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Winter Weather Advisory & Warnings update (5:50-a.m., 2/24/17)

Weather

February 24th, 2017 by Ric Hanson

Shelby-Pottawattamie-Mills Counties: A Winter Weather Advisory is in effect until 9-p.m.; Periods of intermittent drizzle or light rain will eventually give way to freezing drizzle and then eventually a turn to all snow into midday as temperatures continue to fall. 2-4” of snow is possible.

Cass-Audubon-Guthrie-Dallas Counties: Winter Weather Advisory in effect until 12-a.m. Saturday (midnight tonight); Periods of intermittent drizzle or light rain will eventually give way to freezing drizzle and then eventually a turn to all snow into midday as temperatures continue to fall. Additional snow accumulations of 1-3” possible.

Monona & Harrison Counties: Winter Storm Warning in effect until 9-p.m. (Friday). Storm total snow accumulations of 5 to 8 inches are expected. Northerly winds 20 to 30 mph gusting around 35 mph will likely cause considerable blowing and drifting snow.

 

Sac-Crawford-Carroll-Greene Counties: A Blizzard Warning remains in effect from until 12-a.m. Saturday. Wind gusts will often reach 35 to 40 mph and while additional snow will be intermittent and light to moderate through the morning, the combination of new snow with already fallen snow will produce near whiteout conditions. Additional snow of 2-4” is possible.

Skyscan forecast & weather data for Atlantic: 2/24/17

Weather

February 24th, 2017 by Ric Hanson

Today: Cloudy w/light mixed precip. changing to snow. Nearly Steady temps in the low 30’s early, dropping into the 20’s this afternoon. N @ 20-35.

Tonight: Cloudy w/snow or mixed precip ending (1-3”total). Low 15. NW @ 20-35.

Tomorrow: P/Cldy. High 33. NW-W @ 10-15.

Sunday: Mo. Cldy. High 39.

Saturday: Mo. Cldy. P/Sunny. High 43.

Thursday’s High in Atlantic was 43. Our Low this morning was 30. We received .3″of snow through 7-a.m. today, plus rain and sleet overnight that amounted to .48″ of liquid precipitation. Last year on this date, our High in Atlantic was 39 and the low was 27. The Record High in Atlantic on this date was 76 in 1930. The Record Low was -15 in 1894.

*Update – Winter Storm Warning until 9pm Friday for Monona & Harrison Counties

Weather

February 24th, 2017 by Ric Hanson

312 AM CST Fri Feb 24 2017

* TIMING…Snow, occasionally moderate, will continue today before ending this evening.

* SNOW ACCUMULATIONS…Storm total snow accumulations of 5 to 8 inches are expected.

* WINDS…Northerly winds 20 to 30 mph gusting around 35 mph will likely cause considerable blowing and drifting snow.

* IMPACTS…Reduced visibilities, with whiteout conditions at times will make travel eventually become very hazardous to nearly impossible.

Winter Weather (updated 11:35-p.m., 2/23)

Weather

February 23rd, 2017 by Ric Hanson

Shelby-Pottawattamie-Mills Counties: A Winter Weather Advisory is now in effect from 3-a.m. Friday (2/24) until midnight.

Cass-Audubon-Guthrie-Dallas Counties: A Winter Weather Advisory remains in effect from 6-a.m. Friday (2/24) until midnight.

Monona & Harrison Counties: Winter Storm Warning in effect from 3-a.m. Friday until Midnight.

Sac-Crawford-Carroll-Greene Counties: A Blizzard Warning remains in effect from 12-a.m. Friday until Midnight.

* TIMING…A mix of rain, sleet and snow will become all snow over night. Snow will continue through the day on Friday ending during the late afternoon on Friday.

* SNOW ACCUMULATIONS…Snow accumulations of 2 to 6 inches are possible along and south of Interstate 80, with 5-to 8-inches possible along and north of Highway 30.

* IMPACT…Northerly winds of 20 to 30 mph will create areas of blowing and possibly drifting snow resulting in reduced visibilities, which will make traveling conditions become hazardous.

Severe Thunderstorm Warning for Cass/Guthrie/Adair Counties

Weather

February 23rd, 2017 by Ric Hanson

1122 PM CST THU FEB 23 2017

The National Weather Service in Des Moines has issued a

* Severe Thunderstorm Warning for…
Eastern Cass County in southwestern Iowa…
Southern Guthrie County in west central Iowa…
Northwestern Adair County in southwestern Iowa…

* Until 1145 PM CST.

* At 1122 PM CST, a severe thunderstorm was located 13 miles
southeast of Atlantic, moving northeast at 55 mph.

HAZARD…Quarter size hail.

SOURCE…Radar indicated.

IMPACT…Damage to vehicles is expected.

* Locations impacted include…
Anita, Adair, Casey, Massena, Menlo, Cumberland, Bridgewater, Lake
Anita State Park and Anita Municipal Airport.

This includes Interstate 80 between mile markers 70 and 90.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

For your protection move to an interior room on the lowest floor of a
building.

