Look at what heavy clouds, steady rain and an easterly wind can do to the daily temperature cycle! All three combined to keep the temperature and dew point between 67 and 70 degrees yesterday. The record-breaking rains pushed this month into the top ten of rainiest August's ever recorded in Central Park. As of early this morning the monthly total is 9.03 inches, only 0.05 inches behind 7th place 1942. The wettest August ever was 1990, which had 12.36 inches of rain.

This storm system is primed to produce lots of rain. There's a deep layer of tropical moisture, an upper-level trough to lift that moist air upward and at the surface a coastal low clashing with a high pressure system to our west. The axis of heaviest rain has moved to eastern Long Island and Connecticut. So far today the city has been in a relative dry slot as tropical moisture swirls its way around the coastal low. Another round of showers and thunderstorms should be here this afternoon and last through the night. With the ground obviously saturated there is a flash flood watch in effect for the entire metro region.

As the coastal low moves northward it will eventually be replace by a dry air mass that's currently over the Great Lakes. The rain looks like it will taper off as the day progresses tomorrow. Wednesday should be mostly sunny with highs in the low 80s while Thursday is expected to be just as warm but with a mix of sun and clouds.