Sep 25, 2018
Rain developed across the area ahead of an approaching warm front, consolidating into a slow-moving band of heavy rain west of New York City by late morning. Precipitable water values increased from 1.84 on the morning sounding from Upton, NY to 2.13 by evening. Both of these values are above the 90th percentile based on a sounding climatology, with the 2.13 precipitable water value on the evening of the 25th a record for the date. Rainfall amounts generally ranged from 1-4 inches across New Yor
Source: NOAA National Weather Service Storm Events Database (event 784233). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Suffolk County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.