A broken line of thunderstorms tracked across eastern New York during the afternoon and evening of May 10th. One of these storms produced wind damage in Schoharie County.
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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 ALY wrote it up.
A broken line of thunderstorms tracked across eastern New York during the afternoon and evening of May 10th. One of these storms produced wind damage in Schoharie County.
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 May 10, 3:49 PM EST, 4 minutes earlier.
Area Forecast Discussion National Weather Service Albany NY 449 PM EDT Thu May 10 2018 .SYNOPSIS... A cold front will cross the area this evening, which will be accompanied by scattered showers and thunderstorms. High pressure will briefly build in tomorrow with fair and dry weather. A warm front will bring showers and a chance of thunderstorms back to the region late Friday night into Saturday with cool conditions. Sunday looks mainly dry and cool, but clouds may linger. && .NEAR TERM /UNTIL 8 PM FRIDAY NIGHT/... As of 345 PM EDT... The Slight Risk across the southwestern portion of the forecast area has been reduced to a Marginal Risk by SPC. The main reason is the lack of robust instability and abundant low-level moisture with sfc dewpts in the 40s to mid 50s. A line of showers and thunderstorms continues to approach from central NY and PA. The lack of robust low-level moisture is going to mitigate the severe weather threat across the forecast area. We get into a mini warm sector in the mid-late afternoon with sfc dewpts getting into the lower to mid 50s. There is decent shear upstream as hinted by the 12Z KBUF sounding, but the 12Z KALY sounding is more stable. A few strong ref cores along a line are possible from KALB south and west in the 21Z- 00Z time frame based on the latest CAMS such as the 3-km HRRR and 12Z NAMnest. Some gusty winds are possible with any thunderstorm in the 35-50 mph range and a rogue severe or two can not be ruled out. The model soundings hint at inverted-V type signatures. We will see if we can muster SBCAPEs of 500-1000 J/kg. The latest RAP SBCAPE analysis has the best instability of 500-1000 J/kg over central NY with 0-6 km bulk shear values of 35-45 kts. The line of showers and thunderstorms should crumble with the stabilization of the boundary layer with the loss of the diurnal heating. Isolated to scattered showers will linger early this evening, as an initial surge of subsidence occurs in the wake of the front. A secondary cold front drops south/southeast from northern NY between 05Z-09Z with some clouds, isolated showers over the higher terrain and sprinkles. Some slight chance pops were kept in for the early morning. Strong cold advection occurs in the wake of the front with lows in the mid and upper 40s over most of the forecast area. Some 30s are possible over the southern Adirondacks, southern Greens, and eastern Catskills. The winds will be gusty from the west at 10-15 mph with gusts in the 20-30 mph range, and will veer to the northwest at 5-15 mph with a few gusts around 25 mph. Tomorrow will be a cool and dry May day with high pressure building in from the northern Great Lakes Region, and southern Ontario. The strong subsidence from the sfc high will yield mostly sunny conditions early on, before some high clouds increase from the south and west late in the day. These clouds will be ahead of the old cold front which will begin to lift back north as a warm front from the OH Valley and Mid Atlantic States with thermal advection rainfall FRI night. Highs on Friday were projected based on the a blend of the NAM and GFS MOS guidance with upper 50s to mid 60s mainly in the lower elevations, and 50s to lower 60s over the hills and mtns. A few upper 60s may be possible over the mid-Hudson Valley and NW CT. && .SHORT TERM /8 PM FRIDAY NIGHT THROUGH SATURDAY NIGHT/... Friday night, A southwesterly low level jet begins to overrun a decent thermal boundary. Impressive 850 frontogenesis, warm advection and elevated instability will result in clouds thickening and lowering overnight. Some showers and embedded thunderstorms are forecast to move from the west southwest to east northeast across the forecast area, especially after midnight and south of Interstate 90. Have POPS into the high chc and likely range after midnight in the warm advection regime, again mainly along and south of I 90. Lows will be of the wet bulb variety in the upper 30s across the Dacks to upper 40s for mid-Hudson Valley into NW CT. Due to elevated nature of this convection no severe weather is expected at this time. Another weak wave moves along the warm front on Saturday bringing continued threat for showers and thunderstorms. Showalter index is negative south of I90 so greatest threat for thunderstorms continues south of Interstate 90. Highs on Saturday generally in the 50s with some 60s far south. For saturday night, forcing moves east of area and front tries to sag south of our area. Showers should end across the northern part of the area, but showers may linger across the southern part of the area. Lows 30s north to 40s south. && .LONG TERM /SUNDAY THROUGH THURSDAY/... On Sunday, high pressure near Montreal will bring a northerly flow to the area and try to push cold front south of the area. There is some indication that a weak wave will move along