Flash Flood Warning
Flash Flood Warning
NYC103-010130-
/O.EXT.KOKX.FF.W.0020.000000T0000Z-250801T0130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service New York NY
817 PM EDT Thu Jul 31 2025
The National Weather Service in Upton has extended the
* Flash Flood Warning for...
Western Suffolk County in southeastern New York...
* Until 930 PM EDT.
* At 817 PM EDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 2 and 4 inches of rain
have fallen. Additional rainfall amounts of 0.5 to 1 inch are
possible in the warned area. Flash flooding is ongoing.
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...
Medford, Ronkonkoma, Patchogue, Holbrook, Sayville, Yaphank, East
Patchogue, Holtsville, North Bellport, Bohemia, Bayport, North
Patchogue, West Sayville and Blue Point.
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 4082 7315 4086 7287 4083 7284 4074 7298
4074 7300 4073 7301 4071 7305 4072 7311
4076 7314
FLASH FLOOD...RADAR INDICATED
$$
MW
Small Craft Advisory
URGENT - MARINE WEATHER MESSAGE
National Weather Service Boston/Norton MA
229 PM EDT Thu Jul 31 2025
ANZ231>233-235-237-010800-
/O.EXT.KBOX.SC.Y.0082.250801T0000Z-250802T0600Z/
Cape Cod Bay-Nantucket Sound-Vineyard Sound-Rhode Island Sound-
Block Island Sound-
229 PM EDT Thu Jul 31 2025
...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 8 PM THIS EVENING TO
2 AM EDT SATURDAY...
* WHAT...Northeast winds 15 to 25 kt with gusts up to 30 kt and
seas 2 to 4 feet expected.
* WHERE...In Massachusetts coastal waters, Cape Cod Bay,
Nantucket Sound and Vineyard Sound. In Rhode Island coastal
waters, Rhode Island Sound and Block Island Sound.
* WHEN...From 8 PM this evening to 2 AM EDT Saturday.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Boston/Norton MA
229 PM EDT Thu Jul 31 2025
ANZ234-010800-
/O.EXB.KBOX.SC.Y.0082.250801T0000Z-250802T0600Z/
Buzzards Bay-
229 PM EDT Thu Jul 31 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 8 PM THIS EVENING TO 2 AM
EDT SATURDAY...
* WHAT...Northeast winds 15 to 20 kt with gusts up to 30 kt and
seas 2 to 4 feet expected.
* WHERE...Buzzards Bay.
* WHEN...From 8 PM this evening to 2 AM EDT Saturday.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Boston/Norton MA
229 PM EDT Thu Jul 31 2025
ANZ236-010800-
/O.EXB.KBOX.SC.Y.0082.250801T0600Z-250802T0000Z/
Narragansett Bay-
229 PM EDT Thu Jul 31 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 2 AM TO 8 PM EDT FRIDAY...
* WHAT...Northeast winds 15 to 20 kt with gusts up to 25 kt and
waves 2 to 3 feet expected.
* WHERE...Narragansett Bay.
* WHEN...From 2 AM to 8 PM EDT Friday.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Boston/Norton MA
229 PM EDT Thu Jul 31 2025
ANZ250-254-010800-
/O.EXT.KBOX.SC.Y.0082.250801T0000Z-250802T1200Z/
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
229 PM EDT Thu Jul 31 2025
...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 8 PM THIS EVENING TO
8 AM EDT SATURDAY...
* WHAT...Northeast winds 15 to 20 kt with gusts up to 30 kt and
seas 3 to 5 feet expected.
* WHERE...Coastal waters east of Ipswich Bay and the Stellwagen
Bank National Marine Sanctuary and Coastal waters from
Provincetown MA to Chatham MA to Nantucket MA out 20 nm.
* WHEN...From 8 PM this evening to 8 AM EDT Saturday.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Boston/Norton MA
229 PM EDT Thu Jul 31 2025
ANZ251-010800-
/O.EXB.KBOX.SC.Y.0082.250801T0600Z-250802T0000Z/
Massachusetts Bay and Ipswich Bay-
229 PM EDT Thu Jul 31 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 2 AM TO 8 PM EDT FRIDAY...
* WHAT...Northeast winds 10 to 20 kt with gusts up to 25 kt and
seas 2 to 4 feet expected.
* WHERE...Massachusetts Bay and Ipswich Bay.
