Alert archive / Iowa / Ice Storm Warnings in 2017
Ice Storm Warning 1, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this ice storm warning at Jan 14, 2017, 3:55 PM CST for 5 counties in Iowa; Dakota County, Nebraska. It took effect at Jan 16, 2017, 12:00 AM CST. It was in force for 19 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jan 14, 2017, 3:55 PM CST (21:55 UTC)
- In effect from
- Jan 16, 2017, 12:00 AM CST
- Expired
- Jan 16, 2017, 7:00 PM CST
- In force
- 19 hr
- Issued by
- NWS Sioux Falls, SD
Counties Buena Vista County, IA, Cherokee County, IA, Clay County, IA, Ida County, IA, Woodbury County, IA, Dakota County, NE
The radar
The Sioux Falls radar (KFSD), 137 km from the middle of the area, began a volume at 21:58 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
Omaha, NE (KOAX), launched 12:00Z, 9.9 hours before the alert went out and 156 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
- 1762 m above ground
- 0-6 km bulk shear
- 58 kt
- 0-1 km storm-relative helicity
- 27 m²/s²
- 0-3 km storm-relative helicity
- 87 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
876 WWUS43 KFSD 142155 WSWFSD URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE SIOUX FALLS SD 355 PM CST SAT JAN 14 2017 IAZ014-021-022-031-032-NEZ014-150600- /O.UPG.KFSD.WS.A.0001.170116T0000Z-170117T0600Z/ /O.NEW.KFSD.IS.W.0001.170116T0000Z-170117T0600Z/ CLAY IA-CHEROKEE-BUENA VISTA-WOODBURY-IDA-DAKOTA- INCLUDING THE CITIES OF...SPENCER...CHEROKEE...STORM LAKE... SIOUX CITY...IDA GROVE...HOLSTEIN...BATTLE CREEK... SOUTH SIOUX CITY 355 PM CST SAT JAN 14 2017 ...ICE STORM WARNING IN EFFECT FROM 6 PM SUNDAY TO MIDNIGHT CST MONDAY NIGHT... THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED AN ICE STORM WARNING...WHICH IS IN EFFECT FROM 6 PM SUNDAY TO MIDNIGHT CST MONDAY NIGHT. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. * TIMING...A WINTRY MIX OF PRECIPITATION WILL SPREAD NORTH INTO THE AREA SUNDAY EVENING AND CONTINUE INTO MONDAY. PRECIPITATION IS EXPECTED TO BEGIN AS EITHER FREEZING RAIN OR SLEET SUNDAY EVENING...BECOMING ALL FREEZING RAIN IN THE AREA EARLY ON MONDAY. PRECIPITATION IS EXPECTED TO SWITCH OVER TO SNOW ON MONDAY AFTERNOON. * ACCUMULATIONS...ICE ACCUMULATIONS OF TWO TENTHS TO A THIRD OF AN INCH ARE EXPECTED THROUGH MONDAY AFTERNOON. THEREAFTER, THE PRECIPITATION WILL TRANSITION TO SNOW, WITH ONE TO THREE INCHES OF SNOW EXPECTED. PRECAUTIONARY/PREPAREDNESS ACTIONS... AN ICE STORM WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF ICE ACCUMULATIONS WILL MAKE TRAVEL DANGEROUS OR IMPOSSIBLE. TRAVEL IS STRONGLY DISCOURAGED. COMMERCE WILL LIKELY BE SEVERELY IMPACTED. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. ICE ACCUMULATIONS AND WINDS WILL LIKELY LEAD TO SNAPPED POWER LINES AND FALLING TREE BRANCHES THAT ADD TO THE DANGER. && $$ IAZ001>003-012-013-020-MNZ080-081-089-090-098-NEZ013-SDZ062- 066>071-150600- /O.CON.KFSD.WS.A.0001.170116T0000Z-170117T0600Z/ LYON IA-OSCEOLA-DICKINSON-SIOUX-O'BRIEN-PLYMOUTH-MURRAY- COTTONWOOD-NOBLES-JACKSON-ROCK-DIXON-MINNEHAHA-TURNER-LINCOLN SD- BON HOMME-YANKTON-CLAY SD-UNION- INCLUDING THE CITIES OF...ROCK RAPIDS...GEORGE...INWOOD... LARCHWOOD...SIBLEY...SPIRIT LAKE...MILFORD...ARNOLDS PARK... SIOUX CENTER...ORANGE CITY...ROCK VALLEY...HAWARDEN...HULL... SHELDON...HARTLEY...SANBORN...LE MARS...SLAYTON...FULDA... WINDOM...MOUNTAIN LAKE...WORTHINGTON...JACKSON...LAKEFIELD... LUVERNE...WAKEFIELD...PONCA...ALLEN...SIOUX FALLS...PARKER... CENTERVILLE...MARION...VIBORG...IRENE...HURLEY...CHANCELLOR... CANTON...LENNOX...TEA...HARRISBURG...TYNDALL...SCOTLAND... SPRINGFIELD...AVON...TABOR...YANKTON...VERMILLION... NORTH SIOUX CITY...BERESFORD...ELK POINT...ALCESTER...JEFFERSON 355 PM CST SAT JAN 14 2017 ...WINTER STORM WATCH REMAINS IN EFFECT FROM SUNDAY EVENING THROUGH MONDAY EVENING... * TIMING...A WINTRY MIX OF PRECIPITATION WILL BEGIN SPREADING NORTH INTO THE AREA SUNDAY EVENING AND CONTINUE INTO MONDAY. PRECIPITATION IS EXPECTED TO BEGIN AS EITHER FREEZING RAIN OR SLEET SUNDAY EVENING. PRECIPITATION SHOULD SWITCH OVER TO SNOW FROM WEST TO EAST ON MONDAY. * ACCUMULATIONS...ICE ACCUMULATIONS COULD RANGE FROM A TENTH TO A QUARTER OF AN INCH...WITH THE GREATEST ACCUMULATIONS EXPECTED ACROSS NORTHWEST IOWA. AS PRECIPITATION TRANSITIONS OVER TO SNOW ON MONDAY, MODERATE SNOW ACCUMULATIONS WILL BE POSSIBLE. AT THIS TIME, THE HEAVIEST SNOW ACCUMULATIONS LOOK TO BE JUST NORTH OF HIGHWAY 60 IMPACTING THE FAR SOUTHEASTERN TIP OF SOUTH DAKOTA...NORTHWEST IOWA INTO SOUTHWEST MINNESOTA. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR SIGNIFICANT SNOW...SLEET...OR ICE ACCUMULATIONS THAT MAY IMPACT TRAVEL. CONTINUE TO MONITOR THE LATEST FORECASTS. && $$
8 follow-up statements
745 WWUS43 KFSD 150255 WSWFSD URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE SIOUX FALLS SD 855 PM CST SAT JAN 14 2017 IAZ014-021-022-031-032-NEZ014-151100- /O.EXT.KFSD.IS.W.0001.170116T0300Z-170117T0600Z/ CLAY IA-CHEROKEE-BUENA VISTA-WOODBURY-IDA-DAKOTA- INCLUDING THE CITIES OF...SPENCER...CHEROKEE...STORM LAKE... SIOUX CITY...IDA GROVE...HOLSTEIN...BATTLE CREEK... SOUTH SIOUX CITY 855 PM CST SAT JAN 14 2017 ...ICE STORM WARNING NOW IN EFFECT FROM 9 PM SUNDAY TO MIDNIGHT CST MONDAY NIGHT... * TIMING...A WINTRY MIX OF PRECIPITATION WILL SPREAD NORTH INTO THE AREA SUNDAY EVENING AND CONTINUE INTO MONDAY. PRECIPITATION IS EXPECTED TO BEGIN AS EITHER FREEZING RAIN OR SLEET SUNDAY EVENING...BECOMING ALL FREEZING RAIN IN THE AREA EARLY ON MONDAY. PRECIPITATION IS EXPECTED TO SWITCH OVER TO SNOW ON MONDAY AFTERNOON. * ACCUMULATIONS...ICE ACCUMULATIONS OF TWO TENTHS TO A THIRD OF AN INCH ARE EXPECTED THROUGH MONDAY AFTERNOON. THEREAFTER...THE PRECIPITATION WILL TRANSITION TO SNOW...WITH ONE TO THREE INCHES OF SNOW EXPECTED. PRECAUTIONARY/PREPAREDNESS ACTIONS... AN ICE STORM WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF ICE ACCUMULATIONS WILL MAKE TRAVEL DANGEROUS OR IMPOSSIBLE. TRAVEL IS STRONGLY DISCOURAGED. COMMERCE WILL LIKELY BE SEVERELY IMPACTED. