UPDATE – BLIZZARD TO MOVE THROUGH PORTIONS OF THE NORTHERN PLAINS CHRISTMAS DAY

 

Sent: 10:21 MST on 12-24-2016
...BLIZZARD TO MOVE THROUGH PORTIONS OF THE NORTHERN PLAINS 
CHRISTMAS DAY... 
 
.A STRONG LOW PRESSURE SYSTEM WILL CROSS THE ROCKIES SATURDAY 
NIGHT AND RAPIDLY DEVELOP OVER THE NORTHERN PLAINS ON SUNDAY. 
THIS SYSTEM WILL BRING A WIDE VARIETY OF WEATHER TO THE AREA... 
 
ALONG WITH STRONG NORTHWESTERLY WINDS. SNOW WILL DEVELOP ACROSS 
NORTHEAST WYOMING AND MUCH OF WESTERN SOUTH DAKOTA EARLY SUNDAY... 
BECOMING MODERATE TO HEAVY AT TIMES IN MANY AREAS BY LATE 
MORNING. A MIX OF FREEZING RAIN...SLEET...AND SNOW OVER SOUTH 
CENTRAL SOUTH DAKOTA EARLY SUNDAY WILL BECOME ALL RAIN BY LATE 
MORNING. STRONG NORTHWEST WINDS WILL THEN DEVELOP DURING THE 
MIDDAY AND AFTERNOON HOURS FROM WEST TO EAST AS THE LOW PRESSURE 
SYSTEM MOVES QUICKLY NORTH AND EAST OF THE AREA. THE STRONGEST 
WINDS WILL BE ACROSS THE WESTERN SOUTH DAKOTA PLAINS DURING THE 
LATE AFTERNOON AND EVENING HOURS...WITH GUSTS TO OVER 60 MPH 
PRODUCING BLIZZARD CONDITIONS IN MOST AREAS. WINDS WILL GRADUALLY 
TAPER OFF LATE SUNDAY NIGHT AND MONDAY MORNING. TRAVEL WILL BE 
DIFFICULT TO IMPOSSIBLE IN MANY AREAS. THE STRONG WINDS COULD 
ALSO LEAD TO POWER OUTAGES AND TREE DAMAGE. LISTEN TO NOAA 
WEATHER RADIO...YOUR LOCAL MEDIA...OR CHECK THE WEB FOR THE 
LATEST UPDATES ON THIS DANGEROUS STORM. 
 
...WINTER STORM WARNING REMAINS IN EFFECT FROM 6 AM SUNDAY TO 
NOON MST MONDAY... 
 
* SNOW WILL DEVELOP SUNDAY MORNING...BECOMING MODERATE TO HEAVY AT 
TIMES DURING THE LATE MORNING AND AFTERNOON HOURS. SNOW WILL 
TAPER OFF SUNDAY NIGHT. 
 
* GUSTY NORTHWEST WINDS SUNDAY AFTERNOON THROUGH EARLY MONDAY 
WILL PRODUCE AREAS OF BLOWING AND DRIFTING SNOW. 
 
* TOTAL SNOW ACCUMULATIONS OF 4 TO 8 INCHES ARE EXPECTED AT THIS 
TIME. 
 
* LOOK FOR SIGNIFICANT REDUCTIONS IN VISIBILITY AT TIMES. DAMAGE 
TO TREES AND POWER LINES IS POSSIBLE. 
 
* PLAN ON DIFFICULT DRIVING CONDITIONS.
Instructions: A WINTER STORM WARNING FOR SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED. IF YOU MUST TRAVEL…KEEP AN EXTRA FLASHLIGHT…FOOD AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. THE LATEST ROAD CONDITIONS FOR THE STATE YOU ARE CALLING FROM CAN BE OBTAINED BY CALLING 5 1 1.
Target Area: Central Black Hills, Northern Black Hills

Seven day detailed Forecast, Custer, SD. December 24, 2016

Tonight
A 20 percent chance of snow after 11pm. Cloudy, with a low around 20. East wind 6 to 8 mph becoming west after midnight.
Christmas Day
Snow. Areas of blowing snow after 11am. Temperature rising to near 28 by 11am, then falling to around 11 during the remainder of the day. Wind chill values between -7 and 3. Northeast wind 7 to 12 mph becoming northwest 13 to 18 mph in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 7 inches possible.
Sunday Night
Snow likely, mainly before 11pm. Areas of blowing snow. Mostly cloudy, with a low around 5. Wind chill values between -10 and -18. Blustery, with a northwest wind 20 to 28 mph, with gusts as high as 39 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Monday
Mostly sunny, with a high near 24. Wind chill values between -5 and 5. West wind 9 to 17 mph, with gusts as high as 24 mph.
Monday Night
Mostly clear, with a low around 11. West wind 7 to 9 mph.
Tuesday
Mostly sunny, with a high near 33. West wind 7 to 13 mph, with gusts as high as 24 mph.
Tuesday Night
Partly cloudy, with a low around 19.
Wednesday
Mostly sunny, with a high near 32.
Wednesday Night
Mostly clear, with a low around 15.
Thursday
Sunny, with a high near 29.
Thursday Night
Mostly clear, with a low around 13.
Friday
Mostly sunny, with a high near 35.
Friday Night
A slight chance of snow showers. Partly cloudy, with a low around 17.
Saturday
Mostly sunny, with a high near 30.

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