The National Weather Service in Buffalo reports that a moisture-laden, tropical-like airmass will remain in place across Western New York through this evening. A flash flood watch and a hazardous weather outlook are in effect.
This sultry airmass will be favorable for thunderstorms with heavy rain to develop across Western New York, especially late this afternoon and evening when a cold front will bear down on the region from Southern Ontario, Canada.
Since many areas have already been primed with heavy rains from the past several days, additional torrential downpours will worsen an already elevated risk for localized flash flooding.
The combination of oppressive heat and very humid air will produce apparent temperatures in the mid- to upper 90s across a large percentage of the region. These values will approach heat advisory levels and then the chances for heat-related illnesses will increase for those doing outdoor activities.