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. ICE ACCUMULATIONS AND WINDS WILL LIKELY LEAD TO SNAPPED POWER LINES AND FALLING TREE BRANCHES THAT ADD TO THE DANGER. && $$ IAZ012-013-020-NEZ013-SDZ068>071-151100- /O.EXT.KFSD.WS.A.0001.170116T0300Z-170117T0600Z/ SIOUX-O'BRIEN-PLYMOUTH-DIXON-BON HOMME-YANKTON-CLAY SD-UNION- INCLUDING THE CITIES OF...SIOUX CENTER...ORANGE CITY... ROCK VALLEY...HAWARDEN...HULL...SHELDON...HARTLEY...SANBORN... LE MARS...WAKEFIELD...PONCA...ALLEN...TYNDALL...SCOTLAND... SPRINGFIELD...AVON...TABOR...YANKTON...VERMILLION... NORTH SIOUX CITY...BERESFORD...ELK POINT...ALCESTER...JEFFERSON 855 PM CST SAT JAN 14 2017 ...WINTER STORM WATCH NOW IN EFFECT FROM SUNDAY EVENING THROUGH MONDAY EVENING... * TIMING...A WINTRY MIX OF PRECIPITATION WILL BEGIN SPREADING NORTH INTO THE AREA LATE SUNDAY EVENING AND CONTINUE INTO MONDAY. PRECIPITATION IS EXPECTED TO BEGIN AS EITHER FREEZING RAIN OR SLEET SUNDAY EVENING. PRECIPITATION SHOULD SWITCH OVER TO SNOW FROM WEST TO EAST ON MONDAY. * ACCUMULATIONS...ICE ACCUMULATIONS COULD RANGE FROM A TENTH TO A QUARTER OF AN INCH...WITH THE GREATEST ACCUMULATIONS EXPECTED ACROSS NORTHWEST IOWA...ESPECIALLY NEAR AND EAST OF HIGHWAY 60. AS PRECIPITATION TRANSITIONS OVER TO SNOW ON MONDAY...MODERATE SNOW ACCUMULATIONS WILL BE POSSIBLE. AT THIS TIME...THE GREATEST SNOW ACCUMULATIONS LOOK TO EXTEND FROM THE FAR SOUTHEASTERN TIP OF SOUTH DAKOTA TOWARD THE HIGHWAY 60 CORRIDOR IN NORTHWEST IOWA AND SOUTHWEST MINNESOTA. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR SIGNIFICANT SNOW...SLEET...OR ICE ACCUMULATIONS THAT MAY IMPACT TRAVEL. CONTINUE TO MONITOR THE LATEST FORECASTS. && $$ IAZ001>003-MNZ080-081-089-090-098-SDZ062-066-067-151100- /O.EXT.KFSD.WS.A.0001.170116T0600Z-170117T0600Z/ LYON IA-OSCEOLA-DICKINSON-MURRAY-COTTONWOOD-NOBLES-JACKSON-ROCK- MINNEHAHA-TURNER-LINCOLN SD- INCLUDING THE CITIES OF...ROCK RAPIDS...GEORGE...INWOOD... LARCHWOOD...SIBLEY...SPIRIT LAKE...MILFORD...ARNOLDS PARK... SLAYTON...FULDA...WINDOM...MOUNTAIN LAKE...WORTHINGTON... JACKSON...LAKEFIELD...LUVERNE...SIOUX FALLS...PARKER... CENTERVILLE...MARION...VIBORG...IRENE...HURLEY...CHANCELLOR... CANTON...LENNOX...TEA...HARRISBURG 855 PM CST SAT JAN 14 2017 ...WINTER STORM WATCH NOW IN EFFECT FROM LATE SUNDAY NIGHT THROUGH MONDAY EVENING... * TIMING...A WINTRY MIX OF PRECIPITATION WILL BEGIN SPREADING NORTH INTO THE AREA AFTER MIDNIGHT SUNDAY NIGHT...AND CONTINUE INTO MONDAY. PRECIPITATION COULD BEGIN AS EITHER FREEZING RAIN OR SNOW SUNDAY NIGHT. PRECIPITATION SHOULD SWITCH OVER TO ALL SNOW FROM WEST TO EAST ON MONDAY. * ACCUMULATIONS...ICE ACCUMULATIONS COULD RANGE FROM A GLAZE TO TWO TENTHS OF AN INCH...WITH THE GREATEST ICE ACCUMULATIONS TOWARD THE IOWA GREAT LAKES. AS PRECIPITATION TRANSITIONS TO SNOW ON MONDAY...MODERATE SNOW ACCUMULATIONS WILL BE POSSIBLE. AT THIS TIME...THE GREATEST SNOW ACCUMULATIONS LOOK TO BE TOWARD THE HIGHWAY 60 CORRIDOR IN NORTHWEST IOWA AND SOUTHWEST MINNESOTA. 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. && $$
443 WWUS43 KFSD 151041 WSWFSD URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE SIOUX FALLS SD 441 AM CST SUN JAN 15 2017 IAZ014-021-022-031-032-NEZ014-151845- /O.EXT.KFSD.IS.W.0001.170116T0600Z-170117T0600Z/ CLAY IA-CHEROKEE-BUENA VISTA-WOODBURY-IDA-DAKOTA- INCLUDING THE CITIES OF...SPENCER...CHEROKEE...STORM LAKE... SIOUX CITY...IDA GROVE...HOLSTEIN...BATTLE CREEK... SOUTH SIOUX CITY 441 AM CST SUN JAN 15 2017 ...ICE STORM WARNING NOW IN EFFECT FROM MIDNIGHT TONIGHT TO MIDNIGHT CST MONDAY NIGHT... * TIMING...A WINTRY MIX OF PRECIPITATION WILL SPREAD NORTH INTO THE AREA TONIGHT AND CONTINUE INTO MONDAY. PRECIPITATION IS EXPECTED TO BEGIN AS EITHER FREEZING RAIN OR SLEET LATE TONIGHT...BECOMING ALL FREEZING RAIN EARLY ON MONDAY. PRECIPITATION IS EXPECTED TO SWITCH OVER TO SNOW ON MONDAY AFTERNOON. * ACCUMULATIONS...ICE ACCUMULATIONS OF TWO TENTHS TO A THIRD OF AN INCH ARE EXPECTED THROUGH MONDAY AFTERNOON. THEREAFTER... THE PRECIPITATION WILL TRANSITION TO SNOW...WITH 1 TO 2 INCHES OF SNOW EXPECTED. PRECAUTIONARY/PREPAREDNESS ACTIONS... AN ICE STORM WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF ICE ACCUMULATIONS WILL MAKE TRAVEL DANGEROUS OR IMPOSSIBLE. TRAVEL IS STRONGLY DISCOURAGED. COMMERCE WILL LIKELY BE SEVERELY IMPACTED. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. ICE ACCUMULATIONS AND WINDS WILL LIKELY LEAD TO SNAPPED POWER LINES AND FALLING TREE BRANCHES THAT ADD TO THE DANGER. && $$ IAZ012-013-020-NEZ013-SDZ070-071-151845- /O.UPG.KFSD.WS.A.0001.170116T0300Z-170117T0600Z/ /O.NEW.KFSD.WW.Y.0003.170116T0900Z-170117T0600Z/ SIOUX-O'BRIEN-PLYMOUTH-DIXON-CLAY SD-UNION- INCLUDING THE CITIES OF...SIOUX CENTER...ORANGE CITY... ROCK VALLEY...HAWARDEN...HULL...SHELDON...HARTLEY...SANBORN... LE MARS...WAKEFIELD...PONCA...ALLEN...VERMILLION... NORTH SIOUX CITY...BERESFORD...ELK POINT...ALCESTER...JEFFERSON 441 AM CST SUN JAN 15 2017 ...WINTER WEATHER ADVISORY IN EFFECT FROM 3 AM MONDAY TO MIDNIGHT CST MONDAY NIGHT... THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A WINTER WEATHER ADVISORY FOR MIXED PRECIPITATION...WHICH IS IN EFFECT FROM 3 AM MONDAY TO MIDNIGHT CST MONDAY NIGHT. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. * TIMING...A WINTRY MIX OF PRECIPITATION WILL BEGIN SPREADING NORTH INTO THE AREA LATE TONIGHT AND CONTINUE INTO MONDAY. PRECIPITATION IS EXPECTED TO BEGIN AS EITHER FREEZING RAIN OR SLEET LATE TONIGHT. PRECIPITATION SHOULD SWITCH OVER TO SNOW FROM WEST TO EAST ON MONDAY. * ACCUMULATIONS...ICE ACCUMULATIONS COULD RANGE FROM A TENTH TO TWO TENTHS OF AN INCH...WITH THE GREATEST ACCUMULATIONS EXPECTED ACROSS NORTHWEST IOWA...ESPECIALLY NEAR AND EAST OF HIGHWAY 60. AS PRECIPITATION TRANSITIONS OVER TO SNOW ON MONDAY...SNOW ACCUMULATIONS OF 1 TO 3 INCHES WILL BE POSSIBLE. PRECAUTIONARY/PREPAREDNESS ACTIONS... 