During the early morning hours, a line of showers and thunderstorms rapidly developed across the mid-Hudson Valley of New York due to a shortwave trough and upper level jet streak in place. Despite it being around the sunrise hour, areas in Dutchess County were unstable, with high dew points.
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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.
During the early morning hours, a line of showers and thunderstorms rapidly developed across the mid-Hudson Valley of New York due to a shortwave trough and upper level jet streak in place. Despite it being around the sunrise hour, areas in Dutchess County were unstable, with high dew points. This allowed this line of thunderstorms to become severe as it crossed eastern parts of the county, producing wind damage. The line quickly raced east into Connecticut by the mid-morning hours.
Another line of thunderstorms developed during the early afternoon hours ahead on an approaching surface cold front. With the moist atmosphere in place, a few of the thunderstorms along the line became severe, with damaging winds. This round of thunderstorms ended by the mid-afternoon as the line moved into western New England.
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 Jun 25, 3:30 AM EST, 2 hours 15 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE ALBANY NY 430 AM EDT MON JUN 25 2012 .SYNOPSIS... A COLD FRONT WILL SLOWLY MOVE EASTWARD ACROSS THE AREA THIS MORNING AND AFTERNOON...AS A WAVE OF LOW PRESSURE DEVELOPS ALONG THE FRONT. AS THE SURFACE LOW TRACKS TOWARDS THE GULF OF MAINE TONIGHT INTO TUESDAY MORNING...AN UPPER LEVEL LOW WILL TAKE RESIDENCE OVER NEW ENGLAND THROUGH MID WEEK...RESULTING IN UNSETTLED...COOL...AND BREEZY CONDITIONS ACROSS OUR AREA. A WARM-UP IS EXPECTED TOWARDS THE END OF THE WORK WEEK AS THE UPPER LOW PULLS AWAY. && .NEAR TERM /UNTIL 6 PM THIS EVENING/... AS OF 430 AM...STILL WAITING FOR THE RADAR TO FILL IN ACROSS THE AREA...AS MULTIPLE SOURCES OF MODEL GUIDANCE INDICATE AT LEAST A BROKEN LINE OF CONVECTIVE SHOWERS DEVELOPING NORTH OF THE MAIN CLUSTER OF SHOWERS/STORMS ACROSS SE NY AND EASTERN PA. SO FAR...ONLY ISOLATED SHOWERS HAVE DEVELOPED...WHILE THE MORE SOLID BATCH OF SHOWERS IS CLOSING IN ON THE EASTERN CATSKILLS AND MID HUDSON VALLEY. LIGHTNING ACTIVITY HAS BEEN DECREASING AS BEST INSTABILITY REMAINS OVER NYC/NJ/COASTAL AREAS. WILL MENTION SCATTERED THUNDERSTORMS WITH THIS ACTIVITY ALTHOUGH SOME ADJUSTMENTS TO COVERAGE MAY HAVE TO BE MADE WITH THE NEXT UPDATE AROUND 7 AM. ALSO POPS MAY HAVE TO BE LOWERED IN AND AROUND THE CAPITAL REGION IF SHOWERS DO NOT FILL IN. THE MAIN FORCING FROM A SHORT WAVE TROUGH AND UPPER LEVEL JET STREAK APPEAR TO BE FOCUSED ACROSS OUR SOUTHERN AREAS