Alert archive / New York / Flash Flood Warnings in 2026

Flash Flood Warning 7, NWS Albany, NY

July 21, 2026Ulster County, New York

NWS Albany, NY issued this flash flood warning at Jul 21, 2026, 9:48 PM EDT for Ulster County, New York. It was in force for 3 hr. 3 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Jul 21, 2026, 9:48 PM EDT (01:48 UTC)
Expired
Jul 22, 2026, 1:00 AM EDT
In force
3 hr
Issued by
NWS Albany, NY
Area
Storm-based polygon
Flood severity
None

County Ulster County, NY

The radar

The Albany radar (KENX), 103 km from the middle of the area, began a volume at 01:51 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

TimeReportWhereRemark
Jul 21, 10:32 PM EDTRAIN 3.25 W Clintondale, NY
Jul 21, 10:35 PM EDTRAIN 5.25 N Wallkill, NY
Jul 21, 10:43 PM EDTRAIN 4.3New Paltz, NY

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this flash flood warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

Albany, NY (KALY), launched 00:00Z, 1.8 hours before the alert went out and 116 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Albany, NY at 00:00Z on 2026-07-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 291 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Albany, NY at 00:00Z on 2026-07-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 117 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
291 J/kg
Mixed-layer CIN
-89 J/kg
Mixed-layer LCL
764 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
117 m²/s²
0-3 km storm-relative helicity
204 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.5

Open this sounding in Storm Lab

The text

As transmitted.

426 
WGUS51 KALY 220148
FFWALY
NYC111-220500-
/O.NEW.KALY.FF.W.0007.260722T0148Z-260722T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Albany NY
948 PM EDT Tue Jul 21 2026

The National Weather Service in Albany has issued a

* Flash Flood Warning for...
  Southeastern Ulster County in east central New York...

* Until 100 AM EDT.

* At 948 PM EDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Up to 1 inch of rain has 
  fallen. Additional rainfall amounts of 1 to 2 inches are possible 
  in the warned area. Flash flooding is ongoing or expected to begin 
  shortly.

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...Radar.

  IMPACT...Flash flooding of small creeks and streams, urban
           areas, highways, streets and underpasses as well as
           other poor drainage and low-lying areas.

* Some locations that will experience flash flooding include...
  Poughkeepsie, New Paltz, Wallkill, Milton, Highland, Modena, 
  Lloyd, Gardiner, Ardonia, Jenkinstown, Clintondale, Ireland 
  Corners, Clintondale Station, Forest Glen, Sylva, Tuckers Corner, 
  Putt Corners, Flint, Ohioville and New Hurley.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

Be especially cautious at night when it is harder to recognize the 
dangers of flooding.

Be aware of your surroundings and do not drive on flooded roads.

&&

LAT...LON 4169 7394 4161 7412 4162 7413 4160 7413
      4159 7416 4159 7417 4165 7424 4175 7409
      4178 7402 4170 7395

FLASH FLOOD...RADAR INDICATED

$$

24
1 follow-up statement
045 
WGUS71 KALY 220310
FFSALY

Flash Flood Statement
National Weather Service Albany NY
1110 PM EDT Tue Jul 21 2026

NYC111-220500-
/O.CON.KALY.FF.W.0007.000000T0000Z-260722T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Ulster NY-
1110 PM EDT Tue Jul 21 2026

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1 AM EDT WEDNESDAY 
FOR SOUTHEASTERN ULSTER COUNTY...

At 1110 PM EDT, Doppler radar indicated thunderstorms producing 
heavy rain across the warned area. Between 1 and 3 inches of rain 
have fallen. Flooding impacts will continue, but no additional 
rainfall is expected. Flash flooding is ongoing or expected to begin 
shortly.

HAZARD...Flash flooding caused by thunderstorms.

SOURCE...Radar.

IMPACT...Flash flooding of small creeks and streams, urban areas,
         highways, streets and underpasses as well as other poor
         drainage and low-lying areas.

Some locations that will experience flash flooding include...
  Poughkeepsie, New Paltz, Wallkill, Milton, Highland, Modena, 
  Lloyd, Gardiner, Ardonia, Jenkinstown, Clintondale, Ireland 
  Corners, Clintondale Station, Forest Glen, Sylva, Tuckers Corner, 
  Putt Corners, Flint, Ohioville and New Hurley.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

Be especially cautious at night when it is harder to recognize the 
dangers of flooding.

Be aware of your surroundings and do not drive on flooded roads.

Please report flooding to the National Weather Service by email at 
ALB.stormreport@noaa.gov... On Facebook at 
www.facebook.com/nwsalbany or twitter @nwsalbany.

