A huge swing in temperatures will be the focus this weekend for the NASCAR race in Talladega on Sunday.
A massive cold wave that will be responsible for widespread frost and freezes this weekend will send a cold shot into Talladega, Ala. as well.
"Drivers will face a much different track on Sunday in comparison to Friday's practice," said meteorologist and racing enthusiast Eric Leister.
"Highs will be nearly 20 degrees cooler on Sunday in comparison to Friday and could affect one of NASCAR's most unpredictable tracks," added Leister.
Temperatures in the mid-80s will heat the track Friday afternoon for their practice round, but a cold front will move through the track Friday night. Highs will fall into the upper 70s on Saturday before bottoming out in the mid-60s on Sunday.
A mostly cloudy sky will accompany the cooler Sunday weather, but rain will not be a factor. Normal highs in Talladega for early October are near 80 degrees.
Tropical Depression Two has formed in the Atlantic and could become the next tropical storm of the season by midweek.
Warm and humid air in place over much of the Midwest and Northeast at midweek will contribute to the risk of drenching, gusty and locally severe thunderstorms on Wednesday.
After temperatures briefly climb to typical midsummer levels, another cooldown will roll into the Midwest and expand to the East for the last part of July.
Severe storms will fire up Tuesday afternoon and evening, threatening outdoor activities and travel for many.
Powerful winds, heavy rainfall and dangerous mudslides will threaten Taiwan on Wednesday as Matmo moves across the island.
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Atlantic Ocean (1498)
Christopher Columbus' third voyage. After leaving the Cape Verde Islands, the 4 ships drifted WSW in the equatorial current. "The wind stopped so suddenly and unexpectedly and the supervening heat was so excessive and immoderate that there was no one who dared go below after the casks of wine and water which burst, snapping the hoops of the pipes; the wheat burned like fire; the bacon and salted meat roasted and petrified."
Wasatch National Park, UT (1918)
504 sheep were killed by one lightning bolt.
Waterbury, CT (1926)
105 degrees -- record high for state.