AND POINTS SOUTH...WHICH IS WHERE THE MAIN CLUSTER OF CONVECTION IS NOW LOCATED. THE SURFACE COLD FRONT APPEARS TO BE MOVING INTO WESTERN NY/PA AT THIS TIME...ALTHOUGH ITS PROGRESS WILL BE SLOWED TODAY AS A WAVE OF LOW PRESSURE DEVELOPS ALONG THE FRONT IN NEW ENGLAND...IN RESPONSE TO THE UPPER LEVEL TROUGH DIGGING AND EVENTUALLY CLOSING OFF OVER THE NORTHEAST LATE TODAY. CLOUD COVER IS FAIRLY EXTENSIVE...SO CHANCES FOR DEEP SURFACE-BASED CONVECTION SEEM FAIRLY LOW. HOWEVER...MODELS DEVELOPING AN AXIS OF INSTABILITY ALONG THE FRONT THIS MORNING INTO THE AFTERNOON AGAIN FOR AREAS MAINLY SOUTH AND EAST OF ALBANY...AS MID LEVEL LAPSE RATES STEEPEN DUE TO THE DIGGING UPPER TROUGH. SO THERE COULD BE A FLARE-UP OF ADDITIONAL CONVECTION BUT THIS IS UNCLEAR. IT DOES APPEAR THAT INSTABILITY WILL BE SOMEWHAT MODEST /500-1000 J/KG CAPE/ COMPARED TO THE MID ATLANTIC AND COASTAL NEW ENGLAND SO THE SEVERE THREAT SEEMS TO BE LOW...WITH MAINLY GENERAL THUNDERSTORMS PRODUCING CLOUD TO GROUND LIGHTNING AND GENERIC GUSTY WINDS. WILL NOT MENTION ANY ENHANCED WORDING IN THE FORECAST BUT WILL MENTION GREATER COVERAGE OF SCATTERED THUNDER OVER SOUTHEAST AREAS. TEMPS WILL BE COOLER DUE TO CLOUD COVER...BUT A FEW BREAKS DEVELOPING ALONG OR JUST AHEAD OF THE FRONT COULD RESULT IN A QUICK WARM-UP FOR SOUTHEAST AREAS. STILL...OVERALL TEMPS WILL BE BELOW NORMAL WITH THE COOLEST TEMPS OVER THE ADIRONDACKS. && .SHORT TERM /6 PM THIS EVENING THROUGH WEDNESDAY/... BY TONIGHT THE SURFACE COLD FRONT AND ANY WAVES OF LOW PRESSURE WILL BE EAST OF THE AREA OVER INTERIOR NEW ENGLAND. SO THE RELATIVELY MOIST AND SOMEWHAT UNSTABLE AIR MASS WILL BE REPLACED BY A COOLER AND MORE STABLE ENVIRONMENT. SCATTERED SHOWERS A GOOD BET FOR MOST AREAS TONIGHT THROUGH WEDNESDAY...WITH BELOW NORMAL TEMPS SETTLING IN. ON TUESDAY THE CORE OF THE UPPER LOW WILL BE MOVING EAST OF OUR AREA...WITH THE COLDEST 850MB TEMPS OVERHEAD. AS A RESULT...FORECASTING MAX TEMPS TO BE AROUND 10 DEGREES BELOW NORMAL WITH MOSTLY CLOUDY AND BREEZY CONDITIONS. INSTABILITY WILL BE LIMITED...ALTHOUGH SHOWERS WILL BECOME MORE NUMEROUS DURING THE PEAK HEATING HOURS ON TUESDAY...ESPECIALLY IF A FEW BREAKS OF SUNSHINE CAN DEVELOP. THE UPPER LOW IS FORECAST TO ONLY GRADUALLY LIFT NORTHEASTWARD INTO NORTHERN NEW ENGLAND TUESDAY NIGHT INTO WEDNESDAY...WITH ISOLATED TO SCATTERED SHOWERS PERSISTING IN OUR AREA DUE TO THE CYCLONIC FLOW REGIME BRINGING WRAP-AROUND MOISTURE. IT WILL CONTINUE TO BE BREEZY ESPECIALLY DURING THE DAYLIGHT HOURS WITH DEEPER MIXING OCCURRING. TEMPS WILL CONTINUE BELOW NORMAL...ALTHOUGH AT LEAST A SLIGHT WARM-UP IS EXPECTED ON WEDNESDAY THE CORE OF COLDEST AIR ALOFT WILL HAVE SHIFTED NORTH AND EAST OF THE REGION. && .LONG TERM /WEDNESDAY NIGHT THROUGH SUNDAY/... UPPER