The 17th named storm of the season developed in the western Caribbean Friday evening, becoming Rafael with winds sustained at 40 mph.
Rafael will continue to churn through the western Caribbean and affect the US and British Virgin Islands today.
The main threats will be gusty winds, soaking downpours and rough seas.
Some of the hardest hit spots will see anywhere from 2-4 inches of rain, with localized locations up to 10 inches possible.
This sort of rain will be capable of causing mudslides, rockslides and flash flooding.
As Rafael heads through the Virgin Islands and dances with the western-half of Puerto Rico, he will head north toward Bermuda by the early to middle part of next week.
Temperatures will be a few degrees below average across the UK this weekend, but largely dry conditions are expected.
After no rain for almost a month, Santiago braces for rain early in the week. Cool air follows, spreading into Chile, Argentina and Uruguay mid-week.
There is a significant chance that Jimena will turn back toward Hawaii and threaten the islands during the second week of September.
An unusually strong push of cool air for early September will move southward along the Atlantic Seaboard into the Labor Day weekend before July-like heat returns by next week.
Steering winds could take Ignacio, as a remnant storm, into the southeastern arm of Alaska or British Columbia during the middle days of next week.
Strong thunderstorms will roll across the Upper Midwest while rain and strong winds roar through the Northwest this weekend.
Minneapolis, MN (1941)
Tornado - 5 dead - $450,000 damage.
Greatest natural disaster for Arizona. Rains in central Arizona caused rivers to rise 5-10 feet per hour, sweeping cars and buildings 30-40 feet downstream. Twenty-three lives were claimed by the floodwaters. This rain came from Tropical Storm Norma.
Los Angeles, CA (1988)
110 degrees -- all-time September record.