Posted June 15, 2018 8:50 p.m. EDT
Canadian air will hold on one more day in New England and the Middle Atlantic. Low humidity and moderate temperatures are in store Saturday. Warm and humid air will allow showers and thunderstorms to erupt from the Gulf of Mexico coast to the southern Atlantic seaboard and southern Appalachians. As tropical moisture begins to feed northwest, downpours are likely to increase in frequency and intensity as the weekend progresses in coastal Texas. By early next week, coastal and central Texas may contend with incidents of flash and urban flooding.
Farther north, a heat wave will continue to build across much of the Midwest. High temperatures are forecast to reach the middle to upper 90s from the central Plains to the Ohio Valley. Strong storms and drenching downpours will rim the northern part of the heat over the northern Plains and Upper Midwest.
In the West, downpours from the storm Bud will spread from Arizona and New Mexico to Colorado and Utah. While rain may ease drought and fire concerns, flash flooding and mudslides may become a problem. Dry weather is forecast to hold along the Pacific Coast, while storms are likely over the Sierra Nevada and parts of the Cascades.
FOCUS: Record Heat In the East on Monday
Heat from the Midwest and Ohio Valley will flood the Northeast on Monday and record-high temperatures will be challenged from Boston to Washington, D.C. It will be important to stay hydrated and cool, especially for those susceptible to the heat.