Severe weather, floods threaten July 4 festivities

Heavy Rains, Flooding Dampen July 4th for Millions

Severe weather was threatening large swaths of the Midwest and Plains on Sunday, with forecasters warning that heavy rains and potential flash floods could put a damper on the holiday weekend.

The National Weather Service said the threat of flash flooding was moving from Kansas and Missouri overnight into the Ohio Valley on Sunday.

Between 2 and 6 inches of rain had fallen in parts of Missouri and eastern Kansas by early Sunday morning, according to the Weather Channel. It said that Wichita experienced flooding overnight, as did the Kansas cities of Hesston, Newton and Moundridge.

Flash flood watches were in effect for other parts of the central Plains and mid-Mississippi Valley — including St. Louis and parts of Ohio, the Weather Channel added.

Click through how some stars are celebrating their Fourth of July:

49 PHOTOS
Stars celebrate Fourth of July
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Stars celebrate Fourth of July
Will always look back ๐Ÿ˜‰ at this #4thofjuly ๐Ÿ‡บ๐Ÿ‡ธ #fireworks #family #friends #beach
I'm a great third wheel. ๐Ÿ‡บ๐Ÿ‡ธ @revolve @chrissyteigen @johnlegend #revolveinthehamptons
An American treasure
Happy 4th from us โค๏ธ
hostess vibes. Happy 4th everyone!
โ˜€๏ธโ˜€๏ธโ˜€๏ธ #REVOLVEinthehamptons
Proud To Be An American. #RedWhiteAndBlue HappyFourth Thnx @Buscemi For Juicy Mans Shoes ๐Ÿ‡บ๐Ÿ‡ธ
Princess spirit! Happy forth everyone #spirit
SUMMER
Happy 4th! ๐ŸŽˆ
Happy 4 th of July ๐Ÿ˜ป๐Ÿ’‹โค๏ธ
All smiles for the #FourthofJuly ๐Ÿ‡บ๐Ÿ‡ธ
Had an awesome weekend w the fam bam #happy4thofjuly we #bbq๐Ÿ– n watched fireworks w my papasito @markdalba photo cred @cash_warren
Happy 4th of July!
๐ŸŽ‰๐Ÿ‡บ๐Ÿ‡ธ
HAPPY fourth! โค๏ธ๐Ÿ‡บ๐Ÿ‡ธ๐Ÿ’™
Feeling festive for today's work out ๐Ÿ‡บ๐Ÿ‡ธ๐Ÿ‡บ๐Ÿ‡ธ๐Ÿ‡บ๐Ÿ‡ธ@VictoriaSport @BalletBeautiful ๐Ÿ‘Š๐Ÿผ
Happy 4th! Happy Birthday America! @dontblowit #happyfourth #happyfourthofjuly #fourthofjuly #america
Happy 4th from Barbie!!!! โค๏ธ๐Ÿ’™โค๏ธ๐Ÿ’™โค๏ธ๐Ÿ’™
Keeping the tradition alive. Happy Fourth of July everyone. Was so honored to be able to sing with the Boston Pops tonight honoring our great country. #godblessamerica
Happy 4th
Happy birthday America!!!!! ๐Ÿ‡บ๐Ÿ‡ธ๐Ÿ‡บ๐Ÿ‡ธ๐Ÿ‡บ๐Ÿ‡ธcelebrating in style. Obviously @goldsheepclothing
Getting ready for #fireworks
Happy 4th! โœจโœจ๐Ÿ‡บ๐Ÿ‡ธโœจโœจ
๐Ÿ‡บ๐Ÿ‡ธ
Pre-BBQ nap with grandma โค๏ธ Hope y'all are enjoying the holiday! ๐Ÿ‡บ๐Ÿ‡ธ #July4th โ˜€๏ธ๐Ÿ’™๐ŸŒดโœจ
Wishing you all a very Happy Fourth of July!!! (Said from a Canadian currently vacationing in Fiji) ๐Ÿ˜œ๐ŸŒด๐Ÿ‡บ๐Ÿ‡ธ!!!
#4th of July โค๏ธโค๏ธโค๏ธ
What a beautiful #july4th surprise! Sending so much love to my countrymen from across the sea! #independanceday
Happy July 4th! ๐Ÿ‡บ๐Ÿ‡ธ
My contribution to tonight's celebration dinner. #Happy4th
Star spangled back ๐Ÿ˜‰ happy #fourthofjuly !!!
๐Ÿ”ดโšช๏ธ๐Ÿ”ต #teamnosleep
weekend ๐Ÿ‡บ๐Ÿ‡ธ๐Ÿ‡บ๐Ÿ‡ธ๐Ÿ‡บ๐Ÿ‡ธ
โœŒ๐Ÿผ๏ธ Thanks for the swimmers @issademar
Rรญo
Off to find Dory! ๐Ÿ  (Yes, my snorkel gear is pink ๐Ÿ˜‰๐Ÿ’–) #IslandAdventures #UnderTheSea
#Proud #CanadianEH ๐Ÿ‡จ๐Ÿ‡ฆ
Weekend vibes ๐Ÿ–
๐Ÿ๐Ÿ๐Ÿฏ๐Ÿ’–
HAPPY CANADA DAY TO ALL MY FELLOW CANADIANS!!! Forever proud to rep the maple leaf ๐Ÿ๐Ÿ‡จ๐Ÿ‡ฆ๐ŸŽ‰
Beach dayz.
And the groom wore stars โญ๏ธ #findingneiman
happy 4th of July !!!!!!! ๐ŸŒน
Thank you for an exquisite 4th of July David โš“๏ธ๐ŸŽถ๐Ÿ˜˜ @davidgeffen
As you can see, Moxie has no idea that there'll be more fireworks tonight. But my brother and I do, so we're ready: Thunder shirt, interior cozy room, calming music, and lots of love. Have fun out there everybody, and be safe โค๏ธ๐Ÿ‡บ๐Ÿ‡ธโค๏ธ
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The storms will spread eastward on Monday into the mid-Atlantic — leaving Fourth of July festivities in flux.

A chance of heavy rain throughout the day Monday could postpone fireworks on the National Mall for the first time in history, according to NBC Washington.

West Virginia — which has been ravaged by deadly floods — was among the states bracing for heavy rain on Monday. The National Weather Service bureau in Charleston posted a flash-flood watch beginning in the pre-dawn hours Monday through the day.

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