Episodes of rain, thunderstorms and mist will threaten to cause delays and postponements of racing activities at Long Pond, Pennsylvania, this weekend.
According to AccuWeather Senior Meteorologist Dave Dombek, "A very unsettled weather pattern is setting up shop along the Atlantic Seaboard into Sunday."
The green flag is set to drop for Sunday's Sprint Cup race at 1:18 p.m. EDT at Pocono Raceway, sometimes called the Tricky Triangle.
In addition to bringing along some raingear and mud-resistant shoes, folks who mind the cool weather may want to bring along long sleeves and jackets.
Temperatures are forecast to peak in the 70s on Sunday with a few showers and thunderstorms around, mainly during the afternoon.
There is the potential that locally heavy rainfall can cause seepage issues on the track and muddy conditions in the meadow parking lots that surround the raceway.
In recent years, Pocono Raceway has improved drainage on the track and NASCAR has upgraded drying equipment to help reduce the wait time in between showers and following heavy rains.
However, the drying equipment may not be enough to dry the track if showers and thunderstorms linger over Long Pond for several hours.
If this happens and the race has not yet reached the half-way point, NASCAR officials may end up postponing the race until Monday.
Monday does appear to be drier than Sunday, but a shower or thunderstorm may still develop during the day.
The Pocono Mountains are actually a plateau with elevations averaging between 1,600 and 2,000 feet above sea level. When moisture moves in from the Atlantic Ocean and flows uphill into the region not only can the weather be surprisingly cool, but fog can also shroud the area.
Tropical Depression Nine is expected to strengthen to a tropical storm and will turn toward Florida with heavy rain, gusty winds and the risk of flooding late this week.
A potent storm system arriving from the Atlantic Ocean will deliver a soaking rain and gusty winds to all of the United Kingdom from Saturday into Saturday night.
Another strong tropical disturbance has moved off the coast of Africa and bears watching for strengthening and impact on the Caribbean and the United States during September.
Two tropical systems, Madeline and Lester, could pose hazards to Hawaii into Labor Day weekend.
While warmth will dominate much of Asia this autumn, drought relief is on the way for southeastern areas, but tropical cyclones could threaten lives and property surrounding the Bay of Bengal.
Thousands of Louisiana families are still cleaning up following the devastating floods that destroyed their homes.
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