CASS-ADAIR-MADISON-ADAMS-UNION-TAYLOR-AND RINGGOLD- COUNTIES…A WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL NOON TODAY (12/18), AND UNTIL 11-A.M. FOR POTTAWATTAMIE-MILLS-MONTGOMERY-FREMONT AND PAGE COUNTIES, WHERE WIND CHILL VALUES…WIND CHILL VALUES OF 20 TO 25 BELOW AT SUNRISE WILL GRADUALLY MODERATE TOWARD MIDDAY.
A WIND CHILL WARNING REMAINS IN EFFECT UNTIL NOON TODAY FOR AUDUBON-GUTHRIE-DALLAS-SAC-CRAWFORD AND CARROLL COUNTIES, AND UNTIL 11-A.M. FOR HARRISON AND SHELBY COUNTIES, WHERE WIND CHILL VALUES MAY FALL TO AS LOW AS -35 THIS MORNING. A WIND CHILL WARNING MEANS THE COMBINATION OF VERY COLD AIR AND STRONG WINDS WILL CREATE DANGEROUSLY LOW WIND CHILL VALUES. THIS WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA OR DEATH IF PRECAUTIONS ARE NOT TAKEN.
* WINDS…NORTHWEST WINDS OF 15 TO 20 MPH WITH GUSTS REACHING 25 TO 30 MPH AT TIMES.
* TEMPERATURES/WIND CHILL VALUES…THE WIND CHILL HAVEN FALLEN TO 25 DEGREES BELOW ZERO THIS MORNING, WITH -30 VALUES POSSIBLE. AS TEMPERATURES AND WIND CHILLS PLUMMET…FROSTBITE TO EXPOSED SKIN COULD OCCUR IN 10 TO 30 MINUTES.
* IMPACTS….VISIBILITY RESTRICTIONS AND SNOW AND ICE COVERED ROADS WILL ALL LEAD TO HAZARDOUS TRAVEL CONDITIONS.
PRECAUTIONARY/PREPAREDNESS ACTIONS…
A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND STRONG WINDS WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE NOT TAKEN. IF YOU MUST VENTURE OUTDOORS, MAKE SURE YOU WEAR A HAT AND GLOVES.
AUDUBON-GUTHRIE-DALLAS COUNTIES: WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 9 PM CST THIS EVENING… WIND CHILL WARNING IN EFFECT FROM 9 PM THIS EVENING TO NOON CST SUNDAY.
CASS-ADAIR-ADAMS-MADISON-UNION-TAYLOR & RINGGOLD COUNTIES: WINTER WEATHER ADVISORY UNTIL 9-P.M. (12/17). WIND CHILL ADVISORY FROM 9-P.M. (12/17) UNTIL NOON SUNDAY (12.18).
HARRISON-SHELBY COUNTIES: WIND CHILL WARNING IN EFFECT UNTIL 11 AM CST SUNDAY.
POTTAWATTAMIE-MILLS-MONTGOMERY-FREMONT AND PAGE COUNTIES: WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 11-A.M. SUNDAY.
Wind Chill Advisory (light blue); Wind Chill Warning (slate gray blue); Winter Weather Advisory (purple).
* SHORT TERM TRENDS…OCCASIONAL LIGHT TO MODERATE SNOW WILL END THIS EVENING BUT BLOWING SNOW WILL REMAIN. EXPECT AN ADDITIONAL INCH OR SO OF ACCUMULATION EAST OF INTERSTATE 35. WIND GUSTS TO 30 MPH OR MORE AND VISIBILITY MAY DROP TO A MILE OR LESS DURING MORE INTENSE PERIODS OF BLOWING SNOW.
* WINDS…WINDS WILL REMAIN BRISK WITH GUSTS REACHING 30 TO 35 MPH. * VISIBILITY…VISIBILITY MAY BE REDUCED TO A MILE IN SNOW AND BLOWING SNOW FROM MIDDAY INTO THE AFTERNOON.
