A line of “gusty thunderstorms” was headed for Long Island, the National Weather Service said Thursday evening.
The service put out a warning that the storm had the potential to affect the region until about 8:15 p.m.
The storm warning came after two jacket-free days in the 80s. Temperatures start heading down slightly Friday, with low to mid-70s expected for much of Long Island, forecasters said.
That would still be well above the normal high for the day, which is 64 degrees at Long Island MacArthur Airport. Temperatures hit 84 degrees at the airport Wednesday and 82 on Thursday.
An air quality alert Thursday for the Long Island area remains in effect through 11 p.m., warning of elevated ozone levels and prompting health officials to recommend people avoid unnecessary strenuous outdoor activity.
Look for mostly cloudy skies Friday and highs around the mid-70s at the airport in Ronkonkoma, with the low 80s in the picture as you move farther west toward the city, the National Weather Service said. The South Fork could remain in the 60s.
Friday night brings a slight chance for showers and thunderstorms, the weather service said.
Then, along comes cooler weather for the weekend that is “more springlike,” said Rich Hoffman, News 12 Long Island meteorologist.
That’s as a cold front crosses late Friday, allowing “for cooler, but still above normal temperatures on Saturday,” the weather service said in its regional summary.
Saturday is forecast to be partly sunny, with temperatures expected to top out mostly in the low 70s.
Saturday night brings a 40 to 50 percent chance of rain through Sunday.
That’s when temperatures are expected to come in at or near normal, rising to around the mid-60s.