Alert archive / Minnesota / Blizzard Watches in 2010
Blizzard Watch 2, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this blizzard watch at Dec 10, 2010, 4:27 AM CST for 6 counties in Iowa; 8 counties in Minnesota. It took effect at Dec 11, 2010, 12:00 AM CST. It was in force for .
The area
The counties it named.
The facts
- Issued
- Dec 10, 2010, 4:27 AM CST (10:27 UTC)
- In effect from
- Dec 11, 2010, 12:00 AM CST
- Expired
- Dec 10, 2010, 12:28 PM CST
- In force
- Issued by
- NWS Sioux Falls, SD
Counties Buena Vista County, IA, Cherokee County, IA, Clay County, IA, Dickinson County, IA, O'Brien County, IA, Osceola County, IA, Cottonwood County, MN, Jackson County, MN, Lincoln County, MN, Lyon County, MN, Murray County, MN, Nobles County, MN, Pipestone County, MN, Rock County, MN
The radar
The Sioux Falls radar (KFSD), 89 km from the middle of the area, began a volume at 10:31 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, 10.5 hours before the alert went out and 214 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
- 781 m above ground
- 0-6 km bulk shear
- 43 kt
- 0-1 km storm-relative helicity
- 203 m²/s²
- 0-3 km storm-relative helicity
- 219 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
829 WWUS43 KFSD 101027 WSWFSD URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE SIOUX FALLS SD 427 AM CST FRI DEC 10 2010 .LOW PRESSURE WILL DEVELOP JUST SOUTH OF THE AREA TODAY...THEN MOVE EAST INTO SOUTHERN MINNESOTA BY SATURDAY MORNING. A BAND OF MODERATE SNOW WILL DEVELOP TO THE NORTH OF THIS LOW PRESSURE TRACK...SPREADING ACCUMULATING SNOW ACROSS MUCH OF THE AREA. THE HIGHEST SNOW AMOUNTS WILL AGAIN BE ACROSS MINNESOTA...BUT AMOUNT OF 2 TO 4 INCHES WILL ALSO BE POSSIBLE BETWEEN THE JAMES RIVER VALLEY AND INTERSTATE 29. AS THE LOW SHIFTS EAST...VERY STRONG NORTH WINDS WILL DEVELOP DRAGGING MUCH COLDER AIR SOUTH AND CREATING WIDESPREAD BLOWING AND DRIFTING SNOW. VISIBILITIES ARE LIKELY TO FALL TO A HALF MILE OR LESS OVER MUCH OF THE REGION...ESPECIALLY EAST OF THE JAMES RIVER VALLEY. BY SUNDAY MORNING...WIND CHILL VALUES WILL FALL TO 20 TO 35 BELOW ZERO. IAZ003-014-101830- /O.CAN.KFSD.WS.A.0007.101211T0600Z-101212T0600Z/ /O.NEW.KFSD.BZ.A.0002.101211T0900Z-101212T0000Z/ DICKINSON-CLAY- INCLUDING THE CITIES OF...SPIRIT LAKE...MILFORD...ARNOLDS PARK... SPENCER 427 AM CST FRI DEC 10 2010 ...BLIZZARD WATCH IN EFFECT FROM LATE TONIGHT THROUGH SATURDAY AFTERNOON... ...WINTER STORM WATCH IS CANCELLED... THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A BLIZZARD WATCH...WHICH IS IN EFFECT FROM LATE TONIGHT THROUGH SATURDAY AFTERNOON. THE WINTER STORM WATCH HAS BEEN CANCELLED. * TIMING...A BRIEF MIX OF RAIN OR FREEZING RAIN WILL BE POSSIBLE LATE THIS EVENING TOWARDS MIDNIGHT...WITH PRECIPITATION BECOMING ALL SNOW AFTER MIDNIGHT. BY ABOUT 400 AM CST...BLOWING SNOW WILL INCREASE IN INTENSITY WITH VISIBILITIES FALLING TO A HALF A MILE OR LESS. * ACCUMULATIONS...SNOWFALL ACCUMULATION OF 4 TO 6 INCHES WILL BE POSSIBLE. * WIND AND VISIBILITY...NORTH TO NORTHWEST WINDS OF 25 TO 35 MPH WILL CREATE WIDESPREAD BLOWING SNOW LATE TONIGHT INTO SATURDAY WITH VISIBILITIES NEAR ZERO AT TIMES. * WIND CHILL VALUES...WIND CHILL VALUES WILL DROP TO 20 BELOW TO 30 BELOW BY LATE SATURDAY AFTERNOON AND EVENING. PRECAUTIONARY/PREPAREDNESS ACTIONS... A BLIZZARD WATCH MEANS THERE IS A POTENTIAL FOR FALLING AND/OR BLOWING SNOW WITH STRONG WINDS AND EXTREMELY POOR VISIBILITIES. THIS CAN LEAD TO WHITEOUT CONDITIONS AND MAKE TRAVEL VERY DANGEROUS. && $$ MNZ072-080-081-090-101830- /O.CAN.KFSD.WS.A.0007.101211T0600Z-101212T0600Z/ /O.NEW.KFSD.BZ.A.0002.101211T0600Z-101212T0000Z/ LYON-MURRAY-COTTONWOOD-JACKSON- INCLUDING THE CITIES OF...MARSHALL...SLAYTON...FULDA...WINDOM... MOUNTAIN LAKE...JACKSON...LAKEFIELD 427 AM CST FRI DEC 10 2010 ...BLIZZARD WATCH IN EFFECT FROM LATE TONIGHT THROUGH SATURDAY AFTERNOON... ...WINTER STORM WATCH IS CANCELLED... THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A BLIZZARD WATCH...WHICH IS IN EFFECT FROM LATE TONIGHT THROUGH SATURDAY AFTERNOON. THE WINTER STORM WATCH HAS BEEN CANCELLED. * TIMING...A BRIEF MIX OF SNOW AND FREEZING RAIN WILL BE POSSIBLE LATE THIS EVENING...WITH PRECIPITATION BECOMING ALL SNOW AFTER ABOUT 1000 PM CST. BY ABOUT 400 AM CST...BLOWING SNOW WILL INCREASE IN INTENSITY WITH VISIBILITIES FALLING TO A HALF A MILE OR LESS. * ACCUMULATIONS...SNOWFALL ACCUMULATION OF 5 TO 7 INCHES WILL BE POSSIBLE. * WIND AND VISIBILITY...NORTH TO NORTHWEST WINDS OF 25 TO 35 MPH WILL CREATE WIDESPREAD BLOWING SNOW LATE TONIGHT INTO SATURDAY WITH VISIBILITIES NEAR ZERO AT TIMES. * WIND CHILL VALUES...WIND CHILL VALUES WILL DROP TO 20 BELOW TO 30 BELOW BY LATE SATURDAY AFTERNOON AND EVENING. PRECAUTIONARY/PREPAREDNESS ACTIONS... A BLIZZARD WATCH MEANS THERE IS A POTENTIAL FOR FALLING AND/OR BLOWING SNOW WITH STRONG WINDS AND EXTREMELY POOR VISIBILITIES. THIS CAN LEAD TO WHITEOUT CONDITIONS AND MAKE TRAVEL VERY DANGEROUS. && $$ IAZ020-031-032-NEZ013-014-SDZ070-071-101830- /O.NEW.KFSD.WW.Y.0017.101211T0900Z-101212T0000Z/ PLYMOUTH-WOODBURY-IDA-DIXON-DAKOTA-CLAY-UNION- INCLUDING THE CITIES OF...LE MARS...SIOUX CITY...IDA GROVE... HOLSTEIN...BATTLE CREEK...WAKEFIELD...PONCA...ALLEN... SOUTH SIOUX CITY...VERMILLION...NORTH SIOUX CITY...BERESFORD... ELK POINT...ALCESTER...JEFFERSON 427 AM CST FRI DEC 10 2010 ...WINTER WEATHER ADVISORY IN EFFECT FROM 3 AM TO 6 PM CST