Alert archive / Arkansas / Severe Thunderstorm Watches in 2005

Severe Thunderstorm Watch 147

April 10, 200516 counties in Arkansas; 5 counties in Missouri; 16 counties in Oklahoma

The Storm Prediction Center issued this severe thunderstorm watch at Apr 10, 2005, 9:15 PM CDT for 16 counties in Arkansas; 5 counties in Missouri; 16 counties in Oklahoma. It was in force for 7 hr.

The area

The outline as issued.

The facts

Issued: Apr 10, 2005, 9:15 PM CDT (02:15 UTC)
Expired: Apr 11, 2005, 4:00 AM CDT
In force: 7 hr
Issued by: the Storm Prediction Center

All 37 counties

Benton County, AR, Carroll County, AR, Clark County, AR, Crawford County, AR, Franklin County, AR, Howard County, AR, Johnson County, AR, Logan County, AR, Madison County, AR, Montgomery County, AR, Pike County, AR, Polk County, AR, Scott County, AR, Sebastian County, AR, Washington County, AR, Yell County, AR, Barry County, MO, Lawrence County, MO, McDonald County, MO, Newton County, MO, Stone County, MO, Adair County, OK, Cherokee County, OK, Craig County, OK, Delaware County, OK, Haskell County, OK, Latimer County, OK, LeFlore County, OK, Mayes County, OK, McCurtain County, OK, Muskogee County, OK, Nowata County, OK, Ottawa County, OK, Pushmataha County, OK, Rogers County, OK, Sequoyah County, OK, Wagoner County, OK

The radar

The Western Arkansas radar (KSRX), 66 km from the middle of the area, began a volume at 02:17 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

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

Issued	Product	Office	Counties	Lasted
Apr 10, 9:25 PM CDT	Severe Thunderstorm Warning	TSA	Latimer	65 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

Springfield, MO (KSGF), launched 00:00Z, 2.3 hours before the alert went out and 121 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1700 m above ground
0-6 km bulk shear: 39 kt
0-1 km storm-relative helicity: 96 m²/s²
0-3 km storm-relative helicity: 134 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 10, 8:53 PM CDT	Mesoscale Discussion	SPC	Benton, Crawford, Sebastian, Washington	2 hr
Apr 11, 1:23 AM CDT	Mesoscale Discussion	SPC	Benton, Carroll, Clark, Crawford, Franklin, Howard and 11 more	67 min
Apr 11, 3:12 AM CDT	Mesoscale Discussion	SPC	Columbia, Lafayette, Miller, Union	63 min
Apr 11, 3:23 AM CDT	Mesoscale Discussion	SPC	Benton, Carroll, Clark, Crawford, Franklin, Howard and 11 more	67 min
Apr 11, 3:45 AM CDT	Severe Thunderstorm Watch	SPC	Ashley, Bradley, Columbia, Lafayette, Miller, Union	7 hr
Apr 11, 6:17 AM CDT	Mesoscale Discussion	SPC	Arkansas, Clay, Cleburne, Conway, Craighead, Crittenden and 27 more	118 min
Apr 11, 6:53 AM CDT	Mesoscale Discussion	SPC	Ashley, Columbia, Lafayette, Miller, Union	67 min
Apr 11, 9:41 AM CDT	Mesoscale Discussion	SPC	Ashley, Bradley, Chicot, Columbia, Union	2 hr
Apr 11, 10:15 AM CDT	Tornado Watch	SPC	Ashley, Chicot, Desha, Drew	9 hr
Apr 11, 12:12 PM CDT	Mesoscale Discussion	SPC	Ashley, Bradley, Chicot, Columbia, Union	2 hr
Apr 11, 2:01 PM CDT	Mesoscale Discussion	SPC	Benton, Carroll, Madison, Washington	89 min
Apr 10, 7:49 PM CDT	Mesoscale Discussion	SPC	Atchison, Holt	56 min
Apr 11, 10:55 AM CDT	Mesoscale Discussion	SPC	Atchison, Holt	95 min
Apr 11, 11:55 AM CDT	Tornado Watch	SPC	Atchison, Holt	8 hr
Apr 11, 5:01 PM CDT	Mesoscale Discussion	SPC	Atchison, Holt	59 min
Apr 11, 5:40 PM CDT	Severe Thunderstorm Watch	SPC	Bates, Buchanan, Caldwell, Cass, Clay, Clinton and 7 more	4 hr
Apr 10, 7:32 PM CDT	Mesoscale Discussion	SPC	Atoka, Canadian, Carter, Cleveland, Coal, Creek and 18 more	88 min
Apr 10, 9:23 PM CDT	Mesoscale Discussion	SPC	Alfalfa, Garfield, Grant, Kay, Noble, Osage and 1 more	2 hr

Nearby

Severe Thunderstorm Watches in Arkansas, 2005 Severe Thunderstorm Watches in Oklahoma, 2005 Severe Thunderstorm Watches in Missouri, 2005 Every severe thunderstorm watch in 2005

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.