Alert archive / South Dakota / Blizzard Watches in 2016

Blizzard Watch 3, NWS Sioux Falls, SD

November 16, 20167 counties in South Dakota; Lincoln County, Lyon County, Minnesota

NWS Sioux Falls, SD issued this blizzard watch at Nov 16, 2016, 3:33 AM CST for 7 counties in South Dakota; Lincoln County, Lyon County, Minnesota. It took effect at Nov 18, 2016, 3:00 AM CST. It was in force for .

The area

The counties it named.

The facts

Issued
Nov 16, 2016, 3:33 AM CST (09:33 UTC)
In effect from
Nov 18, 2016, 3:00 AM CST
Expired
Nov 17, 2016, 3:34 AM CST
In force
Issued by
NWS Sioux Falls, SD

Counties Lincoln County, MN, Lyon County, MN, Beadle County, SD, Brookings County, SD, Jerauld County, SD, Kingsbury County, SD, Lake County, SD, Miner County, SD, Sanborn County, SD

The nearest sounding before it

Aberdeen, SD (KABR), launched 00:00Z, 9.6 hours before the alert went out and 111 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.

Skew-T log-pSkew-T log-p diagram, Aberdeen, SD at 00:00Z on 2016-11-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Aberdeen, SD at 00:00Z on 2016-11-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -36 square meters per square second.1939587897117136Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2203 m above ground
0-6 km bulk shear
70 kt
0-1 km storm-relative helicity
-36 m²/s²
0-3 km storm-relative helicity
57 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

164 
WWUS43 KFSD 160933
WSWFSD

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SIOUX FALLS SD
333 AM CST WED NOV 16 2016

MNZ071-072-SDZ039-040-161745-
/O.NEW.KFSD.BZ.A.0003.161118T0900Z-161119T0300Z/
LINCOLN MN-LYON MN-KINGSBURY-BROOKINGS-
INCLUDING THE CITIES OF...TYLER...HENDRICKS...LAKE BENTON...
IVANHOE...MARSHALL...DE SMET...ARLINGTON...LAKE PRESTON...
BROOKINGS
333 AM CST WED NOV 16 2016

...BLIZZARD WATCH IN EFFECT FROM LATE THURSDAY NIGHT THROUGH
FRIDAY EVENING...

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A BLIZZARD
WATCH...WHICH IS IN EFFECT FROM LATE THURSDAY NIGHT THROUGH
FRIDAY EVENING. 

* TIMING...RAIN WILL QUICKLY CHANGE TO SNOW LATE THURSDAY NIGHT
  AND BECOME HEAVY AT TIMES THROUGH FRIDAY AFTERNOON. A VERY
  STRONG NORTH TO NORTHWEST WIND WILL DEVELOP DURING THIS TIME AS
  WELL.

* ACCUMULATIONS...STORM TOTAL SNOWFALL ACCUMULATIONS OF 6 TO 9
  INCHES POSSIBLE.

* WIND AND VISIBILITY...NORTH TO NORTHWEST WINDS OF 30 TO 50 MPH
  WILL BE POSSIBLE. THIS WOULD GREATLY REDUCE THE VISIBILITY AND
  BRING WHITEOUT CONDITIONS.

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.

&&

$$

IAZ001-MNZ080-089-097-098-SDZ038-053>056-060>062-066-067-161745-
/O.NEW.KFSD.WS.A.0003.161118T0900Z-161119T0300Z/
LYON IA-MURRAY-NOBLES-PIPESTONE-ROCK-BEADLE-SANBORN-MINER-LAKE-
MOODY-HANSON-MCCOOK-MINNEHAHA-TURNER-LINCOLN SD-
INCLUDING THE CITIES OF...ROCK RAPIDS...GEORGE...INWOOD...
LARCHWOOD...SLAYTON...FULDA...WORTHINGTON...PIPESTONE...LUVERNE...
HURON...WOONSOCKET...HOWARD...MADISON...ORLAND...FLANDREAU...
ALEXANDRIA...EMERY...SALEM...CANISTOTA...BRIDGEWATER...MONTROSE...
SIOUX FALLS...PARKER...CENTERVILLE...MARION...VIBORG...IRENE...
HURLEY...CHANCELLOR...CANTON...LENNOX...TEA...HARRISBURG
333 AM CST WED NOV 16 2016

...WINTER STORM WATCH IN EFFECT FROM LATE THURSDAY NIGHT THROUGH
FRIDAY EVENING...

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A WINTER
STORM WATCH...WHICH IS IN EFFECT FROM LATE THURSDAY NIGHT THROUGH
FRIDAY EVENING. 

* TIMING...RAIN WILL QUICKLY CHANGE TO SNOW LATE THURSDAY NIGHT
  AND BECOME HEAVY AT TIMES THROUGH FRIDAY AFTERNOON. A VERY
  STRONG NORTH TO NORTHWEST WIND WILL DEVELOP DURING THIS TIME AS
  WELL.

* ACCUMULATIONS...STORM TOTAL SNOWFALL ACCUMULATIONS OF 4 TO 7
  INCHES POSSIBLE.

* WIND AND VISIBILITY...NORTH TO NORTHWEST WINDS OF 30 TO 45 MPH
  WILL BE POSSIBLE. THIS WOULD REDUCE THE VISIBILITY TO A QUARTER
  MILE OR LESS AT TIMES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR SIGNIFICANT
SNOW...SLEET...OR ICE ACCUMULATIONS THAT MAY IMPACT TRAVEL.
CONTINUE TO MONITOR THE LATEST FORECASTS.