SATURDAY... THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT FROM 3 AM TO 6 PM CST SATURDAY. * TIMING...RAIN WILL BE POSSIBLE THIS EVENING...BUT ANY RAIN SHOULD QUICKLY CHANGE TO SNOW AFTER MIDNIGHT. SNOW AND BLOWING SNOW WILL THEN BECOME POSSIBLE SATURDAY MORNING...CONTINUING INTO THE AFTERNOON. * ACCUMULATIONS...SNOWFALL TOTALS OF ONE TO THREE INCHES WILL BE POSSIBLE. * WIND AND VISIBILITY...NORTH TO NORTHWEST WINDS WILL INCREASE TO 20 TO 35 MPH LATE TONIGHT INTO SATURDAY...CREATING WIDESPREAD BLOWING SNOW WITH VISIBILITIES OF A HALF A MILE OR LESS AT TIMES. * WIND CHILL VALUES...WIND CHILL VALUES OF 20 TO 25 BELOW ZERO WILL DEVELOP SATURDAY NIGHT AND CONTINUE THROUGH SUNDAY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW MEANS THAT VISIBILITIES WILL BE LIMITED DUE TO A COMBINATION OF FALLING AND BLOWING SNOW. USE CAUTION WHEN TRAVELING...ESPECIALLY IN OPEN AREAS. && $$ IAZ001-012-SDZ039-040-054>056-061-062-066-067-101830- /O.NEW.KFSD.WW.Y.0017.101211T0600Z-101212T0000Z/ LYON-SIOUX-KINGSBURY-BROOKINGS-MINER-LAKE-MOODY-MCCOOK-MINNEHAHA- TURNER-LINCOLN- INCLUDING THE CITIES OF...ROCK RAPIDS...GEORGE...INWOOD... LARCHWOOD...ORANGE CITY...SIOUX CENTER...DE SMET...ARLINGTON... LAKE PRESTON...BROOKINGS...HOWARD...MADISON...FLANDREAU...SALEM... CANISTOTA...BRIDGEWATER...MONTROSE...SIOUX FALLS...PARKER... CENTERVILLE...MARION...VIBORG...HURLEY...CHANCELLOR...CANTON... LENNOX...TEA...HARRISBURG 427 AM CST FRI DEC 10 2010 ...WINTER WEATHER ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 6 PM CST SATURDAY... THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO 6 PM CST SATURDAY. * TIMING...A BRIEF PERIOD OF RAIN OR FREEZING RAIN WILL BE POSSIBLE THIS EVENING...BUT ANY PRECIPITATION SHOULD QUICKLY CHANGE TO SNOW AFTER ABOUT 1100 PM CST. SNOW AND BLOWING SNOW WILL THEN BECOME DEVELOP SATURDAY MORNING...CONTINUING INTO THE AFTERNOON. * ACCUMULATIONS...SNOWFALL TOTALS OF TWO TO FOUR INCHES WILL BE POSSIBLE. * WIND AND VISIBILITY...NORTH TO NORTHWEST WINDS WILL INCREASE TO 20 TO 35 MPH LATE TONIGHT INTO SATURDAY...CREATING WIDESPREAD BLOWING SNOW WITH VISIBILITIES OF A HALF A MILE OR LESS AT TIMES. * WIND CHILL VALUES...WIND CHILL VALUES OF 20 TO 25 BELOW ZERO WILL DEVELOP SATURDAY NIGHT AND CONTINUE THROUGH SUNDAY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW MEANS THAT VISIBILITIES WILL BE LIMITED DUE TO A COMBINATION OF FALLING AND BLOWING SNOW. USE CAUTION WHEN TRAVELING...ESPECIALLY IN OPEN AREAS. && $$ MNZ071-089-097-098-101830- /O.NEW.KFSD.BZ.A.0002.101211T0600Z-101212T0000Z/ LINCOLN-NOBLES-PIPESTONE-ROCK- INCLUDING THE CITIES OF...TYLER...HENDRICKS...LAKE BENTON... IVANHOE...WORTHINGTON...PIPESTONE...LUVERNE 427 AM CST FRI DEC 10 2010 ...BLIZZARD WATCH IN EFFECT FROM LATE TONIGHT THROUGH SATURDAY AFTERNOON... THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A BLIZZARD WATCH...WHICH IS IN EFFECT FROM LATE TONIGHT THROUGH SATURDAY AFTERNOON. * TIMING...A BRIEF PERIOD OF SNOW AND FREEZING RAIN WILL BE POSSIBLE THIS EVENING...BUT PRECIPITATION WILL QUICKLY BECOME ALL SNOW LATE THIS EVENING. NORTH WINDS WILL INCREASE QUICKLY AFTER MIDNIGHT WHICH WILL BRING THE POTENTIAL FOR WIDESPREAD BLOWING AND DRIFTING SNOW WITH NEAR ZERO VISIBILITIES POSSIBLE. * ACCUMULATIONS...SNOWFALL TOTALS OF 4 TO 6 INCHES WILL BE POSSIBLE. * WIND AND VISIBILITY...NORTH WINDS WILL INCREASE TO 25 TO 40 MPH LATE TONIGHT INTO SATURDAY WHICH WILL CREATE WIDESPREAD BLOWING AND DRIFTING SNOW WITH VISIBILITIES POSSIBLY NEAR ZERO AT TIMES. * WIND CHILL VALUES...WIND CHILL VALUES OF 20 TO 35 BELOW ZERO WILL BE POSSIBLE SATURDAY NIGHT INTO SUNDAY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A BLIZZARD WATCH MEANS THERE IS A POTENTIAL FOR FALLING AND/OR BLOWING SNOW WITH STRONG WINDS AND EXTREMELY POOR VISIBILITIES. THIS CAN LEAD TO WHITEOUT CONDITIONS AND MAKE TRAVEL VERY DANGEROUS. && $$ IAZ002-013-021-022-101830- /O.NEW.KFSD.BZ.A.0002.101211T0900Z-101212T0000Z/ OSCEOLA-OBRIEN-CHEROKEE-BUENA VISTA- INCLUDING THE CITIES OF...SIBLEY...SHELDON...HARTLEY...SANBORN... CHEROKEE...STORM LAKE 427 AM CST FRI DEC 10 2010 ...BLIZZARD WATCH IN EFFECT FROM LATE TONIGHT THROUGH SATURDAY AFTERNOON... THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A BLIZZARD WATCH...WHICH IS IN EFFECT FROM LATE TONIGHT THROUGH SATURDAY AFTERNOON. * TIMING...A BRIEF PERIOD OF RAIN AND FREEZING RAIN WILL BE POSSIBLE THIS EVENING...BUT PRECIPITATION WILL QUICKLY BECOME ALL SNOW AFTER MIDNIGHT. NORTH WINDS WILL INCREASE QUICKLY LATE TONIGHT WHICH WILL BRING THE POTENTIAL FOR WIDESPREAD BLOWING AND DRIFTING SNOW WITH NEAR ZERO VISIBILITIES POSSIBLE. * ACCUMULATIONS...SNOWFALL TOTALS OF 4 TO 6 INCHES WILL BE POSSIBLE. * WIND AND VISIBILITY...NORTH WINDS WILL INCREASE TO 25 TO 40 MPH LATE TONIGHT INTO SATURDAY WHICH WILL CREATE WIDESPREAD BLOWING AND DRIFTING SNOW WITH VISIBILITIES POSSIBLY NEAR ZERO AT TIMES. * WIND CHILL VALUES...WIND CHILL VALUES OF 20 TO 35 BELOW ZERO WILL BE POSSIBLE SATURDAY NIGHT INTO SUNDAY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A BLIZZARD WATCH MEANS THERE IS A POTENTIAL FOR FALLING AND/OR BLOWING SNOW WITH STRONG WINDS AND EXTREMELY POOR VISIBILITIES. THIS CAN LEAD TO WHITEOUT CONDITIONS AND MAKE TRAVEL VERY DANGEROUS. && $$
2 follow-up statements
