What is ice fog?

Published: Wednesday, December 14, 2016 @ 4:35 PM

Meteorologist Brett Collar breaks down a weather phenomena called Ice

Here in the Miami Valley we see all kinds of weather phenomena, including freezing fog and ice fog. While the two have similar dynamics, they do vary a bit.

Fog that turns to ice upon contact with a solid surface that has a temperature of 32 degrees Fahrenheit or less is known as freezing fog. This often occurs on elevated surfaces such as trees, power lines, bridges and overpasses. 

Ice fog is fog that freezes mid-air, simply because temperatures are so cold. The fog is not able to live long enough as water vapor and touch a solid surface before it crystallizes. 

Ice fog is not something that is often seen, and it only occurs while conditions are very cold and winds are light. The ice fog is noticed as a shimmering fog, often times referred to as frost flakes.

Showers, storms return today 

Published: Tuesday, August 22, 2017 @ 5:30 AM

Meteorologist Kirstie Zontini looks at the potential for strong storms this afternoon.

Quiet and very warm Tuesday with temperatures in the 70s during the morning, said Storm Center 7 Meteorologist Kirstie Zontini.

RELATED: Dayton traffic from the WHIO Traffic Center  

RELATED: WHIO Interactive Radar 


  •  Scattered showers and storms from lunch through the afternoon
  • Slight chance for a strong storm
  • Dry and cool stretch returns


(Storm Center 7 Meteorologist Kirstie Zontini)

RELATED: Sky Witness 7  


TODAY: Most will stay dry through the morning hours. Heading towards lunch some scattered showers and storms will push in. 

Activity will be most widespread during the afternoon. An isolated severe storm possible with wind the main threat. 

Everyone could see localized heavy rain through the day. Highs in the low to mid 80s. 

A few downpours possible in the early evening then drying out quickly as cold front moves east. 

(Storm Center 7 Meteorologist Kirstie Zontini)

(Storm Center 7 Meteorologist Kirstie Zontini)

WEDNESDAY: A great start to the day with some sunshine. Much cooler with highs in the upper 70s. Sunshine and scattered clouds and less humid.

THURSDAY: A cool morning in the 50s. Highs climb to the middle 70s which is below normal. Dry with sunshine and a few clouds.

FRIDAY:  A great end to the work week. Still not muggy and cool enough to give the air conditioning unit a break. Highs in the middle 70s with plenty of sunshine.

SATURDAY: Great start to the weekend. Dry with highs in the upper 70s.

WPAFB Tuesday Weather: Showers, storms today; highs reach mid-80s

Published: Tuesday, August 22, 2017 @ 1:03 AM

WRIGHT-PATTERSON AIR FORCE BASE — It will be another warm and muggy start on Tuesday with increasing clouds through the day, said Storm Center 7 Meteorologist Eric Elwell.

RELATED: WHIO Interactive Radar 

Pack your umbrella as showers and storms will become likely by mid-afternoon. A few storms could be intense and contain strong winds as well as some large hail.

RELATED: Mark your calendar now; more eclipses are on the way

Also, brief but heavy rain will be possible with the more intense storms. High temperatures will climb into the middle 80s before showers and storms push through.

Any lingering showers should quickly come to an end in the early evening with some clearing at night.

A much more comfortable several days is in the forecast beginning Wednesday as lower humidity and cooler air moves in.

Partly cloudy skies are expected Wednesday with highs in the upper 70s.

Temperatures will cool into the middle 70s with plenty of sunshine the rest of the week and coming weekend.

Rain possible Monday, better chances Tuesday

Published: Sunday, August 20, 2017 @ 8:52 AM
Updated: Sunday, August 20, 2017 @ 11:50 PM

5 Day Forecast with Chief Meteorologist Eric Elwell

It will be mainly dry overnight as temperatures drip into the middle to upper 60s. Some weather models hint at a light passing shower before daybreak, Storm Center 7 Meteorologist Brett Collar said.


