For those in the Northern Hemisphere to dust off your flannel because fall is officially here!
According to the National Weather Service, the Autumnal Equinox will occur on Wednesday, September 22, 2021, at approximately 3:20 p.m. EST.
Today, #autumn officially begins in the Northern Hemisphere at 3:21 pm ET! 🥳🎉
To celebrate, here is a a time-lapsed loop from the #GOESEast 🛰️ showing the change in the angle of the sun from the 2021 spring equinox to the #AutumnEquinox. pic.twitter.com/neLCYb5BMH
— NOAA Satellites (@NOAASatellites) September 22, 2021
As we welcome the season of leaf-peeping and pumpkin spice, let’s take a look at what the weather looks like across the country this week.
Eastern U.S. Feels Like Fall
The air feels crisp across New England. Boston, Massachusetts, has averaged around 75℉ this week. Temperatures will continue to decrease as we head into the weekend, ranging from the mid-60s to the low 70s.
Across the Eastern U.S. through the second half of the week:
🎶What’s this? What’s this?
There’s a chill that’s in the air
What’s this, a dryness everywhere
I can’t believe my luck
Could I be dreaming
Does this mean that Fall is in the air?
What’s this?🎶 pic.twitter.com/IiSGF1yHTr
— National Weather Service (@NWS) September 22, 2021
September is still a bit early for colorful fall foliage; the second week of October is when colors will be most vibrant. So plan your New England leaf-peeping and apple-picking adventures using this foliage tracker.
While the northeast is ready for pumpkin spice, some areas have already skipped to winter.
Snow Blankets Yellowstone National Park
🍁❄️A sure sign that fall is upon us: snow has begun falling across the higher terrain of Wyoming, including Yellowstone National Park. A few inches of accumulation is possible. Are you excited for the change in seasons, or do you wish summer would last a little longer? pic.twitter.com/6dAmCAgKeP
— NWS Weather Prediction Center (@NWSWPC) September 19, 2021
Wyoming’s conditions on Wednesday are still chilly, with temperatures averaging 36℉. However, Yellowstone National Park’s forecast reports sunny skies with southwest winds of around 15 mph.
Temperatures will linger in the low 30s at night, but daytime hours will warm up to reach the high 50s/ low 60s.
Great Lakes and the Mid-Atlantic Get Heavy Rain
The NWS calls for heavy rain and severe thunderstorms with potential flooding from the Great Lakes to the central Appalachians on Wednesday.
Rain expected for southern and eastern Lower Michigan today. Heavy rain/flooding possible, especially from Battle Creek to Lansing and points off to the east from there. It will be cool with highs in the upper 50s to lower 60s. Gusty north winds of 15-30 mph today. #wmiwx pic.twitter.com/m647l811Tu
— NWS Grand Rapids (@NWSGrandRapids) September 22, 2021
Showers and thunderstorms will continue to fall along a cold front that extends from the Great Lakes to the central Gulf Coast on Wednesday. Some areas could see several inches of rain, prompting potential localized flooding.
In addition to heavy rain, the lower Ohio Valley and Great Lakes are at risk for severe thunderstorms with damaging winds and isolated tornadoes.
Most of Michigan is under a Flood Watch.
Are You Ready for Fall?
Some are ready for all the fun that fall has in store, while others want summer to stick around a bit longer. We’re curious to know how you feel!
Let us know on Twitter and be sure to tag us in photos of your favorite fall scenery!
Goodbye ⛱👙, hello 🎃🧥
Tomorrow marks the official fall equinox. How are you feeling about this season change?
— Tomorrow.io (@tomorrowio_) September 21, 2021