* WHEN...From 2 AM to 8 PM EDT Friday.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Boston/Norton MA
229 PM EDT Thu Jul 31 2025
ANZ255-256-010800-
/O.EXT.KBOX.SC.Y.0082.250801T0000Z-250802T1200Z/
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
229 PM EDT Thu Jul 31 2025
...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 8 PM THIS EVENING TO
8 AM EDT SATURDAY...
* WHAT...Northeast winds 15 to 25 kt with gusts up to 30 kt and
seas 4 to 6 feet expected.
* WHERE...In Massachusetts coastal waters, Coastal Waters
extending out to 25 nm South of Marthas Vineyard and
Nantucket. In Rhode Island coastal waters, Coastal Waters from
Montauk NY to Marthas Vineyard extending out to 20 nm South of
Block Island.
* WHEN...From 8 PM this evening to 8 AM EDT Saturday.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service New York NY
219 PM EDT Thu Jul 31 2025
ANZ331-332-335-338-340-345-011000-
/O.CON.KOKX.SC.Y.0075.250801T0000Z-250802T0000Z/
Long Island Sound East of New Haven CT/Port Jefferson NY to the
Mouth of the Connecticut River-
Long Island Sound East of the Mouth of the Connecticut River-
Long Island Sound West of New Haven CT/Port Jefferson NY-
New York Harbor-Peconic and Gardiners Bays-
South Shore Bays from Jones Inlet through Shinnecock Bay-
219 PM EDT Thu Jul 31 2025
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 8 PM THIS EVENING
TO 8 PM EDT FRIDAY...
* WHAT...Northeast winds 10 to 20 kt with gusts up to 25 kt and
seas 2 to 4 feet expected.
* WHERE...Long Island Sound, New York Harbor, Peconic and
Gardiners Bays, and South Shore Bays from Jones Inlet through
Shinnecock Bay.
* WHEN...From 8 PM this evening to 8 PM EDT Friday.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
For more details, see the Coastal Waters Forecast from
National Weather Service New York NY, or visit
https://www.weather.gov/okx/marine
Flood Watch
Flood Watch
National Weather Service New York NY
214 PM EDT Thu Jul 31 2025
CTZ005-009-NJZ002-004-006-103>108-NYZ067>075-176>179-011200-
/O.CON.KOKX.FA.A.0005.000000T0000Z-250801T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Northern Fairfield-Southern Fairfield-Western Passaic-Eastern
Passaic-Hudson-Western Bergen-Eastern Bergen-Western Essex-
Eastern Essex-Western Union-Eastern Union-Orange-Putnam-Rockland-
Northern Westchester-Southern Westchester-New York (Manhattan)-
Bronx-Richmond (Staten Island)-Kings (Brooklyn)-Northern Queens-
Northern Nassau-Southern Queens-Southern Nassau-
214 PM EDT Thu Jul 31 2025
...FLOOD WATCH REMAINS IN EFFECT THROUGH FRIDAY MORNING...
* WHAT...Flooding caused by excessive rainfall continues to be
possible.
* WHERE...Portions of southern Connecticut, including the following
areas, Northern Fairfield and Southern Fairfield, northeast New
Jersey, including the following areas, Eastern Bergen, Eastern
Essex, Eastern Passaic, Eastern Union, Hudson, Western Bergen,
Western Essex, Western Passaic and Western Union, and southeast
New York, including the following areas, Bronx, Kings (Brooklyn),
New York (Manhattan), Northern Nassau, Northern Queens, Northern
Westchester, Orange, Putnam, Richmond (Staten Island), Rockland,
Southern Nassau, Southern Queens and Southern Westchester.
* WHEN...Through Friday morning.
* IMPACTS...Scattered to numerous instances of urban, poor drainage
and riverine flash flooding are possible. Localized severe
flooding may cause an elevated threat to life and property,
particularly Thursday afternoon and Thursday night.
* ADDITIONAL DETAILS...
- A widespread 1.5 to 3 inches of rain is likely, with
localized amounts up to 5 inches. Rainfall rates could exceed
2+ inches per hour, especially for areas south.
- http://www.weather.gov/safety/flood
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.
&&
$$
Flood Watch
National Weather Service New York NY
214 PM EDT Thu Jul 31 2025
CTZ006>008-010>012-NYZ078>081-011200-
/O.CON.KOKX.FA.A.0005.000000T0000Z-250801T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Northern New Haven-Northern Middlesex-Northern New London-
Southern New Haven-Southern Middlesex-Southern New London-
Northwest Suffolk-Northeast Suffolk-Southwest Suffolk-Southeast
Suffolk-
214 PM EDT Thu Jul 31 2025
...FLOOD WATCH REMAINS IN EFFECT THROUGH FRIDAY MORNING...
