Two separate broken lines of strong to severe thunderstorms developed during the afternoon of July 6th over eastern New York ahead of a cold front and prefrontal trough. The storms resulted in isolated reports of wind damage.
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 ALY wrote it up.
Two separate broken lines of strong to severe thunderstorms developed during the afternoon of July 6th over eastern New York ahead of a cold front and prefrontal trough. The storms resulted in isolated reports of wind damage. The damage was mainly to trees, but there was also a metal shed destroyed. Nearly 6,000 customers lost power in Ulster and Dutchess Counties.
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 Albany, NY wrote its last area forecast discussion before the first event at Jul 6, 12:51 PM EST, 6 minutes earlier.
AREA FORECAST DISCUSSION National Weather Service Albany NY 151 PM EDT Sat Jul 6 2019 .SYNOPSIS... Hot and humid conditions will continue this afternoon. A cold front will approach bringing the increase threat for showers and thunderstorms, some of which will contain heavy rainfall this afternoon into early this evening. It will turn much less humid with seasonable temperatures on Sunday into early next week behind this front. && .NEAR TERM /THROUGH TONIGHT/... As of 135 PM EDT...A humid and oppressive air mass will be over the region this with sfc dewpts in the upper 60s to lower 70s over the region. Prefrontal lines of showers and thunderstorms continue to form from the Capital Region and Berkshires north and west. The PWAT was 1.90" on the KALY soundings, as well as WFO OKX. WFO BUF upstream was 2.02", so we are looking at PWATS +2 to +3 STD DEVS above normal based on the GEFS. So some enhanced hourly rainfall rates of 1-2"/hr are possible. The steering flow is a bit stronger for a widespread flash flood threat. Observational data shows over the models, west to southwest winds in the 700-500 hPa layer of 20-25 kts, so any convection should be moving along, and there is a small risk of training. Our thinking remains the same and isolated flash flooding is possible. Antecedent conditions are dry and 1-,3-,6-hr gridded FFG values are high. The severe threat is contingent on maximizing CAPE, pcpn loading, and a few wet microbursts forming. Mid-level lapse rates are poor. DCAPE values per the latest SPC RAP Mesoanalysis are 500 J/kg or less, but MLCAPE values around approaching the 1000-2000 J/kg range due to the high dewpts. 0-6 km bulk shear is 20-25 kts, so loosely organized convection is possible organizing into a line or two with some gusty or borderline damaging winds. FQT lighting was added to the forecast grids with any thunderstorms. We will monitor for an isolated severe threat. Hail does not look like a threat due to freezing levels around 15 kft AGL, weak lapse rates and taller and skinny sounding profiles. PoPs and weather retooled considerably to fit the present KENX radar and surrounding radars between noon and 2 pm. Main impact timeframe will be 130 pm to 8 pm from northwest to southeast across the region. Max temps will be in the mid/upper 80s in the valleys with a few isolated 90s. Expect upper 70s to lower/mid 80s over the higher terrain. Some spotty 95F heat indices are possible in the Capital District south to the mid Hudson Valley, but we are not issuing a heat advisory due to the small coverage area, as we are just scraping the bottom edge of the criteria. An SPS was issued to cover this threat. The main cold frontal passage is expected tonight between 03Z- 06Z/Sun, with the line of convection also exiting the region much earlier than that. So we will continue with the decreasing PoPs from north-northwest to the southeast though the evening hours. A notable drop in the dewpoints is expected with partially clearing skies as overnight lows will range from the mid and upper 50s across the Dacks to near 70F for the mid- Hudson Valley and NW CT where fropa will be last to clear. && .SHORT TERM /SUNDAY THROUGH TUESDAY/... Sunday, Clouds may be slow to clear for those areas south of I90, otherwise, expect temperatures to be back near normal with dewpoints back down into the 50s as high pressure to the north and west continues to influence the weather. Mainly clear and tranquil Sunday night into the day Monday as 1020mb surface high slides in from the west-northwest. Fair and cool conditions are expected Monday night. && .LONG TERM /TUESDAY NIGHT THROUGH FRIDAY/... High pressure at the surface with ridging building aloft will bring mostly clear skies for Tuesday and Wednesday. Temperatures will start out near normal for Tuesday, but warm slightly under the influence of the upper level ridge for Wednesday. Humidity levels will be fairly