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Published: Tuesday, January 09, 2018 @ 4:09 PM
Updated: Wednesday, January 10, 2018 @ 8:40 AM
— UPDATE @ 8:40 a.m. (Jan. 10):
Our Storm Center 7 meteorologists are closely monitoring a potential winter storm that could impact the Miami Valley as we end the week.
The travel forecast for Thursday through Saturday is a mixed bag of precipitation, Storm Center 7 Meteorologist Kirstie Zontini said Wednesday.
The evening commute is expected to feature wet roads as rain showers move in through the overnight.
“As cold air cuts in with this system on Friday, road conditions will deteriorate quickly,” Zontini said. “There is still the potential, especially in the Dayton-area, to see a wintry mix before the whole region transitions to snow for Friday evening.”
“The snow should stop accumulating Saturday morning, but with temperatures in the 20s, then single digits Saturday night, even if the Miami Valley doesn't see the most snow from this system, slick roads will likely be a problem,” Zontini said.
FIRST REPORT (Jan. 9)
This has the potential to be one of the biggest winter storms to impact our region in a couple of years. However, there are a lot of unknown variables at this point, so a lot could change.
As is typical with these systems, the exact track will be crucial to not only determine how much snow we get and also whether the precipitation falls as snow, sleet, freezing rain or just plain rain. However, much of the long-range model data does show a significant winter storm moving through Ohio beginning midday Friday and lasting into Saturday.
The two major models we use are the European model and the American, GFS model. The European model shows snowfall amounts in the Dayton-metro area of between 5 to 8 inches with the GFS model tops out between 8 to 11 inches of snow.
Higher amounts could fall north of the main track. We will have to monitor this storm very closely as we have seen quite a bit of variability in each model run, we just don’t exactly know how much snow will fall or if rain winds up being the primary precipitation we receive.
It is also important to note that most of the models show gusty winds with this system, which could lead to blowing and drifting of the snow, regardless of the amounts. Temperatures will also be dropping through the day Friday with highs back into the teens this weekend.
We want to let people know that now is the time to be sure you are prepared for a significant storm, even if it turns away from us. We certainly do not want to add hype, however, it is better to be ready instead of having to rush to prepare if the warnings get issues.
Our meteorologists should know a lot more about the track of this major storm by late Wednesday or early Thursday.
Published: Saturday, May 26, 2018 @ 6:55 AM
Updated: Saturday, May 26, 2018 @ 4:40 PM
— Showers and a few storms will push through this evening, Storm Center 7 Meteorologist Brett Collar said. An isolated shower or storm can’t be ruled out through midnight.
Overnight: Dry conditions are expected as temperatures drop into the middle to upper 60s. Fog will be likely early Sunday.
Sunday: A dry start is expected to the day, which will be hot with highs in the upper 80s. With the daytime heat, there may be an isolated shower or storm, but it looks like most will stay dry. Don’t cancel your outdoor plans, but have a backup plan indoors.
Memorial Day: Lots of sunshine, hot and humid again for Monday. Highs will top out near 90 degrees with a heat index from 90 to 95 degrees. Once again, an isolated shower or storm can’t be ruled out.
Tuesday: Another hot day is expected with highs near 90 degrees under mostly sunny skies.
Wednesday: The chance for rain, maybe storms, returns with highs in the middle 80s. Rain comes from the remnants of Alberto, the first named tropical storm of the Atlantic season.
Published: Saturday, May 26, 2018 @ 12:53 PM
TALLAHASSEE, Fla. — Governor Rick Scott issued Executive Order 18-150 on Saturday, declaring a state of emergency in all 67 Florida counties as the state continues to monitor and prepare for Subtropical Storm Alberto.
DOWNLOAD: WFTV Weather app
By declaring this state of emergency, Scott's office said he is ensuring that state and local government has ample time, resources and flexibility to get prepared for this storm, WFTV reported.
This morning, I have declared a state of emergency across FL to ensure our state has the resources they need to keep their families safe and prepare for the torrential rain and severe flooding Subtropical Storm Alberto will bring. https://t.co/8yK1qdB5eD— Rick Scott (@FLGovScott) May 26, 2018
Scott said, “As we continue to monitor Subtropical Storm Alberto’s northward path toward Florida, it is critically important that all Florida counties have every available resource to keep families safe and prepare for the torrential rain and severe flooding this storm will bring. Today, I have declared a state of emergency in all 67 Florida counties to make sure that our state and local governments are able to coordinate with federal partners to get the resources they need. Yesterday, I directed the State Emergency Operations Center activate to Level 2 and I will continue to be in constant communication with state and local emergency management officials as this storm approaches Florida.
TALKING THE TROPICS WITH MIKE: Alberto forms near Yucatan Peninsula - stays west of Jacksonville - heavy rain for local area
“If any Florida family doesn’t have an emergency preparedness plan, now is the time to act. Remember, the track of these storms can change without notice. Do not think that only areas in the cone will be impacted – everyone in our state must be prepared. I encourage every Floridian to visit FloridaDisaster.org and get your plan before this storm hits so you can keep your family safe. We will continue to provide updates to Florida’s residents and visitors and do everything to prepare for and respond to this storm.”
FOLLOW: Live WFTV weather radar
• The State Assistance Information Line (SAIL) contact number is 1-800-342-3557.
• Follow @FLSert or @FLGovScott on Twitter for live updates.
• Visit floridadisaster.org to find information on shelters, road closures, and evacuation routes.
Published: Thursday, May 24, 2018 @ 6:35 AM
— In the winter we talk about wind chill and in the spring and summer, it is the heat index that is important, according to Storm Center 7 Meteorologist Kirstie Zontini.
Both are apparent or "feels like" temperatures. The heat index is a "feels like" temperature that looks at the actual air temperature and how much moisture is in the air, either with relative humidity or dew point. When it is hot, it can be uncomfortable. When it is hot and muggy, it is a different level for our bodies.
The amount of moisture in the air impacts how well our bodies can cool off. When you are hot, your body starts to sweat, that sweat is then evaporated from your body into the atmosphere. If the moisture content of the air is high, it is harder for that evaporation to take place, and harder then for your body to cool down.
Here is the actual equation for calculating heat index:
HI = -42.379 + 2.04901523*T + 10.14333127*RH - .22475541*T*RH - .00683783*T*T - .05481717*RH*RH + .00122874*T*T*RH + .00085282*T*RH*RH - .00000199*T*T*RH*RH
As the air temperature and relative humidity increase, the heat index will as well. If it is 88 degrees with a relative humidity of 55%, the heat index would be 93 degrees. If it was 100 degrees with a relative humidity of 55%, the heat index would reach 124 degrees. This makes being outside when it is hot and humid more dangerous.
Published: Friday, November 18, 2016 @ 2:01 PM
Updated: Tuesday, March 13, 2018 @ 10:59 AM
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:
HOW DO I ADD MY CITY OR LOCATION IN THE APP?
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.
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.
SHOULD I "ENABLE" BACKGROUND TRACKING?
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.
DO I HAVE TO BE ALERTED TO EVERYTHING WEATHER RELATED?
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.
WHY DIDN'T THE WARNING GO OFF ON MY PHONE?
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.
ISN'T THE 7-DAY JUST LIKE ANY OTHER WEATHER APP?
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.
HOW DO I SEE THE LATEST LIST OF SCHOOL/ BUSINESS CLOSINGS AND DELAYS?
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.
I MISSED A NEWSCAST, HOW CAN I GET MY FORECAST?
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.
WHAT CAN I SEE ON THE INTERACTIVE RADAR BESIDES RAIN AND SNOW?
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.