Alert archive / Wisconsin / Dense Fog Advisories in 2021

Dense Fog Advisory 7, NWS La Crosse, WI

February 28, 20218 counties in Wisconsin; 4 counties in Iowa; Fillmore County, Houston County, Minnesota

NWS La Crosse, WI issued this dense fog advisory at Feb 28, 2021, 6:49 AM CST for 8 counties in Wisconsin; 4 counties in Iowa; Fillmore County, Houston County, Minnesota. It was in force for 5 hr.

The area

The counties it named.

The facts

Issued: Feb 28, 2021, 6:49 AM CST (12:49 UTC)
Expired: Feb 28, 2021, 12:00 PM CST
In force: 5 hr
Issued by: NWS La Crosse, WI

Counties Allamakee County, IA, Clayton County, IA, Fayette County, IA, Winneshiek County, IA, Fillmore County, MN, Houston County, MN, Adams County, WI, Crawford County, WI, Grant County, WI, Juneau County, WI, La Crosse County, WI, Monroe County, WI, Richland County, WI, Vernon County, WI

The radar

The La Crosse radar (KARX), 42 km from the middle of the area, began a volume at 12:54 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.

What forecasters said that day

The local office's own words before this dense fog advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS La Crosse, WI wrote its last area forecast discussion before this dense fog advisory went out at Feb 27, 5:59 PM CST, 12 hours 50 minutes earlier.

Area forecast discussion, Feb 27, 5:59 PM CST, 12 hours 50 minutes before

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Hazardous weather outlook, Feb 27, 2:32 PM CST, 16 hours 17 minutes before

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Nearby

Dense Fog Advisories in Wisconsin, 2021 Dense Fog Advisories in Iowa, 2021 Dense Fog Advisories in Minnesota, 2021 Every dense fog advisory in 2021

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.