What is ice fog?

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

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.

Solar eclipse ‘event of a lifetime,’ says Chief Meteorologist Eric Elwell

Published: Wednesday, March 22, 2017 @ 5:32 PM
Updated: Wednesday, March 22, 2017 @ 11:18 PM

It will be the event of a lifetime -- IF -- the weather cooperates here in the Miami Valley late summer. 

On Aug. 21, the first total eclipse in nearly a century will be visible across much of the United States. It will be a total solar eclipse from Oregon to Tennessee to South Carolina, Storm Center 7 Chief Meteorologist Eric Elwell said.  

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If skies are clear enough here in the Dayton region, expect the eclipse to begin a few minutes after 1 p.m. The eclipse will reach its maximum in the Miami Valley at 2:28 p.m. with nearly 90 percent of the sun being obscured by the moon.

We’ll have near darkness in the middle of the afternoon. The moon then will move away with the eclipse ending at 3:51 p.m.

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It is highly recommended that viewers of the eclipse wear protective eye gear, not just sunglasses. Staring at the sun can cause severe damage to the eyes. 

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If you miss the eclipse or the weather does not cooperate, you won’t have to wait another century. Dayton will get a chance to see another total solar eclipse on April 9, 2024. 

STAY INFORMED: School-Business Closings, Delays

Published: Thursday, December 08, 2016 @ 3:03 PM

STAY INFORMED: School-Business Closings, Delays

Stay informed this winter season with the latest school delays and closings, business closings and snow emergencies.

You can access them 5 different ways: 

For information on how to enroll your school or business in the free School Watch Program, click here.

SEVERE WEATHER: Difference between Watch vs. Warning

Published: Tuesday, April 26, 2016 @ 1:49 PM
Updated: Tuesday, April 26, 2016 @ 1:49 PM

The National Weather Service is the official issuer of a watch or a warning, based on expected weather conditions.

Stormcenter7 Meteorologist Brett Collar explains the difference.

In severe weather season, knowing the difference between a watch and a warning can be life-saving.

WATCH means you should prepare for the possibility of a severe storm or tornado.

WARNING means you should take action now, get to a safe location because severe weather is occurring or a tornado has been seen or indicated by radar.

Monday’s Vernal Equinox : What is it?

Published: Sunday, March 19, 2017 @ 9:40 PM

We transition from winter to spring.

When this officially happens at 6:29 a.m. today, that moment is called the Vernal Equinox.

The Vernal Equinox is when the Earth is lined up so that the sun’s rays directly hit the equator.

During winter months, that line is in the southern hemisphere, and during summer months it’s in the northern hemisphere. This is thanks to the tilt of the Earth’s axis, which is an average of 23.5 degrees.

The transition into spring will bring big changes to the Miami Valley. Average highs start the season at 51 degrees Monday. But by the start of summer on June 21, the average high will jump to 82 degrees. Daylight hours also will increase from 12 hours, 9 minutes on Monday to 14 hours and 49 minutes June 21.