Alert archive / Wisconsin / Dense Fog Advisories in 2014
Dense Fog Advisory 5, NWS Twin Cities, MN
NWS Twin Cities, MN issued this dense fog advisory at Aug 19, 2014, 4:24 AM CDT for 6 counties in Wisconsin. It was in force for 3 hr.
The area
The counties it named.
The facts
- Issued
- Aug 19, 2014, 4:24 AM CDT (09:24 UTC)
- Expired
- Aug 19, 2014, 7:36 AM CDT
- In force
- 3 hr
- Issued by
- NWS Twin Cities, MN
Counties Barron County, WI, Chippewa County, WI, Dunn County, WI, Eau Claire County, WI, Polk County, WI, Rusk County, WI
The radar
The Minneapolis radar (KMPX), 155 km from the middle of the area, began a volume at 09:28 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 00:00Z, 9.4 hours before the alert went out and 158 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
- 238 J/kg
- Mixed-layer CIN
- -45 J/kg
- Mixed-layer LCL
- 1787 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 100 m²/s²
- 0-3 km storm-relative helicity
- 105 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.2
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 Aug 19, 4:20 AM CDT, 4 minutes earlier.
Area forecast discussion, Aug 19, 4:20 AM CDT, 4 minutes before
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</html>Hazardous weather outlook, Aug 19, 3:49 AM CDT, 35 minutes before
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The site you requested is temporarily down for maintenance or an unexpected outage.
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<p id="message2">
Please try again in a few minutes.
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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 |
|---|---|---|---|---|
| Aug 18, 7:04 PM CDT | Severe Thunderstorm Warning | MPX | Steele, Waseca | 28 min |
| Aug 18, 7:31 PM CDT | Special Weather Statement | MPX | Freeborn | 44 min |
| Aug 18, 7:38 PM CDT | Severe Thunderstorm Warning | MPX | Goodhue | 22 min |
| Aug 18, 7:46 PM CDT | Severe Thunderstorm Warning | MPX | Faribault, Freeborn | 29 min |
| Aug 18, 8:43 PM CDT | Special Weather Statement | MPX | Freeborn | 47 min |
| Aug 18, 9:07 PM CDT | Severe Thunderstorm Warning | MPX | Freeborn | 38 min |
| Aug 18, 8:30 PM CDT | Special Weather Statement | MPX | Chippewa | 60 min |
Nearby
Dense Fog Advisories in Wisconsin, 2014Every dense fog advisory in 2014
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.