UPDATE


Power restored to thousands following severe weather

Published: Friday, July 07, 2017 @ 1:54 PM
Updated: Saturday, July 08, 2017 @ 12:45 AM

Watch as a line of severe storms races through eastern Indiana into western Ohio. This time-lapse shows a shelf cloud arrive before heavy rain, hail and high winds moved through Friday evening around 4pm.

UPDATE @ 5:41 a.m. (July 8)

Power has been restored to a majority of Miami Valley homes following thousands of outages caused by severe weather Friday afternoon and evening.

DP&L reports all but 21 residences in Montgomery County have had power restored, while single-digit outages are reported in Preble, Greene, Clark, Darke, Miami and Shelby counties.

Power remains offline for a handful of Miami Valley homes after severe weather left thousands in the dark Friday afternoon and evening. Courtesy DP&L.

UPDATE @ 12:45 a.m. (July 8): Just more than 700 people remain in the dark, including 250 in Clark County, according to the Dayton Power & Light online outage map.

Other county outages include:

170 in Greene

 78 in Montgomery

 47 in Preble

UPDATE @ midnight: More than 1,100 Dayton Power & Light customers remain without power after strong storms moved through the area late afternoon and early evening:

750 in Clark

171 in Greene

157 in Preble

 90 in Montgomery

Also, Duke Energy’s outage map shows more than 650 outages in Middletown and Madison Twp. in Butler County and Franklin, Franklin Twp. in Warren County.

UPDATE @ 6:54 p.m.:  Approximately 2,657 Dayton Power & Light customers are without power after the late afternoon storms:

1,101 in Preble

   635  in Miami

   548 in Montgomery

   197 in Logan

   176 in Greene   

UPDATE @ 5:30 p.m.: A little more than 1,000 Dayton Power & Light customers are without power because of the late afternoon storms moving through the area:

455 Montgomery

238 Preble

172 Miami

119 Logan

  34 Greene

UPDATE @ 2:40 p.m.

Power has been restored to almost all residents in the Miami Valley. Here are the latest numbers by county: 

21 in Montgomery

57 in Logan

427 in Darke

103 in Shelby

64 Miami

FIRST REPORT

Thousands of DP&L customers are without power as strong thunderstorms move through the region. 

RELATED: Severe thunderstorm watch issued; storms develop this afternoon

RELATED: Track conditions with Interactive Doppler 7 Radar

At 1:50 p.m., these are the outages reported, according to a DP&L outage map. 

DP&L

1,623 in Montgomery County

1,045 in Logan County

427 in Darke County

103 in Shelby County 

64 in Miami County

A DP&L spokesperson said they are monitoring the weather and have crews lining up to work to restore power and all outages have been isolated. 

Rain moves in today, cooler air arrives this week

Published: Monday, October 23, 2017 @ 3:26 AM
Updated: Monday, October 23, 2017 @ 12:43 PM

Showers at times today, breezy and cool.

QUICK-LOOK FORECAST

  • Rain at times today
  • Much cooler air arrives this week
  • Drier end to work week

>> WHIO Doppler 7 Interactive Radar

DETAILED FORECAST

5 Day Forecast with Meteorologist McCall Vrydaghs

Today: Cloudy skies with showers at times today. Some pockets of heavy rain are possible. Breezy/gusty winds as well. Cooler temperatures with highs in the upper 60s and falling by early evening. Clouds linger tonight with a few passing showers. A chilly night with lows in the middle 40s.

Kirstie Zontini

>> 5-day forecast

Tuesday: A cooler than normal day with a few lingering showers at times. Breezy with highs in the low to mid 50s which is cooler than normal. Cooling into the 30s overnight.

Kirstie Zontini

Wednesday: Most should stay dry through the day with partly cloudy skies. The cooling trend will continue highs in the low 50s.

>> County-by-County weather forecast

Thursday: It will be a chilly bus stop forecast with temperatures in the upper 30s. Some sunshine and afternoon clouds are expected as highs reach around 60, which is close to normal.

Friday: Clouds will increase through the day as it stays cooler with temperatures in the upper 50s. We could see a few lingering showers.

Elwell: Don’t count on an easy winter

Published: Monday, October 23, 2017 @ 11:23 AM

Miami Valley likely to have active winter season with snow and rain. TY GREENLEES / STAFF
Miami Valley likely to have active winter season with snow and rain. TY GREENLEES / STAFF

Up until today it may have been hard to realize that winter is now less than 60 days away. Our temperatures have been well above average for most of autumn with just a few brief cool spells.

This has led many people to believe that we are in for quite a payback for this nice weather this winter or we may be in for a quiet winter. Well, the outlook is in, and I wouldn’t count on an easy winter.

WATCH: Winter weather awareness -- What is a blizzard?

First, let’s look at what will likely be the main players this winter. It is a term you have likely heard before and likely will hear a lot more of in the coming weeks. Yep, La Niña appears to be developing and there is up to a 65 percent chance it will hold or get stronger as we head into the winter.

Elwell La Nina

Just a refresher, La Niña is a term given when sea surface temperatures across the equatorial Eastern Central Pacific Ocean are lower than normal by 3 to 5 degrees Celsius. Such a contrast in ocean water temperature has corresponding influences on the atmosphere and jet stream patterns across North America. Typically, during La Niña phases, the jet stream pattern across the southern half of the United States becomes very active, supplying lots of moisture across the region. The northern branch of the Jet Stream also can reach farther south and occasionally phase with the southern branch. This phasing can lead to a stormy weather pattern, especially across the Midwest, Great Lakes into New England.