394 WWUS43 KFSD 101211 WSWFSD URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE SIOUX FALLS SD 611 AM CST FRI DEC 10 2010 .LOW PRESSURE WILL DEVELOP JUST SOUTH OF THE AREA TODAY...THEN MOVE EAST INTO SOUTHERN MINNESOTA BY SATURDAY MORNING. A BAND OF MODERATE SNOW WILL DEVELOP TO THE NORTH OF THIS LOW PRESSURE TRACK...SPREADING ACCUMULATING SNOW ACROSS MUCH OF THE AREA. THE HIGHEST SNOW AMOUNTS WILL AGAIN BE ACROSS MINNESOTA...BUT AMOUNTS OF 2 TO 4 INCHES WILL ALSO BE POSSIBLE BETWEEN THE JAMES RIVER VALLEY AND INTERSTATE 29. AS THE LOW SHIFTS EAST...VERY STRONG NORTH WINDS WILL DEVELOP DRAGGING MUCH COLDER AIR SOUTH AND CREATING WIDESPREAD BLOWING AND DRIFTING SNOW. VISIBILITIES ARE LIKELY TO FALL TO A HALF MILE OR LESS OVER MUCH OF THE REGION... ESPECIALLY EAST OF THE JAMES RIVER VALLEY. BY SUNDAY MORNING... WIND CHILL VALUES WILL FALL TO 20 BELOW TO 35 BELOW ZERO. IAZ020-031-032-NEZ013-014-SDZ070-071-102015- /O.CON.KFSD.WW.Y.0017.101211T0900Z-101212T0000Z/ PLYMOUTH-WOODBURY-IDA-DIXON-DAKOTA-CLAY-UNION- INCLUDING THE CITIES OF...LE MARS...SIOUX CITY...IDA GROVE... HOLSTEIN...BATTLE CREEK...WAKEFIELD...PONCA...ALLEN... SOUTH SIOUX CITY...VERMILLION...NORTH SIOUX CITY...BERESFORD... ELK POINT...ALCESTER...JEFFERSON 611 AM CST FRI DEC 10 2010 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 3 AM TO 6 PM CST SATURDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 3 AM TO 6 PM CST SATURDAY. * TIMING...RAIN WILL BE POSSIBLE THIS EVENING...BUT ANY RAIN SHOULD QUICKLY CHANGE TO SNOW AFTER MIDNIGHT. SNOW AND BLOWING SNOW WILL THEN BECOME POSSIBLE SATURDAY MORNING...CONTINUING INTO THE AFTERNOON. * ACCUMULATIONS...SNOWFALL TOTALS OF ONE TO THREE INCHES WILL BE POSSIBLE. * WIND AND VISIBILITY...NORTH TO NORTHWEST WINDS WILL INCREASE TO 20 TO 35 MPH LATE TONIGHT INTO SATURDAY...CREATING WIDESPREAD BLOWING SNOW WITH VISIBILITIES OF A HALF A MILE OR LESS AT TIMES. * WIND CHILL VALUES...WIND CHILL VALUES OF 20 BELOW TO 25 BELOW ZERO WILL DEVELOP SATURDAY NIGHT AND CONTINUE THROUGH SUNDAY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW MEANS THAT VISIBILITIES WILL BE LIMITED DUE TO A COMBINATION OF FALLING AND BLOWING SNOW. USE CAUTION WHEN TRAVELING...ESPECIALLY IN OPEN AREAS. && $$ IAZ001-012-SDZ039-040-054>056-061-062-066-067-102015- /O.CON.KFSD.WW.Y.0017.101211T0600Z-101212T0000Z/ LYON-SIOUX-KINGSBURY-BROOKINGS-MINER-LAKE-MOODY-MCCOOK-MINNEHAHA- TURNER-LINCOLN- INCLUDING THE CITIES OF...ROCK RAPIDS...GEORGE...INWOOD... LARCHWOOD...ORANGE CITY...SIOUX CENTER...DE SMET...ARLINGTON... LAKE PRESTON...BROOKINGS...HOWARD...MADISON...FLANDREAU...SALEM... CANISTOTA...BRIDGEWATER...MONTROSE...SIOUX FALLS...PARKER... CENTERVILLE...MARION...VIBORG...HURLEY...CHANCELLOR...CANTON... LENNOX...TEA...HARRISBURG 611 AM CST FRI DEC 10 2010 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 6 PM CST SATURDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 6 PM CST SATURDAY. * TIMING...A BRIEF PERIOD OF RAIN OR FREEZING RAIN WILL BE POSSIBLE THIS EVENING...BUT ANY PRECIPITATION SHOULD QUICKLY CHANGE TO SNOW AFTER ABOUT 1100 PM CST. SNOW AND BLOWING SNOW WILL THEN BECOME DEVELOP SATURDAY MORNING...CONTINUING INTO THE AFTERNOON. * ACCUMULATIONS...SNOWFALL TOTALS OF TWO TO FOUR INCHES WILL BE POSSIBLE. * WIND AND VISIBILITY...NORTH TO NORTHWEST WINDS WILL INCREASE TO 20 TO 35 MPH LATE TONIGHT INTO SATURDAY...CREATING WIDESPREAD BLOWING SNOW WITH VISIBILITIES OF A HALF A MILE OR LESS AT TIMES. * WIND CHILL VALUES...WIND CHILL VALUES OF 20 BELOW TO 25 BELOW ZERO WILL DEVELOP SATURDAY NIGHT AND CONTINUE THROUGH SUNDAY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW MEANS THAT VISIBILITIES WILL BE LIMITED DUE TO A COMBINATION OF FALLING AND BLOWING SNOW. USE CAUTION WHEN TRAVELING...ESPECIALLY IN OPEN AREAS. && $$ MNZ071-072-080-081-089-090-097-098-102015- /O.CON.KFSD.BZ.A.0002.101211T0600Z-101212T0000Z/ LINCOLN-LYON-MURRAY-COTTONWOOD-NOBLES-JACKSON-PIPESTONE-ROCK- INCLUDING THE CITIES OF...TYLER...HENDRICKS...LAKE BENTON... IVANHOE...MARSHALL...SLAYTON...FULDA...WINDOM...MOUNTAIN LAKE... WORTHINGTON...JACKSON...LAKEFIELD...PIPESTONE...LUVERNE 611 AM CST FRI DEC 10 2010 ...BLIZZARD WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH SATURDAY AFTERNOON... A BLIZZARD WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH SATURDAY AFTERNOON. * TIMING...A BRIEF PERIOD OF SNOW AND FREEZING RAIN WILL BE POSSIBLE THIS EVENING...BUT PRECIPITATION WILL QUICKLY BECOME ALL SNOW LATE THIS EVENING. NORTH WINDS WILL INCREASE QUICKLY AFTER MIDNIGHT WHICH WILL BRING THE POTENTIAL FOR WIDESPREAD BLOWING AND DRIFTING SNOW WITH NEAR ZERO VISIBILITIES POSSIBLE. * ACCUMULATIONS...SNOWFALL TOTALS OF 4 TO 6 INCHES WILL BE POSSIBLE. * WIND AND VISIBILITY...NORTH WINDS WILL INCREASE TO 25 TO 40 MPH LATE TONIGHT INTO SATURDAY WHICH WILL CREATE WIDESPREAD BLOWING AND DRIFTING SNOW WITH VISIBILITIES POSSIBLY NEAR ZERO AT TIMES. * WIND CHILL VALUES...WIND CHILL VALUES OF 20 BELOW TO 35 BELOW ZERO WILL BE POSSIBLE SATURDAY NIGHT INTO SUNDAY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A BLIZZARD WATCH MEANS THERE IS A POTENTIAL FOR FALLING AND/OR BLOWING SNOW WITH STRONG WINDS AND EXTREMELY POOR VISIBILITIES. THIS CAN LEAD TO WHITEOUT CONDITIONS AND MAKE TRAVEL VERY DANGEROUS. && $$ IAZ002-003-013-014-021-022-102015- /O.CON.KFSD.BZ.A.0002.101211T0900Z-101212T0000Z/ OSCEOLA-DICKINSON-OBRIEN-CLAY-CHEROKEE-BUENA VISTA- INCLUDING THE CITIES OF...SIBLEY...SPIRIT LAKE...MILFORD... ARNOLDS PARK...SHELDON...HARTLEY...SANBORN...SPENCER...CHEROKEE... STORM LAKE 611 AM CST FRI DEC 10 2010 ...BLIZZARD WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH