Forecast Last Updated at Tuesday, April 13, 2021 at 6:42PM
Wind Diminishes; Stray Overnight Showers
A weak front approaches from the west, adding clouds and giving us potential for stray, light showers overnight. Wednesday has more mostly afternoon and nighttime showers (greater coverage and more rain) as the front gets a kick in the butt and moves through. Thursday has much cooler temperatures and decreasing clouds. Cool temperatures remain into next week with reinforcement arriving around the middle of next week.
Hi: 68 Lo: 47
Mostly cloudy; Isolated light PM and overnight showers; NW wind 5-15 mph, becoming SW tonight
Hi: 67 Lo: 43
Mostly to generally cloudy; Mostly afternoon and nighttime showers; SW wind 5-15 mph, becoming NW and gusty Wed. night
Hi: 55 Lo: 34
Mostly cloudy early then partly cloudy; Much cooler; NW wind 10-20 mph, gusty
Hi: 57 Lo: 37
Scattered clouds; Cool; Breezy
Hi: 58 Lo: 40
Becoming mostly cloudy; Continued cool; PM and nighttime showers possible
Sunday - Mostly cloudy; PM showers possible; Cool temperatures; High in the upper 50s; Low in the lower 40s
Monday - Lots of clouds; Cooler than average for April; High in the upper 50s; Low in the lower 40s
A big cool-down has been well-advertised in long-range guidance. It's real and becomes the main weather story beginning Thursday.
Front #1 of two stalls in East Tennessee tonight until getting a push from front #2 Wednesday. We'll have more clouds and more showers Wednesday afternoon and evening as they both move across the Appalachians.
The two fronts become one and settle into the Atlantic, across Florida, and stretch into South Texas to New Mexico/Arizona. High pressure centered in Northern Rockies sends the first wave of much cooler air into the Eastern U. S. Thursday through the weekend.
This weekend, two waves of low pressure move along the stalled front. They will spread clouds northward and give us the chance of showers both Saturday and Sunday, mostly in the afternoon and evening hours. Computer guidance differs on how far north these showers will spread. We kept showers in our forecast this weekend but uncertainty exists on that point.
A second surge of cooler air arrives around the middle of next week. Hope you kept the sweaters handy; you'll need them several days.
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