Increasing threat for showers through Friday

Published: Thursday, May 17, 2018 @ 3:21 AM
Updated: Thursday, May 17, 2018 @ 11:25 PM

Chance for passing showers and storms return today, especially south of I-70.

Patchy light rain and drizzle will taper off; some patchy fog is possible overnight, Storm Center 7 Chief Meteorologist Eric Elwell said. Temperatures fall into the lower 60s.

QUICK-LOOK FORECAST

  • Showers redevelop Friday
  • A bit cooler Friday
  • On and off storms into the weekend 

>> LIVE Doppler 7 Interactive Radar

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DETAILED FORECAST

Friday: Expect mostly cloudy skies with occasional showers. A rumble of thunder is possible but severe weather is not expected. Highs will hold in the lower 70s.

>> Pollen very high this week 

Saturday: Expect a mix of sun and clouds and a chance for passing showers and storms. Highs will rebound to near 80 degrees.

Sunday: The day will start mainly dry under partly cloudy skies. Clouds will increase late in the day with scattered showers and storms becoming likely by evening. One or two stronger storms will be possible. Highs will climb into the middle 80s.

>> 5-Day Forecast

Monday: Expect a chance for showers and storms with highs in the lower 80s.

Tuesday: Partly sunny skies are expected with only a slight chance for a lingering shower. Highs will top out near 80 degrees.

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Severe weather possible here for the weekend

Published: Thursday, July 19, 2018 @ 3:33 AM
Updated: Thursday, July 19, 2018 @ 11:35 PM

Storms which are pounding the Central Plains Thursday night will push into the Ohio and Mississippi Valleys on Friday. Our StormCenter 7 team says there will be a threat for severe storms over the Miami Valley late Friday afternoon and into the evening hours.

The severe weather that spawned numerous tornadoes across the Central Plains will shift east and south overnight and into the day Friday, with the threat for severe weather developing here during the afternoon hours,  Storm Center 7 Chief Meteorologist Eric Elwell said.

“While a line of storms will be possible in the morning, the main activity is expected to occur near or shortly before sunset,” Elwell said.

>>Strong storms spawn several tornadoes in Iowa

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The storm system responsible for the severe weather in Iowa, Missouri and Kansas will slowly shift into the Ohio Valley and then stall across the area through the weekend. 

"The threat for severe storms will decrease some over the weekend," Elwell said, “but we will likely pick up some much needed rainfall over the next 72 hours.”

Despite the recent dry conditions, there could be some flash flooding if the rain falls too hard, too fast, Elwell said.

The weather pattern change also is forecast to hold temperatures into the upper 70s this weekend.

>> LIVE Doppler 7 Interactive HD Radar

QUICK-LOOK FORECAST

  • Humidity and storms arrive Friday
  • Isolated strong to severe storms possible
  • Rounds of showers, storms this weekend 

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

DETAILED FORECAST

Friday: It will be warm, breezy and muggy with several rounds of showers and thunderstorms. The first round will move through in the morning and may bring gusty winds and heavy rain during the commute, mainly between 7 and 9 a.m. A lull in activity is expected through midday, when temperatures will climb into the lower 80s with increased humidity. Isolated showers and storms begin to develop during the afternoon with a more significant line coming through during the evening Damaging wind gusts will be possible with the strongest storms late in the day.

>> ISS will fly over Dayton tonight: When to look 

Saturday: Expect on and off showers and storms through the day. While there will be some dry time, rain may be heavy at times. Highs will hold in the upper 70s.

Sunday: Skies will remain mostly cloudy with a continued threat for passing showers and storms. Highs will hold in the upper 70s.

>> Mars visible in the night sky 

Monday: Partly to mostly cloudy skies will start the day with scattered showers and storms redeveloping during the afternoon. Highs will be a bit higher, climbing into the middle 80s.

Tuesday: Skies will be partly cloudy with temperatures rising into the middle 80s. There will be a slight chance for a pop-up shower or storm.

