Snow Advisory 8, NWS Sioux Falls, SD

000 
WWUS43 KFSD 060408
WSWFSD

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1008 PM CST WED DEC 5 2007

.A QUICK MOVING UPPER AIR DISTURBANCE WILL MOVE THROUGH THE AREA
LATE TONIGHT AND THURSDAY. THIS SYSTEM WILL LIKELY GIVE
ACCUMULATING SNOWFALL TO MUCH OF THIS AREA...WITH THE HEAVIEST
AMOUNTS FROM THE MISSOURI VALLEY INTO NORTHWEST IOWA. THESE AREAS
WILL RECEIVE 3 TO 5 INCHES OF SNOW. IN ADDITION...SOME WARM AIR
ABOVE THE SURFACE WILL MOVE INTO AREAS AROUND THE LOWER BRULE AND
LAKE ANDES AREAS LATE TONIGHT. THEREFORE PRECIPITATION WILL LIKELY
BEGIN AS A MIX OF FREEZING RAIN AND SLEET LATE TONIGHT...BEFORE
CHANGING TO SNOW THROUGH THURSDAY MORNING. THIS WILL RESULT IN A 
POTENTIAL FOR A LIGHT GLAZE ON UNTREATED ROAD SURFACES.

IAZ001-012-020-031-NEZ013-014-SDZ065>071-061215-
/O.CON.KFSD.SN.Y.0008.071206T1200Z-071206T2000Z/
LYON-SIOUX-PLYMOUTH-WOODBURY-DIXON-DAKOTA-HUTCHINSON-TURNER-
LINCOLN-BON HOMME-YANKTON-CLAY-UNION-
INCLUDING THE CITIES OF...ROCK RAPIDS...GEORGE...INWOOD...
LARCHWOOD...ORANGE CITY...SIOUX CENTER...LE MARS...SIOUX CITY...
WAKEFIELD...PONCA...ALLEN...SOUTH SIOUX CITY...PARKSTON...
FREEMAN...MENNO...TRIPP...PARKER...CENTERVILLE...MARION...
VIBORG...HURLEY...CHANCELLOR...CANTON...LENNOX...TEA...
HARRISBURG...TYNDALL...SCOTLAND...SPRINGFIELD...AVON...TABOR...
YANKTON...VERMILLION...NORTH SIOUX CITY...BERESFORD...ELK POINT...
ALCESTER...JEFFERSON
1008 PM CST WED DEC 5 2007

...SNOW ADVISORY REMAINS IN EFFECT FROM 6 AM TO 2 PM CST
THURSDAY...

A SNOW ADVISORY REMAINS IN EFFECT FROM 6 AM TO 2 PM CST THURSDAY.

SNOW IS EXPECTED TO SPREAD INTO THE AREA THURSDAY MORNING...AND
CONTINUE THROUGH MID AFTERNOON BEFORE TAPERING OFF. THREE TO FIVE
INCHES OF SNOW WILL BE COMMON...WITH SOUTH WINDS RATHER BREEZY IN
THE MORNING AT 15 TO 25 MPH.

A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY
TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND
LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING.

$$

IAZ002-003-013-014-021-022-032-061215-
/O.CON.KFSD.SN.Y.0008.071206T1400Z-071206T2300Z/
OSCEOLA-DICKINSON-OBRIEN-CLAY-CHEROKEE-BUENA VISTA-IDA-
INCLUDING THE CITIES OF...SIBLEY...SPIRIT LAKE...MILFORD...
ARNOLDS PARK...SHELDON...HARTLEY...SANBORN...SPENCER...CHEROKEE...
STORM LAKE...IDA GROVE...HOLSTEIN...BATTLE CREEK
1008 PM CST WED DEC 5 2007

...SNOW ADVISORY REMAINS IN EFFECT FROM 8 AM TO 5 PM CST
THURSDAY...

A SNOW ADVISORY REMAINS IN EFFECT FROM 8 AM TO 5 PM CST THURSDAY.

SNOW IS EXPECTED TO SPREAD INTO THE AREA BY MID MORNING THURSDAY...
AND CONTINUE THROUGH THE AFTERNOON. THREE TO FIVE INCHES OF SNOW WILL
BE COMMON...WITH SOUTH WINDS OF 15 TO 20 MPH CREATING SOME BLOWING
SNOW.