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. && $$ IAZ001>003-151845- /O.UPG.KFSD.WS.A.0001.170116T0600Z-170117T0600Z/ /O.NEW.KFSD.WW.Y.0003.170116T0900Z-170117T0600Z/ LYON IA-OSCEOLA-DICKINSON- INCLUDING THE CITIES OF...ROCK RAPIDS...GEORGE...INWOOD... LARCHWOOD...SIBLEY...SPIRIT LAKE...MILFORD...ARNOLDS PARK 441 AM CST SUN JAN 15 2017 ...WINTER WEATHER ADVISORY IN EFFECT FROM 3 AM MONDAY TO MIDNIGHT CST MONDAY NIGHT... THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A WINTER WEATHER ADVISORY FOR MIXED PRECIPITATION...WHICH IS IN EFFECT FROM 3 AM MONDAY TO MIDNIGHT CST MONDAY NIGHT. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. * TIMING...A WINTRY MIX OF PRECIPITATION WILL BEGIN SPREADING NORTH INTO THE AREA LATE TONIGHT...AND CONTINUE INTO MONDAY. PRECIPITATION COULD BEGIN AS EITHER FREEZING RAIN OR SNOW LATE TONIGHT. PRECIPITATION SHOULD SWITCH OVER TO ALL SNOW FROM WEST TO EAST ON MONDAY. * ACCUMULATIONS...ICE ACCUMULATIONS COULD RANGE FROM A TENTH TO TWO TENTHS OF AN INCH...WITH THE GREATEST ICE ACCUMULATIONS TOWARD THE IOWA GREAT LAKES. AS PRECIPITATION TRANSITIONS TO SNOW ON MONDAY...SNOW ACCUMULATIONS OF 2 TO 3 INCHES WILL BE POSSIBLE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...SLEET...OR FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ MNZ089-090-151845- /O.UPG.KFSD.WS.A.0001.170116T0600Z-170117T0600Z/ /O.NEW.KFSD.WW.Y.0003.170116T1200Z-170117T0600Z/ NOBLES-JACKSON- INCLUDING THE CITIES OF...WORTHINGTON...JACKSON...LAKEFIELD 441 AM CST SUN JAN 15 2017 ...WINTER WEATHER ADVISORY IN EFFECT FROM 6 AM MONDAY TO MIDNIGHT CST MONDAY NIGHT... THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A WINTER WEATHER ADVISORY FOR MIXED PRECIPITATION...WHICH IS IN EFFECT FROM 6 AM MONDAY TO MIDNIGHT CST MONDAY NIGHT. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. * TIMING...A WINTRY MIX OF PRECIPITATION WILL BEGIN SPREADING NORTH INTO THE AREA ON MONDAY MORNING...AND CONTINUE INTO MONDAY EVENING. PRECIPITATION COULD BEGIN AS EITHER FREEZING RAIN OR SNOW...THEN SHOULD SWITCH OVER TO ALL SNOW FROM WEST TO EAST LATER ON MONDAY. * ACCUMULATIONS...ICE ACCUMULATIONS COULD RANGE FROM A TENTH TO TWO TENTHS OF AN INCH...WITH THE GREATEST ICE ACCUMULATIONS TOWARD THE IOWA GREAT LAKES. AS PRECIPITATION TRANSITIONS TO SNOW LATER ON MONDAY...SNOW ACCUMULATIONS OF 2 TO 3 INCHES WILL BE POSSIBLE. PRECAUTIONARY/PREPAREDNESS ACTIONS... 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. && $$ SDZ068-069-151845- /O.EXT.KFSD.WS.A.0001.170116T0900Z-170117T0600Z/ BON HOMME-YANKTON- INCLUDING THE CITIES OF...TYNDALL...SCOTLAND...SPRINGFIELD... AVON...TABOR...YANKTON 441 AM CST SUN JAN 15 2017 ...WINTER STORM WATCH NOW IN EFFECT FROM LATE TONIGHT THROUGH MONDAY EVENING... * TIMING...A WINTRY MIX OF PRECIPITATION WILL BEGIN SPREADING NORTH INTO THE AREA LATE TONIGHT AND CONTINUE INTO MONDAY. PRECIPITATION IS EXPECTED TO BEGIN AS EITHER FREEZING RAIN OR SLEET TONIGHT. PRECIPITATION SHOULD SWITCH OVER TO SNOW FROM WEST TO EAST ON MONDAY. * ACCUMULATIONS...ICE ACCUMULATIONS COULD BE AROUND A TENTH OF AN INCH. AS PRECIPITATION TRANSITIONS OVER TO SNOW ON MONDAY...MODERATE SNOW ACCUMULATIONS WILL BE POSSIBLE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR SIGNIFICANT SNOW...SLEET...OR ICE ACCUMULATIONS THAT MAY IMPACT TRAVEL. CONTINUE TO MONITOR THE LATEST FORECASTS. && $$ MNZ080-081-098-SDZ062-066-067-151845- /O.EXT.KFSD.WS.A.0001.170116T1200Z-170117T0600Z/ MURRAY-COTTONWOOD-ROCK-MINNEHAHA-TURNER-LINCOLN SD- INCLUDING THE CITIES OF...SLAYTON...FULDA...WINDOM... MOUNTAIN LAKE...LUVERNE...SIOUX FALLS...PARKER...CENTERVILLE... MARION...VIBORG...IRENE...HURLEY...CHANCELLOR...CANTON...LENNOX... TEA...HARRISBURG 441 AM CST SUN JAN 15 2017 ...WINTER STORM WATCH NOW IN EFFECT FROM MONDAY MORNING THROUGH MONDAY EVENING... * TIMING...A WINTRY MIX OF PRECIPITATION WILL BEGIN SPREADING NORTH INTO THE AREA LATE TONIGHT...AND CONTINUE THROUGH MONDAY. PRECIPITATION COULD BEGIN AS EITHER FREEZING RAIN OR SNOW LATE TONIGHT. PRECIPITATION SHOULD SWITCH OVER TO ALL SNOW FROM WEST TO EAST ON MONDAY. * ACCUMULATIONS...ICE ACCUMULATIONS COULD RANGE FROM A GLAZE TO A TENTH OF AN INCH. AS PRECIPITATION TRANSITIONS TO SNOW ON MONDAY...MODERATE SNOW ACCUMULATIONS WILL BE POSSIBLE. 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. && $$
838 WWUS43 KFSD 151831 WSWFSD URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE SIOUX FALLS SD 1231 PM CST SUN JAN 15 2017 IAZ014-021-022-031-032-NEZ014-160245- /O.CON.KFSD.IS.W.0001.170116T0600Z-170117T0600Z/ CLAY IA-CHEROKEE-BUENA VISTA-WOODBURY-IDA-DAKOTA- INCLUDING THE CITIES OF...SPENCER...CHEROKEE...STORM LAKE... SIOUX CITY...IDA GROVE...HOLSTEIN...BATTLE CREEK... SOUTH SIOUX CITY 1231 PM CST SUN JAN 15 2017 ...ICE STORM WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO MIDNIGHT CST MONDAY NIGHT... * TIMING...A WINTRY MIX OF PRECIPITATION WILL SPREAD NORTH INTO THE AREA TONIGHT AND CONTINUE INTO MONDAY. PRECIPITATION IS EXPECTED TO BEGIN AS EITHER FREEZING RAIN OR SLEET LATE TONIGHT...BECOMING ALL FREEZING RAIN EARLY ON MONDAY. PRECIPITATION IS EXPECTED TO SWITCH OVER TO SNOW ON MONDAY AFTERNOON. * ACCUMULATIONS...ICE ACCUMULATIONS OF TWO TENTHS TO A THIRD OF AN INCH ARE EXPECTED THROUGH MONDAY AFTERNOON. THEREAFTER... THE PRECIPITATION WILL TRANSITION TO SNOW...WITH 1 TO 2 INCHES OF SNOW EXPECTED. PRECAUTIONARY/PREPAREDNESS ACTIONS... AN ICE STORM WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF ICE ACCUMULATIONS WILL MAKE TRAVEL DANGEROUS OR IMPOSSIBLE. TRAVEL IS STRONGLY DISCOURAGED. COMMERCE WILL LIKELY BE SEVERELY IMPACTED. