Posted May 7, 2018 11:08 p.m. EDT
Low clouds and rain showers are forecast to linger along the North Carolina coast and South Florida on Tuesday because of a storm just offshore over the Atlantic Ocean. Spotty rain showers and afternoon thunderstorms associated with a pocket of chilly air overhead will affect areas from northern Pennsylvania to northern Georgia. Much of the rest of the country’s eastern half will experience dry weather during the day.
Farther west, rain showers and locally severe thunderstorms will affect the central and northern Plains. Some of the strongest storms have the potential to bring high wind gusts, large hail and concerns of flash flooding. The rain will be beneficial to some, as part of this region is experiencing drought conditions. Warm weather and dry conditions are in store for the southern Plains, where some locations are experiencing exceptional drought conditions.
Much of the West will have dry and sunny weather with a very warm afternoon. A large area of high pressure is forecast to build over the interior. The heat will continue to cause rapid snow cover runoff in intermediate and high elevations, resulting in high stream and river levels. In some places, this week may bring the worst flooding since the 1970s.
FOCUS: Flood Threat For The Northern Rockies
The combination of rapid snowmelt, rounds of rainfall and higher temperatures will produce localized flooding from eastern Idaho to western Montana this week. Many rivers and streams are expected to overflow their banks.