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AccuWeather long-range meteorologists have been tracking this developing storm closely over the last several days as it shows potential to wreak havoc across a large portion of the United States this weekend, including areas hit hard by destructive tornadoes recently. An unusually severe storm system moved across southeastern Texas and northern Florida early this morning, which could bring additional flooding in Houston area. 1. Rain and Thunderstorms As holiday travelers pack their bags and board cars, buses and planes for travel across the nation this season, they will undoubtedly face travel delays due to severe weather threats spanning much of their route. Slow-moving storm tracking along the Gulf Coast will create an unpleasant start to the week from Texas to Florida, producing widespread shower and thunderstorm potential with damaging winds and heavy precipitation potential. On Saturday and Sunday, rain and thunderstorms should become less likely across the region; however, showers and thunderstorms will continue to impact portions of it Monday and Tuesday. Monday should be dry in Central Indiana, though storm chances will increase throughout the evening hours. Storms could produce damaging wind gusts as well as hail and flooding raindrops - potentially dangerous wind gusts are of particular concern; hail may also fall. As this week progresses, Arctic air will settle over much of the United States. Accompanied by bitterly low temperatures ranging from single digits to teens, forecasters anticipate this storm will disrupt holiday travel plans from Midwest states through to Great Lakes areas. Florida will see rain today. A line of showers and thunderstorms are predicted to impact Bradford to Clay counties of north central Florida while isolated showers and thunderstorms could develop over Tampa Bay during the day. The National Weather Service forecasted that storms will bring heavy rain, gusty winds and potentially damaging hailstorms to parts of Canada. Furthermore, these storms would contribute to creating hazy conditions from smoke from Canadian wildfires - according to their estimate. A trough moving across the Northeast will bring widespread rainfall and thunderstorms, some with severe potential. Wind gusts could reach 80mph in some locations. Severe storms are developing over the DFW area, and a severe thunderstorm watch remains in effect through midnight. Trees and power lines could be damaged as storms produce quarter-size to golf ball size hail and 60 mph wind gusts that could damage them. 2. Wind This weekend and next week could bring damaging winds to multiple regions across the US and beyond, producing gusts strong enough to tear apart tents, topple grills over, and ruin outdoor plans. Some storms may also include subfreezing temperatures with life-threatening wind chills. Weather predictions predict dangerous conditions will hit the central and northern Plains, Midwest, and Great Lakes regions this holiday week, including rain, snow, and relentless winds that may create blizzard conditions in cities like Chicago and Milwaukee. Travel will become treacherous over the holiday weekend - particularly air travel - potentially leading to cancelled or delayed arrivals or cancelled flights altogether. An additional winter-like storm is predicted to sweep into the central and eastern regions of the U.S. This storm should be weaker than its counterpart, yet still capable of creating blizzard conditions in places like Minneapolis and Kansas City. Winds will be strong and dangerous across much of the United States from the central Plains through Ohio Valley, Appalachians, and mid-Atlantic regions, creating difficulty for travelers as well as threats for power outages. These winds could pose significant danger for power grids in those regions affected. As part of their storms, storms will also bring rainfall that will cause rivers and streams to overflow their banks, raising waters levels in rivers and streams and leading to rivers recharging with fresh water from rainstorms. Be especially wary this weekend if venturing near any coastline as rip currents could form at beaches or coastal areas. Tornado watches have been issued for parts of southwestern Mississippi and southern Louisiana until Saturday morning, though their threat should dissipate by afternoon as more danger appears in Western Alabama, Southwestern Tennessee, and northern Georgia. On Sunday and Monday, severe weather will move into the Mid-Atlantic and Northeast regions. Now is a great time to plan for Fourth of July weekend activities by downloading our WVTM 13 mobile app - free for both iPhones and Android devices! Stay safe this holiday weekend while keeping informed with all of the latest news from WVTM 13! 3. Hail On Tuesday, an intense storm system lashed the central United States, unleashing below-freezing temperatures and snow to millions of people across multiple states. Dubbed a "bomb cyclone," this weather event may disrupt travel across a large portion of the nation and issue wind chill alerts warning that frostbite could strike exposed skin in just 10 minutes. Austin, Houston and Atlanta could see temperatures dip into the teens this week, although power outages or widespread ice accumulation is unlikely. Still, cold air could slow water pipes down significantly and cause frost formation where frost wouldn't usually appear. Concerns remain that the cold front will bring with it heavy rainfall and thunderstorms that may lead to flash flooding and tornadoes; thus requiring an active Severe Thunderstorm Watch for parts of Texas and Oklahoma through Thursday morning. Central Texas faces an elevated severe thunderstorm threat tomorrow afternoon and evening. Storms could produce large hailstones, damaging winds, and the potential for isolated tornadoes - all potentially occurring within 24 hours. Tonight in the Hill Country is expected to see strong to severe storms develop, which will then slowly move toward Austin metro area overnight. Storms will be fed by a fast moving cold front that pushes into the region, according to the National Weather Service. Storms could produce damaging winds, large to golf ball-sized hail and frequent lightning strikes, according to experts. At present, western and central North Carolina through Delaware, southern New Jersey and eastern Pennsylvania is facing a slight risk of severe weather with storms most likely producing damaging winds and hail, although tornado risk remains below 20%. 4. Flash Flooding Heavy rainfall that falls quickly can create flash floods, often in low-lying areas like washes, rivers or dry lakes. When these flash floods hit they may move much faster and stronger than expected, making travel treacherous and causing structural damage to homes, bridges and other buildings in their path. Two key factors influence the severity of flash floods: rainfall intensity and speed of water rising after it stops raining (rising aftertainment rate). Rapid flows can engulf vehicles or other objects on roadways. These powerful weather phenomenon can result in serious injuries or even deaths. Flash floods are often the deadliest type of storm; therefore it is crucial that a plan be put in place in case these storms hit. Prepare for severe storms by staying indoors and not traveling outside. If you hear thunder, see lightning or experience strong winds when outside, seek shelter immediately and find shelter as quickly as possible if driving a vehicle - keep all windows closed as much as possible for safety! An approaching storm system poses an increased threat of severe thunderstorms and flooding this weekend across much of the U.S. Watches have been issued from eastern North Carolina to New York City with warnings issued for some of the strongest storms that may produce damaging winds, bring down trees or power lines and cause power outages. This weekend's weather forecast includes heavy rainfall, high winds and damaging hail storms - potential threats that can cause structural damage to homes and other structures as well as disrupt travel plans and lead to widespread power outages. The region will be at risk from slight severe weather events, which includes tornadoes and strong winds. This risk level is one of five used by the National Weather Service to describe potential weather events: marginal, slight, enhanced and moderate are also used.