Alert archive / New York / Flash Flood Watches in 2018

Flash Flood Watch 2, NWS Albany, NY

July 23, 201812 counties in New York; Northwest Hills Planning Region, Connecticut; Berkshire County, Massachusetts

NWS Albany, NY issued this flash flood watch at Jul 23, 2018, 9:37 AM EDT for 12 counties in New York; Northwest Hills Planning Region, Connecticut; Berkshire County, Massachusetts. It was in force for 66 hr.

The area

The counties it named.

The facts

Issued
Jul 23, 2018, 9:37 AM EDT (13:37 UTC)
Expired
Jul 26, 2018, 3:24 AM EDT
In force
66 hr
Issued by
NWS Albany, NY
Flood severity
None

Counties Northwest Hills Planning Region, CT, Berkshire County, MA, Albany County, NY, Columbia County, NY, Dutchess County, NY, Fulton County, NY, Greene County, NY, Herkimer County, NY, Montgomery County, NY, Rensselaer County, NY, Saratoga County, NY, Schenectady County, NY, Schoharie County, NY, Ulster County, NY

The radar

The Albany radar (KENX), 8 km from the middle of the area, began a volume at 13:40 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

Albany, NY (KALY), launched 12:00Z, 1.6 hours before the alert went out and 21 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 12:00Z on 2018-07-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 497 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 12:00Z on 2018-07-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 181 square meters per square second.193958Sfc1 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
497 J/kg
Mixed-layer CIN
-11 J/kg
Mixed-layer LCL
627 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
181 m²/s²
0-3 km storm-relative helicity
190 m²/s²
Significant tornado parameter
0.4
Supercell composite
3.7

Open this sounding in Storm Lab

The text

As transmitted.

711 
WGUS61 KALY 231337
FFAALY

URGENT - IMMEDIATE BROADCAST REQUESTED
Flood Watch
National Weather Service Albany NY
937 AM EDT Mon Jul 23 2018

NYZ051-058-063-232100-
/O.NEW.KALY.FF.A.0002.180723T1337Z-180723T2100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Western Albany-Western Greene-Western Ulster-
Including the cities of Westerlo, Altamont, Berne, Knox, 
Preston Hollow, Hunter, Tannersville, Windham, Prattsville, 
Ellenville, Woodstock, West Hurley, West Shokan, Kerhonkson, 
Napanoch, and Sundown
937 AM EDT Mon Jul 23 2018

...FLASH FLOOD WATCH IN EFFECT UNTIL 5 PM EDT THIS AFTERNOON...

The National Weather Service in Albany has issued a

* Flash Flood Watch for the eastern Catskills and Helderbergs of 
  east central New York, including the following areas, Western 
  Albany, Western Greene, and Western Ulster. 

* Until 5 PM EDT this afternoon

* Heavy rain showers have produced 3 to 5 inches of rainfall in
  the Watch area this morning. The heavy showers with embedded
  thunderstorms will continue into the afternoon. Additional
  rainfall amounts of 1 to 3 inches are possible in the Watch area
  which may produce flash flooding. Also some small streams may
  flood. 

* Rainfall rates may exceed an inch an hour at times into the
  afternoon which may cause some road washouts.  

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flash Flood Watch means that conditions may develop that lead
to flash flooding. Flash flooding is a very dangerous situation.

You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.

&&

$$

TAW/ROK
11 follow-up statements
048 
WGUS61 KALY 231951
FFAALY

URGENT - IMMEDIATE BROADCAST REQUESTED
Flood Watch
National Weather Service Albany NY
351 PM EDT Mon Jul 23 2018

NYZ047-240900-
/O.EXB.KALY.FF.A.0002.000000T0000Z-180726T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Schoharie-
Including the cities of Cobleskill, Breakabeen, Gilboa, 
Livingstonville, Middleburgh, North Blenheim, and Jefferson
351 PM EDT Mon Jul 23 2018

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

The National Weather Service in Albany has expanded the

* Flash Flood Watch to include a portion of east central New York,
  including the following County, Schoharie. 

* Through Wednesday evening

* Heavy rain showers have produced 1 to 3 inches of rainfall in
  portions of the watch area today. Soils will begin to saturate
  with additional isolated to scattered showers and thunderstorms
  tonight through Wednesday. Additional rainfall from training
  showers and thunderstorms could be several inches which may
  produce flash flooding. The showers and thunderstorms are
  expected to be most numerous on Wednesday. 

* Rainfall rates may exceed an inch an hour at times which may
  cause washouts of roads. Minor flooding may also occur along
  main stem rivers, but flash flooding is possible for small
  streams, creeks, and brooks, as well as in urban areas.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flash Flood Watch means that conditions may develop that lead
to flash flooding. Flash flooding is a very dangerous situation.

You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.

&&

$$

NYZ051-058-063-240900-
/O.EXT.KALY.FF.A.0002.000000T0000Z-180726T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Western Albany-Western Greene-Western Ulster-
Including the cities of Westerlo, Altamont, Berne, Knox, 
Preston Hollow, Hunter, Tannersville, Windham, Prattsville, 
Ellenville, Woodstock, West Hurley, West Shokan, Kerhonkson, 
Napanoch, and Sundown
351 PM EDT Mon Jul 23 2018

...FLASH FLOOD WATCH NOW IN EFFECT THROUGH WEDNESDAY EVENING...

The Flash Flood Watch is now in effect for

* The eastern Catskills and Helderbergs of east central New York,
  including the following areas, Western Albany, Western Greene, 
  and Western Ulster counties. 

