A tight pressure gradient, between strong low pressure tracking from the Mid-Mississippi River Valley to the Great Lakes and stubborn high pressure over the Canadian Maritimes, created a 24-30 hour period of strong east to northeast winds across the region April 16 into the seventeenth. The winds acted to pile waters along the shoreline, with widespread minor flooding and areas of moderate…
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The episode as NWS OKX wrote it up.
A tight pressure gradient, between strong low pressure tracking from the Mid-Mississippi River Valley to the Great Lakes and stubborn high pressure over the Canadian Maritimes, created a 24-30 hour period of strong east to northeast winds across the region April 16 into the seventeenth. The winds acted to pile waters along the shoreline, with widespread minor flooding and areas of moderate flooding during the times of high tide on the night of April sixteenth. The highest tidal levels were recorded along the north and south shores of Western Long Island and Queens as well as along New York Harbor.
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 Apr 16, 3:46 PM EST, 1 hour 2 minutes earlier.
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NEW YORK NY
446 PM EDT SAT APR 16 2011
.SYNOPSIS...
LOW PRESSURE WITH A COLD FRONT MOVES THROUGH TONIGHT. HIGH PRESSURE
THEN GRADUALLY BUILDS IN DURING SUNDAY. A STATIONARY FRONT WILL
REMAIN TO THE SOUTH OF THE REGION ON MONDAY AND TUESDAY BEFORE
MOVING THROUGH AS A WARM FRONT ON WEDNESDAY. THIS WILL BE FOLLOWED
BY A COLD FRONT WEDNESDAY NIGHT AS LOW PRESSURE MOVES THROUGH
SOUTHEASTERN CANADA.
&&
.NEAR TERM /UNTIL 6 AM SUNDAY MORNING/...
RAIN WILL CONTINUE TO OVERSPREAD THE CWA TONIGHT. WITH THE CWA JUST
NORTHEAST OF THE THETA-E RIDGE AND STRONGER ISENTROPIC LIFT MOVING
IN...RAIN MAY BE HEAVY AT TIMES WITHIN A FEW HOURS EITHER WAY OF
AROUND MIDNIGHT. FORECAST CAPES NOT TO IMPRESSIVE FOR
THUNDER...HOWEVER BASED ON OBSERVATIONS...THUNDER STILL POSSIBLE
JUST TO THE NORTHEAST AND SOUTH OF WHAT COULD BE A TRIPLE
POINT/SECONDARY LOW MOVING THROUGH LATER TONIGHT. SOME UPPER SUPPORT
TOO WITH JET STREAK MOVING THROUGH. SO HAVE LEFT IN A CHANCE OF
THUNDER FOR MOST OF THE CWA. BEST CHANCES RIGHT AHEAD AND ALONG THIS
TRIPLE POINT AND COLD FRONT EXTENDING SOUTHWARD FROM IT.
BASED ON FLASH FLOOD GUIDANCE AND QPF FORECAST...HAVE DECIDED TO
DROP THE FLOOD WATCH FOR ALL BUT THE NJ ZONES. SEE HYDROLOGY SECTION
FOR MORE DETAILS.
WIND ADVISORY BEING CONTINUED OVER NYC/LONG ISLAND/COASTAL CT/NE
NJ/SRN WESTCHESTER. NAM SEEMS TO BE HANDLING EVOLUTION OF CURRENT
SYSTEM VERY WELL...INCLUDING DEVELOPING TRIPLE POINT LOW...WITH
EXPECTED PRESSURE FALLS AHEAD OF IT...AND RESULTANT INCREASE IN LOW
LEVEL JET (ALSO WELL CAPTURED BY NAM)...COULD VERY WELL SEE
SUSTAINED AND WIND GUST CRITERIA BEING MET...ESPECIALLY OVER LONG
ISLAND. LEAST CONFIDENT ABOUT NJ PORTION OF ADVISORY...BUT NOT
CONFIDENT ENOUGH TO LOWER IT THERE. HAVE EXTENDED ADVISORY OVER SE
COASTAL CT AND SUFFOLK COUNTY THROUGH 10Z...AND REMAINDER THROUGH 7Z
REFLECTING NAM FRONTAL TIMING. ALSO WILL MONITOR INTERIOR SE CT FOR
POSSIBLE NEED TO EXPAND ADVISORY DEPENDING ON HOW MUCH OF FORECAST
55-60 KT 850 WINDS ACTUALLY MIX DOWN...WOULD NEED 70-75 PERCENT TO
REACH ADVISORY CRITERIA...AND WITH STRONG MARINE INFLUENCE...NOT
SURE IF THAT CAN BE ACHIEVED.