TROUGHING IN EASTERN NORTH AMERICA GRADUALLY LIFTS OUT AND FLAT UPPER RIDGING BUILDS INTO THE REGION WEDNESDAY THROUGH FRIDAY. BY NEXT WEEKEND...THERE ARE INDICATIONS THAT FLAT BROAD UPPER TROUGHING SETS BACK UP IN EASTERN NORTH AMERICA. SOME INCONSISTENCIES SEEN IN SOURCES OF GUIDANCE AS TO THE DETAILS OF THE LOW AMPLITUDE OF THE UPPER RIDGING AND HOW FAR NORTH THE CORE OF THE WARM BOUNDARY LAYER TEMPERATURES GET. THE GUIDANCE SEEMS TO BE QUITE BULLISH ON BRINGING THE HOT AIR TO OUR REGION...YET THE UPPER PATTERN IS QUITE FLAT AND THE FLOW IS RELATIVELY ZONAL. HOWEVER...DEPENDING ON THE TRACK AND EVOLUTION OF THE TROPICAL SYSTEM...IF IT DOES EMERGE OFF THE CAROLINAS AND POSSIBLY STRENGTHEN OVER THE GULF STREAM...THERE COULD BE ENHANCED UPPER RIDGING IN THE EASTERN U.S. AND RESULTANT MORE NORTHWARD BUILDING OF THE HOTTER TEMPERATURES. IT IS TOO EARLY TO TELL BUT WILL BE WATCHED. AS THE BROAD UPPER TROUGHING POTENTIALLY BUILDS INTO THE REGION THE END OF THE WEEK AND INTO THE WEEKEND...THERE ARE SOME INDICATIONS OF A SERIES OF WEAK SURFACE BOUNDARIES THAT COULD BE TIMED TO TRACK THROUGH FRIDAY AND SATURDAY. THERE COULD BE ENOUGH LOW LEVEL FORCING ALONG ANY SURFACE WIND SHIFT BOUNDARIES AND ANY SERIES OF WEAK SURFACE DEW POINT BOUNDARIES...BUT FOR NOW WITH THE GUIDANCE SUGGESTING A LACK OF STRONG UPPER DYNAMICS AND LACK OF STRONG SHEAR...ANY INSTABILITY COULD SUPPORT ISOLATED TO SCATTERED THUNDERSTORM ACTIVITY FRIDAY AND SATURDAY. SOME POTENTIALLY RESPECTABLE INSTABILITY COULD BE PRESENT...INCLUDING POSSIBLY SOME RELATIVELY STEEP MIDLEVEL LAPSE RATES...BUT WE HAVE SEEN SIGNIFICANT INSTABILITY BEFORE BUT A MIDLEVEL CAP CAN GREATLY REDUCE THE POTENTIAL DEVELOPMENT OF CONVECTION. THE TIMING OF THE BEST CHANCES FOR ANY THUNDERSTORM ACTIVITY LOOKS TO BE ON FRIDAY...WITH AGAIN SOME ISOLATED ACTIVITY INTO SATURDAY...BUT TIMING OF WEAK SURFACE BOUNDARIES COULD CHANGE AS WE GET CLOSER TO THE END OF THE WEEK WHEN WE CAN OBSERVE THE TRUE CHARACTER AND EVOLUTION OF THE UPPER AND SURFACE FEATURES. SO...HIGH TEMPERATURES SHOULD GET SOLIDLY IN THE 80S THURSDAY AND WELL INTO THE 80S TO AROUND 90 FRIDAY AND SATURDAY WITH A NOTICEABLE INCREASE IN HUMIDITY. ONLY POTENTIALLY SLIGHT COOLING FOR SUNDAY... DEPENDING ON WHAT SORT OF LOW LEVEL BOUNDARIES ARE ABLE TO TRACK THROUGH THE REGION. && .AVIATION /08Z MONDAY THROUGH FRIDAY/... A STRONG UPPER LEVEL DISTURBANCE WILL APPROACH FROM THE GREAT LAKES REGION OVERNIGHT INTO MONDAY. A COLD FRONT ASSOCIATED WITH THIS DISTURBANCE WILL PASS ACROSS THE TAF SITES THROUGH THE DAY MONDAY. A BROKEN BANDS OF SHOWERS ARE TRACKING AROUND AND NEAR KGFL...AND SHOULD CONTINUE THROUGH ABOUT 10Z. AFTER THAT...NOT MUCH BEHIND THE BROKEN AREA OF SHOWERS...SO ANY RAIN AFTER 10Z WOULD HAVE TO