* Through Wednesday evening

* Heavy rain showers and embedded thunderstorms have produced 2 to
  6 inches of rainfall in the watch area today. Soils will begin
  to saturate with additional isolated to scattered showers and
  thunderstorms tonight through Wednesday. Additional rainfall
  from training showers and thunderstorms could be several inches
  which may produce flash flooding. The showers and thunderstorms
  are expected to be most numerous on Wednesday. 

* Rainfall rates may exceed an inch an hour at times which may
  cause washouts of roads. Minor flooding may also occur along
  main stem rivers, but flash flooding is possible for small
  streams,creeks and brooks, as well as in urban areas. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flash Flood Watch means that conditions may develop that lead
to flash flooding. Flash flooding is a very dangerous situation.

You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.

&&

$$
816 
WGUS61 KALY 232146
FFAALY

Flood Watch
National Weather Service Albany NY
546 PM EDT Mon Jul 23 2018

NYZ047-051-058-063-241000-
/O.CON.KALY.FF.A.0002.000000T0000Z-180726T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Schoharie-Western Albany-Western Greene-Western Ulster-
Including the cities of Cobleskill, Breakabeen, Gilboa, 
Livingstonville, Middleburgh, North Blenheim, Jefferson, 
Westerlo, Altamont, Berne, Knox, Preston Hollow, Hunter, 
Tannersville, Windham, Prattsville, Ellenville, Woodstock, 
West Hurley, West Shokan, Kerhonkson, Napanoch, and Sundown
546 PM EDT Mon Jul 23 2018

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

The Flash Flood Watch continues for

* The eastern Catskills, Helderbergs, and Schoharie Valley of 
  east central New York, including the following areas, Schoharie,
  Western Albany, Western Greene, and Western Ulster Counties. 

* Through Wednesday evening

* Heavy rain showers have produced 2 to 6 inches of rainfall in 
  portions of the watch area today. Soils will begin to saturate 
  with additional isolated to scattered showers and thunderstorms 
  tonight through Wednesday. Additional rainfall from training 
  showers and thunderstorms could be several inches which may 
  produce flash flooding. The showers and thunderstorms are 
  expected to be most numerous on Wednesday. 

* Rainfall rates may exceed an inch an hour at times which may 
  cause washouts of roads. Minor flooding may also occur along 
  main stem rivers, but flash flooding is possible for small 
  streams, creeks, and brooks, as well as in urban areas. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flash Flood Watch means that conditions may develop that lead
to flash flooding. Flash flooding is a very dangerous situation.

You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.

&&

$$
387 
WGUS61 KALY 240757
FFAALY

Flood Watch
National Weather Service Albany NY
357 AM EDT Tue Jul 24 2018

NYZ047-051-058-063-242200-
/O.CON.KALY.FF.A.0002.000000T0000Z-180726T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Schoharie-Western Albany-Western Greene-Western Ulster-
Including the cities of Cobleskill, Breakabeen, Gilboa, 
Livingstonville, Middleburgh, North Blenheim, Jefferson, 
Westerlo, Altamont, Berne, Knox, Preston Hollow, Hunter, 
Tannersville, Windham, Prattsville, Ellenville, Woodstock, 
West Hurley, West Shokan, Kerhonkson, Napanoch, and Sundown
357 AM EDT Tue Jul 24 2018

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

The Flash Flood Watch continues for

* The eastern Catskills, Helderbergs, and Schoharie Valley of 
  east central New York, including the following areas, Schoharie,
  Western Albany, Western Greene, and Western Ulster Counties. 

* Through Wednesday evening

* Heavy rain showers produced 2 to 6 inches of rainfall in
  portions of the watch area Monday. Soils will begin to saturate
  with additional scattered showers and isolated thunderstorms
  today and tonight, and with more numerous showers and 
  thunderstorms Wednesday. Additional rainfall from training 
  showers and thunderstorms through late Wednesday afternoon could
  be several inches, which may produce flash flooding. This 
  potential will be greatest during Wednesday.

* Rainfall rates may exceed an inch an hour at times which may 
  cause washouts of roads. Minor flooding may also occur along 
  main stem rivers, but flash flooding is possible for small 
  streams, creeks, and brooks, as well as in urban areas. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flash Flood Watch means that conditions may develop that lead
to flash flooding. Flash flooding is a very dangerous situation.

You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.

&&

$$
688 
WGUS61 KALY 241931
FFAALY

URGENT - IMMEDIATE BROADCAST REQUESTED
Flood Watch
National Weather Service Albany NY
331 PM EDT Tue Jul 24 2018

NYZ038>040-048-251000-
/O.EXA.KALY.FF.A.0002.000000T0000Z-180726T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Southern Herkimer-Southern Fulton-Montgomery-Western Schenectady-
Including the cities of Ilion, Herkimer, Little Falls, Mohawk, 
Frankfort, Dolgeville, Gloversville, Johnstown, Amsterdam, 
Mariaville, Delanson, and Duanesburg
331 PM EDT Tue Jul 24 2018

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

The National Weather Service in Albany has expanded the

* Flash Flood Watch to include portions of east central New York, 
  including the Mohawk Valley.

* Through Wednesday evening

* Heavy rain showers produced up to 4 inches of rain since
  Saturday night. Soils will begin to saturate with additional
  scattered showers and isolated thunderstorms tonight, and with 
  more numerous showers and thunderstorms Wednesday. Additional 
  rainfall from training showers and thunderstorms through late 
  Wednesday afternoon could be several inches, which may produce 
  flash flooding. This potential will be greatest during 
  Wednesday. 

