A cold front moved slowly across the area during the afternoon and evening hours, sparking scattered thunderstorms that resulted in isolated flash flooding across Orange County. One spotter in the Highland Mills area reported over one inch of rain in 30 minutes, with over 2 inches falling in the span of 45 minutes.
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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 cold front moved slowly across the area during the afternoon and evening hours, sparking scattered thunderstorms that resulted in isolated flash flooding across Orange County. One spotter in the Highland Mills area reported over one inch of rain in 30 minutes, with over 2 inches falling in the span of 45 minutes.
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 Jun 13, 5:56 PM EST, 48 minutes earlier.
Area Forecast Discussion National Weather Service New York NY 656 PM EDT Tue Jun 13 2017 .SYNOPSIS... A cold front will pass offshore overnight. High pressure will build into the area on Wednesday. The high will shift offshore Thursday night through Friday night as a warm front approaches from the southwest. The warm front is expected to move north of the area during Saturday as low pressure tracks north of the Great Lakes and Bermuda high pressure extends westward into the region. A cold front approaches from the west Monday and passes across the area Tuesday. && .NEAR TERM /UNTIL 6 AM WEDNESDAY MORNING/... SCT TSTMs, a few severe, will cont to advect SE across the local area through the evening hours as surface based instability begins to decrease with the approach of and following sunset. Most storms will produce gusty winds and lightning. Isolated hail is possible as well. Additional SCT TSTMs over NCNTRL PA may survive the trip SE as well. Rain will end from N to S overnight as the cold front sags swd. The heat advy will remain in effect for nern NJ for the next few hours, until heat index values fall below 95 degrees. && .SHORT TERM /6 AM WEDNESDAY MORNING THROUGH WEDNESDAY NIGHT/... High pres builds in from the n thru Wed ngt. This will allow for clearing thru the day on Wed, with only high clouds for the aftn and nighttime. A blend of guidance, which was in good agreement, was used for temps which will be considerably cooler. && .LONG TERM /THURSDAY THROUGH TUESDAY/... Prepare for periods of unsettled weather Friday through Monday. Thursday...As a ridge of high pressure moves offshore, SE winds will transport maritime polar air across the area, causing below holding normal temps from near 65 extreme east to 75 west of NYC. Thursday Night through Early Saturday...Isentropic lift will increase as a warm front approaches along with an upper lvl short wave. Mainly light rain becoming likely area wide along with fog by Friday and continuing until the front passes Sat aftn. Uncertainty with timing of warm frontal passage from SW to NE during Saturday. Daytime highs on Friday only 65 to around 70 degrees; Warmer Saturday. Sat Aftn/Eve...Chc of showers and tstms, mainly W and N of NYC with daytime heating and increasing instability as the air mass transitions to a deep maritime tropical airmass. Sunday...Can't rule out at least SCT aftn/eve TSTMs as a deepening upper lvl trough approaches. Monday...Potential for more widespread hvy showers and tstms as a cold front approaches the region with high precipitable water content. Stay tuned. && .AVIATION /00Z WEDNESDAY THROUGH SUNDAY/... A cold front pushes to the S this evening, followed by Canadian high pressure building down into Wednesday afternoon. Most likely VFR through the TAF period. There is a low chance of a brief period (less than 30 minutes) of MVFR/IFR with any stronger shower or thunderstorm that moves over a terminal. The best chance for thunder this is over western terminals, have removed the VCTS from E CT/Long Island terminals as a result. Any convection should be clear of all terminals by 4z. Note that TAFs now contain VCTS as PROB30 is not permissible within 9 hours of issuance in NWS TAFs. SW-W winds with some gusts of 15-20 kt mainly at city terminals, become light and variable early this evening, then veer from the NW to NE at around 10 kt or less tonight, with non-city terminals becoming light and variable. NE winds around 10 kt or less at all terminals by mid Wednesday morning, with seabreezes expected at CT/Long Island terminals, KJFK and KEWR Wednesday afternoon. NY Metro Enhanced Aviation Weather Support... Detailed information, including hourly TAF wind component forecasts, can be found at: http:/www.weather.gov/zny/n90 KJFK TAF Comments: Timing in changes in wind speed and direction could be off +/- 1-2 hours. Low chance < 30% for convection in the terminal vicinity this evening. KLGA TAF Comments: Timing in changes in wind speed and direction could be off +/- 1-2 hours. Low chance < 30% for convection in the terminal vicinity this evening. KEWR TAF Comments: Timing in changes in wind speed and direction could be off +/- 1-2 hours. Low chance < 30% for convection in the terminal vicinity. KTEB TAF Comments: Timing in changes in wind speed and direction could be off +/- 1-2 hours. Low chance < 30% for convection in the terminal vicinity this evening. KHPN TAF Comments: Timing in changes in wind speed and direction could be off +/- 1-2 hours. Low chance < 30% for convection in the terminal vicinity this evening. KISP