Alert archive / Virginia / Mesoscale Discussions in 2008
Mesoscale Discussion 1885
The Storm Prediction Center issued this mesoscale discussion at Jul 23, 2008, 8:22 PM EDT for 10 counties in Maryland; 14 counties in North Carolina; 21 counties in Virginia. It was in force for 53 min.
The area
The outline as issued.
The facts
- Issued
- Jul 23, 2008, 8:22 PM EDT (00:22 UTC)
- Expired
- Jul 23, 2008, 9:15 PM EDT
- In force
- 53 min
- Issued by
- the Storm Prediction Center
All 45 counties
Anne Arundel County, MD, Baltimore County, MD, Charles County, MD, City of Baltimore, MD, Harford County, MD, Howard County, MD, Kent County, MD, Montgomery County, MD, Prince George's County, MD, Queen Anne's County, MD, Alamance County, NC, Anson County, NC, Cabarrus County, NC, Chatham County, NC, Durham County, NC, Granville County, NC, Lee County, NC, Montgomery County, NC, Moore County, NC, Orange County, NC, Person County, NC, Randolph County, NC, Richmond County, NC, Stanly County, NC, Amelia County, VA, Arlington County, VA, Caroline County, VA, City of Alexandria, VA, City of Fairfax, VA, City of Falls Church, VA, City of Fredericksburg, VA, City of Manassas, VA, City of Manassas Park, VA, Fairfax County, VA, Goochland County, VA, Hanover County, VA, King George County, VA, Louisa County, VA, Lunenburg County, VA, Mecklenburg County, VA, Nottoway County, VA, Powhatan County, VA, Prince William County, VA, Spotsylvania County, VA, Stafford County, VA
The radar
The Raleigh/Durham radar (KRAX), 117 km from the middle of the area, began a volume at 00:23 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, 0.4 hours before the alert went out and 91 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1044 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- -95 m²/s²
- 0-3 km storm-relative helicity
- 22 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 |
|---|---|---|---|---|
| Jul 23, 9:26 PM EDT | Mesoscale Discussion | SPC | Caroline, Cecil | 64 min |
Nearby
Mesoscale Discussions in Virginia, 2008Mesoscale Discussions in North Carolina, 2008Mesoscale Discussions in Maryland, 2008Every mesoscale discussion in 2008
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.