&&

LAT...LON 4169 7394 4161 7412 4162 7413 4160 7413
      4159 7416 4159 7417 4165 7424 4175 7409
      4178 7402 4170 7395

FLASH FLOOD...RADAR INDICATED

$$

24

What forecasters said that day

The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Albany, NY wrote its last area forecast discussion before this flash flood warning went out at Jul 21, 8:09 PM EDT, 1 hour 39 minutes earlier. Its key messages:

  • 1) Additional showers/thunderstorms across western NYS will track eastward later this evening, though should be weakening in intensity, with showers/storms with locally heavy rain redeveloping across portions of the mid Hudson Valley, SE Catskills and NW CT later this evening. 2) Tranquil weather with temperatures trending slightly above normal Thursday into this weekend.
Area forecast discussion, Jul 21, 8:09 PM EDT, 1 hour 39 minutes before
Area Forecast Discussion
National Weather Service Albany NY
809 PM EDT Tue Jul 21 2026

.WHAT HAS CHANGED...
Tornado Watch #507 cancelled. Reduced rainfall chances for the
next few hours across most of southern VT, western MA, and eastern
NY outside of the mid Hudson Valley and SE Catskills given
current radar trends.

&&

.KEY MESSAGES...
1) Additional showers/thunderstorms across western NYS will
track eastward later this evening, though should be weakening
in intensity, with showers/storms with locally heavy rain
redeveloping across portions of the mid Hudson Valley, SE
Catskills and NW CT later this evening.

2) Tranquil weather with temperatures trending slightly above normal
Thursday into this weekend.

&&

.DISCUSSION...
KEY MESSAGE 1...

As of 8 PM EDT, band of showers/storms associated with warm
advective regime has shifted mainly east of the region. However,
additional isolated/scattered showers and thunderstorms across
NE PA will continue expanding northeast this evening. Additional
locally heavy downpours will be possible with these as they
expand into the mid Hudson Valley, SE Catskills and NW CT
region.

Elsewhere, showers/thunderstorms across western NY will
continue tracking east/northeast, reaching the SW Adirondacks
and western Mohawk Valley later this evening, and possibly as
far east as the Capital Region, Schoharie County and Lake George
region toward or just after midnight. Although can not rule out
some spotty gusty winds with this convection, widespread severe
weather looks unlikely given loss of diurnal heating.
Patchy/areas of fog may develop overnight, especially in areas
which received prior locally heavy rainfall.

The warm sector shifts eastward tomorrow as the main cold front
and trough axis swings into the Northeast. Given the early
arrival of the cold front pushing into the eastern NY by 15 - 18
UTC, the highest chance for the warm sector to have enough time
to destabilize before the strongest forcing arrives look to be
in areas mainly east of the Hudson River, especially in western
New England. The latest Day 2 SPC Outlook continues to place a
marginal (level 1 of 5) risk for severe weather in southern
Berkshire and Litchfield Counties where there is a favorable
overlap of 500-1000J/kg of SB CAPE and 40-45kts of deep layer
shear. Latest CAMs shows an initial line of showers developing
along the incoming cold front late morning that grows upscale
into line segments and storm clusters as it enters western New
England and the more unstable environment mainly after 17-18
UTC. Damaging winds will also again be the main hazard through
late afternoon before the front finally pushes eastward into
New England. Otherwise, humidity will trend downwards behind
the cold front from west to east through the day with clearing
skies.

KEY MESSAGE 2...

We will enjoy a stretch of pleasant and dry weather Thursday
through this weekend as high pressure builds overhead.
Temperatures trend upwards Friday into the weekend as high
pressure builds off shore promoting southwesterly return flow
but we do not expect oppressive heat. Another shortwave
approaches late this weekend into early next week but there is
still uncertainty on timing and placement of any showers or
convection.

&&

.AVIATION /00Z WEDNESDAY THROUGH SUNDAY/...
VFR to MVFR conditions begin the 22/00z TAF period. Between 1z and
6z, MVFR to IFR ceilings begin and continue through the 9-12z
timeframe. For MVFR to IFR visibilities due to fog development is
likely at KPSF between 3z and 6z before stratus clouds become more
dominate and decrease fog development. Otherwise after 12z, ceilings
gradually improve back to VFR and continue through the end of the
TAF period. Winds continue to be light and variable into the
overnight hours before becoming westerly ranging between 10 and 15
knots for tomorrow afternoon.

Outlook...

Wednesday Night: No Operational Impact. NO SIG WX.
Thursday: No Operational Impact. NO SIG WX.
Thursday Night: No Operational Impact. NO SIG WX.
Friday: No Operational Impact. NO SIG WX.
Friday Night: No Operational Impact. NO SIG WX.
Saturday: No Operational Impact. NO SIG WX.
Saturday Night: No Operational Impact. NO SIG WX.
Sunday: No Operational Impact. NO SIG WX.

