Severe Weather History


Hazard archive · 1950 — present

Flash Flood in Ulster County, New York

71

Recorded events

1

Direct deaths

1

Direct injuries

$8.3M

Property damage

Flash Flood in Ulster County, New York: 71 recorded events between 1996 and 2023. The strongest on record measured 0. That places the county #328 nationally and #18 statewide for this hazard.

Decade by decade

Flash Flood in Ulster County, New York: events per decade

Flash Flood in Ulster County, New York: recorded events per decade
Flash Flood in Ulster County, New York: recorded events per decade

Reporting practice changed over time — early decades are undercounted, not calmer.

The busiest decade for flash flood in Ulster County is the 2010s, when 30 of the county's 71 recorded events were logged. Comparing decades is useful for spotting active periods, but the earliest years are thin because systematic reporting for this hazard began later.

Within the Ulster County archive, flash flood makes up 7.5% of all recorded severe weather across 7 hazard types. Nationally the county sits at #328 for this hazard and #18 within New York, putting it in the 89.2 percentile of all U.S. counties.

Seasonality

Events by month

4Jan
0Feb
1Mar
0Apr
2May
5Jun
23Jul
13Aug
15Sep
2Oct
1Nov
5Dec

Jul is the peak month for flash flood in Ulster County with 23 recorded events, while Feb is the quietest. Seasonality here is a property of the archive as much as the climate: reports cluster where population and spotter networks are densest.

Significant events

Deadliest on record

DateLocationScaleDeathsInjuriesDamage
Dec 17, 2000SHANDAKEN010$0
Jul 13, 1996TOWN OF ROCHESTER001$30K
Source: NOAA/NCEI Storm Events · dates UTC

Most recent

Latest recorded events

DateLocationMagnitudeDamage
Jul 18, 2023GANAHGOTE0$5K
Jul 9, 2023OHIOVILLE0$20K
Sep 2, 2021PATAUKUNK0$0
Sep 2, 2021GREENFIELD PARK0$0
Sep 2, 2021ELLENVILLE0$0
Sep 2, 2021MILTON0$0
Sep 2, 2021LIBERTYVILLE0$0
Jul 18, 2021MT MERION PARK0$0
Jul 8, 2021PORT EWEN0$0
Aug 10, 2020SAUGERTIES0$0
Source: NOAA/NCEI Storm Events · dates UTC · recent entries may be preliminary

Other hazards here

More from Ulster County

County overview →

From the record

What the reports say

Written by National Weather Service staff at the time of the event · public domain

Quick answers

Frequently asked

How many flash flood events are on record in Ulster County, New York?

71 flash flood events are recorded in Ulster County between 1996 and 2023, causing 1 direct deaths.

What is the strongest flash flood recorded in Ulster County?

The strongest flash flood on record in Ulster County measured 0.

Where does the flash flood data for Ulster County come from?

All events come from the NOAA/NCEI Storm Events Database, the federal public-domain archive of severe weather reports. Dates are UTC, damage is as reported and not inflation-adjusted, and the most recent entries may still be revised.

Cite this page

“Flash Flood in Ulster County, New York.” Severe Weather History. severeweatherhistory.com/county/new-york/ulster-county/flash-flood/ · Data: NOAA/NCEI, FEMA, U.S. Census — public domain.


Historical reference only — for official alerts visit weather.gov