&&

$$
4 follow-up statements
676 
WWUS43 KFSD 161709
WSWFSD

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1109 AM CST WED NOV 16 2016

SDZ050-052-057>059-063>065-068-170115-
/O.EXA.KFSD.WS.A.0003.161118T0900Z-161119T0300Z/
GREGORY-JERAULD-BRULE-AURORA-DAVISON-CHARLES MIX-DOUGLAS-
HUTCHINSON-BON HOMME-
INCLUDING THE CITIES OF...GREGORY...BURKE...WESSINGTON SPRINGS...
ALPENA...CHAMBERLAIN...KIMBALL...PLANKINTON...WHITE LAKE...
STICKNEY...MITCHELL...WAGNER...PLATTE...LAKE ANDES...MARTY...
ARMOUR...CORSICA...DELMONT...PARKSTON...FREEMAN...MENNO...TRIPP...
CLAYTON...TYNDALL...SCOTLAND...SPRINGFIELD...AVON...TABOR
1109 AM CST WED NOV 16 2016

...WINTER STORM WATCH IN EFFECT FROM LATE THURSDAY NIGHT THROUGH
FRIDAY EVENING...

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A WINTER
STORM WATCH...WHICH IS IN EFFECT FROM LATE THURSDAY NIGHT THROUGH
FRIDAY EVENING. 

* TIMING...RAIN WILL QUICKLY CHANGE TO SNOW LATE THURSDAY NIGHT 
  AND BECOME HEAVY AT TIMES THROUGH FRIDAY AFTERNOON. A VERY 
  STRONG NORTH TO NORTHWEST WIND WILL DEVELOP DURING THIS TIME 
  AS WELL. 

* ACCUMULATIONS...STORM TOTAL SNOWFALL ACCUMULATIONS OF OVER 3
  INCHES ARE EXPECTED.

* WIND AND VISIBILITY...NORTH TO NORTHWEST WINDS OF 30 TO 45 MPH 
  WILL BE POSSIBLE. THIS WOULD REDUCE THE VISIBILITY TO A 
  QUARTER MILE OR LESS AT TIMES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR SIGNIFICANT
SNOW...SLEET...OR ICE ACCUMULATIONS THAT MAY IMPACT TRAVEL.
CONTINUE TO MONITOR THE LATEST FORECASTS.

&&

$$

MNZ071-072-SDZ039-040-170115-
/O.CON.KFSD.BZ.A.0003.161118T0900Z-161119T0300Z/
LINCOLN MN-LYON MN-KINGSBURY-BROOKINGS-
INCLUDING THE CITIES OF...TYLER...HENDRICKS...LAKE BENTON...
IVANHOE...MARSHALL...DE SMET...ARLINGTON...LAKE PRESTON...
BROOKINGS
1109 AM CST WED NOV 16 2016

...BLIZZARD WATCH REMAINS IN EFFECT FROM LATE THURSDAY NIGHT
THROUGH FRIDAY EVENING...

* TIMING...RAIN WILL QUICKLY CHANGE TO SNOW LATE THURSDAY NIGHT 
  AND BECOME HEAVY AT TIMES THROUGH FRIDAY AFTERNOON. A VERY 
  STRONG NORTH TO NORTHWEST WIND WILL DEVELOP DURING THIS TIME 
  AS WELL. 

* ACCUMULATIONS...STORM TOTAL SNOWFALL ACCUMULATIONS OF 6 TO 9 
  INCHES POSSIBLE. 

* WIND AND VISIBILITY...NORTH TO NORTHWEST WINDS OF 30 TO 50 MPH 
  WILL BE POSSIBLE. THIS WOULD GREATLY REDUCE THE VISIBILITY AND 
  BRING WHITEOUT CONDITIONS. 

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.

&&

$$

IAZ001-MNZ080-089-097-098-SDZ038-053>056-060>062-066-067-170115-
/O.CON.KFSD.WS.A.0003.161118T0900Z-161119T0300Z/
LYON IA-MURRAY-NOBLES-PIPESTONE-ROCK-BEADLE-SANBORN-MINER-LAKE-
MOODY-HANSON-MCCOOK-MINNEHAHA-TURNER-LINCOLN SD-
INCLUDING THE CITIES OF...ROCK RAPIDS...GEORGE...INWOOD...
LARCHWOOD...SLAYTON...FULDA...WORTHINGTON...PIPESTONE...LUVERNE...
HURON...WOONSOCKET...HOWARD...MADISON...ORLAND...FLANDREAU...
ALEXANDRIA...EMERY...SALEM...CANISTOTA...BRIDGEWATER...MONTROSE...
SIOUX FALLS...PARKER...CENTERVILLE...MARION...VIBORG...IRENE...
HURLEY...CHANCELLOR...CANTON...LENNOX...TEA...HARRISBURG
1109 AM CST WED NOV 16 2016

...WINTER STORM WATCH REMAINS IN EFFECT FROM LATE THURSDAY NIGHT
THROUGH FRIDAY EVENING...

* TIMING...RAIN WILL QUICKLY CHANGE TO SNOW LATE THURSDAY NIGHT 
  AND BECOME HEAVY AT TIMES THROUGH FRIDAY AFTERNOON. A VERY 
  STRONG NORTH TO NORTHWEST WIND WILL DEVELOP DURING THIS TIME 
  AS WELL. 

* ACCUMULATIONS...STORM TOTAL SNOWFALL ACCUMULATIONS OF 4 TO 7 
  INCHES POSSIBLE. 

* WIND AND VISIBILITY...NORTH TO NORTHWEST WINDS OF 30 TO 45 MPH 
  WILL BE POSSIBLE. THIS WOULD REDUCE THE VISIBILITY TO A 
  QUARTER MILE OR LESS AT TIMES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR SIGNIFICANT
SNOW...SLEET...OR ICE ACCUMULATIONS THAT MAY IMPACT TRAVEL.
CONTINUE TO MONITOR THE LATEST FORECASTS.

