So far, the Lower Hudson Valley has received the most rainfall
thus far with 1 to 3 inches in different locations with some
localized higher amounts. There has already been reports of
flooding within this location.
The farther southwest section of the line is set to make its
way into Northeast NJ and into NYC this evening. For Lower
Hudson Valley, the showers and thunderstorms will continue into
this evening. For Long Island and Southern Connecticut, the line
is forecast to break apart partially but with another area of
showers and thunderstorms approaching from the south late this
evening. Further convective development is expected over parts
of the Lower Hudson Valley, parts of NYC, Southern Connecticut,
and Long Island overnight.
The forcing is positive vorticity advection from two shortwaves,
one moving across this evening and a stronger one approaching
overnight. This will be during a time when the precipitable
waters across the region remain near 2 inches.
Forecast lows in the upper 60s to lower 70s.