An area of low pressure tracked from the Upper Midwest, across southern New England and into the Gulf of Maine producing moderate to heavy rainfall across Northeast New Jersey. Rapid rises were observed across northeast New Jersey's flashy rivers and streams, a few of which exceeded bankfull.
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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.
An area of low pressure tracked from the Upper Midwest, across southern New England and into the Gulf of Maine producing moderate to heavy rainfall across Northeast New Jersey. Rapid rises were observed across northeast New Jersey's flashy rivers and streams, a few of which exceeded bankfull.
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 Dec 27, 7:03 AM EST, 12 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE NEW YORK NY 703 AM EST SUN DEC 27 2009 .SYNOPSIS... LOW PRESSURE WILL MOVE ACROSS THE REGION OVERNIGHT FOLLOWED BY HIGH PRESSURE BUILDING IN FOR SUNDAY. IT TURNS PROGRESSIVE COLDER STARTING MONDAY WITH THE PASSAGE OF THE FIRST OF TWO COLD FRONTS. TUESDAY IS A BLUSTERY AND VERY COLD DAY IN THE WAKE THE SECOND FRONT WHICH IS ARCTIC IN NATURE. HIGH PRESSURE THEN BUILDS IN FOR WEDNESDAY AND THURSDAY BEFORE A COASTAL STORM POSSIBLY APPROACHES FOR THE START OF THE NEW YEAR. && .NEAR TERM /UNTIL 6 PM THIS EVENING/... LOW PRESSURE INVOF NYC EARLY THIS MORNING WILL TRACK INTO NORTHERN NEW ENGLAND TODAY. RAIN HAS ENDED ACROSS NE NJ AND NYC AND SHOULD BE CLEAR OF ALL ZONES BY MID TO LATE MORNING. LIGHT WINDS AND ABUNDANT LOW LEVEL MOISTURE WILL ALLOW AREAS OF FOG...SOME OF WHICH COULD BECOME LOCALLY DENSE...TO CONTINUE ACROSS THE AREA THIS MORNING. WILL PROBABLY NEED AN SPS TO COVER THIS. WINDS BECOME WESTERLY WITH CAA ENSUING AS THE LOW LIFTS NE IMPROVING VSBY. SKIES CLEAR OUT FROM W TO E THIS MORNING...BECOMING MOSTLY SUNNY BY AFTN AS A RIDGE OF HIGH PRES MOVES ACROSS THE AREA. TRICKY MAX T FORECAST TODAY WITH TEMPS CURRENTLY IN THE 50S. HIGHS MAY VERY WELL END UP BEING EARLY THIS MORNING...BEFORE COOLER AIR FILTERS IN BEHIND THE LOW/COLD FRONT. && .SHORT TERM /6 PM THIS EVENING THROUGH TUESDAY/... GETTING PROGRESSIVELY COLDER STARTING MONDAY WITH COLD FRONTAL PASSAGES EACH DAY. VIGOROUS SHORTWAVE PIVOTS THROUGH THE AREA LATE TONIGHT INTO MONDAY MORNING. TEMP PROFILES APPEAR TO BE COLD ENOUGH FOR SNOW ACROSS THE INTERIOR WITH AN INCH OR TWO OF ACCUMULATING SNOW. WARMER BOUNDARY TEMPS NEAR THE COAST WILL LIKELY LEAD TO A RAIN/SNOW MIX WITH LITTLE...IF ANY ACCUMULATION. THE TIMING OF THE PRECIP LOOKS TO BE DURING PART OF RUSH HOUR MONDAY MORNING. TEMPS START TO PLUMMET BEHIND THIS TROUGH/COLD FRONT AS ANOTHER SHORTWAVE PASSES MONDAY NIGHT. THERE COULD STILL ENOUGH MOISTURE TO SQUEEZE OUT SOME FLURRIES ACROSS THE CWA WITH A COATING POSSIBLE...BUT MORE IMPORTANTLY THE PASSAGE OF THIS SYSTEM WILL BRING ONE OF THE COLDEST AIRMASSES OF THE SEASON. TEMPS ON TUE WILL REMAIN IN THE 20S AND STRONG WINDS...POSSIBLY REACHING WIND ADVSY LEVELS...WILL MAKE IT FEEL LIKE TEMPS ARE IN THE SINGLE DIGITS LATE MON NIGHT INTO TUE MORNING. && .LONG TERM /TUESDAY NIGHT THROUGH SATURDAY/... HIGH PRESSURE WEST OF THE REGION TUESDAY NIGHT WILL RIDGE EASTWARD OVER THE COASTAL WATERS WEDNESDAY. THE HIGH WILL