Alert archive / Minnesota / Winter Weather Advisories in 2009
Winter Weather Advisory 13, NWS Twin Cities, MN
NWS Twin Cities, MN issued this winter weather advisory at Dec 13, 2009, 3:19 AM CST for 42 counties in Minnesota; 9 counties in Wisconsin. It took effect at Dec 13, 2009, 6:00 PM CST. It was in force for 15 hr.
The area
The counties it named.
The facts
- Issued
- Dec 13, 2009, 3:19 AM CST (09:19 UTC)
- In effect from
- Dec 13, 2009, 6:00 PM CST
- Expired
- Dec 14, 2009, 9:00 AM CST
- In force
- 15 hr
- Issued by
- NWS Twin Cities, MN
All 51 counties
Anoka County, MN, Benton County, MN, Blue Earth County, MN, Brown County, MN, Carver County, MN, Chippewa County, MN, Chisago County, MN, Dakota County, MN, Douglas County, MN, Faribault County, MN, Freeborn County, MN, Goodhue County, MN, Hennepin County, MN, Isanti County, MN, Kanabec 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, Ramsey 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, Washington County, MN, Watonwan County, MN, Wright County, MN, Yellow Medicine County, MN, Barron County, WI, Chippewa County, WI, Dunn County, WI, Eau Claire County, WI, Pepin County, WI, Pierce County, WI, Polk County, WI, Rusk County, WI, Saint Croix County, WI
The radar
The Minneapolis radar (KMPX), 20 km from the middle of the area, began a volume at 09:24 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, 9.3 hours before the alert went out and 17 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
- 825 m above ground
- 0-6 km bulk shear
- 50 kt
- 0-1 km storm-relative helicity
- 351 m²/s²
- 0-3 km storm-relative helicity
- 379 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WWUS43 KMPX 130919 WSWMPX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 319 AM CST SUN DEC 13 2009 ...ACCUMULATING SNOWFALL TO IMPACT THE MONDAY MORNING COMMUTE... .A WINTER WEATHER ADVISORY FOR SNOW HAS BEEN ISSUED FOR PARTS OF CENTRAL AND SOUTH CENTRAL MINNESOTA AND WEST CENTRAL WISCONSIN FOR SUNDAY NIGHT INTO MONDAY MORNING. SNOW IS EXPECTED TO BEGIN ACROSS WEST AND SOUTH CENTRAL MINNESOTA THIS EVENING...AND SPREAD EASTWARD ACROSS CENTRAL MINNESOTA AND WEST CENTRAL WISCONSIN OVERNIGHT AND EARLY MONDAY MORNING. TOTAL SNOWFALL AMOUNTS OF 2 TO 4 INCHES ARE EXPECTED BY MID MORNING MONDAY. WHILE THE EXPECTED ACCUMULATIONS ARE NOT SIGNIFICANT...THE BULK OF THE SNOW WILL FALL QUICKLY BETWEEN MIDNIGHT SUNDAY NIGHT AND 9 AM CST MONDAY...AND LIKELY COMPLICATE THE MONDAY MORNING COMMUTE. MONDAY MORNING COMMUTERS SHOULD BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. MNZ041-042-047>049-054>058-064>067-073>075-082-083-091-092-131730- /O.NEW.KMPX.WW.Y.0013.091214T0000Z-091214T1200Z/ DOUGLAS-TODD-STEVENS-POPE-STEARNS-LAC QUI PARLE-SWIFT-CHIPPEWA- KANDIYOHI-MEEKER-YELLOW MEDICINE-RENVILLE-MCLEOD-SIBLEY-REDWOOD- BROWN-NICOLLET-WATONWAN-BLUE EARTH-MARTIN-FARIBAULT- INCLUDING THE CITIES OF...ALEXANDRIA...LONG PRAIRIE...MORRIS... GLENWOOD...ST. CLOUD...MADISON...BENSON...MONTEVIDEO...WILLMAR... LITCHFIELD...GRANITE FALLS...OLIVIA...HUTCHINSON...GAYLORD... REDWOOD FALLS...NEW ULM...ST. PETER...ST. JAMES...MANKATO... FAIRMONT...BLUE EARTH 319 AM CST SUN DEC 13 2009 ...WINTER WEATHER ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO 6 AM CST MONDAY... THE NATIONAL WEATHER SERVICE IN TWIN CITIES/CHANHASSEN HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT FROM 6 PM THIS EVENING TO 6 AM CST MONDAY. * SNOW IS EXPECTED TO BEGIN ACROSS WEST AND SOUTH CENTRAL MINNESOTA SUNDAY EVENING...AND SPREAD EASTWARD ACROSS CENTRAL MINNESOTA OVERNIGHT INTO MONDAY MORNING. * TOTAL SNOWFALL AMOUNTS OF 2 TO 4 INCHES ARE EXPECTED TO COMPLICATE THE MONDAY MORNING COMMUTE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ MNZ043>045-050>053-059>063-068>070-076>078-084-085-093-WIZ014>016- 023>028-131730- /O.NEW.KMPX.WW.Y.0013.091214T0300Z-091214T1500Z/ MORRISON-MILLE LACS-KANABEC-BENTON-SHERBURNE-ISANTI-CHISAGO- WRIGHT-HENNEPIN-ANOKA-RAMSEY-WASHINGTON-CARVER-SCOTT-DAKOTA- LE SUEUR-RICE-GOODHUE-WASECA-STEELE-FREEBORN-POLK-BARRON-RUSK- ST. CROIX-PIERCE-DUNN-PEPIN-CHIPPEWA-EAU CLAIRE- INCLUDING THE CITIES OF...LITTLE FALLS...PRINCETON...MORA... FOLEY...ELK RIVER...CAMBRIDGE...CENTER CITY...MONTICELLO... MINNEAPOLIS...BLAINE...ST. PAUL...STILLWATER...CHASKA... SHAKOPEE...BURNSVILLE...LE