Thunderstorms with the risk of damaging winds, hail, isolated tornadoes and torrential downpours will begin to shift eastward over the central United States this weekend.
A pattern favoring waves of progressively cooler air will set up across much of the Midwest and Northeast during next week and could continue into early May.
Rounds of flooding and severe storms slammed the South and Plains this week, while a storm system unleashed dust storms and snow in the West.
Ahead of the monsoon season in India, temperatures will swell well above normal in parts of India and Pakistan.
The 119th Boston Marathon will take place on Monday, April 20, and runners set to take on the historic course will face cool and potentially rainy conditions.
In a high-tech world of satellites, computers, mobile devices and wearables, the weather balloon is still an important tool which helps meteorologists create more accurate forecasts, especially in the case of severe weather.
Heat wave in Northeast -- 95 degrees in Washington, DC, tied April record. 94 degrees in Philadelphia, PA.
SE Virginia (1983)
4" snow at Hampton, 3" snow at Newport News (heaviest snowfalls on record so late in the season).
Colorado Rockies (1992)
Big spring snowstorm... 12" at Vail 8" at Winter Park 10" at Copper Mountain 8" at Aspen