* TEMPERATURES/WIND CHILL VALUES…THE WIND CHILL WILL REACH THE TEENS BELOW ZERO EARLY THIS EVENING. WIND CHILLS WILL DROP TO 30 TO 35 BELOW ZERO BY EARLY SUNDAY MORNING. OVERNIGHT LOWS OF 10 TO 15 BELOW ZERO WILL BE COMMON.
* IMPACTS….VISIBILITY RESTRICTIONS AND SNOW AND ICE COVERED ROADS WILL ALL LEAD TO HAZARDOUS TRAVEL CONDITIONS… ESPECIALLY THROUGH EARLY EVENING. AS TEMPERATURES AND WIND CHILLS PLUMMET INTO SUNDAY…FROST BITE TO EXPOSED SKIN COULD OCCUR IN 10 TO 30 MINUTES.
PRECAUTIONARY/PREPAREDNESS ACTIONS…
A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS, ICE-COVERED SURFACES, AND LIMITED VISIBILITIES DUE THE STRONG WINDS BLOWING SNOW AROUND. USE CAUTION WHEN TRAVELING, ESPECIALLY IN OPEN AREAS.
A WIND CHILL WARNING MEANS THE COMBINATION OF VERY COLD AIR AND STRONG WINDS WILL CREATE DANGEROUSLY LOW WIND CHILL VALUES. THIS WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA OR DEATH IF PRECAUTIONS ARE NOT TAKEN.
A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND STRONG WINDS WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE NOT TAKEN. IF YOU MUST VENTURE OUTDOORS… MAKE SURE YOU WEAR A HAT AND GLOVES.
Skyscan Forecast Saturday, December 17, 2016 Richard Garuckas
Today: Cloudy. Snow showers before noon. High 14 falling to 5 this afternoon. NNW @ 10-20 gusting to 30. 1 to 2 inches of snow expected.
Tonight: Gradual clearing. Very cold. Low -12. NW @ 10-20 decreasing to 5-10. Wind chill values as low as -30.
Sunday: Sunny. Frigid. High 6. WSW @ 5-10. Wind chill values at -25.
Sunday Night: Mostly clear. Low 3.
Monday: Mostly Sunny. High 27.
Tuesday: Mix of sun and clouds. High 38.
Wednesday: Cloudy. Chance of rain and snow. High 36.
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SAT DEC 17 2016: A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST THIS EVENING, and A WIND CHILL ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING TO NOON CST SUNDAY.
* SHORT TERM TRENDS…OCCASIONAL LIGHT SNOW OR FLURRIES CAN BE
EXPECTED THIS MORNING WITH ADDITIONAL SNOW AND BLOWING SNOW
DEVELOPING FROM MIDDAY INTO THE AFTERNOON.
* STORM TOTAL SNOW ACCUMULATIONS...UP TO 2 INCHES.
* WINDS…WINDS WILL INCREASE SIGNIFICANTLY TODAY WITH GUSTS
REACHING 30 TO 35 MPH FOR MIDDAY INTO THE AFTERNOON.
* VISIBILITY…VISIBILITY MAY BE REDUCED TO A MILE IN SNOW AND
BLOWING SNOW FROM MIDDAY INTO THE AFTERNOON.
* TEMPERATURES/WIND CHILL VALUES…THE WIND CHILL WILL REACH THE SINGLE DIGITS AND TEENS BELOW ZERO BY LATE THIS AFTERNOON AS
TEMPERATURES FALL AND WINDS INCREASE. WIND CHILLS WILL DROP TO
25 TO 35 BELOW ZERO BY EARLY SUNDAY MORNING. OVERNIGHT LOWS OF
10 TO 15 BELOW ZERO WILL BE COMMON.
* IMPACTS….VISIBILITY RESTRICTIONS AND SNOW AND ICE COVERED
ROADS WILL ALL LEAD TO HAZARDOUS TRAVEL CONDITIONS…ESPECIALLY
LATER TODAY AND THIS EVENING. AS TEMPERATURES AND WIND CHILLS
PLUMMET INTO SUNDAY…FROST BITE TO EXPOSED SKIN COULD OCCUR IN
30 MINUTES OR LESS.
PRECAUTIONARY/PREPAREDNESS ACTIONS…
A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF WINTRY
PRECIPITATION WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR
SLIPPERY ROADS, ICE-COVERED SURFACES, AND LIMITED VISIBILITIES
DUE THE SNOW AND STRONG WINDS BLOWING SNOW AROUND. USE CAUTION WHEN TRAVELING, ESPECIALLY IN OPEN AREAS.