* Rainfall rates may exceed an inch an hour at times which may 
  cause washouts of roads. Minor flooding may also occur along 
  main stem rivers, but flash flooding is possible for small 
  streams, creeks, and brooks, as well as in urban areas. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flash Flood Watch means that conditions may develop that lead
to flash flooding. Flash flooding is a very dangerous situation.

You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.

&&

$$

NYZ047-051-058-063-251000-
/O.CON.KALY.FF.A.0002.000000T0000Z-180726T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Schoharie-Western Albany-Western Greene-Western Ulster-
Including the cities of Cobleskill, Breakabeen, Gilboa, 
Livingstonville, Middleburgh, North Blenheim, Jefferson, 
Westerlo, Altamont, Berne, Knox, Preston Hollow, Hunter, 
Tannersville, Windham, Prattsville, Ellenville, Woodstock, 
West Hurley, West Shokan, Kerhonkson, Napanoch, and Sundown
331 PM EDT Tue Jul 24 2018

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

The Flash Flood Watch continues for

* A portion of east central New York, including the following
  areas, eastern Catskills, Schoharie Valley and Helderbergs.

* Through Wednesday evening

* Heavy rain showers produced up to 9 inches of rainfall in watch
  area since Saturday night. Soils will begin to saturate with
  additional scattered showers and isolated thunderstorms 
  tonight, and with more numerous showers and thunderstorms 
  Wednesday. Additional rainfall from training showers and 
  thunderstorms through late Wednesday afternoon could be several 
  inches, which may produce flash flooding. This potential will be
  greatest during Wednesday. 

* Rainfall rates may exceed an inch an hour at times which may 
  cause washouts of roads. Minor flooding may also occur along 
  main stem rivers, but flash flooding is possible for small 
  streams, creeks, and brooks, as well as in urban areas. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flash Flood Watch means that conditions may develop that lead
to flash flooding. Flash flooding is a very dangerous situation.

You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.

&&

$$
564 
WGUS61 KALY 250022
FFAALY

Flood Watch
National Weather Service Albany NY
822 PM EDT Tue Jul 24 2018

NYZ038>040-047-048-051-058-063-251000-
/O.CON.KALY.FF.A.0002.000000T0000Z-180726T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Southern Herkimer-Southern Fulton-Montgomery-Schoharie-
Western Schenectady-Western Albany-Western Greene-Western Ulster-
Including the cities of Ilion, Herkimer, Little Falls, Mohawk, 
Frankfort, Dolgeville, Gloversville, Johnstown, Amsterdam, 
Cobleskill, Breakabeen, Gilboa, Livingstonville, Middleburgh, 
North Blenheim, Jefferson, Mariaville, Delanson, Duanesburg, 
Westerlo, Altamont, Berne, Knox, Preston Hollow, Hunter, 
Tannersville, Windham, Prattsville, Ellenville, Woodstock, 
West Hurley, West Shokan, Kerhonkson, Napanoch, and Sundown
822 PM EDT Tue Jul 24 2018

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

The Flash Flood Watch continues for

* The Mohawk Valley, eastern Catskills, Helderbergs, and 
  Schoharie Valley.

* Through Wednesday evening.

* Much of this area has already received 3 to up 9 inches of
  rainfall since Saturday night. The highest totals have been
  reported in the high terrain of the eastern Catskills mainly
  above 1500 feet. Showers and thunderstorms will become numerous
  Wednesday through Wednesday evening resulting in additional
  rainfall saturating the soils. Several inches of rainfall are
  possible if storms train across the same area which could result
  in flash flooding.
 
* Rainfall rates will exceed an inch an hour at times which could 
  cause washouts of roads. Minor flooding may also occur along 
  main stem rivers, but flash flooding is possible for small 
  streams, creeks, and brooks, as well as in urban areas. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flash Flood Watch means that conditions may develop that lead
to flash flooding. Flash flooding is a very dangerous situation.

You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.

&&

$$
125 
WGUS61 KALY 250735
FFAALY

Flood Watch
National Weather Service Albany NY
335 AM EDT Wed Jul 25 2018

NYZ038>040-047-048-051-058-063-252200-
/O.CON.KALY.FF.A.0002.000000T0000Z-180726T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Southern Herkimer-Southern Fulton-Montgomery-Schoharie-
Western Schenectady-Western Albany-Western Greene-Western Ulster-
Including the cities of Ilion, Herkimer, Little Falls, Mohawk, 
Frankfort, Dolgeville, Gloversville, Johnstown, Amsterdam, 
Cobleskill, Breakabeen, Gilboa, Livingstonville, Middleburgh, 
North Blenheim, Jefferson, Mariaville, Delanson, Duanesburg, 
Westerlo, Altamont, Berne, Knox, Preston Hollow, Hunter, 
Tannersville, Windham, Prattsville, Ellenville, Woodstock, 
West Hurley, West Shokan, Kerhonkson, Napanoch, and Sundown
335 AM EDT Wed Jul 25 2018

...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH THIS EVENING...

The Flash Flood Watch continues for

* The Mohawk Valley, eastern Catskills, Helderbergs, and 
  Schoharie Valley.

* Through this evening

* Much of this area has already received 3 to up to 9 inches of
  rainfall since Saturday night. The highest totals have been
  reported in the high terrain of the eastern Catskills, mainly
  above 1500 feet. Showers and thunderstorms will become
  widespread today through this evening resulting in additional
  rainfall saturating the soils. Several inches of additional
  rainfall are possible if storms train across the same area, 
  which could result in flash flooding. 