TEMPERATURES ACTUALLY RISE DURING THE NIGHT WITH A STRONG SOUTHERLY
FLOW.
&&
.SHORT TERM /6 AM SUNDAY MORNING THROUGH SUNDAY NIGHT/...
LINGERING CHANCE OF RAIN FOR THE EASTERN ZONES BY DAYBREAK ON SUNDAY
WITH THE COLD FRONT MOVING THROUGH. SOME CLEARING IN THE
MORNING...BUT WITH CYCLONIC FLOW ALOFT AND A WET SOIL...EXPECTING
SOME CU BUILDUP LATE MORNING/AFTERNOON. SHORTWAVE ALOFT MOVES
THROUGH IN THE AFTERNOON/EVENING HOURS. WILL PUT IN A CHANCE OF
SPRINKLES FOR THE AFTERNOON. MAV/NAM MOS BLEND LOOKED GOOD FOR HIGHS.
GUSTY WSW-W WINDS LIKELY SUNDAY...WITH HIGH LOW LEVEL LAPSE RATES
ALLOWING FOR MIXING DOWN OF MOST IF NOT ALL OF 30-40 KT 950 HPA
WINDS. IN ADDITION RELATIVE TIGHT PRESSURE GRADIENT BETWEEN
DEPARTING LOW AND HIGH BUILDING IN WILL PROMOTE RELATIVELY STRONG
SURFACE WINDS OF 15-25 MPH TO GO ALONG WITH GUSTS UP TO 35 MPH -
HIGHEST NYC METRO/LONG ISLAND/COASTAL CT.
CLEARING SKIES AND DIMINISHING WINDS THEN EXPECTED SUNDAY NIGHT.
&&
.LONG TERM /MONDAY THROUGH SATURDAY/...
A NEARLY ZONAL FLOW ACROSS THE LOWER 48 TO START THE PERIOD WILL
FEATURE YET ANOTHER PAC STORM SYSTEM WHICH AMPLIFIES TO THE LEE OF
THE ROCKIES EARLY NEXT WEEK...SENDING A DEEPENING SFC LOW NE FROM
THE MID MS VLY WED INTO EASTERN CAN ON THU. MUCH LIKE THE SYSTEM WE
ARE EXPERIENCING TODAY...THERE IS UNCERTAINTY HOW FAR NORTH THE WARM
FRONT WILL GET BEFORE THE TRAILING COLD FRONT PASSES LATE WED NIGHT.
FROM A SENSIBLE WEATHER STANDPOINT...WE ARE LOOKING AT AN UNSETTLED
PERIOD WITH OVERRUNNING RAINS BREAKING OUT LATE MON...ALBEIT
LIGHT...THEN A LIGHT TO MODERATE RAIN TUE INTO WED. IT APPEARS THE
BEST THERMAL FORCING WILL RESIDE TO THE NORTH OF THE AREA WITH THE
HEAVIER RAIN. THE 12Z GFS PROVIDES ONE-QUARTER TO ONE-HALF INCH OF
RAINFALL ON TUE...WHILE THE NAM IS NEARLY DRY AS IT PLACES THE WARM
FRONT NORTH OF THE AREA. THE GLOBAL MODEL ENSEMBLE SUPPORTS A WARM
FRONT SOUTH OF THE AREA TUE...EVENTUALLY PUSHING TO THE NORTH ON
WED. THE LATTER OF WHICH IS ALWAYS QUESTIONABLE AT THIS TIME OF YEAR
WITH THE COLD NEAR SHORE WATERS...AND UPPER SUPPORT PASSING TO THE
NW. THERE DOES APPEAR TO A BE STRONG SW PUSH JUST AHEAD OF THE FRONT
WED AFT/EVE.