A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND STRONG WINDS WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE NOT TAKEN. IF YOU MUST VENTURE OUTDOORS, MAKE SURE YOU WEAR A HAT AND GLOVES.
Today: **Winter Weather Advisory until 6-p.m**Cloudy skies w/snow showers before noon. A morning high of about 14, with temps falling to around 5 degrees by this afternoon. N-NW winds at 10-20mph gusting to around 30. 1-2″ of snow is possible.
Tonight: **Wind Chill Advisory from 6-p.m. until Noon Sunday** Skies clearing overnight, NW winds diminishing to 5-10mph. Low -12 with wind chills around -30.
Tomorrow: Mostly sunny. High 6. W/SW winds at 5-10. Wind chill values around -25.
Sunday night: Mostly clear. Low 3.
Monday: Mostly sunny & warmer. High 27.
Tuesday: Partly sunny. High 38.
Wednesday: Becoming mostly cloudy w/a chance of rain/snow. High 36.
A freezing mist or drizzle was falling in Atlantic as of 4:38-p.m. The Iowa DOT’s 511ia.org website shows roadways are partially covered with ice in parts of western Iowa, and completely covered in ice along Highway 34. Use extreme caution this evening. Minor icing will continue into the night, especially on untreated or secondary roads.
Light green is normal roads; Light blue is partially ice covered; pink is completely ice and/or snow covered.
AUDUBON-GUTHRIE-DALLAS-CASS-ADAIR-MADISON-ADAMS-UNION-
TAYLOR-RINGGOLD COUNTIES: A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST SATURDAY, AND A WIND CHILL ADVISORY REMAINS IN EFFECT FROM 6 PM SATURDAY TO NOON CST SUNDAY.
* TIMING…AREAS OF LIGHT FREEZING DRIZZLE IS EXPECTED TO PERSIST INTO THE OVERNIGHT HOURS. THE FREEZING DRIZZLE MAY MIX WITH PERIODS OF LIGHT SNOW A BEFORE SWITCHING TO ALL SNOW SATURDAY.
* STORM TOTAL ICE ACCUMULATIONS…PROLONGED LIGHT FREEZING
DRIZZLE WILL RESULT IN SEVERAL HUNDREDTHS TO AROUND A TENTH OF
AN INCH OF ICE ACCUMULATIONS BY TONIGHT…ESPECIALLY ON
ELEVATED AND UNTREATED SURFACES.
* STORM TOTAL SNOW ACCUMULATIONS…1 TO 2 INCHES WITH THE HIGHER
AMOUNTS ALONG THE I-80 CORRIDOR.
HARRISON-SHELBY-POTTAWATTAMIE-MILLS-MONTGOMERY-FREMONT-PAGE COUNTIES….A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST SATURDAY AND A WIND CHILL ADVISORY REMAINS IN EFFECT FROM 6 PM SATURDAY TO 11 AM CST SUNDAY…
* TIMING…FREEZING DRIZZLE…SLEET AND SNOW WILL CONTINUE INTO
THIS EVENING. THE MIX WILL CHANGE OVER TO SNOW LATE TONIGHT
AND CONTINUE INTO SATURDAY AFTERNOON.
* ICE AND SNOW ACCUMULATIONS…TOTAL ICE ACCUMULATIONS OF UP TO A
TENTH OF AN INCH ARE FORECAST. LIGHT SNOW ACCUMULATIONS FROM
HALF AN INCH TO AN INCH OR TWO ARE EXPECTED.
