Alert archive / Virginia / Mesoscale Discussions in 2003
Mesoscale Discussion 246
The Storm Prediction Center issued this mesoscale discussion at Mar 13, 2003, 5:33 PM CST for 7 states. It was in force for 87 min.
The area
The outline as issued.
The facts
- Issued
- Mar 13, 2003, 5:33 PM CST (23:33 UTC)
- Expired
- Mar 13, 2003, 7:00 PM CST
- In force
- 87 min
- Issued by
- the Storm Prediction Center
All 163 counties
Covington County, AL, Escambia County, FL, Appling County, GA, Baldwin County, GA, Bibb County, GA, Bleckley County, GA, Burke County, GA, Butts County, GA, Candler County, GA, Chattahoochee County, GA, Columbia County, GA, Crawford County, GA, Dodge County, GA, Elbert County, GA, Emanuel County, GA, Evans County, GA, Glascock County, GA, Greene County, GA, Hancock County, GA, Houston County, GA, Jasper County, GA, Jefferson County, GA, Jenkins County, GA, Johnson County, GA, Jones County, GA, Lamar County, GA, Laurens County, GA, Lincoln County, GA, Macon County, GA, McDuffie County, GA, Monroe County, GA, Montgomery County, GA, Morgan County, GA, Muscogee County, GA, Oglethorpe County, GA, Peach County, GA, Pierce County, GA, Pulaski County, GA, Putnam County, GA, Richmond County, GA, Screven County, GA, Talbot County, GA, Taliaferro County, GA, Tattnall County, GA, Taylor County, GA, Telfair County, GA, Toombs County, GA, Treutlen County, GA, Twiggs County, GA, Upson County, GA, Ware County, GA, Warren County, GA, Washington County, GA, Wayne County, GA, Wheeler County, GA, Wilkes County, GA, Wilkinson County, GA, Calvert County, MD, Charles County, MD, Dorchester County, MD, Prince George's County, MD, Saint Mary's County, MD, Talbot County, MD, Alamance County, NC, Cabarrus County, NC, Caswell County, NC, Chatham County, NC, Davidson County, NC, Davie County, NC, Durham County, NC, Franklin County, NC, Gaston County, NC, Granville County, NC, Halifax County, NC, Hertford County, NC, Iredell County, NC, Lincoln County, NC, Mecklenburg County, NC, Nash County, NC, Northampton County, NC, Orange County, NC, Person County, NC, Rowan County, NC, Stanly County, NC, Union County, NC, Vance County, NC, Warren County, NC, Abbeville County, SC, Aiken County, SC, Barnwell County, SC, Cherokee County, SC, Chester County, SC, Edgefield County, SC, Fairfield County, SC, Greenwood County, SC, Lancaster County, SC, Laurens County, SC, Lexington County, SC, McCormick County, SC, Newberry County, SC, Richland County, SC, Saluda County, SC, Spartanburg County, SC, Union County, SC, York County, SC, Amelia County, VA, Appomattox County, VA, Brunswick County, VA, Buckingham County, VA, Campbell County, VA, Caroline County, VA, Charles City County, VA, Charlotte County, VA, Chesterfield County, VA, City of Alexandria, VA, City of Colonial Heights, VA, City of Danville, VA, City of Emporia, VA, City of Franklin, VA, City of Fredericksburg, VA, City of Hampton, VA, City of Hopewell, VA, City of Newport News, VA, City of Petersburg, VA, City of Poquoson, VA, City of Richmond, VA, City of Suffolk, VA, City of Williamsburg, VA, Cumberland County, VA, Dinwiddie County, VA, Essex County, VA, Fluvanna County, VA, Gloucester County, VA, Goochland County, VA, Greensville County, VA, Halifax County, VA, Hanover County, VA, Henrico County, VA, Isle of Wight County, VA, James City County, VA, King and Queen County, VA, King George County, VA, King William County, VA, Lancaster County, VA, Louisa County, VA, Lunenburg County, VA, Mathews County, VA, Mecklenburg County, VA, Middlesex County, VA, New Kent County, VA, Northumberland County, VA, Nottoway County, VA, Powhatan County, VA, Prince Edward County, VA, Prince George County, VA, Richmond County, VA, Southampton County, VA, Spotsylvania County, VA, Stafford County, VA, Surry County, VA, Sussex County, VA, Westmoreland County, VA, York County, VA
The radar
The Columbia radar (KCAE), 112 km from the middle of the area, began a volume at 23:34 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
Roanoke, VA (KRNK), launched 12:00Z, 11.6 hours before the alert went out and 279 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
- 1559 m above ground
- 0-6 km bulk shear
- 52 kt
- 0-1 km storm-relative helicity
- 73 m²/s²
- 0-3 km storm-relative helicity
- 68 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 |
|---|---|---|---|---|
| Mar 13, 1:58 AM CST | Mesoscale Discussion | SPC | Covington, Escambia, Geneva, Houston | 3 hr |
| Mar 13, 9:39 AM CST | Mesoscale Discussion | SPC | Autauga, Baldwin, Bibb, Blount, Butler, Calhoun and 40 more | 2 hr |
| Mar 13, 10:10 AM CST | Severe Thunderstorm Watch | SPC | Autauga, Bibb, Blount, Butler, Calhoun, Cherokee and 37 more | 6 hr |
| Mar 13, 12:59 PM CST | Mesoscale Discussion | SPC | Autauga, Bibb, Blount, Butler, Calhoun, Chilton and 30 more | 2 hr |
| Mar 13, 2:15 PM CST | Mesoscale Discussion | SPC | Autauga, Baldwin, Barbour, Bibb, Bullock, Butler and 35 more | 2 hr |
| Mar 13, 3:10 PM CST | Severe Thunderstorm Watch | SPC | Baldwin, Barbour, Bullock, Butler, Coffee, Conecuh and 12 more | 5 hr |
| Mar 13, 5:55 PM CST | Severe Thunderstorm Watch | SPC | Barbour, Dale, Geneva, Henry, Houston, Russell | 5 hr |
| Mar 13, 8:39 AM CST | Mesoscale Discussion | SPC | Alachua, Baker, Bradford, Citrus, Clay, Columbia and 24 more | 2 hr |
| Mar 13, 8:55 AM CST | Tornado Watch | SPC | Alachua, Baker, Bradford, Clay, Columbia, Dixie and 10 more | 6 hr |
| Mar 13, 12:55 PM CST | Mesoscale Discussion | SPC | Fannin, Gilmer, Habersham, Murray, Rabun, Stephens and 4 more | 2 hr |
| Mar 13, 1:20 PM CST | Severe Thunderstorm Watch | SPC | Allegany, Baltimore, Carroll, Frederick, Harford, Howard and 3 more | 6 hr |
| Mar 13, 5:04 PM CST | Mesoscale Discussion | SPC | Calvert, Charles, Dorchester, Prince George's, Saint Mary's, Talbot | 86 min |
Nearby
Mesoscale Discussions in Virginia, 2003Mesoscale Discussions in Georgia, 2003Mesoscale Discussions in North Carolina, 2003Every mesoscale discussion in 2003
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.