An isolated pulse severe thunderstorm moved along the sea breeze front across Northern Nassau County.
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 OKX wrote it up.
An isolated pulse severe thunderstorm moved along the sea breeze front across Northern Nassau 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 New York, NY wrote its last area forecast discussion before the first event at Aug 5, 3:09 PM EST, 27 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE NEW YORK NY 409 PM EDT WED AUG 5 2009 .SYNOPSIS... A COLD FRONT WILL PRODUCE SCATTERED THUNDERSTORMS INTO THIS EVENING AS IT MOVES THROUGH. WEAK LOW PRESSURE WILL THEN PASS JUST TO THE SOUTH OF THE AREA ALONG THE SLOW-MOVING FRONT THURSDAY AND THURSDAY NIGHT. CANADIAN HIGH PRESSURE WILL BUILD INTO THE REGION FOR FRIDAY INTO SATURDAY MORNING. DISTURBANCES MOVING ALONG AN APPROACHING WARM FRONT MAY BRING UNSETTLED WEATHER LATER IN THE WEEKEND AND EARLY NEXT WEEK. && .NEAR TERM /UNTIL 6 AM THURSDAY MORNING/... SCATTERED THUNDERSTORMS FORMING ALONG A COLD FRONT APPROACHING THE NYC METRO AREA AND ALONG SEA BREEZE BOUNDARIES SHOULD CONTINUE INTO THIS EVENING...WITH HELP OF RIGHT REAR QUADRANT OF UPPER JET STREAK OVER NORTHERN PORTION OF THE CWA AND APPROACHING MID LEVEL VORT FROM THE WEST. WITH MLCAPE 1000-1500 J/KG AND DCAPE NEAR 1000 J/KG THERE COULD BE A FEW PULSE SEVERE STORMS...BUT AN ORGANIZED SEVERE THREAT IS UNLIKELY. INDIVIDUAL CELLS HAVE RAINFALL RATES OF 1-2 INCHES/HOUR AND SO WILL ALSO HAVE TO BE MONITORED FOR ANY FLOODING IMPACTS... ESPECIALLY WITH THE RELATIVELY SLOW FORWARD MOTION OF THE CURRENT CELLS. && .SHORT TERM /6 AM THURSDAY MORNING THROUGH SATURDAY NIGHT/... FCST MODELS ARE GIVING MORE CREDENCE TO OPEN FRONTAL WAVE PASSING S OF THE AREA ON THU...SO HAVE EXPANDED CHANCE POP TO NYC METRO...LONG ISLAND AND THE IMMEDIATE SOUTH COAST OF CT. EXPECT SKIES TO CLOUD OVER DURING THE MORNING...WITH SHOWERS AND POSSIBLY EMBEDDED THUNDER MAINLY IN THE AFTERNOON AND EVENING AS FCST SOUNDINGS SHOW SOME ELEVATED CAPE. HIGHS WILL BE ONLY IN THE MID/UPPER 70S...PERHAPS LOWER 80S WELL INLAND WHERE THERE MAY BE MORE SUNSHINE...FOLLOWED BY LOWS THU NIGHT IN THE UPPER 50S AND 60S AS COOLER AIR FILTERS DOWN FROM THE INTERIOR. WEAK HIGH PRESSURE BUILDS INTO THE AREA ON FRI...WITH BELOW NORMAL TEMPS AS H8 TEMPS NEAR 10-11C SUPPORT MAXES A COUPLE OF DEGREES EITHER SIDE OF 80. WITH SIMILAR H10-8 THICKNESSES AND SOME CLOUDS MOVING IN FROM THE WEST VIA UPPER JET STREAK/MID LEVEL VORT ON BACK SIDE OF DEPARTING UPPER TROUGH...LOWS FRI NIGHT SHOULD BE SIMILAR TO THOSE OF THU NIGHT...EXCEPT OVER INTERIOR SOUTHERN CT AND THE LONG ISLAND PINE BARRENS WHERE THERE COULD BE SOME MID 50S. SATURDAY LOOKS TO START OFF ALL RIGHT...BUT WITH NW FLOW ALOFT AND WARM FRONT APPROACHING FROM THE SW MAY HAVE TO WATCH FOR IMPACT FROM POTENTIAL UPSTREAM MCS BY AFTERNOON. AS A RESULT NYC METRO CARRIES CHANCE POP...WITH ONLY SLIGHT CHANCE FARTHER NORTH/EAST. && .LONG TERM /SUNDAY THROUGH WEDNESDAY/... FOLLOWED HPC PRELIM GUIDANCE FOR THIS TIME FRAME...WHICH BRINGS