* WIND CHILL VALUES…WIND CHILL VALUES WILL FALL TO 20 BELOW BY
SATURDAY EVENING AND 25 BELOW SATURDAY NIGHT INTO EARLY
SUNDAY.
The weekend ahead may be the coldest Iowa’s experienced in seven years, according to meteorologist Todd Heitkamp at the National Weather Service office in Sioux Falls. The entire state is blanketed with winter weather watches and warnings, and parts of northwest Iowa will be seeing snow fly. “We do have a winter weather advisory out for snow that’s going to be developing around the area this afternoon and continuing into the evening and overnight,” Heitkamp says. “We’re expecting two to five inches of snow.”
More than a dozen counties across north-central and northeast Iowa are under a Winter Storm Warning as that region may get up to nine inches of snow by Sunday. Heitkamp says the wind chill factors will be exceptional through the weekend. “We’re going to be dealing with increasing winds later tonight,” he says. “As the snow begins to taper off, the winds will increase and gust up to 30 miles an hour during the day tomorrow, and as the winds start to increase, the cold will filter in along with those winds and we’ll be dealing with probably the coldest air we’ve seen around here in last four to seven years.”
By Sunday morning, air temps statewide will range from zero to 20-below, while wind chills could be 25 to 40-below. Iowans will need to take special care as they venture outdoors. “People need to understand the importance of dressing appropriately when dealing with adverse cold like this,” Heitkamp says. “There’s going to be a lot of people outside Saturday, clearing off the sidewalks and driveways. Limit the amount of time you’re doing that, take frequent breaks and dress appropriately by making sure all exposed flesh is covered.”
While the weekend weather sounds foul, there’s a turn-around coming in the forecast. “It’s going to warm up pretty quick on Monday,” Heitkamp says. “We’re looking at a high of 25 on Monday and then warming back up into the mid- to upper-30s on Tuesday so we’ll see almost a 60-degree temperature swing. It looks fairly nice next week but by Christmas, we may get hit with another shot of cold air coming in from the north.”
The first day of winter is next Wednesday, December 21st.
(Radio Iowa)
A WINTER WEATHER ADVISORY IS IN EFFECT NOW THROUGH 6-P.M. SATURDAY (12/17), FOR THE FOLLOWING COUNTIES: CASS, ADAIR, ADAMS, AUDUBON, GUTHRIE, DALLAS, MADISON, RINGGOLD, TAYLOR AND UNION. AND, A WIND CHILL ADVISORY WILL BE IN EFFECT FROM 6-P.M. SATURDAY UNTIL NOON, SUNDAY.
Winter Weather Advisory for counties in purple; Wind chill warning for counties in light blue; Winter Storm warning for counties in pink. More at http://www.weather.gov/dmx/
LIGHT FREEZING DRIZZLE IS EXPECTED TO DEVELOP BY LATE MORNING AND PERSIST OFF AND ON INTO THE NIGHTTIME HOURS. THE FREEZING DRIZZLE MAY MIX WITH PERIODS OF LIGHT SNOW AS WELL BEFORE SWITCHING TO ALL SNOW SATURDAY. * STORM TOTAL ICE/SNOW ACCUMULATIONS…PROLONGED LIGHT FREEZING DRIZZLE WILL RESULT IN SEVERAL HUNDREDTHS TO AROUND A TENTH OF AN INCH OF ICE ACCUMULATIONS BY TONIGHT…ESPECIALLY ON ELEVATED AND UNTREATED SURFACES. AN INCH OR TWO OF SNOW MAY ALSO ACCUMULATE FROM LATER TODAY THROUGH SATURDAY. *WINDS…WINDS ARE NOT EXPECTED TO BE A FACTOR UNTIL SATURDAY WHEN THEY BECOME NORTH TO NORTHWEST AND INCREASE WITH GUSTS REACHING 30 TO 35 MPH TOWARD MIDDAY WITH BLOWING AND DRIFTING SNOW AND THEN DANGEROUS WIND CHILLS. SPEEDS SHOULD DIMINISH INTO SATURDAY NIGHT AND SUNDAY MORNING BUT STILL BE SUFFICIENT
TO PRODUCE DANGEROUS WIND CHILLS. * VISIBILITY…VISIBILITY MAY BE REDUCED TO A FEW MILES OR LESS DURING BLOWING SNOW SATURDAY.
