Alert archive / Minnesota / Winter Weather Advisories in 2009
Winter Weather Advisory 6, NWS Twin Cities, MN
NWS Twin Cities, MN issued this winter weather advisory at Mar 7, 2009, 2:12 PM CST for 9 counties in Minnesota; Eau Claire County, Pepin County, Pierce County, Wisconsin. It took effect at Mar 8, 2009, 7:00 AM CDT. It was in force for 8 hr.
The area
The counties it named.
The facts
- Issued
- Mar 7, 2009, 2:12 PM CST (20:12 UTC)
- In effect from
- Mar 8, 2009, 7:00 AM CDT
- Expired
- Mar 8, 2009, 2:35 PM CDT
- In force
- 8 hr
- Issued by
- NWS Twin Cities, MN
Counties Blue Earth County, MN, Faribault County, MN, Freeborn County, MN, Goodhue County, MN, Martin County, MN, Rice County, MN, Steele County, MN, Waseca County, MN, Watonwan County, MN, Eau Claire County, WI, Pepin County, WI, Pierce County, WI
The radar
The Minneapolis radar (KMPX), 81 km from the middle of the area, began a volume at 20:11 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
Davenport, (KDVN), launched 12:00Z, 8.2 hours before the alert went out and 360 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
- 726 m above ground
- 0-6 km bulk shear
- 77 kt
- 0-1 km storm-relative helicity
- -30 m²/s²
- 0-3 km storm-relative helicity
- 469 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this winter weather 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 winter weather advisory went out at Mar 7, 11:40 AM CST, 2 hours 32 minutes earlier.
Area forecast discussion, Mar 7, 11:40 AM CST, 2 hours 32 minutes before
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</html>Hazardous weather outlook, Mar 7, 12:16 PM CST, 1 hour 56 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 1216 PM CST SAT MAR 7 2009 MNZ041>045-047>070-073>078-082>085-091>093-WIZ014>016-023>028- 081200- 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- 1216 PM CST SAT MAR 7 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL AND SOUTHERN MINNESOTA...AND WEST CENTRAL WISCONSIN. .DAY ONE...THIS AFTERNOON AND TONIGHT NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY A STORM SYSTEM WILL DEVELOP ACROSS THE CENTRAL PLAINS ON SATURDAY...AND MOVE NORTHEAST ACROSS THE MIDWEST BY LATE SUNDAY. CURRENT INDICATIONS ARE THAT SNOWFALL AMOUNTS OF TWO TO FIVE INCHES WILL LIKELY FALL ACROSS PORTIONS OF SOUTHERN MINNESOTA INTO WEST CENTRAL WISCONSIN BEFORE IT ENDS SUNDAY EVENING. ANOTHER STRONG STORM WILL AFFECT THE REGION LATER MONDAY NIGHT...LASTING INTO TUESDAY EVENING. THIS STORM HAS THE POTENTIAL OF GENERATING SIGNIFICANT ACCUMULATIONS OF HEAVY...WET SNOW ACROSS A GOOD PART OF THE FORECAST AREA. IF TRAVEL IS PLANNED TUESDAY...MONITOR FUTURE FORECASTS FOR UPDATES ON THIS DEVELOPING WINTER STORM. .SPOTTER INFORMATION STATEMENT... SKYWARN SPOTTER ACTIVATION WILL NOT BE NEEDED.
Nearby
Winter Weather Advisories in Minnesota, 2009Winter Weather Advisories in Wisconsin, 2009Every winter weather advisory in 2009
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.