&&

$$
846 
WWUS43 KFSD 162104
WSWFSD

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SIOUX FALLS SD
304 PM CST WED NOV 16 2016

SDZ038-052>055-170515-
/O.CAN.KFSD.WS.A.0003.161118T0900Z-161119T0300Z/
/O.EXA.KFSD.BZ.A.0003.161118T0900Z-161119T0300Z/
BEADLE-JERAULD-SANBORN-MINER-LAKE-
INCLUDING THE CITIES OF...HURON...WESSINGTON SPRINGS...ALPENA...
WOONSOCKET...HOWARD...MADISON...ORLAND
304 PM CST WED NOV 16 2016

...BLIZZARD WATCH IN EFFECT FROM LATE THURSDAY NIGHT THROUGH
FRIDAY EVENING...
...WINTER STORM WATCH IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A BLIZZARD
WATCH...WHICH IS IN EFFECT FROM LATE THURSDAY NIGHT THROUGH
FRIDAY EVENING. THE WINTER STORM WATCH HAS BEEN CANCELLED. 

* TIMING...RAIN WILL QUICKLY CHANGE TO SNOW LATE THURSDAY NIGHT
  AND BECOME HEAVY AT TIMES THROUGH FRIDAY AFTERNOON. A VERY
  STRONG NORTH TO NORTHWEST WIND WILL DEVELOP DURING THIS TIME AS
  WELL, CREATING THE POSSIBILITY OF WHITEOUT CONDITIONS ESPECIALLY
  WHEN THE SNOW IS FALLING.

* ACCUMULATIONS...STORM TOTAL SNOWFALL ACCUMULATIONS OF 4 TO 7 
  INCHES POSSIBLE. 

* WIND AND VISIBILITY...NORTH TO NORTHWEST WINDS OF 30 TO 50 MPH
  WILL BE POSSIBLE. THIS WOULD REDUCE THE VISIBILITY TO A QUARTER
  MILE OR LESS AT TIMES.

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.

&&

$$

MNZ071-072-SDZ039-040-170515-
/O.CON.KFSD.BZ.A.0003.161118T0900Z-161119T0300Z/
LINCOLN MN-LYON MN-KINGSBURY-BROOKINGS-
INCLUDING THE CITIES OF...TYLER...HENDRICKS...LAKE BENTON...
IVANHOE...MARSHALL...DE SMET...ARLINGTON...LAKE PRESTON...
BROOKINGS
304 PM CST WED NOV 16 2016

...BLIZZARD WATCH REMAINS IN EFFECT FROM LATE THURSDAY NIGHT
THROUGH FRIDAY EVENING...

* TIMING...RAIN WILL QUICKLY CHANGE TO SNOW LATE THURSDAY NIGHT
  AND BECOME HEAVY AT TIMES THROUGH FRIDAY AFTERNOON. A VERY
  STRONG NORTH TO NORTHWEST WIND WILL DEVELOP DURING THIS TIME AS
  WELL, CREATING THE POSSIBILITY OF WHITEOUT CONDITIONS ESPECIALLY
  WHEN THE SNOW IS FALLING.

* ACCUMULATIONS...STORM TOTAL SNOWFALL ACCUMULATIONS OF 4 TO 7 
  INCHES POSSIBLE. 

* WIND AND VISIBILITY...NORTH TO NORTHWEST WINDS OF 30 TO 50 MPH 
  WILL BE POSSIBLE. THIS WOULD GREATLY REDUCE THE VISIBILITY AND 
  BRING WHITEOUT CONDITIONS. 

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.

&&

$$

IAZ001-MNZ080-089-097-098-SDZ050-056>068-170515-
/O.CON.KFSD.WS.A.0003.161118T0900Z-161119T0300Z/
LYON IA-MURRAY-NOBLES-PIPESTONE-ROCK-GREGORY-MOODY-BRULE-AURORA-
DAVISON-HANSON-MCCOOK-MINNEHAHA-CHARLES MIX-DOUGLAS-HUTCHINSON-
TURNER-LINCOLN SD-BON HOMME-
INCLUDING THE CITIES OF...ROCK RAPIDS...GEORGE...INWOOD...
LARCHWOOD...SLAYTON...FULDA...WORTHINGTON...PIPESTONE...LUVERNE...
GREGORY...BURKE...FLANDREAU...CHAMBERLAIN...KIMBALL...
PLANKINTON...WHITE LAKE...STICKNEY...MITCHELL...ALEXANDRIA...
EMERY...SALEM...CANISTOTA...BRIDGEWATER...MONTROSE...
SIOUX FALLS...WAGNER...PLATTE...LAKE ANDES...MARTY...ARMOUR...
CORSICA...DELMONT...PARKSTON...FREEMAN...MENNO...TRIPP...
CLAYTON...PARKER...CENTERVILLE...MARION...VIBORG...IRENE...
HURLEY...CHANCELLOR...CANTON...LENNOX...TEA...HARRISBURG...
TYNDALL...SCOTLAND...SPRINGFIELD...AVON...TABOR
304 PM CST WED NOV 16 2016

...WINTER STORM WATCH REMAINS IN EFFECT FROM LATE THURSDAY NIGHT
THROUGH FRIDAY EVENING...

* TIMING...RAIN WILL QUICKLY CHANGE TO SNOW LATE THURSDAY NIGHT 
  AND BECOME HEAVY AT TIMES THROUGH FRIDAY AFTERNOON. A VERY 
  STRONG NORTH TO NORTHWEST WIND WILL DEVELOP DURING THIS TIME 
  AS WELL. 

* ACCUMULATIONS...STORM TOTAL SNOWFALL ACCUMULATIONS OF OVER 3 
  INCHES ARE EXPECTED. 