ANY CONVECTION AND ALONG AND AHEAD OF FRONT IS DEPENDENT ON WHETHER
THE FORECAST AREA GETS INTO THE WARM SECTOR. PLUS...THE TIMING OF
THE COLD FRONTAL PASSAGE WED NIGHT ONLY SUPPORTS MARGINAL
INSTABILITY. RIGHT NOW...LOOKS LIKE A MODERATE SHEAR...LOW CAPE
EVENT. THUS...WILL REFRAIN FROM MENTIONING THUNDERSTORMS IN THE
FORECAST AND STICK WITH SHOWERS.
HIGH PRESSURE BRIEFLY FOLLOWS THU INTO FRI BEFORE ANOTHER PAC
FRONTAL SYSTEM APPROACHES NEXT WEEKEND.
TEMPS WILL BE NEAR OR SLIGHTLY BELOW NORMAL MON INTO TUE WITH
OVERRUNNING CLOUDS/RAIN...THEN A POSSIBLE WARMUP WED ACROSS THE
INTERIOR PENDING THE WARM FRONTAL PASSAGE. HIGHS AROUND 70 WED AFT
INLAND...BUT ONLY IN THE 50S AT THE COAST DUE TO THE ONSHORE FLOW.
THE WEEK FINISHES OUT SLIGHTLY BELOW NORMAL BEHIND THE COLD FRONTAL
PASSAGE WED NIGHT.
&&
.AVIATION /21Z SATURDAY THROUGH THURSDAY/...
LOW PRESSURE WAS OVER THE GREAT LAKES AND AN ASSOCIATED OCCLUDED
FRONT WILL CROSS THE AREA TONIGHT.
LOW LEVEL WINDSHEAR INTO THE EARLY MORNING HOURS WITH SE WINDS
AROUND 2000 FT RUNNING FROM 50-70KT (INCREASING WITH TIME) ACROSS
CITY/LONG ISLAND/COASTAL CT TERMINALS...AND 40-60KT (INCREASING
WITH TIME) ACROSS INTERIOR TERMINALS.
GUSTY SURFACE WINDS START OUT OF THE E AT 15-20G25-30KT AND SLOWLY
VEER TO THE SE AND INCREASE TO 22-31G31-42KT (LOWEST WINDS KSWF
HIGHEST WINDS COASTAL CT/LONG ISLAND TERMINALS) THIS EVENING. A
FRONTAL BOUNDARY PASSING 7-11Z FROM W TO E WILL SHIFT WINDS TO THE
SW AND DECREASE SPEEDS TO 10-15G UP TO 25 KT IMMEDIATELY IN ITS
WAKE...WINDS THEN BECOME WSW-W AT 15-20G25-30 KT SUNDAY MORNING.
MVFR CEILINGS WITH RAIN CONTINUING TO SLOWLY SPREAD EAST. RAIN
INTENSIFIES THIS EVENING BRINGING IFR CONDITIONS INTO THE EARLY
MORNING HOURS. THERE IS A SMALL CHANCE OF LIFR CONDITIONS AND AN
ISOLATED RUMBLE OF THUNDER...BUT NOT CONFIDENT ENOUGH IN EITHER TO
REFLECT IN TAFS.
ONCE THE AFOREMENTIONED FRONT MOVES THROUGH...CONDITIONS QUICKLY
IMPROVE TO MVFR...THEN VFR BY AROUND 12Z W AND 14Z E.
OUTLOOK FOR 18Z SUNDAY THROUGH THURSDAY...
SUNDAY AFTERNOON-NIGHT...VFR WITH GUSTY SW WINDS BECOMING W SUNDAY NIGHT.
MONDAY...VFR.
MONDAY NIGHT-WEDNESDAY...PERIODS OF SUB-VFR POSSIBLE IN SHOWERS
AND NIGHTTIME LOW STRATUS/FOG. GUSTY WINDS/LLWS POSSIBLE
WEDNESDAY
WEDNESDAY NIGHT...PERIODS OF SUB-VFR POSSIBLE IN SHOWERS.
GUSTY WINDS/LLWS POSSIBLE. THUNDER ALSO POSSIBLE AHEAD OF A COLD
FRONT.
THURSDAY...VFR...WITH GUSTY WINDS.
&&
.MARINE...
GALE CONDITIONS ALL WATERS TONIGHT...COULD SEE SOME OCCASIONAL GUSTS
TO STORM FORCE OVERNIGHT OVER THE COASTAL OCEAN WATERS AS THE CORE
OF THE LOW LEVEL JET TRACKS OVERHEAD. SEAS BUILD TO 7 TO 13 FT ON
THE OCEAN IN RESPONSE TO THE STRONG WINDS AND TO 3 TO 6 FT ON THE
SOUND.
