THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A WINTER
STORM WATCH…WHICH IS IN EFFECT FROM THURSDAY MORNING THROUGH
LATE THURSDAY NIGHT.
* TIMING…BITTERLY COLD WIND CHILL VALUES THIS MORNING. LIGHT
SNOW EXPECTED TO DEVELOP WEDNESDAY NIGHT MAY BECOME HEAVY AT
TIMES THURSDAY AND THURSDAY NIGHT.
* ACCUMULATIONS…6 TO 12 INCHES POSSIBLE THURSDAY AND THURSDAY
* WIND AND VISIBILITY…NORTH TO NORTHWEST WINDS 15 TO 30 MPH
THIS MORNING. EAST TO NORTHEAST WINDS 15 TO 25 MPH THURSDAY AND
THURSDAY EVENING. VISIBILITY A HALF MILE OR LESS AT TIMES IN
SNOW AND BLOWING SNOW THURSDAY AND THURSDAY NIGHT.
* WIND CHILL VALUES…20 TO 30 BELOW ZERO THIS MORNING.
A WIND CHILL ADVISORY IS ISSUED WHEN A STRONG WIND WILL COMBINE
WITH COLD TEMPERATURES TO CREATE DANGEROUSLY COLD CONDITIONS FOR
EXPOSED SKIN. THE WIND WILL MAKE IT FEEL LIKE IT IS 20 DEGREES
BELOW ZERO OR COLDER FOR A PERIOD OF SEVERAL HOURS. THOSE
PLANNING TO VENTURE OUTDOORS SHOULD DRESS WARMLY…MAKING SURE
THAT ALL EXPOSED SKIN IS COVERED.
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.
THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST SOUTH DAKOTA…
SOUTHWEST MINNESOTA…NORTHWEST IOWA…AND NORTHEAST NEBRASKA.
.DAY ONE…TODAY AND TONIGHT
LINGERING STRONG NORTH TO NORTHWEST WINDS WILL COMBINE WITH
BITTERLY COLD AIR TO PRODUCE WIND CHILLS OF 20 TO 30 BELOW ZERO
THIS MORNING…EXCEPT 10 TO 20 BELOW ZERO CLOSE TO THE MISSOURI
.DAYS TWO THROUGH SEVEN…WEDNESDAY THROUGH MONDAY
HEAVY SNOW IS EXPECTED OVER THE AREA THURSDAY AND THURSDAY NIGHT.
THE WINTER STORM CONDITIONS MAY BEGIN LATE WEDNESDAY NIGHT NEAR
AND SOUTHWEST OF A CHAMBERLAIN TO MITCHELL TO YANKTON SOUTH
DAKOTA LINE…AND MAY CONTINUE INTO FRIDAY IN SOUTHWEST
MINNESOTA. THE HEAVY SNOW MAY BE ACCOMPANIED BY AREAS OF BLOWING
ANOTHER LOW PRESSURE SYSTEM APPROACHING LATE THIS WEEKEND MAY
THREATEN WINTER STORM CONDITIONS AGAIN SUNDAY OR MONDAY. THIS
SECOND POTENTIAL STORM IS FAR FROM CERTAIN…BUT IF IT
DEVELOPS…COULD PRODUCE MORE WIND AND BLOWING SNOW THAN THE
FIRST STORM THIS WEEK.
Today Sunny, with a steady temperature around 2. Wind chill values as low as -25. Blustery, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph.
Tonight Mostly clear, with a low around -5. North northwest wind 5 to 10 mph becoming east northeast after midnight.
Wednesday Increasing clouds, with a high near 19. Wind chill values as low as -19. East southeast wind 5 to 15 mph.
Wednesday Night A chance of snow after midnight. Cloudy, with a low around 12. East wind around 15 mph. Chance of precipitation is 40%.
Thursday Snow likely with areas of blowing snow before noon, then snow with areas of blowing snow after noon. High near 18. Blustery, with a east wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New snow accumulation of around 7-9 inches.
Thursday Night Snow. Low around 12. Chance of precipitation is 90%. New snow accumulation of around an inch possible.
Friday A chance of snow, mainly before noon. Cloudy, with a high near 21. Chance of precipitation is 50%.
Friday Night Mostly cloudy, with a low around 5.
Widespread snowfall is expected to push into Central South Dakota Wednesday Night, then spread east through the remainder of the forecast area on Thursday. Snow will begin tapering off late Thursday Night. Exact snowfall amounts remain uncertain, but much of the region is likely to see storm total amounts greater than 6 inches, with South Central South Dakota possibly nearing 10 inches. Those planning to travel late this week should continue to monitor the potentially hazardous travel conditions. A Winter Storm Watch is in effect.
Looking at these two models, we have quite a system coming in, based upon one model we could get up to a foot of snow, another model, we could see as low as 4 inches, however, looking at these, We are going to say around 7 to 9 inches of snow coming from this system, as it moves through the area. This snow fall should start in the early morning hours, and continue through the day, and ending by the evening hours.