A low pressure system developing over the area brought rounds of thunderstorms over the area during the evening on October 25th and into the 26th. Thunderstorms dropped 1-3 of rain over a several hour period.
Every event with a place to put it. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS OKX wrote it up.
A low pressure system developing over the area brought rounds of thunderstorms over the area during the evening on October 25th and into the 26th. Thunderstorms dropped 1-3 of rain over a several hour period. The low pressure then allowed for moderate to heavy rain to persist through the morning hours on October 26th. Total rainfall amounts of 2-4 were observed.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS New York, NY wrote its last area forecast discussion before the first event at Oct 25, 10:05 PM EST, 10 minutes earlier.
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</html>Hazardous Weather Outlook National Weather Service New York NY 352 PM EDT Mon Oct 25 2021 CTZ005>007-NJZ002-004-103>108-NYZ067>070-261000- Northern Fairfield-Northern New Haven-Northern Middlesex- Western Passaic-Eastern Passaic-Western Bergen-Eastern Bergen- Western Essex-Eastern Essex-Western Union-Eastern Union-Orange- Putnam-Rockland-Northern Westchester- 352 PM EDT Mon Oct 25 2021 ...FLASH FLOOD WATCH IN EFFECT FROM 8 PM EDT THIS EVENING THROUGH TUESDAY AFTERNOON... This Hazardous Weather Outlook is for southern Connecticut, northeast New Jersey and southeast New York. .DAY ONE...This afternoon and tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flash Flood Watch. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flash Flood Watch. .SPOTTER INFORMATION STATEMENT... Spotter activation according to Standard Operating Procedures is requested and appreciated. && 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. CTZ008-261000- Northern New London- 352 PM EDT Mon Oct 25 2021 ...FLASH FLOOD WATCH IN EFFECT FROM 8 PM EDT THIS EVENING THROUGH TUESDAY AFTERNOON... ...WIND ADVISORY IN EFFECT FROM 2 PM TUESDAY TO 6 AM EDT WEDNESDAY... This Hazardous Weather Outlook is for southern Connecticut. .DAY ONE...This afternoon and tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flash Flood Watch. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flash Flood Watch. Wind Advisory. .SPOTTER INFORMATION STATEMENT... Spotter activation according to Standard Operating Procedures is requested and appreciated. && 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. ANZ331-332-340-345-353-355-261000- 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- Peconic and Gardiners Bays- South Shore Bays from Jones Inlet through Shinnecock Bay- Fire Island Inlet NY to Moriches Inlet NY out 20 nm- Sandy Hook NJ to Fire Island Inlet NY out 20 nm- 352 PM EDT Mon Oct 25 2021 ...GALE WARNING IN EFFECT FROM 8 AM TUESDAY TO 2 PM EDT WEDNESDAY... This Hazardous Weather Outlook is for Atlantic coastal waters. .DAY ONE...This afternoon and tonight. No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Gale Warning. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. && 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. ANZ335-338-261000- Long Island Sound West of New Haven CT/Port Jefferson NY- New York Harbor- 352 PM EDT Mon Oct 25 2021 ...GALE WARNING IN EFFECT FROM 8 AM TUESDAY TO 8 AM EDT WEDNESDAY... This Hazardous Weather Outlook is for Atlantic coastal waters. .DAY ONE...This afternoon and tonight. No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Gale Warning. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. && 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. ANZ350-261000- Moriches Inlet NY to Montauk Point NY out 20 nm- 352 PM EDT Mon Oct 25 2021 ...STORM WARNING IN EFFECT FROM 8 AM TUESDAY TO 2 PM EDT WEDNESDAY... This Hazardous Weather Outlook is for Atlantic coastal waters. .DAY ONE...This afternoon and tonight. No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Storm Warning. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. && 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. CTZ009-010-NJZ006-NYZ071>075-078-080-176>179-261000- Southern Fairfield-Southern New Haven-Hudson-Southern Westchester- New York (Manhattan)-Bronx-Richmond (Staten Island)-Kings (Brooklyn)- Northwest Suffolk-Southwest Suffolk-Northern Queens-Northern Nassau- Southern Queens-Southern Nassau- 352 PM EDT Mon Oct 25 2021 ...FLASH FLOOD WATCH IN EFFECT FROM 8 PM EDT THIS EVENING THROUGH TUESDAY AFTERNOON... This Hazardous Weather Outlook is for southern Connecticut, northeast New Jersey and southeast New York. .DAY ONE...This afternoon and tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flash Flood Watch. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flash Flood Watch. .SPOTTER INFORMATION STATEMENT... Spotter activation according to Standard Operating Procedures is requested and appreciated. && 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. CTZ011-012-NYZ079-081-261000- Southern Middlesex-Southern New London-Northeast Suffolk- Southeast Suffolk- 352 PM EDT Mon Oct 25 2021 ...FLASH FLOOD WATCH IN EFFECT FROM 8 PM EDT THIS EVENING THROUGH TUESDAY AFTERNOON... ...WIND ADVISORY IN EFFECT FROM 2 PM TUESDAY TO 6 AM EDT WEDNESDAY... This Hazardous Weather Outlook is for southern Connecticut and southeast New York. .DAY ONE...This afternoon and tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flash Flood Watch. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flash Flood Watch. Wind Advisory. .SPOTTER INFORMATION STATEMENT... Spotter activation according to Standard Operating Procedures is requested and appreciated. && 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.