* WIND AND VISIBILITY...NORTH TO NORTHWEST WINDS OF 30 TO 45 MPH 
  WILL BE POSSIBLE. THIS WOULD REDUCE THE VISIBILITY TO A 
  QUARTER MILE OR LESS AT TIMES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR SIGNIFICANT
SNOW...SLEET...OR ICE ACCUMULATIONS THAT MAY IMPACT TRAVEL.
CONTINUE TO MONITOR THE LATEST FORECASTS.

&&

$$
158 
WWUS43 KFSD 170427
WSWFSD

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1027 PM CST WED NOV 16 2016

MNZ071-072-SDZ038>040-052>055-171230-
/O.CON.KFSD.BZ.A.0003.161118T0900Z-161119T0300Z/
LINCOLN MN-LYON MN-BEADLE-KINGSBURY-BROOKINGS-JERAULD-SANBORN-
MINER-LAKE-
INCLUDING THE CITIES OF...TYLER...HENDRICKS...LAKE BENTON...
IVANHOE...MARSHALL...HURON...DE SMET...ARLINGTON...LAKE PRESTON...
BROOKINGS...WESSINGTON SPRINGS...ALPENA...WOONSOCKET...HOWARD...
MADISON...ORLAND
1027 PM CST WED NOV 16 2016

...BLIZZARD WATCH REMAINS IN EFFECT FROM LATE THURSDAY NIGHT
THROUGH FRIDAY EVENING...

* TIMING...RAIN WILL QUICKLY CHANGE TO SNOW LATE THURSDAY NIGHT 
  AND BECOME HEAVY AT TIMES THROUGH FRIDAY AFTERNOON. A VERY 
  STRONG NORTH TO NORTHWEST WIND WILL DEVELOP DURING THIS TIME 
  AS WELL... CREATING THE POSSIBILITY OF WHITEOUT CONDITIONS 
  ESPECIALLY WHEN THE SNOW IS FALLING. 

* ACCUMULATIONS...STORM TOTAL SNOWFALL ACCUMULATIONS OF 4 TO 8 
  INCHES ARE POSSIBLE. 

* WIND AND VISIBILITY...NORTH TO NORTHWEST WINDS OF 30 TO 50 MPH
  WILL BE POSSIBLE. THESE STRONG WINDS WILL GREATLY REDUCE THE
  VISIBILITY AND MAY BRING WHITEOUT CONDITIONS.

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.

&&

$$

IAZ001-MNZ080-089-097-098-SDZ050-056>068-171230-
/O.CON.KFSD.WS.A.0003.161118T0900Z-161119T0300Z/
LYON IA-MURRAY-NOBLES-PIPESTONE-ROCK-GREGORY-MOODY-BRULE-AURORA-
DAVISON-HANSON-MCCOOK-MINNEHAHA-CHARLES MIX-DOUGLAS-HUTCHINSON-
TURNER-LINCOLN SD-BON HOMME-
INCLUDING THE CITIES OF...ROCK RAPIDS...GEORGE...INWOOD...
LARCHWOOD...SLAYTON...FULDA...WORTHINGTON...PIPESTONE...LUVERNE...
GREGORY...BURKE...FLANDREAU...CHAMBERLAIN...KIMBALL...
PLANKINTON...WHITE LAKE...STICKNEY...MITCHELL...ALEXANDRIA...
EMERY...SALEM...CANISTOTA...BRIDGEWATER...MONTROSE...
SIOUX FALLS...WAGNER...PLATTE...LAKE ANDES...MARTY...ARMOUR...
CORSICA...DELMONT...PARKSTON...FREEMAN...MENNO...TRIPP...
CLAYTON...PARKER...CENTERVILLE...MARION...VIBORG...IRENE...
HURLEY...CHANCELLOR...CANTON...LENNOX...TEA...HARRISBURG...
TYNDALL...SCOTLAND...SPRINGFIELD...AVON...TABOR
1027 PM CST WED NOV 16 2016

...WINTER STORM WATCH REMAINS IN EFFECT FROM LATE THURSDAY NIGHT
THROUGH FRIDAY EVENING...

* TIMING...RAIN WILL QUICKLY CHANGE TO SNOW LATE THURSDAY NIGHT 
  AND BECOME HEAVY AT TIMES THROUGH FRIDAY AFTERNOON. A VERY 
  STRONG NORTH TO NORTHWEST WIND WILL DEVELOP DURING THIS TIME 
  AS WELL. 

* ACCUMULATIONS...STORM TOTAL SNOWFALL ACCUMULATIONS OF OVER 3
  INCHES ARE POSSIBLE.

* WIND AND VISIBILITY...NORTH TO NORTHWEST WINDS OF 30 TO 45 MPH 
  WILL BE POSSIBLE. THIS WOULD REDUCE THE VISIBILITY TO A 
  QUARTER MILE OR LESS AT TIMES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR SIGNIFICANT
SNOW...SLEET...OR ICE ACCUMULATIONS THAT MAY IMPACT TRAVEL.
CONTINUE TO MONITOR THE LATEST FORECASTS.

&&

$$
070 
WWUS43 KFSD 170934
WSWFSD

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SIOUX FALLS SD
334 AM CST THU NOV 17 2016

MNZ071-072-SDZ039-040-171745-
/O.UPG.KFSD.BZ.A.0003.161118T0900Z-161119T0300Z/
/O.NEW.KFSD.BZ.W.0003.161118T0900Z-161119T0100Z/
LINCOLN MN-LYON MN-KINGSBURY-BROOKINGS-
INCLUDING THE CITIES OF...TYLER...HENDRICKS...LAKE BENTON...
IVANHOE...MARSHALL...DE SMET...ARLINGTON...LAKE PRESTON...
BROOKINGS
334 AM CST THU NOV 17 2016

...BLIZZARD WARNING IN EFFECT FROM 3 AM TO 7 PM CST FRIDAY...