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. ICE ACCUMULATIONS AND WINDS WILL LIKELY LEAD TO SNAPPED POWER LINES AND FALLING TREE BRANCHES THAT ADD TO THE DANGER. && $$ IAZ001>003-012-013-020-NEZ013-SDZ070-071-160245- /O.CON.KFSD.WW.Y.0003.170116T0900Z-170117T0600Z/ LYON IA-OSCEOLA-DICKINSON-SIOUX-O'BRIEN-PLYMOUTH-DIXON-CLAY SD- UNION- INCLUDING THE CITIES OF...ROCK RAPIDS...GEORGE...INWOOD... LARCHWOOD...SIBLEY...SPIRIT LAKE...MILFORD...ARNOLDS PARK... SIOUX CENTER...ORANGE CITY...ROCK VALLEY...HAWARDEN...HULL... SHELDON...HARTLEY...SANBORN...LE MARS...WAKEFIELD...PONCA... ALLEN...VERMILLION...NORTH SIOUX CITY...BERESFORD...ELK POINT... ALCESTER...JEFFERSON 1231 PM CST SUN JAN 15 2017 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 3 AM MONDAY TO MIDNIGHT CST MONDAY NIGHT... * TIMING...A WINTRY MIX OF PRECIPITATION WILL BEGIN SPREADING NORTH INTO THE AREA LATE TONIGHT AND CONTINUE INTO MONDAY. PRECIPITATION IS EXPECTED TO BEGIN AS EITHER FREEZING RAIN OR SLEET LATE TONIGHT. PRECIPITATION SHOULD SWITCH OVER TO SNOW FROM WEST TO EAST ON MONDAY. * ACCUMULATIONS...ICE ACCUMULATIONS COULD RANGE FROM A TENTH TO TWO TENTHS OF AN INCH...WITH THE GREATEST ACCUMULATIONS EXPECTED ACROSS NORTHWEST IOWA...ESPECIALLY NEAR AND EAST OF HIGHWAY 60. AS PRECIPITATION TRANSITIONS OVER TO SNOW ON MONDAY...SNOW ACCUMULATIONS OF 1 TO 3 INCHES WILL BE POSSIBLE. PRECAUTIONARY/PREPAREDNESS ACTIONS... 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. && $$ MNZ089-090-160245- /O.CON.KFSD.WW.Y.0003.170116T1200Z-170117T0600Z/ NOBLES-JACKSON- INCLUDING THE CITIES OF...WORTHINGTON...JACKSON...LAKEFIELD 1231 PM CST SUN JAN 15 2017 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 6 AM MONDAY TO MIDNIGHT CST MONDAY NIGHT... * TIMING...A WINTRY MIX OF PRECIPITATION WILL BEGIN SPREADING NORTH INTO THE AREA ON MONDAY MORNING...AND CONTINUE INTO MONDAY EVENING. PRECIPITATION COULD BEGIN AS EITHER FREEZING RAIN OR SNOW...THEN SHOULD SWITCH OVER TO ALL SNOW FROM WEST TO EAST LATER ON MONDAY. * ACCUMULATIONS...ICE ACCUMULATIONS COULD RANGE FROM A TENTH TO TWO TENTHS OF AN INCH...WITH THE GREATEST ICE ACCUMULATIONS TOWARD THE IOWA GREAT LAKES. AS PRECIPITATION TRANSITIONS TO SNOW LATER ON MONDAY...SNOW ACCUMULATIONS OF 2 TO 3 INCHES WILL BE POSSIBLE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...SLEET...OR FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ SDZ068-069-160245- /O.CON.KFSD.WS.A.0001.170116T0900Z-170117T0600Z/ BON HOMME-YANKTON- INCLUDING THE CITIES OF...TYNDALL...SCOTLAND...SPRINGFIELD... AVON...TABOR...YANKTON 1231 PM CST SUN JAN 15 2017 ...WINTER STORM WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH MONDAY EVENING... * TIMING...A WINTRY MIX OF PRECIPITATION WILL BEGIN SPREADING NORTH INTO THE AREA LATE TONIGHT AND CONTINUE INTO MONDAY. PRECIPITATION IS EXPECTED TO BEGIN AS EITHER FREEZING RAIN OR SLEET TONIGHT. PRECIPITATION SHOULD SWITCH OVER TO SNOW FROM WEST TO EAST ON MONDAY. * ACCUMULATIONS...ICE ACCUMULATIONS COULD BE AROUND A TENTH OF AN INCH. AS PRECIPITATION TRANSITIONS OVER TO SNOW ON MONDAY... MODERATE SNOW ACCUMULATIONS WILL BE POSSIBLE. 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. && $$ MNZ080-081-098-SDZ062-066-067-160245- /O.CON.KFSD.WS.A.0001.170116T1200Z-170117T0600Z/ MURRAY-COTTONWOOD-ROCK-MINNEHAHA-TURNER-LINCOLN SD- INCLUDING THE CITIES OF...SLAYTON...FULDA...WINDOM... MOUNTAIN LAKE...LUVERNE...SIOUX FALLS...PARKER...CENTERVILLE... MARION...VIBORG...IRENE...HURLEY...CHANCELLOR...CANTON...LENNOX... TEA...HARRISBURG 1231 PM CST SUN JAN 15 2017 ...WINTER STORM WATCH REMAINS IN EFFECT FROM MONDAY MORNING THROUGH MONDAY EVENING... * TIMING...A WINTRY MIX OF PRECIPITATION WILL BEGIN SPREADING NORTH INTO THE AREA LATE TONIGHT...AND CONTINUE THROUGH MONDAY. PRECIPITATION COULD BEGIN AS EITHER FREEZING RAIN OR SNOW LATE TONIGHT. PRECIPITATION SHOULD SWITCH OVER TO ALL SNOW FROM WEST TO EAST ON MONDAY. * ACCUMULATIONS...ICE ACCUMULATIONS COULD RANGE FROM A GLAZE TO A TENTH OF AN INCH. AS PRECIPITATION TRANSITIONS TO SNOW ON MONDAY...MODERATE SNOW ACCUMULATIONS WILL BE POSSIBLE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR SIGNIFICANT SNOW...SLEET...OR ICE ACCUMULATIONS THAT MAY IMPACT TRAVEL. CONTINUE TO MONITOR THE LATEST FORECASTS. && $$
850 WWUS43 KFSD 152103 WSWFSD URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE SIOUX FALLS SD 303 PM CST SUN JAN 15 2017 IAZ014-021-022-031-032-NEZ014-160515- /O.CON.KFSD.IS.W.0001.170116T0600Z-170117T0600Z/ CLAY IA-CHEROKEE-BUENA VISTA-WOODBURY-IDA-DAKOTA- INCLUDING THE CITIES OF...SPENCER...CHEROKEE...STORM LAKE... SIOUX CITY...IDA GROVE...HOLSTEIN...BATTLE CREEK... SOUTH SIOUX CITY 303 PM CST SUN JAN 15 2017 ...ICE STORM WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO MIDNIGHT CST MONDAY NIGHT... * TIMING...A WINTRY MIX OF PRECIPITATION WILL SPREAD NORTH INTO THE AREA LATE TONIGHT AND CONTINUE INTO MONDAY. FREEZING RAIN WILL OCCUR...AS WELL AS SOME SLEET. AS COLDER AIR ABOVE THE SURFACE MOVES IN LATE MONDAY...THE PRECIPITATION WILL CHANGE TO LIGHT SNOW MONDAY EVENING. * ACCUMULATIONS...ICE ACCUMULATIONS OF TWO TENTHS TO A THIRD OF AN INCH ARE EXPECTED THROUGH MONDAY AFTERNOON. THEREAFTER... THE PRECIPITATION WILL TRANSITION TO SNOW...WITH AN INCH OR LESS OF SNOW EXPECTED. PRECAUTIONARY/PREPAREDNESS ACTIONS... AN ICE STORM WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF ICE ACCUMULATIONS WILL MAKE TRAVEL DANGEROUS OR IMPOSSIBLE. TRAVEL IS STRONGLY DISCOURAGED. COMMERCE WILL LIKELY BE SEVERELY IMPACTED. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. ICE ACCUMULATIONS AND WINDS WILL LIKELY LEAD TO SNAPPED POWER LINES AND FALLING TREE BRANCHES THAT ADD TO THE DANGER. && $$ SDZ068-069-160515- /O.UPG.KFSD.WS.A.0001.170116T0900Z-170117T0600Z/ /O.EXA.KFSD.WW.Y.0003.170116T1200Z-170117T0600Z/ BON HOMME-YANKTON- INCLUDING THE CITIES OF...TYNDALL...SCOTLAND...SPRINGFIELD... AVON...TABOR...YANKTON 303 PM CST SUN JAN 15 2017 ...WINTER WEATHER ADVISORY IN EFFECT FROM 6 AM MONDAY TO MIDNIGHT CST MONDAY NIGHT... THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A WINTER WEATHER ADVISORY FOR LIGHT FREEZING RAIN AND LIGHT SNOW...WHICH IS IN EFFECT FROM 6 AM MONDAY TO MIDNIGHT CST MONDAY NIGHT. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. * TIMING...A WINTRY MIX OF PRECIPITATION WILL BEGIN SPREADING NORTH INTO THE AREA LATE TONIGHT AND CONTINUE INTO MONDAY. PRECIPITATION WILL BE PRIMARILY LIGHT FREEZING RAIN...WITH ALSO A THREAT FOR SLEET NOW AND THEN. WHEN COLDER AIR ABOVE THE SURFACE BEGINS TO MOVE IN...THE PRECIPITATION WILL CHANGEOVER TO LIGHT SNOW MONDAY AFTERNOON. * ACCUMULATIONS...ICE ACCUMULATIONS WILL LIKELY STAY A TENTH OF AN INCH OR LESS...FINISHING UP WITH AN INCH OR LESS OF SNOW MONDAY AFTERNOON AND EVENING. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...SLEET...OR FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ MNZ080-081-098-SDZ062-066-067-160515- /O.UPG.KFSD.WS.A.0001.170116T1200Z-170117T0600Z/ /O.EXA.KFSD.WW.Y.0003.170116T1200Z-170117T0600Z/ MURRAY-COTTONWOOD-ROCK-MINNEHAHA-TURNER-LINCOLN SD- INCLUDING THE CITIES OF...SLAYTON...FULDA...WINDOM... MOUNTAIN LAKE...LUVERNE...SIOUX FALLS...PARKER...CENTERVILLE... MARION...VIBORG...IRENE...HURLEY...CHANCELLOR...CANTON...LENNOX... TEA...HARRISBURG 303 PM CST SUN JAN 15 2017 ...WINTER WEATHER ADVISORY IN EFFECT FROM 6 AM MONDAY TO MIDNIGHT CST MONDAY NIGHT... THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A WINTER WEATHER ADVISORY FOR LIGHT FREEZING RAIN AND LIGHT SNOW...WHICH IS IN EFFECT FROM 6 AM MONDAY TO MIDNIGHT CST MONDAY NIGHT. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. * TIMING...LIGHT FREEZING RAIN WILL MOVE NORTH INTO THE AREA EARLY MONDAY MORNING...TRANSITIONING INTO SNOW THROUGH THE AFTERNOON AND DIMINISHING MONDAY EVENING. THERE IS ALSO THREAT FOR SLEET NOW AND THEN ON MONDAY. * ACCUMULATIONS...ICE ACCUMULATIONS COULD RANGE FROM A LIGHT GLAZE ON THE NORTHERN SIDE OF THE PRECIPITATION SHIELD...TO UP TO A TENTH OF AN INCH ON THE SOUTHERN SIDE. SIOUX FALLS PROPER WILL LIKELY RECEIVE LESS THAN FIVE HUNDREDTHS OF AN INCH OF ICE. SNOW ACCUMULATIONS WILL BE MINOR...MAINLY AN INCH OR LESS. PRECAUTIONARY/PREPAREDNESS ACTIONS... 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. && $$ IAZ001>003-012-013-020-NEZ013-SDZ070-071-160515- /O.CON.KFSD.WW.Y.0003.170116T0900Z-170117T0600Z/ LYON IA-OSCEOLA-DICKINSON-SIOUX-O'BRIEN-PLYMOUTH-DIXON-CLAY SD- UNION- INCLUDING THE CITIES OF...ROCK RAPIDS...GEORGE...INWOOD... LARCHWOOD...SIBLEY...SPIRIT LAKE...MILFORD...ARNOLDS PARK... SIOUX CENTER...ORANGE CITY...ROCK VALLEY...HAWARDEN...HULL... SHELDON...HARTLEY...SANBORN...LE MARS...WAKEFIELD...PONCA... ALLEN...VERMILLION...NORTH SIOUX CITY...BERESFORD...ELK POINT... ALCESTER...JEFFERSON 303 PM CST SUN JAN 15 2017 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 3 AM MONDAY TO MIDNIGHT CST MONDAY NIGHT... * TIMING...A WINTRY MIX OF PRECIPITATION WILL SPREAD NORTH INTO THE AREA LATE TONIGHT AND CONTINUE INTO MONDAY. FREEZING RAIN WILL OCCUR...AS WELL AS SOME SLEET POSSIBLE. AS COLDER AIR ABOVE THE SURFACE MOVES IN LATE MONDAY...THE PRECIPITATION WILL CHANGE TO LIGHT SNOW LATE MONDAY AFTERNOON AND EVENING. * ACCUMULATIONS...ICE ACCUMULATIONS WILL RANGE FROM A TENTH TO TWO TENTHS OF AN INCH...FINISHING UP WITH AN INCH OR LESS OF SNOW. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...SLEET...OR FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ MNZ089-090-160515- /O.CON.KFSD.WW.Y.0003.170116T1200Z-170117T0600Z/ NOBLES-JACKSON- INCLUDING THE CITIES OF...WORTHINGTON...JACKSON...LAKEFIELD 303 PM CST SUN JAN 15 2017 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 6 AM MONDAY TO MIDNIGHT CST MONDAY NIGHT... * TIMING...LIGHT FREEZING RAIN WILL MOVE NORTH INTO THE AREA EARLY MONDAY MORNING...TRANSITIONING TO SNOW LATER MONDAY AFTERNOON AND EVENING. THERE IS ALSO THREAT FOR SLEET NOW AND THEN ON MONDAY. * ACCUMULATIONS...ICE ACCUMULATIONS WILL AVERAGE A TENTH OF AN INCH OR LESS ON MONDAY...FINISHING UP WITH AROUND AN INCH OF SNOW LATER MONDAY AFTERNOON AND EVENING. PRECAUTIONARY/PREPAREDNESS ACTIONS... 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. && $$
461 WWUS43 KFSD 160321 WSWFSD URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE SIOUX FALLS SD 921 PM CST SUN JAN 15 2017 IAZ014-021-022-031-032-NEZ014-161130- /O.CON.KFSD.IS.W.0001.170116T0600Z-170117T0600Z/ CLAY IA-CHEROKEE-BUENA VISTA-WOODBURY-IDA-DAKOTA- INCLUDING THE CITIES OF...SPENCER...CHEROKEE...STORM LAKE... SIOUX CITY...IDA GROVE...HOLSTEIN...BATTLE CREEK... SOUTH SIOUX CITY 921 PM CST SUN JAN 15 2017 ...ICE STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CST MONDAY NIGHT... * TIMING...A WINTRY MIX OF PRECIPITATION WILL SPREAD NORTH INTO THE AREA LATE TONIGHT AND CONTINUE INTO MONDAY. FREEZING RAIN WILL OCCUR...AS WELL AS SOME SLEET. AS COLDER AIR ABOVE THE SURFACE MOVES IN LATE MONDAY...THE PRECIPITATION WILL CHANGE TO LIGHT SNOW MONDAY EVENING. * ACCUMULATIONS...ICE ACCUMULATIONS OF TWO TENTHS TO A THIRD OF AN INCH ARE EXPECTED THROUGH MONDAY AFTERNOON. THEREAFTER... THE PRECIPITATION WILL TRANSITION TO SNOW...WITH AN INCH OR LESS OF SNOW EXPECTED. PRECAUTIONARY/PREPAREDNESS ACTIONS... AN ICE STORM WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF ICE ACCUMULATIONS WILL MAKE TRAVEL DANGEROUS OR IMPOSSIBLE. TRAVEL IS STRONGLY DISCOURAGED. COMMERCE WILL LIKELY BE SEVERELY IMPACTED. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. ICE ACCUMULATIONS AND WINDS WILL LIKELY LEAD TO SNAPPED POWER LINES AND FALLING TREE BRANCHES THAT ADD TO THE DANGER. && $$ IAZ001>003-012-013-020-NEZ013-SDZ070-071-161130- /O.CON.KFSD.WW.Y.0003.170116T0900Z-170117T0600Z/ LYON IA-OSCEOLA-DICKINSON-SIOUX-O'BRIEN-PLYMOUTH-DIXON-CLAY SD- UNION- INCLUDING THE CITIES OF...ROCK RAPIDS...GEORGE...INWOOD... LARCHWOOD...SIBLEY...SPIRIT LAKE...MILFORD...ARNOLDS PARK... SIOUX CENTER...ORANGE CITY...ROCK VALLEY...HAWARDEN...HULL... SHELDON...HARTLEY...SANBORN...LE MARS...WAKEFIELD...PONCA... ALLEN...VERMILLION...NORTH SIOUX CITY...BERESFORD...ELK POINT... ALCESTER...JEFFERSON 921 PM CST SUN JAN 15 2017 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 3 AM MONDAY TO MIDNIGHT CST MONDAY NIGHT... * TIMING...A WINTRY MIX OF PRECIPITATION WILL SPREAD NORTH INTO THE AREA LATE TONIGHT AND CONTINUE INTO MONDAY. FREEZING RAIN WILL BE THE PRIMARY PRECIPITATION TYPE...ALTHOUGH SOME SLEET IS ALSO POSSIBLE. THE PRECIPITATION WILL GRADUALLY CHANGE TO LIGHT SNOW LATE MONDAY AFTERNOON AND EVENING...AS COLDER AIR ABOVE THE SURFACE MOVES INTO THE REGION. * ACCUMULATIONS...ICE ACCUMULATIONS WILL RANGE FROM A TENTH TO TWO TENTHS OF AN INCH...FINISHING UP WITH AN INCH OR LESS OF SNOW. PRECAUTIONARY/PREPAREDNESS ACTIONS... 