Alert archive / West Virginia / Mesoscale Discussions in 2015
Mesoscale Discussion 262
The Storm Prediction Center issued this mesoscale discussion at Apr 9, 2015, 8:02 PM EDT for 14 counties in Ohio; 21 counties in West Virginia. It was in force for 118 min.
The area
The outline as issued.
The facts
- Issued
- Apr 9, 2015, 8:02 PM EDT (00:02 UTC)
- Expired
- Apr 9, 2015, 10:00 PM EDT
- In force
- 118 min
- Issued by
- the Storm Prediction Center
All 35 counties
Athens County, OH, Fairfield County, OH, Fayette County, OH, Gallia County, OH, Hocking County, OH, Jackson County, OH, Meigs County, OH, Morgan County, OH, Perry County, OH, Pickaway County, OH, Pike County, OH, Ross County, OH, Vinton County, OH, Washington County, OH, Barbour County, WV, Braxton County, WV, Calhoun County, WV, Clay County, WV, Doddridge County, WV, Gilmer County, WV, Harrison County, WV, Jackson County, WV, Lewis County, WV, Mason County, WV, Pleasants County, WV, Putnam County, WV, Randolph County, WV, Ritchie County, WV, Roane County, WV, Taylor County, WV, Tucker County, WV, Tyler County, WV, Upshur County, WV, Wirt County, WV, Wood County, WV
The radar
The Charleston,WV radar (KRLX), 84 km from the middle of the area, began a volume at 00:03 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 00:00Z, 0.0 hours before the alert went out and 187 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
- 849 J/kg
- Mixed-layer CIN
- -49 J/kg
- Mixed-layer LCL
- 1308 m above ground
- 0-6 km bulk shear
- 48 kt
- 0-1 km storm-relative helicity
- 252 m²/s²
- 0-3 km storm-relative helicity
- 283 m²/s²
- Significant tornado parameter
- 0.8
- Supercell composite
- 11.8
The text
As transmitted, in the capitals the NWS used until 2016.
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</html>SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 9, 11:56 PM EDT | Mesoscale Discussion | SPC | Auglaize, Butler, Darke, Hamilton, Miami, Montgomery and 3 more | 94 min |
| Apr 10, 1:37 AM EDT | Tornado Watch | SPC | Adams, Brown, Butler, Champaign, Clark, Clermont and 20 more | 5 hr |
| Apr 10, 2:54 AM EDT | Mesoscale Discussion | SPC | Defiance, Fulton, Henry, Williams | 66 min |
| Apr 10, 3:32 AM EDT | Mesoscale Discussion | SPC | Adams, Athens, Belmont, Brown, Carroll, Coshocton and 28 more | 58 min |
| Apr 10, 4:09 AM EDT | Severe Thunderstorm Watch | SPC | Athens, Belmont, Carroll, Coshocton, Gallia, Guernsey and 12 more | 5 hr |
| Apr 10, 6:16 AM EDT | Mesoscale Discussion | SPC | Gallia, Lawrence, Meigs | 59 min |
Nearby
Mesoscale Discussions in West Virginia, 2015Mesoscale Discussions in Ohio, 2015Every mesoscale discussion in 2015
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.