Blizzard Warning extended to Crawford and Carroll Counties

News, Weather

February 23rd, 2017 by Ric Hanson

Here is the latest (as of 3:15-p.m. Thursday), on the impending Winter Storm:

A Blizzard Warning is in effect from Midnight tonight (Thursday), through Midnight Friday (early Saturday) for Crawford, Carroll and Greene Counties, where 5-8 inches of snow are expected along with much deeper snow drifts. Winds will be N/NW at 20-30mph w/gusts to around 35. Travel will be dangerous to near impossible due to whiteout conditions.

A Winter Storm Warning remains in effect from 6-a.m. Friday until Midnight, for Monona and Harrison Counties, where 5-8″ of snow are possible, along with NE winds at around 35 mph creating blowing and drifting of snow and near zero visibility at times.

A Winter Weather Advisory remains in effect from 6-a.m. Friday until Midnight for Shelby, Pottawattamie, Mills, Audubon, Cass, Guthrie and Dallas Counties, where 2-6″ of snow are possible, along with N/NW winds at 20-30mph. Visibilities may drop to as low as 1/2 mile during the day, Friday. Hazardous travel conditions are expected from early Friday morning into early Saturday morning.

 

Winter Weather Advisory (Update 11:10-a.m., 2/23)

News, Weather

February 23rd, 2017 by Ric Hanson

Area Counties: Shelby…Pottawattamie…Mills…Crawford…Carroll..Audubon…Guthrie & Cass:

A Winter Weather Advisory for snow and blowing snow remains in effect from 6-a.m. Friday until Midnight.

* TIMING…Rain will be the primary precipitation type in western Iowa through about midnight before turning to a rain and snow mix early after midnight. All snow is expected then early Friday morning. Snowfall will continue on into Friday then gradually taper off early Friday evening.

* SNOW ACCUMULATIONS…Snow accumulations of 3 to 5 inches are expected with locally higher amounts possible.

* IMPACT…The gusty winds will likely create areas of blowing and drifting snow resulting in reduced visibilities which will make traveling conditions quite hazardous.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

A Winter Weather Advisory for snow and blowing snow means that periods of snow with blowing snow will cause primarily travel difficulties. Be prepared for snow covered roads and limited visibilities, and use extra caution while driving.

Shelby County Fire Danger drops to “Low”

Ag/Outdoor, News, Weather

February 23rd, 2017 by Ric Hanson

Forecast snowy weather has prompted the Shelby County Emergency Management Agency to reduced the field/grassland Fire Danger category to “Low,” from now through Monday, when the next update will be available. Earlier this week, dry and windy conditions, as well as numerous recent grass and brush fires in Shelby County, had resulted in the Fire Danger being elevated to High.

(2/23/17) Winter Weather Advisory, Winter Storm Warning & Blizzard Warning

News, Weather

February 23rd, 2017 by Ric Hanson

The National Weather Service has updated the status of their Winter weather-related advisories and warnings.  A Winter Weather Advisory for snow and blowing snow is now in effect from 6-a.m. Friday until Midnight, for Crawford, Carroll, Audubon, Guthrie, Cass Shelby, Pottawattamie and Mills Counties. And, a Winter Storm Warning is in effect from 6-a.m. Friday until midnight, for Monona and Harrison Counties. Further north (the northern 4 tiers of counties), a Blizzard Warning is in effect from 6-p.m. today (Thursday) through early Saturday morning.

Blizzard Warning for counties in bright red; Winter Storm Warning for counties in pink; Winter Weather Advisory for counties in purple.

* TIMING…Rain will transition to snow by early Friday afternoon with winds increasing through the day on Friday. The precipitation and wind are expected to persist into early Saturday morning.

* STORM TOTAL SNOW ACCUMULATIONS…3 to 7 inches.

* WINDS/VISIBILITY…Winds becoming north to northwesterly at 20 to 30 mph with gusts over 40 mph. Visibility will be reduced to one half mile or less during periods of heavier snow and wind.

* IMPACTS…Roadways will become snow covered and blowing snow will reduce visibility creating hazardous travel conditions Friday into early Saturday morning.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

A Winter Weather Advisory for blowing snow means that visibilities will be limited due to strong winds blowing snow around. Use caution when traveling, especially in open areas.

Skyscan forecast & weather data for Atlantic: 2/23/17

Weather

February 23rd, 2017 by Ric Hanson

Today: Cloudy w/light rain this afternoon. High 48. NE @ 10-20.

Tonight: Cloudy w/rain. Low 34. NE @ 10-20.

Tomorrow: Cloudy w/rain-snow mix becoming all snow (1-2” possible). High 34. N @ 15-30.

Saturday: Partly Sunny. High 34.

Saturday: P/Sunny. High around 39.

Wednesday’s High in Atlantic of 71 broke the old record of 68 set in 1995. Our 24-hour Low (ending at 7-a.m. today), was 36. Last year on this date, our High in Atlantic was 46 and the low was 29. The Record High in Atlantic on this date was 65 in 2002. The Record Low was -22 in 1989.