  • Isolated shower or two possible Monday
  • Showers and storms likely Tuesday
  • Cooler and less humid Wednesday, Thursday

>>> County-by-County Forecasts

Graphic by Storm Center 7 Meteorologist Brett Collar


Monday: A hot and humid day is expected. Highs will be in the upper 80s and some spots may hit 90 degrees. Heat index values will be in the lower to middle 90s. There will be some afternoon clouds, and given the dynamics in the atmosphere, an isolated shower or two will be possible. Most of the day should stay dry, but there is a slim chance a shower or storm may fire off in the afternoon or early evening.

5-Day Rain Chances(Graphic by Storm Center 7 Meteorologist Brett Collar)

>> > WHIO Doppler 7 Interactive Radar

Tuesday: Showers and thunderstorms return as a strong cold front moves through. Highs will be in the middle 80s.

Wednesday: It cools off and dries out under partly cloudy skies. Highs will be below normal in the middle to upper 70s.

>>> WHIO Weather App

Thursday: It remains pleasantly cooler with highs in the middle 70s under partly cloudy skies.

Friday: Partly sunny skies are expected with highs in the middle 70s.

Mark your calendar now; more eclipses are on the way

Published: Monday, August 21, 2017 @ 4:05 PM

The temperature dropped and the winds calmed by about 3 to 5 mph during Monday's eclipse, according to Storm Center 7 Chief Meteorologist Eric Elwell. Save your eclipse glasses for the next one in 2024!

The Great American Eclipse is almost history but another eclipse is just around the corner.

There are several eclipses lined up in the coming decade. Of course, the bigger challenge will be getting the weather to cooperate so we can see these celestial shows.

Take a look of a timelapse of the eclipse taken in the Miami Valley.

»RELATED: Explaining the solar eclipse

Next up on the eclipse calendar will be a partial lunar eclipse which will take place in just over 160 days, on Jan. 31. This time, the shadow of the Earth will be cast about the moon beginning just before 6 a.m. The maximum eclipse will occur as the moon hits the horizon as it sets around 7:40 a.m.

There will be no need for special glasses to view the lunar eclipse.

»MORE: What to know about sky events

If that eclipse is too early in the morning for you, then mark your calendar for Jan. 20, 2019 when the final eclipse of the decade is expected. This should be a remarkable show (again, weather dependent) late on a Sunday evening. This lunar eclipse will begin just after 10:30 p.m. and become total at 11:41 p.m. This eclipse will be total, meaning the moon will be completely in the shadow of the earth. But the moon will not go totally dark. It will turn almost a blood color as all the sunrises and sunsets on Earth are projected onto the moon, thus the term “blood moon”.

Watch excited Lakota students react to Monday's historic solar eclipse.

And if you miss that total lunar eclipse, then the following decade will begin with two penumbral lunar eclipses on July 4 and another on Nov. 30, 2020, and a partial lunar eclipse on May 26, 2021. These will be followed by two more total lunar eclipses visible in the Miami Valley in May and November of 2022.

»WEATHER: Get the latest Storm Center 7 forecast

Of course, the more spectacular of the eclipses are the solar ones. You’ll need to bring back your eclipse safety viewing glasses for these beginning with a partial solar eclipse on Oct. 14, 2023. your eclipse safety viewing glasses for a partial solar eclipse on Oct. 14, 2023. This eclipse will be at its maximum just after 1 p.m. that day. This will just be a teaser to the main event expected across the Miami Valley just seven years from now when a total solar eclipse will be visible in our area.

Most Stunning Moments From The Total Eclipse

So, mark your calendar and set your alarm for just before 2 p.m. Monday, April 8, 2024. The sky will go nearly dark for nearly five minutes in the middle of the day during the totality between 3:09 and 3:13 p.m. with the eclipse coming to a complete end just before 4:30 p.m. If the weather cooperates, this should be one of the most spectacular celestial events here in our region in our lifetimes.

The total eclipse of 2024 will track across Mexico into southwest Texas, through Arkansas, Missouri, Indiana and then into western Ohio before lifting into eastern Canada. This time, it will be possible during that five-minute window to take your eclipse glasses off and look (briefly) at the eclipse.

So, get ready. Monday’s eclipse was just the warm-up to a decade of celestial shows ahead. Now, I’ll just have to work on the forecast and see if we can get some good weather to view these events.

Eric Elwell is WHIO StormCenter 7 Chief Meteorologist. Contact him at eric.elwell@coxinc.com or follow him on Facebook and Twitter.