Alert archive / New York / Flood Watches in 2021

Flood Watch 2, NWS Albany, NY

October 25, 20215 counties in New York; Northwest Hills Planning Region, Connecticut

NWS Albany, NY issued this flood watch at Oct 25, 2021, 4:00 AM EDT for 5 counties in New York; Northwest Hills Planning Region, Connecticut. It took effect at Oct 26, 2021, 12:00 AM EDT. It was in force for 27 hr.

The area

The counties it named.

The facts

Issued
Oct 25, 2021, 4:00 AM EDT (08:00 UTC)
In effect from
Oct 26, 2021, 12:00 AM EDT
Expired
Oct 27, 2021, 3:29 AM EDT
In force
27 hr
Issued by
NWS Albany, NY
Flood severity
None

Counties Northwest Hills Planning Region, CT, Greene County, NY, Montgomery County, NY, Schenectady County, NY, Schoharie County, NY, Ulster County, NY

The radar

The Albany radar (KENX), 22 km from the middle of the area, began a volume at 08:04 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.

The nearest sounding before it

Brookhaven, NY (KOKX), launched 00:00Z, 8.0 hours before the alert went out and 197 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, Brookhaven, NY at 00:00Z on 2021-10-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Brookhaven, NY at 00:00Z on 2021-10-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 87 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1336 m above ground
0-6 km bulk shear
71 kt
0-1 km storm-relative helicity
87 m²/s²
0-3 km storm-relative helicity
244 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

433 
WGUS61 KALY 250800
FFAALY

URGENT - IMMEDIATE BROADCAST REQUESTED
Flood Watch
National Weather Service Albany NY
400 AM EDT Mon Oct 25 2021

CTZ001-013-252100-
/O.NEW.KALY.FA.A.0002.211026T0600Z-211028T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Northern Litchfield-Southern Litchfield-
Including the cities of Oakville, New Milford, Thomaston, 
Terryville, Torrington, and Gaylordsville
400 AM EDT Mon Oct 25 2021

...FLOOD WATCH IN EFFECT FROM LATE TONIGHT THROUGH WEDNESDAY 
EVENING...

The National Weather Service in Albany has issued a

* Flood Watch for a portion of northwestern Connecticut, including 
  the following areas, Northern Litchfield and Southern Litchfield.

* From late tonight through Wednesday evening.

* A complex area of low pressure will bring periods of rain, heavy 
  at times, through Wednesday morning. The heaviest rain is expected 
  tonight that will become lighter during the day Tuesday. Then 
  another period of locally heavy rain is expected Tuesday night, 
  tapering off through the day Wednesday. Rain totals through 
  Wednesday are expected to be 1 to 4 inches.

* Heavy rainfall may cause flooding of roads, ponding of water on 
  roadways and standing water in low lying areas.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

You should monitor later forecasts and be alert for possible Flood 
Warnings. Those living in areas prone to flooding should be prepared 
to take action should flooding develop.

&&

$$

NAS
5 follow-up statements
004 
WGUS61 KALY 251923
FFAALY

URGENT - IMMEDIATE BROADCAST REQUESTED
Flood Watch
National Weather Service Albany NY
323 PM EDT Mon Oct 25 2021

NYZ040-047-048-058-063-260330-
/O.EXB.KALY.FA.A.0002.211026T0400Z-211027T1600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Montgomery-Schoharie-Western Schenectady-Western Greene-Western
Ulster-
Including the cities of Livingstonville, Mariaville, West Hurley, 
Woodstock, Middleburgh, Kerhonkson, Jefferson, Gilboa, Duanesburg, 
North Blenheim, Napanoch, Hunter, West Shokan, Delanson, Cobleskill, 
Breakabeen, Windham, Ellenville, Tannersville, Prattsville, Sundown, 
and Amsterdam
323 PM EDT Mon Oct 25 2021

...FLOOD WATCH IN EFFECT FROM MIDNIGHT EDT TONIGHT THROUGH WEDNESDAY 
MORNING...