* WHAT...Flooding caused by excessive rainfall continues to be
possible.
* WHERE...Portions of southern Connecticut, including the following
areas, Northern Middlesex, Northern New Haven, Northern New
London, Southern Middlesex, Southern New Haven and Southern New
London and southeast New York, including the following areas,
Northeast Suffolk, Northwest Suffolk, Southeast Suffolk and
Southwest Suffolk.
* WHEN...Through Friday morning.
* IMPACTS...Scattered to numerous instances of urban, poor drainage
and riverine flash flooding are possible. Localized severe
flooding may cause an elevated threat to life and property,
particularly Thursday afternoon and Thursday night.
* ADDITIONAL DETAILS...
- A widespread 1.5 to 3 inches of rain is likely, with
localized amounts up to 5 inches. Rainfall rates could exceed
2+ inches per hour, especially for areas south.
- http://www.weather.gov/safety/flood
PRECAUTIONARY/PREPAREDNESS ACTIONS...
You should monitor later forecasts and be alert for possible Flood
Warnings. Those living in areas prone to flooding should be prepared
to take action should flooding develop.
&&
$$
FEB
Flood Watch
National Weather Service Boston/Norton MA
107 PM EDT Thu Jul 31 2025
CTZ002>004-010830-
/O.CON.KBOX.FA.A.0007.250731T1800Z-250801T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Hartford CT-Tolland CT-Windham CT-
Including the cities of Union, Vernon, Putnam, Hartford,
Willimantic, and Windsor Locks
107 PM EDT Thu Jul 31 2025
...FLOOD WATCH REMAINS IN EFFECT THROUGH FRIDAY MORNING...
* WHAT...Flooding caused by excessive rainfall continues to be
possible.
* WHERE...A portion of northern Connecticut, including the following
areas, Hartford CT, Tolland CT and Windham CT.
* WHEN...Through Friday morning.
* IMPACTS...Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.
* ADDITIONAL DETAILS...
- Rain, heavy at times will result in rainfall totals of 2 to 4
inches along with localized flooding.
- http://www.weather.gov/safety/flood
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.
&&
$$
Flood Watch
National Weather Service Albany NY
1127 AM EDT Thu Jul 31 2025
CTZ001-013-NYZ063>066-011200-
/O.CON.KALY.FA.A.0008.250731T1800Z-250801T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Northern Litchfield-Southern Litchfield-Western Ulster-Eastern
Ulster-Western Dutchess-Eastern Dutchess-
Including the cities of West Shokan, Woodstock, Poughkeepsie,
Amenia, New Paltz, Wingdale, Sundown, Arlington, Oakville,
Ellenville, Kerhonkson, Millbrook, Pine Plains, Beacon, West
Hurley, Thomaston, Gaylordsville, Pawling, Napanoch, Torrington,
New Milford, Terryville, Kingston, Dover Plains, and
Stanfordville
1127 AM EDT Thu Jul 31 2025
...FLOOD WATCH REMAINS IN EFFECT THROUGH FRIDAY MORNING...
* WHAT...Flooding caused by excessive rainfall continues to be
possible.
* WHERE...Portions of northwestern Connecticut, including the
following areas, Northern Litchfield and Southern Litchfield and
east central New York, including the following areas, Eastern
Dutchess, Eastern Ulster, Western Dutchess and Western Ulster.
* WHEN...Through Friday morning.
* IMPACTS...Excessive runoff from heavy rain may result in flooding
of rivers, creeks, streams, and other low-lying and flood-prone
locations. Flooding may occur in poor drainage and urban areas.
* ADDITIONAL DETAILS...
- Widespread rainfall this afternoon into tonight with periods
of heavy rain including rainfall rates up to 1 to 2 inches
per hour at times. Total rainfall amounts between 1.50 and 3
inches are expected with locally higher amounts up to 3 to 4
inches should heavy rain persist over a given area.
- http://www.weather.gov/safety/flood
PRECAUTIONARY/PREPAREDNESS ACTIONS...
You should monitor later forecasts and be alert for possible Flood
Warnings. Those living in areas prone to flooding should be prepared
to take action should flooding develop.
