Posted May 21, 2018 9:55 p.m. EDT
The Northeast will be cooler Tuesday, with periods of rain. Thunderstorms will develop in the steamy air from the Middle Atlantic states to the Southeast. A few of the storms may produce gusty winds, with possible flash flooding in spots. Areas that have recently been affected by heavy rain will be most susceptible to flooding. The Middle Atlantic should finally dry out later this week as a high-pressure system builds over the area.
High pressure will provide a dry day across the western Great Lakes. Temperatures are expected to soar across the northern Plains as warmer air moves north in the high-pressure system’s wake.
The warming will occur ahead of showers and thunderstorms developing over the High Plains and Rockies, especially in the afternoon. Some of the storms in the High Plains could turn severe, with damaging winds, hail and downpours. Any rain across the northern Plains will help ease the region’s ongoing drought.
Gusty winds will keep the risk of wildfires high in Arizona and western New Mexico. Most of Oregon and Washington will be dry and warmer.
FOCUS: Memorial Day Outlook
Flooding downpours may affect parts of the Gulf Coast and the Southeast as tropical moisture surges into the region. The Southwest and the southern Plains will be hot and dry. Showers and thunderstorms are expected in the northern Rockies and the Middle Atlantic.