The National Weather Service in Albany has expanded the

* Flood Watch to include portions of east central New York and 
  eastern New York, including the following areas, in east central 
  New York, Schoharie, Western Greene, Western Schenectady and 
  Western Ulster. In eastern New York, Montgomery.

* From Midnight EDT tonight through Wednesday morning.

* A complex area of low pressure will bring periods of rain, heavy 
  at times, through Tuesday night. The heaviest rain is mainly 
  expected tonight into Tuesday, then becoming lighter by Tuesday 
  evening. The rain will taper off by Wednesday morning. Rainfall 
  totals through Wednesday are expected to be 2 to 5 inches, with 
  the greatest values along east facing slopes of the Catskills.

* Heavy rainfall may cause flooding of roads, ponding of water on 
  roadways and standing water in low lying areas. River flooding is 
  also possible, mainly along tributaries of the Catskill and 
  Schoharie basins.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

You should monitor later forecasts and be alert for possible Flood 
Warnings. Those living in areas prone to flooding should be prepared 
to take action should flooding develop.

&&

$$

CTZ001-013-260330-
/O.CON.KALY.FA.A.0002.211026T0600Z-211028T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Northern Litchfield-Southern Litchfield-
Including the cities of Oakville, New Milford, Thomaston, 
Terryville, Torrington, and Gaylordsville
323 PM EDT Mon Oct 25 2021

...FLOOD WATCH REMAINS IN EFFECT FROM 2 AM EDT TUESDAY THROUGH 
WEDNESDAY EVENING...

The Flood Watch continues for

* A portion of northwestern Connecticut, including the following 
  areas, Northern Litchfield and Southern Litchfield.

* From 2 AM EDT Tuesday through Wednesday evening.

* A complex area of low pressure will bring periods of rain, heavy 
  at times, through Tuesday night. The heaviest rain is mainly 
  expected tonight into Tuesday, then becoming lighter by Tuesday 
  evening. The rain will taper off by Wednesday morning. Rainfall 
  totals through Wednesday are expected to be 1 to 4 inches, with 
  the greatest values along east facing slopes of the southern 
  Berkshires and Litchfield Hills.

* Heavy rainfall may cause flooding of roads, ponding of water on 
  roadways and standing water in low lying areas. River flooding is 
  also possible, mainly along the Housatonic basin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

You should monitor later forecasts and be alert for possible Flood 
Warnings. Those living in areas prone to flooding should be prepared 
to take action should flooding develop.

&&

$$

JPV
478 
WGUS61 KALY 252323
FFAALY

Flood Watch
National Weather Service Albany NY
723 PM EDT Mon Oct 25 2021

NYZ040-047-048-058-063-261000-
/O.CON.KALY.FA.A.0002.211026T0400Z-211027T1600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Montgomery-Schoharie-Western Schenectady-Western Greene-Western
Ulster-
Including the cities of Livingstonville, Mariaville, West Hurley, 
Woodstock, Middleburgh, Kerhonkson, Jefferson, Gilboa, Duanesburg, 
North Blenheim, Napanoch, Hunter, West Shokan, Delanson, Cobleskill, 
Breakabeen, Windham, Ellenville, Tannersville, Prattsville, Sundown, 
and Amsterdam
723 PM EDT Mon Oct 25 2021

...FLOOD WATCH REMAINS IN EFFECT FROM MIDNIGHT EDT TONIGHT THROUGH 
WEDNESDAY MORNING...

The Flood Watch continues for

* Portions of east central New York and eastern New York, including 
  the following areas, in east central New York, Schoharie, Western 
  Greene, Western Schenectady and Western Ulster. In eastern New 
  York, Montgomery.

* From Midnight EDT tonight through Wednesday morning.

