Alert archive / Oklahoma / Tornado Watches in 2001

Tornado Watch 209

May 6, 2001Benton County, Washington County, Arkansas; 4 counties in Missouri; 35 counties in Oklahoma

The Storm Prediction Center issued this tornado watch at May 6, 2001, 7:00 PM CDT for Benton County, Washington County, Arkansas; 4 counties in Missouri; 35 counties in Oklahoma. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
May 6, 2001, 7:00 PM CDT (00:00 UTC)
Expired
May 7, 2001, 1:00 AM CDT
In force
6 hr
Issued by
the Storm Prediction Center
All 41 counties

Benton County, AR, Washington County, AR, Barry County, MO, Lawrence County, MO, McDonald County, MO, Newton County, MO, Adair County, OK, Atoka County, OK, Bryan County, OK, Carter County, OK, Cherokee County, OK, Choctaw County, OK, Coal County, OK, Craig County, OK, Creek County, OK, Delaware County, OK, Haskell County, OK, Hughes County, OK, Johnston County, OK, Latimer County, OK, LeFlore County, OK, Love County, OK, Marshall County, OK, Mayes County, OK, McIntosh County, OK, Murray County, OK, Muskogee County, OK, Nowata County, OK, Okfuskee County, OK, Okmulgee County, OK, Ottawa 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, Washington County, OK

The radar

The Tulsa radar (KINX), 111 km from the middle of the area, began a volume at 00:04 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

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

IssuedProductOfficeCountiesLasted
May 6, 7:08 PM CDTSevere Thunderstorm WarningSGFBarry52 min
May 6, 7:15 PM CDTSevere Thunderstorm WarningOUNPontotoc, Seminole45 min
May 6, 7:26 PM CDTSevere Thunderstorm WarningOUNBryan, Marshall49 min
May 6, 7:35 PM CDTSevere Thunderstorm WarningTSAChoctaw40 min
May 6, 7:38 PM CDTSevere Thunderstorm WarningSGFMcDonald, Newton67 min
May 6, 7:54 PM CDTSevere Thunderstorm WarningOUNCoal, Hughes51 min
May 6, 8:14 PM CDTSevere Thunderstorm WarningSGFBarry46 min
May 6, 8:20 PM CDTSevere Thunderstorm WarningTSABenton40 min
May 6, 8:25 PM CDTSevere Thunderstorm WarningTSAPittsburg65 min
May 6, 8:45 PM CDTSevere Thunderstorm WarningSGFLawrence45 min
May 6, 9:02 PM CDTTornado WarningSGFChristian, Lawrence43 min
May 6, 9:14 PM CDTSevere Thunderstorm WarningTSABenton, Washington46 min
May 6, 11:49 PM CDTSevere Thunderstorm WarningTSACreek41 min

The nearest sounding before it

Norman, OK (KOUN), launched 00:00Z, 0.0 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 2001-05-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 485 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 2001-05-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -20 square meters per square second.19395878Sfc1 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
485 J/kg
Mixed-layer CIN
-96 J/kg
Mixed-layer LCL
1742 m above ground
0-6 km bulk shear
49 kt
0-1 km storm-relative helicity
-20 m²/s²
0-3 km storm-relative helicity
-31 m²/s²
Significant tornado parameter
-0.0
Supercell composite
-0.1

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.

IssuedProductOfficeCountiesLasted
May 6, 9:00 PM CDTSevere Thunderstorm WatchSPCClark, Columbia, Conway, Dallas, Faulkner, Garland and 21 more5 hr
May 6, 7:00 PM CDTSevere Thunderstorm WatchSPCAudrain, Barton, Bates, Benton, Boone, Callaway and 27 more6 hr
May 6, 7:00 PM CDTSevere Thunderstorm WatchSPCAudrain, Barton, Bates, Benton, Boone, Callaway and 27 more6 hr

Nearby

Tornado Watches in Oklahoma, 2001Tornado Watches in Missouri, 2001Tornado Watches in Arkansas, 2001Every tornado 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; radar from the NEXRAD Level II archive.