SATURDAY AFTERNOON... A BLIZZARD WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH SATURDAY AFTERNOON. * TIMING...A BRIEF PERIOD OF RAIN AND FREEZING RAIN WILL BE POSSIBLE THIS EVENING...BUT PRECIPITATION WILL QUICKLY BECOME ALL SNOW AFTER MIDNIGHT. NORTH WINDS WILL INCREASE QUICKLY LATE TONIGHT WHICH WILL BRING THE POTENTIAL FOR WIDESPREAD BLOWING AND DRIFTING SNOW WITH NEAR ZERO VISIBILITIES POSSIBLE. * ACCUMULATIONS...SNOWFALL TOTALS OF 4 TO 6 INCHES WILL BE POSSIBLE. * WIND AND VISIBILITY...NORTH WINDS WILL INCREASE TO 25 TO 40 MPH LATE TONIGHT INTO SATURDAY WHICH WILL CREATE WIDESPREAD BLOWING AND DRIFTING SNOW WITH VISIBILITIES POSSIBLY NEAR ZERO AT TIMES. * WIND CHILL VALUES...WIND CHILL VALUES OF 20 BELOW TO 35 BELOW ZERO WILL BE POSSIBLE SATURDAY NIGHT INTO SUNDAY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A BLIZZARD WATCH MEANS THERE IS A POTENTIAL FOR FALLING AND/OR BLOWING SNOW WITH STRONG WINDS AND EXTREMELY POOR VISIBILITIES. THIS CAN LEAD TO WHITEOUT CONDITIONS AND MAKE TRAVEL VERY DANGEROUS. && $$
266 WWUS43 KFSD 101828 WSWFSD URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE SIOUX FALLS SD 1228 PM CST FRI DEC 10 2010 .LOW PRESSURE WILL DEVELOP ALONG THE SOUTH DAKOTA AND NEBRASKA BORDER THIS AFTERNOON...AND MOVE INTO SOUTHERN MINNESOTA BY SATURDAY MORNING. LIGHT FREEZING RAIN IS EXPECTED TO DEVELOP OVER SOUTHWESTERN MINNESOTA BY LATE THIS AFTERNOON AND CONTINUE INTO THIS EVENING. THEN SNOW WILL DEVELOP OVER EASTERN SOUTH DAKOTA AROUND MIDNIGHT AND SPREAD INTO NORTHEAST NEBRASKA...SOUTHWEST MINNESOTA AND NORTHWEST IOWA TOWARD DAWN ON SATURDAY. THE HIGHEST SNOW AMOUNTS WILL AGAIN BE ACROSS SOUTHWEST MINNESOTA...BUT AMOUNTS OF 2 TO 4 INCHES WILL ALSO BE POSSIBLE EAST OF THE JAMES RIVER VALLEY IN SOUTH DAKOTA AND INTO NORTHWEST IOWA. AS THE LOW SHIFTS EAST...VERY STRONG NORTH WINDS WILL DEVELOP DRAGGING MUCH COLDER AIR SOUTH AND CREATING WIDESPREAD BLOWING SNOW WITH BLIZZARD CONDITIONS OVER PORTIONS OF EAST CENTRAL SOUTH DAKOTA...SOUTHWEST MINNESOTA...AND NORTHWEST IOWA. IN ADDITION...THE STRONG WINDS AND ARCTIC AIR WILL COMBINE TO PRODUCE WIND CHILLS FROM 10 BELOW TO 25 BELOW ZERO MUCH OF SATURDAY. MNZ071-072-080-081-089-090-097-110230- /O.UPG.KFSD.BZ.A.0002.101211T0600Z-101212T0000Z/ /O.NEW.KFSD.BZ.W.0003.101211T0600Z-101212T0300Z/ /O.NEW.KFSD.ZR.Y.0002.101210T2200Z-101211T0600Z/ LINCOLN-LYON-MURRAY-COTTONWOOD-NOBLES-JACKSON-PIPESTONE- INCLUDING THE CITIES OF...TYLER...HENDRICKS...LAKE BENTON... IVANHOE...MARSHALL...SLAYTON...FULDA...WINDOM...MOUNTAIN LAKE... WORTHINGTON...JACKSON...LAKEFIELD...PIPESTONE 1228 PM CST FRI DEC 10 2010 ...FREEZING RAIN ADVISORY IN EFFECT FROM 4 PM THIS AFTERNOON TO MIDNIGHT CST TONIGHT... ...BLIZZARD WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 9 PM CST SATURDAY... THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A BLIZZARD WARNING...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO 9 PM CST SATURDAY. A FREEZING RAIN ADVISORY HAS ALSO BEEN ISSUED. THIS FREEZING RAIN ADVISORY IS IN EFFECT FROM 4 PM THIS AFTERNOON TO MIDNIGHT CST TONIGHT. THE BLIZZARD WATCH IS NO LONGER IN EFFECT. * TIMING...FREEZING RAIN IS EXPECTED TO DEVELOP LATE THIS AFTERNOON AND CONTINUE INTO THIS EVENING. FREEZING RAIN WILL CHANGE TO SNOW AROUND MIDNIGHT WITH SNOW HEAVY AT TIMES FROM LATE TONIGHT INTO SATURDAY MORNING. SNOW IS EXPECTED TO END DURING THE AFTERNOON. HOWEVER...STRONG NORTHWEST WINDS WILL PRODUCE BLIZZARD CONDITIONS WITH NEAR ZERO VISIBILITIES BY LATE TONIGHT AND CONTINUE INTO SATURDAY EVENING. * ACCUMULATIONS...ICE ACCUMULATIONS OF UP TO ONE TENTH OF INCH CAN BE EXPECTED THIS EVENING. SNOWFALL TOTALS LATER TONIGHT AND SATURDAY WILL RANGE FROM 4 INCHES AROUND LUVERNE TO 8 INCHES AROUND MARSHALL AND WINDOM. * WIND AND VISIBILITY...NORTH WINDS WILL INCREASE TO 25 TO 40 MPH WITH GUSTS TO 50 MPH LATE TONIGHT. THE STRONG WINDS WILL CONTINUE INTO SATURDAY EVENING. WIDESPREAD BLOWING AND DRIFTING SNOW WILL RESULT IN VISIBILITIES NEAR ZERO AT TIMES...ESPECIALLY IN OPEN AREAS. * WIND CHILL VALUES...WIND CHILL VALUES OF 15 BELOW TO 25 BELOW ZERO WILL BE POSSIBLE SATURDAY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A BLIZZARD WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. FALLING AND BLOWING SNOW WITH STRONG WINDS AND POOR VISIBILITIES ARE LIKELY. THIS WILL LEAD TO WHITEOUT CONDITIONS...MAKING TRAVEL EXTREMELY DANGEROUS. DO NOT TRAVEL. IF YOU MUST...HAVE A WINTER SURVIVAL KIT WITH YOU. IF YOU GET STRANDED...STAY WITH YOUR VEHICLE. A FREEZING RAIN ADVISORY MEANS THAT PERIODS OF FREEZING RAIN OR FREEZING DRIZZLE WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS. SLOW DOWN AND USE CAUTION WHILE DRIVING. && $$ SDZ040-056-110230- /O.UPG.KFSD.WW.Y.0017.101211T0600Z-101212T0000Z/ /O.NEW.KFSD.BZ.W.0003.101211T0600Z-101212T0300Z/ BROOKINGS-MOODY- INCLUDING THE CITIES OF...BROOKINGS...FLANDREAU 1228 PM CST FRI DEC 10 2010 ...BLIZZARD WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 9 PM CST SATURDAY... THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A BLIZZARD WARNING...