* A complex area of low pressure will bring periods of rain, heavy 
  at times, through Tuesday night. The heaviest rain is mainly 
  expected tonight into Tuesday, then becoming lighter by Tuesday 
  evening. The rain will taper off by Wednesday morning. Rainfall 
  totals through Wednesday are expected to be 2 to 5 inches, with 
  the greatest values along east facing slopes of the Catskills.

* Heavy rainfall may cause flooding of roads, ponding of water on 
  roadways and standing water in low lying areas. River flooding is 
  also possible, mainly along tributaries of the Catskill and 
  Schoharie basins.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

You should monitor later forecasts and be alert for possible Flood 
Warnings. Those living in areas prone to flooding should be prepared 
to take action should flooding develop.

&&

$$

CTZ001-013-261000-
/O.CON.KALY.FA.A.0002.211026T0600Z-211028T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Northern Litchfield-Southern Litchfield-
Including the cities of Oakville, New Milford, Thomaston, 
Terryville, Torrington, and Gaylordsville
723 PM EDT Mon Oct 25 2021

...FLOOD WATCH REMAINS IN EFFECT FROM 2 AM EDT TUESDAY THROUGH 
WEDNESDAY EVENING...

The Flood Watch continues for

* A portion of northwestern Connecticut, including the following 
  areas, Northern Litchfield and Southern Litchfield.

* From 2 AM EDT Tuesday through Wednesday evening.

* A complex area of low pressure will bring periods of rain, heavy 
  at times, through Tuesday night. The heaviest rain is mainly 
  expected tonight into Tuesday, then becoming lighter by Tuesday 
  evening. The rain will taper off by Wednesday morning. Rainfall 
  totals through Wednesday are expected to be 1 to 4 inches, with 
  the greatest values along east facing slopes of the southern 
  Berkshires and Litchfield Hills.

* Heavy rainfall may cause flooding of roads, ponding of water on 
  roadways and standing water in low lying areas. River flooding is 
  also possible, mainly along the Housatonic basin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

You should monitor later forecasts and be alert for possible Flood 
Warnings. Those living in areas prone to flooding should be prepared 
to take action should flooding develop.

&&

$$

IAA
196 
WGUS61 KALY 260834
FFAALY

Flood Watch
National Weather Service Albany NY
434 AM EDT Tue Oct 26 2021


NYZ040-047-048-058-063-262100-
/O.CON.KALY.FA.A.0002.000000T0000Z-211027T1600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Montgomery-Schoharie-Western Schenectady-Western Greene-
Western Ulster-
Including the cities of Amsterdam, Cobleskill, Breakabeen, 
Gilboa, Livingstonville, Middleburgh, North Blenheim, Jefferson, 
Mariaville, Delanson, Duanesburg, Hunter, Tannersville, Windham, 
Prattsville, Ellenville, Woodstock, West Hurley, West Shokan, 
Kerhonkson, Napanoch, and Sundown
434 AM EDT Tue Oct 26 2021

...FLOOD WATCH REMAINS IN EFFECT THROUGH WEDNESDAY MORNING...

The Flood Watch continues for

* Portions of east central New York and eastern New York, 
  including the following areas, in east central New York, 
  Schoharie, Western Greene, Western Schenectady, and Western 
  Ulster. In eastern New York, Montgomery. 

* Through Wednesday morning

* A complex area of low pressure will bring periods of rain, heavy
  at times, through tonight. A quarter inch to an inch has already
  fallen in some areas with very localized amounts over 1 inch.
  Additional rain, heavy at times, is expected mainly through 
  this afternoon, then becoming lighter through this evening. The 
  rain will taper off Wednesday morning. Storm total rainfall of 2
  to 5 inches is expected with the highest amounts expected along
  east facing slopes of the Catskills. 

* Heavy rainfall may cause flooding of roads, ponding of water 
  on roadways and standing water in low lying areas. River 
  flooding is also possible, mainly along tributaries of the 
  Catskill and Schoharie basins. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

You should monitor later forecasts and be alert for possible
Flood Warnings. Those living in areas prone to flooding should be
prepared to take action should flooding develop.

