Chilly? Blame Omega Block weather pattern

Published: Tuesday, May 03, 2016 @ 12:47 PM
Updated: Tuesday, May 03, 2016 @ 12:47 PM

April was quite a roller coaster as far as temperatures were concerned, with cooler air returning as we wrapped up the month.

However, there were enough warmer days during mid-April to keep the overall temperature average for the month just about half a degree below normal.

Cooler than average temperatures have returned and will likely stick around the rest of this week. Average highs for this time of year are in the upper 60s.

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An “Omega Block” in the jet-stream pattern will keep the pattern cool from the Ohio Valley into New England. The pattern is called an Omega Block because the upper-level weather features and jet stream look like the Greek letter Omega.

The pattern can get locked for several days – blocking weather systems from the west from moving eastward. Temperatures are usually cooler than average on the east side of the block, which is where the Ohio Valley will reside for most of this week. This will keep high temperatures in the lower to middle 60s through at least Thursday.

The weather pattern is expected to finally shift into a warmer pattern this weekend as the block slowly shifts east, allowing winds to become more southerly as opposed to northerly. This will allow warmer air that is building in the southern U.S. to shift northeastward into the Midwest and Great Lakes. When that happens, temperatures will rise back in the 70s and perhaps near 80 degrees, with the threat for any frost finally coming to an end.

As far as precipitation is concerned, despite occasional bouts of showers and storms, overall precipitation amounts will likely stay below normal.

For the month of April, the Dayton International Airport, the official measurement location, received 2.95 inches of rain; the average for this time of year is 4.09 inches — which put us more than an inch below normal.

However, the wet winter has our annual precipitation running above average by about three-quarters of an inch.

Eric Elwell is WHIO StormCenter 7 Chief Meteorologist. Contact him at or follow him on Facebook and Twitter.

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Severe weather downs trees, ignites fire in Miami Valley

Published: Friday, July 20, 2018 @ 3:26 PM
Updated: Friday, July 20, 2018 @ 4:45 PM

Heavy rains flooded Edgard Avenue during the afternoon on Friday, July 20, 2018.

Update @ 4:35 p.m.:

The strong winds also damaged trees around the area. In Miami Twp., a giant tree was uprooted in front of a business located at the corner of Centerville Road and Graceland Street. 

Racheal Cullins, who works at the business said she was on the phone when all of the sudden she heard a really loud boom. She looked outside and the tree fell had fallen in the yard, away from the building. 

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Had the tree fallen the opposite direction, the tree would have fallen on the building, she said. No injuries were reported.

Related: Dayton weather: Tornado watch issued for some in Miami Valley

In addition, multiple tree branches fell in Deeds Park in Dayton, blocking making the road impassable. There also were no injuries reported. 


The Miami Valley has been under several severe weather watches Friday afternoon. The heavy rainfall and lightening strikes are responsible for flooding and two structural fires in the area, officials said. 

Early Friday afternoon, lightening struck an apartment building in the 1600 block of Seabreeze Court in Washington Twp. A second alarm was requested as firefighters worked to retain the fire to the roof of the building. 

A second working fire at a single family home in Beavercreek was reported just after 3 p.m. Fire crews worked quickly to put the fire out, and no one was injured. 

ON SCENE: Fire at Beavercreek home may have started with lightning strike

There was minor damage to the home, and the family will continue to live there, firefighter said. 

Related: More than 1,600 DP&L customers without power

Fires aside, there’s been some flooding under a bridge on Third and Webster streets  in Dayton. The flood is causing motorists to drive cautiously, but cars are not stranded. 

We will continue to bring you the latest damages reports in the area as we get them. 

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Showers, storms taper off tonight

Published: Friday, July 20, 2018 @ 4:22 AM
Updated: Friday, July 20, 2018 @ 10:00 PM

Rough weather predicted for the remainder of Friday

>> Strong storms spawn several tornadoes in Iowa


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Tonight: Showers and storms, some heavy, will gradually taper down after midnight, Storm Center 7 Chief Meteorologist Eric Elwell said. Temperatures will fall into the middle 60s overnight.

Rough weather predicted for the remainder of Friday

>> LISTEN: Cloudy with a Chance of Podcast: Fire and Weather

Saturday: Expect showers and storms to increase in coverage through the afternoon hours. Temperatures will hold in the upper 70s.

Saturday: Expect showers and storms to increase in coverage through the afternoon hours. Temperatures will hold in the upper 70s.

>> Severe Weather: What is the difference between a slight or enhanced risk?

