Alert archive / Arkansas / Tornado Watches in 2005

Tornado Watch 860

November 12, 20054 states

The Storm Prediction Center issued this tornado watch at Nov 12, 2005, 5:49 PM CST for 4 states. It was in force for 7 hr.

The area

The outline as issued.

The facts

Issued: Nov 12, 2005, 5:49 PM CST (23:49 UTC)
Expired: Nov 13, 2005, 1:00 AM CST
In force: 7 hr
Issued by: the Storm Prediction Center

All 84 counties

Baxter County, AR, Benton County, AR, Boone County, AR, Carroll County, AR, Clark County, AR, Cleburne County, AR, Conway County, AR, Crawford County, AR, Franklin County, AR, Fulton County, AR, Garland County, AR, Hempstead County, AR, Hot Spring County, AR, Howard County, AR, Izard County, AR, Johnson County, AR, Little River County, AR, Logan County, AR, Madison County, AR, Marion County, AR, Montgomery County, AR, Nevada County, AR, Newton County, AR, Perry County, AR, Pike County, AR, Polk County, AR, Pope County, AR, Scott County, AR, Searcy County, AR, Sebastian County, AR, Sevier County, AR, Stone County, AR, Van Buren County, AR, Washington County, AR, Yell County, AR, Cherokee County, KS, Crawford County, KS, Barry County, MO, Barton County, MO, Cedar County, MO, Christian County, MO, Dade County, MO, Dallas County, MO, Dent County, MO, Douglas County, MO, Greene County, MO, Howell County, MO, Jasper County, MO, Laclede County, MO, Lawrence County, MO, McDonald County, MO, Newton County, MO, Oregon County, MO, Ozark County, MO, Phelps County, MO, Polk County, MO, Pulaski County, MO, Shannon County, MO, Stone County, MO, Taney County, MO, Texas County, MO, Vernon County, MO, Webster County, MO, Wright County, MO, Adair County, OK, Atoka County, OK, Bryan County, OK, Cherokee County, OK, Choctaw County, OK, Coal County, OK, Craig County, OK, Delaware County, OK, Haskell County, OK, Latimer County, OK, LeFlore County, OK, Mayes County, OK, McCurtain County, OK, McIntosh County, OK, Muskogee County, OK, Ottawa County, OK, Pittsburg County, OK, Pushmataha County, OK, Sequoyah County, OK, Wagoner County, OK

The radar

The Western Arkansas radar (KSRX), 93 km from the middle of the area, began a volume at 23:49 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

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

Issued	Product	Office	Counties	Lasted
Nov 12, 6:01 PM CST	Severe Thunderstorm Warning	TSA	Ottawa	37 min
Nov 12, 6:13 PM CST	Severe Thunderstorm Warning	SGF	Newton	47 min
Nov 12, 6:22 PM CST	Severe Thunderstorm Warning	SGF	Barton, Cedar, Dade	38 min
Nov 12, 6:27 PM CST	Tornado Warning	SGF	Newton	43 min
Nov 12, 6:29 PM CST	Severe Thunderstorm Warning	SGF	Jasper	42 min
Nov 12, 6:33 PM CST	Severe Thunderstorm Warning	OUN	Atoka, Coal	42 min
Nov 12, 7:23 PM CST	Severe Thunderstorm Warning	SGF	Polk	29 min
Nov 12, 7:44 PM CST	Severe Thunderstorm Warning	SGF	Lawrence	44 min
Nov 12, 7:57 PM CST	Severe Thunderstorm Warning	SGF	Christian, Greene	63 min
Nov 12, 8:00 PM CST	Tornado Warning	SGF	Greene	20 min
Nov 12, 8:06 PM CST	Severe Thunderstorm Warning	SGF	Christian	41 min
Nov 12, 8:20 PM CST	Severe Thunderstorm Warning	SGF	Greene	25 min
Nov 12, 8:24 PM CST	Severe Thunderstorm Warning	SGF	Webster	40 min
Nov 12, 9:17 PM CST	Severe Thunderstorm Warning	SGF	Dent, Phelps	23 min
Nov 12, 9:36 PM CST	Severe Thunderstorm Warning	SGF	Christian, Douglas, Taney	54 min
Nov 12, 9:41 PM CST	Severe Thunderstorm Warning	SGF	Texas	51 min
Nov 12, 10:09 PM CST	Severe Thunderstorm Warning	LZK	Polk, Scott	51 min
Nov 12, 10:19 PM CST	Severe Thunderstorm Warning	SGF	Ozark	41 min
Nov 12, 10:22 PM CST	Tornado Warning	LZK	Polk	38 min
Nov 12, 10:25 PM CST	Tornado Warning	SGF	Douglas, Ozark	50 min
Nov 12, 10:28 PM CST	Severe Thunderstorm Warning	SGF	Shannon	32 min
Nov 12, 10:29 PM CST	Severe Thunderstorm Warning	SGF	Taney	16 min
Nov 12, 10:34 PM CST	Severe Thunderstorm Warning	LZK	Garland	41 min
Nov 12, 11:00 PM CST	Tornado Warning	LZK	Polk	30 min
Nov 12, 11:04 PM CST	Severe Thunderstorm Warning	SGF	Howell	51 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 12:00Z, 11.8 hours before the alert went out and 94 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: 984 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 289 m²/s²
0-3 km storm-relative helicity: 280 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
Nov 12, 1:54 PM CST	Mesoscale Discussion	SPC	Benton, Crawford, Sebastian, Washington	3 hr
Nov 12, 12:33 PM CST	Mesoscale Discussion	SPC	Allen, Anderson, Atchison, Bourbon, Brown, Coffey and 16 more	87 min
Nov 12, 4:04 PM CST	Mesoscale Discussion	SPC	McDonald	2 hr

Nearby

Tornado Watches in Arkansas, 2005 Tornado Watches in Missouri, 2005 Tornado Watches in Oklahoma, 2005 Every tornado 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.