July 4 weather: Heat, storms and firework smoke across the US
Carter Ruff
Independence Day is a time to celebrate the nation's history and enjoy outdoor activities with family and friends. But depending on where you live, the weather might pose some challenges or risks for your holiday plans. Here's a brief overview of what to expect in different regions of the US on July 4, 2023.
Northeast: Scattered afternoon thunderstorms are likely, especially in southeastern New England, where a weak wave of low pressure and a cold front will linger near the coast. Some storms could produce gusty winds, but most should fade quickly after sunset, allowing for clear skies for fireworks. High temperatures will be comfortable, in the upper 70s for most areas.
Mid-Atlantic: The cold front will also stall from Long Island to Virginia, keeping thunderstorm chances in the forecast. Some storms could be severe, with damaging winds as the main threat. However, downsloping winds from the mountains could limit storm development in some areas, such as Washington, DC. High temperatures will be hot and humid, in the low to mid 90s.
Southeast: Heat advisories are in effect from Florida to Virginia, where temperatures will reach the upper 90s and heat indices could soar to 110 degrees. Drink plenty of water and seek shade or air conditioning if you plan to be outdoors. Scattered thunderstorms are also possible, some of which could be severe, with large hail and isolated tornadoes. Have a plan to seek shelter if you hear thunder or see lightning.
Midwest and Plains: Severe thunderstorms are expected in parts of these regions, especially in the afternoon and evening hours. Damaging winds and large hail are the main hazards, but flash flooding is also possible due to heavy rainfall. The storms could disrupt some outdoor activities and fireworks displays, so be prepared to move indoors if needed. High temperatures will be very warm, in the upper 80s to mid 90s.
West: No storms are expected in this region, but extreme heat will be a major concern. Excessive heat warnings are in effect for much of California, Arizona and Nevada, where temperatures will range from 107 to 118 degrees. The heat index could reach 120 degrees in some areas, such as the Colorado River Valley. Avoid strenuous activities and stay hydrated if you are exposed to the heat. In some places, such as Oregon and Washington, firework smoke could add to poor air quality from Canadian wildfires.
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