SUEUR...FARIBAULT...RED WING... WASECA...OWATONNA...ALBERT LEA...AMERY...BALSAM LAKE... RICE LAKE...BARRON...LADYSMITH...HUDSON...NEW RICHMOND... RIVER FALLS...PRESCOTT...MENOMONIE...BOYCEVILLE...DURAND... PEPIN...CHIPPEWA FALLS...BLOOMER...EAU CLAIRE...ALTOONA 319 AM CST SUN DEC 13 2009 ...WINTER WEATHER ADVISORY IN EFFECT FROM 9 PM THIS EVENING TO 9 AM CST MONDAY... THE NATIONAL WEATHER SERVICE IN TWIN CITIES/CHANHASSEN HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT FROM 9 PM THIS EVENING TO 9 AM CST MONDAY. * SNOW IS EXPECTED TO OVERSPREAD CENTRAL AND SOUTH CENTRAL MINNESOTA AND WEST CENTRAL WISCONSIN SUNDAY NIGHT INTO MONDAY MORNING. * TOTAL SNOWFALL AMOUNTS OF 2 TO 4 INCHES ARE EXPECTED TO COMPLICATE THE MONDAY MORNING COMMUTE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$
6 follow-up statements
000 WWUS43 KMPX 131649 WSWMPX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 1049 AM CST SUN DEC 13 2009 ...ACCUMULATING SNOWFALL TO IMPACT THE MONDAY MORNING COMMUTE... .A WINTER WEATHER ADVISORY FOR SNOW REMAINS IN EFFECT FOR PARTS OF CENTRAL AND SOUTH CENTRAL MINNESOTA AND WEST CENTRAL WISCONSIN FOR TONIGHT INTO MONDAY MORNING. SNOW IS EXPECTED TO BEGIN ACROSS WEST AND SOUTH CENTRAL MINNESOTA THIS EVENING...AND SPREAD EASTWARD ACROSS CENTRAL MINNESOTA AND WEST CENTRAL WISCONSIN OVERNIGHT AND EARLY MONDAY MORNING. TOTAL SNOWFALL AMOUNTS OF 2 TO 4 INCHES ARE EXPECTED BY MID MORNING MONDAY. THE HEAVIER SNOW TOTALS WILL LIKELY FALL OVER EAST CENTRAL MINNESOTA INTO WEST CENTRAL WISCONSIN. THE BULK OF THE SNOW IS EXPECTED TO FALL QUICKLY BETWEEN MIDNIGHT TONIGHT AND 9 AM CST MONDAY...AND LIKELY COMPLICATE THE MONDAY MORNING COMMUTE. MONDAY MORNING COMMUTERS SHOULD BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. MNZ041-042-047>049-054>058-064>067-073>075-082-083-091-092-140100- /O.CON.KMPX.WW.Y.0013.091214T0000Z-091214T1200Z/ DOUGLAS-TODD-STEVENS-POPE-STEARNS-LAC QUI PARLE-SWIFT-CHIPPEWA- KANDIYOHI-MEEKER-YELLOW MEDICINE-RENVILLE-MCLEOD-SIBLEY-REDWOOD- BROWN-NICOLLET-WATONWAN-BLUE EARTH-MARTIN-FARIBAULT- INCLUDING THE CITIES OF...ALEXANDRIA...LONG PRAIRIE...MORRIS... GLENWOOD...ST. CLOUD...MADISON...BENSON...MONTEVIDEO...WILLMAR... LITCHFIELD...GRANITE FALLS...OLIVIA...HUTCHINSON...GAYLORD... REDWOOD FALLS...NEW ULM...ST. PETER...ST. JAMES...MANKATO... FAIRMONT...BLUE EARTH 1049 AM CST SUN DEC 13 2009 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 6 AM CST MONDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 6 AM CST MONDAY. * SNOW IS EXPECTED TO BEGIN ACROSS WEST AND SOUTH CENTRAL MINNESOTA THIS EVENING...AND SPREAD EASTWARD ACROSS CENTRAL MINNESOTA OVERNIGHT INTO MONDAY MORNING. * TOTAL SNOWFALL AMOUNTS OF 2 TO 4 INCHES ARE EXPECTED TO COMPLICATE THE MONDAY MORNING COMMUTE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ MNZ043>045-050>053-059>063-068>070-076>078-084-085-093-WIZ014>016- 023>028-140100- /O.CON.KMPX.WW.Y.0013.091214T0300Z-091214T1500Z/ MORRISON-MILLE LACS-KANABEC-BENTON-SHERBURNE-ISANTI-CHISAGO- WRIGHT-HENNEPIN-ANOKA-RAMSEY-WASHINGTON-CARVER-SCOTT-DAKOTA- LE SUEUR-RICE-GOODHUE-WASECA-STEELE-FREEBORN-POLK-BARRON-RUSK- ST. CROIX-PIERCE-DUNN-PEPIN-CHIPPEWA-EAU CLAIRE- INCLUDING THE CITIES OF...LITTLE FALLS...PRINCETON...MORA... FOLEY...ELK RIVER...CAMBRIDGE...CENTER CITY...MONTICELLO... MINNEAPOLIS...BLAINE...ST. PAUL...STILLWATER...CHASKA... SHAKOPEE...BURNSVILLE...LE SUEUR...FARIBAULT...RED WING... WASECA...OWATONNA...ALBERT LEA...AMERY...BALSAM LAKE... RICE LAKE...BARRON...LADYSMITH...HUDSON...NEW RICHMOND... RIVER FALLS...PRESCOTT...MENOMONIE...BOYCEVILLE...DURAND... PEPIN...CHIPPEWA FALLS...BLOOMER...EAU CLAIRE...ALTOONA 1049 AM CST SUN DEC 13 2009 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 9 PM THIS EVENING TO 9 AM CST MONDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 9 PM THIS EVENING TO 9 AM CST MONDAY. * SNOW IS EXPECTED TO OVERSPREAD CENTRAL MINNESOTA THIS EVENING AND INTO WEST CENTRAL WISCONSIN AROUND MIDNIGHT...LASTING INTO MONDAY MORNING. * TOTAL SNOWFALL AMOUNTS OF 2 TO 4 INCHES ARE EXPECTED TO COMPLICATE THE MONDAY MORNING COMMUTE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$