&&

.ALY WATCHES/WARNINGS/ADVISORIES...
CT...None.
NY...None.
MA...None.
VT...None.

&&

DISCUSSION...24/31
AVIATION...05

In the hours before

Special weather statement, Jul 21, 4:33 PM EDT, 5 hours 15 minutes before
Special Weather Statement
National Weather Service Albany NY
433 PM EDT Tue Jul 21 2026

CTZ001-NYZ061-065-066-212100-
Northern Litchfield CT-Eastern Dutchess NY-Eastern Columbia NY-
Western Dutchess NY-
433 PM EDT Tue Jul 21 2026

...STRONG THUNDERSTORMS WILL IMPACT NORTHWESTERN LITCHFIELD...
NORTHEASTERN DUTCHESS AND SOUTHERN COLUMBIA COUNTIES THROUGH 500 PM
EDT...

At 433 PM EDT, Doppler radar was tracking a cluster of strong
thunderstorms near Amenia, or 16 miles east of Rhinebeck, moving east
at 15 mph.

HAZARD...Wind gusts up to 50 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

Locations impacted include...
Amenia, Sharon, Pine Plains, Millbrook, Millerton, Falls Village,
Stanfordville, Bethel, Salisbury, Smithfield, Ancramdale, Lithgow,
Shunpike, Shekomeko, Taconic, Washington Hollow, Mabbettsville,
Pulvers Corners, Amesville, and Joyceville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Torrential rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

A Tornado Watch remains in effect until 900 PM EDT for northern
Connecticut...and east central New York.

&&

LAT...LON 4176 7379 4198 7370 4205 7351 4205 7338
      4186 7331
TIME...MOT...LOC 2033Z 248DEG 15KT 4189 7359

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...50 MPH

KSL
Special weather statement, Jul 21, 5:01 PM EDT, 4 hours 47 minutes before
Special Weather Statement
National Weather Service Albany NY
501 PM EDT Tue Jul 21 2026

NYZ033-212130-
Hamilton NY-
501 PM EDT Tue Jul 21 2026

...A STRONG THUNDERSTORM WILL IMPACT NORTHWESTERN HAMILTON COUNTY
THROUGH 530 PM EDT...

At 501 PM EDT, Doppler radar was tracking a strong thunderstorm 9
miles south of Piercefield, or 13 miles southwest of Tupper Lake
Village, moving east at 35 mph.

HAZARD...Wind gusts up to 50 mph and penny size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor hail damage to vegetation is
         possible.

Locations impacted include...
Nehasane, Sabattis, Partlow, Little Tupper Lake, Robinwood, and Lake
Lila.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Torrential rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

A Tornado Watch remains in effect until 900 PM EDT for eastern New
York.

&&

LAT...LON 4407 7427 4396 7484 4407 7485 4412 7428
TIME...MOT...LOC 2101Z 255DEG 29KT 4409 7465

MAX HAIL SIZE...0.75 IN
MAX WIND GUST...50 MPH

KSL
Special weather statement, Jul 21, 6:05 PM EDT, 3 hours 43 minutes before
Special Weather Statement
National Weather Service Albany NY
605 PM EDT Tue Jul 21 2026

NYZ064>066-212245-
Eastern Dutchess NY-Western Dutchess NY-Eastern Ulster NY-
605 PM EDT Tue Jul 21 2026

...A STRONG THUNDERSTORM WILL IMPACT SOUTHEASTERN ULSTER AND CENTRAL
DUTCHESS COUNTIES THROUGH 645 PM EDT...

At 605 PM EDT, Doppler radar was tracking a strong thunderstorm near
Modena, or near New Paltz, moving east at 30 mph.

HAZARD...Wind gusts up to 50 mph and penny size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor hail damage to vegetation is
         possible.

Locations impacted include...
Poughkeepsie, New Paltz, Plattekill, Pleasant Valley, Highland,
Millbrook, Modena, Fairview, Red Oaks Mill, Myers Corner, Beekman,
Lloyd, Tuckers Corner, Salt Point, Forest Glen, Knapps Corner, Hoxie
Corner, Clove Valley, Elting Corners, and Haviland.