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO 9 PM CST SATURDAY. THE WINTER WEATHER ADVISORY IS NO LONGER IN EFFECT. * TIMING...THERE IS A CHANCE OF FREEZING RAIN THIS AFTERNOON AND EVENING. SNOW IS EXPECTED TO DEVELOP BY MIDNIGHT. SNOW MAY BE HEAVY AT TIMES LATE TONIGHT. THE SNOW IS EXPECTED TO END BY EARLY SATURDAY AFTERNOON. HOWEVER...STRONG NORTHWEST WINDS WILL PRODUCE BLIZZARD CONDITIONS WITH NEAR ZERO VISIBILITY BEGINNING LATE TONIGHT AND CONTINUING INTO SATURDAY EVENING. * ACCUMULATIONS...SNOWFALL TOTALS OF THREE TO SIX INCHES IS EXPECTED WITH THE HEAVIEST SNOWFALL NORTH AND EAST OF BROOKINGS. * WIND AND VISIBILITY...NORTH TO NORTHWEST WINDS WILL INCREASE TO 20 TO 35 MPH WITH GUSTS TO 45 MPH LATE TONIGHT INTO SATURDAY. THIS WILL CREATE BLIZZARD CONDITIONS WITH VISIBILITIES NEAR ZERO LATER TONIGHT AND SATURDAY. * WIND CHILL VALUES...WIND CHILL VALUES OF 15 BELOW TO 25 BELOW ZERO WILL DEVELOP ON SATURDAY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A BLIZZARD WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. FALLING AND BLOWING SNOW WITH STRONG WINDS AND POOR VISIBILITIES ARE LIKELY. THIS WILL LEAD TO WHITEOUT CONDITIONS...MAKING TRAVEL EXTREMELY DANGEROUS. DO NOT TRAVEL. IF YOU MUST...HAVE A WINTER SURVIVAL KIT WITH YOU. IF YOU GET STRANDED...STAY WITH YOUR VEHICLE. && $$ IAZ001-110230- /O.UPG.KFSD.WW.Y.0017.101211T0600Z-101212T0000Z/ /O.NEW.KFSD.BZ.W.0003.101211T0900Z-101212T0300Z/ LYON- INCLUDING THE CITIES OF...ROCK RAPIDS...GEORGE...INWOOD... LARCHWOOD 1228 PM CST FRI DEC 10 2010 ...BLIZZARD WARNING IN EFFECT FROM 3 AM TO 9 PM CST SATURDAY... THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A BLIZZARD WARNING...WHICH IS IN EFFECT FROM 3 AM TO 9 PM CST SATURDAY. THE WINTER WEATHER ADVISORY IS NO LONGER IN EFFECT. * TIMING...A BRIEF PERIOD OF RAIN CAN BE EXPECTED THIS AFTERNOON AND EARLY THIS EVENING. RAIN MAY BRIEFLY CHANGE TO FREEZING RAIN AFTER MIDNIGHT AND THEN CHANGE TO ALL SNOW AFTER 3 AM CST. SNOW WILL CONTINUE INTO SATURDAY AFTERNOON BEFORE ENDING BY LATE AFTERNOON. AS NORTHWEST WINDS INCREASE EARLY SATURDAY MORNING...BLIZZARD CONDITIONS WITH VISIBILITIES NEAR ZERO WILL DEVELOP AND CONTINUE INTO SATURDAY EVENING. * ACCUMULATIONS...SNOWFALL TOTALS WILL BE AROUND 3 INCHES. * WIND AND VISIBILITY...NORTH TO NORTHWEST WINDS WILL INCREASE TO 25 TO 35 MPH WITH GUSTS UP TO 50 MPH TOWARD DAWN ON SATURDAY. THIS WILL CREATE BLIZZARD CONDITIONS WITH NEAR ZERO VISIBILITIES THROUGH SATURDAY EVENING...ESPECIALLY IN OPEN AREAS. * WIND CHILL VALUES...WIND CHILL VALUES OF 10 BELOW TO 20 BELOW ZERO CAN BE EXPECTED ON SATURDAY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A BLIZZARD WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. FALLING AND BLOWING SNOW WITH STRONG WINDS AND POOR VISIBILITIES ARE LIKELY. THIS WILL LEAD TO WHITEOUT CONDITIONS...MAKING TRAVEL EXTREMELY DANGEROUS. DO NOT TRAVEL. IF YOU MUST...HAVE A WINTER SURVIVAL KIT WITH YOU. IF YOU GET STRANDED...STAY WITH YOUR VEHICLE. && $$ IAZ002-003-013-014-022-110230- /O.UPG.KFSD.BZ.A.0002.101211T0900Z-101212T0000Z/ /O.NEW.KFSD.BZ.W.0003.101211T0900Z-101212T0300Z/ OSCEOLA-DICKINSON-OBRIEN-CLAY-BUENA VISTA- INCLUDING THE CITIES OF...SIBLEY...SPIRIT LAKE...MILFORD... ARNOLDS PARK...SHELDON...HARTLEY...SANBORN...SPENCER...STORM LAKE 1228 PM CST FRI DEC 10 2010 ...BLIZZARD WARNING IN EFFECT FROM 3 AM TO 9 PM CST SATURDAY... THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A BLIZZARD WARNING...WHICH IS IN EFFECT FROM 3 AM TO 9 PM CST SATURDAY. THE BLIZZARD WATCH IS NO LONGER IN EFFECT. * TIMING...A BRIEF PERIOD OF RAIN CAN BE EXPECTED THIS AFTERNOON AND EARLY THIS EVENING. RAIN MAY BRIEFLY CHANGE TO FREEZING RAIN AFTER MIDNIGHT AND THEN CHANGE TO ALL SNOW AFTER 3 AM CST. SNOW WILL CONTINUE INTO SATURDAY AFTERNOON BEFORE ENDING BY LATE AFTERNOON. AS NORTHWEST WINDS INCREASE EARLY SATURDAY MORNING...BLIZZARD CONDITIONS WITH VISIBILITIES NEAR ZERO WILL DEVELOP AND CONTINUE INTO SATURDAY EVENING. * ACCUMULATIONS...SNOWFALL TOTALS WILL RANGE FROM 3 TO 5 INCHES WITH THE HEAVIEST SNOWFALL AROUND SPENCER AND SPIRIT LAKE. * WIND AND VISIBILITY...NORTH TO NORTHWEST WINDS WILL INCREASE TO 25 TO 35 MPH WITH GUSTS UP TO 50 MPH TOWARD DAWN ON SATURDAY. THIS WILL CREATE BLIZZARD CONDITIONS WITH NEAR ZERO VISIBILITIES THROUGH SATURDAY EVENING...ESPECIALLY IN OPEN AREAS. * WIND CHILL VALUES...WIND CHILL VALUES OF 10 BELOW TO 20 BELOW ZERO CAN BE EXPECTED ON SATURDAY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A BLIZZARD WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. FALLING AND BLOWING SNOW WITH STRONG WINDS AND POOR VISIBILITIES ARE LIKELY. THIS WILL LEAD TO WHITEOUT CONDITIONS...MAKING TRAVEL EXTREMELY DANGEROUS. DO NOT TRAVEL. IF YOU MUST...HAVE A WINTER SURVIVAL KIT WITH YOU. IF YOU GET STRANDED...STAY WITH YOUR VEHICLE. && $$ MNZ098-110230- /O.UPG.KFSD.BZ.A.0002.101211T0600Z-101212T0000Z/ /O.NEW.KFSD.BZ.W.0003.101211T0600Z-101212T0300Z/ ROCK- INCLUDING THE CITY OF...LUVERNE 1228 PM CST FRI DEC 10 2010 ...BLIZZARD WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 9 PM CST SATURDAY... THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A BLIZZARD WARNING...