000 WWUS43 KMPX 132140 WSWMPX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 340 PM CST SUN DEC 13 2009 ...ACCUMULATING SNOWFALL OVERNIGHT TO IMPACT THE MONDAY MORNING COMMUTE... .A WINTER WEATHER ADVISORY FOR SNOW REMAINS IN EFFECT FOR PARTS OF CENTRAL AND SOUTH CENTRAL MINNESOTA AND WEST CENTRAL WISCONSIN FOR TONIGHT INTO MONDAY MORNING. SNOW WILL BEGIN ACROSS WESTERN MINNESOTA THIS EVENING...AND SPREAD EASTWARD ACROSS EASTERN MINNESOTA AND WEST CENTRAL WISCONSIN OVERNIGHT AND EARLY MONDAY MORNING. TOTAL SNOWFALL AMOUNTS OF 2 TO 5 INCHES...WITH LOCALLY HIGHER AMOUNTS POSSIBLE ACROSS THE SOUTHERN SUBURBS OF THE TWIN CITIES...TO RIVER FALLS...MENOMONIE AND LADYSMITH WISCONSIN THROUGH MID MORNING MONDAY. THE BULK OF THE SNOW IS EXPECTED TO FALL QUICKLY BETWEEN MIDNIGHT AND 9 AM MONDAY...AND LIKELY COMPLICATE THE MONDAY MORNING COMMUTE. MONDAY MORNING COMMUTERS SHOULD BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. MNZ041-042-047>049-054>058-064>067-073>075-082-083-091-092-140545- /O.CON.KMPX.WW.Y.0013.091214T0000Z-091214T1200Z/ DOUGLAS-TODD-STEVENS-POPE-STEARNS-LAC QUI PARLE-SWIFT-CHIPPEWA- KANDIYOHI-MEEKER-YELLOW MEDICINE-RENVILLE-MCLEOD-SIBLEY-REDWOOD- BROWN-NICOLLET-WATONWAN-BLUE EARTH-MARTIN-FARIBAULT- INCLUDING THE CITIES OF...ALEXANDRIA...LONG PRAIRIE...MORRIS... GLENWOOD...ST. CLOUD...MADISON...BENSON...MONTEVIDEO...WILLMAR... LITCHFIELD...GRANITE FALLS...OLIVIA...HUTCHINSON...GAYLORD... REDWOOD FALLS...NEW ULM...ST. PETER...ST. JAMES...MANKATO... FAIRMONT...BLUE EARTH 340 PM CST SUN DEC 13 2009 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM CST MONDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM CST MONDAY. * SNOW WILL BEGIN ACROSS WEST CENTRAL MINNESOTA EARLY THIS EVENING...AND SPREAD EASTWARD ACROSS EASTERN MINNESOTA OVERNIGHT INTO MONDAY MORNING. * TOTAL SNOWFALL AMOUNTS OF 2 TO 4 INCHES ARE EXPECTED TO COMPLICATE THE MONDAY MORNING COMMUTE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ MNZ043>045-050>053-059>063-068>070-076>078-084-085-093-WIZ014>016- 023>028-140545- /O.CON.KMPX.WW.Y.0013.091214T0300Z-091214T1500Z/ MORRISON-MILLE LACS-KANABEC-BENTON-SHERBURNE-ISANTI-CHISAGO- WRIGHT-HENNEPIN-ANOKA-RAMSEY-WASHINGTON-CARVER-SCOTT-DAKOTA- LE SUEUR-RICE-GOODHUE-WASECA-STEELE-FREEBORN-POLK-BARRON-RUSK- ST. CROIX-PIERCE-DUNN-PEPIN-CHIPPEWA-EAU CLAIRE- INCLUDING THE CITIES OF...LITTLE FALLS...PRINCETON...MORA... FOLEY...ELK RIVER...CAMBRIDGE...CENTER CITY...MONTICELLO... MINNEAPOLIS...BLAINE...ST. PAUL...STILLWATER...CHASKA... SHAKOPEE...BURNSVILLE...LE SUEUR...FARIBAULT...RED WING... WASECA...OWATONNA...ALBERT LEA...AMERY...BALSAM LAKE... RICE LAKE...BARRON...LADYSMITH...HUDSON...NEW RICHMOND... RIVER FALLS...PRESCOTT...MENOMONIE...BOYCEVILLE...DURAND... PEPIN...CHIPPEWA FALLS...BLOOMER...EAU CLAIRE...ALTOONA 340 PM CST SUN DEC 13 2009 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 9 PM THIS EVENING TO 9 AM CST MONDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 9 PM THIS EVENING TO 9 AM CST MONDAY. * SNOW WILL OVERSPREAD EASTERN MINNESOTA THIS LATE THIS EVENING AND INTO WEST CENTRAL WISCONSIN AROUND MIDNIGHT...LASTING INTO MONDAY MORNING. * TOTAL SNOWFALL AMOUNTS OF 2 TO 5 INCHES ARE EXPECTED TO COMPLICATE THE MONDAY MORNING COMMUTE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ JLT/RAH
000 WWUS43 KMPX 140408 WSWMPX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 1008 PM CST SUN DEC 13 2009 ...ACCUMULATING SNOWFALL OVERNIGHT TO IMPACT THE MONDAY MORNING COMMUTE... .A WINTER WEATHER ADVISORY REMAINS IN EFFECT OVERNIGHT AND MONDAY MORNING FOR CENTRAL AND SOUTH CENTRAL MINNESOTA AND WEST CENTRAL WISCONSIN. SNOW ACROSS CENTRAL MINNESOTA WILL SPREAD EAST AND SOUTH OVERNIGHT INTO SOUTHERN AND EASTERN AREAS OF MINNESOTA AS WELL AS WEST CENTRAL WISCONSIN. SNOWFALL ACCUMULATION AROUND 2 INCHES IS EXPECTED BY DAYBREAK ACROSS THE ADVISORY AREA. THE SNOW WILL CONTINUE FOR A TIME MONDAY MORNING ACROSS EAST CENTRAL MINNESOTA...INCLUDING THE TWIN CITIES METROPOLITAN AREA...AS WELL AS WEST CENTRAL WISCONSIN...WITH AN ADDITIONAL INCH OR TWO OF ACCUMULATION POSSIBLE. MONDAY MORNING COMMUTERS SHOULD BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. MNZ041-042-047>049-054>058-064>067-073>075-082-083-091-092-141200- /O.CON.KMPX.WW.Y.0013.000000T0000Z-091214T1200Z/ DOUGLAS-TODD-STEVENS-POPE-STEARNS-LAC