&&

$$

CTZ001-013-262100-
/O.CON.KALY.FA.A.0002.000000T0000Z-211028T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Northern Litchfield-Southern Litchfield-
Including the cities of Torrington, Oakville, Gaylordsville, 
New Milford, Terryville, and Thomaston
434 AM EDT Tue Oct 26 2021

...FLOOD WATCH REMAINS IN EFFECT THROUGH WEDNESDAY EVENING...

The Flood Watch continues for

* A portion of northwestern Connecticut, including the following 
  areas, Northern Litchfield and Southern Litchfield. 

* Through Wednesday evening

* A complex area of low pressure will bring periods of rain, heavy
  at times, through tonight. Between an inch and and inch and a
  half of rainfall has already fallen. Additional rain, heavy at
  times, is expected mainly through this afternoon, then becoming
  lighter through this evening. The rain will taper off Wednesday
  morning. Rainfall totals through Wednesday are expected to be 1
  to 4 inches, with the greatest values along east facing slopes 
  of the southern Berkshires and Litchfield Hills. 

* Heavy rainfall may cause flooding of roads, ponding of water 
  on roadways and standing water in low lying areas. River 
  flooding is also possible, mainly along the Housatonic basin. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

You should monitor later forecasts and be alert for possible
Flood Warnings. Those living in areas prone to flooding should be
prepared to take action should flooding develop.

&&

$$
593 
WGUS61 KALY 261912
FFAALY

URGENT - IMMEDIATE BROADCAST REQUESTED
Flood Watch
National Weather Service Albany NY
312 PM EDT Tue Oct 26 2021

NYZ064-270900-
/O.EXA.KALY.FA.A.0002.000000T0000Z-211027T1600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Eastern Ulster-
Including the cities of Kingston and New Paltz
312 PM EDT Tue Oct 26 2021

...FLOOD WATCH IN EFFECT THROUGH WEDNESDAY MORNING...

The National Weather Service in Albany has expanded the

* Flood Watch to include a portion of east central New York, 
  including the following area, Eastern Ulster.

* Through Wednesday morning.

* A complex area of low pressure will continue to bring periods of 
  rain, some heavy at times, through tonight. The rain will taper 
  off  by Wednesday morning. Rainfall totals through Wednesday 
  morning are expected to be 2 to 4 inches.

* Heavy rainfall may cause flooding of roads, ponding of water on 
  roadways and standing water in low lying areas. River flooding is 
  also possible, mainly along the Esopus and Rondout.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

You should monitor later forecasts and be alert for possible Flood 
Warnings. Those living in areas prone to flooding should be prepared 
to take action should flooding develop.

&&

$$

CTZ001-013-270900-
/O.CON.KALY.FA.A.0002.000000T0000Z-211028T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Northern Litchfield-Southern Litchfield-
Including the cities of Oakville, New Milford, Thomaston, 
Terryville, Torrington, and Gaylordsville
312 PM EDT Tue Oct 26 2021

...FLOOD WATCH REMAINS IN EFFECT THROUGH WEDNESDAY EVENING...

The Flood Watch continues for

* A portion of northwestern Connecticut, including the following 
  areas, Northern Litchfield and Southern Litchfield.

* Through Wednesday evening.

* A complex area of low pressure will continue to bring periods of 
  rain, some heavy at times, through tonight. The rain will taper 
  off by Wednesday morning. Rainfall totals through Wednesday are 
  expected to be 1 to 4 inches, with the greatest values along east 
  facing slopes of the southern Berkshires and Litchfield Hills.

* Heavy rainfall may cause flooding of roads, ponding of water on 
  roadways and standing water in low lying areas. River flooding is 
  also possible, mainly along the Housatonic basin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

You should monitor later forecasts and be alert for possible Flood 
Warnings. Those living in areas prone to flooding should be prepared 
to take action should flooding develop.

