SNOW SQUALLS: Dangerous winter driving conditions

Published: Friday, December 09, 2016 @ 4:29 PM

We see snow squalls in the Miami Valley nearly every winter season, even though they are most common in lake effect snow areas. 

WHAT IS A SNOW SQUALL?

StormCenter7 Meteorologist Kirstie Zontini describes a snow squall as a burst of snow that quickly drops visibility levels to zero. They are usually accompanied by gusty winds which only make visibility worse as snow blows and falls simultaneously. 

WHY ARE SNOW SQUALLS DANGEROUS? 

Snow squalls are very localized. Driving conditions and roadways can look clear and safe one minute, and a minute later, you can't see. Drivers are caught in the whiteout as they are traveling at fair weather speeds which can result in chain reaction rear-end crashes like the incidents below.  

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December 8, 2016, Ashtabula County, Ohio I-90 pile up: 

Heavy snow squalls and icy conditions led to a 75 car pile up on I-90 in Ashtabula County, Ohio.  

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March 24, 2015, Shelby County, Ohio I-75 pile up: 

More than 20 cars collided during a snow squall in Shelby County on I-75 between SR 274 and 119.  

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January 21, 2013, Butler County, Ohio I-75 pile up: 

More than 50 cars were involved in a pile up on I-75 between Middletown and Monroe on January 21, 2013. 

No one was killed but the highway was shutdown for hours as emergency crews rescued drivers trapped in their cars and cleared the highway of debris.

Stay weather aware this winter no matter where you are.

DOWNLOAD the free WHIO Weather App that will send you audible weather alerts even when you're not in the app. You'll have access to live radar to see where snow is moving in to your area, as well as hour by hour forecasts. 

Strong thunderstorms move through region Friday night

Published: Friday, May 26, 2017 @ 7:32 PM
Updated: Friday, May 26, 2017 @ 11:50 PM

UPDATE @ 11:50 p.m.

Strong thunderstorms are still possible until 3 a.m., but the threat for severe weather has diminished, the National Weather Service said tonight.

UPDATE @ 11:15 p.m.

A Severe Thunderstorm Watch has been canceled by the National Weather Service. It was to be in effect through 2 a.m. for Butler, Darke, Preble and Wayne and Randolph, Indiana, counties.

A strong thunderstorm will affect parts of Warren, Clinton, Clark, and Greene counties until midnight, with a strong thunderstorm affecting southeastern Montgomery county until 11:45.

UPDATE @ 8:10 p.m.

A Severe Thunderstorm Watch is in effect through 2 a.m. for Butler, Darke and Preble counties in Ohio and Wayne and Randolph counties in Indiana, issued by the National Weather Service.

FIRST REPORT

Heavy clouds, showers and storms will approach from the northwest this evening.

RELATED: WHIO Interactive Radar

The National Weather Service reports that thunderstorms will move across the area between 8 p.m. and 3 a.m. Tonight’s storms have the potential to produce damaging straight line winds.

RELATED: 5th tornado confirmed in Wednesday storms

In addition to these winds, Elwell said we cannot rule out minor flooding, large hail and isolated tornadoes.

RELATED: WHIO Weather App

This is the second time this week tornadoes could touch down.

Areas along Interstate 70 could be most affected, Elwell said.

Residents should prepare for minor flooding and to keep cellphones charged for communication late this evening. Also, prepare backup generators, if applicable, in case of power outages.

Storms should end early overnight

Published: Friday, May 26, 2017 @ 4:43 AM
Updated: Thursday, May 25, 2017 @ 11:55 PM

Storms should end after 2 a.m. with temperatures falling into the middle 60s. Temperatures will hold in the 70s by morning, Storm Center 7 Chief Meteorologist Eric Elwell said.

QUICK-LOOK FORECAST

  • Temperatures to reach 80 degrees Saturday
  • More storms Saturday night into Sunday
  • Drying out for Memorial Day

RELATED: WHIO Interactive Radar

RELATED: Dayton traffic from the WHIO Traffic Center

RELATED: Severe Weather Guide

DETAILED FORECAST  

Saturday: Expect a mix of sun and clouds through the day with a chance for a passing shower or storm early. The chance for storms will increase late Saturday night with a few strong storms possible. Temperatures will climb to near 80 degrees.

RELATED: County-by-County Forecasts 

Sunday: Mostly cloudy skies are expected with showers and thunderstorms likely, especially the first half of the day. Highs will be in the upper 70s.

Monday: Partly cloudy skies will end the holiday weekend with only a slight chance for a passing shower, mainly north of Interstate 70. Highs will be in the middle to upper 70s. 

RELATED: Sky Witness 7 

Tuesday: A mix of sun and clouds is expected with highs in the middle 70s.

Wednesday: Skies will be mostly cloudy with a chance for a passing shower or storm. Highs will be in the middle 70s.

Download our free mobile apps for breaking news and weather. 

After possible stormy weekend, grab sunscreen for Memorial Day

Published: Friday, May 26, 2017 @ 2:14 PM

After what looks like a bumpy weekend with showers and storms possible Saturday night and Sunday, Memorial Day is shaping up to be a bit better. 

Temperatures will start in the morning around 60 degrees. Some sunshine will help to quickly bring temperatures to the low 70s by noon and the afternoon will end around 77.

Early morning events like Centerville's Memorial Day ceremony to honor our fallen men and women of the armed forces will stay dry. 

With sunshine, it will be a good idea to grab the sunscreen if you will be spending time outside. 

Any pools that are open for the weekend will have a good swim day Monday. 

The chance for a spotty shower will be possible north of I-70 late in the day but it won't be impactful enough to ruin any plans. 

Keep your WHIO Weather App handy to check the interactive radar for the afternoon.

WATCH: Two major storm anniversaries today in the Miami Valley

Published: Friday, May 26, 2017 @ 2:10 PM

In the wake of significant storms that produced four tornadoes in the Miami Valley on Wednesday, the area has anniversaries of two major storm events today.

MORE ON THIS WEEK’S STORMS
» Tornado sends part of Park Layne Sunoco sign to neighboring county
» 4th tornado confirmed in neighboring Miami Valley county
» 40 years ago, one of the country’s most disastrous club fires killed dozens from the Miami Valley

In 2015, a tornado was confirmed in Beavercreek that affected an area including The Greene.

That came four years after, in 2011, a significant hail storm caused damages throughout the region, especially remembered for the number of vehicles that needed repairs.

Video from 2011 hail storm:

Another video from 2011 hail storm: