Alert archive / Minnesota / Dense Fog Advisories in 2020

Dense Fog Advisory 4, NWS Twin Cities, MN

May 24, 202021 counties in Minnesota; Pierce County, Polk County, Saint Croix County, Wisconsin

NWS Twin Cities, MN issued this dense fog advisory at May 24, 2020, 1:54 AM CDT for 21 counties in Minnesota; Pierce County, Polk County, Saint Croix County, Wisconsin. It was in force for 7 hr.

The area

The counties it named.

The facts

Issued: May 24, 2020, 1:54 AM CDT (06:54 UTC)
Expired: May 24, 2020, 8:39 AM CDT
In force: 7 hr
Issued by: NWS Twin Cities, MN

All 24 counties

Anoka County, MN, Benton County, MN, Blue Earth County, MN, Chisago County, MN, Dakota County, MN, Faribault County, MN, Freeborn County, MN, Goodhue County, MN, Isanti County, MN, Kanabec County, MN, Le Sueur County, MN, Mille Lacs County, MN, Morrison County, MN, Rice County, MN, Scott County, MN, Sherburne County, MN, Stearns County, MN, Steele County, MN, Todd County, MN, Waseca County, MN, Washington County, MN, Pierce County, WI, Polk County, WI, Saint Croix County, WI

The radar

The Minneapolis radar (KMPX), 16 km from the middle of the area, began a volume at 06:54 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 Twin Cities, MN wrote its last area forecast discussion before this dense fog advisory went out at May 23, 11:14 PM CDT, 2 hours 40 minutes earlier.

Area forecast discussion, May 23, 11:14 PM CDT, 2 hours 40 minutes before

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Hazardous weather outlook, May 23, 10:45 PM CDT, 3 hours 9 minutes before

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Nearby

Dense Fog Advisories in Minnesota, 2020 Dense Fog Advisories in Wisconsin, 2020 Every dense fog advisory in 2020

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.