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO 9 PM CST SATURDAY. THE BLIZZARD WATCH IS NO LONGER IN EFFECT. * TIMING...THERE IS A CHANCE OF RAIN OR FREEZING RAIN THIS AFTERNOON AND EVENING. SNOW IS EXPECTED TO DEVELOP BY MIDNIGHT. SNOW MAY BE HEAVY AT TIMES LATE TONIGHT. THE SNOW IS EXPECTED TO END BY EARLY SATURDAY AFTERNOON. HOWEVER...STRONG NORTHWEST WINDS WILL PRODUCE BLIZZARD CONDITIONS WITH NEAR ZERO VISIBILITY BEGINNING LATE TONIGHT AND CONTINUING INTO SATURDAY EVENING. * ACCUMULATIONS...SNOWFALL TOTALS OF THREE TO FIVE INCHES IS EXPECTED WITH THE HEAVIEST SNOWFALL NORTH AND EAST OF LUVERNE. * WIND AND VISIBILITY...NORTH TO NORTHWEST WINDS WILL INCREASE TO 20 TO 35 MPH WITH GUSTS TO 45 MPH LATE TONIGHT INTO SATURDAY. THIS WILL CREATE BLIZZARD CONDITIONS WITH VISIBILITIES NEAR ZERO LATER TONIGHT AND SATURDAY. * WIND CHILL VALUES...WIND CHILL VALUES OF 15 BELOW TO 25 BELOW ZERO WILL DEVELOP ON SATURDAY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A BLIZZARD WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. FALLING AND BLOWING SNOW WITH STRONG WINDS AND POOR VISIBILITIES ARE LIKELY. THIS WILL LEAD TO WHITEOUT CONDITIONS...MAKING TRAVEL EXTREMELY DANGEROUS. DO NOT TRAVEL. IF YOU MUST...HAVE A WINTER SURVIVAL KIT WITH YOU. IF YOU GET STRANDED...STAY WITH YOUR VEHICLE. && $$ IAZ021-110230- /O.UPG.KFSD.BZ.A.0002.101211T0900Z-101212T0000Z/ /O.EXB.KFSD.WW.Y.0017.101211T0900Z-101212T0300Z/ CHEROKEE- INCLUDING THE CITY OF...CHEROKEE 1228 PM CST FRI DEC 10 2010 ...WINTER WEATHER ADVISORY IN EFFECT FROM 3 AM TO 9 PM CST SATURDAY... THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT FROM 3 AM TO 9 PM CST SATURDAY. THE BLIZZARD WATCH IS NO LONGER IN EFFECT. * TIMING...A BRIEF PERIOD OF RAIN CAN BE EXPECTED THIS AFTERNOON AND EARLY THIS EVENING. RAIN MAY BRIEFLY CHANGE TO FREEZING RAIN AFTER MIDNIGHT AND THEN CHANGE TO ALL SNOW AFTER 3 AM CST. SNOW WILL CONTINUE INTO SATURDAY AFTERNOON BEFORE ENDING BY LATE AFTERNOON. AS NORTHWEST WINDS INCREASE EARLY SATURDAY MORNING...WIDESPREAD BLOWING SNOW WILL DEVELOP WITH VISIBILITIES LESS THAN ONE QUARTER MILE AT TIMES THROUGH SATURDAY EVENING. * ACCUMULATIONS...SNOWFALL TOTALS WILL RANGE FROM 2 TO 3 INCHES. * WIND AND VISIBILITY...NORTH TO NORTHWEST WINDS WILL INCREASE TO 25 TO 35 MPH WITH GUSTS UP TO 45 MPH TOWARD DAWN ON SATURDAY. THIS WILL CREATE WIDESPREAD BLOWING SNOW WITH VISIBILITIES LESS THAN ONE QUARTER MILE AT TIMES...ESPECIALLY IN OPEN AREAS. * WIND CHILL VALUES...WIND CHILL VALUES OF 10 BELOW TO 20 BELOW ZERO CAN BE EXPECTED ON SATURDAY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW MEANS THAT VISIBILITIES WILL BE LIMITED DUE TO A COMBINATION OF FALLING AND BLOWING SNOW. USE CAUTION WHEN TRAVELING...ESPECIALLY IN OPEN AREAS. && $$ SDZ038-053-110230- /O.EXA.KFSD.WW.Y.0017.101211T0600Z-101212T0000Z/ BEADLE-SANBORN- INCLUDING THE CITIES OF...HURON...WOONSOCKET 1228 PM CST FRI DEC 10 2010 ...WINTER WEATHER ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 6 PM CST SATURDAY... THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO 6 PM CST SATURDAY. * TIMING...SNOW WILL DEVELOP LATE THIS EVENING AND CONTINUE INTO EARLY SATURDAY MORNING. IN ADDITION...STRONG NORTHWEST WINDS WILL DEVELOP AFTER MIDNIGHT AND CONTINUE THROUGH SATURDAY AFTERNOON PRODUCE WIDESPREAD BLOWING SNOW. * ACCUMULATIONS...SNOWFALL TOTALS OF TWO TO THREE INCHES ARE EXPECTED. * WIND AND VISIBILITY...NORTH TO NORTHWEST WINDS WILL INCREASE TO 20 TO 35 MPH WITH GUSTS OVER 40 MPH AFTER MIDNIGHT. THESE STRONG WINDS WILL CONTINUE ON SATURDAY. THE WINDS WILL CREATE WIDESPREAD BLOWING SNOW WITH VISIBILITIES LESS THAN ONE HALF MILE...ESPECIALLY IN OPEN AREAS. * WIND CHILL VALUES...WIND CHILL VALUES OF 15 BELOW TO 25 BELOW ZERO WILL DEVELOP SATURDAY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW MEANS THAT VISIBILITIES WILL BE LIMITED DUE TO A COMBINATION OF FALLING AND BLOWING SNOW. USE CAUTION WHEN TRAVELING...ESPECIALLY IN OPEN AREAS. && $$ IAZ012-020-031-032-NEZ014-SDZ071-110230- /O.EXT.KFSD.WW.Y.0017.101211T0900Z-101212T0300Z/ SIOUX-PLYMOUTH-WOODBURY-IDA-DAKOTA-UNION- INCLUDING THE CITIES OF...ORANGE CITY...SIOUX CENTER...LE MARS... SIOUX CITY...IDA GROVE...HOLSTEIN...BATTLE CREEK... SOUTH SIOUX CITY...NORTH SIOUX CITY...BERESFORD...ELK POINT... ALCESTER...JEFFERSON 1228 PM CST FRI DEC 10 2010 ...WINTER WEATHER ADVISORY NOW IN EFFECT FROM 3 AM TO 9 PM CST SATURDAY... THE WINTER WEATHER ADVISORY IS NOW IN EFFECT FROM 3 AM TO 9 PM CST SATURDAY. * TIMING...A BRIEF PERIOD OF RAIN WILL BE POSSIBLE THIS EVENING...BUT ANY PRECIPITATION SHOULD QUICKLY CHANGE TO SNOW AFTER 3 AM CST. SNOW WILL CONTINUE INTO EARLY SATURDAY AFTERNOON. BLOWING SNOW IS EXPECTED TO DEVELOP EARLY SATURDAY MORNING AND CONTINUE INTO THE EVENING. * ACCUMULATIONS...SNOWFALL TOTALS OF ONE TO THREE INCHES WILL BE POSSIBLE. * WIND AND VISIBILITY...NORTH TO NORTHWEST WINDS WILL INCREASE TO 25 TO 35 MPH WITH GUSTS TO 45 MPH BY DAWN ON SATURDAY AND CONTINUE INTO SATURDAY EVENING. THIS WILL CREATE WIDESPREAD BLOWING SNOW WITH VISIBILITIES OF A QUARTER MILE OR LESS AT TIMES ON SATURDAY...ESPECIALLY IN OPEN AREAS. * WIND CHILL VALUES...WIND CHILL VALUES OF 10 BELOW TO 20 BELOW ZERO WILL DEVELOP ON SATURDAY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW MEANS THAT VISIBILITIES WILL BE LIMITED DUE TO A COMBINATION OF FALLING AND BLOWING SNOW. USE CAUTION WHEN TRAVELING...ESPECIALLY IN OPEN AREAS. && $$ NEZ013-SDZ070-110230- /O.EXT.KFSD.WW.Y.0017.101211T0600Z-101212T0000Z/ DIXON-CLAY- INCLUDING THE CITIES OF...WAKEFIELD...PONCA...ALLEN...VERMILLION 1228 PM CST FRI DEC 10 2010 ...WINTER WEATHER ADVISORY NOW IN EFFECT FROM MIDNIGHT TONIGHT TO 6 PM CST SATURDAY... THE WINTER WEATHER ADVISORY IS NOW IN EFFECT FROM MIDNIGHT TONIGHT TO 6 PM CST SATURDAY. * TIMING...RAIN WILL BE POSSIBLE THIS EVENING...BUT ANY RAIN SHOULD QUICKLY CHANGE TO SNOW AFTER MIDNIGHT. SNOW WILL LATE SATURDAY MORNING. HOWEVER...AS NORTHWEST WINDS INCREASE EARLY SATURDAY MORNING...BLOWING SNOW IS EXPECTED TO DEVELOP AND CONTINUE THROUGH THE