comfortable both days, although Tuesday gets the nod as the drier day. A short wave trough riding the northern border will approach the region on Thursday and cross over the area on Friday. Chances for showers and thunderstorms increase to likely levels on Thursday, pulling back to the chance category for Friday. With clouds, showers, and cooler temperatures about, temperatures both days will edge back to near normal. Some indications that precipitable water values could increase to about one standard deviation above normal with the passage of the trough. So some heavier showers/thunderstorms possible, mainly creating minor ponding issues. From the vantage point of one week out, next Saturday looks dry with weak high pressure building in. && .AVIATION /18Z SATURDAY THROUGH THURSDAY/... Showers and some thunderstorms have developed this afternoon at or near all terminals. While the main driver focus for thunderstorm activity is across northern NY as a cold front sags south, high humidity and warm temperatures combined with small- scale features have created favorable conditions for thunderstorms at all terminals now. While no TSRA's are forecast as prevailing, they are forecast in TEMPO groups. Timing of these iniial storm is somewhat difficult given the small scale nature of the triggers. The cold front offers a more coherent focus for thundestorm development. For the most part, through the TEMPO mechanism IFR TSRA are forecast at all terminals through about 00Z. For the remainder of the evening drier air will filter in alleviating the threat of any BR/FG development after the rain. VFR conditions prevail through Sunday. Outlook... Sunday through Wednesday: No Operational Impact. NO SIG WX. Wednesday Night: Moderate Operational Impact. Chance of SHRA. Thursday: High Operational Impact. Likely SHRA...TSRA. && .FIRE WEATHER... Numerous to widespread showers and thunderstorms are expected on today, especially in the afternoon and evening hours. It will continue to be very warm and humid into this evening. Much drier air will arrive for Sunday into the middle of next week. Temperatures will return to closer to seasonal normal values. Minimum RH values in the 60 to 80 percent range will be common today, then 80 to 100 percent tonight, a further reduction is expected Sunday with RH values between 30 and 50 percent. Light northerly winds are expected on Sunday, becoming light and variable on Monday. && .HYDROLOGY... An approaching cold front this afternoon will interact with a very moist airmass characterized by PWAT values around 2 inches. Numerous to widespread showers and thunderstorms will develop along the cold front and also potentially along a prefrontal trough. Coverage will be most widespread in the afternoon to evening. There is a threat for urban and poor-drainage flooding as well as isolated flash flooding if multiple rounds of convection occur in a given spot. Basin average QPF of 0.50 to 1.00 inches is possible with locally higher amounts up to 2.50 inches possible. The flash flooding threat will be lessened by the dry antecedent conditions. A period of dry weather is likely Sunday through Wednesday. && .ALY WATCHES/WARNINGS/ADVISORIES... CT...None. NY...None. MA...None. VT...None. && SYNOPSIS...BGM/Wasula NEAR TERM...BGM/Wasula SHORT TERM...BGM LONG TERM...OKeefe AVIATION...OKeefe FIRE WEATHER...BGM/Thompson HYDROLOGY...BGM/Thompson
Hazardous Weather Outlook National Weather Service Albany NY 350 AM EDT Sat Jul 6 2019 CTZ001-013-MAZ001-025-NYZ032-033-038>043-047>054-058>061-063>066- 082>084-VTZ013>015-071100- 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- 350 AM EDT Sat Jul 6 2019 This Hazardous Weather Outlook is for northwestern Connecticut, western Massachusetts, east central New York and southern Vermont. .DAY ONE...Today and Tonight. The combination of hot temperatures and increasing humidity levels may produce dangerous heat conditions with heat indices into the low to mid 90s in portions of the Capital District and mid Hudson Valley today. If confidence increases in heat indices of 95F or greater, then heat advisories will need to be issued. In addition, showers and thunderstorms are expected to become numerous to widespread areawide today, especially in the afternoon and evening. Heavy downpours are likely in any thunderstorm, which could result in urban and poor drainage flooding. Isolated flash flooding is possible if multiple rounds of thunderstorms occur over a given area. There is also a marginal risk for severe weather with the main threat being isolated damaging winds. .DAYS TWO THROUGH SEVEN...Sunday through Friday. There is a chance of thunderstorms on Thursday. .SPOTTER INFORMATION STATEMENT... Spotter activation may be needed today.