A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY
TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND
LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING.

$$

SDZ050-057-058-063-064-061215-
/O.CON.KFSD.WW.Y.0003.071206T0800Z-071206T1800Z/
GREGORY-BRULE-AURORA-CHARLES MIX-DOUGLAS-
INCLUDING THE CITIES OF...GREGORY...BURKE...CHAMBERLAIN...
KIMBALL...PLANKINTON...WHITE LAKE...STICKNEY...WAGNER...PLATTE...
LAKE ANDES...MARTY...ARMOUR...CORSICA...DELMONT
1008 PM CST WED DEC 5 2007

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 2 AM TO 12 PM
CST THURSDAY...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 2 AM TO 12 PM
CST THURSDAY. 

A LAYER OF WARM AIR ABOVE THE SURFACE WILL SPREAD INTO THE AREA LATE
TONIGHT. AS A RESULT...PRECIPITATION IS EXPECTED TO BEGIN AS A MIX
OF FREEZING RAIN AND SLEET LATE TONIGHT. A LIGHT GLAZE OF ICE WILL
FORM ON UNTREATED ROAD SURFACES MAKING DRIVING CONDITIONS VERY
SLIPPERY. AS THURSDAY MORNING PROGRESSES...THE PRECIPITATION WILL
CHANGE OVER TO SNOW...BUT THE ACCUMULATIONS WILL ALSO LIKELY TAPER
OFF TOWARD NOON. ALL TOGETHER...SNOWFALL ACCUMULATIONS WILL BE 1 TO
3 INCHES... WITH THE LOWEST AMOUNTS NEAR I-90 AND HIGHEST AMOUNTS
EXPECTED SOUTHEAST OF LAKE ANDES. ANY ICE ACCUMULATIONS SHOULD
REMAIN LESS THAN A TENTH OF AN INCH.

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...SLEET...OR
FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR
SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE
DRIVING.

$$
 JH

000 
WWUS43 KFSD 061002
WSWFSD

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SIOUX FALLS SD
402 AM CST THU DEC 6 2007

.LOW PRESSURE ALOFT MOVING EAST ACROSS NEBRASKA WILL BRING
ACCUMULATING SNOW TODAY TO SOUTH CENTRAL AND SOUTHEAST SOUTH
DAKOTA...MAINLY NEAR THE SOUTHERN BORDER OF THE STATE...AS WELL AS
NORTHWEST IOWA AND EXTREME NORTHEAST NEBRASKA. PARTS OF THIS AREA
WILL RECEIVE 3 TO 5 INCHES OF SNOW. SOME FREEZING RAIN AND SLEET
IS EXPECTED THIS MORNING OVER SOUTH CENTRAL SOUTH DAKOTA...WITH
ICY CONDITIONS POSSIBLE IN THAT AREA.

PRECIPITATION IS EXPECTED TO DECREASE AND END FROM THE WEST THIS
AFTERNOON AND EARLY THIS EVENING. 


IAZ001-SDZ065>067-061115-
/O.CAN.KFSD.SN.Y.0008.071206T1200Z-071206T2000Z/
LYON-HUTCHINSON-TURNER-LINCOLN-
INCLUDING THE CITIES OF...ROCK RAPIDS...GEORGE...INWOOD...
LARCHWOOD...PARKSTON...FREEMAN...MENNO...TRIPP...PARKER...
CENTERVILLE...MARION...VIBORG...HURLEY...CHANCELLOR...CANTON...
LENNOX...TEA...HARRISBURG
402 AM CST THU DEC 6 2007

...SNOW ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS CANCELLED THE
SNOW ADVISORY. 

OCCASIONAL SNOW IS STILL EXPECTED TO DEVELOP THIS MORNING AND
CONTINUE INTO THIS AFTERNOON. HOWEVER...ACCUMULATIONS ARE NOW
EXPECTED TO BE NO MORE THAN 1 TO 3 INCHES.

$$

IAZ002-003-061115-
/O.CAN.KFSD.SN.Y.0008.071206T1400Z-071206T2300Z/
OSCEOLA-DICKINSON-
INCLUDING THE CITIES OF...SIBLEY...SPIRIT LAKE...MILFORD...
ARNOLDS PARK
402 AM CST THU DEC 6 2007

...SNOW ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS CANCELLED THE
SNOW ADVISORY. 

OCCASIONAL SNOW IS STILL EXPECTED TO DEVELOP THIS MORNING AND
CONTINUE THROUGH THIS AFTERNOON. HOWEVER...ACCUMULATIONS ARE NOW
EXPECTED TO BE NO MORE THAN 1 TO 3 INCHES.

$$

SDZ057-058-064-061115-
/O.CAN.KFSD.WW.Y.0003.000000T0000Z-071206T1800Z/
BRULE-AURORA-DOUGLAS-
INCLUDING THE CITIES OF...CHAMBERLAIN...KIMBALL...PLANKINTON...
WHITE LAKE...STICKNEY...ARMOUR...CORSICA...DELMONT
402 AM CST THU DEC 6 2007

...WINTER WEATHER ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS CANCELLED THE
WINTER WEATHER ADVISORY. 