* TEMPERATURES/WIND CHILL VALUES…LOW TEMPERATURES WILL REACH 8 TO 15 BELOW ZERO BY SUNDAY MORNING. WIND CHILLS MAY DROP TO AS LOW AS 25 TO 30 BELOW ZERO BY LATE SATURDAY NIGHT AND SUNDAY MORNING…POSSIBLY TO 35 BELOW ALONG THE INTERSTATE 80
CORRIDOR. * IMPACTS…MINOR ICING WILL BEGIN LATER THIS MORNING AND CONTINUE INTO THE NIGHT. TREATMENT AND ROAD TEMPERATURES JUST ABOVE FREEZING MAY REDUCE IMPACTS THROUGH MID AFTERNOON…BUT ICING MAY BECOME MORE WIDESPREAD INTO THE EVENING AS AIR AND ROAD TEMPERATURES DROP. VISIBILITY RESTRICTIONS WITH PARTIALLY SNOW COVERED AND SLICK ROADS MAY OCCUR SATURDAY. THE COMBINATION OF FREEZING PRECIPITATION FOLLOWED BY SNOW AND WIND WILL LEAD TO HAZARDOUS TRAVEL CONDITIONS.
A WINTER WEATHER ADVISORY IS IN EFFECT FROM 9-A.M. TODAY (FRIDAY) UNTIL 6-P.M. SATURDAY, FOR HARRISON, SHELBY, POTTAWATTAMIE, MILLS, MONTGOMERY, FREMONT AND PAGE COUNTIES, AND, A WIND CHILL ADVISORY WILL BE IN EFFECT FROM 6-P.M. SATURDAY UNTIL 11-A.M. SUNDAY. Wind chill values will fall to -20 by Saturday evening and -25 Saturday night into early Sunday. The dangerously low wind chill values will cause frost bite to exposed skin in a short period of time.
CARROLL-CRAWFORD-SAC COUNTIES: A WINTER WEATHER ADVISORY IS IN EFFECT FROM NOON TODAY (FRIDAY) THROUGH 6-P.M. SATURDAY, AND A WIND CHILL ADVISORY IS IN EFFECT FROM 6-P.M. SATURDAY THROUGH NOON, SUNDAY.
A WINTER WEATHER ADVISORY MEANS PERIODS OF SNOW, SLEET, OR FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES. A WIND CHILL ADVISORY MEANS VERY COLD AIR AND STRONG WINDS WILL COMBINE TO GENERATE LOW WIND CHILLS THAT CAN RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE NOT TAKEN. IF YOU MUST VENTURE OUTDOORS, WEAR A HAT AND GLOVES.
Winter Weather Advisories in effect (See the Weather Page)
Today: Cloudy w/light snow mixed at times w/sleet-freezing rain. Light ice accumulation Snowfall less than ½”. High 30. SE @ 15-30.
Tonight: Cloudy w/mixed precip changing to all snow. Low 16. N @ 15-30. Wind chill around 0.
Tomorrow: Cloudy w/a of light snow. (1” total) High early of 16 w/temps falling during the day. N-NW @ 15-30. Wind chill as low as -20.
Tomorrow night: Patchy blowing snow. Gradual clearing. Low around -13. NW @ 15-20. Wind chill values as low as -30.
Sunday: Partly Cloudy. High around 10.
Monday: P/Cldy. High 28.
Our 24-hour High in Atlantic (ending at 7-a.m. today) was 20 (The daytime high Thursday was 14). The 24-hour Low was 2. Last year on this date, our High in Atlantic was 34 and the low was 27. The Record High in Atlantic on this date was 59 in 1902. The Record Low was -22 in 1951.
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