AFTERNOON. * ACCUMULATIONS...SNOWFALL TOTALS OF ONE TO TWO INCHES WILL BE POSSIBLE. * WIND AND VISIBILITY...NORTH TO NORTHWEST WINDS WILL INCREASE TO 25 TO 35 MPH WITH GUSTS OVER 45 MPH EARLY SATURDAY MORNING. THIS WILL CREATE WIDESPREAD BLOWING SNOW WITH VISIBILITIES OF A HALF A MILE OR LESS AT TIMES THROUGH SATURDAY AFTERNOON. * WIND CHILL VALUES...WIND CHILL VALUES OF 10 BELOW TO 15 BELOW ZERO WILL DEVELOP ON SATURDAY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW MEANS THAT VISIBILITIES WILL BE LIMITED DUE TO A COMBINATION OF FALLING AND BLOWING SNOW. USE CAUTION WHEN TRAVELING...ESPECIALLY IN OPEN AREAS. && $$ SDZ039-054-055-061-062-066-067-110230- /O.CON.KFSD.WW.Y.0017.101211T0600Z-101212T0000Z/ KINGSBURY-MINER-LAKE-MCCOOK-MINNEHAHA-TURNER-LINCOLN- INCLUDING THE CITIES OF...DE SMET...ARLINGTON...LAKE PRESTON... HOWARD...MADISON...SALEM...CANISTOTA...BRIDGEWATER...MONTROSE... SIOUX FALLS...PARKER...CENTERVILLE...MARION...VIBORG...HURLEY... CHANCELLOR...CANTON...LENNOX...TEA...HARRISBURG 1228 PM CST FRI DEC 10 2010 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 6 PM CST SATURDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 6 PM CST SATURDAY. * TIMING...A BRIEF PERIOD OF RAIN OR FREEZING RAIN WILL BE POSSIBLE EARLY THIS EVENING...BUT ANY PRECIPITATION SHOULD QUICKLY CHANGE TO SNOW AFTER 1100 PM CST. SNOW WILL CONTINUE INTO LATE SATURDAY MORNING BEFORE ENDING. AS STRONG NORTHWEST WINDS DEVELOP LATE TONIGHT...WIDESPREAD BLOWING SNOW WILL DEVELOP. THIS SNOW IS EXPECTED TO CONTINUE THROUGH SATURDAY AFTERNOON. * ACCUMULATIONS...SNOWFALL TOTALS OF ONE TO FOUR INCHES IS EXPECTED...WITH THE HEAVIEST SNOWFALL IN TH VICINITY OF INTERSTATE 29. * WIND AND VISIBILITY...NORTH TO NORTHWEST WINDS WILL INCREASE TO 20 TO 35 MPH WITH GUSTS OVER 40 MPH LATE TONIGHT INTO SATURDAY. THIS WILL CREATE WIDESPREAD BLOWING SNOW WITH VISIBILITIES OF A HALF A MILE OR LESS AT TIMES...ESPECIALLY IN OPEN AREAS. * WIND CHILL VALUES...WIND CHILL VALUES OF 10 BELOW TO 20 BELOW ZERO WILL DEVELOP ON SATURDAY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW MEANS THAT VISIBILITIES WILL BE LIMITED DUE TO A COMBINATION OF FALLING AND BLOWING SNOW. USE CAUTION WHEN TRAVELING...ESPECIALLY IN OPEN AREAS. && $$ SCHUMACHER
What forecasters said that day
The local office's own words before this blizzard watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Sioux Falls, SD wrote its last area forecast discussion before this blizzard watch went out at Dec 9, 8:37 PM CST, 7 hours 50 minutes earlier.
Area forecast discussion, Dec 9, 8:37 PM CST, 7 hours 50 minutes before
AREA FORECAST DISCUSSION FOR SOUTHEAST SD/SOUTHWEST MN/NORTHWEST IA
NATIONAL WEATHER SERVICE SIOUX FALLS SD
837 PM CST THU DEC 9 2010
DISCUSSION...
CLR ACRS THE CWA ATTM. WEAK BACKDOOR CDFNT MOVG SWD THRU NE SD AND
WCNTRL MN WL PUSH SWD INTO SW MN OVERNIGHT. BAND OF STRATUS ASSOCD
WITH THIS FNT SHUD ALSO SPREAD INTO SW MN AND ECNTRL SD DURING THE
NIGHT AND MAY GET AS FAR S AS FSD BEFORE RETREATING A BIT N AS H925
FLOW BECOMES MORE WSWLY IN THE MORNING. FNT SHUD STALL SOMEWHERE
ACRS NRN CWA ON FRI.
LATEST 00Z NAM FURTHER N WITH SYS FOR FRI NITE AND SAT. TYPICAL NRN
BIAS WITH NAM. IN GENERAL NRN STREAM WAVES DIG FURTHER S...SO FOR
NOW AM DISCOUNTING NAM SOLUTION.
&&
.AVIATION...
GENLY VFR EXPECTED THRU 18Z FRI...XCP FOR SOME CONLY MVFR CIGS ACRS
SW MN AFTER 06Z. VFR WL BECOME MVFR CIG N OF I90 AFTER 20Z.
&&
.PREVIOUS DISCUSSION...
WARM TEMPERATURES TODAY MELTED WRN EDGES OF SNOW PACK AND SHOULD SEE
MORE MELTING FRI..BUT SNOW COVER IN SW MN WILL MAINLY REMAIN IN
TACT. QUIET WEATHER CONDITIONS ACROSS THE AREA TONIGHT. ONE AREA OF
LOW PRESSURE OVER NRN MN/SRN ONTARIO WILL MAKE ITS WAY E ACROSS THE
GREAT LAKES REGION...WHILE SFC LOW PRESSURE WILL SLOWLY DEEPEN OVER
THE NRN ROCKIES. IN BETWEEN THIS SYSTEMS...SKIES WILL BE MOSTLY
CLEAR ALONG WITH LIGHT WINDS. THESE CONDITIONS WILL ALLOW
TEMPERATURES TONIGHT TO RADIATE QUITE WELL. EXPECTING TEENS ACROSS
SNOW COVERED AREA WITH 20S ELSEWHERE. COULD BE SOME PATCHY FOG IN
LOW LYING AREAS. WILL SEE SOME CIRRUS SPREAD INTO THE AREA LATE
TONIGHT...AND MAY SEE SOME STRATUS CURRENTLY OVER NRN ND REACH THE
NRN FRINGES OF THE CWA TOWARD SUNRISE...BUT THAT DEPENDS HOW FAR S A
SFC COLD FRONT WILL MAKE IT. /97
FRI AHEAD OF APPROACHING SYSTEM WILL BRING INCREASING CLOUDS AND
THEREFORE LESS MILD TEMPS THAN TDA AS SUNLIGHT AT ITS LOW DEC ANGLE
GETS BLUNTED...DESPITE TEMPS UPSTAIRS JUST ABOUT AS MILD AS TDA. SYS
BY COMPROMISE OF MODELS PASSES RAPIDLY ESEWD ACROSS AREA FRI NIGHT
AND SIGNALS VERY RAPID CHANGING OF THE WX. AREAS OF LIGHT PCPN
EXPECTED TO DEVELOP FROM THE NW AND ALSO OVER THE SERN CORNER FRI
EVE. MIXED PCPN SHOULD RAPIDLY GO TO SNOW BY AROUND MIDNIGHT...A
LITTLE LATER FAR SOUTHEAST...AND SNOW EXPECTED TO QUICKLY INCREASE
IN COVERAGE AND MORE MODESTLY IN INTENSITY AFTER MIDNIGHT. RAPID
ARRIVAL WILL MEAN ONLY AN INCH OR TWO FOR THE WESTERN FORECAST AREA
BUT AS THE SYSTEM DIGS AND SLOWS DOWN...MORE SIGNIFICANT SNOW SHOULD
SET UP IN THE E...ESPLY IN THE FAR EASTERN REACHES OF OUR MN AND IA
COUNTIES. WITH MID LEVEL FRONT EXPECTED TO SET UP NEAR MN/IA
BORDER...BEST SNOWFALL POTENTIAL WILL BE ALONG THAT FAR EASTERN
EDGE...A LITTLE BETTER IN SWRN MN THAN NWRN IA. THIS BEST SNOWFALL
POTENTIAL WAS DIAGNOSED BY ASSUMING THE NAM AS THE OUTLIER IS TOO
FAR N WITH NOT ENUF DIGGING...AND THAT THE GFS WHILE BETTER ON THIS
RUNS A BIT TOO FAST AS USUAL.