* Rainfall rates will exceed an inch an hour at times which 
  could cause washouts of roads. Minor flooding may also occur 
  along main stem rivers, but flash flooding is possible for 
  small streams, creeks, and brooks, as well as in urban areas. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flash Flood Watch means that conditions may develop that lead
to flash flooding. Flash flooding is a very dangerous situation.

You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.

&&

$$
696 
WGUS61 KALY 251814
FFAALY

URGENT - IMMEDIATE BROADCAST REQUESTED
Flood Watch
National Weather Service Albany NY
214 PM EDT Wed Jul 25 2018

NYZ038>040-047-048-051-058-063-260800-
/O.EXT.KALY.FF.A.0002.000000T0000Z-180726T0800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Southern Herkimer-Southern Fulton-Montgomery-Schoharie-
Western Schenectady-Western Albany-Western Greene-Western Ulster-
Including the cities of Ilion, Herkimer, Little Falls, Mohawk, 
Frankfort, Dolgeville, Gloversville, Johnstown, Amsterdam, 
Cobleskill, Breakabeen, Gilboa, Livingstonville, Middleburgh, 
North Blenheim, Jefferson, Mariaville, Delanson, Duanesburg, 
Westerlo, Altamont, Berne, Knox, Preston Hollow, Hunter, 
Tannersville, Windham, Prattsville, Ellenville, Woodstock, 
West Hurley, West Shokan, Kerhonkson, Napanoch, and Sundown
214 PM EDT Wed Jul 25 2018

...FLASH FLOOD WATCH NOW IN EFFECT THROUGH LATE TONIGHT...

The Flash Flood Watch is now in effect for

* The Mohawk Valley, eastern Catskills, Helderbergs, and Schoharie
  Valley.

* Through late tonight

* Showers and thunderstorms will become widespread this afternoon
  through tonight with an average of one to two inches of rainfall
  expected. Locally higher amounts are possible in training
  storms. Soils in portions of the area are nearly saturated from
  recent rainfall, so heavy rainfall could run off and result in
  flash flooding.

* Rainfall rates will exceed an inch an hour at times which 
  could cause washouts of roads. Minor flooding may also occur 
  along main stem rivers, but flash flooding is possible for 
  small streams, creeks, and brooks, as well as in urban areas. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flash Flood Watch means that conditions may develop that lead
to flash flooding. Flash flooding is a very dangerous situation.

You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.

&&

$$
568 
WGUS61 KALY 252302
FFAALY

Flood Watch
National Weather Service Albany NY
702 PM EDT Wed Jul 25 2018

NYZ038>040-047-048-051-058-063-260800-
/O.CON.KALY.FF.A.0002.000000T0000Z-180726T0800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Southern Herkimer-Southern Fulton-Montgomery-Schoharie-
Western Schenectady-Western Albany-Western Greene-Western Ulster-
Including the cities of Ilion, Herkimer, Little Falls, Mohawk, 
Frankfort, Dolgeville, Gloversville, Johnstown, Amsterdam, 
Cobleskill, Breakabeen, Gilboa, Livingstonville, Middleburgh, 
North Blenheim, Jefferson, Mariaville, Delanson, Duanesburg, 
Westerlo, Altamont, Berne, Knox, Preston Hollow, Hunter, 
Tannersville, Windham, Prattsville, Ellenville, Woodstock, 
West Hurley, West Shokan, Kerhonkson, Napanoch, and Sundown
702 PM EDT Wed Jul 25 2018

...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 4 AM EDT THURSDAY...

The Flash Flood Watch continues for

* The Mohawk Valley, eastern Catskills, Helderbergs, and Schoharie
  Valley. 

* Until 4 AM EDT Thursday.

* Showers with locally heavy rainfall along with chances for
  thunderstorms will continue into the overnight hours. Soils in
  portions of the watch area are nearly saturated so heavy 
  rainfall could run off and result in flash flooding. 

* Rainfall rates will exceed an inch an hour at times which 
  could cause washouts of roads. Minor flooding may also occur 
  along main stem rivers, but flash flooding is possible for 
  small streams, creeks, and brooks, as well as in urban areas. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flash Flood Watch means that conditions may develop that lead
to flash flooding. Flash flooding is a very dangerous situation.

You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.

&&

$$
479 
WGUS61 KALY 252316
FFAALY

URGENT - IMMEDIATE BROADCAST REQUESTED
Flood Watch
National Weather Service Albany NY
716 PM EDT Wed Jul 25 2018


CTZ001-013-MAZ001-025-NYZ049-050-052>054-059>061-064>066-260730-
/O.EXA.KALY.FF.A.0002.000000T0000Z-180726T0800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Northern Litchfield-Southern Litchfield-Northern Berkshire-
Southern Berkshire-Eastern Schenectady-Southern Saratoga-
Eastern Albany-Western Rensselaer-Eastern Rensselaer-
Eastern Greene-Western Columbia-Eastern Columbia-Eastern Ulster-
Western Dutchess-Eastern Dutchess-
Including the cities of Torrington, Oakville, Gaylordsville, 
New Milford, Terryville, Thomaston, Dalton, Hancock, Pittsfield, 
Florida, North Adams, Sandisfield, Great Barrington, 
South Egremont, Schenectady, Rotterdam, Burnt Hills, 
Ballston Spa, Mechanicville, Clifton Park, Waterford, Albany, 
Troy, Berlin, Eagle Bridge, Hoosick Falls, Stephentown, Catskill,
Coxsackie, Athens, Cairo, Jefferson Heights, Hudson, New Lebanon,
Kingston, New Paltz, Poughkeepsie, Beacon, Arlington, Pawling, 
Wingdale, Dover Plains, Millbrook, Stanfordville, Pine Plains, 
and Amenia
716 PM EDT Wed Jul 25 2018

...FLASH FLOOD WATCH IN EFFECT UNTIL 4 AM EDT THURSDAY...