&&

$$

NYZ040-047-048-058-063-270900-
/O.CON.KALY.FA.A.0002.000000T0000Z-211027T1600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Montgomery-Schoharie-Western Schenectady-Western Greene-Western
Ulster-
Including the cities of Livingstonville, Mariaville, West Hurley, 
Woodstock, Middleburgh, Kerhonkson, Jefferson, Gilboa, Duanesburg, 
North Blenheim, Napanoch, Hunter, West Shokan, Delanson, Cobleskill, 
Breakabeen, Windham, Ellenville, Tannersville, Prattsville, Sundown, 
and Amsterdam
312 PM EDT Tue Oct 26 2021

...FLOOD WATCH REMAINS IN EFFECT THROUGH WEDNESDAY MORNING...

The Flood Watch continues for

* Portions of east central New York and eastern New York, including 
  the following areas, in east central New York, Schoharie, Western 
  Greene, Western Schenectady and Western Ulster. In eastern New 
  York, Montgomery.

* Through Wednesday morning.

* A complex area of low pressure will continue to bring periods of 
  rain, some heavy at times, through tonight. The rain will taper 
  off by Wednesday morning. Rainfall totals through Wednesday 
  morning are expected to be 2 to 5 inches, with the greatest values 
  along east facing slopes of the Catskills.

* Heavy rainfall may cause flooding of roads, ponding of water on 
  roadways and standing water in low lying areas. River flooding is 
  also expected, mainly along tributaries of the Catskill and 
  Schoharie basins.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

You should monitor later forecasts and be alert for possible Flood 
Warnings. Those living in areas prone to flooding should be prepared 
to take action should flooding develop.

&&

$$

JPV
261 
WGUS61 KALY 270729
FFAALY

Flood Watch
National Weather Service Albany NY
329 AM EDT Wed Oct 27 2021

CTZ001-013-270830-
/O.CAN.KALY.FA.A.0002.000000T0000Z-211028T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Northern Litchfield-Southern Litchfield-
Including the cities of Oakville, New Milford, Thomaston, 
Terryville, Torrington, and Gaylordsville
329 AM EDT Wed Oct 27 2021

...FLOOD WATCH IS CANCELLED...

The Flood Watch for a portion of northwestern Connecticut, including 
the following areas, Northern Litchfield and Southern Litchfield has 
been cancelled.

The Flood Watch is cancelled. Rain is very light and will end this 
morning.  No new flooding is expected in addition to the river 
flooding that is currently occurring.  Please continue to heed 
remaining road closures.

$$

NYZ040-047-048-058-063-064-270830-
/O.CAN.KALY.FA.A.0002.000000T0000Z-211027T1600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Montgomery-Schoharie-Western Schenectady-Western Greene-Western
Ulster-Eastern Ulster-
Including the cities of Livingstonville, Mariaville, West Hurley, 
Woodstock, Middleburgh, Kerhonkson, Jefferson, Gilboa, Duanesburg, 
North Blenheim, Napanoch, Hunter, West Shokan, Delanson, Cobleskill, 
Breakabeen, New Paltz, Windham, Ellenville, Tannersville, Kingston, 
Prattsville, Sundown, and Amsterdam
329 AM EDT Wed Oct 27 2021

...FLOOD WATCH IS CANCELLED...

The Flood Watch for portions of east central New York and eastern 
New York, including the following areas, in east central New York, 
Eastern Ulster, Schoharie, Western Greene, Western Schenectady and 
Western Ulster. In eastern New York, Montgomery has been cancelled.

The Flood Watch is cancelled.  Rain is very light and will end this 
morning.  No new flooding is expected in addition to the river 
flooding that is currently occurring.  Please continue to heed 
remaining road closures.

$$

NAS

Nearby

Flood Watches in New York, 2021Flood Watches in Connecticut, 2021Every flood watch in 2021

Sources

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