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. && $$ MNZ080-081-089-090-098-SDZ062-066>069-161130- /O.CON.KFSD.WW.Y.0003.170116T1200Z-170117T0600Z/ MURRAY-COTTONWOOD-NOBLES-JACKSON-ROCK-MINNEHAHA-TURNER-LINCOLN SD- BON HOMME-YANKTON- INCLUDING THE CITIES OF...SLAYTON...FULDA...WINDOM... MOUNTAIN LAKE...WORTHINGTON...JACKSON...LAKEFIELD...LUVERNE... SIOUX FALLS...PARKER...CENTERVILLE...MARION...VIBORG...IRENE... HURLEY...CHANCELLOR...CANTON...LENNOX...TEA...HARRISBURG... TYNDALL...SCOTLAND...SPRINGFIELD...AVON...TABOR...YANKTON 921 PM CST SUN JAN 15 2017 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 6 AM MONDAY TO MIDNIGHT CST MONDAY NIGHT... * TIMING...A WINTRY MIX OF PRECIPITATION WILL BEGIN SPREADING NORTH INTO THE AREA LATE TONIGHT AND CONTINUE INTO MONDAY. PRECIPITATION WILL BE PRIMARILY LIGHT FREEZING RAIN OR FREEZING DRIZZLE. THE PRECIPITATION WILL GRADUALLY CHANGE TO LIGHT SNOW LATE MONDAY AFTERNOON AND EVENING...AS COLDER AIR ABOVE THE SURFACE MOVES INTO THE REGION. * ACCUMULATIONS...ICE ACCUMULATIONS WILL LIKELY STAY A TENTH OF AN INCH OR LESS...FOLLOWED BY LESS THAN AN INCH OF SNOW. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...SLEET...OR FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$
061 WWUS43 KFSD 160950 WSWFSD URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE SIOUX FALLS SD 350 AM CST MON JAN 16 2017 IAZ014-021-022-031-032-NEZ014-161800- /O.CON.KFSD.IS.W.0001.000000T0000Z-170117T0600Z/ CLAY IA-CHEROKEE-BUENA VISTA-WOODBURY-IDA-DAKOTA- INCLUDING THE CITIES OF...SPENCER...CHEROKEE...STORM LAKE... SIOUX CITY...IDA GROVE...HOLSTEIN...BATTLE CREEK... SOUTH SIOUX CITY 350 AM CST MON JAN 16 2017 ...ICE STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CST TONIGHT... * TIMING...A WINTRY MIX OF PRECIPITATION WILL CONTINUE TO SPREAD NORTHWARD INTO THE AREA TODAY...WITH HEAVIEST PRECIPITATION OCCURRING THIS AFTERNOON. FREEZING RAIN WILL OCCUR...AS WELL AS SOME ISOLATED POCKETS OF SLEET. AS COLDER AIR ABOVE THE SURFACE MOVES IN THIS EVENING...THE PRECIPITATION WILL CHANGE TO LIGHT SNOW. * ACCUMULATIONS...ICE ACCUMULATIONS OF TWO TENTHS TO A THIRD OF AN INCH ARE EXPECTED THROUGH LATE THIS AFTERNOON. THEREAFTER... THE PRECIPITATION WILL TRANSITION TO SNOW...WITH A HALF AN INCH OR LESS OF SNOW EXPECTED. PRECAUTIONARY/PREPAREDNESS ACTIONS... AN ICE STORM WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF ICE ACCUMULATIONS WILL MAKE TRAVEL DANGEROUS OR IMPOSSIBLE. TRAVEL IS STRONGLY DISCOURAGED. COMMERCE WILL LIKELY BE SEVERELY IMPACTED. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. ICE ACCUMULATIONS AND WINDS WILL LIKELY LEAD TO SNAPPED POWER LINES AND FALLING TREE BRANCHES THAT ADD TO THE DANGER. && $$ IAZ001>003-012-013-020-NEZ013-SDZ070-071-161800- /O.CON.KFSD.WW.Y.0003.000000T0000Z-170117T0600Z/ LYON IA-OSCEOLA-DICKINSON-SIOUX-O'BRIEN-PLYMOUTH-DIXON-CLAY SD- UNION- INCLUDING THE CITIES OF...ROCK RAPIDS...GEORGE...INWOOD... LARCHWOOD...SIBLEY...SPIRIT LAKE...MILFORD...ARNOLDS PARK... SIOUX CENTER...ORANGE CITY...ROCK VALLEY...HAWARDEN...HULL... SHELDON...HARTLEY...SANBORN...LE MARS...WAKEFIELD...PONCA... ALLEN...VERMILLION...NORTH SIOUX CITY...BERESFORD...ELK POINT... ALCESTER...JEFFERSON 350 AM CST MON JAN 16 2017 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CST TONIGHT... * TIMING...A WINTRY MIX OF PRECIPITATION WILL CONTINUE TO SPREAD NORTHWARD INTO THE AREA TODAY...WITH HEAVIEST PRECIPITATION OCCURRING THIS AFTERNOON. FREEZING RAIN WILL OCCUR...AS WELL AS SOME ISOLATED POCKETS OF SLEET. AS COLDER AIR ABOVE THE SURFACE MOVES IN THIS EVENING...THE PRECIPITATION WILL CHANGE TO LIGHT SNOW. * ACCUMULATIONS...ICE ACCUMULATIONS WILL RANGE FROM A TENTH TO TWO TENTHS OF AN INCH...FINISHING UP WITH A HALF AN INCH OR LESS OF SNOW. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...SLEET...OR FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ MNZ080-081-089-090-098-SDZ062-066>069-161800- /O.CON.KFSD.WW.Y.0003.170116T1200Z-170117T0600Z/ MURRAY-COTTONWOOD-NOBLES-JACKSON-ROCK-MINNEHAHA-TURNER-LINCOLN SD- BON HOMME-YANKTON- INCLUDING THE CITIES OF...SLAYTON...FULDA...WINDOM... MOUNTAIN LAKE...WORTHINGTON...JACKSON...LAKEFIELD...LUVERNE... SIOUX FALLS...PARKER...CENTERVILLE...MARION...VIBORG...IRENE... HURLEY...CHANCELLOR...CANTON...LENNOX...TEA...HARRISBURG... TYNDALL...SCOTLAND...SPRINGFIELD...AVON...TABOR...YANKTON 350 AM CST MON JAN 16 2017 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CST TONIGHT... * TIMING...A WINTRY MIX OF PRECIPITATION WILL CONTINUE TO SPREAD NORTHWARD INTO THE AREA TODAY...WITH HEAVIEST PRECIPITATION OCCURRING THIS AFTERNOON. FREEZING RAIN WILL OCCUR...AS WELL AS SOME ISOLATED POCKETS OF SLEET. AS COLDER AIR ABOVE THE SURFACE MOVES IN THIS EVENING...THE PRECIPITATION WILL CHANGE TO LIGHT SNOW. * ACCUMULATIONS...ICE ACCUMULATIONS WILL LIKELY RANGE FROM A LIGHT GLAZE TO A TENTH OF AN INCH...FOLLOWED BY LESS THAN A HALF AN INCH OF SNOW. PRECAUTIONARY/PREPAREDNESS ACTIONS... 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. && $$