The National Weather Service in Albany has expanded the

* Flash Flood Watch to include the Berkshires, northwestern
  Connecticut and in east central New York Albany, Columbia,
  Dutchess, Eastern Greene, Rensselaer, Eastern Schenectady,
  Eastern Ulster and Southern Saratoga counties. 

* Until 4 AM EDT Thursday

* Showers with locally heavy rainfall along with chances for
  thunderstorms will continue into the overnight hours. Run off
  from heavy rainfall with rates exceeding an inch an hour at
  times could result in flash flooding of small streams, creeks,
  and brooks, as well as in urban areas and possibly road 
  washouts.
  
* Minor flooding may also occur along main stem rivers. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flash Flood Watch means that conditions may develop that lead
to flash flooding. Flash flooding is a very dangerous situation.

You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.

&&

$$

NYZ038>040-047-048-051-058-063-260730-
/O.CON.KALY.FF.A.0002.000000T0000Z-180726T0800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Southern Herkimer-Southern Fulton-Montgomery-Schoharie-
Western Schenectady-Western Albany-Western Greene-Western Ulster-
Including the cities of Ilion, Herkimer, Little Falls, Mohawk, 
Frankfort, Dolgeville, Gloversville, Johnstown, Amsterdam, 
Cobleskill, Breakabeen, Gilboa, Livingstonville, Middleburgh, 
North Blenheim, Jefferson, Mariaville, Delanson, Duanesburg, 
Westerlo, Altamont, Berne, Knox, Preston Hollow, Hunter, 
Tannersville, Windham, Prattsville, Ellenville, Woodstock, 
West Hurley, West Shokan, Kerhonkson, Napanoch, and Sundown
716 PM EDT Wed Jul 25 2018

...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 4 AM EDT THURSDAY...

The Flash Flood Watch continues for

* The Mohawk Valley, eastern Catskills, Helderbergs, and Schoharie
  Valley.

* Until 4 AM EDT Thursday

* Showers with locally heavy rainfall along with chances for 
  thunderstorms will continue into the overnight hours. Soils in 
  portions of the watch area are nearly saturated so heavy 
  rainfall could run off and result in flash flooding. 

* Rainfall rates will exceed an inch an hour at times which 
  could cause washouts of roads. Minor flooding may also occur 
  along main stem rivers, but flash flooding is possible for 
  small streams, creeks, and brooks, as well as in urban areas. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flash Flood Watch means that conditions may develop that lead
to flash flooding. Flash flooding is a very dangerous situation.

You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.

&&

$$
851 
WGUS61 KALY 260330
FFAALY

Flood Watch
National Weather Service Albany NY
1130 PM EDT Wed Jul 25 2018

CTZ001-013-MAZ001-025-NYZ038>040-047>054-058>061-063>066-260800-
/O.CON.KALY.FF.A.0002.000000T0000Z-180726T0800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Northern Litchfield-Southern Litchfield-Northern Berkshire-
Southern Berkshire-Southern Herkimer-Southern Fulton-Montgomery-
Schoharie-Western Schenectady-Eastern Schenectady-
Southern Saratoga-Western Albany-Eastern Albany-
Western Rensselaer-Eastern Rensselaer-Western Greene-
Eastern Greene-Western Columbia-Eastern Columbia-Western Ulster-
Eastern Ulster-Western Dutchess-Eastern Dutchess-
Including the cities of Torrington, Oakville, Gaylordsville, 
New Milford, Terryville, Thomaston, Dalton, Hancock, Pittsfield, 
Florida, North Adams, Sandisfield, Great Barrington, 
South Egremont, Ilion, Herkimer, Little Falls, Mohawk, Frankfort,
Dolgeville, Gloversville, Johnstown, Amsterdam, Cobleskill, 
Breakabeen, Gilboa, Livingstonville, Middleburgh, North Blenheim,
Jefferson, Mariaville, Delanson, Duanesburg, Schenectady, 
Rotterdam, Burnt Hills, Ballston Spa, Mechanicville, 
Clifton Park, Waterford, Westerlo, Altamont, Berne, Knox, 
Preston Hollow, Albany, Troy, Berlin, Eagle Bridge, 
Hoosick Falls, Stephentown, Hunter, Tannersville, Windham, 
Prattsville, Catskill, Coxsackie, Athens, Cairo, 
Jefferson Heights, Hudson, New Lebanon, Ellenville, Woodstock, 
West Hurley, West Shokan, Kerhonkson, Napanoch, Sundown, 
Kingston, New Paltz, Poughkeepsie, Beacon, Arlington, Pawling, 
Wingdale, Dover Plains, Millbrook, Stanfordville, Pine Plains, 
and Amenia
1130 PM EDT Wed Jul 25 2018

...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 4 AM EDT THURSDAY...

The Flash Flood Watch continues for

* The Mohawk Valley, Schoharie Valley, Helderbergs, eastern 
  Catskills, Capital District, mid Hudson Valley, the Taconics, 
  the Berkshires and northwestern Connecticut.