HAVE EXTENDED THE GALE WARNING ON THE COASTAL OCEAN WATERS EAST OF
MORICHES INLET THRU 21Z SUNDAY AS GALE GUSTS LIKELY TO CONTINUE
THROUGH MOST OF THE DAY. SCA CONDITIONS EXPECTED ELSEWHERE
SUNDAY...AND LIKELY ON ALL WATERS SUNDAY NIGHT WITH CONTINUED 25-30
KT GUSTS.
SUB-SCA CONDITIONS DEVELOP ON MON WITH A DIMINISHING WESTERLY FLOW.
POTENTIAL FOR MARGINAL SCA SEAS ON THE OCEAN TUE WITH A DEVELOPING
EASTERLY FLOW NORTH OF A WARM FRONT. SOME UNCERTAINTY EXISTS WITH
THE LOCATION OF THE WARM FRONT...BUT THINKING IS THAT A WARM FRONT
REMAINS SOUTH OF THE OCEAN WATERS TUE INTO WED MORNING. THIS WOULD
PLACE THE WATERS IN A PROLONGED PERIOD OF EASTERLY FLOW. THE WARM
FRONT THEN PASSES TO THE NORTH WED AFT...FOLLOWED BY A MODERATE SW
FLOW AND EVENTUALLY A W FLOW ON THU BEHIND THE TRAILING COLD FRONT.
MARGINAL SCA SEAS FORECAST TUE-WED ON THE OCEAN WATERS PRIOR TO THE
COLD FRONTAL PASSAGE. BEST CHANCE FOR SCA WINDS WILL BE ON THU IN
THE COLD ADVECTION AND W/NW FLOW BEHIND THE FRONT. SEAS ON THE
EASTERN OCEAN WATERS MAY RAMP UP TO 6 TO 7 FT ON THU.
UNDERCUT WAVEWATCH 1 TO 3 FT ON THU. SEAS APPEAR TO BE OVERDONE IN
THE WESTERLY FLOW.
&&
.HYDROLOGY...
RAINFALL THROUGH TONIGHT EXPECTED TO RANGE GENERALLY FROM AROUND
THREE QUARTERS OF AN INCH ACROSS EASTERN ZONES TO NEARLY 2 INCHES
ACROSS THE WESTERNMOST SECTIONS OF THE CWA. BASED ON FLASH FLOOD
GUIDANCE FOR 6 AND 12 HOUR QPF VALUES...WILL KEEP THE FLOOD WATCH UP
FOR OUR NJ ZONES ONLY. WITHIN THE WATCH AREA...MINOR URBAN/POOR
DRAINAGE AREAS AND FLOOD PRONE AREAS ALONG SMALL STREAMS AND RIVERS
WOULD BE THE MOST LIKELY IMPACTS. ELSEWHERE...THERE IS ONLY JUST A
CHANCE FOR MAINLY URBANIZED/POOR DRAINAGE FLOODING.
A FLOOD WARNING HOWEVER REMAINS IN EFFECT FOR SPOTS ALONG THE
CONNECTICUT RIVER. PLEASE SEE WWW.WEATHER.GOV/NYC FOR MORE
INFORMATION.
POTENTIAL FOR AROUND ONE-HALF INCH OF RAINFALL TUE INTO WED NIGHT.
HIGHER AMOUNTS POSSIBLE IN ANY CONVECTION ALONG AND AHEAD OF COLD
FRONT WED NIGHT. THUNDERSTORM COVERAGE LOOKS TO BE ISOLATED AT THIS
TIME.
&&
.TIDES/COASTAL FLOODING...
HAVE DOWNGRADED COASTAL FLOOD WARNING TO AN ADVISORY FOR MAINLY
EASTERN PARTS OF LONG ISLAND SOUND AND EASTERN PARTS OF THE THE
ATLANTIC SHORES...MAINLY DUE TO ALL GUIDANCE SUGGESTING THAT
MODERATE THRESHOLDS WILL BE TOUGH TO REACH. THE GUIDANCE MAY INDEED
BE FORECASTING THE SURGE TO BE TOO LOW DUE TO A STRONG SE WIND THIS
EVENING...BUT KEPT THE WARNING UP WHERE GUIDANCE WAS COMING UP JUST
SHORT OR AROUND MODERATE COASTAL FLOODING THRESHOLDS.
