Alert archive / Iowa / Dense Fog Advisories in 2012

Dense Fog Advisory 13, NWS Sioux Falls, SD

December 1, 20129 counties in Iowa; 5 counties in Minnesota

NWS Sioux Falls, SD issued this dense fog advisory at Dec 1, 2012, 8:49 PM CST for 9 counties in Iowa; 5 counties in Minnesota. It was in force for 7 hr.

The area

The counties it named.

The facts

Issued: Dec 1, 2012, 8:49 PM CST (02:49 UTC)
Expired: Dec 2, 2012, 3:24 AM CST
In force: 7 hr
Issued by: NWS Sioux Falls, SD

Counties Buena Vista County, IA, Cherokee County, IA, Clay County, IA, Dickinson County, IA, Ida County, IA, O'Brien County, IA, Osceola County, IA, Plymouth County, IA, Woodbury County, IA, Cottonwood County, MN, Jackson County, MN, Lyon County, MN, Murray County, MN, Nobles County, MN

The radar

The Sioux Falls radar (KFSD), 101 km from the middle of the area, began a volume at 02:53 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 Sioux Falls, SD wrote its last area forecast discussion before this dense fog advisory went out at Dec 1, 3:58 PM CST, 4 hours 51 minutes earlier.

Area forecast discussion, Dec 1, 3:58 PM CST, 4 hours 51 minutes before

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Hazardous weather outlook, Dec 1, 4:05 AM CST, 16 hours 44 minutes before

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        The site you requested is temporarily down for maintenance or an unexpected outage.
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Nearby

Dense Fog Advisories in Iowa, 2012 Dense Fog Advisories in Minnesota, 2012 Every dense fog advisory in 2012

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.