Special Weather Statement National Weather Service New York NY 909 PM EDT Mon Oct 25 2021 CTZ009-NJZ002-004-006-103>108-NYZ069>075-176-178-260300- Southern Fairfield-Western Passaic-Eastern Passaic-Hudson- Western Bergen-Eastern Bergen-Western Essex-Eastern Essex- Western Union-Eastern Union-Rockland-Northern Westchester- Southern Westchester-New York (Manhattan)-Bronx- Richmond (Staten Island)-Kings (Brooklyn)-Northern Queens- Southern Queens- 909 PM EDT Mon Oct 25 2021 ...DEVELOPING THUNDERSTORMS... Showers and thunderstorms will continue to develop over the area through 11 pm. Locally heavy rainfall and lightning strikes can be expected. Some of the strongest cells could produce some gusty winds at times. The area remains under a Flash Flood Watch through Tuesday. JMC
Special Weather Statement National Weather Service New York NY 916 PM EDT Mon Oct 25 2021 NYZ067-068-260300- Orange-Putnam- 916 PM EDT Mon Oct 25 2021 ...DEVELOPING THUNDERSTORMS... Showers and thunderstorms will continue to develop from the south through 11 pm. Locally heavy rainfall and lightning strikes can be expected. Some of the strongest cells could produce some gusty winds at times. The area remains under a Flash Flood Watch through Tuesday. JMC
Special Weather Statement
National Weather Service New York NY
1044 PM EDT Mon Oct 25 2021
NYZ067>070-260330-
Putnam NY-Rockland NY-Northern Westchester NY-Orange NY-
1044 PM EDT Mon Oct 25 2021
...A STRONG THUNDERSTORM WILL IMPACT PORTIONS OF ROCKLAND NORTHERN
WESTCHESTER, WESTERN PUTNAM AND EASTERN ORANGE COUNTIES THROUGH 1130
PM EDT...
At 1043 PM EDT, Doppler radar was tracking a strong thunderstorm
over Haverstraw, moving north at 40 mph.
HAZARD...Pea size hail.
SOURCE...Radar indicated.
IMPACT...Minor damage to outdoor objects is possible.
Locations impacted include...
New City, Peekskill, Haverstraw, West Point, Cold Spring, Pomona,
Fahnestock State Park, Stony Point, Putnam Valley, West Haverstraw,
Congers, New Square, Mount Ivy, Wesley Hills and New Hempstead.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Torrential rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.
&&
LAT...LON 4157 7396 4155 7399 4153 7400 4150 7400
4150 7399 4146 7400 4144 7398 4149 7393
4150 7380 4113 7394 4114 7409 4159 7399
4159 7395
TIME...MOT...LOC 0243Z 193DEG 35KT 4122 7399
MAX HAIL SIZE...0.25 IN
MAX WIND GUST...<30 MPH
Goodman<!doctype html>
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</html>The Brookhaven radar (KOKX), 103 km away, was scanning. The volume nearest the first event began at 03:11 UTC.
2 flash flood. Local standard time, as filed.
All lanes were closed on Chestnut Ridge Road due to flooding caused by heavy rain.
Heavy rain caused flooding resulting in 2 lanes being blocked at Exit 21 on the Bronx River Parkway near Route 119 in Hartsdale, NY.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in New York in 2021Every state in 2021This day in weather historyWarnings in New York, October 2021
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 989143, 989144.