Alert archive / Illinois / Dense Fog Advisories in 2017
Dense Fog Advisory 7, NWS St. Louis, MO
NWS St. Louis, MO issued this dense fog advisory at Feb 19, 2017, 10:15 PM CST for 5 counties in Missouri; 13 counties in Illinois. It took effect at Feb 20, 2017, 12:00 AM CST. It was in force for 6 hr.
The area
The counties it named.
The facts
- Issued
- Feb 19, 2017, 10:15 PM CST (04:15 UTC)
- In effect from
- Feb 20, 2017, 12:00 AM CST
- Expired
- Feb 20, 2017, 6:11 AM CST
- In force
- 6 hr
- Issued by
- NWS St. Louis, MO
Counties Bond County, IL, Clinton County, IL, Fayette County, IL, Greene 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, Iron County, MO, Madison County, MO, Reynolds County, MO, Saint Francois County, MO, Sainte Genevieve County, MO
The radar
The St Louis radar (KLSX), 70 km from the middle of the area, began a volume at 04:15 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 Illinois, 2017Dense Fog Advisories in Missouri, 2017Every dense fog advisory in 2017
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.