Alert archive / Minnesota / Dense Fog Advisories in 2017
Dense Fog Advisory 3, NWS Twin Cities, MN
NWS Twin Cities, MN issued this dense fog advisory at Jan 20, 2017, 2:51 PM CST for 35 counties in Minnesota. It was in force for 45 hr.
The area
The counties it named.
The facts
- Issued
- Jan 20, 2017, 2:51 PM CST (20:51 UTC)
- Expired
- Jan 22, 2017, 12:00 PM CST
- In force
- 45 hr
- Issued by
- NWS Twin Cities, MN
All 35 counties
Benton County, MN, Blue Earth County, MN, Brown County, MN, Carver County, MN, Chippewa County, MN, Dakota County, MN, Douglas County, MN, Faribault County, MN, Freeborn County, MN, Goodhue County, MN, Kandiyohi County, MN, Lac qui Parle County, MN, Le Sueur County, MN, Martin County, MN, McLeod County, MN, Meeker County, MN, Mille Lacs County, MN, Morrison County, MN, Nicollet County, MN, Pope County, MN, Redwood County, MN, Renville County, MN, Rice County, MN, Scott County, MN, Sherburne County, MN, Sibley County, MN, Stearns County, MN, Steele County, MN, Stevens County, MN, Swift County, MN, Todd County, MN, Waseca County, MN, Watonwan County, MN, Wright County, MN, Yellow Medicine County, MN
The radar
The Minneapolis radar (KMPX), 66 km from the middle of the area, began a volume at 20:53 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.
The nearest sounding before it
Minneapolis, MN (KMPX), launched 12:00Z, 8.9 hours before the alert went out and 63 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 518 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 26 m²/s²
- 0-3 km storm-relative helicity
- 50 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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, 12:04 PM CST, 2 hours 47 minutes earlier.
Area forecast discussion, Jan 20, 12:04 PM CST, 2 hours 47 minutes before
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</html>Hazardous weather outlook, Jan 20, 2:45 PM CST, 6 minutes before
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Special weather statement, Jan 20, 9:30 AM CST, 5 hours 21 minutes before
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</html>The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 19, 6:55 PM CST | Dense Fog Advisory | MPX | Blue Earth, Brown, Chippewa, Douglas, Faribault, Freeborn and 17 more | 11 hr |
| Jan 20, 9:14 AM CST | Freezing Rain Advisory | MPX | Anoka, Benton, Chisago, Douglas, Isanti, Kanabec and 6 more | 3 hr |
Nearby
Dense Fog Advisories in Minnesota, 2017Every 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.