FOR THAT FAR EASTERN EDGE...SNOWFALL POSSIBLY APPROACHING 6 INCHES
IS EXPECTED TO YIELD TO SHARPLY INCREASING WINDS AND PRODUCE BLOWING
SNOW OVER MOST OF THE AREA...QUITE WIDESPREAD FAR EAST. THESE STRONG
WINDS ARE EXPECTED TO BE EVEN A LITTLE STRONGER THAN THE STRONGEST
MODEL WHICH SEEMS TO BE THE NAM ON WINDS...AS PRESSURES SAT WILL BE
INCREASING QUITE RAPIDLY. WITH NEAR BLIZZARD CONDS POSSIBLE...IT WAS
AN EASY DECISION TO GO WITH A WINTER STORM WATCH THO ACCUMULATIONS
ALONE SHOULD STAY JUST BELOW THE HEAVY SNOW CATEGORY. THE VERY RAPID
APPROACH OF THIS SYSTEM WHICH IS STILL COMING IN FROM THE PACIFIC
APPEARS TO MAGNIFY THE POTENTIAL FOR CHANGES SO A WARNING IS
PREMATURE.
SNOW SHOULD TAPER OFF AND END FROM THE W SAT AND SAT
EVENING...LEAVING AN INFLUX OF VERY COLD AIR AND LINGERING
WINDS...WHICH THOUGH SLOWLY DECREASING WILL UNDOUBTEDLY PRODUCE
ADVISORY LEVEL WIND CHILLS OVER THE AREA LATER SAT NIGHT AND SUN
MORNING
A COLD DAY SUNDAY OF COURSE WITH WINDS CONTINUING TO SLIP. A RATHER
BLAND WARM ADVECTION PATTERN...THAT IS WITH NO REAL UPPER SUPPORT...
DEVELOPS SUNDAY NIGHT AND PREVAILS THROUGH AT LEAST MONDAY NIGHT
BEFORE WEAKENING. THIS IS WORTH NO MORE THAN A SLIGHT CHC OF LIGHT
SNOW AS MOISTURE POOLS AT MID LEVELS BUT WITHOUT SUPPORT TO SQUEEZE
VERY MUCH OUT. TEMPS WILL WARM SLOWLY EARLY NEXT WEEK...THEN A
LITTLE STRONGER WED AND THU AS WEAK UPPER RIDGING SPREADS INTO AREA
AND THE WEAKENING WARM ADVECTION PATTERN NOT STRONG ENOUGH FOR
PRECIPITATION MENTION. / WILLIAMS
&&
.FSD WATCHES/WARNINGS/ADVISORIES...
IA...WINTER STORM WATCH FROM LATE FRIDAY NIGHT THROUGH SATURDAY
EVENING FOR IAZ003-014.
MN...WINTER STORM WATCH FROM LATE FRIDAY NIGHT THROUGH SATURDAY
EVENING FOR MNZ072-080-081-090.
NE...NONE.
SD...NONE.
&&Hazardous weather outlook, Dec 9, 5:09 AM CST, 23 hours 18 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE SIOUX FALLS SD 0509 AM CST THU DEC 09 2010 SDZ038>040-050-052>071-MNZ071-072-080-081-089-090-097-098- IAZ001>003-012>014-020>022-031-032-NEZ013-014-101200- AURORA-BEADLE-BON HOMME-BROOKINGS-BRULE-BUENA VISTA IA- CHARLES MIX-CHEROKEE IA-CLAY-CLAY IA-COTTONWOOD MN-DAKOTA NE- DAVISON-DICKINSON IA-DIXON NE-DOUGLAS-GREGORY-HANSON-HUTCHINSON- IDA IA-JACKSON MN-JERAULD-KINGSBURY-LAKE-LINCOLN-LINCOLN MN- LYON IA-LYON MN-MCCOOK-MINER-MINNEHAHA-MOODY-MURRAY MN-NOBLES MN- OBRIEN IA-OSCEOLA IA-PIPESTONE MN-PLYMOUTH IA-ROCK MN-SANBORN- SIOUX IA-TURNER-UNION-WOODBURY IA-YANKTON- 0509 AM CST THU DEC 09 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST SOUTH DAKOTA... SOUTHWEST MINNESOTA...NORTHWEST IOWA...AND NORTHEAST NEBRASKA. .DAY ONE...TODAY AND TONIGHT NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY COOLER AIR WILL SETTLE SOUTHWARD ON FRIDAY AFTERNOON AND EVENING. DURING THE TRANSITION FRIDAY NIGHT...THERE COULD BE A FEW POCKETS OF BRIEF LIGHT FREEZING RAIN OR FREEZING DRIZZLE. LIGHT SNOW WILL ALSO BEGIN TO STREAM EASTWARD INTO AREAS NORTH OF INTERSTATE 90 DURING THE EVENING HOURS...WITH THE AREA SHIFTING SOUTHWARD TOWARD NORTHEAST NEBRASKA...FAR SOUTHEAST SOUTH DAKOTA...NORTHWEST IOWA...AND THE INTERSTATE 90 AREA OF SOUTHWEST MINNESOTA BY EARLY SATURDAY MORNING. SNOW WILL GRADUALLY DECREASE FROM NORTHWEST TO SOUTHEAST DURING THE MORNING AND EARLY AFTERNOON...LEAVING ACCUMULATIONS GENERALLY 1 TO 3 INCHES...BUT PERHAPS 3 TO 4 INCHES FROM AREAS AROUND WINDOM TOWARD SHELDON AND OVER TO SPENCER IOWA. AS WINDS INCREASE ON SATURDAY... AREAS OF BLOWING AND DRIFTING SNOW ARE LIKELY TO DEVELOP...ESPECIALLY FROM AROUND INTERSTATE 29 AND EAST. TEMPERATURES WILL ALSO SLIDE THROUGH THE DAY SATURDAY AND INTO SATURDAY NIGHT...AND COMBINED WITH THE STRONG NORTHERLY WINDS...WIND CHILLS WILL WILL REACH 15 BELOW TO 30 BELOW ZERO ON SATURDAY NIGHT AND SUNDAY MORNING. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY AND TONIGHT. && FOR MORE INFORMATION PLEASE VISIT OUR WEBSITE AT WWW.WEATHER.GOV/SIOUXFALLS. THIS INCLUDES THE GRAPHICAL HAZARDOUS WEATHER OUTLOOK.
The office that day
Everything else NWS Sioux Falls, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 10, 4:27 AM CST | Winter Weather Advisory | FSD | Cherokee, Ida, Lyon, Plymouth, Sioux, Woodbury | 18 hr |
| Dec 10, 12:28 PM CST | Blizzard Warning | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 39 hr |
| Dec 10, 12:28 PM CST | Freezing Rain Advisory | FSD | Cottonwood, Jackson, Lincoln, Lyon, Murray, Nobles and 1 more | 10 hr |
Nearby
Blizzard Watches in Minnesota, 2010Blizzard Watches in Iowa, 2010Every blizzard watch in 2010
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.