Alert archive / Wisconsin / Dense Fog Advisories in 2021

Dense Fog Advisory 5, NWS La Crosse, WI

January 6, 202110 counties in Wisconsin; Clayton County, Iowa

NWS La Crosse, WI issued this dense fog advisory at Jan 6, 2021, 2:02 PM CST for 10 counties in Wisconsin; Clayton County, Iowa. It took effect at Jan 6, 2021, 6:00 PM CST. It was in force for 15 hr.

The area

The counties it named.

The facts

Issued: Jan 6, 2021, 2:02 PM CST (20:02 UTC)
In effect from: Jan 6, 2021, 6:00 PM CST
Expired: Jan 7, 2021, 9:04 AM CST
In force: 15 hr
Issued by: NWS La Crosse, WI

Counties Clayton County, IA, Adams County, WI, Clark County, WI, Crawford County, WI, Grant County, WI, Jackson County, WI, Juneau County, WI, Monroe County, WI, Richland County, WI, Taylor County, WI, Vernon County, WI

The radar

The La Crosse radar (KARX), 47 km from the middle of the area, began a volume at 20:07 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 Jan 5, 5:54 PM CST, 20 hours 8 minutes earlier.

Area forecast discussion, Jan 5, 5:54 PM CST, 20 hours 8 minutes before

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Nearby

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