Alert archive / West Virginia / Tornado Watches in 2024

Tornado Watch 105

April 11, 20244 states

The Storm Prediction Center issued this tornado watch at Apr 11, 2024, 4:06 PM EDT for 4 states. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued
Apr 11, 2024, 4:06 PM EDT (20:06 UTC)
Expired
Apr 11, 2024, 9:00 PM EDT
In force
5 hr
Issued by
the Storm Prediction Center
Largest hail expected
1.5 in
Strongest gust expected
60 kt
All 68 counties

Boyd County, KY, Carter County, KY, Elliott County, KY, Floyd County, KY, Greenup County, KY, Johnson County, KY, Lawrence County, KY, Magoffin County, KY, Martin County, KY, Morgan County, KY, Pike County, KY, Athens County, OH, Belmont County, OH, Gallia County, OH, Guernsey County, OH, Harrison County, OH, Jackson County, OH, Jefferson County, OH, Lawrence County, OH, Meigs County, OH, Monroe County, OH, Morgan County, OH, Noble County, OH, Vinton County, OH, Washington County, OH, Fayette County, PA, Greene County, PA, Washington County, PA, 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, Preston County, WV, Putnam County, WV, Raleigh County, WV, Ritchie County, WV, Roane County, WV, Taylor 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 Charleston,WV radar (KRLX), 27 km from the middle of the area, began a volume at 20:09 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
50%
One or more EF2 to EF5 tornadoes
20%
Ten or more severe wind reports
50%
One or more gusts of 65 knots or more
20%
Ten or more severe hail reports
20%
One or more hailstones of 2 inches or more
10%
Six or more combined severe hail and wind reports
80%

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
Apr 11, 4:44 PM EDTSevere Thunderstorm WarningJKLBreathitt, Johnson, Magoffin, Morgan31 min
Apr 11, 4:55 PM EDTSevere Thunderstorm WarningRLXBoone, Fayette, Kanawha, Raleigh35 min
Apr 11, 5:12 PM EDTFlash Flood WarningPBZBelmont, Jefferson, Monroe8 hr
Apr 11, 5:12 PM EDTSevere Thunderstorm WarningRLXBoone, Fayette, Kanawha33 min
Apr 11, 5:26 PM EDTSevere Thunderstorm WarningRLXClay, Fayette, Kanawha, Nicholas34 min
Apr 11, 5:32 PM EDTFlash Flood WarningPBZColumbiana, Jefferson7 hr
Apr 11, 5:33 PM EDTFlash Flood WarningRLXBoone, Logan, Mingo6 hr
Apr 11, 5:41 PM EDTFlash Flood WarningRLXWashington10 hr
Apr 11, 5:57 PM EDTSevere Thunderstorm WarningRLXClay, Nicholas33 min
Apr 11, 5:58 PM EDTFlash Flood WarningPBZAllegheny, Greene, Washington7 hr
Apr 11, 5:58 PM EDTFlash Flood WarningRLXBoone, Cabell, Jackson, Kanawha, Lincoln, Mason and 2 more5 hr
Apr 11, 6:21 PM EDTSevere Thunderstorm WarningRLXBraxton, Calhoun, Clay, Gilmer, Nicholas24 min
Apr 11, 6:33 PM EDTFlash Flood WarningRLXBoone, Clay, Fayette, Kanawha, Nicholas, Raleigh and 1 more5 hr
Apr 11, 7:07 PM EDTFlash Flood Warning EmergencyCatastrophic damage threatPBZAllegheny, Washington5 hr
Apr 11, 7:14 PM EDTFlash Flood WarningPBZAllegheny, Fayette, Greene, Washington6 hr
Apr 11, 7:40 PM EDTFlash Flood WarningRLXBraxton, Calhoun, Clay, Doddridge, Gilmer, Harrison and 4 more5 hr
Apr 11, 8:09 PM EDTFlash Flood WarningRLXBoone, Lincoln, Logan, Mingo, Wayne3 hr
Apr 11, 8:37 PM EDTFlash Flood WarningPBZBelmont, Guernsey, Harrison, Jefferson, Monroe, Noble4 hr
Apr 11, 8:58 PM EDTFlash Flood WarningRLXAthens, Gallia, Meigs, Morgan, Washington4 hr

Discussions around it

SPC mesoscale discussions over the same counties from four hours before the watch to its end.

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 8.1 hours before the alert went out and 191 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, Cncnati-Daytn, OH at 12:00Z on 2024-04-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Cncnati-Daytn, OH at 12:00Z on 2024-04-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 22 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
672 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
22 m²/s²
0-3 km storm-relative helicity
68 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
Apr 11, 1:54 PM EDTMesoscale DiscussionSPCBell, Boyd, Breathitt, Carter, Clay, Elliott and 26 more2 hr
Apr 11, 6:43 PM EDTMesoscale DiscussionSPCGreene2 hr

Nearby

Tornado Watches in West Virginia, 2024Tornado Watches in Ohio, 2024Tornado Watches in Kentucky, 2024Every tornado watch in 2024

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.