Areas in the Midwest and Northeast face the risk of drenching, gusty and locally severe thunderstorms on Wednesday.
Tropical Depression Two has formed in the Atlantic and could become the next tropical storm of the season by midweek.
Severe storms will rumble through parts of the Midwest, including Chicago, early Tuesday night.
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.
With the recent heat fading away, more relief will greet the Northwest by midweek in the form of rain.
Powerful winds, heavy rainfall and dangerous mudslides will threaten Taiwan on Wednesday as Matmo moves across the island.
A potent storm system moving out of the Northwest United States will bring an elevated risk of tornadoes to parts of Alberta and Saskatchewan on Thursday.
Unseasonable warmth is expected to continue from the United Kingdom through northern Europe and Scandinavia into the weekend.
Minneapolis will see seasonable weather for the next several days before another round of storms looms over the weekend.
Spokane, WA (1980)
Mt. St. Helen's erupted again; flash flood watch issued for 20 mile radius due to mud slides.
Heat wave continues; Ft. Worth, Waco and Wichita Falls all over 100 degrees for the 30th consecutive day. El Paso had its 40th consecutive day of 100 degree plus heat.
Barrow, Alaska (1989)
Thunder reported for the first time since July 1982 (no rain fell with this so-called storm) July 1989 did go on to become the wettest July on record with more than 3 inches of rain.