* Until 4 AM EDT Thursday

* Showers with locally heavy rainfall will continue into the
  overnight hours. Run off from heavy rainfall with rates
  exceeding an inch an hour at times could result in flash
  flooding of small streams, creeks, and brooks, as well as in
  urban areas especially low lying and poor drainage areas. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flash Flood Watch means that conditions may develop that lead
to flash flooding. Flash flooding is a very dangerous situation.

You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.

&&

$$
173 
WGUS61 KALY 260724
FFAALY

Flood Watch
National Weather Service Albany NY
324 AM EDT Thu Jul 26 2018


CTZ001-013-MAZ001-025-NYZ038>040-047>054-058>061-063>066-260830-
/O.CAN.KALY.FF.A.0002.000000T0000Z-180726T0800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Northern Litchfield-Southern Litchfield-Northern Berkshire-
Southern Berkshire-Southern Herkimer-Southern Fulton-Montgomery-
Schoharie-Western Schenectady-Eastern Schenectady-
Southern Saratoga-Western Albany-Eastern Albany-
Western Rensselaer-Eastern Rensselaer-Western Greene-
Eastern Greene-Western Columbia-Eastern Columbia-Western Ulster-
Eastern Ulster-Western Dutchess-Eastern Dutchess-
Including the cities of Torrington, Oakville, Gaylordsville, 
New Milford, Terryville, Thomaston, Dalton, Hancock, Pittsfield, 
Florida, North Adams, Sandisfield, Great Barrington, 
South Egremont, Ilion, Herkimer, Little Falls, Mohawk, Frankfort,
Dolgeville, Gloversville, Johnstown, Amsterdam, Cobleskill, 
Breakabeen, Gilboa, Livingstonville, Middleburgh, North Blenheim,
Jefferson, Mariaville, Delanson, Duanesburg, Schenectady, 
Rotterdam, Burnt Hills, Ballston Spa, Mechanicville, 
Clifton Park, Waterford, Westerlo, Altamont, Berne, Knox, 
Preston Hollow, Albany, Troy, Berlin, Eagle Bridge, 
Hoosick Falls, Stephentown, Hunter, Tannersville, Windham, 
Prattsville, Catskill, Coxsackie, Athens, Cairo, 
Jefferson Heights, Hudson, New Lebanon, Ellenville, Woodstock, 
West Hurley, West Shokan, Kerhonkson, Napanoch, Sundown, 
Kingston, New Paltz, Poughkeepsie, Beacon, Arlington, Pawling, 
Wingdale, Dover Plains, Millbrook, Stanfordville, Pine Plains, 
and Amenia
324 AM EDT Thu Jul 26 2018

...FLASH FLOOD WATCH IS CANCELLED...

The Flash Flood Watch for portions of northwestern Connecticut,
western Massachusetts, and New York has been cancelled. Heavy rain
has ended but areas of light rain and scattered showers are
expected through this morning.

$$

What forecasters said that day

The local office's own words before this flash flood watch 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 watch went out at Jul 23, 7:32 AM EDT, 2 hours 5 minutes earlier.

Area forecast discussion, Jul 23, 7:32 AM EDT, 2 hours 5 minutes before
Area Forecast Discussion
National Weather Service Albany NY
732 AM EDT Mon Jul 23 2018

.SYNOPSIS...
A tropical air mass will remain in place through at least
Wednesday, as a frontal system remains west of the region,
while high pressure remains anchored across the north Atlantic
Ocean into New England. Weak disturbances tracking northward
will bring some showers and thunderstorms through midweek, with
the greater coverage expected today, and then again Wednesday.
The frontal boundary should move east of the region Thursday,
bringing some relief from the oppressive humidity levels.

&&

.NEAR TERM /UNTIL 6 PM THIS EVENING/...
As of 615 AM EDT, main band of moderate to heavy rain remains
across the southeast Catskills into the eastern Mohawk Valley
and southwest Saratoga County, and continues to drift
north/northwest. Additional downpours, a bit more scattered in
coverage, continue across the Capital Region east into southern
VT/western MA, and south through the mid Hudson Valley and NW
CT.

For today, the combination of persistent low level convergence,
and upper level shortwave energy tracking northward across
central PA/NY should allow for numerous showers and isolated
thunderstorms to continue through much of the day. Areal
coverage should become greatest near and just west of the Hudson
River through the morning, as the low level convergence shifts
westward. With PWAT's remaining near 2 inches, as well as wind
direction from the south/southeast through a deep depth of the
lower atmosphere, locally heavy rainfall with some training
potential remains possible through today. Most models suggest
500-1000 J/kg of MUCAPE for this afternoon, although higher
values of 1000-2000 J/kg are possible in any areas which receive
breaks of sun, which may be across the western Mohawk Valley
and southwest Adirondacks later this morning. Will keep mention
of isolated thunderstorms through the day, with heavy rainfall
being the main attribute accompanying any storms. Deep layer
shear will remain 25-30 KT, so should any embedded deeper
convection form, it could briefly organize enough for some
isolated gusty winds. Temperatures should reach the upper 70s to
lower 80s, although could be locally warmer if any prolonged
breaks of sun develop. Dewpoints will remain in the lower 70s
for most lower elevations, thus remaining quite muggy through
the day.

&&

.SHORT TERM /6 PM THIS EVENING THROUGH WEDNESDAY NIGHT/...
Tonight, the best low level forcing should continue shifting
westward, and with the loss of diurnal heating and lack of
significant forcing mechanism, expect showers/isolated
thunderstorms to decrease in coverage shortly after sunset.
Otherwise, warm and humid with lows in the mid 60s to lower
70s.