OCCASIONAL LIGHT SNOW MAY BE MIXED WITH A LITTLE FREEZING RAIN AND
SLEET THIS MORNING. SNOW ACCUMULATIONS SHOULD BE LIMITED TO AN
INCH OR TWO IN THE ARMOUR AREA AND TO LESS THAN AN INCH IN THE
CHAMBERLAIN TO WHITE LAKE AREA.

$$

IAZ012-020-031-NEZ013-014-SDZ068>071-061815-
/O.CON.KFSD.SN.Y.0008.071206T1200Z-071206T2000Z/
SIOUX-PLYMOUTH-WOODBURY-DIXON-DAKOTA-BON HOMME-YANKTON-CLAY-UNION-
INCLUDING THE CITIES OF...ORANGE CITY...SIOUX CENTER...LE MARS...
SIOUX CITY...WAKEFIELD...PONCA...ALLEN...SOUTH SIOUX CITY...
TYNDALL...SCOTLAND...SPRINGFIELD...AVON...TABOR...YANKTON...
VERMILLION...NORTH SIOUX CITY...BERESFORD...ELK POINT...
ALCESTER...JEFFERSON
402 AM CST THU DEC 6 2007

...SNOW ADVISORY REMAINS IN EFFECT UNTIL 2 PM CST THIS
AFTERNOON...

A SNOW ADVISORY REMAINS IN EFFECT UNTIL 2 PM CST THIS AFTERNOON. 

SNOW IS EXPECTED TO INCREASE FROM THE WEST EARLY THIS
MORNING...BECOME STEADY DURING THE LATE MORNING AND EARLY
AFTERNOON PERIOD. SNOW SHOULD THEN DECREASE LATE THIS AFTERNOON.
ACCUMULATIONS OF 3 TO 5 INCHES ARE EXPECTED.

A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY
TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND
LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING.

$$

IAZ013-014-021-022-032-061815-
/O.CON.KFSD.SN.Y.0008.071206T1400Z-071206T2300Z/
OBRIEN-CLAY-CHEROKEE-BUENA VISTA-IDA-
INCLUDING THE CITIES OF...SHELDON...HARTLEY...SANBORN...SPENCER...
CHEROKEE...STORM LAKE...IDA GROVE...HOLSTEIN...BATTLE CREEK
402 AM CST THU DEC 6 2007

...SNOW ADVISORY REMAINS IN EFFECT FROM 8 AM THIS MORNING TO 5 PM
CST THIS AFTERNOON...

A SNOW ADVISORY REMAINS IN EFFECT FROM 8 AM THIS MORNING TO 5 PM
CST THIS AFTERNOON. 

SNOW IS EXPECTED TO SPREAD INTO THE AREA BY MID MORNING
TODAY...AND CONTINUE THROUGH THIS AFTERNOON. SNOW SHOULD END
QUICKLY EARLY THIS EVENING. ACCUMULATIONS OF 3 TO 5 INCHES ARE
EXPECTED.

A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY
TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND
LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING.

$$

SDZ050-063-061800-
/O.CON.KFSD.WW.Y.0003.000000T0000Z-071206T1800Z/
GREGORY-CHARLES MIX-
INCLUDING THE CITIES OF...GREGORY...BURKE...WAGNER...PLATTE...
LAKE ANDES...MARTY
402 AM CST THU DEC 6 2007

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON CST
TODAY...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON CST TODAY.

A MIXTURE OF SLEET...FREEZING RAIN...AND SNOW EARLY THIS MORNING
SHOULD BECOME ALL SNOW DURING THE MORNING. SNOW IS EXPECTED TO END
AROUND NOON. ICING IS POSSIBLE ON UNTREATED ROAD SURFACES MAKING
DRIVING CONDITIONS VERY SLIPPERY. SNOW ACCUMULATIONS SHOULD BE IN
THE 1 TO 3 INCH RANGE...WITH THE HIGHER AMOUNTS ALONG THE SOUTHERN
BORDER OF SOUTH DAKOTA.