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A BLIZZARD
WARNING...WHICH IS IN EFFECT FROM 3 AM TO 7 PM CST FRIDAY. THE
BLIZZARD WATCH IS NO LONGER IN EFFECT. 

* TIMING...RAIN WILL QUICKLY CHANGE TO SNOW BY 3 AM AND CONTINUE
  HEAVY AT TIMES THROUGH LATE MORNING. THE SNOW WILL BEGIN TO
  DECREASE DURING THE AFTERNOON. NORTHWEST WINDS WILL INCREASE
  AROUND DAYBREAK WITH GUSTS AROUND 50 MPH LIKELY THROUGH THE DAY.

* ACCUMULATIONS...STORM TOTAL SNOWFALL ACCUMULATIONS OF 5 TO 8 
  INCHES ARE POSSIBLE. 

* WIND AND VISIBILITY...NORTH TO NORTHWEST WINDS OF 30 TO 50 MPH
  WILL BE LIKELY. THESE STRONG WINDS WILL BRING WHITEOUT
  CONDITIONS.

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 TRAVEL...HAVE A WINTER SURVIVAL KIT WITH YOU. IF YOU GET
STRANDED...STAY WITH YOUR VEHICLE.

&&

$$

MNZ080-097-171745-
/O.UPG.KFSD.WS.A.0003.161118T0900Z-161119T0300Z/
/O.NEW.KFSD.BZ.W.0003.161118T0900Z-161119T0100Z/
MURRAY-PIPESTONE-
INCLUDING THE CITIES OF...SLAYTON...FULDA...PIPESTONE
334 AM CST THU NOV 17 2016

...BLIZZARD WARNING IN EFFECT FROM 3 AM TO 7 PM CST FRIDAY...

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A BLIZZARD
WARNING...WHICH IS IN EFFECT FROM 3 AM TO 7 PM CST FRIDAY. THE
WINTER STORM WATCH IS NO LONGER IN EFFECT. 

* TIMING...RAIN WILL QUICKLY CHANGE TO SNOW AROUND 3 AM AND
  CONTINUE HEAVY AT TIMES THROUGH LATE MORNING. THE SNOW WILL
  BEGIN TO DECREASE DURING THE AFTERNOON. NORTHWEST WINDS WILL
  INCREASE AROUND DAYBREAK WITH GUSTS AROUND 50 MPH LIKELY THROUGH
  THE DAY.

* ACCUMULATIONS...STORM TOTAL SNOWFALL ACCUMULATIONS OF 4 TO 6 
  INCHES ARE POSSIBLE. 

* WIND AND VISIBILITY...NORTH TO NORTHWEST WINDS OF 30 TO 50 MPH
  WILL BE LIKELY. THESE STRONG WINDS WILL BRING WHITEOUT
  CONDITIONS.

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 TRAVEL...HAVE A WINTER SURVIVAL KIT WITH YOU. IF YOU GET
STRANDED...STAY WITH YOUR VEHICLE.

&&

$$

SDZ038-052-053-171745-
/O.UPG.KFSD.BZ.A.0003.161118T0900Z-161119T0300Z/
/O.NEW.KFSD.WS.W.0003.161118T0300Z-161118T1800Z/
BEADLE-JERAULD-SANBORN-
INCLUDING THE CITIES OF...HURON...WESSINGTON SPRINGS...ALPENA...
WOONSOCKET
334 AM CST THU NOV 17 2016

...WINTER STORM WARNING IN EFFECT FROM 9 PM THIS EVENING TO NOON
CST FRIDAY...

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A WINTER
STORM WARNING FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT FROM
9 PM THIS EVENING TO NOON CST FRIDAY. THE BLIZZARD WATCH IS NO
LONGER IN EFFECT.

* TIMING...RAIN WILL CHANGE TO SNOW DURING THE EVENING AND BECOME
  MODERATE TO HEAVY AT TIMES FROM ABOUT 9 PM THROUGH 6 AM.
  SNOWFALL WILL TAPER OFF THROUGH THE MORNING. NORTHWEST WINDS
  WILL INCREASE THROUGH THE NIGHT WITH GUSTS AROUND 45 MPH LIKELY
  LATE TONIGHT INTO FRIDAY MORNING.

* ACCUMULATIONS...STORM TOTAL SNOWFALL ACCUMULATIONS OF 4 TO 6 
  INCHES ARE POSSIBLE. 

* WIND AND VISIBILITY...NORTH TO NORTHWEST WINDS OF 30 TO 45 MPH
  WILL BE LIKELY. THESE STRONG WINDS WILL GREATLY REDUCE THE
  VISIBILITY AND MAY BRING BRIEF WHITEOUT CONDITIONS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW AND BLOWING SNOW MEANS
SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. 
SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL
DANGEROUS...AND VISIBILITIES WILL BE LIMITED FURTHER DUE TO STRONG
WINDS BLOWING SNOW AROUND.  ONLY TRAVEL IN AN EMERGENCY.  IF YOU
MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER IN YOUR
VEHICLE IN CASE OF AN EMERGENCY.

&&

$$

SDZ054-055-171745-
/O.UPG.KFSD.BZ.A.0003.161118T0900Z-161119T0300Z/
/O.NEW.KFSD.WS.W.0003.161118T0900Z-161119T0000Z/
MINER-LAKE-
INCLUDING THE CITIES OF...HOWARD...MADISON...ORLAND
334 AM CST THU NOV 17 2016

...WINTER STORM WARNING IN EFFECT FROM 3 AM TO 6 PM CST FRIDAY...

