Drenching downpours and locally gusty thunderstorms will affect a large part of Florida during the first part of the weekend.
The rain can be heavy enough to cause flooding in low-lying areas, spoil outdoor activities and slow travel.
Folks heading to theme parks at Disney, Universal Studios, Sea World and Busch Gardens will want to prepare for wet weather by having rain slickers and waterproof footwear on Saturday.
According to Florida Weather Expert Dan Kottlowski, "The pattern has the potential to set up one thunderstorm after another passing over an area and could bring some communities in the central counties more than 6 inches of rain in a few hours."Repetitive thunderstorm activity along a narrow swath is known as a training effect.
Motorists should expect poor visibility and excessive water on area streets, secondary roads and highways including long stretches of I-4, I-75 and I-95.
The bulk of the rain is falling south of hard-hit flooded areas of the Florida Panhandle from this past week. Pensacola received more than 20 inches of rain spanning April 29-30 and ended up with close to 30 inches of rain for the month of April.
With time the zone of showers and thunderstorms will settle slowly to the south this weekend.
From Tampa to Orlando and Daytona Beach, Sunday will be the nicer of the two days this weekend with little or no rain in the offing and a return of sunshine and warmth. Odds favor the rain to slip south of Fort Myers and Miami.
The rainfall is forecast to push completely out of the Florida Peninsula by Sunday, but spotty showers may remain over the Keys in the morning.
The rain is occurring during a relatively dry part of the year for Florida, just ahead of the rainy season fed by tropical showers and thunderstorms during June, July, August and September.
As July draws to a close, a storm system swinging up from the Deep South will bring downpours to the northeastern U.S. and break the back of an extended heat wave.
Repeating and slow-moving storms will raise the risk of flash flooding and damaging winds over the northern and central High Plains into Thursday night.
The Formula One season continues this weekend, and disruptive showers and thunderstorms may impact the German Grand Prix in Hockenheim.
Highs will run between 10 and 15 degrees Fahrenheit above average across much of the interior western United States into the upcoming weekend.
The heat felt across the United Kingdom during the middle of July has faded and is not expected to return through at least the first week of August.
Another postponement may be in store at Pocono Raceway as widespread showers and thunderstorms threaten Pennsylvania on Sunday.
5-12" of rain north of Denver led to serious flash flooding (28th-29th). 108 mobile homes were destroyed and 481 others were damaged in Ft. Collins. 5 people were killed and 40 others injured.
Sharon, PA (1999)
70 mph wind gus in a thunderstorm.
Small but intense storm, said to be the worst in about 50 years, hit southern Mississippi (where Camille hit in 1969). U.S. Coast Guard cutter lost with 39 aboard.