889 WWUS43 KFSD 161802 WSWFSD URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE SIOUX FALLS SD 1202 PM CST MON JAN 16 2017 IAZ014-021-022-031-032-NEZ014-170215- /O.CON.KFSD.IS.W.0001.000000T0000Z-170117T0600Z/ CLAY IA-CHEROKEE-BUENA VISTA-WOODBURY-IDA-DAKOTA- INCLUDING THE CITIES OF...SPENCER...CHEROKEE...STORM LAKE... SIOUX CITY...IDA GROVE...HOLSTEIN...BATTLE CREEK... SOUTH SIOUX CITY 1202 PM CST MON JAN 16 2017 ...ICE STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CST TONIGHT... * TIMING...THE HEAVIEST PORTION OF THE FREEZING RAIN WILL OCCUR DURING THE AFTERNOON HOURS...THEN WILL DIMINISH THIS EVENING. FURTHERMORE...THE PRECIPITATION WILL CHANGE OVER TO A WINTRY MIX OF SLEET AND SNOW AS THE EVENING PROGRESSES BUT WILL BE VERY LIGHT BY THEN. * ACCUMULATIONS...ICE ACCUMULATIONS OF TWO TENTHS TO A THIRD OF AN INCH WILL OCCUR. BY THIS EVENING...THE PRECIPITATION WILL TRANSITION OVER TO LIGHT SLEET AND SNOW WITH AN INCH OF LESS EXPECTED. PRECAUTIONARY/PREPAREDNESS ACTIONS... AN ICE STORM WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF ICE ACCUMULATIONS WILL MAKE TRAVEL DANGEROUS OR IMPOSSIBLE. TRAVEL IS STRONGLY DISCOURAGED. COMMERCE WILL LIKELY BE SEVERELY IMPACTED. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. ICE ACCUMULATIONS AND WINDS WILL LIKELY LEAD TO SNAPPED POWER LINES AND FALLING TREE BRANCHES THAT ADD TO THE DANGER. && $$ IAZ001>003-012-013-020-NEZ013-SDZ070-071-170215- /O.CON.KFSD.WW.Y.0003.000000T0000Z-170117T0600Z/ LYON IA-OSCEOLA-DICKINSON-SIOUX-O'BRIEN-PLYMOUTH-DIXON-CLAY SD- UNION- INCLUDING THE CITIES OF...ROCK RAPIDS...GEORGE...INWOOD... LARCHWOOD...SIBLEY...SPIRIT LAKE...MILFORD...ARNOLDS PARK... SIOUX CENTER...ORANGE CITY...ROCK VALLEY...HAWARDEN...HULL... SHELDON...HARTLEY...SANBORN...LE MARS...WAKEFIELD...PONCA... ALLEN...VERMILLION...NORTH SIOUX CITY...BERESFORD...ELK POINT... ALCESTER...JEFFERSON 1202 PM CST MON JAN 16 2017 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CST TONIGHT... * TIMING...FREEZING RAIN WILL OCCUR THIS AFTERNOON...THEN TRANSITION OVER TO A MIX OF SLEET AND SNOW LATE THIS AFTERNOON AND EVENING. * ACCUMULATIONS...ICE ACCUMULATIONS WILL RANGE FROM A TENTH TO JUST OVER TWO TENTHS OF AN INCH...FINISHING UP WITH AROUND AN INCH OF SNOWFALL THIS EVENING. PRECAUTIONARY/PREPAREDNESS ACTIONS... 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. && $$ MNZ080-081-089-090-098-SDZ062-066>069-170215- /O.CON.KFSD.WW.Y.0003.000000T0000Z-170117T0600Z/ MURRAY-COTTONWOOD-NOBLES-JACKSON-ROCK-MINNEHAHA-TURNER-LINCOLN SD- BON HOMME-YANKTON- INCLUDING THE CITIES OF...SLAYTON...FULDA...WINDOM... MOUNTAIN LAKE...WORTHINGTON...JACKSON...LAKEFIELD...LUVERNE... SIOUX FALLS...PARKER...CENTERVILLE...MARION...VIBORG...IRENE... HURLEY...CHANCELLOR...CANTON...LENNOX...TEA...HARRISBURG... TYNDALL...SCOTLAND...SPRINGFIELD...AVON...TABOR...YANKTON 1202 PM CST MON JAN 16 2017 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CST TONIGHT... * TIMING...LIGHT FREEZING RAIN AND FREEZING DRIZZLE WILL OCCUR THIS AFTERNOON...TRANSITIONING OVER TO LIGHT SLEET OR LIGHT SNOW LATE THIS AFTERNOON AND EVENING. * ACCUMULATIONS...ICE ACCUMULATIONS WILL RANGE FROM A LIGHT GLAZE TO A TENTH OF AN INCH...FOLLOWED BY AN INCH OR LESS OF SNOWFALL. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...SLEET...OR FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$
067 WWUS43 KFSD 162127 WSWFSD URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE SIOUX FALLS SD 327 PM CST MON JAN 16 2017 IAZ014-021-022-031-032-NEZ014-170530- /O.EXB.KFSD.WW.Y.0003.170117T0100Z-170117T0600Z/ /O.EXT.KFSD.IS.W.0001.000000T0000Z-170117T0100Z/ CLAY IA-CHEROKEE-BUENA VISTA-WOODBURY-IDA-DAKOTA- INCLUDING THE CITIES OF...SPENCER...CHEROKEE...STORM LAKE... SIOUX CITY...IDA GROVE...HOLSTEIN...BATTLE CREEK... SOUTH SIOUX CITY 327 PM CST MON JAN 16 2017 ...ICE STORM WARNING NOW IN EFFECT UNTIL 7 PM CST THIS EVENING... ...WINTER WEATHER ADVISORY IN EFFECT FROM 7 PM THIS EVENING TO MIDNIGHT CST TONIGHT... THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A WINTER WEATHER ADVISORY FOR MIXED PRECIPITATION...WHICH IS IN EFFECT FROM 7 PM THIS EVENING TO MIDNIGHT CST TONIGHT. * TIMING...FREEZING RAIN WILL TRANSITION OVER TO A MIX OF SLEET AND SNOW LATE THIS AFTERNOON AND EVENING. * ACCUMULATIONS...TOTAL ICE ACCUMULATIONS OF TWO TENTHS TO A THIRD OF AN INCH...FINISHING UP WITH UP TO 2 INCHES OF SNOWFALL THIS EVENING. PRECAUTIONARY/PREPAREDNESS ACTIONS... 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. && $$ IAZ001>003-012-013-020-NEZ013-SDZ070-071-170530- /O.CON.KFSD.WW.Y.0003.000000T0000Z-170117T0600Z/ LYON IA-OSCEOLA-DICKINSON-SIOUX-O'BRIEN-PLYMOUTH-DIXON-CLAY SD- UNION- INCLUDING THE CITIES OF...ROCK RAPIDS...GEORGE...INWOOD... LARCHWOOD...SIBLEY...SPIRIT LAKE...MILFORD...ARNOLDS PARK... SIOUX CENTER...ORANGE CITY...ROCK VALLEY...HAWARDEN...HULL... SHELDON...HARTLEY...SANBORN...LE MARS...WAKEFIELD...PONCA... ALLEN...VERMILLION...NORTH SIOUX CITY...BERESFORD...ELK POINT... ALCESTER...JEFFERSON 327 PM CST MON JAN 16 2017 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CST TONIGHT... * TIMING...FREEZING RAIN WILL TRANSITION OVER TO A MIX OF SLEET AND SNOW LATE THIS AFTERNOON AND EVENING. * ACCUMULATIONS...TOTAL ICE ACCUMULATIONS WILL RANGE FROM A TENTH TO JUST OVER TWO TENTHS OF AN INCH...FINISHING UP WITH UP TO 2 INCHES OF SNOWFALL THIS EVENING. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...SLEET...OR FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ MNZ080-081-089-090-098-SDZ062-066>069-170530- /O.CON.KFSD.WW.Y.0003.000000T0000Z-170117T0600Z/ MURRAY-COTTONWOOD-NOBLES-JACKSON-ROCK-MINNEHAHA-TURNER-LINCOLN SD- BON HOMME-YANKTON- INCLUDING THE CITIES OF...SLAYTON...FULDA...WINDOM... MOUNTAIN LAKE...WORTHINGTON...JACKSON...LAKEFIELD...LUVERNE... SIOUX FALLS...PARKER...CENTERVILLE...MARION...VIBORG...IRENE... HURLEY...CHANCELLOR...CANTON...LENNOX...TEA...HARRISBURG... TYNDALL...SCOTLAND...SPRINGFIELD...AVON...TABOR...YANKTON 327 PM CST MON JAN 16 2017 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CST TONIGHT... * TIMING...LIGHT FREEZING RAIN AND FREEZING DRIZZLE WILL TRANSITION OVER TO LIGHT SLEET OR LIGHT SNOW LATE THIS AFTERNOON AND EVENING. * ACCUMULATIONS...TOTAL ICE ACCUMULATIONS WILL RANGE FROM A LIGHT GLAZE TO A TENTH OF AN INCH...FOLLOWED BY AN INCH OR LESS OF SNOWFALL. PRECAUTIONARY/PREPAREDNESS ACTIONS... 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. && $$
What forecasters said that day
The local office's own words before this ice storm warning 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 ice storm warning went out at Jan 14, 3:35 PM CST, 20 minutes earlier.