the front and slow its progress. This wave may keep clouds lingering across the Albany forecast area and there may be a few showers across the Catskills, Mid-Hudson Valley and southern Taconics and Litchfield Hills. Highs on Sunday near normal in the upper 50s hills to mid 60s valleys. For Sunday night, chances for precipitation gradually diminish as the wave moves eastward and the cold front sags south of the forecast area. Skies will become partly cloudy with lows in the 40s. Monday and Tuesday looks mainly fair and mild as weak high pressure crests across the area. Highs Monday in the 60s and 70s. Lows Monday night in the 40s and 50s. Highs on tuesday in the 70s to near 80. The frontal boundary to our south may begin lifting northward as a warm front for Tuesday night into Wednesday. Have indicated increasing chances for showers and isolated thunderstorms during this period. This front is projected to stall over the area and there may be a large temperature and humidity gradient across the area. It may become fairly humid with a deep southerly flow developing across the south, with cooler drier air to the north. Models show waves moving along the front may bring a very wet period Wed-Thu. Lows in the 40s north to 50s south and highs in the 60s north to 70s south. && .AVIATION /21Z THURSDAY THROUGH TUESDAY/... A cold front will move across the region late this afternoon into early this evening with some scattered showers and thunderstorms. A secondary cold front with isolated showers will move through around midnight. High pressure will ridge in with cooler and drier weather for tomorrow. VFR conditions are expected most of the afternoon, except for lapses to MVFR and perhaps even IFR levels with scattered showers and thunderstorms between 21Z-00Z/FRI. Tempo groups were used to address the scattered showers and thunderstorms. VFR conditions will return in the wake of the front with sct-bkn cigs 4-6 kft AGL. Some high MVFR cigs may linger at KPSF until 02Z/FRI. A secondary cold front will pass through between 04Z- 08Z/FRI with the skies clearing and the winds shifting from the W/SW to the W/NW. Some scattered mid and high clouds will persist into the the mid morning before clearing with the sfc anticyclone building in. South to southwest winds at 8-15 kts will continue this afternoon, with some gusts of 20-25 kt range possible, especially at KALB/KPSF. The winds will shift into the west tonight at 8-14 kt with some gusts of 20-25 kt gusts possible. The winds will then veer to the west to northwest between 06Z- 12Z/Fri at 8-12 kts...and continue into the afternoon. Winds will much stronger, and variable in direction in and near any heavy showers and/or thunderstorms. Outlook... Friday Night: High Operational Impact. Likely SHRA...TSRA. Saturday: High Operational Impact. Likely SHRA...TSRA. Saturday Night: No Operational Impact. Slight Chance of SHRA. Sunday: No Operational Impact. NO SIG WX. Sunday Night: Low Operational Impact. Slight Chance of SHRA. Monday: No Operational Impact. NO SIG WX. Monday Night: No Operational Impact. NO SIG WX. Tuesday: No Operational Impact. NO SIG WX. && .FIRE WEATHER... Scattered showers and some thunderstorms will impact the region this evening ahead of a cold front. Maximum RH values of 70 to 90 percent are expected tonight. Southerly winds of 10 to 25 mph this evening will shift to northwest at 5 to 15 mph tonight. Friday, Winds be northwest with speeds between 10 and 15 mph with occasional higher gusts. Minimum RH will dip to 20 to 40 percent. && .HYDROLOGY... Rainfall during the next 7 days ranges from around a half an inch over the far northern part of the area to around 2 inches over the southern part of the area. Best chances for rain are Friday night and Saturday and again next Tuesday night through Thursday. This rainfall is not expected to cause river flooding at this time. 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...SND/BGM/Wasula NEAR TERM...Wasula SHORT TERM...SND LONG TERM...SND AVIATION...Wasula FIRE WEATHER...SND HYDROLOGY...SND
Hazardous Weather Outlook National Weather Service Albany NY 329 PM EDT Thu May 10 2018 CTZ001-013-MAZ001-025-NYZ032-033-038>043-047>054-058>061-063>066- 082>084-VTZ013>015-111100- 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- 329 PM EDT Thu May 10 2018 This Hazardous Weather Outlook is for northwestern Connecticut, western Massachusetts, east central New York, eastern New York and southern Vermont. .DAY ONE...This Afternoon and Tonight. There is a slight to low chance of mainly non severe thunderstorms this afternoon into the early evening ahead of a cold front. Some gusty winds of 40 to 50 mph are possible with the thunderstorms. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. Another chance for thunderstorms arrive late Friday night into Saturday, mainly along and south of Interstate 90. Some locally heavy rainfall is possible. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time.
The Albany radar (KENX), 24 km away, was scanning. The volume nearest the first event began at 20:50 UTC.
1 thunderstorm wind. Local standard time, as filed.
A tree and large tree limbs were downed on Sunnyside Road.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in New York in 2018Every state in 2018This day in weather historyWarnings in New York, May 2018
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: 751013.