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.

Flash flood watch for parts of Miami Valley through Saturday morning

Published: Friday, April 28, 2017 @ 4:09 AM
Updated: Friday, April 28, 2017 @ 9:20 PM

Heavy rain and the threat for severe weather are affecting the Miami Valley this evening.

A severe thunderstorm watch is in effect until 2 a.m. for Butler, Clinton and Warren counties

An areal flood advisory is in effect until 3:15 a.m. for Butler and Warren counties

A flash flood watch remains in effect until 11 a.m. Saturday for Butler, Clinton, Greene, Montgomery, Preble and Warren counties

QUICK-LOOK FORECAST

  • Showers and thunderstorms overnight
  • Locally heavy rain, few strong storms possible
  • On-and-off storms through the weekend

RELATED: County-by-County Forecasts 

Overnight: Scattered showers and storms are likely with heavy rainfall possible at times overnight, Storm Center 7 Chief Meteorologist Eric Elwell said. Temperatures will hold in the lower 60s.

RELATED: WHIO Interactive Radar  

Saturday: Scattered showers and storms, mainly early, are likely. An isolated storm is possible in the afternoon. Otherwise, partly sunny skies are expected with temperatures in the upper 70s. More storms will return Saturday night.

RELATED: Download the WHIO Weather App

Sunday: Partly cloudy skies are expected with breezy and warm conditions. Highs will soar into the lower to middle 80s. Rain and thunderstorms are expected to move in Sunday evening and into the night.

Monday: Rain and storms will taper off early with breezy, cooler conditions in the afternoon. High temperatures in the middle 60s will occur early with falling afternoon temperatures.

Tuesday: Partly sunny skies and seasonably cool temperatures are in the forecast. Highs will be in the middle 60s.

Wednesday: Clouds will increase with showers developing. Highs will be in the lower 60s.

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Cloudy, cooler overnight with weekend storms ahead

Published: Thursday, April 27, 2017 @ 5:12 AM
Updated: Thursday, April 27, 2017 @ 11:50 PM

QUICK-LOOK FORECAST

  • Breeze, cooler overnight
  • Storms return Friday evening, some strong
  • Stormy weekend with heavy rain possible

RELATED: County-by-County Forecasts 

Overnight: Skies will be partly cloudy overnight. It will be chilly with temperatures dropping into the middle 40s, Storm Center 7 Chief Meteorologist Eric Elwell said.

RELATED: Much more active weather develops through weekend

Friday: Partly sunny skies are expected with temperatures climbing into the lower 70s. There will be a chance for a passing shower or storm by afternoon with increasing chances of storms toward late evening. A few storms could be strong Friday night. 

RELATED: Severe Weather: Slight vs Enhanced Risk

Saturday: Cloudy skies are expected with occasional rain and storms. An isolated storm could be strong. Temperatures will reach into the middle 70s. 

RELATED: Flooding: Know Your Risks

Sunday: Expect partly cloudy skies and windy conditions. There will be the chance of a passing storm during the day with increasing chances toward evening. A few storms could be strong late Sunday. Highs will be in the lower 80s.

RELATED: WHIO Interactive Radar

Monday: Cloudy skies are expected with rain in the morning tapering off. Temperatures will turn cooler with early highs in the middle 60s but falling in the afternoon.

Tuesday: Partly sunny skies and cooler temperatures are in the forecast.

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Celebrate Astronomy Day this weekend

Published: Thursday, April 27, 2017 @ 11:35 AM

This is one of two opportunities to celebrate Astronomy Day, taking place on April 29. 

You can learn more about astronomy at Boonshoft Museum of Discovery. They have an event from noon until 4 p.m. where experienced astronomers will talk about the Sun, moon, and all the night sky has to hold. 

Astronomy Day will also be celebrated on September 30 this fall. 

Astronomy Day was created to celebrate astronomy and spread the word about what our planet and the universe has to offer. 

You can try to spot planets on your own, but we also can show you  where to look for Venus

Don't forget to share your photos with the hashtag #SkyWitness7.

Stormy weather returns to the region

Published: Wednesday, April 26, 2017 @ 4:54 AM
Updated: Wednesday, April 26, 2017 @ 11:40 PM

QUICK-LOOK FORECAST

  • Increasing clouds, mild tonight
  • Scattered showers, storms early Thursday  
  • More storms return late Friday, some strong

RELATED: Much more active weather develops over next 24 hours

RELATED: WHIO Interactive Radar

DETAILED FORECAST

This Evening: Mostly clear skies will stick around through sunset with some increase in clouds by late evening. Temperatures will remain warm, generally in the 70s.

Tonight: Clouds will be on the increase through the night with a chance for some showers or storms toward morning. Temperatures will fall back into the lower 60s.

Thursday: Scattered showers and thunderstorms will be around, mainly during the first half of the day with some breaks in the afternoon. An isolated storm could be strong. Temperatures will be a bit cooler but still mild, near 70 degrees.

RELATED: Flooding: Know Your Risks

Friday: Partly to mostly cloudy skies are expected with a chance for a shower or storm late. More storms are expected by evening. A few storms could be strong. Highs will reach into the middle 70s.

Saturday: Partly to mostly cloudy skies are expected with occasional showers and storms. Temperatures will top out in the lower 70s.

Sunday: Expect a mix of sun and clouds and much warmer temperatures, along with gusty winds. Highs will top out in the lower 80s. Scattered storms will be possible, especially late. A few storms may be strong late.

RELATED: County-by-County Forecasts

Monday: Scattered showers and storms will be likely, especially early in the day. It will windy with cooler air pushing temperatures down through the 60s by afternoon. 

Download our free mobile apps for breaking news and weather.