Alert archive / Missouri / Dense Fog Advisories in 2011

Dense Fog Advisory 7, NWS St. Louis, MO

September 22, 201114 counties in Missouri; 12 counties in Illinois

NWS St. Louis, MO issued this dense fog advisory at Sep 22, 2011, 11:52 PM CDT for 14 counties in Missouri; 12 counties in Illinois. It was in force for 10 hr.

The area

The counties it named.

The facts

Issued
Sep 22, 2011, 11:52 PM CDT (04:52 UTC)
Expired
Sep 23, 2011, 10:00 AM CDT
In force
10 hr
Issued by
NWS St. Louis, MO
All 26 counties

Bond County, IL, Clinton County, IL, Fayette County, IL, Jersey County, IL, Macoupin County, IL, Madison County, IL, Marion County, IL, Monroe County, IL, Montgomery County, IL, Randolph County, IL, Saint Clair County, IL, Washington County, IL, City of Saint Louis, MO, Crawford County, MO, Franklin County, MO, Gasconade County, MO, Iron County, MO, Jefferson County, MO, Madison County, MO, Reynolds County, MO, Saint Charles County, MO, Saint Francois County, MO, Saint Louis County, MO, Sainte Genevieve County, MO, Warren County, MO, Washington County, MO

The radar

The St Louis radar (KLSX), 50 km from the middle of the area, began a volume at 04:55 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.

Nearby

Dense Fog Advisories in Missouri, 2011Dense Fog Advisories in Illinois, 2011Every dense fog advisory in 2011

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.