Alert archive / North Carolina / Mesoscale Discussions in 2019
Mesoscale Discussion 290
The Storm Prediction Center issued this mesoscale discussion at Apr 8, 2019, 1:49 PM EDT for 34 counties in North Carolina; 25 counties in Virginia. It was in force for 86 min.
The area
The outline as issued.
The facts
- Issued
- Apr 8, 2019, 1:49 PM EDT (17:49 UTC)
- Expired
- Apr 8, 2019, 3:15 PM EDT
- In force
- 86 min
- Issued by
- the Storm Prediction Center
- Chance of a watch
- 80%
All 59 counties
Alamance County, NC, Alexander County, NC, Alleghany County, NC, Anson County, NC, Burke County, NC, Cabarrus County, NC, Caldwell County, NC, Caswell County, NC, Catawba County, NC, Chatham County, NC, Cleveland County, NC, Davidson County, NC, Davie County, NC, Durham County, NC, Forsyth County, NC, Gaston County, NC, Granville County, NC, Guilford County, NC, Iredell County, NC, Lincoln County, NC, Mecklenburg County, NC, Montgomery County, NC, Moore County, NC, Orange County, NC, Person County, NC, Randolph County, NC, Rockingham County, NC, Rowan County, NC, Stanly County, NC, Stokes County, NC, Surry County, NC, Union County, NC, Wilkes County, NC, Yadkin County, NC, Appomattox County, VA, Bedford County, VA, Botetourt County, VA, Campbell County, VA, Carroll County, VA, Charlotte County, VA, City of Danville, VA, City of Galax, VA, City of Lynchburg, VA, City of Martinsville, VA, City of Radford, VA, City of Roanoke, VA, City of Salem, VA, Craig County, VA, Floyd County, VA, Franklin County, VA, Grayson County, VA, Halifax County, VA, Henry County, VA, Montgomery County, VA, Patrick County, VA, Pittsylvania County, VA, Pulaski County, VA, Roanoke County, VA, Wythe County, VA
The radar
The Roanoke radar (KFCX), 62 km from the middle of the area, began a volume at 17:49 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
Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 5.8 hours before the alert went out and 56 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
- 233 J/kg
- Mixed-layer CIN
- -41 J/kg
- Mixed-layer LCL
- 515 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 124 m²/s²
- 0-3 km storm-relative helicity
- 120 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 0.5
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 8, 12:01 PM EDT | Mesoscale Discussion | SPC | Ashe, Avery, Buncombe, Haywood, Henderson, Jackson and 7 more | 119 min |
| Apr 8, 2:32 PM EDT | Severe Thunderstorm Watch | SPC | Alamance, Anson, Cabarrus, Caswell, Catawba, Chatham and 32 more | 7 hr |
| Apr 8, 4:22 PM EDT | Mesoscale Discussion | SPC | Alamance, Cabarrus, Caswell, Chatham, Davidson, Davie and 16 more | 83 min |
| Apr 8, 5:23 PM EDT | Mesoscale Discussion | SPC | Bertie, Camden, Chowan, Currituck, Durham, Edgecombe and 23 more | 97 min |
| Apr 8, 5:43 PM EDT | Severe Thunderstorm Watch | SPC | Beaufort, Bertie, Camden, Chowan, Currituck, Edgecombe and 15 more | 4 hr |
Nearby
Mesoscale Discussions in North Carolina, 2019Mesoscale Discussions in Virginia, 2019Every 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.