Sunday: Much of the area will be dry in the morning but more showers and storms will develop during the afternoon hours. Highs will hold in the upper 70s.

Monday: Expect a mix of sun and clouds in the morning with a chance for some showers and storms in the afternoon and early evening. Highs will reach into the lower 80s.

>> Mars visible in the night sky 

Tuesday: Partly sunny skies are in the forecast with a slight chance for a pop-up shower or storm, mainly in the afternoon. Temperatures will rebound back into the middle 80s.

>> WHIO Weather App

Wednesday: Expect a mix of sun and clouds with a slight chance for a pop up storm. It will be warm with highs in the middle 80s.

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Live Doppler 7 Radar

Published: Friday, January 12, 2018 @ 1:01 AM
Updated: Friday, July 20, 2018 @ 8:03 AM


Track the storms as they move into the area with our Interactive Radar.
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WHIO Weather App: Check Live Doppler 7 LOCAL radar, moderate risk for severe weather today

Published: Friday, November 18, 2016 @ 2:01 PM
Updated: Friday, July 20, 2018 @ 10:13 AM

Weather app
Weather app

The free WHIO Weather App will keep you alert and informed of changing weather conditions, no matter where you are, at home or traveling on the road.  You’ll be able to access a live radar anytime, anywhere. You’ll also receive weather watches and warnings no matter where you are.

Install the WHIO Weather App free now from the Google Play or Apple store. Right at your fingertips, you'll have access to:

  • Live radar to track rain, lightning and storms
  • School closings 
  • Hour-by-hour forecasts 
  • Hyper-local forecasts for your county 
  • Forecasts wherever you travel in the U.S. 


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Once you have downloaded the app, it is time to setup the locations you would like to monitor. Remember, these can change whenever you'd like with a push of a button. 

  • Once in the WHIO Weather app, look for the 'plus sign' at the top left of your screen  
  • Click Current Location to save your first city 

After that, you can save up to 10 locations by typing in the city and state. These locations can be anywhere you wish to receive weather updates. 


A new feature in the app is its ability to track storms even when the app isn't open and update you wherever you go...even out of state. If you travel into a location that is being impacted by weather, you will automatically be updated through the app. 

  • Once in the App, click the 'plus sign' at the top left of your screen 
  • Go to the Settings button at the bottom of your locations tab
  • Click Background Tracking, this will take you to your phone's settings
  • Make sure under the 'Location' option you chose 'always'


The WHIO Weather App is unique because it allows you to choose which the weather alerts for which you want to receive notifications. All watches, warnings and advisories that the National Weather Service issues are available in our app. 

  • Make sure there is a check by the alerts you want to receive
  • You can turn off any notification you don't want by clicking the check mark 


A special feature on the WHIO Weather App is the ability for the app to notify you ONLY when your GPS or saved locations are in the POLYGON for a warning. The National Weather Service draws polygons when it issues warnings and advisories. If your location isn't in the polygon, the alert will NOT go off. 

WATCHES on the other hand are issued for entire counties, not polygons. If your location falls in a county where a watch is issued you WILL get an alert. 


Unlike most apps that rely on a computer to just dump weather data on to their app, the StormCenter 7 Team updates the forecast on the WHIO Weather App each day, multiple times a day. With the WHIO Weather App you are getting a detailed forecast specifically created for the Miami Valley. It's not from a meteorologist many states away.


WHIO weather app in iPad


We've added the latest list of school and business closings and delays in the WHIO Weather App so you can check the list from wherever you're located. Simply open the app, along the bottom is a tool bar, 'Closings' is the third option from the left. This will take you directly to the most recently updated list. This new feature will better help you plan your day, allowing you to adjust as needed when your kids' school or your place of business issues a delay or closes due to road conditions or other reasons. 



If you miss a TV newscast, you can still keep up with the latest video forecasts our meteorologists create throughout the day. These short weather video segments tell the weather story of the day, how it will impact you, and contain their scientific explanations for unique elements of the forecast you won't get in a written story or graphic. This is a great tool during severe weather days and when a big winter storm may impact the Miami Valley. These custom video forecasts created by the StormCenter7 team of Meteorologists can be found under the 'Video' tab. 



The Interactive Radar is available year-round in the WHIO Weather App. Features on the app allow you to see lightning strikes along with satellite and radar. Under the 'Radar' tab you can click on the 'Layer' icon to overlay things like watches and warnings so you can see where storms and alerts are in relation to your location.

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