QUI PARLE-SWIFT-CHIPPEWA- KANDIYOHI-MEEKER-YELLOW MEDICINE-RENVILLE-MCLEOD-SIBLEY-REDWOOD- BROWN-NICOLLET-WATONWAN-BLUE EARTH-MARTIN-FARIBAULT- INCLUDING THE CITIES OF...ALEXANDRIA...LONG PRAIRIE...MORRIS... GLENWOOD...ST. CLOUD...MADISON...BENSON...MONTEVIDEO...WILLMAR... LITCHFIELD...GRANITE FALLS...OLIVIA...HUTCHINSON...GAYLORD... REDWOOD FALLS...NEW ULM...ST. PETER...ST. JAMES...MANKATO... FAIRMONT...BLUE EARTH 1008 PM CST SUN DEC 13 2009 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM CST MONDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM CST MONDAY. * SNOW ACROSS WEST CENTRAL MINNESOTA WILL SPREAD INTO SOUTH CENTRAL MINNESOTA OVERNIGHT. THE SNOW WILL THEN END EARLY MONDAY MORNING. * TOTAL SNOWFALL AMOUNTS OF 2 TO 3 INCHES ARE EXPECTED TO COMPLICATE THE MONDAY MORNING COMMUTE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ MNZ043>045-050>053-059>063-068>070-076>078-084-085-093-WIZ014>016- 023>028-141215- /O.CON.KMPX.WW.Y.0013.000000T0000Z-091214T1500Z/ MORRISON-MILLE LACS-KANABEC-BENTON-SHERBURNE-ISANTI-CHISAGO- WRIGHT-HENNEPIN-ANOKA-RAMSEY-WASHINGTON-CARVER-SCOTT-DAKOTA- LE SUEUR-RICE-GOODHUE-WASECA-STEELE-FREEBORN-POLK-BARRON-RUSK- ST. CROIX-PIERCE-DUNN-PEPIN-CHIPPEWA-EAU CLAIRE- INCLUDING THE CITIES OF...LITTLE FALLS...PRINCETON...MORA... FOLEY...ELK RIVER...CAMBRIDGE...CENTER CITY...MONTICELLO... MINNEAPOLIS...BLAINE...ST. PAUL...STILLWATER...CHASKA... SHAKOPEE...BURNSVILLE...LE SUEUR...FARIBAULT...RED WING... WASECA...OWATONNA...ALBERT LEA...AMERY...BALSAM LAKE... RICE LAKE...BARRON...LADYSMITH...HUDSON...NEW RICHMOND... RIVER FALLS...PRESCOTT...MENOMONIE...BOYCEVILLE...DURAND... PEPIN...CHIPPEWA FALLS...BLOOMER...EAU CLAIRE...ALTOONA 1008 PM CST SUN DEC 13 2009 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 9 AM CST MONDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 9 AM CST MONDAY. * SNOW ACROSS CENTRAL MINNESOTA WILL SPREAD INTO EAST CENTRAL AND SOUTHEAST AREAS OF MINNESOTA AND WEST CENTRAL AREAS OF WISCONSIN OVERNIGHT. THE SNOW WILL PERSIST INTO MONDAY MORNING. * TOTAL SNOWFALL AMOUNTS OF 2 TO 4 INCHES ARE EXPECTED TO COMPLICATE THE MONDAY MORNING COMMUTE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ RAH
000 WWUS43 KMPX 140837 WSWMPX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 237 AM CST MON DEC 14 2009 ...ACCUMULATING SNOWFALL OVERNIGHT TO IMPACT THE MONDAY MORNING COMMUTE... .A WINTER WEATHER ADVISORY REMAINS IN EFFECT EARLY THIS MORNING FOR CENTRAL AND SOUTH CENTRAL MINNESOTA AND WEST CENTRAL WISCONSIN. SNOW ACROSS CENTRAL MINNESOTA WILL CONTINUE SPREADING EAST INTO WEST CENTRAL WISCONSIN EARLY THIS MORNING. ADDITIONAL DEVELOPMENT IS EXPECTED ACROSS SOUTH CENTRAL MINNESOTA BY DAYBREAK. SNOWFALL ACCUMULATIONS OF 1 TO 2 INCHES HAVE BEEN OBSERVED ACROSS PARTS OF CENTRAL MINNESOTA AND WEST CENTRAL WISCONSIN PRIOR TO 2 AM CST...GENERALLY ALONG AND NORTH OF AN OLIVIA...TO GLENCOE...TO NEW RICHMOND WISCONSIN LINE. AN ADDITIONAL ONE HALF TO ONE INCH OF ACCUMULATION IS EXPECTED IN THESE AREAS PRIOR TO DAYBREAK MONDAY...FOR TOTAL ACCUMULATIONS IN THE 2 TO 3 INCH RANGE ON AVERAGE. A FEW TOTALS AROUND 4 INCHES ARE STILL POSSIBLE IN WEST CENTRAL WISCONSIN...GENERALLY FROM NEW RICHMOND TO LADYSMITH AND POINTS NORTHWARD. ANOTHER BATCH OF SNOW IS EXPECTED TO BLOSSOM FROM SOUTH CENTRAL MINNESOTA TOWARD EAU CLAIRE WISCONSIN BY DAYBREAK...WHERE 1 TO 3 INCHES OF SNOW ARE EXPECTED PRIOR TO 9 AM CST. MONDAY MORNING COMMUTERS SHOULD BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. MNZ041-042-047>049-054>058-064>067-073>075-082-083-091-092-141200- /O.CON.KMPX.WW.Y.0013.000000T0000Z-091214T1200Z/ DOUGLAS-TODD-STEVENS-POPE-STEARNS-LAC QUI PARLE-SWIFT-CHIPPEWA- KANDIYOHI-MEEKER-YELLOW MEDICINE-RENVILLE-MCLEOD-SIBLEY-REDWOOD- BROWN-NICOLLET-WATONWAN-BLUE EARTH-MARTIN-FARIBAULT- INCLUDING THE CITIES OF...ALEXANDRIA...LONG PRAIRIE...MORRIS... GLENWOOD...ST. CLOUD...MADISON...BENSON...MONTEVIDEO...WILLMAR... LITCHFIELD...GRANITE FALLS...OLIVIA...HUTCHINSON...GAYLORD... REDWOOD FALLS...NEW ULM...ST. PETER...ST. JAMES...MANKATO... FAIRMONT...BLUE EARTH 237 AM CST MON DEC 14 2009 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM CST EARLY THIS MORNING... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM CST EARLY THIS MORNING. * SNOW ACROSS CENTRAL MINNESOTA WILL CONTINUE EARLY THIS MORNING. ADDITIONAL DEVELOPMENT IS EXPECTED ACROSS SOUTH CENTRAL MINNESOTA BY DAYBREAK. * TOTAL SNOWFALL AMOUNTS OF 2 TO 3 INCHES ARE EXPECTED TO COMPLICATE THIS MORNINGS COMMUTE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ MNZ043>045-050>053-059>063-068>070-076>078-084-085-093-WIZ014>016- 023>028-141500- /O.CON.KMPX.WW.Y.0013.000000T0000Z-091214T1500Z/ MORRISON-MILLE LACS-KANABEC-BENTON-SHERBURNE-ISANTI-CHISAGO- WRIGHT-HENNEPIN-ANOKA-RAMSEY-WASHINGTON-CARVER-SCOTT-DAKOTA- LE SUEUR-RICE-GOODHUE-WASECA-STEELE-FREEBORN-POLK-BARRON-RUSK- ST. CROIX-PIERCE-DUNN-PEPIN-CHIPPEWA-EAU CLAIRE- INCLUDING THE CITIES OF...LITTLE FALLS...PRINCETON...MORA... FOLEY...ELK RIVER...CAMBRIDGE...CENTER CITY...MONTICELLO... MINNEAPOLIS...BLAINE...ST. PAUL...STILLWATER...CHASKA... SHAKOPEE...BURNSVILLE...LE SUEUR...FARIBAULT...RED WING... WASECA...OWATONNA...ALBERT LEA...AMERY...BALSAM LAKE... RICE LAKE...BARRON...LADYSMITH...HUDSON...NEW RICHMOND... RIVER FALLS...PRESCOTT...MENOMONIE...BOYCEVILLE...DURAND... PEPIN...CHIPPEWA FALLS...BLOOMER...EAU CLAIRE...ALTOONA 237 AM CST MON DEC 14 2009 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 9 AM CST THIS MORNING... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 9 AM CST THIS MORNING. * SNOW ACROSS CENTRAL MINNESOTA WILL CONTINUE SPREADING EAST INTO WEST CENTRAL WISCONSIN EARLY THIS MORNING. ADDITIONAL DEVELOPMENT IS EXPECTED FROM SOUTH CENTRAL MINNESOTA TOWARD EAU CLAIRE WISCONSIN BY DAYBREAK. * TOTAL SNOWFALL AMOUNTS OF 1 TO 3 INCHES ARE EXPECTED TO COMPLICATE THIS MORNINGS COMMUTE. A FEW TOTALS AROUND 4 INCHES ARE STILL POSSIBLE IN WEST CENTRAL WISCONSIN...GENERALLY FROM NEW RICHMOND TO LADYSMITH AND POINTS NORTHWARD. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$
000 WWUS43 KMPX 141233 WSWMPX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 633 AM CST MON DEC 14 2009 ...ACCUMULATING SNOWFALL LINGERS ACROSS EAST AND SOUTH CENTRAL MINNESOTA AND WEST CENTRAL WISCONSIN THIS MORNING... .A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 9 AM CST GENERALLY ALONG AND EAST OF THE INTERSTATE 35 CORRIDOR FROM CAMBRIDGE...TO THE TWIN CITIES METRO...TO ALBERT LEA. THE WINTER WEATHER ADVISORY IS NO LONGER EFFECT ACROSS THE REMAINDER OF CENTRAL AND SOUTH CENTRAL MINNESOTA...WHERE SNOW HAS TAPERED OFF. SNOWFALL ACCUMULATIONS OF 1 TO 3 INCHES WERE OBSERVED ACROSS PARTS OF CENTRAL MINNESOTA AND WEST CENTRAL WISCONSIN PRIOR TO DAYBREAK...GENERALLY ALONG AND NORTH OF AN OLIVIA...TO CHANHASSEN...TO BALDWIN WISCONSIN LINE. AN ADDITIONAL ONE HALF TO ONE INCH OF ACCUMULATION IS EXPECTED ALONG AND EAST OF THE INTERSTATE 35 CORRIDOR THIS MORNING...FOR TOTAL ACCUMULATIONS IN THE 2 TO 4 INCH RANGE ON AVERAGE. ISOLATED TOTALS AROUND 5 INCHES ARE STILL POSSIBLE IN WEST CENTRAL WISCONSIN...GENERALLY FROM NEW RICHMOND TO LADYSMITH AND POINTS NORTHWARD. ALTHOUGH LITTLE TO NO ACCUMULATIONS HAD OCCURRED PRIOR TO DAYBREAK FROM EXTREME SOUTH CENTRAL MINNESOTA NEAR ALBERT LEA...TO EAU CLAIRE WISCONSIN...SNOW IS STILL EXPECTED THIS MORNING. TOTAL ACCUMULATIONS IN THE ONE HALF INCH TO 2 INCH RANGE OF SNOW ARE STILL POSSIBLE...WITH THE ACCUMULATIONS ON THE HIGHER END OF THAT RANGE OCCURRING IN WEST CENTRAL WISCONSIN. MORNING COMMUTERS SHOULD BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. MNZ043>045-050-051-059-141345- /O.CAN.KMPX.WW.Y.0013.000000T0000Z-091214T1500Z/ MORRISON-MILLE LACS-KANABEC-BENTON-SHERBURNE-WRIGHT- INCLUDING THE CITIES OF...LITTLE FALLS...PRINCETON...MORA... FOLEY...ELK RIVER...MONTICELLO 633 AM CST MON DEC 14 2009 ...WINTER WEATHER ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN TWIN CITIES/CHANHASSEN HAS CANCELLED THE WINTER WEATHER ADVISORY. THE WINTER WEATHER ADVISORY IS NO LONGER EFFECT ACROSS PARTS OF CENTRAL MINNESOTA...GENERALLY WEST OF THE INTERSTATE 35 CORRIDOR...WHERE SNOW HAS TAPERED OFF. $$ MNZ052-053-060>063-068>070-076>078-084-085-093-WIZ014>016-023>028- 141500- /O.CON.KMPX.WW.Y.0013.000000T0000Z-091214T1500Z/ ISANTI-CHISAGO-HENNEPIN-ANOKA-RAMSEY-WASHINGTON-CARVER-SCOTT- DAKOTA-LE SUEUR-RICE-GOODHUE-WASECA-STEELE-FREEBORN-POLK-BARRON- RUSK-ST. CROIX-PIERCE-DUNN-PEPIN-CHIPPEWA-EAU CLAIRE- INCLUDING THE CITIES OF...CAMBRIDGE...CENTER CITY...MINNEAPOLIS... BLAINE...ST. PAUL...STILLWATER...CHASKA...SHAKOPEE...BURNSVILLE... LE SUEUR...FARIBAULT...RED WING...WASECA...OWATONNA... ALBERT LEA...AMERY...BALSAM LAKE...RICE LAKE...BARRON... LADYSMITH...HUDSON...NEW RICHMOND...RIVER FALLS...PRESCOTT... MENOMONIE...BOYCEVILLE...DURAND...PEPIN...CHIPPEWA FALLS... BLOOMER...EAU CLAIRE...ALTOONA 633 AM CST MON DEC 14 2009 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 9 AM CST THIS MORNING... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 9 AM CST THIS MORNING. * SNOW WILL CONTINUE THIS MORNING ACROSS PARTS OF CENTRAL AND SOUTH CENTRAL MINNESOTA AND WEST CENTRAL WISCONSIN. * TOTAL SNOWFALL AMOUNTS OF 2 TO 4 INCHES ARE EXPECTED TO COMPLICATE THIS MORNINGS COMMUTE. A FEW TOTALS AROUND 5 INCHES ARE STILL POSSIBLE IN WEST CENTRAL WISCONSIN...GENERALLY FROM NEW RICHMOND TO LADYSMITH AND POINTS NORTHWARD. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$
000 WWUS43 KMPX 141459 WSWMPX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 859 AM CST MON DEC 14 2009 ...ACCUMULATING SNOW WINDING DOWN... .SNOW WILL CONTINUE OVER PARTS OF WEST CENTRAL WISCONSIN...FROM EAU CLAIRE TO STANLEY...WITH ACCUMULATIONS REACHING 2 INCHES. OVER THE REST OF SOUTH CENTRAL AND EAST CENTRAL MINNESOTA...AND WEST CENTRAL WISCONSIN...ONLY PATCHES OF LIGHT SNOW OR FLURRIES CAN BE EXPECTED FOR THE REST OF THE MORNING. MNZ052-053-060>063-068>070-076>078-084-085-093-WIZ014>016-023>028- 141600- /O.EXP.KMPX.WW.Y.0013.000000T0000Z-091214T1500Z/ ISANTI-CHISAGO-HENNEPIN-ANOKA-RAMSEY-WASHINGTON-CARVER-SCOTT- DAKOTA-LE SUEUR-RICE-GOODHUE-WASECA-STEELE-FREEBORN-POLK-BARRON- RUSK-ST. CROIX-PIERCE-DUNN-PEPIN-CHIPPEWA-EAU CLAIRE- INCLUDING THE CITIES OF...CAMBRIDGE...CENTER CITY...MINNEAPOLIS... BLAINE...ST. PAUL...STILLWATER...CHASKA...SHAKOPEE...BURNSVILLE... LE SUEUR...FARIBAULT...RED WING...WASECA...OWATONNA... ALBERT LEA...AMERY...BALSAM LAKE...RICE LAKE...BARRON... LADYSMITH...HUDSON...NEW RICHMOND...RIVER FALLS...PRESCOTT... MENOMONIE...BOYCEVILLE...DURAND...PEPIN...CHIPPEWA FALLS... BLOOMER...EAU CLAIRE...ALTOONA 859 AM CST MON DEC 14 2009 ...WINTER WEATHER ADVISORY WILL EXPIRE AT 9 AM CST THIS MORNING... THE WINTER WEATHER ADVISORY WILL EXPIRE AT 9 AM CST THIS MORNING. * ACCUMULATING SNOW ENDING EAST OF EAU CLAIRE BY 10 AM. * TOTAL ACCUMULATIONS OVER THE REMAINDER OF WEST CENTRAL WISCONSIN INCLUDING EAU CLAIRE AND AUGUSTA...COULD REACH 2 INCHES. $$
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 Dec 13, 12:03 AM CST, 3 hours 16 minutes earlier.
Area forecast discussion, Dec 13, 12:03 AM CST, 3 hours 16 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 1203 AM CST SUN DEC 13 2009 .AVIATION... /06Z TAF ISSUANCE/ COLD FRONT AT TAF ISSUANCE STRETCHES FROM NW WI ACROSS THE WESTERN TWIN CITIES TO FAIRMONT. THE FRONT WILL BE EAST AND SOUTH OF KEAU BY 11Z. STRONG ARCTIC HIGH PRESSURE WILL CONTINUE TO SURGE SOUTHEAST OVERNIGHT FROM ND. NORTHWEST WINDS NEAR 15 KNOTS WILL BE COMMON INTO SUNDAY MORNING IN THE WAKE OF THE FRONT. MVFR CEILINGS COVERING JUST ABOUT ALL OF THE TAF SITES CURRENTLY. MVFR VISIBILITY LIKELY DEVELOPING AT KEAU SHORTLY AS LOW LEVEL MOISTURE CONTINUES TO INCREASE AHEAD OF THE FRONT. SOME FZDZ IS ALSO EXPECTED AT KEAU UNTIL THE FRONT MOVES THROUGH. IMPROVEMENT IN THE MVFR CEILINGS WILL OCCUR FROM NW TO SE SUNDAY MORNING AS DRIER AIR FLOWS IN FROM THE NW. A LOW PRESSURE SYSTEM WILL BEGIN MOVING EAST FROM COLORADO SUNDAY EVENING. THIS FEATURE WILL BRING MVFR CEILINGS/VISIBILITIES IN SNOW TO KAXN AND KRWF NEAR THE END OF THE TAF PERIOD. THE SNOW WITH CEILINGS AND VISIBILITIES BELOW MVFR FORECAST INTO KMSP BY 14/09Z AND CONTINUING TO 14/15Z. KAXN...OVC010-015 WITH FLURRIES WILL BE PASSING ACROSS THE SITE BETWEEN 06Z AND 08Z WITH SCT CONDITIONS DEVELOPING AFTER 08Z. NORTH TO NORTHWEST WINDS 13 KNOTS GUSTING TO OVER 20 KNOTS OVERNIGHT BEFORE SETTLING BACK TO 10 KNOTS ON SUNDAY. MVFR CONDITIONS IN SNOW EXPECTED TO SPREAD IN BY 14/04Z AND CONTINUE THROUGH 14/12Z. KSTC...MVFR CEILINGS MAY SCATTER FOR A TIME EARLY THIS MORNING BEFORE MORE MVFR CEILINGS ARRIVE WITH THE ARCTIC AIR. THE SECOND BATCH OF CLOUDS EXPECTED TO SCATTER AFTER 12Z. NORTH WINDS NEAR 12 KNOTS WITH GUSTS TO 18 KNOTS OVERNIGHT THEN MORE OF A NORTH WIND NEAR 10 