Alert archive / West Virginia / Tornado Watches in 2010

Tornado Watch 726

October 26, 20105 states

The Storm Prediction Center issued this tornado watch at Oct 26, 2010, 1:36 PM EDT for 5 states. It was in force for 7 hr.

The area

The outline as issued.

The facts

Issued
Oct 26, 2010, 1:36 PM EDT (17:36 UTC)
Expired
Oct 26, 2010, 9:00 PM EDT
In force
7 hr
Issued by
the Storm Prediction Center
Largest hail expected
1 in
Strongest gust expected
65 kt
All 134 counties

Bath County, KY, Bell County, KY, Boyd County, KY, Breathitt County, KY, Carter County, KY, Clay County, KY, Elliott County, KY, Estill County, KY, Fleming County, KY, Floyd County, KY, Greenup County, KY, Harlan County, KY, Jackson County, KY, Johnson County, KY, Knott County, KY, Knox County, KY, Laurel County, KY, Lawrence County, KY, Lee County, KY, Leslie County, KY, Letcher County, KY, Magoffin County, KY, Martin County, KY, McCreary County, KY, Menifee County, KY, Montgomery County, KY, Morgan County, KY, Owsley County, KY, Perry County, KY, Pike County, KY, Powell County, KY, Pulaski County, KY, Rockcastle County, KY, Rowan County, KY, Wayne County, KY, Whitley County, KY, Wolfe County, KY, Ashtabula County, OH, Athens County, OH, Belmont County, OH, Carroll County, OH, Columbiana County, OH, Coshocton County, OH, Gallia County, OH, Geauga County, OH, Guernsey County, OH, Harrison County, OH, Jackson County, OH, Jefferson County, OH, Lake County, OH, Lawrence County, OH, Mahoning County, OH, Meigs County, OH, Monroe County, OH, Morgan County, OH, Muskingum County, OH, Noble County, OH, Perry County, OH, Portage County, OH, Stark County, OH, Summit County, OH, Trumbull County, OH, Tuscarawas County, OH, Vinton County, OH, Washington County, OH, Allegheny County, PA, Armstrong County, PA, Beaver County, PA, Butler County, PA, Cambria County, PA, Cameron County, PA, Clarion County, PA, Clearfield County, PA, Crawford County, PA, Elk County, PA, Erie County, PA, Fayette County, PA, Forest County, PA, Greene County, PA, Indiana County, PA, Jefferson County, PA, Lawrence County, PA, McKean County, PA, Mercer County, PA, Somerset County, PA, Venango County, PA, Warren County, PA, Washington County, PA, Westmoreland County, PA, Buchanan County, VA, Dickenson County, VA, Barbour County, WV, Boone County, WV, Braxton County, WV, Brooke County, WV, Cabell County, WV, Calhoun County, WV, Clay County, WV, Doddridge County, WV, Fayette County, WV, Gilmer County, WV, Hancock County, WV, Harrison County, WV, Jackson County, WV, Kanawha County, WV, Lewis County, WV, Lincoln County, WV, Logan County, WV, Marion County, WV, Marshall County, WV, Mason County, WV, McDowell County, WV, Mingo County, WV, Monongalia County, WV, Nicholas County, WV, Ohio County, WV, Pleasants County, WV, Pocahontas County, WV, Preston County, WV, Putnam County, WV, Raleigh County, WV, Randolph County, WV, Ritchie County, WV, Roane County, WV, Taylor County, WV, Tucker County, WV, Tyler County, WV, Upshur County, WV, Wayne County, WV, Webster County, WV, Wetzel County, WV, Wirt County, WV, Wood County, WV, Wyoming County, WV

The radar

The Pittsburgh radar (KPBZ), 84 km from the middle of the area, began a volume at 17:38 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.

What SPC expected

The probabilities SPC published with the watch, for the watch area over its life.

Two or more tornadoes
40%
One or more EF2 to EF5 tornadoes
20%
Ten or more severe wind reports
90%
One or more gusts of 65 knots or more
50%
Ten or more severe hail reports
10%
One or more hailstones of 2 inches or more
5%
Six or more combined severe hail and wind reports
95%

