctaw County, OK, Coal County, OK, Creek County, OK, Haskell County, OK, Hughes County, OK, Latimer County, OK, LeFlore County, OK, Lincoln County, OK, McCurtain County, OK, McIntosh County, OK, Muskogee County, OK, Okfuskee County, OK, Okmulgee County, OK, Pittsburg County, OK, Pontotoc County, OK, Pottawatomie County, OK, Pushmataha County, OK, Seminole County, OK, Tulsa County, OK, Wagoner County, OK, Lamar County, TX, Red River County, TX

The radar

The Tulsa radar (KINX), 111 km from the middle of the area, began a volume at 14:33 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

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

Issued	Product	Office	Counties	Lasted
May 24, 9:41 AM CDT	Severe Thunderstorm Warning	OUN	Pottawatomie, Seminole	49 min
May 24, 9:54 AM CDT	Severe Thunderstorm Warning	TSA	Okfuskee, Okmulgee	51 min
May 24, 10:13 AM CDT	Severe Thunderstorm Warning	OUN	Hughes	47 min
May 24, 10:20 AM CDT	Severe Thunderstorm Warning	TSA	McIntosh	40 min
May 24, 10:33 AM CDT	Severe Thunderstorm Warning	TSA	Pittsburg	42 min
May 24, 10:56 AM CDT	Severe Thunderstorm Warning	TSA	Haskell	49 min
May 24, 11:48 AM CDT	Severe Thunderstorm Warning	TSA	LeFlore	42 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 12:00Z, 2.5 hours before the alert went out and 157 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: 1150 J/kg
Mixed-layer CIN: -93 J/kg
Mixed-layer LCL: 839 m above ground
0-6 km bulk shear: 39 kt
0-1 km storm-relative helicity: 23 m²/s²
0-3 km storm-relative helicity: 89 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 1.1

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 24, 11:27 AM CDT	Mesoscale Discussion	SPC	Clark, Garland, Hempstead, Howard, Little River, Logan and 6 more	93 min
May 23, 7:08 PM CDT	Mesoscale Discussion	SPC	Cimarron	67 min
May 24, 1:03 AM CDT	Mesoscale Discussion	SPC	Beaver, Beckham, Comanche, Custer, Dewey, Ellis and 10 more	117 min
May 24, 5:33 AM CDT	Mesoscale Discussion	SPC	Alfalfa, Blaine, Caddo, Canadian, Cleveland, Comanche and 18 more	117 min
May 24, 9:24 AM CDT	Mesoscale Discussion	SPC	Atoka, Cherokee, Coal, Creek, Haskell, Hughes and 14 more	2 hr
May 24, 3:05 PM CDT	Severe Thunderstorm Watch	SPC	Cimarron	6 hr
May 24, 3:19 PM CDT	Mesoscale Discussion	SPC	Harmon	86 min
May 24, 5:39 PM CDT	Mesoscale Discussion	SPC	Beckham, Caddo, Comanche, Cotton, Custer, Dewey and 8 more	96 min
May 24, 5:57 PM CDT	Mesoscale Discussion	SPC	Cimarron	93 min
May 24, 1:05 PM CDT	Mesoscale Discussion	SPC	Armstrong, Carson, Castro, Dallam, Deaf Smith, Gray and 7 more	2 hr
May 24, 3:25 PM CDT	Severe Thunderstorm Watch	SPC	Armstrong, Bailey, Briscoe, Carson, Castro, Childress and 33 more	6 hr
May 24, 5:17 PM CDT	Mesoscale Discussion	SPC	Archer, Bosque, Collin, Dallas, Denton, Eastland and 20 more	88 min

Nearby

Severe Thunderstorm Watches in Oklahoma, 2003 Severe Thunderstorm Watches in Texas, 2003 Severe Thunderstorm Watches in Arkansas, 2003 Every 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.