Alert archive / Wisconsin / Dense Fog Advisories in 2017

Dense Fog Advisory 4, NWS Twin Cities, MN

January 21, 20177 counties in Minnesota; 9 counties in Wisconsin

NWS Twin Cities, MN issued this dense fog advisory at Jan 21, 2017, 12:18 PM CST for 7 counties in Minnesota; 9 counties in Wisconsin. It took effect at Jan 21, 2017, 6:00 PM CST. It was in force for 18 hr.

The area

The counties it named.

The facts

Issued: Jan 21, 2017, 12:18 PM CST (18:18 UTC)
In effect from: Jan 21, 2017, 6:00 PM CST
Expired: Jan 22, 2017, 12:00 PM CST
In force: 18 hr
Issued by: NWS Twin Cities, MN

Counties Anoka County, MN, Chisago County, MN, Hennepin County, MN, Isanti County, MN, Kanabec County, MN, Ramsey County, MN, Washington County, MN, Barron County, WI, Chippewa County, WI, Dunn County, WI, Eau Claire County, WI, Pepin County, WI, Pierce County, WI, Polk County, WI, Rusk County, WI, Saint Croix County, WI

The radar

The Minneapolis radar (KMPX), 95 km from the middle of the area, began a volume at 18:18 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 Twin Cities, MN wrote its last area forecast discussion before this dense fog advisory went out at Jan 20, 5:40 PM CST, 18 hours 38 minutes earlier.

Area forecast discussion, Jan 20, 5:40 PM CST, 18 hours 38 minutes before

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Hazardous weather outlook, Jan 20, 2:45 PM CST, 21 hours 33 minutes before

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Nearby

Dense Fog Advisories in Wisconsin, 2017 Dense Fog Advisories in Minnesota, 2017 Every 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.