THEN EASE NORTHWARD ON THURSDAY AS LOW PRESSURE APPROACHES FROM THE SOUTHWEST. LOW PRESSURE WILL DEEPEN NEAR THE COASTAL WATERS FRIDAY THEN STALL NORTH OF THE WATERS SATURDAY. LINGERING SCA CONDITIONS TUESDAY NIGHT WITH MARGINAL GALES ON THE OCEAN WILL SUBSIDE ON WEDNESDAY. WINDS AND SEAS BUILD TO SCA LEVELS THURSDAY NIGHT WITH THE POTENTIAL FOR HAZARDOUS CONDITIONS ON THE WATERS FRIDAY AND SATURDAY DUE TO DEEPENING LOW PRESSURE. && .AVIATION /12Z SUNDAY THROUGH THURSDAY/... LOW PRESSURE JUST EAST OF THE NYC TERMINALS THIS MORNING WILL CONTINUE LIFTING TO THE NORTHEAST. WITH THE LOW NEARBY...EASTERN TERMINALS HAVE LIGHT WINDS...LOW CIGS AND FOG. THE CITY TERMINALS HAVE BEEN IMPROVING OVER THE LAST HOUR AND WILL CONTINUE TO IMPROVE TO VFR BY 13Z. EITHER WAY...VFR CONDITIONS ARE EXPECTED AT ALL THE AREA TERMINALS BY 15Z OR 16Z. WINDS EXPECTED TO BECOME WEST/NORTHWEST BY MID MORNING AT ALL THE TERMINALS IN THE WAKE OF THE LOW. VFR CONDITIONS CONTINUE TONIGHT...HOWEVER CIGS WILL GRADUALLY LOWER AS A COLD FRONT APPROACHES. FOR THE 30 HOUR TAF SITES...SNOW SHOWERS ACROSS THE INTERIOR...WITH A MIX OF SNOW AND RAIN SHOWERS WILL BE POSSIBLE CLOSER TO THE COAST DURING THE DAY ON MONDAY AS THE FRONT PUSHES ACROSS THE AREA. SUB VFR CONDITIONS WILL BE LIKELY AT TIMES. OUTLOOK 06Z MONDAY THROUGH THURSDAY... MONDAY...GENERALLY VFR...SUB-VFR AT TIMES IN SNOW SHOWERS. TUE-WED...VFR WITH STRONG NW WINDS. THU...VFR && .MARINE... LOW PRESSURE WILL PASS OVER THE FAR WESTERN WATERS THIS MORNING. AS THE LOW PASSES BY...SOUTHEAST SCA WINDS WILL LIKELY DROP BELOW 10 KT FOR A FEW HOURS...THEN PICK UP AGAIN OUT OF THE WEST AS THE LOW PULLS AWAY LATE THIS MORNING. 10 TO 15 FT SEAS WILL GRADUALLY SUBSIDE THROUGH TONIGHT ON THE OCEAN WATERS...HOWEVER SEAS ARE NOT EXPECTED TO SUBSIDE BELOW 5 FT. THUS...SCA WILL REMAIN UP ON THE OCEAN WATERS. WINDS AND SEAS HAVE FALLEN BELOW SCA LEVELS ON THE SOUND AND HARBOR...HOWEVER AN OCCASIONAL GUST TO 25KT CAN NOT BE RULED OUT. HAVE GONE AHEAD AND EXTENDED THE SCA INTO MONDAY...WITH SEAS REMAINING ABOVE 5 FT...AND WINDS INCREASING ONCE AGAIN BEHIND A COLD FRONT. GALES MAY BE NEEDED LATER MONDAY EVENING/OVERNIGHT...BUT WILL HOLD OFF ON A GALE WATCH FOR NOW. && .HYDROLOGY... A FEW RIVERS IN NE NJ AND ROCKLAND COUNTY NY EXCEEDED FLOOD STAGE OVERNIGHT...BUT ONLY ISOLD MINOR FLOODING WAS REPORTED. THE MAHWAH RIVER AT SUFFERN...RAHWAY RIVER AT SPRINGFIELD AND HOHOKUS RIVER AT HOHOKUS REMAIN ARE BETWEEN 1/2 AND 1 FT ABOVE FLOOD STAGE...BUT WILL FALL BACK BELOW FLOOD STAGE LATER THIS MORNING. UP TO A TENTH OF AN INCH OF RAINFALL EXPECTED THIS MORNING...MAINLY E OF NYC. DRY ON SUNDAY FOLLOWED BY LIGHT WINTRY PCPN ON MONDAY. DRY TUE- WED. && .TIDES/COASTAL FLOODING... A PERSISTENT EASTERLY FLOW HAS CAUSED TIDAL DEPARTURES OF 2 TO 2 1/2 FT IN THE SOUTH SHORE BAYS OF LI THIS MORNING. HIGH TIDE IS CURRENTLY OCCURRING AND THE ONLY LOCATION THAT WILL EXPERIENCE PROBLEMS IS FREEPORT. A COASTAL FLOOD ADVISORY IS IN EFFECT THROUGH 6 AM. && .OKX WATCHES/WARNINGS/ADVISORIES... CT...NONE. NY...NONE. NJ...NONE. MARINE...SMALL CRAFT ADVISORY UNTIL 6 PM EST MONDAY FOR ANZ350-353-355. && SYNOPSIS... NEAR TERM... SHORT TERM... LONG TERM... AVIATION... MARINE... HYDROLOGY... TIDES/COASTAL FLOODING...