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A WINTER
STORM WARNING FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT FROM
3 AM TO 6 PM CST FRIDAY. THE BLIZZARD WATCH IS NO LONGER IN
EFFECT.

* TIMING...RAIN WILL CHANGE TO SNOW DURING THE EVENING AND BECOME
  MODERATE TO HEAVY AT TIMES FROM ABOUT 9 PM THROUGH 6 AM.
  SNOWFALL WILL TAPER OFF THROUGH THE MORNING. NORTHWEST WINDS
  WILL INCREASE THROUGH THE NIGHT WITH GUSTS AROUND 45 MPH LIKELY
  LATE TONIGHT INTO FRIDAY MORNING.

* ACCUMULATIONS...STORM TOTAL SNOWFALL ACCUMULATIONS OF 5 TO 7 
  INCHES ARE POSSIBLE. 

* WIND AND VISIBILITY...NORTH TO NORTHWEST WINDS OF 30 TO 45 MPH
  WILL BE LIKELY. THESE STRONG WINDS WILL GREATLY REDUCE THE
  VISIBILITY AND MAY BRING BRIEF WHITEOUT CONDITIONS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW AND BLOWING SNOW MEANS
SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. 
SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL
DANGEROUS...AND VISIBILITIES WILL BE LIMITED FURTHER DUE TO STRONG
WINDS BLOWING SNOW AROUND.  ONLY TRAVEL IN AN EMERGENCY.  IF YOU
MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER IN YOUR
VEHICLE IN CASE OF AN EMERGENCY.

&&

$$

SDZ050-057>059-063-064-171745-
/O.UPG.KFSD.WS.A.0003.161118T0900Z-161119T0300Z/
/O.NEW.KFSD.WS.W.0003.161118T0300Z-161118T1800Z/
GREGORY-BRULE-AURORA-DAVISON-CHARLES MIX-DOUGLAS-
INCLUDING THE CITIES OF...GREGORY...BURKE...CHAMBERLAIN...
KIMBALL...PLANKINTON...WHITE LAKE...STICKNEY...MITCHELL...
WAGNER...PLATTE...LAKE ANDES...MARTY...ARMOUR...CORSICA...DELMONT
334 AM CST THU NOV 17 2016

...WINTER STORM WARNING IN EFFECT FROM 9 PM THIS EVENING TO NOON
CST FRIDAY...

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A WINTER
STORM WARNING FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT FROM
9 PM THIS EVENING TO NOON CST FRIDAY. THE WINTER STORM WATCH IS NO
LONGER IN EFFECT.

* TIMING...RAIN WILL CHANGE TO SNOW DURING THE EVENING AND BECOME
  MODERATE TO HEAVY AT TIMES FROM ABOUT 9 PM THROUGH 6 AM.
  SNOWFALL WILL TAPER OFF THROUGH THE MORNING. NORTHWEST WINDS
  WILL INCREASE THROUGH THE NIGHT WITH GUSTS AROUND 45 MPH LIKELY
  LATE TONIGHT INTO FRIDAY MORNING.

* ACCUMULATIONS...STORM TOTAL SNOWFALL ACCUMULATIONS OF 3 TO 6 
  INCHES ARE POSSIBLE. 

* WIND AND VISIBILITY...NORTH TO NORTHWEST WINDS OF 30 TO 45 MPH
  WILL BE LIKELY. THESE STRONG WINDS WILL GREATLY REDUCE THE
  VISIBILITY AND MAY BRING BRIEF WHITEOUT CONDITIONS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW AND BLOWING SNOW MEANS
SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. 
SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL
DANGEROUS...AND VISIBILITIES WILL BE LIMITED FURTHER DUE TO STRONG
WINDS BLOWING SNOW AROUND.  ONLY TRAVEL IN AN EMERGENCY.  IF YOU
MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER IN YOUR
VEHICLE IN CASE OF AN EMERGENCY.

&&

$$

MNZ098-SDZ056-060>062-065>068-171745-
/O.UPG.KFSD.WS.A.0003.161118T0900Z-161119T0300Z/
/O.NEW.KFSD.WS.W.0003.161118T0900Z-161119T0000Z/
ROCK-MOODY-HANSON-MCCOOK-MINNEHAHA-HUTCHINSON-TURNER-LINCOLN SD-
BON HOMME-
INCLUDING THE CITIES OF...LUVERNE...FLANDREAU...ALEXANDRIA...
EMERY...SALEM...CANISTOTA...BRIDGEWATER...MONTROSE...
SIOUX FALLS...PARKSTON...FREEMAN...MENNO...TRIPP...CLAYTON...
PARKER...CENTERVILLE...MARION...VIBORG...IRENE...HURLEY...
CHANCELLOR...CANTON...LENNOX...TEA...HARRISBURG...TYNDALL...
SCOTLAND...SPRINGFIELD...AVON...TABOR
334 AM CST THU NOV 17 2016

...WINTER STORM WARNING IN EFFECT FROM 3 AM TO 6 PM CST FRIDAY...

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A WINTER
STORM WARNING FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT FROM
3 AM TO 6 PM CST FRIDAY. THE WINTER STORM WATCH IS NO LONGER IN
EFFECT.

* TIMING...RAIN WILL QUICKLY CHANGE TO SNOW LATE TONIGHT AND
  CONTINUE MODERATE TO HEAVY AT TIMES THROUGH FRIDAY MORNING.
  SNOWFALL WILL GRADUALLY TAPER OFF THROUGH THE AFTERNOON BUT
  NORTHWEST WINDS OF 30 TO 50 MPH WILL LIKELY CREATING BLOWING AND
  DRIFTING.

* ACCUMULATIONS...STORM TOTAL SNOWFALL ACCUMULATIONS OF 3 TO 6 
  INCHES ARE POSSIBLE. 

