A storm system moving through the Rockies will move east and spread snow into the Plains during the day on Tuesday.
Although the heaviest snow is forecast to fall over the mountains, accumulations may still lead to some travel delays in the lower elevations from Colorado to Montana and into Iowa through Tuesday.
This includes the cities of Billings and Missoula, Mont.; Cheyenne and Casper, Wyo.; Rapid City, S.D., Denver, Colo.; and Omaha, Neb.
While snow may begin to accumulate on elevated and grassy surfaces shortly after the onset, it will take longer to stick on roadways due to the recent record warmth.
However, once the snow does start to accumulate on roads it can lead to slick conditions, slowing traffic and causing longer commutes.
Not only will this snow raise the risk of travel delays, but also avalanches.
The snowpack in the mountains has undergone weakening over the past several days due to the recent snow and milder weather. Additional weight on this snow can trigger avalanches in the northern Rockies.
Snow will taper off on Tuesday night as the system tracks eastward, bringing the threat of snow to the Northeast for Wednesday.
Roads turned into rivers in parts of the mid-Atlantic on Saturday due to flooding downpours.
Rounds of drenching showers and heavy thunderstorms will heighten the risk of flash flooding across the northeastern United States through the final weekend of July.
Tropical Storm Nida threatens to bring flooding rain to the Philippines into this weekend with future impacts on China and Taiwan.
As several large fires continue to rage across the western United States, weather conditions will gradually improve for firefighting efforts this week.
Additional downpours are likely to roll across northern New Jersey and further suspend play during the late rounds at the 98th PGA Championship at Baltusrol Golf Club this weekend.
A tropical wave approaching the Caribbean Sea will attempt to reactivate the Atlantic Basin during the first week of August.
La Crosse, WI (1992)
August temperature only 68.0 degrees for month; coolest since July 1891.
New York City, NY (1996)
No 90 degree reading in Central Park in all of June and July - the first time on record this has happened.
Kanata, Ontario, Canada (1996)
A severe thunderstorm downed electrical wires and trapped people in their cars and a bus for 1-2 hours. Amazingly, nobody was injured.