TAF Comments: Timing in changes in wind speed and direction could be off +/- 1-2 hours. Low chance < 30% for convection in the terminal vicinity this evening. .OUTLOOK FOR 18Z WEDNESDAY THROUGH SUNDAY... .Wednesday afternoon-Thursday...VFR. .Thursday night-Saturday Morning...MVFR/IFR probable. .Saturday Afternoon...Improvement to VFR possible, with a chance of isolated to scattered showers and/or thunderstorms. .Saturday Night...IFR conditions possible. .Sunday...Improvement to VFR possible, with a chance of isolated to scattered showers and/or thunderstorms. && .MARINE... Winds and seas will remain blw Small Craft Advisory/SCA lvls thru Wed ngt. Strong tstms are possible with the cold frontal passage late today and tngt which could produce winds in excess of 35 kt. With high pressure shifting off shore Thursday and Thursday night, winds and seas will remain below SCA levels. Friday through Saturday...Although winds and seas are forecast to remain below SCA levels, periods of rain and areas of fog may restrict vsbys to 1-3 NM. Dense Fog Advisories are possible during this time until a warm front moves northeast of the area late Saturday. Sunday...SSW winds and building seas of arnd 4 ft on the ocean with the approach of SCA levels. && .HYDROLOGY... Any strong tstms thru this eve could produce localized urban and poor drainage flooding. No significant hydrologic impacts are expected Wednesday through next Sunday. Late Thursday Night thru Early Sat...1/4-1/2 inch rain possible with the approach and passage of a warm front. Potential for heavy rain on Monday with approach of a cold front. && .CLIMATE... Record high temperatures may be tied or broken today. Here are the records for the date: LOCATION.....RECORD HIGH TEMPERATURE........ NYC.................96 (1961).............. LGA.................97 (1961)...............broken see RER JFK.................95 (1983)............... EWR.................98 (1961)...............broken see RER ISP.................92 (1988)...............broken see RER BDR.................93*(1961)............... * Also in previous years && .OKX WATCHES/WARNINGS/ADVISORIES... CT...None. NY...None. NJ...Heat Advisory until 10 PM EDT this evening for NJZ006-106-108. MARINE...None. && SYNOPSIS...JMC/MET NEAR TERM...JMC/GC SHORT TERM...JMC LONG TERM...GC AVIATION...Maloit/Tongue MARINE...JMC/GC HYDROLOGY...JMC/GC CLIMATE...
Hazardous Weather Outlook National Weather Service New York NY 435 AM EDT Tue Jun 13 2017 CTZ005>012-NJZ002-004-103>105-107-NYZ067>075-078>081-176>179-140845- Northern Fairfield-Northern New Haven-Northern Middlesex- Northern New London-Southern Fairfield-Southern New Haven- Southern Middlesex-Southern New London-Western Passaic- Eastern Passaic-Western Bergen-Eastern Bergen-Western Essex- Western Union-Orange-Putnam-Rockland-Northern Westchester- Southern Westchester-New York (Manhattan)-Bronx- Richmond (Staten Island)-Kings (Brooklyn)-Northwestern Suffolk- Northeastern Suffolk-Southwestern Suffolk-Southeastern Suffolk- Northern Queens-Northern Nassau-Southern Queens-Southern Nassau- 435 AM EDT Tue Jun 13 2017 This Hazardous Weather Outlook is for southern Connecticut, northeast New Jersey and southeast New York. .DAY ONE...Today and Tonight. Scattered thunderstorms are forecast for this afternoon and evening in association with a cold frontal passage. A few storms may become strong, possibly severe, with strong to damaging winds being the primary threat. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. No hazardous weather is expected at this time that would meet National Weather Service warning criteria. .SPOTTER INFORMATION STATEMENT... Spotter activation may be needed. && 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. NJZ006-106-108-140845- Hudson-Eastern Essex-Eastern Union- 435 AM EDT Tue Jun 13 2017 ...HEAT ADVISORY IN EFFECT UNTIL 10 PM EDT THIS EVENING... This Hazardous Weather Outlook is for northeast New Jersey. .DAY ONE...Today and Tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Heat Advisory. In addition, scattered thunderstorms are forecast for this afternoon and evening in association with a cold frontal passage. A few storms may become strong, possibly severe, with strong to damaging winds being the primary threat. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. No hazardous weather is expected at this time that would meet National Weather Service warning criteria. .SPOTTER INFORMATION STATEMENT... Spotter activation may be needed. && 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. ANZ330-335-338-340-345-350-353-355-140845- Long Island Sound East of New Haven CT/Port Jefferson NY- 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- Moriches Inlet NY to Montauk Point NY out 20 nm- Fire Island Inlet NY to Moriches Inlet NY out 20 nm- Sandy Hook NJ to Fire Island Inlet NY out 20 nm- 435 AM EDT Tue Jun 13 2017 This Hazardous Weather Outlook is for Atlantic coastal waters. .DAY ONE...Today and Tonight. Scattered thunderstorms are forecast for this afternoon and evening in association with a cold frontal passage. A few storms may become strong, with winds in excess of 35 KT being the primary threat. No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. No hazardous weather is expected at this time that would meet National Weather Service warning criteria. .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.
