Alert archive / Iowa / Dense Fog Advisories in 2021

Dense Fog Advisory 6, NWS La Crosse, WI

February 25, 2021Grant County, Wisconsin; 8 counties in Iowa; 7 counties in Minnesota

NWS La Crosse, WI issued this dense fog advisory at Feb 25, 2021, 10:11 PM CST for Grant County, Wisconsin; 8 counties in Iowa; 7 counties in Minnesota. It was in force for 9 hr.

The area

The counties it named.

The facts

Issued: Feb 25, 2021, 10:11 PM CST (04:11 UTC)
Expired: Feb 26, 2021, 6:41 AM CST
In force: 9 hr
Issued by: NWS La Crosse, WI

Counties Allamakee County, IA, Chickasaw County, IA, Clayton County, IA, Fayette County, IA, Floyd County, IA, Howard County, IA, Mitchell County, IA, Winneshiek County, IA, Dodge County, MN, Fillmore County, MN, Houston County, MN, Mower County, MN, Olmsted County, MN, Wabasha County, MN, Winona County, MN, Grant County, WI

The radar

The La Crosse radar (KARX), 81 km from the middle of the area, began a volume at 04:08 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.

In the hours before

Special weather statement, Feb 25, 8:10 PM CST, 2 hours 1 minute before

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Nearby

Dense Fog Advisories in Iowa, 2021 Dense Fog Advisories in Minnesota, 2021 Dense Fog Advisories in Wisconsin, 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.