* WIND AND VISIBILITY...NORTH TO NORTHWEST WINDS OF 30 TO 50 MPH
  WILL BE LIKELY. THIS WOULD REDUCE THE VISIBILITY TO A QUARTER
  MILE OR LESS AT TIMES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW AND BLOWING SNOW MEANS
SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. 
SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL
DANGEROUS...AND VISIBILITIES WILL BE LIMITED FURTHER DUE TO STRONG
WINDS BLOWING SNOW AROUND.  ONLY TRAVEL IN AN EMERGENCY.  IF YOU
MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER IN YOUR
VEHICLE IN CASE OF AN EMERGENCY.

&&

$$

IAZ001-MNZ089-171745-
/O.UPG.KFSD.WS.A.0003.161118T0900Z-161119T0300Z/
/O.NEW.KFSD.WW.Y.0011.161118T0900Z-161119T0000Z/
LYON IA-NOBLES-
INCLUDING THE CITIES OF...ROCK RAPIDS...GEORGE...INWOOD...
LARCHWOOD...WORTHINGTON
334 AM CST THU NOV 17 2016

...WINTER WEATHER ADVISORY IN EFFECT FROM 3 AM TO 6 PM CST
FRIDAY...

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 FRIDAY. THE WINTER STORM WATCH IS NO LONGER
IN EFFECT.

* TIMING...RAIN WILL CHANGE TO SNOW LATE TONIGHT AND CONTINUE INTO
  FRIDAY AFTERNOON. MODERATE SNOW WILL BE LIKELY AT TIMES BEFORE
  DIMINISHING LATE FRIDAY AFTERNOON. NORTHWEST WINDS WILL INCREASE
  FRIDAY MORNING WITH GUSTS AROUND 50 MPH LIKELY THROUGH THE DAY.

* ACCUMULATIONS...STORM TOTAL SNOWFALL ACCUMULATIONS OF 1 TO 3
  INCHES ARE POSSIBLE.

* WIND AND VISIBILITY...NORTH TO NORTHWEST WINDS OF 30 TO 50 MPH
  WILL BE LIKELY. THIS MAY REDUCE THE VISIBILITY TO AROUND A
  QUARTER MILE AT TIMES.

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.

&&

$$

MNZ081-090-171745-
/O.NEW.KFSD.WW.Y.0011.161118T0900Z-161119T0000Z/
COTTONWOOD-JACKSON-
INCLUDING THE CITIES OF...WINDOM...MOUNTAIN LAKE...JACKSON...
LAKEFIELD
334 AM CST THU NOV 17 2016

...WINTER WEATHER ADVISORY IN EFFECT FROM 3 AM TO 6 PM CST
FRIDAY...

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 FRIDAY.

* TIMING...RAIN WILL CHANGE TO SNOW LATE TONIGHT AND CONTINUE INTO
  FRIDAY AFTERNOON. MODERATE SNOW WILL BE LIKELY AT TIMES BEFORE
  DIMINISHING LATE FRIDAY AFTERNOON. NORTHWEST WINDS WILL INCREASE
  FRIDAY MORNING WITH GUSTS AROUND 50 MPH LIKELY THROUGH THE DAY.

* ACCUMULATIONS...STORM TOTAL SNOWFALL ACCUMULATIONS OF 1 TO 3
  INCHES ARE POSSIBLE.

* WIND AND VISIBILITY...NORTH TO NORTHWEST WINDS OF 30 TO 50 MPH
  WILL BE LIKELY. THIS MAY REDUCE THE VISIBILITY TO AROUND A
  QUARTER MILE AT TIMES.


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.

&&

$$

SDZ069-070-171745-
/O.NEW.KFSD.WW.Y.0011.161118T0900Z-161119T0000Z/
YANKTON-CLAY SD-
INCLUDING THE CITIES OF...YANKTON...VERMILLION
334 AM CST THU NOV 17 2016

...WINTER WEATHER ADVISORY IN EFFECT FROM 3 AM TO 6 PM CST
FRIDAY...

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 FRIDAY.

* TIMING...RAIN WILL QUICKLY CHANGE OVER TO SNOW LATE TONIGHT AND
  CONTINUE MODERATE TO HEAVY AT TIMES THROUGH FRIDAY MORNING.
  SNOWFALL WILL GRADUALLY TAPER OFF THROUGH THE AFTERNOON BUT
  NORTHWEST WINDS OF 30 TO 45 MPH WILL LIKELY CREATING BLOWING
  AND DRIFTING.

* ACCUMULATIONS...STORM TOTAL SNOWFALL ACCUMULATIONS OF 2 TO 4
  INCHES ARE POSSIBLE.

* WIND AND VISIBILITY...NORTH TO NORTHWEST WINDS OF 30 TO 45 MPH
  WILL BE LIKELY. THIS MAY REDUCE THE VISIBILITY TO A QUARTER
  MILE OR LESS AT TIMES.

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.

&&

$$

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 Nov 15, 10:48 PM CST, 4 hours 45 minutes earlier.

Area forecast discussion, Nov 15, 10:48 PM CST, 4 hours 45 minutes before
Area Forecast Discussion
National Weather Service Sioux Falls SD
1048 PM CST Tue Nov 15 2016

.SHORT TERM...(This evening through Wednesday)
Issued at 329 PM CST Tue Nov 15 2016

Weak shortwave has shifted east of the area, with mid and high
clouds continuing to dissipate. Northwest winds behind the wave
remain breezy this afternoon, then decrease towards sunset as the
surface ridge quickly slips east through the Plains. Winds remain
relatively light but turn south southeast late tonight. All in all,
looks like a quiet night with seasonally mild lows in the lower 30s
to lower 40s.