Area forecast discussion, Jan 14, 3:35 PM CST, 20 minutes before
Area Forecast Discussion
National Weather Service Sioux Falls SD
335 PM CST Sat Jan 14 2017
.SHORT TERM...(This evening through Sunday)
Issued at 335 PM CST Sat Jan 14 2017
Quiet weather in store this evening through much on Sunday, ahead of
the upcoming storm system. Temperatures have warmed nicely this
afternoon, with broad surface high pressure overhead bringing light
winds and ample sunshine. Light and variable winds continue into the
overnight hours, gradually becoming light from the south around
daybreak. Overnight lows will be fairly tricky with light surface
winds, mostly clear skies, but milder warm air advection. Went with
similar readings to last night's lows, dropping temperatures
slightly towards colder guidance in the Huron through Brookings
corridor where snowpack is a little more substantial. Lows will
mainly be in the single digits above zero.
Southerly flow increases on Sunday, taping into warm air advection
and increased moisture through the day. Clouds will be on the
increase from the south in the afternoon, but general model
consensus indicates that any precipitation will hold off during the
afternoon. Temperatures on Sunday will be quite mild, especially in
the Missouri Valley where readings near freezing will be possible.
Elsewhere, highs will be in the mid 20s to near 30.
.LONG TERM...(Sunday night through Saturday)
Issued at 335 PM CST Sat Jan 14 2017
Medium range continues to focus on winter storm that is expected to
impact the Midwest Sunday night into Monday. System is currently in
the Baja of California, and is expect to lift northeast into the
Midwest over the next 24 hours. Ahead of the wave, there is strong
moisture advection resulting around 850 hpa wet bulb temperatures
remaining above freezing across at least the eastern half of the
forecast area. With isentropic lift increasing as the wave lifts
northeast, expect precipitation to develop and lift north through
the area Sunday night into Monday morning. Strongest lift on 290K
surface begins in earnest around 09Z Monday morning. Models at this
point are differing greatly in precipitation amounts, with the ECMWF
and GFS remaining on the low side of amounts and the NAM forecasting
nearly a half of an inch. After coordination with surrounding
offices, ended up blending Superblend QPF amounts with WPC amounts
which favored a 00Z EC/UkMet and 12Z GFS blend. Overall, this slowed
the advancement of QPF slightly, and placed a greater emphasis on
the 18-00Z time frame Monday across northwest Iowa. This is not to
take away from the 12-18Z QPF, as it is the time period when
widespread icing is most significant.
Have also raised pops significantly through the duration of the
event. Significant questions still remain however. Interaction
between the southern stream system and shortwave cutting across in
the northern branch of the jet remains uncertain, affecting both QPF
amounts and precipitation type with each solution. As such, have
only upgraded most confident area for significant icing into an ice
storm warning. This is not to say that those areas will be snow
free, but the ice will be the primary element creating the greatest
impact. Further to the north, there will be a combination of ice and
snow as the cooler air works in from the west, but how quickly the
change over occurs is still murky. Still looks like the potential
for a swath of 2-4" of snow on the northern edge of the heaviest
icing.
With the focus on the late weekend storm, have not made any changes
to the extended, but does appear to be much warmer late in the week
ahead of another approaching system next weekend. For now, have not
adjusted pops, but models have been fairly consistent with this
system, so will likely have to raise pops in future forecasts.
&&
.AVIATION...(For the 18Z TAFS through 18Z Sunday afternoon)
Issued at 1123 AM CST Sat Jan 14 2017
VFR conditions are expected through the TAF period.
&&
.FSD WATCHES/WARNINGS/ADVISORIES...
SD...Winter Storm Watch from Sunday evening through Monday evening
for SDZ062-066>071.
MN...Winter Storm Watch from Sunday evening through Monday evening
for MNZ080-081-089-090-098.
IA...Winter Storm Watch from Sunday evening through Monday evening
for IAZ001>003-012-013-020.
Ice Storm Warning from 6 PM Sunday to midnight CST Monday night
for IAZ014-021-022-031-032.
NE...Winter Storm Watch from Sunday evening through Monday evening
for NEZ013.
Ice Storm Warning from 6 PM Sunday to midnight CST Monday night
for NEZ014.
&&
SHORT TERM...
LONG TERM...BT
AVIATION...Hazardous weather outlook, Jan 14, 4:33 AM CST, 11 hours 22 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE SIOUX FALLS SD 433 AM CST SAT JAN 14 2017 IAZ001>003-012>014-020>022-031-032-MNZ080-081-089-090-098-NEZ013- 014-SDZ062-066>071-151045- LYON IA-OSCEOLA-DICKINSON-SIOUX-O'BRIEN-CLAY IA-PLYMOUTH-CHEROKEE- BUENA VISTA-WOODBURY-IDA-MURRAY-COTTONWOOD-NOBLES-JACKSON-ROCK- DIXON-DAKOTA-MINNEHAHA-TURNER-LINCOLN SD-BON HOMME-YANKTON- CLAY SD-UNION- 433 AM CST SAT JAN 14 2017 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHWEST IOWA...WEST CENTRAL IOWA...SOUTHWEST MINNESOTA...NORTHEAST NEBRASKA AND SOUTHEAST SOUTH DAKOTA. .DAY ONE...TODAY AND TONIGHT HAZARDOUS WEATHER IS NOT EXPECTED THROUGH TONIGHT. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY A STRONG STORM SYSTEM WILL LIFT NORTHEASTWARD INTO THE AREA ON SUNDAY NIGHT AND MONDAY. WHILE SOME UNCERTAINTY STILL REMAINS WITH THE EXACT TRACK OF THIS SYSTEM...IT IS APPEARING MORE LIKELY THAT ACCUMULATING FREEZING RAIN WILL OCCUR ON SUNDAY NIGHT INTO EARLY ON MONDAY...BEFORE TRANSITIONING TO SNOW ON MONDAY AFTERNOON. AT THIS TIME...ICE ACCUMULATION THROUGH THE PERIOD IS LOOKING TO RANGE FROM AROUND A TENTH UP TO A QUARTER OF AN INCH...WITH HIGHER AMOUNTS POSSIBLE. MODERATE SNOW AMOUNTS WILL THEN BE POSSIBLE ON MONDAY AFTERNOON AND MONDAY NIGHT. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED. MNZ071-072-097-SDZ038>040-050-052>061-063>065-151045- LINCOLN MN-LYON MN-PIPESTONE-BEADLE-KINGSBURY-BROOKINGS-GREGORY- JERAULD-SANBORN-MINER-LAKE-MOODY-BRULE-AURORA-DAVISON-HANSON- MCCOOK-CHARLES MIX-DOUGLAS-HUTCHINSON- 433 AM CST SAT JAN 14 2017 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHWEST MINNESOTA...CENTRAL SOUTH DAKOTA...EAST CENTRAL SOUTH DAKOTA... SOUTH CENTRAL SOUTH DAKOTA AND SOUTHEAST SOUTH DAKOTA. .DAY ONE...TODAY AND TONIGHT HAZARDOUS WEATHER IS NOT EXPECTED THROUGH TONIGHT. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY A STRONG STORM SYSTEM WILL LIFT NORTHEASTWARD INTO THE AREA ON SUNDAY NIGHT AND MONDAY. WHILE SOME UNCERTAINTY STILL REMAINS WITH THE EXACT TRACK OF THIS SYSTEM...IT IS APPEARING MORE LIKELY THAT FREEZING RAIN...SLEET AND SNOW WILL OCCUR ON SUNDAY NIGHT INTO MONDAY NIGHT. LIGHT ACCUMULATIONS OF ICE AND SNOW ARE POSSIBLE. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED.
Nearby
Ice Storm Warnings in Iowa, 2017Ice Storm Warnings in Nebraska, 2017Every ice storm warning in 2017
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.