Special Weather Statement National Weather Service New York NY 603 PM EDT TUE JUN 13 2017 CTZ008-132245- Northern New London- 603 PM EDT TUE JUN 13 2017 ...A STRONG THUNDERSTORM WILL AFFECT NORTHEASTERN NEW LONDON COUNTY... At 601 PM EDT, a series of strong thunderstorms were located over Windham County, moving southeast at 25 mph. Winds in excess of 40 mph and pea size hail are possible with these storm. This storm will be near... Voluntown around 605 PM EDT. Cloud to ground lightning is occurring with this storm. Lightning can strike 10 miles away from a thunderstorm. Seek a safe shelter inside a building or vehicle. LAT...LON 4154 7179 4164 7192 4164 7179 TIME...MOT...LOC 2201Z 304DEG 22KT 4168 7187 NV
Special Weather Statement
National Weather Service New York NY
617 PM EDT TUE JUN 13 2017
CTZ005-NJZ103-NYZ067>070-132300-
Northern Fairfield-Western Bergen-Putnam-Rockland-Northern
Westchester-Orange-
617 PM EDT TUE JUN 13 2017
...A LINE OF STRONG THUNDERSTORMS WILL AFFECT CENTRAL FAIRFIELD...
WESTCHESTER...SOUTHEASTERN ORANGE...PUTNAM AND ROCKLAND COUNTIES...
At 616 PM EDT, radar indicated strong thunderstorms were located
along a line extending from near New Fairfield to near Monroe.
Movement was southeast at 15 mph.
Winds in excess of 40 mph and pea size hail are possible with these
storms.
These storms will be near...
Lake Carmel and New Fairfield around 620 PM EDT.
Brewster around 625 PM EDT.
Danbury around 630 PM EDT.
Bethel around 640 PM EDT.
New City and Monsey around 700 PM EDT.
Cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
LAT...LON 4124 7327 4120 7348 4121 7348 4119 7354
4106 7418 4139 7431 4145 7400 4144 7398
4146 7396 4152 7364 4153 7353
TIME...MOT...LOC 2216Z 331DEG 13KT 4147 7355 4136 7418
NVSpecial Weather Statement
National Weather Service New York NY
727 PM EDT TUE JUN 13 2017
NYZ067-140015-
Orange-
727 PM EDT TUE JUN 13 2017
...A STRONG THUNDERSTORM WILL AFFECT EAST CENTRAL ORANGE COUNTY...
At 726 PM EDT, a strong thunderstorm was located over Greenwood Lake,
or near Warwick, moving southeast at 15 mph.
Wind gusts up to 50 mph and nickel size hail are possible with this
storm.
This storm will be near...
Monroe around 735 PM EDT.
Harriman around 745 PM EDT.
Torrential rainfall is also occurring with this storm, and may cause
localized flooding. Do not drive your vehicle through flooded
roadways.
Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
LAT...LON 4136 7396 4135 7396 4133 7398 4126 7407
4134 7423 4143 7415
TIME...MOT...LOC 2326Z 299DEG 13KT 4126 7428
NVPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NEW YORK NY
730 PM EDT TUE JUN 13 2017
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0655 PM HAIL MONROE 41.32N 74.19W
06/13/2017 M0.88 INCH ORANGE NY TRAINED SPOTTER
NICKEL SIZE HAIL MONROE TO SOUTH BLOOMING GROVE
&&
GCPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NEW YORK NY
732 PM EDT TUE JUN 13 2017
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0708 PM HAIL MONROE 41.32N 74.19W
06/13/2017 M1.00 INCH ORANGE NY TRAINED SPOTTER
DIME TO QUARTER SIZE HAIL MEASURED FROM MONROE TO SOUTH
BLOOMING GROVE
&&
GCPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NEW YORK NY
737 PM EDT TUE JUN 13 2017
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0700 PM TSTM WND DMG KIRYAS JOEL 41.34N 74.17W
06/13/2017 ORANGE NY LAW ENFORCEMENT
NUMEROUS TREES DOWN ACROSS TOWN.
&&
JPThe Brookhaven radar (KOKX), 120 km away, was scanning. The volume nearest the first event began at 23:45 UTC.
1 flash flood. Local standard time, as filed.
Lent Drive and Schunnemunk Road at Ridge Road were closed due to flooding in Highland Mills.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in New York in 2017Every state in 2017This day in weather historyWarnings in New York, June 2017
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: 706848.