HEAT/HUMIDITY BACK INTO THE AREA AND HEAT INDICES POSSIBLY REACHING 95 IN NYC ON MON...THEN A RELATIVELY DRY COLD FROPA LATER TUE AND NEAR NORMAL TEMPS ON WED. THE 05/12Z ECMWF INTRODUCES UNCERTAINTY AS TO WHEN OR EVEN IF THE FRONT ACTUALLY MAKES IT THROUGH...HOLDING OFF INSTEAD UNTIL TUE. IF THE LATTER SCENARIO PLAYS OUT...WOULD HAVE TO HOLD ON TO CHANCE POP MON-TUE FOR ANY POSSIBLE MCS COMPLEXES TRAVELING ALONG THE WARM FRONT/PERIPHERY OF THE HEAT RIDGE TO THE SOUTH. && .AVIATION /19Z WEDNESDAY THROUGH MONDAY/... SCATTERED SHOWERS WITH ISOLATED THUNDER NOW FORMING ALONG COLD FRONT AND SEA BREEZE BOUNDARIES. FEEL THAT COVERAGE OF TSTMS NOT HIGH ENOUGH TO HAVE A TEMPO TSRA IN TAFS...BUT FEEL THAT MOST LIKELY TIME PERIOD FOR A THUNDERSTORM WOULD OCCUR IN THE 21Z- 23Z TIME FRAME FOR THE CITY TERMINALS WITH THE COLD FRONT...WITH SHRA POSSIBILITY STARTING ABOUT AN HOUR EARLIER. MVFR IN SHOWERS...OTHERWISE VFR PREVAILING...MODERATE TO HIGH CONFIDENCE IN THIS. NOT ENOUGH CONFIDENCE IN SHRA ON THURSDAY TO INCLUDE IN TAFS AT THIS TIME. MODERATE CONFIDENCE IN WIND FORECAST THROUGH THE REST OF AFTERNOON...THEN MODERATE TO HIGH CONFIDENCE THEREAFTER. OUTLOOK FOR 18Z THURSDAY THROUGH MONDAY... THU PM: VFR PROBABLE. LOW CHC TSTMS. FRI: VFR. SAT: VFR. SUB VFR AND TSTMS POSSIBLE PM. SUN: VFR PROBABLE. LOW CHC OF TSTM. MON: VFR PROBABLE. LOW CHC OF TSTM. && .MARINE... CONDITIONS BELOW SCA THRESHOLDS ARE EXPECTED THROUGH THE PERIOD. A COLD FRONT WILL PUSH ACROSS THE AREA WATERS THIS EVENING THROUGH TONIGHT. A WEAK AREA OF LOW PRESSURE WILL PASS ACROSS THE WATERS THU MORNING....FOLLOWED BY ANOTHER LOW FRI MORNING. SHOWERS AND TSTMS WILL DEVELOP ON THE WATERS THIS EVENING...AND WILL BE CAPABLE OF WIND GUSTS OVER 35 KT AND HEAVY RAIN. TSTMS TAPER OFF BY MIDNIGHT. ANOTHER ROUND OF SHOWERS/TSTMS POSSIBLE THU AFTERNOON. && .HYDROLOGY... SCATTERED TSTMS LATE THIS AFTERNOON HAVE HAD RAINFALL RATES OF 1-2 INCHES/HOUR...AND WILL HAVE TO BE MONITORED FOR LOCALIZED/URBAN FLOODING IMPACTS...ESPECIALLY WITH THE RELATIVELY SLOW FORWARD MOTION OF THE CURRENT CELLS. THERE IS ALSO A SMALL POTENTIAL FOR FLOODING ISSUES THIS WEEKEND INTO EARLY NEXT WEEK...WITH WARM FRONT TO THE SOUTH AND POSSIBLE MCS ACTIVITY RIDING ALONG IT. && .OKX WATCHES/WARNINGS/ADVISORIES... CT...NONE. NY...NONE. NJ...NONE. MARINE...NONE. && SYNOPSIS/NEAR TERM/SHORT TERM/LONG TERM/HYDROLOGY...GOODMAN AVIATION...JC MARINE...BC
HAZARDOUS WEATHER OUTLOOK...CORRECTED NATIONAL WEATHER SERVICE NEW YORK NY 446 AM EDT WED AUG 5 2009 CTZ005>012-NJZ002>006-011-NYZ067>074-078-079-061000- 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)-NORTHWESTERN SUFFOLK-NORTHEASTERN SUFFOLK- 446 AM EDT WED AUG 5 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHERN CONNECTICUT...NORTHEAST NEW JERSEY AND SOUTHEAST NEW YORK. .DAY ONE...TODAY AND TONIGHT. THUNDERSTORM DEVELOPMENT IS EXPECTED THIS AFTERNOON AND EVENING. SOME STORMS WILL HAVE THE POTENTIAL TO BECOME SEVERE...WITH DAMAGING WINDS THE MAIN THREAT. IN ADDITION TO THE SEVERE POTENTIAL...A HUMID AIRMASS WILL ALLOW FOR LOCALLY HEAVY RAIN. AREAS OF URBAN AND SMALL STREAM FLOODING CAN BE EXPECTED IN THE HEAVIEST ACTIVITY. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY THE POTENTIAL EXISTS FOR APPARENT TEMPERATURES TO REACH INTO THE UPPER 90S TO NEAR 100 DEGREES ON MONDAY. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES. && 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>077-080-081-061000- KINGS (BROOKLYN)-QUEENS-NASSAU-SOUTHWESTERN SUFFOLK- SOUTHEASTERN SUFFOLK- 446 AM EDT WED AUG 5 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST NEW YORK. .DAY ONE...TODAY AND TONIGHT. THERE IS A MODERATE RISK FOR RIP CURRENTS ALONG OCEAN BEACHES. THUNDERSTORM DEVELOPMENT IS EXPECTED THIS AFTERNOON AND EVENING. SOME STORMS WILL HAVE THE POTENTIAL TO BECOME SEVERE...WITH DAMAGING WINDS THE MAIN THREAT. IN ADDITION TO THE SEVERE POTENTIAL...A HUMID AIRMASS WILL ALLOW FOR LOCALLY HEAVY RAIN. AREAS OF URBAN AND SMALL STREAM FLOODING CAN BE EXPECTED IN THE HEAVIEST ACTIVITY. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY THE POTENTIAL EXISTS FOR APPARENT TEMPERATURES TO REACH INTO THE UPPER 90S TO NEAR 100 DEGREES ON MONDAY. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES. && 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. ANZ330-335-338-340-345-350-353-355-061000- 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- 446 AM EDT WED AUG 5 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR ATLANTIC COASTAL WATERS. .DAY ONE...TODAY AND TONIGHT. STRONG THUNDERSTORMS CAPABLE OF PRODUCING WIND GUSTS IN EXCESS OF 35 KNOTS ARE POSSIBLE THIS AFTERNOON AND EVENING. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME THAT WOULD MEET NATIONAL WEATHER SERVICE WARNING CRITERIA. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES. && 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. JMC
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NEW YORK NY 302 PM EDT WED AUG 5 2009 NJZ002-003-NYZ069-070-052000- BERGEN-NORTHERN WESTCHESTER-ROCKLAND-WESTERN PASSAIC- 302 PM EDT WED AUG 5 2009 ...STRONG THUNDERSTORMS WILL IMPACT NORTHWESTERN BERGEN...PASSAIC... ROCKLAND AND WESTCHESTER COUNTIES... AT 301 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM HAVERSTRAW TO 11 MILES WEST OF BEATTYESTOWN...OR ALONG A LINE EXTENDING FROM HAVERSTRAW TO 21 MILES WEST OF SUCCASUNNA-KENVIL...AND MOVING EAST AT 15 MPH. THESE STORMS WILL BE... NEAR HAVERSTRAW BY 320 PM. NEAR SUFFERN BY 325 PM. NEAR NEW CITY BY 330 PM. NEAR MONSEY BY 340 PM. NEAR BLOOMINGDALE BY 345 PM. NEAR MOUNT KISCO BY 355 PM. FREQUENT CLOUD TO GROUND LIGHTNING...SMALL HAIL...AND WINDS UP TO 40 MPH ARE EXPECTED WITH THESE STORMS. IN ADDITION...VERY HEAVY RAIN...WITH RAINFALL RATES OF UP TO ONE TO ONE AND A HALF INCHES AN HOUR...IS OCCURRING WITH THESE STORMS. THIS COULD CAUSE PONDING OF WATER ON ROADWAYS...AND MINOR FLOODING OF POOR DRAINAGE AREAS. LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS. REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING. MOVE TO SAFE SHELTER IMMEDIATELY. JM/PFM
