Heavy rains will raise a risk of flash flooding across much of Oklahoma on Wednesday while unusually cool weather will continue to dominate the eastern half of the nation, according to the National Weather Service (NWS).
Heavy rains and thunderstorms that impacted the front range of the Colorado Rockies on Tuesday will shift southeastward across Oklahoma on Wednesday. The most organized area of precipitation should develop to the northeast of a surface wave slowly dropping from southeast Colorado to north central Texas.
An anomalous trough carved out over the eastern half of the nation will keep temperatures below normal from the Great Plains to the Atlantic Coast. Conditions will be especially cool across the Great Lakes and interior New England.
Summer heat will persist across northern portions of the Intermountain West and Rockies Wednesday and Thursday.