By Jordan Root, Meteorologist
July 3,2016; 8:50AM,EDT
A swath of heavy rain is expected to jeopardize Fourth of July barbecues and firework shows across the mid-Atlantic on Monday.
An area of low pressure emerging from the mid-Mississippi Valley will cause all sorts of trouble for those with outdoor plans.
"The heaviest rain looks to impact southern parts of the Ohio Valley to the southern portion of the Northeast," AccuWeather Meteorologist Becky Elliott said.
Cities at risk include Columbus and Cincinnati, Ohio; Pittsburgh, Pennsylvania; Morgantown, West Virginia; and Washington, D.C., and Baltimore.
A sharp line on the northern side of the low will exist between where it rains and where it stays dry. One small shift of the front could result in a soaked holiday party.
Rainfall on the magnitude of several inches will soak an area near the low and may bring flooding.
West Virginia, which was devastated by flooding recently, will again be in the zone for dangerous flooding.
Heavy rain will stream across northern Virginia with locally severe thunderstorms threatening southern areas, including Charleston. The risk for the thunderstorms capable of producing damaging winds and flooding will extend back across Kentucky.
Outdoor plans such as barbecues, picnics and fireworks shows will all be at risk of being washed out from the rain and thunderstorms.
"Residents across the mid-Atlantic and Ohio Valley that plan on having outdoor barbecues will want to have an indoor backup plan," Elliott suggested.
Large fireworks displays, such as the Capitol Fourth Fireworks show in Washington, D.C., will be at risk for being postponed due to heavy rain. In many cases, Tuesday rain dates may need to be taken advantage of.
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Those planning on seeing baseball games in Washington, D.C., or Philadelphia on the Fourth of July may be disappointed by delays or even cancellations.
"Monday morning will be the better time for outdoor plans in Philadelphia as rain will arrive in the afternoon," AccuWeather Senior Meteorologist Kristina Pydynowski said. "New York City will be dry during the day, which is good news for those headed to watch the Mets face the Miami Marlins, despite clouds increasing."
Heavy rain will spread to eastern Pennsylvania, New Jersey and the New York City area on Sunday night.
"There can be a bit of rain during the Macy's Fourth of July Fireworks in New York City, but the steadiest and heaviest rain should hold off until after midnight," Pydynowski said.
Farther south across southern Virginia and the Carolinas, thunderstorms will put Fourth of July plans at risk on Monday, but the activity will be more scattered. However, some of the thunderstorms could be strong with gusty winds and flooding downpours.
People heading to the beach from the southern Delmarva to the Outer Banks may face afternoon thunderstorms.
Those with outdoor plans will want to keep an eye on the forecast. Keep up to date on the weather conditions across your area by using AccuWeather Minutecast®.
Spectacular weather to embrace New England on Fourth of July
While unsettled weather is focused on the mid-Atlantic on Monday, high pressure will continue to dominate New England, which will bring spectacular weather for the holiday.
Temperatures will remain seasonable under sunshine-filled skies with the summertime humidity lacking, aiding in comfortability.
However, those who do plan to spend most of their day outside, whether it is at the beach or in the backyard, are urged to put on sunscreen.
Fireworks shows in Boston and everywhere else in New England should not have any weather-related issues on Monday evening. It will be great day for baseball games as well.
The rain from the mid-Atlantic will reach southern New England, including grazing Boston, but not until late Monday night into Tuesday morning.
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