Dense Fog Advisories in Virginia
750 dense fog advisories since 1986. An alert counts here when it covered any part of the state, so the counties below add up to more than the state. The archive of dense fog advisories reaches back to 2005.
Dense Fog Advisories by county
Each county as a circle sized by its count since 1986. Tap one for its archive.
- Dense Fog Advisories
- 750
- Busiest year
- 201552 dense fog advisories
- Average year
- 34over 22 years on file
Over time
By year
Before late 2005 the archive holds only tornado, severe thunderstorm, flash flood and marine warnings, and from 1997 SPC's watches, so the jump that year is the archive widening, not the weather.
By month of the year
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Culpeper County185
- Orange County171
- Rappahannock County171
- Warren County169
- Page County168
- Madison County167
- Shenandoah County161
- Clarke County158
- Frederick County158
- City of Winchester158
- Greene County157
- Rockingham County156
- Fauquier County150
- City of Harrisonburg148
- Fairfax County141
- City of Fairfax141
- City of Charlottesville137
- Stafford County134
- Spotsylvania County125
- City of Fredericksburg125
- City of Staunton115
- City of Waynesboro115
- Nelson County114
- Arlington County106
- City of Alexandria106
- City of Falls Church106
- Carroll County105
- City of Galax105
- Amherst County102
- Lee County102
- Southampton County100
- City of Franklin100
- Patrick County99
- Rockbridge County99
- Scott County98
- Sussex County97
- Loudoun County97
- Greensville County95
- City of Emporia95
- Washington County94
89 more counties
- City of Bristol94
- Brunswick County93
- Henry County93
- City of Martinsville93
- Russell County93
- Wise County93
- City of Norton93
- Floyd County92
- King George County92
- Dinwiddie County91
- Pulaski County91
- Surry County91
- City of Radford91
- Montgomery County90
- Pittsylvania County90
- City of Danville90
- Accomack County89
- Wythe County87
- Campbell County86
- Halifax County86
- Prince George County86
- City of Hopewell86
- City of Lynchburg86
- City of Petersburg86
- Mecklenburg County82
- James City County81
- City of Chesapeake81
- City of Williamsburg81
- Bedford County80
- Franklin County80
- Grayson County79
- New Kent County78
- Nottoway County78
- Charles City County77
- Lunenburg County77
- Northampton County77
- Amelia County75
- Botetourt County75
- City of Buena Vista74
- City of Lexington74
- Roanoke County73
- City of Roanoke73
- City of Salem73
- Charlotte County72
- Powhatan County72
- Goochland County71
- Richmond County71
- Westmoreland County71
- Gloucester County71
- Prince Edward County69
- Mathews County69
- Middlesex County69
- Caroline County68
- Appomattox County67
- Lancaster County67
- City of Virginia Beach66
- Northumberland County66
- Bland County65
- Buckingham County65
- Cumberland County64
- Fluvanna County64
- Giles County64
- Smyth County61
- Craig County60
- Alleghany County52
- City of Covington52
- Bath County51
- Highland County45
- City of Newport News41
- Tazewell County38
- York County38
- City of Poquoson38
- City of Hampton36
- Hanover County33
- King and Queen County33
- King William County33
- Chesterfield County32
- Essex County32
- Henrico County31
- City of Colonial Heights31
- Louisa County29
- City of Richmond29
- Albemarle County25
- Augusta County25
- Prince William County14
- City of Manassas12
- City of Manassas Park12
- Buchanan County5
- Dickenson County5
The latest dense fog advisories
The most recent on file, newest first.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 13, 3:38 AM EDT | Dense Fog Advisory | MRX | Lee | 5 hr |
| Aug 15, 1:48 AM EDT | Dense Fog Advisory | LWX | Clarke, Frederick, Page, Shenandoah, Warren, City of Winchester | 8 hr |
| Aug 10, 4:11 AM EDT | Dense Fog Advisory | MRX | Lee, Russell, Scott, Washington, City of Bristol | 6 hr |
| Jun 3, 2:54 AM EDT | Dense Fog Advisory | RNK | Bland, Carroll, Craig, Floyd, Giles, Grayson and 6 more | 6 hr |
| May 12, 6:28 AM EDT | Dense Fog Advisory | RNK | Bedford, Campbell, Carroll, Floyd, Franklin, Halifax and 10 more | 3 hr |
| Apr 26, 12:52 AM EDT | Dense Fog Advisory | MRX | Lee, Russell, Scott, Washington, Wise, City of Bristol and 1 more | 9 hr |
| Mar 9, 5:12 AM EDT | Dense Fog Advisory | AKQ | Accomack, Amelia, Brunswick, Caroline, Charles City, Chesterfield and 43 more | 6 hr |
| Mar 7, 2:18 AM EST | Dense Fog Advisory | AKQ | Accomack, Amelia, Brunswick, Caroline, Charles City, Chesterfield and 43 more | 10 hr |
| Mar 6, 11:10 PM EST | Dense Fog Advisory | LWX | Clarke, Frederick, Page, Rockingham, Shenandoah, Warren and 2 more | 11 hr |
| Mar 6, 3:28 AM EST | Dense Fog Advisory | LWX | Clarke, Culpeper, Fairfax, Fauquier, Frederick, Greene and 17 more | 7 hr |
| Mar 5, 3:02 AM EST | Dense Fog Advisory | AKQ | Accomack, Caroline, Essex, Fluvanna, Goochland, Hanover and 6 more | 7 hr |
| Mar 4, 8:50 PM EST | Dense Fog Advisory | LWX | Arlington, Clarke, Culpeper, Fairfax, Fauquier, Frederick and 23 more | 13 hr |
Nearby
Sources
National Weather Service watches, warnings, advisories and statements from the Iowa Environmental Mesonet's VTEC archive, which reconstructs tornado, severe thunderstorm, flash flood and marine warnings back to 1986 from the NWS text archive. Storm Prediction Center watches and mesoscale discussions from SPC's archive through the Mesonet. County centers from the US Census Bureau. Warning verification from the Mesonet's Cow. Rebuilt daily.