COME FROM NEW DEVELOPMENT TO THE WEST AND NORTHWEST...WHICH GUIDANCE SUGGESTS SHOULD HAPPEN. OTHER STRONGER SHOWER AND SCATTERED THUNDERSTORM ACTIVITY IS OVER WESTERN AND CENTRAL NY...ALONG THE NY/PA BORDER...AND COULD AFFECT KALB AND KPOU AFTER 09Z DEPENDING ON HOW IT EVOLVES...THEN GET TO THE KPSF AREA PERHAPS AROUND 10Z. AGAIN...GUIDANCE SUGGESTS ADDITIONAL DEVELOPMENT LATER THIS MORNING AND BETTER COVERAGE OF RAIN AFTER SUNRISE...BY MID MORNING. SO...SUGGESTING TEMPO MVFR CEILINGS AND VISIBILITIES IN RAIN BETWEEN 06Z-14Z DEPENDING ON WHICH TAF SITE...THEN PREDOMINANT LIGHT RAIN WITH MVFR CONDITIONS AFTER 12Z-14Z. BY LATE AFTERNOON 22Z-23Z THE PREDOMINANT RAIN SHOULD BE DONE...BUT KEEPING VCSH UNTIL ABOUT 03Z-05Z...WITH THE UNDERSTANDING THAT TIMING AND COVERAGE OF RAIN COULD BE DIFFERENT DEPENDING ON HOW AND WHERE THE UPPER CUT OFF LOW FORMS...WHICH WOULD BE ADDRESSED IN LATER TAF ISSUANCES. WINDS SHOULD BE LIGHT...BELOW 5 KT THROUGH ABOUT 14Z...THEN BECOME WEST TO NORTHWEST AT 11 KT OR LESS THROUGH MUCH OF THE DAY. WINDS SHOULD BECOME NORTH TO NORTHWEST AT LESS THAN 10 KT THIS EVENING AFTER A COLD FRONTAL PASSAGE. OUTLOOK... MON NT...VFR/MVFR...SCT -SHRA. TUE-WED...VFR/MVFR....SCT -SHRA WITH ISOLATED MAINLY PM -TSRA. THU...VFR. NO SIG WX. FRI...VFR/MVFR...SCT -SHRA/-TSRA. && .FIRE WEATHER... A COLD FRONT WILL SLOWLY MOVE EASTWARD ACROSS THE AREA THIS MORNING AND AFTERNOON...AS A WAVE OF LOW PRESSURE DEVELOPS ALONG THE FRONT. AS THE SURFACE LOW TRACKS TOWARDS THE GULF OF MAINE TONIGHT INTO TUESDAY MORNING...AN UPPER LEVEL LOW WILL TAKE RESIDENCE OVER NEW ENGLAND THROUGH MID WEEK...RESULTING IN UNSETTLED...COOL...AND BREEZY CONDITIONS ACROSS OUR AREA. MINIMUM RELATIVE HUMIDITY VALUES THIS AFTERNOON WILL ONLY DROP TO AROUND 55 TO 75 PERCENT...AND RISE TO MAXIMUM VALUES OF BETWEEN 85 AND 100 PERCENT TONIGHT. MIN RH VALUES ARE EXPECTED TO BE AROUND 45 TO 65 PERCENT ON TUESDAY. WINDS WILL GRADUALLY BECOME WEST-NORTHWEST AND INCREASE TO 5 TO 15 MPH TODAY. WINDS WILL BE NORTHWEST AROUND 5 TO 10 MPH TONIGHT...AND CONTINUE FROM THE NORTHWEST ON TUESDAY WITH SPEEDS INCREASING TO 10 TO 20 MPH...WITH GUSTS OF 25 TO 30 MPH POSSIBLE. && .HYDROLOGY... NO HYDRO PROBLEMS ARE EXPECTED THROUGH THE NEXT FIVE DAYS. A SLOW MOVING COLD FRONT AND WAVE OF LOW PRESSURE WILL BRING SHOWERS WITH SOME EMBEDDED THUNDERSTORMS TO AREAS MAINLY SOUTH AND EAST OF THE CAPITAL REGION TODAY. MOST OF THE MEASURABLE RAINFALL WILL OCCUR THIS MORNING INTO EARLY AFTERNOON ACROSS THESE AREAS. QPF IS EXPECTED TO BE AROUND ONE QUARTER TO ONE HALF INCH...EXCEPT THREE QUARTERS OF AN INCH TO ONE INCH SOUTH AND EAST OF ALBANY. MINOR RISES WILL OCCUR ON RIVERS AND STREAMS...AS CONDITIONS HAVE BEEN RELATIVELY DRY IN MANY LOCATIONS FOR THE PAST WEEK AND A HALF. GENERALLY LIGHT SHOWERS ARE EXPECTED FROM TONIGHT THROUGH WEDNESDAY...AS AN UPPER LEVEL LOW SETTLES IN OVER NEW ENGLAND. ONE TENTH TO ONE QUARTER INCH OF ADDITIONAL RAINFALL IS ANTICIPATED DURING THIS TIME. DRIER WEATHER SHOULD RETURN ON THURSDAY. 