Posted October 31, 2018 10:00 p.m. EDT
The powerful storm system that threatened Halloween festivities across the Deep South on Wednesday will continue to produce severe weather on Thursday throughout the United States. Soaking rain will increase the risk of flash flooding across the Ohio and Tennessee valleys as severe thunderstorms occur along the northern Gulf Coast. The strongest storms may produce damaging winds, flooding downpours and isolated tornadoes.
Some of the rain from the storm will expand from northern Pennsylvania to New England. Aside from a few spotty thunderstorms over South Florida, the rest of the East Coast can expect a dry and mild start to November.
A bit of rain will linger across Arkansas, eastern Oklahoma and southern Missouri. The southern Plains will turn dry in the wake of the storm.
A new storm system will move into the Dakotas with showers on Thursday. Rain and snow showers will dot the northern and central Rockies while steadier rain falls over parts of the Northwest.
The rain should remain well north of the Southwest, where gusty Santa Ana winds will continue to increase the risk of wildfires and push temperatures above normal in Southern California.
FOCUS: Election Day Outlook
A large storm system is expected to produce rain and thunderstorms from the Great Lakes to the Gulf Coast on Tuesday. Rain may mix with snow over Minnesota. Dry conditions will extend from California to the central Plains. Showers may occur in the Northwest.