The agency predicts a high of 85 degrees with an 80 percent chance of precipitation Thursday; thunderstorms are expected during the afternoon, into the evening and overnight.
"These storms may become severe during the afternoon and evening," according to the forecasting agency. "The biggest threat from these storms will be damaging wind gusts to 60 mph and hail to one inch in diameter.
"In addition, very heavy rainfall may accompany these storms, which could lead to localized flooding," the NWS said. "... The thunderstorms will be triggered by a strong cold front sweeping across lower Michigan."