The TDS's going on were pretty wild...probably even helped some by the degree of leaves still on the trees getting sucked up.
As always, Ryan did a phenomenal job providing heads up and warning viewers and using dual-pol to illustrate.
8-confirmed tornadoes thus far.
EF-0 Branford, CT
EF-1 Stonington, CT to Westerly, RI
EF-0 in Cheshire, CT
EF-0 Sterling/Plainfield, CT
EF-0 East Islip, NY
EF-0 Nassau County, NY (skipping)
EF-1 Shirley, NY to Manorville, NY
EF-0 North Kingston, RI
This is going to be some serious stuff. Probably see lots of power outages too. Maybe winds in the lower-levels are just a tad bit weak for crazy widespread but those lapse rates are very steep plus the updrafts are looking robust. This is also crossing CT at prime heating
Gotta watch that convective cell south of Long Island...that may head towards New Haven/Branford/Clinton areas over the next 30-45 min.
Then need to watch the low-topped line as it works through central/eastern CT. It will encounter higher dewpoint/theta-e air and greater instability.
Dewpoints now into the lower 60's across southern CT. Strong convection south of Long Island. Radar sampling 70-80+ mph winds only a few thousand feet above the ground. Won't take much to mix into that given these dewpoints/llvl CAPE.
Should see lower 60's dews get into at least parts of CT, RI, SE MA over the next few hours. HRRR (per mesoanalysis) suggesting >175-200 J of 3km CAPE as well. 0-1km shear is pretty high. If any updrafts can tap into these we may see a few brief spinners today
Yet another late-season severe setup which has become a bit more of a common occurrence the past several years. Strong southerly flow will transport unseasonably moist air into the region with dewpoints potentially climbing into the lower 60's ahead of the cold front. This should contribute to 150-200 J/KG of 3km CAPE...more than sufficient for the potential of strong-to-severe thunderstorms given the degree of wind shear aloft. Damaging winds and even a few tornadoes are possible from late morning through late afternoon across the region.