Alert archive / Virginia / Severe Thunderstorm Watches in 2005
Severe Thunderstorm Watch 200
The Storm Prediction Center issued this severe thunderstorm watch at Apr 23, 2005, 1:10 PM EDT for 5 states. It was in force for 7 hr.
The area
The outline as issued.
The facts
- Issued
- Apr 23, 2005, 1:10 PM EDT (17:10 UTC)
- Expired
- Apr 23, 2005, 8:00 PM EDT
- In force
- 7 hr
- Issued by
- the Storm Prediction Center
All 93 counties
Anne Arundel County, MD, Baltimore County, MD, Calvert County, MD, Carroll County, MD, Charles County, MD, City of Baltimore, MD, Frederick County, MD, Harford County, MD, Howard County, MD, Montgomery County, MD, Prince George's County, MD, Saint Mary's County, MD, Washington County, MD, Granville County, NC, Halifax County, NC, Northampton County, NC, Person County, NC, Vance County, NC, Warren County, NC, Adams County, PA, Cumberland County, PA, Dauphin County, PA, Franklin County, PA, Fulton County, PA, Huntingdon County, PA, Lancaster County, PA, Lebanon County, PA, Perry County, PA, York County, PA, Albemarle County, VA, Amelia County, VA, Arlington County, VA, Brunswick County, VA, Buckingham County, VA, Caroline County, VA, Charles City County, VA, Charlotte County, VA, Chesterfield County, VA, City of Alexandria, VA, City of Charlottesville, VA, City of Colonial Heights, VA, City of Emporia, VA, City of Fairfax, VA, City of Falls Church, VA, City of Franklin, VA, City of Fredericksburg, VA, City of Hopewell, VA, City of Manassas, VA, City of Manassas Park, VA, City of Petersburg, VA, City of Richmond, VA, City of Winchester, VA, Clarke County, VA, Culpeper County, VA, Cumberland County, VA, Dinwiddie County, VA, Essex County, VA, Fairfax County, VA, Fauquier County, VA, Fluvanna County, VA, Frederick County, VA, Goochland County, VA, Greene County, VA, Greensville County, VA, Hanover County, VA, Henrico County, VA, James City County, VA, King and Queen County, VA, King George County, VA, King William County, VA, Loudoun County, VA, Louisa County, VA, Lunenburg County, VA, Madison County, VA, Mecklenburg County, VA, New Kent County, VA, Nottoway County, VA, Orange County, VA, Powhatan County, VA, Prince Edward County, VA, Prince George County, VA, Prince William County, VA, Rappahannock County, VA, Richmond County, VA, Southampton County, VA, Spotsylvania County, VA, Stafford County, VA, Surry County, VA, Sussex County, VA, Warren County, VA, Westmoreland County, VA, Berkeley County, WV, Jefferson County, WV
The radar
The Norfolk radar (KAKQ), 121 km from the middle of the area, began a volume at 17:11 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.
Warnings issued inside it
20 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 23, 1:44 PM EDT | Severe Thunderstorm Warning | AKQ | Cumberland, Prince Edward | 31 min |
| Apr 23, 2:15 PM EDT | Severe Thunderstorm Warning | AKQ | Amelia, Cumberland, Powhatan | 36 min |
| Apr 23, 2:22 PM EDT | Severe Thunderstorm Warning | CTP | Blair, Centre, Huntingdon | 53 min |
| Apr 23, 2:27 PM EDT | Severe Thunderstorm Warning | CTP | Franklin, Fulton | 63 min |
| Apr 23, 3:02 PM EDT | Severe Thunderstorm Warning | LWX | Spotsylvania, City of Fredericksburg | 45 min |
| Apr 23, 3:27 PM EDT | Severe Thunderstorm Warning | CTP | Franklin | 33 min |
| Apr 23, 3:33 PM EDT | Severe Thunderstorm Warning | LWX | Stafford | 57 min |
| Apr 23, 3:53 PM EDT | Severe Thunderstorm Warning | AKQ | Northampton | 40 min |
| Apr 23, 3:59 PM EDT | Severe Thunderstorm Warning | LWX | Prince William, City of Manassas, City of Manassas Park | 61 min |
| Apr 23, 4:01 PM EDT | Severe Thunderstorm Warning | CTP | Cumberland | 59 min |
| Apr 23, 4:16 PM EDT | Severe Thunderstorm Warning | CTP | Perry | 59 min |
| Apr 23, 4:17 PM EDT | Severe Thunderstorm Warning | LWX | Charles | 58 min |
| Apr 23, 4:18 PM EDT | Severe Thunderstorm Warning | AKQ | Surry, Sussex | 27 min |
| Apr 23, 4:29 PM EDT | Severe Thunderstorm Warning | LWX | Fairfax, City of Fairfax, City of Falls Church | 46 min |
| Apr 23, 4:50 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery | 40 min |
| Apr 23, 4:52 PM EDT | Severe Thunderstorm Warning | LWX | Prince George's | 53 min |
| Apr 23, 5:16 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel | 59 min |
| Apr 23, 5:47 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore | 58 min |
| Apr 23, 6:34 PM EDT | Severe Thunderstorm Warning | LWX | Harford | 26 min |
| Apr 23, 6:57 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster | 63 min |
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
The nearest sounding before it
Washington/Dulle, VA (KIAD), launched 12:00Z, 5.2 hours before the alert went out and 127 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
- 7 J/kg
- Mixed-layer CIN
- -138 J/kg
- Mixed-layer LCL
- 485 m above ground
- 0-6 km bulk shear
- 51 kt
- 0-1 km storm-relative helicity
- 122 m²/s²
- 0-3 km storm-relative helicity
- 166 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 23, 12:35 PM EDT | Mesoscale Discussion | SPC | Carroll, Charles, Frederick, Howard, Montgomery, Washington | 115 min |
| Apr 23, 3:17 PM EDT | Mesoscale Discussion | SPC | Calvert, Carroll, Charles, Frederick, Howard, Montgomery and 3 more | 88 min |
| Apr 23, 4:26 PM EDT | Mesoscale Discussion | SPC | Caroline, Cecil, Dorchester, Kent, Queen Anne's, Saint Mary's and 4 more | 94 min |
| Apr 23, 7:16 PM EDT | Mesoscale Discussion | SPC | Calvert, Caroline, Cecil, Dorchester, Harford, Kent and 6 more | 59 min |
| Apr 22, 9:05 PM EDT | Severe Thunderstorm Watch | SPC | Swain | 4 hr |
| Apr 22, 8:59 PM EDT | Mesoscale Discussion | SPC | Scott, City of Bristol, City of Norton | 31 min |
| Apr 22, 11:18 PM EDT | Mesoscale Discussion | SPC | Scott, City of Bristol | 57 min |
| Apr 22, 10:25 PM EDT | Mesoscale Discussion | SPC | Boone, Cabell, Calhoun, Clay, Doddridge, Gilmer and 15 more | 95 min |
Nearby
Severe Thunderstorm Watches in Virginia, 2005Severe Thunderstorm Watches in Maryland, 2005Severe Thunderstorm Watches in Pennsylvania, 2005Every severe thunderstorm watch in 2005
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.