&&
$$
CS
Air Quality Alert
CTZ002>004-010300-
Hartford CT-Tolland CT-Windham CT-
Including the cities of Hartford, Windsor Locks, Union, Vernon,
Putnam, and Willimantic
317 AM EDT Thu Jul 31 2025
...AIR QUALITY ALERT IN EFFECT FROM 11 AM THIS MORNING TO 11 PM EDT
THIS EVENING...
The Connecticut Department of Environmental Protection has issued an
Air Quality Action Day for Fine Particulates, from 11 AM this
morning to 11 PM EDT this evening.
An Air Quality Action day means that Fine Particulates
concentrations within the region may approach or exceed unhealthy
standards. For additional information, please visit the Connecticut
Department of Energy and Environmental Protection website at:
https://portal.ct.gov/deep
$$
For the latest updates...please visit our webpage at
www.weather.gov/boston
You can follow us on Facebook at
www.facebook.com/NWSBoston
You can follow us on Twitter at
@NWSBoston
CTZ005>012-010300-
Northern Fairfield-Northern New Haven-Northern Middlesex-
Northern New London-Southern Fairfield-Southern New Haven-
Southern Middlesex-Southern New London-
1128 PM EDT Wed Jul 30 2025
...AIR QUALITY ALERT IN EFFECT FROM 11 AM TO 11 PM EDT THURSDAY...
The Connecticut Department of Energy and Environmental Protection
has issued an Air Quality Action Day for the following counties:
Fairfield, New Haven, Middlesex, New London
from 11 AM to 11 PM EDT Thursday.
An Air Quality Action Day means that Fine Particulates within the
region may approach or exceed unhealthy standards. For additional
information, please visit the Connecticut Department of Energy and
Environmental Protection Web site at http://www.ct.gov/deep/aqi
$$
CTZ001-013-010315-
Northern Litchfield-Southern Litchfield-
Including the cities of Torrington, Oakville, Gaylordsville,
New Milford, Terryville, and Thomaston
1110 PM EDT Wed Jul 30 2025
...AIR QUALITY ALERT IN EFFECT FROM 11 AM TO 11 PM EDT THURSDAY...
The Connecticut Department of Environmental Protection has issued a
Air Quality Action Day for Fine Particulates...from 11 AM to 11 PM
EDT Thursday.
An Air Quality Action Day means that Fine Particulates
concentrations within the region may approach or exceed unhealthy
standards. For additional information...please visit the Connecticut
Air Quality Web site at http://www.ct.gov/deep/aqi
$$
Hazardous Weather Outlook
Hazardous Weather Outlook
National Weather Service New York NY
551 PM EDT Thu Jul 31 2025
CTZ005>012-NJZ002-004-006-103>108-NYZ067>075-078>080-176>179-012200-
Northern Fairfield-Northern New Haven-Northern Middlesex-
Northern New London-Southern Fairfield-Southern New Haven-
Southern Middlesex-Southern New London-Western Passaic-
Eastern Passaic-Hudson-Western Bergen-Eastern Bergen-Western Essex-
Eastern Essex-Western Union-Eastern Union-Orange-Putnam-Rockland-
Northern Westchester-Southern Westchester-New York (Manhattan)-Bronx-
Richmond (Staten Island)-Kings (Brooklyn)-Northwest Suffolk-
Northeast Suffolk-Southwest Suffolk-Northern Queens-Northern Nassau-
Southern Queens-Southern Nassau-
551 PM EDT Thu Jul 31 2025
...FLOOD WATCH REMAINS IN EFFECT THROUGH FRIDAY MORNING...
...FLOOD WATCH REMAINS IN EFFECT THROUGH FRIDAY MORNING...
This Hazardous Weather Outlook is for southern Connecticut,
northeast New Jersey and southeast New York.
.DAY ONE...Tonight.
Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.
Flood Watch.
.DAYS TWO THROUGH SEVEN...Friday through Wednesday.
Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.
Flood Watch.
.SPOTTER INFORMATION STATEMENT...
Weather spotters are encouraged to report significant weather
conditions according to Standard Operating Procedures.
&&
This Hazardous Weather Outlook provides a summary of potential
widespread hazardous weather events that may reach NWS warning
criteria. Most long fused NWS watches, warnings, and advisories in
effect are highlighted.
Please refer to the latest NWS forecasts for weather not meeting NWS
warning criteria.
$$