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...SLEET...OR
FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR
SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE
DRIVING.

$$
WILLIAMS

000 
WWUS43 KFSD 061232
WSWFSD

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SIOUX FALLS SD
632 AM CST THU DEC 6 2007

.LOW PRESSURE ALOFT MOVING EAST ACROSS NEBRASKA WILL BRING
ACCUMULATING SNOW TODAY TO EXTREME SOUTHEAST SOUTH
DAKOTA...MAINLY NEAR THE SOUTHERN BORDER OF THE STATE...AS WELL AS
SOUTHERN PARTS OF NORTHWEST IOWA AND EXTREME NORTHEAST NEBRASKA.
PARTS OF THIS AREA WILL RECEIVE 3 TO 5 INCHES OF SNOW. SOME OF THE
SNOW MAY BRIEFLY MIX WITH SLEET EARLY THIS MORNING.

PRECIPITATION IS EXPECTED TO DECREASE AND END FROM THE WEST THIS
AFTERNOON AND EARLY THIS EVENING.

SDZ050-063-061345-
/O.CAN.KFSD.WW.Y.0003.000000T0000Z-071206T1800Z/
GREGORY-CHARLES MIX-
INCLUDING THE CITIES OF...GREGORY...BURKE...WAGNER...PLATTE...
LAKE ANDES...MARTY
632 AM CST THU DEC 6 2007

...WINTER WEATHER ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS CANCELLED THE
WINTER WEATHER ADVISORY. 

WHILE SCATTERED SNOW SHOWERS WILL REMAIN POSSIBLE
TODAY...ACCUMULATING SNOW WILL REMAIN SOUTH OF THE AREA.

$$

IAZ012-020-031-NEZ013-014-SDZ068>071-062000-
/O.CON.KFSD.SN.Y.0008.000000T0000Z-071206T2000Z/
SIOUX-PLYMOUTH-WOODBURY-DIXON-DAKOTA-BON HOMME-YANKTON-CLAY-UNION-
INCLUDING THE CITIES OF...ORANGE CITY...SIOUX CENTER...LE MARS...
SIOUX CITY...WAKEFIELD...PONCA...ALLEN...SOUTH SIOUX CITY...
TYNDALL...SCOTLAND...SPRINGFIELD...AVON...TABOR...YANKTON...
VERMILLION...NORTH SIOUX CITY...BERESFORD...ELK POINT...
ALCESTER...JEFFERSON
632 AM CST THU DEC 6 2007

...SNOW ADVISORY REMAINS IN EFFECT UNTIL 2 PM CST THIS
AFTERNOON...

A SNOW ADVISORY REMAINS IN EFFECT UNTIL 2 PM CST THIS AFTERNOON. 

SNOW IS EXPECTED TO INCREASE FROM THE WEST EARLY THIS MORNING...
BECOME STEADY DURING THE LATE MORNING AND EARLY AFTERNOON PERIOD.
SNOW SHOULD THEN DECREASE LATE THIS AFTERNOON. ACCUMULATIONS OF
3 TO 5 INCHES ARE EXPECTED.

A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY
TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND
LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING.

$$

IAZ013-014-021-022-032-062045-
/O.CON.KFSD.SN.Y.0008.071206T1400Z-071206T2300Z/
OBRIEN-CLAY-CHEROKEE-BUENA VISTA-IDA-
INCLUDING THE CITIES OF...SHELDON...HARTLEY...SANBORN...SPENCER...
CHEROKEE...STORM LAKE...IDA GROVE...HOLSTEIN...BATTLE CREEK
632 AM CST THU DEC 6 2007

...SNOW ADVISORY REMAINS IN EFFECT UNTIL 5 PM CST THIS
AFTERNOON...

A SNOW ADVISORY REMAINS IN EFFECT UNTIL 5 PM CST THIS AFTERNOON. 

SNOW IS EXPECTED TO SPREAD INTO THE AREA BY MID MORNING TODAY...
AND CONTINUE THROUGH THIS AFTERNOON. SNOW SHOULD END QUICKLY
EARLY THIS EVENING. ACCUMULATIONS OF 3 TO 5 INCHES ARE
EXPECTED...ESPECIALLY NEAR IDA GROVE AND STORM LAKE.

A SNOW ADVISORY 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 KFSD 061633
WSWFSD

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1033 AM CST THU DEC 6 2007

.LOW PRESSURE ALOFT MOVING EAST ACROSS NEBRASKA WILL BRING
ACCUMULATING SNOW TODAY TO EXTREME SOUTHEAST SOUTH DAKOTA...
MAINLY NEAR THE SOUTHERN BORDER OF THE STATE...AS WELL AS
SOUTHERN PARTS OF NORTHWEST IOWA AND EXTREME NORTHEAST NEBRASKA.
PARTS OF THIS AREA WILL RECEIVE 3 TO 5 INCHES OF SNOW. SOME OF
THE SNOW MAY BRIEFLY MIX WITH SLEET EARLY THIS MORNING.