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...JPV NEAR TERM...JPV SHORT TERM...JPV LONG TERM...NAS AVIATION...NAS FIRE WEATHER...JPV HYDROLOGY...JPV
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE ALBANY NY 449 AM EDT MON JUN 25 2012 CTZ001-013-MAZ001-025-NYZ038>040-047>054-058>061-063>066-VTZ013>015- 261100- NORTHERN LITCHFIELD-SOUTHERN LITCHFIELD-NORTHERN BERKSHIRE- SOUTHERN BERKSHIRE-SOUTHERN HERKIMER-SOUTHERN FULTON-MONTGOMERY- 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- BENNINGTON-WESTERN WINDHAM-EASTERN WINDHAM- 449 AM EDT MON JUN 25 2012 THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE MOHAWK VALLEY...GREATER CAPITAL DISTRICT...EASTERN CATSKILLS...MID HUDSON VALLEY AND TACONICS OF EAST CENTRAL NEW YORK...AS WELL AS NORTHWESTERN CONNECTICUT...WESTERN MASSACHUSETTS AND SOUTHERN VERMONT. .DAY ONE...TODAY AND TONIGHT. THERE IS A CHANCE OF NON SEVERE THUNDERSTORMS THIS MORNING INTO THE AFTERNOON. THUNDERSTORMS COULD PRODUCE CLOUD TO GROUND LIGHTNING AND BRIEF DOWNPOURS. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY. THERE IS A CHANCE OF THUNDERSTORMS FRIDAY INTO FRIDAY NIGHT. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME. NYZ032-033-041>043-082>084-261100- NORTHERN HERKIMER-HAMILTON-NORTHERN SARATOGA-NORTHERN WARREN- NORTHERN WASHINGTON-NORTHERN FULTON-SOUTHEAST WARREN- SOUTHERN WASHINGTON- 449 AM EDT MON JUN 25 2012 THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE WESTERN AND SOUTHERN ADIRONDACKS AND LAKE GEORGE SARATOGA REGION OF EAST CENTRAL NEW YORK. .DAY ONE...TODAY AND TONIGHT. THERE IS A SLIGHT CHANCE OF NON SEVERE THUNDERSTORMS...MAINLY THIS MORNING. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY. THERE IS A CHANCE OF THUNDERSTORMS FRIDAY INTO FRIDAY NIGHT. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.
The Albany radar (KENX), 107 km away, was scanning. The volume nearest the first event began at 10:43 UTC.
3 thunderstorm wind. Local standard time, as filed.
Trees and wires were reported down due to thunderstorm winds approximately 1 mile northeast of Dover Furnace.
A 62 mph thunderstorm wind gust was reported by a member of the public and relayed via Facebook.
Trees were reported down and on wires due to thunderstorm winds in Hyde Park.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in New York in 2012Every state in 2012This day in weather historyWarnings in New York, June 2012
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: 381067, 381071, 381070.