>> WHIO Weather App

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Mars visible in night sky: How and when to see it

Published: Wednesday, July 18, 2018 @ 6:47 AM
Updated: Thursday, July 19, 2018 @ 6:38 AM

Meteorologist Kirstie Zontini shows you how to find Mars.

Mars is even brighter than Jupiter in the night sky right now.

This month through early August, Mars and Earth happen to be very close. Right now, the two planets are at the second closest point they’ve been in nearly 60,000 years.

>> The International Space Station will fly over Dayton this week

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Mars is in opposition at the end of the month, said Storm Center 7 Meteorologist Kirstie Zontini. This is when Mars, the Earth and the sun line up. Opposition refers to Mars being “opposite” the sun in our sky. When the sun rises, Mars sets in the west, and when the sun sets, Mars rises in the east.

When Mars is fainter in the sky, it appears more reddish. When it’s closer and brighter, the color appears more orange.

>> LIVE Doppler 7 HD Interactive Radar

This week, Mars is rising at around 10 p.m. over the Miami Valley, and by the end of July it will be rising as the sun goes down, around 8:30 p.m. Mars will be very visible on clear nights fairly low in the southeastern sky. 

>> SkyWitness7

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Weather Wise Q&A 

Published: Wednesday, July 18, 2018 @ 8:10 PM
Updated: Thursday, July 19, 2018 @ 12:45 AM

Live Doppler 7 Radar is powerful enough to detect rain and storms, and even insects and other 'air traffic'. Because of the incline on Interstate 75 from West Carrollton City to Miamisburg, our radar, located in Germantown, can actually pick up cars and trucks traveling north and southbound on that ...

Have you ever pulled up the radar on your phone or watched on TV and see what appears to be precipitation on radar when the sun is out? 

You may think there is something wrong with the radar, but actually, there is not. You are seeing ground clutter. 

Doppler Radar is so sensitive it can pick up insect and bird migrations and low-level air traffic. 

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Our Live Doppler 7 Radar, located near Germantown, actually detects traffic on Interstate 75 between Miamisburg and West Carrollton. 

Storm Center 7 Chief Meteorologist Eric Elwell says the reason is because of the elevation change of the interstate between these locations and the position of WHIO’s radar. Because the elevation increases from north to south in this area, the cars actually come into the radar’s detection range. 

The radar sees the cars as very heavy precipitation. Elwell says that during active weather, the Storm Center 7 team can filter out the traffic or “ground clutter” noise so that storms can easily be detected.

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Some rain to start the week

Published: Sunday, July 15, 2018 @ 5:01 AM
Updated: Sunday, July 15, 2018 @ 9:58 PM

More rain to start the work-week in the Dayton area.

There is a change for a few isolated showers/storms this evening, according to Meteorologist Brett Collar. Rain is more likely to appear on Monday, and it will not be as hot this coming week.

>>Mercury and Venus visible

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QUICK-LOOK FORECAST:

  • Few isolated showers/storms this evening
  • More rain likely Monday
  • Not as hot this week

>>WHIO Doppler 7 Interactive Radar

Tonight: More dry time is expected overnight. It’ll be a mild and muggy night with temperatures dropping into the lower 70s.

Monday: More showers and storms are likely, especially in the afternoon and evening as a cold front moves through. It’ll be warm again with highs in the middle 80s.

>>LISTEN: Cloudy with a Chance of Podcast: A podcast for weather fans

Tuesday: Aside from maybe a pre-dawn shower, it looks like we should be dry. Decreasing clouds are expected with highs around the middle 80s.

Few storms this evening in the Dayton area.

Wednesday: We top out in the lower 80s under mostly sunny skies.

Thursday: A nice day is on tap for your day. Mostly sunny skies with highs in the lower to middle 80s.

Friday: The chance for showers and storms returns with highs around the middle 80s.

>>County-by-county weather

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