Alert archive / West Virginia / Mesoscale Discussions in 2025
Mesoscale Discussion 486
The Storm Prediction Center issued this mesoscale discussion at Apr 19, 2025, 6:20 PM EDT for 5 states. It was in force for 85 min.
The area
The outline as issued.
The facts
- Issued
- Apr 19, 2025, 6:20 PM EDT (22:20 UTC)
- Expired
- Apr 19, 2025, 7:45 PM EDT
- In force
- 85 min
- Issued by
- the Storm Prediction Center
- Concerning
- Severe potential...watch unlikely
- Chance of a watch
- 20%
All 56 counties
Greenup County, KY, Allegany County, MD, Garrett County, MD, Adams County, OH, Athens County, OH, Belmont County, OH, Gallia County, OH, Guernsey County, OH, Hocking County, OH, Jackson County, OH, Lawrence County, OH, Meigs County, OH, Monroe County, OH, Morgan County, OH, Noble County, OH, Perry County, OH, Pike County, OH, Scioto County, OH, Vinton County, OH, Washington County, OH, Allegheny County, PA, Bedford County, PA, Blair County, PA, Cambria County, PA, Fayette County, PA, Franklin County, PA, Fulton County, PA, Greene County, PA, Huntingdon County, PA, Indiana County, PA, Mifflin County, PA, Somerset County, PA, Washington County, PA, Westmoreland County, PA, Barbour County, WV, Brooke County, WV, Calhoun County, WV, Doddridge County, WV, Gilmer County, WV, Harrison County, WV, Jackson County, WV, Lewis County, WV, Marion County, WV, Marshall County, WV, Mason County, WV, Mineral County, WV, Monongalia County, WV, Ohio County, WV, Pleasants County, WV, Preston County, WV, Ritchie County, WV, Taylor County, WV, Tyler County, WV, Wetzel County, WV, Wirt County, WV, Wood County, WV
The radar
The Pittsburgh radar (KPBZ), 118 km from the middle of the area, began a volume at 22:21 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 nearest sounding before it
Cncnati-Daytn, OH (KILN), launched 12:00Z, 10.3 hours before the alert went out and 259 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.
- Mixed-layer CAPE
- 65 J/kg
- Mixed-layer CIN
- -227 J/kg
- Mixed-layer LCL
- 1307 m above ground
- 0-6 km bulk shear
- 86 kt
- 0-1 km storm-relative helicity
- 252 m²/s²
- 0-3 km storm-relative helicity
- 363 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.3
The text
As transmitted.
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</html>SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 19, 3:25 PM EDT | Mesoscale Discussion | SPC | Boone, Bracken, Campbell, Carroll, Gallatin, Grant and 11 more | 2 hr |
| Apr 19, 1:16 PM EDT | Mesoscale Discussion | SPC | Allegheny, Armstrong, Beaver, Butler, Cameron, Centre and 17 more | 119 min |
Nearby
Mesoscale Discussions in West Virginia, 2025Mesoscale Discussions in Ohio, 2025Mesoscale Discussions in Pennsylvania, 2025Every mesoscale discussion in 2025
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.