Alert archive / Minnesota / Dense Fog Advisories in 2011
Dense Fog Advisory 5, NWS Twin Cities, MN
NWS Twin Cities, MN issued this dense fog advisory at Mar 19, 2011, 2:28 AM CDT for 33 counties in Minnesota. It took effect at Mar 19, 2011, 3:00 AM CDT. It was in force for 7 hr.
The area
The counties it named.
The facts
- Issued
- Mar 19, 2011, 2:28 AM CDT (07:28 UTC)
- In effect from
- Mar 19, 2011, 3:00 AM CDT
- Expired
- Mar 19, 2011, 10:00 AM CDT
- In force
- 7 hr
- Issued by
- NWS Twin Cities, MN
All 33 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, Hennepin County, MN, Kandiyohi County, MN, Le Sueur County, MN, Martin County, MN, McLeod County, MN, Meeker 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
The radar
The Minneapolis radar (KMPX), 58 km from the middle of the area, began a volume at 07:27 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
Aberdeen, SD (KABR), launched 00:00Z, 7.5 hours before the alert went out and 324 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
- 1268 m above ground
- 0-6 km bulk shear
- 66 kt
- 0-1 km storm-relative helicity
- 85 m²/s²
- 0-3 km storm-relative helicity
- 148 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 Mar 19, 1:47 AM CDT, 41 minutes earlier.
Area forecast discussion, Mar 19, 1:47 AM CDT, 41 minutes before
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</html>Hazardous weather outlook, Mar 18, 11:47 AM CDT, 14 hours 41 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 1147 AM CDT FRI MAR 18 2011 MNZ041>045-047>070-073>078-082>085-091>093-WIZ014>016-023>028- 191700- DOUGLAS-TODD-MORRISON-MILLE LACS-KANABEC-STEVENS-POPE-STEARNS- BENTON-SHERBURNE-ISANTI-CHISAGO-LAC QUI PARLE-SWIFT-CHIPPEWA- KANDIYOHI-MEEKER-WRIGHT-HENNEPIN-ANOKA-RAMSEY-WASHINGTON- YELLOW MEDICINE-RENVILLE-MCLEOD-SIBLEY-CARVER-SCOTT-DAKOTA- REDWOOD-BROWN-NICOLLET-LE SUEUR-RICE-GOODHUE-WATONWAN-BLUE EARTH- WASECA-STEELE-MARTIN-FARIBAULT-FREEBORN-POLK-BARRON-RUSK- ST. CROIX-PIERCE-DUNN-PEPIN-EAU CLAIRE- 1147 AM CDT FRI MAR 18 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL MINNESOTA...EAST CENTRAL MINNESOTA...SOUTH CENTRAL MINNESOTA... SOUTHEAST MINNESOTA...SOUTHWEST MINNESOTA...WEST CENTRAL MINNESOTA...NORTHWEST WISCONSIN AND WEST CENTRAL WISCONSIN. .DAY ONE...THIS AFTERNOON AND TONIGHT SMALLER STREAMS AND RIVERS WILL CONTINUE TO RISE TODAY...MOSTLY IN SOUTHERN MINNESOTA. ICE JAMS WILL ALSO BECOME AN INCREASING THREAT. PLEASE SEE THE LATEST HYDROLOGICAL STATEMENTS FOR MORE INFORMATION. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY THE SNOW MELT WILL ACCELERATE SATURDAY AND SUNDAY AS WARMER AIR AND RAIN MOVE INTO THE REGION. IN ADDITION...THERE IS A CHANCE FOR THUNDERSTORMS ACROSS SOUTHEAST MINNESOTA AND ADJOINING AREAS OF WISCONSIN SUNDAY AFTERNOON AND SUNDAY NIGHT. STREAMS AND RIVERS WILL CONTINUE TO RISE...ICE JAMS WILL ALSO CONTINUE TO BE A THREAT. PLEASE SEE THE LATEST HYDROLOGICAL STATEMENT FOR MORE INFORMATION. A SYSTEM IS EXPECTED TO ARRIVE TUESDAY MORNING AND LINGER INTO EARLY WEDNESDAY. THIS SYSTEM WILL SPREAD PRECIPITATION ACROSS MINNESOTA AND WISCONSIN IN THE FORM OF RAIN AND SNOW. AT THIS TIME...MORE RAIN AND LESS SNOW IS EXPECTED IN FAR SOUTHERN MINNESOTA. THE HIGHEST SNOW TOTALS LOOK TO FALL IN PORTIONS OF CENTRAL MINNESOTA AND NORTHWEST WISCONSIN WHERE SEVERAL INCHES OF ACCUMULATION ARE POSSIBLE. .SPOTTER INFORMATION STATEMENT... SKYWARN SPOTTER ACTIVATION WILL NOT BE NEEDED.
The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 19, 12:53 PM CDT | River Flood Warning | MPX | Dakota, Washington | 34 days |
| Mar 19, 1:10 PM CDT | River Flood Watch | MPX | Eau Claire | 23 hr |
Nearby
Dense Fog Advisories in Minnesota, 2011Every dense fog advisory in 2011
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.