This includes Interstate 87 near exit 18.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Torrential rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

&&

LAT...LON 4161 7411 4173 7414 4185 7367 4160 7364
TIME...MOT...LOC 2205Z 261DEG 25KT 4168 7404

MAX HAIL SIZE...0.75 IN
MAX WIND GUST...50 MPH

KSL
Special weather statement, Jul 21, 6:47 PM EDT, 3 hours 1 minute before
Special Weather Statement
National Weather Service Albany NY
647 PM EDT Tue Jul 21 2026

CTZ001-013-NYZ065-066-212330-
Southern Litchfield CT-Northern Litchfield CT-Eastern Dutchess NY-
Western Dutchess NY-
647 PM EDT Tue Jul 21 2026

...A STRONG THUNDERSTORM WILL IMPACT WEST CENTRAL LITCHFIELD AND EAST
CENTRAL DUTCHESS COUNTIES THROUGH 730 PM EDT...

At 647 PM EDT, Doppler radar was tracking a strong thunderstorm near
Millbrook, or 10 miles northwest of Pawling, moving east at 30 mph.

HAZARD...Wind gusts up to 50 mph and penny size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor hail damage to vegetation is
         possible.

Locations impacted include...
Kent, Millbrook, New Preston, Cornwall Bridge, Wingdale, Dover
Plains, Warren, Cornwall, Bantam, South Dover, Hoxie Corner, Skiff
Mountain, Clove Valley, Marble Dale, South Amenia, Billings, Pleasant
Ridge, Bains Corner, North Kent, and Bulls Bridge.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Torrential rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

A Tornado Watch remains in effect until 900 PM EDT for northern
Connecticut.

&&

LAT...LON 4176 7379 4190 7328 4166 7321 4165 7349
      4166 7349 4167 7352 4164 7352 4163 7378
TIME...MOT...LOC 2247Z 256DEG 27KT 4170 7370

MAX HAIL SIZE...0.75 IN
MAX WIND GUST...50 MPH

KSL
Special weather statement, Jul 21, 9:07 PM EDT, 41 minutes before
Special Weather Statement
National Weather Service Albany NY
907 PM EDT Tue Jul 21 2026

NYZ064>066-220130-
Eastern Dutchess NY-Western Dutchess NY-Eastern Ulster NY-
907 PM EDT Tue Jul 21 2026

...A STRONG THUNDERSTORM WILL IMPACT SOUTHEASTERN ULSTER AND
NORTHWESTERN DUTCHESS COUNTIES THROUGH 930 PM EDT...

At 907 PM EDT, Doppler radar was tracking a strong thunderstorm over
Poughkeepsie, moving northeast at 40 mph.

HAZARD...Wind gusts up to 40 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

Locations impacted include...
Poughkeepsie, Kingston, New Paltz, Rhinebeck, Hyde Park, Milton,
Plattekill, Pleasant Valley, Wappingers Falls, Highland, Millbrook,
Modena, Stanfordville, Port Ewen, Fairview, Marlboro, Red Oaks Mill,
Myers Corner, Staatsburg, and Lloyd.

This includes Interstate 87 near exit 18.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Torrential rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.

&&

LAT...LON 4158 7396 4159 7396 4159 7398 4163 7412
      4200 7397 4190 7354 4156 7389
TIME...MOT...LOC 0107Z 212DEG 34KT 4166 7394

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH

KSL
Special weather statement, Jul 21, 9:28 PM EDT, 20 minutes before
Special Weather Statement
National Weather Service Albany NY
928 PM EDT Tue Jul 21 2026

NYZ064>066-220215-
Eastern Dutchess NY-Western Dutchess NY-Eastern Ulster NY-
928 PM EDT Tue Jul 21 2026

...A STRONG THUNDERSTORM WILL IMPACT SOUTHEASTERN ULSTER AND NORTHERN
DUTCHESS COUNTIES THROUGH 1015 PM EDT...

At 928 PM EDT, Doppler radar was tracking a strong thunderstorm over
Fairview, or near Poughkeepsie, moving north at 20 mph.

HAZARD...Wind gusts up to 50 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

Locations impacted include...
Poughkeepsie, Kingston, Rhinebeck, Hyde Park, Milton, Pleasant
Valley, Highland, Red Hook, Millbrook, Fairview, Red Oaks Mill, Lake
Katrine, Stanfordville, Staatsburg, Port Ewen, Lloyd, Esopus, Milan,
Tuckers Corner, and Salt Point.

This includes Interstate 87 near exit 18.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Torrential rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

&&

LAT...LON 4161 7383 4164 7409 4203 7400 4193 7360
TIME...MOT...LOC 0128Z 193DEG 18KT 4174 7394

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...50 MPH

KSL

The office that day

Everything else NWS Albany, NY issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 21, 9:07 PM EDTSpecial Weather StatementALYDutchess23 min
Jul 21, 9:28 PM EDTSpecial Weather StatementALYDutchess47 min
Jul 21, 10:14 PM EDTSpecial Weather StatementALYDutchess46 min

Nearby

Flash Flood Warnings in New York, 2026Every flash flood warning in 2026

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.