Virginia, 2011

Dense Fog in Virginia, November 10, 2011

November 10, 2011 · NWS LWX · 1 event in 1 county or zone

High pressure provided a good setup for radiational cooling during the early morning hours of the 10th. The combination of radiational cooling and relatively high amounts of low-level moisture caused areas of dense fog to develop across the Virginia Piedmont.

Where it happened

Every event with a place to put it; 1 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.

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The toll

Deaths
0
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
1

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

What happened

The episode as NWS LWX wrote it up.

High pressure provided a good setup for radiational cooling during the early morning hours of the 10th. The combination of radiational cooling and relatively high amounts of low-level moisture caused areas of dense fog to develop across the Virginia Piedmont.

What forecasters said that day

The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Baltimore/Washington wrote its last area forecast discussion before the first event at Nov 9, 2:56 PM EST, 15 hours 4 minutes earlier.

Area forecast discussion, Nov 9, 2:56 PM EST, 15 hours 4 minutes before
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Hazardous weather outlook, Nov 9, 6:47 PM EST, 11 hours 13 minutes before
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The radar

The national radar mosaic for the moment the first event began.

Open the radar archive at this moment

Event by event

1 dense fog. Local standard time, as filed.

Dense Fog, King George

When
November 10, 6:00 AM EST to 8:52 AM EST
Where
King George forecast zone
Reported by
AWOS
Coordinates
38.274, -77.156 (the zone’s center; the record gives no point)

Visibility was reported to be around one quarter mile.

What these are

Dense Fog
Fog reducing visibility to a quarter mile or less, filed where it caused accidents or disruption.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in Virginia in 2011Every state in 2011This day in weather historyWarnings in Virginia, November 2011

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-10-01. Each event’s entry at NCEI: 353696.