Special Weather Statement National Weather Service Albany NY 1120 AM EDT Sat Jul 6 2019 NYZ049-050-052-053-059-060-064-065-062100- Eastern Schenectady-Southern Saratoga-Eastern Albany- Western Rensselaer-Eastern Greene-Western Columbia-Eastern Ulster- Western Dutchess- Including the cities of Schenectady, Rotterdam, Burnt Hills, Ballston Spa, Mechanicville, Clifton Park, Waterford, Albany, Troy, Catskill, Coxsackie, Athens, Cairo, Jefferson Heights, Hudson, Kingston, New Paltz, Poughkeepsie, Beacon, and Arlington 1120 AM EDT Sat Jul 6 2019 ...HEAT INDEX VALUES MAX BRIEFLY HIT THE MID 90S THIS AFTERNOON... The combination of the high temperatures and high humidity levels will create spotty dangerous heat conditions. Heat indices may briefly hit the mid 90s in the Capital District southward into the mid Hudson Valley. Heat indices will lower into the upper 80s to lower 90s in the mid to late afternoon, as showers and thunderstorms bring slightly cooler conditions. Drink plenty of fluids, stay in an air-conditioned room, and avoid extended time in the sun or heat. Take extra precautions if you work or spend time outside. When possible,reschedule strenuous activities to early morning or evening hours. TAW
Special Weather Statement
National Weather Service Albany NY
1136 AM EDT Sat Jul 6 2019
NYZ033-061600-
Hamilton-
1136 AM EDT Sat Jul 6 2019
...A STRONG THUNDERSTORM WILL AFFECT NORTH CENTRAL HAMILTON COUNTY...
At 1135 AM EDT, a strong thunderstorm was located over Lake Eaton
Campground, or 17 miles south of Tupper Lake, moving northeast at 25
mph.
Winds around 40 mph are possible with this storm.
Locations impacted include...
Blue Mountain Lake, Forked Lake Public Campground, Lake Eaton
Campground, Long Lake, Eagle Nest, Little Tupper Lake, Catlin Lake
and Deerland.
Torrential rainfall is also occurring with this storm, and may cause
localized poor drainage flooding. Do not drive your vehicle through
flooded roadways.
A quick inch of rainfall is possible in a few locations.
Occasional 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 4412 7428 4397 7425 4392 7434 4392 7433
4379 7452 4401 7466 4410 7452
TIME...MOT...LOC 1535Z 235DEG 20KT 4399 7451
WasulaSpecial Weather Statement
National Weather Service Albany NY
1201 PM EDT Sat Jul 6 2019
NYZ052>054-061630-
Eastern Albany-Western Rensselaer-Eastern Rensselaer-
1201 PM EDT Sat Jul 6 2019
...A STRONG THUNDERSTORM WILL AFFECT NORTHEASTERN ALBANY AND CENTRAL
RENSSELAER COUNTIES...
At 1159 AM EDT, a strong thunderstorm was located over Menands, or
over Albany, moving east at 15 mph.
Winds of around 40 mph are possible with this storm.
Locations impacted include...
Albany, Troy, East Greenbush, Cohoes, Watervliet, Rensselaer,
Colonie, Latham, Delmar, Menands, Green Island, Waterford,
Loudonville, West Sand Lake, Center Brunswick, Wyantskill, Averill
Park, Wynantskill, North Greenbush and Brunswick.
This includes the following highways...
Interstate 90 between exits 10 and 1S, and near exit 1E.
Interstate 87 near exit 23, and between exits 2 and 7.
Interstate 787 between exits 1 and 9.
Torrential rainfall is also occurring with this storm, and may cause
localized poor drainage flooding and ponding of water on roadways.
Do not drive your vehicle through flooded roadways. A quick inch of
rain is possible in a few locations.