KNOTS ON SUNDAY. KRWF...MVFR CEILINGS INTO SUNDAY MORNING AS ARCTIC AIR AND NORTH WINDS OF 15 TO 20 KNOTS OCCUR. SCT CONDITIONS EXPECTED BY 14Z WITH BKN-OVC VFR CEILINGS SUNDAY AFTERNOON AHEAD OF THE COLORADO LOW. SNOW SHOULD BEGIN NEAR 14/06Z AND CONTINUE TO 14/12Z WITH MVFR OR LOWER CONDITIONS. KMSP...MVFR CEILINGS INTO SUNDAY MORNING AS ARCTIC AIR AND NORTH WINDS AT 12 TO 18 KNOTS SPREAD IN. SCT CONDITIONS EXPECTED BY 13Z WITH BKN-OVC VFR CEILINGS SUNDAY AFTERNOON AHEAD OF THE COLORADO LOW. SNOW EXPECTED TO SPREAD ACROSS THE TWIN CITIES IN THE 14/06Z TO 14/09Z TIME FRAME WITH A RAPID LOWERING TO IFR CONDITIONS IN THE 14/09Z TO 14/12Z PERIOD. KRNH...MVFR CEILINGS INTO SUNDAY MORNING AS ARCTIC AIR AND NORTH WINDS AT 10 TO 15 KNOTS SPREAD IN. SCT CONDITIONS EXPECTED BY 15Z. BKN- OVC VFR CEILINGS DEVELOPING SUNDAY AFTERNOON AHEAD OF THE COLORADO LOW. SNOW EXPECTED AFTER THE END OF THE TAF PERIOD WITH DETERIORATING CONDITIONS IN THE 14/09Z TO 14/12Z TIME FRAME. KEAU...MVFR CEILINGS OVERNIGHT AS A COLD FRONT MOVES THROUGH BY 11Z. SOME POTENTIAL FOR LIGHT FREEZING DRIZZLE UNTIL THE FRONT MOVES THROUGH. ARCTIC AIR AND NORTH WINDS AT 10 TO 15 KNOTS FOR SUNDAY WITH MVFR CEILINGS LIFTING BY 15Z. BKN-OVC VFR CEILINGS DEVELOPING SUNDAY NIGHT AHEAD OF THE COLORADO LOW. SNOW EXPECTED ALONG WITH DETERIORATING CONDITIONS IN THE 14/12Z TO 14/18Z TIME FRAME. && .DISCUSSION... /ISSUED 259 PM CST SAT DEC 12 2009/ PRIMARY FORECAST CONCERN IS CHANCE FOR ACCUMULATING SNOW SUNDAY NIGHT INTO MONDAY. CURRENT WATER VAPOR IMAGERY AND RUC UPPER AIR ANALYSES SHOW BROAD AND DEEP UPPER LOW OVER CENTRAL CANADA... WITH FAST WEST-EAST FLOW IN PLACE ACROSS THE CONUS ALONG WITH A FEW RIPPLES/SHORT WAVES. SHORTWAVE CURRENTLY MOVING OUT INTO THE PLAINS WILL SWING BY TO OUR SOUTH AND EAST LATE TONIGHT INTO SUNDAY MORNING... WITH MOST OF ITS ASSOCIATED FORCING REMAINING TO OUR SOUTH. SOME FORCING ON ITS NORTHERN PERIPHERY... ALONG WITH CONVERGENCE ASSOCIATED WITH THE BOUNDARY DROPPING THROUGH... MAY STILL WORK TO SQUEEZE OUT SOME PCPN TONIGHT OVER MAINLY THE EASTERN CWFA. MOISTURE DEPTH IS LIMITED WITH THE POTENTIAL FOR ICE CRYSTALS FAIRLY LOW... SO WILL CONTINUE TO MENTION THE CHANCE FOR SOME FREEZING DRIZZLE ALONG WITH FLURRIES TONIGHT AS THINGS MOVE THROUGH THE AREA. SHORTWAVE CURRENTLY MOVING ONSHORE INTO CALIFORNIA WILL BE THE CULPRIT BEHIND OUR CHANCES FOR SNOW SUNDAY NIGHT INTO MONDAY. THE 12Z MODEL GUIDANCE IS IN REASONABLE AGREEMENT ON WHERE THIS SYSTEM WILL TRACK... ALTHOUGH TIMING DOES VARY A BIT... AND THERE IS ENOUGH VARIATION IN TRACK TO MAKE IT DIFFICULT TO PIN DOWN WHERE THE MOST SIGNIFICANT SNOWFALL WILL OCCUR. WITH THE SYSTEM MOVING ONSHORE IN THE NEXT 6 HOURS INTO A MORE DATA RICH ENVIRONMENT... PERHAPS THE 00Z RUNS WILL GET A BETTER HANDLE ON THINGS AND COME INTO CLEARER FOCUS. FOR NOW... BASED FORECAST ON A COMBINATION OF THE AVAILABLE GUIDANCE... PARTICULARLY THE NAM... GFS... ECMWF... AND CANADIAN RUNS. THE SREF MEAN IS SIMILAR TO THIS ENSEMBLE OF DETERMINISTIC SOLUTIONS... ALTHOUGH IT IS FASTER AND SHOWS A MUCH WIDER RANGE OF SOLUTIONS AMONG ITS INDIVIDUAL MEMBERSHIP WHICH YIELDS SPREADS IN PCPN TOTALS WHICH ARE SIMILAR TO ITS MEAN VALUES AND CORRESPONDINGLY VERY LOW PROBABILITIES FOR GREATER THAN 4 INCH AMOUNTS. BEFORE WE GET INTO THE DETAILS OF THE NEXT SYSTEM WE WILL FIRST NEED TO CONTEND WITH THE ARCTIC BOUNDARY WHICH WILL DROP SOUTHEAST THROUGH THE AREA TONIGHT INTO SUNDAY MORNING. AS MENTIONED ABOVE... THERE IS VERY LITTLE IN THE WAY OF DEEP SATURATION WITH THIS FEATURE AND MINIMAL FORCING... SO DIDN/T STRAY FAR FROM PREVIOUS FORECAST... MENTIONING LOW CHANCE POPS ACROSS THE EAST FOR TONIGHT. VERY COLD AIR WILL DROP IN BEHIND THE FRONT... WITH TEMPERATURES HOLDING NEAR STEADY OR FALLING A BIT THROUGH THE DAY ON SUNDAY. HOWEVER... WITH CLOUDS AND EVENTUALLY PCPN STREAMING IN SUNDAY NIGHT WE SHOULDN/T SEE TEMPERATURES FALL MUCH AND IN FACT THEY WILL LIKELY RISE A BIT SUNDAY NIGHT INTO MONDAY MORNING. THE SYSTEM FOR SUNDAY NIGHT INTO MONDAY LOOKS TO BE A FAIRLY QUICK HITTER WITH PCPN PROBABLY OCCURRING AT MOST LOCATIONS DURING A 6 HOUR WINDOW FROM WEST TO EAST BETWEEN 03Z AND 18Z MONDAY. FORCING APPEARS TO BE PARTITIONED INTO TWO AREAS... WITH THE BEST LOW LEVEL FRONTOGENESIS PRIMARILY