Ever wondered how weather systems can impact your travel plans and holiday celebrations? Join meteorologist Steve Pellettiere on The Weatherman Podcast as we dissect the powerful frontal system sweeping through the northeast corridor from DC to Boston. We'll reveal how this dynamic weather pattern, bringing heat, humidity, and severe thunderstorms, might disrupt your end-of-June plans, and what you can expect for a potentially stormy 4th of July evening. You’ll learn which areas will have clear skies and optimal conditions, and where you should brace for weather-induced delays and cancellations.Dive deep into the specifics of how major airline hubs from central Arkansas to New York State will be affected, and get a day-by-day forecast for the entire week. From sunny skies in Chicago and the west coast to persistent showers in south Florida and potential tropical developments, we cover it all. Steve Protherty ensures you're well-informed whether you’re flying across the country or planning a local barbecue. Tune in to start your week with the most comprehensive and up-to-date weather insights, and prepare for whatever Mother Nature has in store! Here are some details...A cold front moving through the Great Lakes this evening will bring incooler and drier air to the region for Sunday, with showers andthunderstorms out ahead of it over much of the Northeast, Ohio Valley, andMid-Atlantic. By Sunday, the front will push closer to the I-95 corridor,focusing the chance for thunderstorms (some severe per the StormPrediction Center) toward the coast in the Northeast, but also into theMid-Atlantic and central/southern Appalachians. Isolated flash flooding ispossible in some areas that experience heavier rainfall in a short amountof time. Farther south, the frontal boundary will slip into the Mid-Southand TN Valley, with scattered showers and thunderstorms on Sunday. Fartherwest, tail-end of the same frontal boundary will help fire off mainlyafternoon showers and storms over the Four Corners region and across muchof the Rockies. Flash flooding is possible in some areas, especially inmore sensitive regions with steep terrain.Over the northern Rockies, a system will bring an expanding area of rainand thunderstorms tonight into Sunday, moving into eastern Montana wheresome severe weather is possible. By late Sunday into Monday, potentiallyheavier rainfall will push into the Upper Midwest/Corn Belt where FlashFlooding will be possible over areas that have seen well above normalrainfall recently. Isolated flash, urban, and small stream flooding alongwith new and renewed river rises are possible per the National WaterCenter.Temperatures will be quite variable across the Lower 48 over the next twodays. Much of the northern tier -- from the northern Plains eastward tothe Great Lakes -- will see below normal temperatures on Sunday intoMonday with highs generally only in the 70s. Ahead of the front to theeast, warm/hot temperatures in the 80s/90s on Sunday near the East Coastwill be replaced by 70s/80s on Monday. The hottest temperatures will belocated over much of the southern Plains to the Southeast, as well as intothe Desert Southwest. Though daytime maximum temperatures may not breakdaily records, overnight low temperatures will remain quite warm (only inthe 70s to around 80 degrees) due to high levels of humidity. This will bereflected during the day by high heat indices in the low 100s. By Monday,much of interior California will start to see temperatures near and over100 degrees, as will parts of the central Plains.