Another blast of arctic air, snow on the way

Published: Wednesday, December 27, 2017 @ 7:35 PM

While temperatures will moderate some to end the week, don't get too use to it. Another blast of bitter, arctic air is poised to arrive just in time for the New Year. Some snow is expected as that fresh cold air moves in.

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The next blast of arctic air will be even colder, and will bring another round of snow.

“The cold air just keeps coming,” Storm Center 7 Chief Meteorologist Eric Elwell said. “Even while we deal with the current outbreak of arctic air, more is building near the North Pole and it is forecast to head south this weekend.”

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Temperatures across the region have not been this low in nearly three years. Dayton started out Wednesday morning 2 degrees below zero. The last time it was that cold was on Feb. 24, 2015.

While temperatures will moderate some by the end of the week, it won’t last long.

Cold Trend(Storm Center 7 Chief Meteorologist Eric Elwell)

Light snow is expected to spread into the Miami Valley on Friday after dark and linger into the start of the weekend.

>> Man froze to death at Cincinnati bus stop

“While it is not expected to be a major winter storm,” Elwell said, “we could get an inch or two of snow ... due to the higher liquid to snow ratio.”

In other words, it doesn't take as much moisture for the snow to fluff up when temperatures are so low, Elwell said.

Some flurries may even linger into New Year's Eve day.

>> 63 inches of snow has fallen since Christmas Eve in Erie, Pa.

Our Storm Center 7 team of meteorologists will be working through this week to pinpoint the timing and amounts of this next storm. If you have big plans on New Year's Eve, be prepared to bundle up. The fresh batch of bone-chilling cold will have arrived and temperatures likely will be in the single digits as the clock strikes midnight.

>>Frostbite only takes 30 minutes

“Wind chills will likely be as cold as 5 to 10 degrees below zero,” Elwell said, likely making it the coldest New Year's Eve since at least 2002.

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Wintry mix, accumulating snow expected to cause slick conditions this week

Published: Monday, March 19, 2018 @ 3:34 AM

Photo by Spencer Platt/Getty Images
Getty Images
Photo by Spencer Platt/Getty Images(Getty Images)


  • Mild and dry during the day
  • Showers become wintry mix overnight
  • Accumulating snow mid-week

>> WHIO Doppler 7 Interactive Radar


Today: It will be a quiet and cold morning with temperatures in the 30s, said Storm Center 7 Meteorologist Kirstie Zontini. There will be some sunshine early with clouds increasing late day. It will be dry during the day and warmer than normal with highs in the mid-50s. Some rain showers will start to arrive from the south later tonight. Cold air will cut in and a wintry mix will develop toward morning.

Tuesday: Spring starts at 12:15 p.m. with the vernal equinox, but it certainly won’t feel like spring. A wintry mix is possible, and anything untreated or elevated could become slick as temperatures will start out in the upper 20s. Any surface below freezing could see some light freezing rain. Moisture will continue to stream into the Miami Valley. A rain/snow mix is possible in the afternoon with temperatures in the 30s and low 40s. It will become breezy. Scattered snow will take over into the evening and continues overnight. Winds will gust around 25 mph.

>> 5-Day Forecast

Wednesday: Scattered snow showers will be falling and will likely create a slick morning commute. Snow will not taper off until the evening hours. Highs will be in the mid-30s. Accumulating snow is expected by morning and through the day. The placement and intensity of this system can still change, but snow is expected to coat the roads by morning and will continue to accumulate during the day. It will be dry for the night, but it will be cold as temperatures drop into the mid-20s.

>> County-by-County Weather

Thursday: There may be a lingering slick spot in the morning. The day looks to be dry and back into the mid-40s. There will be some sunshine as well.

Friday: It will be a dry and quiet morning. Clouds will increase through the day. Highs will be in the mid to upper 40s. Clouds will increase at night with rain showers returning.

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WPAFB Monday Weather: Evening rain showers, wintry mix expected

Published: Monday, March 19, 2018 @ 12:01 AM

WRIGHT PATTERSON AIR FORCE BASE—A cool start to the work week is expected, but temperatures are again expected to climb close to the middle 50s this afternoon, according to Storm Center 7 Meteorologist Brett Collar.

RELATED: County-by-County Weather

Most of today will be dry with clouds on the increase, but the chance for rain returns later this evening and tonight.

With temperatures falling below freezing around midnight, it’s looking like some of the rain may change over to a wintry mix.

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What is freezing rain and how is it different from snow and sleet?

Published: Friday, March 16, 2018 @ 2:31 PM

What is the difference between rain, freezing rain, sleet and snow? Meteorologist McCall Vrydaghs has the answers.

During the winter months you may often hear about snow, sleet and freezing rain. 

Each has its own hazards, but freezing rain can create hidden dangers on the roads, more than the others. Unlike snow or sleet on pavement, freezing rain can appear wet, but is actually a sheet of ice and will leave no traction for drivers.

WHIO Doppler 7 Interactive Radar

Freezing rain forms in the clouds just like snow, but it’s what happens after the snowflake leaves the cloud that changes everything. During a freezing rain event the air within the cloud is cold enough to produce a snowflake. 

If the snowflake falls into air below the cloud that is above freezing, it will melt into a raindrop. This droplet will continue to fall as rain as long as the environment remains above 32 degrees. 

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Since cold air is more dense than warm air, sometimes a thin layer of subfreezing air may settle to the surface cooling the ground. If this occurs, once the droplet hits anything that is below 32 degrees it will freeze on contact. Typically, elevated objects such as trees, overpasses and power lines are the first to accumulate ice. If freezing rain continues for an extended period of time, ice may become so thick that numerous accidents and power outages may occur.

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St. Patrick’s Day: Freezing rain could impact celebration

Published: Thursday, March 15, 2018 @ 6:53 AM
Updated: Friday, March 16, 2018 @ 1:27 PM

Meteorologist Kirstie Zontini breaks down the next system that can impact your St. Patty's Day.

A storm system will approach the Miami Valley just in time for St. Patrick's Day, said Storm Center 7 Meteorologist Brett Collar. Early Saturday morning the system will bring freezing rain and possible ice acccumulation. 

Slick roads and icy sidewalks could be an issue beginning at 4am Saturday, and last through noon. 

>> WHIO Doppler 7 Interactive Radar

  • Back roads and sidewalks may be untreated
  • Be aware of slippery surfaces if starting your party early
  • Winter Weather Advisory early Saturday so wear an extra layer for outdoor festivities. 


Prior to sunrise Saturday, freezing rain is set to move in from the west. This will become more widespread around sunrise and that’s when ice accumulation will start to become a big issue. This will continue through the morning hours but by 10am or 11am, we should start to see a transition over to rain as temperatures climb above freezing. Untreated surfaces however are likely to still be icy through lunch time.

>> 5-Day Weather Forecast

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