PRECIPITATION IS EXPECTED TO DECREASE AND END FROM THE WEST THIS
AFTERNOON AND EARLY THIS EVENING.

SDZ068>070-061745-
/O.CAN.KFSD.SN.Y.0008.000000T0000Z-071206T2000Z/
BON HOMME-YANKTON-CLAY-
INCLUDING THE CITIES OF...TYNDALL...SCOTLAND...SPRINGFIELD...
AVON...TABOR...YANKTON...VERMILLION
1033 AM CST THU DEC 6 2007

...SNOW ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS CANCELLED THE
SNOW ADVISORY. 

LIGHT SNOW WILL RAPIDLY COME TO AN END THIS MORNING. LITTLE TO NO
ADDITIONAL SNOW ACCUMULATION IS ANTICIPATED...THEREFORE THE SNOW ADVISORY
HAS BEEN CANCELLED.

$$

IAZ012-020-031-NEZ013-014-SDZ071-062000-
/O.CON.KFSD.SN.Y.0008.000000T0000Z-071206T2000Z/
SIOUX-PLYMOUTH-WOODBURY-DIXON-DAKOTA-UNION-
INCLUDING THE CITIES OF...ORANGE CITY...SIOUX CENTER...LE MARS...
SIOUX CITY...WAKEFIELD...PONCA...ALLEN...SOUTH SIOUX CITY...
NORTH SIOUX CITY...BERESFORD...ELK POINT...ALCESTER...JEFFERSON
1033 AM CST THU DEC 6 2007

...SNOW ADVISORY REMAINS IN EFFECT UNTIL 2 PM CST THIS
AFTERNOON...

A SNOW ADVISORY REMAINS IN EFFECT UNTIL 2 PM CST THIS AFTERNOON. 

SNOW WILL CONTINUE INTO THE EARLY AFTERNOON BEFORE QUICKLY ENDING
EARLY THIS AFTERNOON. SNOW MAY BE HEAVY AT TIMES AND SOUTHERLY
WINDS OF 15 TO 25 MPH WILL REDUCE VISIBILITIES TO LESS THAN ONE
HALF MILE. WEATHER CONDITIONS WILL RAPIDLY IMPROVE BY MID
AFTERNOON...AS SNOW COMES TO AN END AND WINDS DIMINISH. TOTAL SNOW 
ACCUMULATIONS OF 3 TO 5 INCHES ARE EXPECTED.

A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY
TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND
LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING.

$$

IAZ013-014-021-022-032-062300-
/O.CON.KFSD.SN.Y.0008.000000T0000Z-071206T2300Z/
OBRIEN-CLAY-CHEROKEE-BUENA VISTA-IDA-
INCLUDING THE CITIES OF...SHELDON...HARTLEY...SANBORN...SPENCER...
CHEROKEE...STORM LAKE...IDA GROVE...HOLSTEIN...BATTLE CREEK
1033 AM CST THU DEC 6 2007

...SNOW ADVISORY REMAINS IN EFFECT UNTIL 5 PM CST THIS
AFTERNOON...

A SNOW ADVISORY REMAINS IN EFFECT UNTIL 5 PM CST THIS AFTERNOON. 

SNOW WILL CONTINUE INTO THROUGH MID AFTERNOON THEN QUICKLY ENDING
LATE THIS AFTERNOON. SNOW MAY BE HEAVY AT TIMES ACROSS BUENA
VISTA...CHEROKEE...AND IDA COUNTIES. SNOW IN COMBINATION WITH
SOUTHERLY WINDS OF 15 TO 25 MPH WILL REDUCE VISIBILITIES TO LESS
THAN ONE HALF MILE AT TIMES. WEATHER CONDITIONS WILL RAPIDLY
IMPROVE LATE THIS AFTERNOON...AS SNOW COMES TO AN END AND WINDS
DIMINISH. ACCUMULATIONS OF 3 TO 5 INCHES ARE EXPECTED...
ESPECIALLY NEAR IDA GROVE...STORM LAKE...AND CHEROKEE. LESSER
ACCUMULATIONS OF 1 TO 3 INCHES ARE EXPECTED INTO OBRIEN AND CLAY
COUNTIES.

A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY
TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND
LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING.

$$
LIEBL

000 
WWUS43 KFSD 061958
WSWFSD

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SIOUX FALLS SD
158 PM CST THU DEC 6 2007

.ACCUMULATING SNOW WILL END ACROSS THE AREA BY LATE THIS AFTERNOON
AS LOW PRESSURE MOVES EAST. 