STAYING TO OUR SOUTH AND EAST... WHILE THE BEST UPPER LEVEL DIVERGENCE SLIDES ACROSS THE NORTHERN AND CENTRAL PORTION OF OUR AREA. THE 280-285K ISENTROPIC SURFACES ALSO SHOW MODEST UPGLIDE AS THE SYSTEM MOVES THROUGH... WITH AROUND 2-3 G/KG MIXING RATIOS. THE CONSENSUS AMONGST THE MODELS IS FOR 0.1 TO 0.25 INCHES OF PCPN IN AN EAST TO WEST SWATH ACROSS THE CWFA... WHICH SHOULD WORK OUT TO 2 TO 5 INCHES OF SNOW GIVEN FAIRLY DECENT SNOW RATIOS. A LITTLE MORE PCPN AND SLIGHTLY HIGHER RATIOS COULD PUSH AMOUNTS TO NEAR WARNING CRITERIA... BUT AT THIS POINT THAT DOES NOT APPEAR TO BE SUFFICIENTLY LIKELY TO WARRANT A WATCH... PARTICULARLY SINCE IT WOULD LIKELY ONLY BE OVER A NARROW AREA WHICH IS AT YET NOT CERTAIN. IF PROBABILITIES FROM THE SREF WERE TO COME INTO BETTER AGREEMENT OR IF THE DETERMINISTIC RUNS WERE TO SHOW A BIT MORE QPF THEN SOMETHING MAY NEED TO BE CONSIDERED... BUT FOR NOW WILL SIMPLY INCLUDE 2 TO 5 INCH TOTALS IN THE FORECAST AND ANTICIPATE THE NEED FOR AN ADVISORY DOWN THE ROAD. A FEW OF THE CIPS ANALOGS DO SUGGEST SOME POTENTIAL FOR HIGHER AMOUNTS... PARTICULARLY THE 5 MARCH 1995 ANALOG WHICH IS A DECENT MATCH IN TERMS OF TRACK... ORIENTATION OF SNOW SWATH... AND 850MB TEMPERATURES. HOWEVER... IT APPEARS TO HAVE HAD A LONGER DURATION OF PCPN WITH WHICH TO WORK... WHICH ULTIMATELY SEEMS TO BE THE LIMITING FACTOR IN THIS CASE. RIDGING WILL BUILD INTO THE AREA MONDAY NIGHT... BRINGING SNOW TO AN END FROM WEST TO EAST... WITH A SUNNY BUT COLD DAY ON TAP FOR TUESDAY. WITH FRESH SNOW COVER AND THE POSSIBILITY OF CLEAR SKIES AND SLACKENING WINDS TUESDAY NIGHT... WE COULD SEE VERY COLD TEMPERATURES ACROSS THE AREA. WENT SEVERAL DEGREES BELOW GUIDANCE AT THIS POINT... BUT WOULDN/T BE SURPRISED IF THINGS NEED TO BE PUSHED DOWN FURTHER AS WE GET CLOSER TO THAT TIME FRAME. THE LATER PERIODS... WEDNESDAY THROUGH SATURDAY... LOOK FAIRLY QUIET AT THIS POINT. FAIRLY ZONAL FLOW OVER THE NORTHERN TIER OF THE CONUS ON WEDNESDAY WILL GIVE WAY TO RE-AMPLIFICATION BY SATURDAY... WITH RIDGING ADVERTISED TO BUILD TO OUR WEST AND TROUGHING TO THE EAST. NO SIGNIFICANT SYSTEMS ARE SUGGESTED TO IMPACT OUR AREA BY THE GFS... ECMWF... CANADIAN OR RESPECTIVE ENSEMBLES. THE ONLY FEATURE WHICH LOOKS TO AFFECT THE AREA WITH ANY PCPN WILL BE A SHORTWAVE EMBEDDED IN NORTHWEST UPPER FLOW THAT WILL SWING THROUGH DURING THE THURSDAY-FRIDAY TIME FRAME. THERE IS SOME DISAGREEMENT ON THE DEGREE TO WHICH THIS FEATURE WILL DIG SOUTH... SO WHERE ITS SWATH OF PCPN WILL WIND UP IS UNCERTAIN AT THIS POINT. THERE IS A WINDOW FOR SOME MOISTURE RETURN OUT AHEAD OF IT... SO IT COULD AT LEAST BRING ANOTHER ROUND OF ACCUMULATING SNOW... BUT WAY TOO EARLY TO TRY AND FIGURE OUT ANY SPECIFICS. WILL INCLUDE CHANCE POPS FROM THURSDAY INTO EARLY SATURDAY... PRIMARILY OVER THE NORTHERN AND EASTERN CWFA FOR NOW. OTHERWISE... THERE LOOKS TO BE A SLIGHT WARMING TREND DURING THE WEDNESDAY THROUGH SATURDAY TIME FRAME WITH PERHAPS A SHOT OF SOME COOLER TEMPERATURES BEHIND THE SYSTEM AT THE END OF THE WEEK. && .MPX WATCHES/WARNINGS/ADVISORIES... MN...NONE. WI...NONE. && RAH/TRH
Hazardous weather outlook, Dec 12, 3:51 PM CST, 11 hours 28 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 351 PM CST SAT DEC 12 2009 MNZ041>045-047>070-073>078-082>085-091>093-WIZ014>016-023>028- 132200- 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- 351 PM CST SAT DEC 12 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL AND SOUTHERN MINNESOTA...AND WEST CENTRAL WISCONSIN. .DAY ONE...THIS AFTERNOON AND TONIGHT THERE IS A SLIGHT CHANCE OF LIGHT FREEZING DRIZZLE AND LIGHT SNOW TONIGHT FROM SOUTH CENTRAL MINNESOTA INTO WEST CENTRAL WISCONSIN. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY THERE IS A CHANCE OF ACCUMULATING SNOWFALL ACROSS THE OUTLOOK AREA ON SUNDAY NIGHT INTO MONDAY MORNING. SNOWFALL TOTALS OF 2 TO 5 INCHES APPEAR LIKELY ACROSS THE AREA... ALTHOUGH HIGHER AMOUNTS MAY BE POSSIBLE... SO MONITOR LATER FORECASTS FOR UPDATES. IT APPEARS THAT ANOTHER SURGE OF ARCTIC AIR WILL ARRIVE MONDAY NIGHT INTO WEDNESDAY...AND BRING BRISK NORTHWEST WINDS AND VERY COLD WIND CHILL READINGS. .SPOTTER INFORMATION STATEMENT... SKYWARN SPOTTER ACTIVATION WILL NOT BE NEEDED. TRH
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.