Alert archive / Oklahoma / Severe Thunderstorm Watches in 2003

Severe Thunderstorm Watch 296

May 8, 200331 counties in Oklahoma

The Storm Prediction Center issued this severe thunderstorm watch at May 8, 2003, 3:50 AM CDT for 31 counties in Oklahoma. It was in force for 3 hr.

The area

The outline as issued.

The facts

Issued
May 8, 2003, 3:50 AM CDT (08:50 UTC)
Expired
May 8, 2003, 7:00 AM CDT
In force
3 hr
Issued by
the Storm Prediction Center
All 31 counties

Adair County, OK, Atoka County, OK, Bryan County, OK, Cherokee County, OK, Choctaw County, OK, Coal County, OK, Creek County, OK, Haskell County, OK, Hughes County, OK, Johnston County, OK, Latimer County, OK, LeFlore County, OK, Lincoln County, OK, Marshall County, OK, Mayes County, OK, McCurtain County, OK, McIntosh County, OK, Muskogee County, OK, Okfuskee County, OK, Okmulgee County, OK, Pawnee County, OK, Payne County, OK, Pittsburg County, OK, Pontotoc County, OK, Pottawatomie County, OK, Pushmataha County, OK, Rogers County, OK, Seminole County, OK, Sequoyah County, OK, Tulsa County, OK, Wagoner County, OK

The radar

The Tulsa radar (KINX), 92 km from the middle of the area, began a volume at 08:54 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

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

IssuedProductOfficeCountiesLasted
May 8, 3:50 AM CDTSevere Thunderstorm WarningTSAPittsburg55 min
May 8, 3:59 AM CDTTornado WarningOUNAtoka, Johnston46 min
May 8, 4:20 AM CDTTornado WarningTSAPittsburg55 min
May 8, 4:42 AM CDTSevere Thunderstorm WarningTSALatimer63 min
May 8, 5:04 AM CDTSevere Thunderstorm WarningTSAHaskell41 min
May 8, 5:41 AM CDTSevere Thunderstorm WarningTSALatimer, LeFlore49 min
May 8, 6:04 AM CDTTornado WarningTSALeFlore56 min
May 8, 6:56 AM CDTSevere Thunderstorm WarningTSALeFlore34 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, 8.8 hours before the alert went out and 129 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 2003-05-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1026 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 2003-05-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 123 square meters per square second.1939587897117Sfc1 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
1026 J/kg
Mixed-layer CIN
-80 J/kg
Mixed-layer LCL
1110 m above ground
0-6 km bulk shear
75 kt
0-1 km storm-relative helicity
123 m²/s²
0-3 km storm-relative helicity
300 m²/s²
Significant tornado parameter
1.0
Supercell composite
5.9

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 7, 8:01 PM CDTMesoscale DiscussionSPCBeckham, Caddo, Comanche, Cotton, Greer, Harmon and 4 more59 min
May 7, 10:35 PM CDTMesoscale DiscussionSPCAlfalfa, Blaine, Caddo, Canadian, Cherokee, Cleveland and 29 more55 min
May 7, 10:35 PM CDTTornado WatchSPCBeckham, Bryan, Carter, Coal, Comanche, Cotton and 13 more5 hr
May 7, 10:55 PM CDTSevere Thunderstorm WatchSPCAdair, Alfalfa, Beckham, Blaine, Caddo, Canadian and 39 more5 hr
May 7, 11:51 PM CDTMesoscale DiscussionSPCBeckham, Bryan, Carter, Coal, Comanche, Cotton and 13 more54 min
May 8, 1:18 AM CDTMesoscale DiscussionSPCAdair, Blaine, Cherokee, Craig, Custer, Delaware and 19 more3 hr
May 8, 1:55 AM CDTSevere Thunderstorm WatchSPCCraig, Delaware, Grant, Kay, Nowata, Osage and 2 more5 hr
May 8, 1:57 AM CDTMesoscale DiscussionSPCAtoka, Beckham, Bryan, Carter, Coal, Comanche and 14 more2 hr
May 8, 3:51 AM CDTMesoscale DiscussionSPCOttawa3 hr
May 8, 5:02 AM CDTMesoscale DiscussionSPCAdair, Atoka, Cherokee, Choctaw, Coal, Creek and 24 more2 hr
May 8, 6:20 AM CDTTornado WatchSPCHaskell, Latimer, LeFlore, Sequoyah3 hr
May 8, 12:49 PM CDTMesoscale DiscussionSPCAlfalfa, Blaine, Garfield, Grant, Kingfisher, Kiowa and 1 more3 hr
May 8, 1:35 PM CDTTornado WatchSPCAlfalfa, Blaine, Caddo, Canadian, Carter, Cleveland and 24 more7 hr
May 8, 3:34 PM CDTMesoscale DiscussionSPCAlfalfa, Caddo, Canadian, Carter, Cleveland, Comanche and 25 more116 min
May 8, 4:47 PM CDTMesoscale DiscussionSPCCanadian, Cleveland, Grady, Lincoln, Logan, McClain and 3 more58 min
May 8, 5:31 PM CDTMesoscale DiscussionSPCAdair, Cherokee, Coal, Craig, Creek, Delaware and 17 more59 min
May 8, 5:45 PM CDTTornado WatchSPCAdair, Cherokee, Coal, Craig, Delaware, Haskell and 17 more5 hr
May 8, 6:38 PM CDTMesoscale DiscussionSPCAdair, Carter, Cherokee, Cleveland, Coal, Craig and 35 more2 hr

Nearby

Severe Thunderstorm Watches in Oklahoma, 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.