This morning an inverted trough from coastal storm developing, gave New York City, Western Long Island and parts of New Jersey, some heavy rain and thunderstorms. A lull activity occuring for most of tri-state earlier this afternoon. But the coastal storm deepening and moving slower back to the coast this evening. Bands of rain with some embedded convection is now rotating back into Tri-State area.  Winds have been increasing has well, a little more than expected. Some coastal locations have sustained winds 20-30mph with gusts 30-40mph. Just east of the area, Block Island and Buzzard Bay have reported wind gust up to 45mph. Buoy south of LI have gusts to 49mph and 51mph. The highest winds are likely being brought down from aloft by thunderstorms, currently offshore. A cold pool aloft with this storm and as well warmer than normal sea-surface temperatures is enhancing instability near and off the coast. Radar has also detected rotation some of these thunderstorms today. Helicity along with instability may some waterspouts to form. But as these storm move closer to land, they have weakened somewhat, as they enter less unstable airmass.

I expect bands of rain to continue to work their way inland from the ocean tonight and tomorrow. Some thunderstorms are still possible tonight. The 21z RAP shows 925mb winds at 40-50kt+ across coastal areas tonight. Heavy showers or thunderstorm could bring some of these winds down to surface, near the coast. Otherwise still not this storm, to much more than nuisance across the area. Tidal flooding should no be a\ issue along most coastal locations as winds are switching to the north and northwest. The only exception may be over parts of the north shore of Long Island or other north-facing shorelines.

This storm will be weaken pull away from Thursday night and Friday. With slow clearing taking place. This weekend still appears to be mostly dry.