2:35 PM: Heavy Rain Moving North
Over the last 2 hours, a line of heavy thunderstorms spreading from LI into northern NJ tracked northwest, spreading into the rest of northern NJ and SE NY, while a narrow line of heavy storms formed in central/eastern Long Island and moved north into Connecticut. As the latest radar shows, most of the storms are currently to the north of the area. The widespread heavy rain is mainly over for today, although additional scattered showers and thunderstorms are still possible later this afternoon and evening.
Central Park has recorded 3.02 inch of rain so far, a little over 1 inch in just an hour. This storm total is about 72% of the average May rainfall (4.19″), and cut this year’s precipitation deficit by over a half, which as of yesterday was over 5 inches below average. The highest rain totals came out of NYC into eastern NE NJ with additional reports of 2-3 inches of rain, while the rest of northern NJ and SE NY have observed at least 1/2 to 1.5 inch of rain. LI and CT are on the drier side, with at least 1/4 to 1/2 inch so far, locally higher in some spots. A sharp rain gradient was observed east of NYC; while JFK had 1.54″ of rain, Farmingdale, NY (Nassau) only recorded 0.34″. Some additional rain totals so far include 2.28″ in LaGuardia airport and 2.14″ in Teterboro, NJ.