HAZARDOUS WEATHER OUTLOOK...UPDATED NATIONAL WEATHER SERVICE NEW YORK NY 628 AM EST SUN DEC 27 2009 CTZ005>012-NJZ002>006-011-NYZ067>081-281130- NORTHERN FAIRFIELD-NORTHERN NEW HAVEN-NORTHERN MIDDLESEX- NORTHERN NEW LONDON-SOUTHERN FAIRFIELD-SOUTHERN NEW HAVEN- SOUTHERN MIDDLESEX-SOUTHERN NEW LONDON-WESTERN PASSAIC-BERGEN- EASTERN PASSAIC-ESSEX-HUDSON-UNION-ORANGE-PUTNAM-ROCKLAND- NORTHERN WESTCHESTER-SOUTHERN WESTCHESTER-NEW YORK (MANHATTAN)-BRONX- RICHMOND (STATEN ISLAND)-KINGS (BROOKLYN)-QUEENS-NASSAU- NORTHWESTERN SUFFOLK-NORTHEASTERN SUFFOLK-SOUTHWESTERN SUFFOLK- SOUTHEASTERN SUFFOLK- 628 AM EST SUN DEC 27 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHERN CONNECTICUT...NORTHEAST NEW JERSEY AND SOUTHEAST NEW YORK. .DAY ONE...TODAY AND TONIGHT. HAZARDOUS WEATHER NOT EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY A COASTAL STORM COULD BRING A SIGNIFICANT SNOW TO AT LEAST PARTS OF THE REGION FOR NEW YEARS DAY INTO SATURDAY. THE DEVELOPMENT...TRACK AND INTENSITY OF THIS POSSIBLE STORM ARE VERY UNCERTAIN AT THIS TIME. .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. ANZ330-335-338-340-345-350-353-355-281130- 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- 628 AM EST SUN DEC 27 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR ATLANTIC COASTAL WATERS. .DAY ONE...TODAY AND TONIGHT. HAZARDOUS WEATHER NOT EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY STRONG GALE FORCE WINDS ARE LIKELY MONDAY NIGHT INTO TUESDAY. GALES ARE ALSO POSSIBLE LATE IN THE WEEK DEPENDING ON THE DEVELOPMENT AND TRACK OF A POSSIBLE COASTAL STORM. .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 553 AM EST SUN DEC 27 2009 CTZ005>012-NJZ002-003-006-NYZ067>081-271500- NORTHERN FAIRFIELD-NORTHERN NEW HAVEN-NORTHERN MIDDLESEX- NORTHERN NEW LONDON-SOUTHERN FAIRFIELD-SOUTHERN NEW HAVEN- SOUTHERN MIDDLESEX-SOUTHERN NEW LONDON-WESTERN PASSAIC-BERGEN- HUDSON-ORANGE-PUTNAM-ROCKLAND-NORTHERN WESTCHESTER- SOUTHERN WESTCHESTER-NEW YORK (MANHATTAN)-BRONX- RICHMOND (STATEN ISLAND)-KINGS (BROOKLYN)-QUEENS-NASSAU- NORTHWESTERN SUFFOLK-NORTHEASTERN SUFFOLK-SOUTHWESTERN SUFFOLK- SOUTHEASTERN SUFFOLK- 553 AM EST SUN DEC 27 2009 AS LOW PRESSURE SLOWLY TRACKS OVER THE LOCAL AREA THIS MORNING...RAIN WILL COME TO AN END AND WINDS WILL LIGHTEN CAUSING AREAS OF FOG TO PERSIST...SOME OF WHICH WILL BE LOCALLY DENSE. WESTERLY WINDS WILL INCREASE BEHIND THE LOW ALLOWING CONDITIONS TO RAPIDLY IMPROVE.
The national radar mosaic for the moment the first event began.
1 flood. Local standard time, as filed.
The Saddle River at Lodi rose above its flood stage of 6.0 ft at 7:15am EST. The river crested at 6.16 ft. at 9:15am, and returned within its banks at 10:30am.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in New Jersey in 2009Every state in 2009This day in weather historyWarnings in New Jersey, December 2009
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: 204244.