Surging humidity and the approach of a system from the Midwest will bring about some very drenching and potentially disruptive thunderstorms at midweek around Washington, D.C., and Baltimore.
The window on favorable weather for outdoor plans and projects will close on Wednesday.
Heavy showers and thunderstorms are in the offing Wednesday into Thursday morning. The rainfall during this period could be locally excessive and may trigger incidents of flash and urban flooding, as well as the associated travel delays.
Downpours could affect play between the Orioles and the White Sox at Camden Yards on Wednesday evening.
The system will bring the risk of drenching and gusty storms to a large part of the Northeast with travel delays likely on a regional basis. The storms will affect the Midwest into Tuesday night.
Locally, a couple of locations could be hit with a popup thunderstorm as early as Tuesday afternoon.
Another round of showers and storms may swing through on Friday.
Rounds of drenching showers and thunderstorms will heighten the risk of flash flooding across the northeastern United States through the final weekend of July.
Rounds of showers and thunderstorms moving westward off the coast of Africa may pave the way for future tropical systems over the Atlantic Ocean in the weeks ahead.
Highs will run between 10 and 15 degrees Fahrenheit above average across much of the interior western United States into the upcoming weekend.
A budding tropical system threatens to bring flooding rain to the Philippines into this weekend with potential future impacts on China and Taiwan.
Summer calls for extra precautions when spending time outdoors, including taking proactive measures against mosquitos, ticks and other pests.
The destructive Sand and Soberanes Fires grew out of control this week in California, while severe storms caused travel problems in the Northeast.
Colorado Springs, Colorado (1978)
A freak thunderstorm dropped damaging hail to a depth of 2 feet. Much of it had to be plowed from the freeway.
July 29th is historically a rainy day in Waynesburg, PA. It all began in 1878 when a farmer casually told drug store clerk William Allison that it always seemed to rain on July 29th in this southwestern PA town. The clerk made a note of it and started keeping a yearly tabulation. July 29th, 2001 was the 104th rainfall in the past 124 years on this date.
Mt. Washington, NH (1989)
34 degrees with a 45-mph wind gust (minus 6 degrees wind chill temperature).