Surface pressure gradient rapidly increases on Wednesday as pressure
drops over the central High Plains ahead of the approaching storm
system. Southerly winds increase, becoming breezy by mid morning
across much of the area. Frontal boundary arrives in south central
SD by mid afternoon, however gusty winds will continue well into the
afternoon east of the James River. While conditions do look to mix
well, scattered mid to high may also limit temperatures a little.
The best mixing looks to be across the Missouri Valley and south
central, and therefore boosted highs here several degrees above the
blend figures. Highs are expected in the lower 60s in southwest
Minnesota to near 70 in south central and Mo Valley.

.LONG TERM...(Wednesday night through Tuesday)
Issued at 329 PM CST Tue Nov 15 2016

Focus in the medium range is the upper trough carving into the
northern plains Thursday night into Friday.  Models have focused in
keeping the upper level jet energy on the backside of the upper
trough.  This keeps the trough digging, and has resulted in a shift
of the cold air further east resulting in the area being more in the
focus for significant snowfall across the area.

Fairly strong 700-750 mb frontogenetic forcing develops along and
east of the James River Valley and lifts northeast. Not a lot of
upper level level support with left exit region associated with the
jet streak on the back side of the upper trough remaining to the
south and west of the forecast area and right entrance region of
upper jet on the front side of the trough remaining focused to the
east. With that said, EPV* only remains weakly stable above the
frontogenetic band, suggesting the potential for enhanced banding.
Made adjustments in raising winds on Friday, and lowering
temperatures up north allowing for more snowfall accumulation.  The
net result was a forecast similar to WPC, but wouldn't be surprised
if snowfall amounts will need to be raised from the central James
Valley into southwest Minnesota depending on where frontogenetic band
sets up.

Have not made additional adjustments to forecast in the extended.
Overall, cooler northwest flow sticks around through the weekend,
but more mild air attempts to build into the region early next week.
Still doesn't look to be as mild as current pattern, and
temperatures will be much closer to seasonal averages.

&&

.AVIATION...(For the 06Z TAFS through 06Z Wednesday night)
Issued at 1047 PM CST Tue Nov 15 2016

VFR conditions are expected through the TAF period. Southeasterly
winds will pick up Wednesday, gusting to around 25 kts through the
afternoon.

&&

.FSD WATCHES/WARNINGS/ADVISORIES...
SD...None.
MN...None.
IA...None.
NE...None.
&&

SHORT TERM...
LONG TERM...BT
AVIATION...JM
Hazardous weather outlook, Nov 15, 7:25 PM CST, 8 hours 8 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SIOUX FALLS SD
725 PM CST TUE NOV 15 2016

IAZ001-002-012-MNZ071-072-080-081-089-090-097-098-NEZ013-
SDZ038>040-050-052>071-170130-
LYON IA-OSCEOLA-SIOUX-LINCOLN MN-LYON MN-MURRAY-COTTONWOOD-NOBLES-
JACKSON-PIPESTONE-ROCK-DIXON-BEADLE-KINGSBURY-BROOKINGS-GREGORY-
JERAULD-SANBORN-MINER-LAKE-MOODY-BRULE-AURORA-DAVISON-HANSON-
MCCOOK-MINNEHAHA-CHARLES MIX-DOUGLAS-HUTCHINSON-TURNER-LINCOLN SD-
BON HOMME-YANKTON-CLAY SD-UNION-
725 PM CST TUE NOV 15 2016

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

.DAY ONE...TONIGHT

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

HIGH FIRE DANGER WILL RETURN ON WEDNESDAY...AS STRONGER SOUTHERLY
WINDS COMBINE WITH LOW HUMIDITY AND DRY VEGETATION.

A MAJOR WINTER STORM SYSTEM IS BECOMING INCREASINGLY LIKELY ACROSS
THE NORTHERN PLAINS LATER THURSDAY NIGHT AND FRIDAY. THERE IS
POTENTIAL FOR THIS SYSTEM TO BRING A MODERATE ACCUMULATION OF SNOW
AND VERY STRONG WINDS...WHICH COULD PRODUCE IMPACTS TO TRAVEL
INCLUDING ACCUMULATIONS ON ROADWAYS AND PERIODS OF REDUCED
VISIBILITY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED.

IAZ003-013-014-020>022-031-032-NEZ014-170130-
DICKINSON-O'BRIEN-CLAY IA-PLYMOUTH-CHEROKEE-BUENA VISTA-WOODBURY-
IDA-DAKOTA-
725 PM CST TUE NOV 15 2016

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHWEST
IOWA...WEST CENTRAL IOWA AND NORTHEAST NEBRASKA.

.DAY ONE...TONIGHT

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

HIGH FIRE DANGER WILL EXIST ON WEDNESDAY...AS STRONGER SOUTHERLY
WINDS COMBINE WITH LOW HUMIDITY AND DRY VEGETATION.

A MAJOR WINTER STORM SYSTEM IS BECOMING INCREASINGLY LIKELY ACROSS
THE NORTHERN PLAINS LATER THURSDAY NIGHT AND FRIDAY. THERE IS
POTENTIAL FOR THIS SYSTEM TO BRING LIGHT SNOW AND VERY STRONG
WINDS...WHICH COULD PRODUCE IMPACTS TO TRAVEL INCLUDING
ACCUMULATIONS ON ROADWAYS AND PERIODS OF REDUCED VISIBILITY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED.

The office that day

Everything else NWS Sioux Falls, SD issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Nov 16, 3:33 AM CSTWinter Storm WatchFSDAurora, Beadle, Bon Homme, Brule, Charles Mix, Davison and 13 more24 hr

Nearby

Blizzard Watches in South Dakota, 2016Blizzard Watches in Minnesota, 2016Every blizzard watch in 2016

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.