IAZ012-020-031-NEZ013-014-SDZ071-062100-
/O.EXP.KFSD.SN.Y.0008.000000T0000Z-071206T2000Z/
SIOUX-PLYMOUTH-WOODBURY-DIXON-DAKOTA-UNION-
INCLUDING THE CITIES OF...ORANGE CITY...SIOUX CENTER...LE MARS...
SIOUX CITY...WAKEFIELD...PONCA...ALLEN...SOUTH SIOUX CITY...
NORTH SIOUX CITY...BERESFORD...ELK POINT...ALCESTER...JEFFERSON
158 PM CST THU DEC 6 2007

...SNOW ADVISORY WILL EXPIRE AT 2 PM CST THIS AFTERNOON...

THE SNOW ADVISORY WILL EXPIRE AT 2 PM CST THIS AFTERNOON. 

SNOW WILL RAPIDLY END ACROSS THE AREA OVER THE NEXT FEW HOURS. ONLY
MINIMAL ADDITIONAL SNOW ACCUMULATIONS ARE EXPECTED IN PLYMOUTH AND
WOODBURY COUNTIES.

$$

IAZ013-014-021-022-032-062300-
/O.CON.KFSD.SN.Y.0008.000000T0000Z-071206T2300Z/
OBRIEN-CLAY-CHEROKEE-BUENA VISTA-IDA-
INCLUDING THE CITIES OF...SHELDON...HARTLEY...SANBORN...SPENCER...
CHEROKEE...STORM LAKE...IDA GROVE...HOLSTEIN...BATTLE CREEK
158 PM CST THU DEC 6 2007

...SNOW ADVISORY REMAINS IN EFFECT UNTIL 5 PM CST THIS
AFTERNOON...

A SNOW ADVISORY REMAINS IN EFFECT UNTIL 5 PM CST THIS AFTERNOON. 

SNOW WILL CONTINUE INTO THROUGH MID AFTERNOON THEN QUICKLY ENDING
LATE THIS AFTERNOON. SNOW MAY BE HEAVY AT TIMES ACROSS BUENA
VISTA...CHEROKEE...AND IDA COUNTIES. SNOW IN COMBINATION WITH
SOUTHERLY WINDS OF 15 TO 25 MPH MAY REDUCE VISIBILITIES TO LESS THAN
ONE HALF MILE AT TIMES. TOTAL SNOW ACCUMULATIONS OF 3 TO 5 INCHES
ARE EXPECTED... ESPECIALLY NEAR IDA GROVE...STORM LAKE...AND
CHEROKEE. LESSER ACCUMULATIONS OF 1 TO 3 INCHES ARE EXPECTED INTO
OBRIEN AND CLAY COUNTIES. WEATHER CONDITIONS WILL RAPIDLY IMPROVE
LATE THIS AFTERNOON...AS SNOW ENDS AND WINDS DIMINISH. 

A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY
TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND
LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING.

$$
LIEBL

000 
WWUS43 KFSD 062257
WSWFSD

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SIOUX FALLS SD
457 PM CST THU DEC 6 2007

IAZ013-014-021-022-032-070000-
/O.EXP.KFSD.SN.Y.0008.000000T0000Z-071206T2300Z/
OBRIEN-CLAY-CHEROKEE-BUENA VISTA-IDA-
INCLUDING THE CITIES OF...SHELDON...HARTLEY...SANBORN...SPENCER...
CHEROKEE...STORM LAKE...IDA GROVE...HOLSTEIN...BATTLE CREEK
457 PM CST THU DEC 6 2007

...SNOW ADVISORY WILL EXPIRE AT 5 PM CST THIS AFTERNOON...

THE SNOW ADVISORY WILL EXPIRE AT 5 PM CST THIS AFTERNOON. 

SCATTERED FLURRIES WILL CONTINUE SOUTHEAST OF LINE FROM SPENCER TO
HOLSTEIN INTO THE EVENING. LITTLE IF ANY ADDITIONAL SNOW ACCUMULATION
IS EXPECTED.

$$
 JH

AREA FORECAST DISCUSSION FOR SOUTHEAST SD/SOUTHWEST MN/NORTHWEST IA
NATIONAL WEATHER SERVICE SIOUX FALLS SD ...UPDATED AVN SECTION
1145 AM CST WED DEC 5 2007