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 4254 7346 4259 7384 4277 7384 4278 7371
4278 7369 4279 7368 4281 7345
TIME...MOT...LOC 1559Z 271DEG 14KT 4268 7375
WasulaSpecial Weather Statement
National Weather Service Albany NY
1234 PM EDT Sat Jul 6 2019
MAZ001-NYZ052>054-VTZ013-061715-
Northern Berkshire-Eastern Albany-Western Rensselaer-Eastern
Rensselaer-Bennington-
1234 PM EDT Sat Jul 6 2019
...A LINE OF STRONG THUNDERSTORMS WILL AFFECT NORTHEASTERN
BERKSHIRE...EAST CENTRAL ALBANY...CENTRAL RENSSELAER AND SOUTHWESTERN
BENNINGTON COUNTIES...
At 1233 PM EDT, radar indicated strong thunderstorms were located
along a line extending from near Bennington to near East Greenbush.
Movement was east at 15 mph.
Winds in excess of 40 mph are possible with these storms.
Torrential rainfall is also occurring with these storms, and may
cause localized flooding. Do not drive your vehicle through flooded
roadways.
Locations impacted include...
East Greenbush, North Adams, Rensselaer, Adams, Williamstown, Pownal,
Cheshire, Stephentown, Grafton, Berlin, Stamford, Readsboro, Florida,
Hancock, New Ashford, West Sand Lake, Averill Park, Wyantskill,
Wynantskill and North Greenbush.
This includes the following highways...
Interstate 90 between exits 10 and 8.
Interstate 787 between exits 1 and 4.
LAT...LON 4274 7302 4270 7302 4270 7295 4267 7300
4266 7298 4266 7296 4254 7315 4255 7390
4271 7365 4286 7336 4285 7293 4274 7293
TIME...MOT...LOC 1633Z 265DEG 13KT 4282 7317 4259 7375
JECSpecial Weather Statement
National Weather Service Albany NY
116 PM EDT Sat Jul 6 2019
MAZ001-NYZ052>054-059>061-061800-
Northern Berkshire-Eastern Albany-Eastern Columbia-Western
Rensselaer-Eastern Greene-Western Columbia-Eastern Rensselaer-
116 PM EDT Sat Jul 6 2019
...A LINE OF STRONG THUNDERSTORMS WILL AFFECT NORTH CENTRAL
BERKSHIRE...NORTHEASTERN COLUMBIA...SOUTHEASTERN ALBANY AND SOUTHERN
RENSSELAER COUNTIES...
At 116 PM EDT, radar indicated strong thunderstorms were located
along a line extending from near New Ashford to New Baltimore.
Movement was east at 20 mph.
Winds in excess of 40 mph are possible with these storms.
Torrential rainfall is also occurring with these storms, and may
cause localized flooding. Do not drive your vehicle through flooded
roadways.
Locations impacted include...
East Greenbush, North Adams, Nassau, Williamstown, New Baltimore,
Ravena, Stephentown, New Lebanon, Berlin, Castleton-On-Hudson,
Hancock, New Ashford, West Sand Lake, Averill Park, Selkirk, Sand
Lake, Coeymans, Poestenkill, East Nassau and Coeymans Hollow.
This includes the following highways...
Interstate 90 near exit 10.
Interstate 87 between exits 21A and 22.
LAT...LON 4242 7337 4245 7392 4259 7376 4271 7349
4269 7309
TIME...MOT...LOC 1716Z 272DEG 20KT 4267 7328 4246 7378
JECThe Albany radar (KENX), 32 km away, was scanning. The volume nearest the first event began at 17:54 UTC.
7 thunderstorm wind. Local standard time, as filed.
Trees were downed in the Stuyvesant area, some onto roads.
A metal shed at a Lowe's was destroyed and blown onto a Wal-Mart next door in Greenport.
Trees were downed at Creeklocks Road and Schoolhouse Lane.
Numerous trees and wires were downed in the village of Tivoli.
At least 100 trees were snapped halfway down in a path, along with a few cherry trees downed.
A tree was downed north of Kerley Corners Road.
A tree was downed on Route 9W.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in New York in 2019Every state in 2019This day in weather historyWarnings in New York, July 2019
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: 834737, 834738, 834739, 834740, 835485, 834741, 834742.