TIDAL DEPARTURES OF 1 1/2 FT ARE NEEDED FOR MINOR COASTAL
FLOODING...AND THESE THRESHOLDS SHOULD BE MET. AROUND 2 FT
DEPARTURES WILL BE NEEDED FOR MODERATE COASTAL FLOODING.
WAVES AT THE OFFSHORE BUOYS (44065/44025/44017) OF 10-13 FT SUPPORT
6-9 FT BREAKING WAVES AT ATLANTIC BEACHES TONIGHT. AS A RESULT HAVE
ISSUED A HIGH SURF ADVISORY FOR THE APPLICABLE ZONES...WILL
EMPHASIZE THE POTENTIAL FOR WASHOVER AND MINOR TO MODERATE BEACH
EROSION.
&&
.OKX WATCHES/WARNINGS/ADVISORIES...
CT...WIND ADVISORY UNTIL 6 AM EDT SUNDAY FOR CTZ010>012.
COASTAL FLOOD ADVISORY UNTIL MIDNIGHT EDT TONIGHT FOR
CTZ009>012.
WIND ADVISORY UNTIL 2 AM EDT SUNDAY FOR CTZ009.
NY...WIND ADVISORY UNTIL 6 AM EDT SUNDAY FOR NYZ078>081.
COASTAL FLOOD ADVISORY UNTIL MIDNIGHT EDT TONIGHT FOR NYZ078-
079-081.
WIND ADVISORY UNTIL 2 AM EDT SUNDAY FOR NYZ071>075-176>179.
COASTAL FLOOD WARNING UNTIL MIDNIGHT EDT TONIGHT FOR
NYZ071>075-080-176>179.
HIGH SURF ADVISORY UNTIL 6 AM EDT SUNDAY FOR NYZ075-080-081-
178-179.
NJ...FLOOD WATCH THROUGH LATE TONIGHT FOR NJZ002-004-006-103>108.
WIND ADVISORY UNTIL 2 AM EDT SUNDAY FOR NJZ002-004-006-103>108.
COASTAL FLOOD WARNING UNTIL MIDNIGHT EDT TONIGHT FOR NJZ006-
106-108.
MARINE...GALE WARNING UNTIL 6 AM EDT SUNDAY FOR ANZ330-335-338-340-345-
353-355.
GALE WARNING UNTIL 5 PM EDT SUNDAY FOR ANZ350.
&&
SYNOPSIS...JC
NEAR TERM...JC/MALOIT
SHORT TERM...JC/MALOIT
LONG TERM...DW
AVIATION...MET
MARINE...MALOIT/DW
HYDROLOGY...JC
TIDES/COASTAL FLOODING...HAZARDOUS WEATHER OUTLOOK...UPDATED NATIONAL WEATHER SERVICE NEW YORK NY 429 PM EDT SAT APR 16 2011 CTZ007-172030- NORTHERN MIDDLESEX- 429 PM EDT SAT APR 16 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHERN CONNECTICUT. .DAY ONE...TONIGHT. FLOOD WARNING IS IN EFFECT FOR THE CONNECTICUT RIVER AT MIDDLETOWN...PLEASE REFER TO THE RIVER FLOOD WARNING AT WEATHER.GOV/BOX FOR MORE DETAILS. LOCALLY HEAVY RAINFALL TONIGHT COULD CAUSE MINOR FLOODING OF POOR DRAINAGE AREAS. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY. 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. CTZ011-172030- SOUTHERN MIDDLESEX- 429 PM EDT SAT APR 16 2011 ...COASTAL FLOOD ADVISORY IN EFFECT UNTIL MIDNIGHT EDT TONIGHT... ...WIND ADVISORY IN EFFECT UNTIL 6 AM EDT SUNDAY... THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHERN CONNECTICUT. .DAY ONE...TONIGHT. PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS. COASTAL FLOOD ADVISORY. WIND ADVISORY. FLOOD WARNING IS IN EFFECT FOR THE CONNECTICUT RIVER AT MIDDLETOWN...PLEASE REFER TO THE RIVER FLOOD WARNING AT WEATHER.GOV/BOX FOR MORE DETAILS. LOCALLY HEAVY RAINFALL TONIGHT COULD CAUSE MINOR FLOODING OF POOR DRAINAGE AREAS. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY. 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. CTZ010-012-NYZ078-079-172030- SOUTHERN NEW HAVEN-SOUTHERN NEW LONDON-NORTHWESTERN SUFFOLK- NORTHEASTERN SUFFOLK- 429 PM EDT SAT APR 16 2011 ...COASTAL FLOOD ADVISORY IN EFFECT UNTIL MIDNIGHT EDT TONIGHT... ...WIND ADVISORY IN EFFECT UNTIL 6 AM EDT SUNDAY... THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHERN CONNECTICUT AND SOUTHEAST NEW YORK. .DAY ONE...TONIGHT. PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS. COASTAL FLOOD ADVISORY. WIND ADVISORY. LOCALLY HEAVY RAINFALL TONIGHT COULD CAUSE MINOR FLOODING OF POOR DRAINAGE AREAS. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY. 