Winter weather: What triggers a winter storm warning?

Because of the development of La Niña, the forecast for the upcoming winter is for above normal precipitation across much of our region including right here in the Miami Valley. So now the question is, can we expect more snow than normal? The answer to this is a bit trickier, because while a more active southern jet stream can bring us more frequent and bigger storm systems, it can also bring warmer air farther north, leading more to a threat of heavy rain or ice.

Temperature patterns for this coming season will be dependent on several factors including how far north the southern branch of the jet stream can shift. But there are other key factors we will closely be monitoring which are a bit more difficult to predict beyond the short term. One of those is what we call the Arctic Oscillation. This has to do with the circulation patterns around the North Pole, more precisely known as the Northern Atlantic Oscillation (NAO) which more directly influences weather patterns across the eastern United States. During a negative phase of the NAO, westerly winds across Canada weaken, allowing arctic air to build in the region and get even colder. This cold air many times will get forced southward into the United States.

During La Niña years, there appears to be an impact on how far south intrusions of arctic air building in Canada can move. Because of our latitude here in the Miami Valley, we are still far enough north that we will likely see near normal temperatures, although it appears there will be times with the southern jet stream may send temperatures above normal.

Superintendents put a lot of focus on deciding to close school because of the weather.

Okay, so enough of the mumble-jumble meteorology stuff… here is the bottom line of what we are expecting.

First, thanks to above normal temperatures over the fall, water temperatures of the Great Lakes are also above normal. That will likely mean intense lake effect snows across the region. While we normally don’t have major snow squalls in the Miami Valley from Lake Effect Snow, the wind flow off of Lake Michigan can typically lead to light snow accumulations in the area and at times, lead to brief white-out squalls which are responsible for many of the winter weather related traffic accidents. It is important to note that with the recent warmth, any snowfall prior to December would likely melt quickly due to warm ground temperatures.

Using analog data to help in forecasting (looking at past years when fall conditions were similar to how they are now), our StormCenter 7 team believes our winter may be similar to that of the 2005-2006 winter. Just to refresh what happened that winter, we saw a quick, somewhat harsh start to winter followed by a mid-winter (January) warm-up. After a relatively quiet period, several big storms during the last month of winter brought a wintry mess across the region.

While this winter is expected to be busier than that of the last couple of winters, it likely will not be as extreme as the “polar vortex” winters we experienced a several years ago. If the current pattern remains similar to that of 2005, we will likely have a mid-winter break from any extreme cold before blasts of cold and snow return to wrap up the season. Stay tuned!

Eric Elwell is WHIO StormCenter 7 Chief Meteorologist. Contact him at eric.elwell@coxinc.com or follow him on Facebook and Twitter.

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WPAFB Monday Weather: Rain showers, clouds expected through the day

Published: Monday, October 23, 2017 @ 12:01 AM

WRIGHT PATTERSON AIR FORCE BASE—Keep the umbrella handy today as rain showers are expected, according to Storm Center 7 Meteorologist Brett Collar.

RELATED: Dayton Interactive Radar - WHIO Doppler 7

A lot of clouds will be with us in the morning, but it looks like we should be dry early on. Rain showers move in as we head closer to lunch. The rain could be heavy at times in the afternoon.

RELATED: County-by-County Weather 

Temperatures on Monday won't move much as most of us see highs in the middle, maybe upper 60s. More lingering rain is expected Monday evening. Widespread rain could add up to over 1" in spots by Monday night.

Rain returns to start the work week

Published: Sunday, October 22, 2017 @ 5:02 AM
Updated: Sunday, October 22, 2017 @ 5:27 PM

A pedestrian tries to keep dry on Clematis Street. (Lannis Waters / The Palm Beach Post)
Lannis Waters/Palm Beach Post Staff Writer
A pedestrian tries to keep dry on Clematis Street. (Lannis Waters / The Palm Beach Post)(Lannis Waters/Palm Beach Post Staff Writer)

We’ll see a few more clouds overnight tonight, according to Storm Center 7 Meteorologist Brett Collar. Collar said a mild night and breezy night is expected with lows in the middle to upper 50s.

QUICK-LOOK FORECAST

  • Rain moves in Monday
  • Could be heavy at times
  • A cooler day Wednesday

DETAILED FORECAST

Monday: Showers move in, some of which could be heavy at times. The best chance for steady, and possibly heavy rain, will be in the afternoon and evening hours. While the chance for storms remains low, we can’t rule out a rumble of thunder or two. Highs will be in the middle to upper 60s

>> Download the WHIO Weather app for up-to-date forecasts

Graphic by Storm Center 7 Meteorologist Brett Collar

Tuesday: A few lingering showers are possible under mostly cloudy skies. Highs will be in the middle 50s.

Wednesday: A cool day is on tap for Wednesday. Highs will be in the lower 50s and while the chance for rain is small, a couple of passing showers can’t be ruled out.

>> WHIO Doppler 7 Interactive Radar

Graphic by Storm Center 7 Meteorologist Brett Collar

Thursday: We should dry out Thursday under partly cloudy skies. Highs will be in the upper 50s.

Friday: Dry and breezy with highs in the lower 60s. The chance for rain does return Later Friday into early Saturday.