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
Oct 26, 1:57 PM EDTSevere Thunderstorm WarningJKLBath, Fleming, Montgomery, Rowan48 min
Oct 26, 2:01 PM EDTSevere Thunderstorm WarningCLECuyahoga, Medina, Summit74 min
Oct 26, 2:13 PM EDTSevere Thunderstorm WarningRLXMorgan, Perry62 min
Oct 26, 2:26 PM EDTSevere Thunderstorm WarningRLXGreenup49 min
Oct 26, 2:29 PM EDTSevere Thunderstorm WarningJKLPulaski, Wayne31 min
Oct 26, 2:30 PM EDTSevere Thunderstorm WarningPBZCoshocton, Guernsey, Muskingum, Tuscarawas75 min
Oct 26, 2:36 PM EDTSevere Thunderstorm WarningCLEGeauga, Lake69 min
Oct 26, 2:43 PM EDTTornado WarningJKLPulaski, Wayne32 min
Oct 26, 2:45 PM EDTSevere Thunderstorm WarningJKLRowan30 min
Oct 26, 2:46 PM EDTTornado WarningPBZCoshocton, Guernsey, Muskingum, Tuscarawas44 min
Oct 26, 2:54 PM EDTSevere Thunderstorm WarningRLXBoyd, Carter, Greenup36 min
Oct 26, 3:07 PM EDTSevere Thunderstorm WarningJKLLaurel, Pulaski, Rockcastle23 min
Oct 26, 3:12 PM EDTSevere Thunderstorm WarningRLXAthens, Gallia, Jackson, Meigs, Morgan, Perry and 2 more48 min
Oct 26, 3:13 PM EDTSevere Thunderstorm WarningJKLMcCreary, Wayne32 min
Oct 26, 3:26 PM EDTSevere Thunderstorm WarningJKLClay, Jackson, Laurel, Owsley, Rockcastle34 min
Oct 26, 3:29 PM EDTTornado WarningJKLClay, Jackson, Laurel31 min
Oct 26, 3:31 PM EDTSevere Thunderstorm WarningPBZMonroe, Noble74 min
Oct 26, 3:33 PM EDTSevere Thunderstorm WarningJKLElliott, Johnson, Morgan27 min
Oct 26, 3:35 PM EDTSevere Thunderstorm WarningRLXBoyd, Greenup25 min
Oct 26, 3:41 PM EDTSevere Thunderstorm WarningPBZBelmont, Carroll, Columbiana, Guernsey, Harrison, Jefferson and 2 more64 min
Oct 26, 3:46 PM EDTSevere Thunderstorm WarningJKLLaurel, McCreary, Wayne, Whitley29 min
Oct 26, 3:47 PM EDTSevere Thunderstorm WarningRLXBoyd, Lawrence43 min
Oct 26, 3:59 PM EDTSevere Thunderstorm WarningJKLBreathitt, Clay, Knott, Owsley, Perry31 min
Oct 26, 4:02 PM EDTSevere Thunderstorm WarningRLXGallia, Meigs43 min
Oct 26, 4:15 PM EDTSevere Thunderstorm WarningJKLClay, Knox, Laurel, Whitley30 min
Oct 26, 4:30 PM EDTSevere Thunderstorm WarningRLXJackson, Kanawha, Mason, Putnam, Roane30 min
Oct 26, 4:34 PM EDTSevere Thunderstorm WarningPBZAllegheny, Beaver, Butler, Lawrence56 min
Oct 26, 4:38 PM EDTSevere Thunderstorm WarningJKLBreathitt, Floyd, Johnson, Magoffin, Martin52 min
Oct 26, 4:42 PM EDTSevere Thunderstorm WarningJKLClay, Knox, Leslie, Perry33 min
Oct 26, 4:53 PM EDTTornado WarningJKLClay, Leslie16 min
Oct 26, 5:03 PM EDTSevere Thunderstorm WarningRLXLawrence27 min
Oct 26, 5:25 PM EDTSevere Thunderstorm WarningPBZArmstrong, Butler, Clarion, Jefferson50 min
Oct 26, 5:28 PM EDTSevere Thunderstorm WarningRLXBoone, Lincoln, Logan, Mingo, Wayne32 min
Oct 26, 5:58 PM EDTSevere Thunderstorm WarningRLXBoone, Calhoun, Clay, Fayette, Kanawha, Lincoln and 2 more47 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

Pittsburgh, PA (KPIT), launched 12:00Z, 5.6 hours before the alert went out and 89 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, Pittsburgh, PA at 12:00Z on 2010-10-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3 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, Pittsburgh, PA at 12:00Z on 2010-10-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 222 square meters per square second.193958Sfc1 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
3 J/kg
Mixed-layer CIN
-104 J/kg
Mixed-layer LCL
1091 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
222 m²/s²
0-3 km storm-relative helicity
248 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.

IssuedProductOfficeCountiesLasted
Oct 26, 4:38 AM EDTMesoscale DiscussionSPCBallard, Caldwell, Calloway, Carlisle, Christian, Crittenden and 14 more2 hr
Oct 26, 5:05 AM EDTTornado WatchSPCBallard, Caldwell, Calloway, Carlisle, Christian, Crittenden and 16 more8 hr
Oct 26, 7:00 AM EDTMesoscale DiscussionSPCAdair, Allen, Anderson, Ballard, Barren, Bath and 84 more2 hr
Oct 26, 8:55 AM EDTTornado WatchSPCAdair, Allen, Anderson, Barren, Bath, Boone and 74 more7 hr
Oct 26, 1:09 PM EDTMesoscale DiscussionSPCBoyd, Breathitt, Carter, Elliott, Floyd, Greenup and 10 more66 min
Oct 26, 5:45 PM EDTMesoscale DiscussionSPCBoyd, Breathitt, Carter, Elliott, Floyd, Greenup and 10 more90 min
Oct 26, 2:16 PM EDTTornado WatchSPCLee, Russell, Scott, Washington, Wise, City of Bristol and 1 more8 hr
Oct 26, 6:21 PM EDTMesoscale DiscussionSPCAlbemarle, Alleghany, Amherst, Appomattox, Augusta, Bath and 49 more54 min
Oct 26, 7:19 PM EDTTornado WatchSPCAlbemarle, Alleghany, Amherst, Appomattox, Arlington, Augusta and 65 more12 hr

Nearby

Tornado Watches in West Virginia, 2010Tornado Watches in Kentucky, 2010Tornado Watches in Ohio, 2010Every tornado watch in 2010

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.