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. NJZ006-106-108-172030- HUDSON-EASTERN ESSEX-EASTERN UNION- 429 PM EDT SAT APR 16 2011 ...COASTAL FLOOD WARNING IN EFFECT UNTIL MIDNIGHT EDT TONIGHT... ...FLOOD WATCH IN EFFECT THROUGH LATE TONIGHT... ...WIND ADVISORY IN EFFECT UNTIL 2 AM EDT SUNDAY... THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST NEW JERSEY. .DAY ONE...TONIGHT. PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS. COASTAL FLOOD WARNING. FLOOD WATCH. WIND ADVISORY. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY. 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. CTZ009-172030- SOUTHERN FAIRFIELD- 429 PM EDT SAT APR 16 2011 ...COASTAL FLOOD ADVISORY IN EFFECT UNTIL MIDNIGHT EDT TONIGHT... ...WIND ADVISORY IN EFFECT UNTIL 2 AM EDT SUNDAY... THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHERN CONNECTICUT. .DAY ONE...TONIGHT. PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS. COASTAL FLOOD ADVISORY. WIND ADVISORY. LOCALLY HEAVY RAINFALL TONIGHT COULD CAUSE MINOR FLOODING OF POOR DRAINAGE AREAS. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY. 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. NYZ075-178-179-172030- KINGS (BROOKLYN)-SOUTHERN QUEENS-SOUTHERN NASSAU- 429 PM EDT SAT APR 16 2011 ...COASTAL FLOOD WARNING IN EFFECT UNTIL MIDNIGHT EDT TONIGHT... ...HIGH SURF ADVISORY IN EFFECT UNTIL 6 AM EDT SUNDAY... ...WIND ADVISORY IN EFFECT UNTIL 2 AM EDT SUNDAY... THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST NEW YORK. .DAY ONE...TONIGHT. PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS. COASTAL FLOOD WARNING. HIGH SURF ADVISORY. WIND ADVISORY. LOCALLY HEAVY RAINFALL TONIGHT COULD CAUSE MINOR FLOODING OF POOR DRAINAGE AREAS. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY. 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. NYZ080-172030- SOUTHWESTERN SUFFOLK- 429 PM EDT SAT APR 16 2011 ...COASTAL FLOOD WARNING IN EFFECT UNTIL MIDNIGHT EDT TONIGHT... ...HIGH SURF ADVISORY IN EFFECT UNTIL 6 AM EDT SUNDAY... ...WIND ADVISORY IN EFFECT UNTIL 6 AM EDT SUNDAY... THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST NEW YORK. .DAY ONE...TONIGHT. PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS. COASTAL FLOOD WARNING. HIGH SURF ADVISORY. WIND ADVISORY. LOCALLY HEAVY RAINFALL TONIGHT COULD CAUSE MINOR FLOODING OF POOR DRAINAGE AREAS. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY. 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. NYZ081-172030- SOUTHEASTERN SUFFOLK- 429 PM EDT SAT APR 16 2011 ...COASTAL FLOOD ADVISORY IN EFFECT UNTIL MIDNIGHT EDT TONIGHT... ...HIGH SURF ADVISORY IN EFFECT UNTIL 6 AM EDT SUNDAY... ...WIND ADVISORY IN EFFECT UNTIL 6 AM EDT SUNDAY... THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST NEW YORK. .DAY ONE...TONIGHT. PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS. HIGH SURF ADVISORY. COASTAL FLOOD ADVISORY. WIND ADVISORY. LOCALLY HEAVY RAINFALL TONIGHT COULD CAUSE MINOR FLOODING OF POOR DRAINAGE AREAS. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY. 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. NYZ071>074-176-177-172030- SOUTHERN WESTCHESTER-NEW YORK (MANHATTAN)-BRONX- RICHMOND (STATEN ISLAND)-NORTHERN QUEENS-NORTHERN NASSAU- 429 PM EDT SAT APR 16 2011 ...COASTAL FLOOD WARNING IN EFFECT UNTIL MIDNIGHT EDT TONIGHT... ...WIND ADVISORY IN EFFECT UNTIL 2 AM EDT SUNDAY... THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST NEW YORK. .DAY ONE...TONIGHT. PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS. COASTAL FLOOD WARNING. WIND ADVISORY. LOCALLY HEAVY RAINFALL TONIGHT COULD CAUSE MINOR FLOODING OF POOR DRAINAGE AREAS. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY. 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. NJZ002-004-103>105-107-172030- WESTERN PASSAIC-EASTERN PASSAIC-WESTERN BERGEN-EASTERN BERGEN- WESTERN ESSEX-WESTERN UNION- 429 PM EDT SAT APR 16 2011 ...FLOOD WATCH IN EFFECT THROUGH LATE TONIGHT... ...WIND ADVISORY IN EFFECT UNTIL 2 AM EDT SUNDAY... THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST NEW JERSEY. .DAY ONE...TONIGHT. PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS. FLOOD WATCH. WIND ADVISORY. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY. 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. CTZ005-006-008-NYZ067>070-172030- NORTHERN FAIRFIELD-NORTHERN NEW HAVEN-NORTHERN NEW LONDON-ORANGE- PUTNAM-ROCKLAND-NORTHERN WESTCHESTER- 429 PM EDT SAT APR 16 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHERN CONNECTICUT AND SOUTHEAST NEW YORK. .DAY ONE...TONIGHT. LOCALLY HEAVY RAINFALL TONIGHT COULD CAUSE MINOR FLOODING OF POOR DRAINAGE AREAS. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY. 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. ANZ330-335-338-340-345-353-355-172030- 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- FIRE ISLAND INLET NY TO MORICHES INLET NY OUT 20 NM- SANDY HOOK NJ TO FIRE ISLAND INLET NY OUT 20 NM- 429 PM EDT SAT APR 16 2011 ...GALE WARNING IN EFFECT UNTIL 6 AM EDT SUNDAY... THIS HAZARDOUS WEATHER OUTLOOK IS FOR ATLANTIC COASTAL WATERS. .DAY ONE...TONIGHT. PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS. GALE WARNING. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY. 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. ANZ350-172030- MORICHES INLET NY TO MONTAUK POINT NY OUT 20 NM- 429 PM EDT SAT APR 16 2011 ...GALE WARNING IN EFFECT UNTIL 5 PM EDT SUNDAY... THIS HAZARDOUS WEATHER OUTLOOK IS FOR ATLANTIC COASTAL WATERS. .DAY ONE...TONIGHT. PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS. GALE WARNING. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY. PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS. GALE WARNING. .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. MALOIT
The national radar mosaic for the moment the first event began.
5 coastal flood. Local standard time, as filed.
Water levels rose to 5.47 feet NGVD, 0.47 feet above the stage for moderate flooding at the USGS tidal gage in Hudson Bay at Freeport.
Water levels rose to 5.64 feet NGVD, 0.14 feet above the stage for moderate flooding at the USGS tidal gage in East Rockaway Inlet at Atlantic Beach.
Water levels rose to 8.68 feet MLLW, 0.18 feet above the stage for moderate flooding at the Bergen Point West Reach NOS tidal gage.
Water levels rose to 8.12 feet MLLW, 0.12 feet above the stage for moderate flooding at the Battery NOS tidal gage.
Water levels rose to 10.94 feet MLLW, 0.44 feet above the stage for moderate flooding at the Kings Point NOS tidal gage.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in New York in 2011Every state in 2011This day in weather historyWarnings in New York, April 2011
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: 303891, 303880, 303868, 303870, 303876.