Severe t'storms, hail tomorrow

A strong upper level low sitting over the Great Lakes is providing a cold pool aloft with 500mb temperatures around -15C. The low is generating a 40kt mid level southwesterly jet across the northeast while a 995mb surface low produces southerly / south-southeasterly flow into southern New England. Abundant low level moisture combined with periods of sunshine tomorrow will destabilize the atmosphere with afternoon surface CAPE of 1000J/kg to 1500J/kg. This is a classic set up for a round of strong to severe thunderstorms to the southeast of the upper low, intersecting the low level jet. In this case, the severe threat area extends across most of New York State into western and southern New England.

With the deep cold pool aloft, the primary threat with any thunderstorms will be large hail. Damaging wind gusts are also possible and depending on the extent of the easterly component on the low level winds, we could see a tornado or two develop.

Medium chance of development

There is a new invest out there. This system is firing up some good convection, and I would say development of this system is likely.

Lets discuss Track and strength of this new invest.

My cone for this system is very wide, because this system hasn't developed yet, so we can't really be sure where it is going to head, but a track into the Gulf of Mexico is pretty much certain. Once this system gets into the Gulf of Mexico, I would say the steering currents are going to be very weak, and will allow this system to sit and strengthen due to the increasingly favorable conditions for development that is forecast.

I do expect this system to become Ana, and I do expect it to possibly become a hurricane, but we can definately not be sure of that.

Another update soon!

Zack Cooper