.DISCUSSION...
HAVE JUST SENT AN UPDATE TO THE GRIDS AND WL DO THE ZFP SHORTLY.
STRATUS MAY BE VERY STUBBORN TO LEAVE OUR MO VALLEY AREA THIS AFTN
ALONG THE BAROCLINIC ZONE JUST ABOVE THE SFC. AM THINKING THAT KSUX
AND KYKN WL BE ON THE EDGE OF THE STRATUS THRU THE AFTN HRS...
HOWEVER MUCH OF CHARLES MIX AND GREGORY COUNTIES COULD HAVE
DIFFICULTY CLEARING OUT. TEMPS REALLY PLUMMETED AT 14Z AND 15Z THIS
MORNING WHERE THE SKY COVER DID CLEAR OUT. HOWEVER GOING HIGHS TODAY
DO NOT LOOK TOO BAD AS MANY HIGH TEMPS WL BE REACHED EARLY THIS
EVENING THRU THIS AREA WHEN THE WAA BEGINS TO KICK IN...THEN WL
PROBABLY JUST KEEP GOING UP FROM THERE. SO WL NOT BE GOING DIURNAL
TEMPS FOR TONIGHT...BUT WL HAVE EVENING LOWS...THEN SLOWLY RISING
TEMPS.

&&

.AVIATION...
THE KSUX TAF IS QUITE A CHALLENGE. THE MVFR STRATUS HAS HIT A BRICK
WALL IN ITS SWD PROGRESSION...BUMPING UP AGAINST A BAROCLINIC ZONE
JUST ABOVE THE SFC. ONE CAN SEE SOME THINNING IN THE STRATUS CLOUDS
IN THAT AREA...SO WOULD NOT BE SURPRISED TO SEE SOME CLEARING FOR
KSUX AS THE AFTERNOON PROGRESSES...BUT THEY MAY NOT TOTALLY BREAK
OUT. THEN EARLY THIS EVENING...THE WINDS JUST ABOVE THE SFC BEGIN TO
GO SOUTHERLY AGAIN. SO WHAT THIS COULD LIKELY DO...IS ADVECT ANY
MVFR STRATUS THAT MAY LINGER TO THE SOUTH...AND PUSH IT BACK INTO
THE KSUX SITE BY EARLY EVENING. THAT IS WHAT THE TAF IS BASED ON. WL
JUST HAVE TO MONITOR THESE TRENDS CLOSELY.

THEN LATE TONIGHT AND THU MORNING...WE ARE DEALING WITH ANOTHER
UPPER AIR DISTURBANCE MOVG QUICKLY THRU THIS AREA. THIS SYSTEM WILL
SPREAD PCPN TO THE TAF SITES...WITH KHON LIKELY RECEIVING MIXED PCPN
DUE TO WARM AIR ABOVE THE SFC. SO EXPECT IFR CIGS AND VIS LATE
TONIGHT AND THU MORNING UNTIL THIS SYSTEM PASSES THRU.

&&

.PREV DISCUSSION...
STRONG CAA CONTINUING INTO THE REGION THIS MORNING WITH LEADING EDGE
OF COLD FRONT NOW WELL INTO THE CENTRAL PLAINS. TEMPERATURES HAVE
BEEN PLUNGING OVER OUR AREA THROUGH THE VERY EARLY MORNING
HOURS...AND COULD ACTUALLY SEE TEMPERATURES CONTINUING TO DROP OFF
THROUGH 15Z IN SOME PLACES. WITH SURFACE HIGH PRESSURE DROPPING
SOUTHWARD INTO THE NORTHERN PLAINS TODAY...SHOULD BE A PRETTY DECENT
DAY...ALBEIT VERY COLD...IN THE TEENS TO LOWER 20S. CURRENT
SATELLITE IMAGE SHOWING CLEARING SKIES TO OUR NORTH WITH DRIER AIR
BEING ADVECTED INTO THE REGION...AND WOULD EXPECT THIS TREND TO
CONTINUE THROUGH THE DAY WITH MOSTLY CLOUDY CONDITIONS EARLY GIVING
WAY TO PARTLY CLOUDY SKIES LATER ON.