For Tuesday, models suggest the best forcing and associated deep
moisture plume should shift west into central/western NYS, as
strong upper level ridging from the North Atlantic builds
westward into New England. Will scale back Pops into the
isolated Hudson River Valley, with scattered coverage to the
west and east. Thunder potential looks very low, esp from the
Hudson Valley east, as mid level warming occurs with the brief
impingement of the upper level ridge. With some breaks of sun
expected, afternoon higher temperatures should reach the
mid/upper 80s in lower elevations, with mid 70s to lower 80s
across higher terrain, and perhaps portions of the western
Mohawk Valley where more clouds may remain prevalent.

Tuesday night-Wednesday night, upper level height falls
overspread the region from west to east, as the frontal system
and associated deep tropical plume also move eastward. PWAT's
surge to around or over 2 inches, combined with forcing with the
approach of the remnant upper level trough. Showers and embedded
thunderstorms should increase from west to east late Tuesday
night, and become widespread Wednesday through Wednesday night,
with the potential for several slow moving bands of heavy
rain/embedded thunderstorms occurring. The latest WPC Day 3 Excessive
Rain Outlook (for 12Z/Wed-12Z/Thu) has the entire region
(eastern NY/western New England) within a Slight Risk for
Excessive Rainfall, with a Moderate Risk for portions of the
eastern Catskills and extreme western Mohawk Valley. Flash
flooding will be possible, especially should any convective
elements train over any one particular area during this time. It
will remain warm and humid, with lows mainly in the mid
60s/lower 70s, and highs generally mid 70s to around 80, limited
by extensive cloud cover and rain.

&&

.LONG TERM /THURSDAY THROUGH SUNDAY/...
The northern stream piece of the remnants of the upper energy and
associated upper trough axis currently extending from the Great
Lakes south to the Gulf Coast pushes east of our region through the
day Thursday. Mid level drying spreads east across our region but as
it does, scattered showers and thunderstorms will develop ahead of
the leading edge of the midlevel drying.  There will likely be only
limited drying at the surface with the weakening upper energy and
still some semblance of a broad upper trough over our region. There
should be some periods of sun Thursday outside of the scattered
showers and thunderstorms. Highs Thursday solidly in the 80s but
some mid 70s to around 80 in higher terrain.

Stronger upper energy approaches from southern Canada and just north
of the Great Lakes by Friday and Saturday.  A better defined cold
front is expected to track through the region sometime either Friday
or Friday night.  The low level forcing and instability ahead of the
front will support more scattered showers and storms.  There is some
disagreement in sources of guidance as the exact timing of the cold
front.  So, keeping scattered showers and storms through Friday night
and isolated showers and storms Saturday.

Highs Friday well into the 80s except mid 70s to around 80 higher
terrain.  Highs Saturday a couple of degrees cooler then on Friday.
There is loose agreement on another upper system approaching our
region from the west by Sunday, which would continue the chances for
isolated showers and storms. Highs Sunday in the upper 70s to lower
80s but a few mid 80s southern areas and lower to mid 70s higher
terrain.

&&

.AVIATION /12Z MONDAY THROUGH FRIDAY/...
Fetch of deep moisture streaming from south to north will persist
through tonight. Areas of showers and isolated thunderstorms will
track north through the region through tonight. Current area of
showers on radar will affect all TAF sites this morning but there
are breaks in the clouds and some VFR ceilings and visibilities
outside of the showers. Indicating MVFR ceilings and visibilities in
the showers.

Once these showers exit, there should be a period of less coverage
late this morning to early afternoon, perhaps 16Z-18Z. Any
development of new showers and isolated thunderstorms this afternoon
should increase in coverage, so including a period of TEMPO between
18Z-22Z when the best chances for the rain should be.  The all day
and night coverage of showers and isolated thunderstorms suggests
keeping VCSH at all TAF sites during the entire TAF period ending
12Z Tuesday. Once thunderstorms develop, they can be tracked and
specific timing of VFR/IFR conditions and thunder can be added.
Coverage of rain should decrease to scattered tonight but MVFR
ceilings should dominate.  Not including any TEMPO for MVFR
visibilities since rain coverage should again, be more scattered.

Southeast winds today at around 10 Kt developing through this
morning with possible gusts to near 20 Kt at KALB. Southeast winds
continuing through this afternoon, the decreasing to less than 10 Kt
tonight.

Outlook...

Tuesday Night: High Operational Impact. Likely SHRA...TSRA.
Wednesday: High Operational Impact. Likely SHRA...TSRA.
Wednesday Night: High Operational Impact. Definite SHRA...TSRA.
Thursday: Moderate Operational Impact. Scattered SHRA...TSRA.
Thursday Night: Low Operational Impact. Isolated SHRA...TSRA.
Friday: Moderate Operational Impact. Scattered SHRA...TSRA.

&&

.FIRE WEATHER...
A tropical air mass will remain in place through at least
Wednesday, as a frontal system remains west of the region,
while high pressure remains anchored across the north Atlantic
Ocean into New England. Weak disturbances tracking northward
will bring some showers and thunderstorms through midweek, with
the greater coverage expected today, and then again Wednesday.
The frontal boundary should move east of the region Thursday,
bringing some relief from the oppressive humidity levels.

The RH values will lower 65 to 85 percent this afternoon,
then rise to 90 to 100 percent late tonight.

