Alert archive / Virginia / Mesoscale Discussions in 2016
Mesoscale Discussion 954
The Storm Prediction Center issued this mesoscale discussion at Jun 16, 2016, 9:21 PM EDT for Anne Arundel County, Charles County, Prince George's County, Maryland; 46 counties in Virginia; Mercer County, Monroe County, West Virginia. It was in force for 54 min.
The area
The outline as issued.
The facts
- Issued
- Jun 16, 2016, 9:21 PM EDT (01:21 UTC)
- Expired
- Jun 16, 2016, 10:15 PM EDT
- In force
- 54 min
- Issued by
- the Storm Prediction Center
All 51 counties
Anne Arundel County, MD, Charles County, MD, Prince George's County, MD, Amherst County, VA, Appomattox County, VA, Arlington County, VA, Bedford County, VA, Bland County, VA, Botetourt County, VA, Buckingham County, VA, Campbell County, VA, Caroline County, VA, Carroll County, VA, City of Alexandria, VA, City of Buena Vista, VA, City of Fairfax, VA, City of Falls Church, VA, City of Fredericksburg, VA, City of Lexington, VA, City of Lynchburg, VA, City of Manassas, VA, City of Manassas Park, VA, City of Radford, VA, City of Roanoke, VA, City of Salem, VA, Craig County, VA, Cumberland County, VA, Fairfax County, VA, Floyd County, VA, Fluvanna County, VA, Franklin County, VA, Giles County, VA, Goochland County, VA, Hanover County, VA, King George County, VA, Louisa County, VA, Montgomery County, VA, Nelson County, VA, Powhatan County, VA, Prince William County, VA, Pulaski County, VA, Roanoke County, VA, Rockbridge County, VA, Smyth County, VA, Spotsylvania County, VA, Stafford County, VA, Tazewell County, VA, Westmoreland County, VA, Wythe County, VA, Mercer County, WV, Monroe County, WV
The radar
The Roanoke radar (KFCX), 98 km from the middle of the area, began a volume at 01:20 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
Roanoke, VA (KRNK), launched 00:00Z, 1.4 hours before the alert went out and 51 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
- 736 J/kg
- Mixed-layer CIN
- -8 J/kg
- Mixed-layer LCL
- 1691 m above ground
- 0-6 km bulk shear
- 44 kt
- 0-1 km storm-relative helicity
- 174 m²/s²
- 0-3 km storm-relative helicity
- 285 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 8.6
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 |
|---|---|---|---|---|
| Jun 16, 8:03 PM EDT | Severe Thunderstorm Watch | SPC | Amelia, Brunswick, Caroline, Charles City, Chesterfield, Cumberland and 45 more | 6 hr |
Nearby
Mesoscale Discussions in Virginia, 2016Mesoscale Discussions in Maryland, 2016Mesoscale Discussions in West Virginia, 2016Every mesoscale discussion in 2016
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.