AS HAS BEEN ADVERTISED OF LATE...BAROCLINIC ZONE OVER WESTERN SOUTH
DAKOTA BEGINS TO PUSH BACK TO THE EAST TONIGHT...AND WITH SOME MID
LEVEL WAA AND ISENTROPIC LIFT WILL SEE A SMALL CHANCE OF POPS
ENTERING OUR WESTERN ZONES AFTER 00Z. A MORE SIGNIFICANT FEATURE...A
SHORTWAVE MOVING OUT OF THE CENTRAL ROCKIES...WILL BEGIN TO IMPACT
OUR SOUTHWESTERN ZONES AFTER 06Z TONIGHT. WHILE ANY PRECIPITATION
THAT OCCURS OVER THE CWA EARLY IN THE NIGHT SHOULD BE IN THE FORM OF
SNOW...THERMAL PROFILES SUGGEST TEMPERATURES RISING ABOVE FREEZING
IN A LAYER ROUGHLY BETWEEN 825 TO 925 MB IN OUR WEST AFTER
09Z...THUS MIXED PRECIPITATION WOULD BE AN ISSUE AT THAT POINT. WITH
WARMER AIR ADVECTING INTO THE REGION...WILL SEE LOW TEMPERATURES
OCCURRING EARLY IN THE EVENING...THEN RISING OVERNIGHT.

WITH A NICE AREA OF DIV Q AND THETA E ADVECTION ACROSS OUR SOUTH ON
THURSDAY IN ASSOCIATION WITH AFOREMENTIONED
SHORTWAVE...PRECIPITATION WILL BE LIKELY IN THE SOUTHERN HALF OF THE
CWA. WHILE MIXED PRECIPITATION WILL BE A POSSIBILITY IN THE WEST
EARLY IN THE DAY...AS COLDER AIR IS PULLED INTO THE REGION BEHIND
THE SYSTEM...PRECIPITATION SHOULD BECOME PRIMARILY SNOW OVER THE
MAJORITY OF THE FA BY AFTERNOON. WITH THIS SCENARIO IN
MIND...APPEARS THAT THE SOUTHEASTERN THIRD OF THE CWA COULD SEE 2 TO
4 INCHES OF SNOWFALL AFTER ALL IS SAID AND DONE ON THURSDAY EVENING.

FRIDAY LOOKS TO BE DRY AND COLDER WITH A SURFACE HIGH BUILDING BACK
INTO THE AREA. STILL ON TRACK WITH A POSSIBLE SNOW STORM ON
SATURDAY...THOUGH DID NOT MAKE A LOT OF CHANGES FROM PREVIOUS
FORECAST WITH UNCERTAINTY DUE TO MODELS BEING SPLIT ON THE NORTHERN
EXTENT OF THE STORM.

&&

.FSD WATCHES/WARNINGS/ADVISORIES...
SD...NONE.
MN...NONE.
IA...NONE.
NE...NONE.

&&

UPDATE...MJF
JM/08

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SIOUX FALLS SD
0541 AM CST WED DEC 05 2007

SDZ038>040-050-052>071-MNZ071-072-080-081-089-090-097-098-
IAZ001>003-012>014-020>022-031-032-NEZ013-014-061200-
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-
0541 AM CST WED DEC 05 2007

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST SOUTH DAKOTA...
SOUTHWEST MINNESOTA...NORTHWEST IOWA...AND NORTHEAST NEBRASKA.

.DAY ONE...TODAY AND TONIGHT

WINTER WEATHER...

LIGHT SNOW MAY DEVELOP OVER CENTRAL SOUTH DAKOTA THIS
EVENING...AND THEN EXPAND EASTWARD DURING THE OVERNIGHT HOURS. AS
WARMER PUSHES IN ALOFT...ANY PRECIPITATION THAT OCCURS WILL FALL
AS FREEZING RAIN AND SLEET THROUGH THE JAMES RIVER VALLEY BY
LATER IN THE NIGHT.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

PRECIPITATION WILL BECOME LIKELY IN AREAS SOUTH OF INTERSTATE 90
ON THURSDAY. ANY MIXED PRECIPITATION THAT IS OCCURRING ON
THURSDAY MORNING WILL CHANGE TO ALL SNOW BY AFTERNOON AS COLDER
AIR MOVES INTO THE REGION. AREAS SOUTH OF A LINE RUNNING ROUGHLY
FROM ARMOUR TO CANTON TO JACKSON MINNESOTA COULD RECEIVE 2 TO 4
INCHES OF SNOWFALL BY THURSDAY EVENING...WITH LESSER AMOUNTS TO
THE NORTH OF THIS LINE.

THERE IS THE CHANCE OF ACCUMULATING SNOW DEVELOPING NEAR THE
MISSOURI RIVER LATER FRIDAY NIGHT...THEN SPREADING NORTHEAST OVER
THE AREA SATURDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY AND TONIGHT.

&&

FOR MORE INFORMATION PLEASE VISIT OUR WEBSITE AT
WWW.CRH.NOAA.GOV/FSD. THIS INCLUDES THE GRAPHICAL HAZARDOUS
WEATHER OUTLOOK.