The winds will be south to southeast at 10 to 20 mph today, and
only diminish to 5 to 15 mph tonight.

Locally heavy rainfall is possible today into the mid week, with
the most widespread rainfall expected Wednesday and Wednesday
night.

&&

.HYDROLOGY...
Unsettled weather impacts the Hydro Service Area /HSA/ through
most of the week.

A slow moving cold front approaching from the west, along with
several weak disturbances moving northward within a very moist
airmass in place, will lead to scattered showers and isolated
thunderstorms, some with locally heavy downpours for today.
Rainfall amounts will greatly vary from a tenth to a half an
inch in some spots with localized one inch or greater amounts
especially, south the Capital Region, and near the eastern
Catskills.

The front may stay far enough west due to high pressure
building in from the western Atlantic Ocean for the better
coverage of showers and thunderstorms being west of the Hudson
River Valley Tuesday.

A potential will exist for training showers/thunderstorms that
would result poor drainage flooding or an isolated flash flood
if heavy rainfall repeatedly occurs over the same areas of the
HSA Monday to Thursday time fame, with the best potential
Wednesday into Wednesday night as the frontal boundary slowly
approaches from the west and moves across the region.

The ALY HSA river and stream levels are below normal and our
recent dry conditions are noted in the latest drought monitor
with D0-D1 levels. However, intense rainfall rates and repeated
locations getting large amounts of rainfall over the next 3 or 4
days will need to be monitored.

A drier air mass will likely build in toward the weekend.

For details on specific area rivers and lakes, including observed
and forecast river stages and lake elevations, please visit the
Advanced Hydrologic Prediction Service /AHPS/ graphs on our
website.

&&

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

&&

SYNOPSIS...KL/Wasula
NEAR TERM...KL
SHORT TERM...KL
LONG TERM...NAS
AVIATION...OKeefe/NAS
FIRE WEATHER...KL/Wasula
HYDROLOGY...KL/Wasula
Hazardous weather outlook, Jul 23, 4:51 AM EDT, 4 hours 46 minutes before
Hazardous Weather Outlook
National Weather Service Albany NY
451 AM EDT Mon Jul 23 2018

CTZ001-013-MAZ001-025-NYZ032-033-038>043-047>054-058>061-063>066-
082>084-VTZ013>015-241100-
Northern Litchfield-Southern Litchfield-Northern Berkshire-
Southern Berkshire-Northern Herkimer-Hamilton-Southern Herkimer-
Southern Fulton-Montgomery-Northern Saratoga-Northern Warren-
Northern Washington-Schoharie-Western Schenectady-
Eastern Schenectady-Southern Saratoga-Western Albany-Eastern Albany-
Western Rensselaer-Eastern Rensselaer-Western Greene-Eastern Greene-
Western Columbia-Eastern Columbia-Western Ulster-Eastern Ulster-
Western Dutchess-Eastern Dutchess-Northern Fulton-Southeast Warren-
Southern Washington-Bennington-Western Windham-Eastern Windham-
451 AM EDT Mon Jul 23 2018

This Hazardous Weather Outlook is for northwestern Connecticut,
western Massachusetts, east central and eastern New York, and
southern Vermont.

.DAY ONE...Today and Tonight.

Isolated thunderstorms with locally heavy rainfall will be possible
through this evening, which may cause ponding of water on roadways
and poor drainage flooding in low lying and urban areas for a few
spots. Isolated flash flooding is possible, especially in any areas
where multiple rounds of thunderstorms occur.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

Isolated thunderstorms will remain possible Tuesday, especially
across the western Mohawk Valley and southwest Adirondacks.
Thunderstorms may contain locally heavy rainfall, with a very humid
air mass remaining in place.

There is a better chance of thunderstorms Wednesday through
Wednesday night as a cold front slowly moves through the region. Some
of the thunderstorms will contain very heavy rainfall which may
cause small stream, urban and poor drainage flooding. Flash flooding
will be possible.

There is also a chance of thunderstorms on Friday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 23, 5:47 AM EDTAreal Flood AdvisoryALYGreene, Ulster3 hr
Jul 23, 9:29 AM EDTAreal Flood AdvisoryALYAlbany, Greene, Schoharie, Ulster4 hr
Jul 23, 10:19 AM EDTAreal Flood AdvisoryALYAlbany, Montgomery, Schenectady, Schoharie3 hr
Jul 23, 10:44 AM EDTAreal Flood AdvisoryALYAlbany, Columbia, Greene, Rensselaer, Schenectady2 hr
Jul 23, 11:01 AM EDTAreal Flood AdvisoryALYAlbany, Fulton, Hamilton, Saratoga, Schenectady3 hr
Jul 23, 11:49 AM EDTSpecial Weather StatementALYSaratoga41 min
Jul 23, 12:01 PM EDTAreal Flood AdvisoryALYUlster70 min
Jul 23, 12:44 PM EDTAreal Flood AdvisoryALYSaratoga, Warren, Washington2 hr
Jul 23, 1:25 PM EDTAreal Flood AdvisoryALYAlbany, Fulton, Montgomery, Schenectady, Schoharie3 hr
Jul 23, 1:34 PM EDTSpecial Weather StatementALYSaratoga26 min
Jul 22, 11:50 PM EDTSpecial Weather StatementALY55 min

Nearby

Flash Flood Watches in New York, 2018Flash Flood Watches in Connecticut, 2018Flash Flood Watches in Massachusetts, 2018Every flash flood watch in 2018

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.