From Sullivan County emergency management:

“Sullivan County Emergency Management officials are asking residents, primarily in the north western section of the county, to be alert for severe weather conditions for this evening which is likely to result in flash flooding conditions in low lying areas.

Residents are urged to monitor weather conditions and be prepared to move to higher ground if necessary.  Do not drive through flooded roadways and call 9 1 1 if you are in immediate danger. ”

Parts of northwestern Sullivan are under a flood warning through Wednesday because the Beaver Kill near Cooks Falls is near flood stage.