Alert archive / Ohio / Mesoscale Discussions in 2019

Mesoscale Discussion 346

April 14, 20194 states

The Storm Prediction Center issued this mesoscale discussion at Apr 14, 2019, 4:49 PM EDT for 4 states. It was in force for 116 min.

The area

The outline as issued.

The facts

Issued: Apr 14, 2019, 4:49 PM EDT (20:49 UTC)
Expired: Apr 14, 2019, 6:45 PM EDT
In force: 116 min
Issued by: the Storm Prediction Center

All 85 counties

Boyd County, KY, Breathitt County, KY, Carter County, KY, Elliott County, KY, Floyd County, KY, Greenup County, KY, Johnson County, KY, Lawrence County, KY, Lee County, KY, Lewis County, KY, Magoffin County, KY, Martin County, KY, Menifee County, KY, Morgan County, KY, Owsley County, KY, Powell County, KY, Rowan County, KY, Wolfe County, KY, Athens County, OH, Belmont County, OH, Carroll County, OH, Columbiana County, OH, Coshocton County, OH, Fairfield County, OH, Gallia County, OH, Guernsey County, OH, Harrison County, OH, Hocking County, OH, Jackson County, OH, Jefferson 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, Pike County, OH, Ross County, OH, Scioto 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, Clarion County, PA, Elk County, PA, Fayette County, PA, Forest County, PA, Greene County, PA, Indiana County, PA, Jefferson County, PA, Lawrence County, PA, Mercer County, PA, Venango County, PA, Warren County, PA, Washington County, PA, Westmoreland County, PA, Brooke County, WV, Cabell County, WV, Calhoun County, WV, Doddridge County, WV, Gilmer County, WV, Hancock County, WV, Harrison County, WV, Jackson County, WV, Lincoln County, WV, Marion County, WV, Marshall County, WV, Mason County, WV, Monongalia County, WV, Ohio County, WV, Pleasants County, WV, Putnam County, WV, Ritchie County, WV, Roane County, WV, Tyler County, WV, Wayne County, WV, Wetzel County, WV, Wirt County, WV, Wood County, WV

The radar

The Charleston,WV radar (KRLX), 136 km from the middle of the area, began a volume at 20:51 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.

The watches that followed

Watches SPC issued over any of the same counties within four hours of this discussion.

The nearest sounding before it

Pittsburgh, PA (KAGC), launched 12:00Z, 8.8 hours before the alert went out and 157 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: 1764 m above ground
0-6 km bulk shear: 63 kt
0-1 km storm-relative helicity: 337 m²/s²
0-3 km storm-relative helicity: 432 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

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SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 14, 1:25 PM EDT	Mesoscale Discussion	SPC	Adair, Anderson, Bath, Boone, Bourbon, Boyd and 60 more	2 hr
Apr 14, 2:33 PM EDT	Tornado Watch	SPC	Bath, Bell, Boone, Bourbon, Boyd, Bracken and 52 more	6 hr
Apr 14, 3:46 PM EDT	Mesoscale Discussion	SPC	Ashland, Ashtabula, Belmont, Carroll, Columbiana, Coshocton and 20 more	59 min
Apr 14, 4:11 PM EDT	Tornado Watch	SPC	Ashland, Ashtabula, Belmont, Carroll, Columbiana, Coshocton and 29 more	4 hr
Apr 14, 5:57 PM EDT	Mesoscale Discussion	SPC	Ashtabula, Belmont, Carroll, Columbiana, Geauga, Harrison and 5 more	63 min
Apr 14, 7:21 PM EDT	Mesoscale Discussion	SPC	Columbiana, Jefferson, Mahoning	54 min
Apr 14, 6:46 PM EDT	Tornado Watch	SPC	Adams, Allegheny, Armstrong, Beaver, Bedford, Blair and 44 more	8 hr
Apr 14, 7:42 PM EDT	Mesoscale Discussion	SPC	York	63 min
Apr 14, 6:08 PM EDT	Tornado Watch	SPC	Berkeley, Grant, Hampshire, Hardy, Jefferson, Mineral and 2 more	9 hr
Apr 14, 6:30 PM EDT	Mesoscale Discussion	SPC	Barbour, Braxton, Calhoun, Clay, Doddridge, Fayette and 21 more	90 min
Apr 14, 7:12 PM EDT	Mesoscale Discussion	SPC	McDowell, Mercer, Monroe, Summers	2 hr
Apr 14, 7:21 PM EDT	Severe Thunderstorm Watch	SPC	Barbour, Braxton, Calhoun, Clay, Doddridge, Fayette and 19 more	5 hr

Nearby

Mesoscale Discussions in Ohio, 2019 Mesoscale Discussions in West Virginia, 2019 Mesoscale Discussions in Kentucky, 2019 Every mesoscale discussion in 2019

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.