Alert archive / West Virginia / Mesoscale Discussions in 2015

Mesoscale Discussion 1249

June 30, 20156 states

The Storm Prediction Center issued this mesoscale discussion at Jun 30, 2015, 3:48 PM EDT for 6 states. It was in force for 117 min.

The area

The outline as issued.

The facts

Issued
Jun 30, 2015, 3:48 PM EDT (19:48 UTC)
Expired
Jun 30, 2015, 5:45 PM EDT
In force
117 min
Issued by
the Storm Prediction Center
All 192 counties

Bath County, KY, Bourbon County, KY, Boyd County, KY, Bracken County, KY, Breathitt County, KY, Carter County, KY, Clark County, KY, Elliott County, KY, Estill County, KY, Fayette County, KY, Fleming County, KY, Floyd County, KY, Grant County, KY, Greenup County, KY, Harrison County, KY, Jackson County, KY, Johnson County, KY, Knott County, KY, Lawrence County, KY, Lee County, KY, Leslie County, KY, Letcher County, KY, Lewis County, KY, Madison County, KY, Magoffin County, KY, Martin County, KY, Mason County, KY, Menifee County, KY, Montgomery County, KY, Morgan County, KY, Nicholas County, KY, Owsley County, KY, Pendleton County, KY, Perry County, KY, Pike County, KY, Powell County, KY, Robertson County, KY, Rowan County, KY, Scott County, KY, Wolfe County, KY, Allegany County, MD, Garrett County, MD, Washington County, MD, Adams County, OH, Athens County, OH, Belmont County, OH, Carroll County, OH, Columbiana County, OH, Gallia County, OH, Guernsey County, OH, Harrison County, OH, Jackson County, OH, Jefferson County, OH, Lawrence County, OH, Mahoning County, OH, Meigs County, OH, Monroe County, OH, Morgan County, OH, Noble County, OH, Scioto County, OH, Tuscarawas County, OH, Washington County, OH, Allegheny County, PA, Armstrong County, PA, Beaver County, PA, Bedford County, PA, Blair County, PA, Butler County, PA, Cambria County, PA, Cameron County, PA, Centre County, PA, Clarion County, PA, Clearfield County, PA, Elk County, PA, Fayette County, PA, Forest County, PA, Franklin County, PA, Fulton County, PA, Greene County, PA, Huntingdon County, PA, Indiana County, PA, Jefferson County, PA, Lawrence County, PA, Mercer County, PA, Mifflin County, PA, Somerset County, PA, Venango County, PA, Washington County, PA, Westmoreland County, PA, Albemarle County, VA, Alleghany County, VA, Amherst County, VA, Augusta County, VA, Bath County, VA, Bedford County, VA, Bland County, VA, Botetourt County, VA, Buchanan County, VA, Carroll County, VA, City of Buena Vista, VA, City of Charlottesville, VA, City of Covington, VA, City of Harrisonburg, VA, City of Lexington, VA, City of Lynchburg, VA, City of Norton, VA, City of Radford, VA, City of Roanoke, VA, City of Salem, VA, City of Staunton, VA, City of Waynesboro, VA, City of Winchester, VA, Clarke County, VA, Craig County, VA, Dickenson County, VA, Fauquier County, VA, Floyd County, VA, Frederick County, VA, Giles County, VA, Greene County, VA, Highland County, VA, Madison County, VA, Montgomery County, VA, Nelson County, VA, Page County, VA, Pulaski County, VA, Rappahannock County, VA, Roanoke County, VA, Rockbridge County, VA, Rockingham County, VA, Russell County, VA, Shenandoah County, VA, Smyth County, VA, Tazewell County, VA, Warren County, VA, Wise County, VA, Wythe County, VA, Barbour County, WV, Berkeley 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, Grant County, WV, Greenbrier County, WV, Hampshire County, WV, Hancock County, WV, Hardy County, WV, Harrison County, WV, Jackson County, WV, Jefferson 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, Mercer County, WV, Mineral County, WV, Mingo County, WV, Monongalia County, WV, Monroe County, WV, Morgan County, WV, Nicholas County, WV, Ohio County, WV, Pendleton 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, Summers 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 Charleston,WV radar (KRLX), 124 km from the middle of the area, began a volume at 19:50 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

Pittsburgh, PA (KAGC), launched 12:00Z, 7.8 hours before the alert went out and 148 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 2015-06-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 38 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 2015-06-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 58 square meters per square second.1939587897Sfc1 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
38 J/kg
Mixed-layer CIN
-28 J/kg
Mixed-layer LCL
606 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
58 m²/s²
0-3 km storm-relative helicity
87 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 30, 12:03 PM EDTMesoscale DiscussionSPCBoone, Bourbon, Boyd, Bracken, Campbell, Carroll and 20 more2 hr
Jun 30, 12:55 PM EDTMesoscale DiscussionSPCBell, Breathitt, Clay, Clinton, Floyd, Harlan and 22 more3 hr
Jun 30, 12:58 PM EDTSevere Thunderstorm WatchSPCAnderson, Boone, Bourbon, Bracken, Campbell, Carroll and 26 more8 hr
Jun 30, 1:37 PM EDTSevere Thunderstorm WatchSPCBath, Bell, Boyd, Breathitt, Carter, Clay and 30 more7 hr
Jun 30, 2:32 PM EDTMesoscale DiscussionSPCAdair, Anderson, Boyle, Breckinridge, Bullitt, Casey and 24 more2 hr
Jun 30, 4:33 PM EDTMesoscale DiscussionSPCMcCreary, Whitley117 min
Jun 30, 7:08 PM EDTMesoscale DiscussionSPCAdair, Anderson, Bath, Bell, Bourbon, Boyd and 61 more67 min
Jun 30, 12:31 PM EDTMesoscale DiscussionSPCAnne Arundel, Baltimore, Carroll, Cecil, Frederick, Harford and 6 more2 hr
Jun 30, 1:21 PM EDTSevere Thunderstorm WatchSPCAnne Arundel, Baltimore, Caroline, Carroll, Cecil, Frederick and 7 more7 hr
Jun 30, 1:38 PM EDTMesoscale DiscussionSPCCharles, Saint Mary's3 hr
Jun 30, 2:22 PM EDTSevere Thunderstorm WatchSPCAllegany, Calvert, Charles, Montgomery, Prince George's, Saint Mary's7 hr
Jun 30, 3:34 PM EDTSevere Thunderstorm WatchSPCDorchester6 hr
Jun 30, 4:15 PM EDTMesoscale DiscussionSPCAnne Arundel, Baltimore, Calvert, Caroline, Carroll, Cecil and 11 more2 hr
Jun 30, 7:38 PM EDTMesoscale DiscussionSPCAllegany, Garrett67 min
Jun 30, 2:57 PM EDTMesoscale DiscussionSPCBucks, Montgomery, Northampton63 min
Jun 30, 7:22 PM EDTMesoscale DiscussionSPCBrunswick, Dinwiddie, Greensville, Southampton, Sussex, City of Emporia and 2 more83 min

Nearby

Mesoscale Discussions in West Virginia, 2015Mesoscale Discussions in Virginia, 2015Mesoscale Discussions in Kentucky, 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.