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NEW YORK NY 334 PM EDT WED AUG 5 2009 CTZ009-NJZ003>006-NYZ071>073-052015- BERGEN-BRONX-EASTERN PASSAIC-ESSEX-HUDSON-NEW YORK (MANHATTAN)-SOUTHERN FAIRFIELD-SOUTHERN WESTCHESTER- 334 PM EDT WED AUG 5 2009 ...STRONG THUNDERSTORMS WILL IMPACT BERGEN...BRONX...ESSEX... HUDSON...NEW YORK (MANHATTAN)...PASSAIC...SOUTHERN FAIRFIELD AND WESTCHESTER COUNTIES... AT 332 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM TAPPAN TO DOVER... AND MOVING EAST AT 25 MPH. PEOPLE IN BERGEN...BRONX...ESSEX...HUDSON...NEW YORK (MANHATTAN)... PASSAIC...SOUTHERN FAIRFIELD AND WESTCHESTER COUNTIES...INCLUDING HAWTHORNE...RIDGEWOOD...WAYNE...NORWOOD...FAIRFIELD...MILLBURN... PARAMUS...ORADELL...PATERSON AND CALDWELL...SHOULD MONITOR THE WEATHER SITUATION CLOSELY. FREQUENT CLOUD TO GROUND LIGHTNING...SMALL HAIL...AND WINDS UP TO 40 MPH ARE EXPECTED WITH THESE STORMS. IN ADDITION...VERY HEAVY RAIN...WITH RAINFALL RATES OF UP TO ONE AND A HALF INCHES AN HOUR...IS OCCURRING WITH THESE STORMS. THIS COULD CAUSE PONDING OF WATER ON ROADWAYS... AND MINOR FLOODING OF POOR DRAINAGE AREAS. LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS. REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING. MOVE TO SAFE SHELTER IMMEDIATELY. JM/PFM
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NEW YORK NY 338 PM EDT WED AUG 5 2009 CTZ005-006-052030- NORTHERN FAIRFIELD-NORTHERN NEW HAVEN- 338 PM EDT WED AUG 5 2009 ...STRONG THUNDERSTORMS WILL IMPACT FAIRFIELD AND WESTERN NEW HAVEN COUNTIES... AT 338 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM SOUTHBURY TO DANBURY...AND MOVING EAST AT 10 MPH. PEOPLE IN FAIRFIELD AND WESTERN NEW HAVEN COUNTIES...INCLUDING DANBURY...NEWTOWN...BETHEL...NAUGATUCK AND BEACON FALLS...SHOULD MONITOR THE WEATHER SITUATION CLOSELY. LISTEN FOR POSSIBLE WARNINGS AND BE PREPARED TO TAKE APPROPRIATE ACTION SHOULD SEVERE WEATHER THREATEN. FREQUENT CLOUD TO GROUND LIGHTNING...SMALL HAIL...AND WINDS UP TO 40 MPH ARE EXPECTED WITH THESE STORMS. LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS. REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING. MOVE TO SAFE SHELTER IMMEDIATELY. JM/PFM
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NEW YORK NY 339 PM EDT WED AUG 5 2009 CTZ005-006-052030- NORTHERN FAIRFIELD-NORTHERN NEW HAVEN- 339 PM EDT WED AUG 5 2009 ...STRONG THUNDERSTORMS WILL IMPACT FAIRFIELD AND WESTERN NEW HAVEN COUNTIES... AT 338 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM SOUTHBURY TO DANBURY...AND MOVING EAST AT 10 MPH. PEOPLE IN FAIRFIELD AND WESTERN NEW HAVEN COUNTIES...INCLUDING DANBURY...NEWTOWN...BETHEL...NAUGATUCK AND BEACON FALLS...SHOULD MONITOR THE WEATHER SITUATION CLOSELY. FREQUENT CLOUD TO GROUND LIGHTNING...SMALL HAIL...AND WINDS UP TO 40 MPH ARE EXPECTED WITH THESE STORMS. LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS. REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING. MOVE TO SAFE SHELTER IMMEDIATELY. JM/PFM
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NEW YORK NY 356 PM EDT WED AUG 5 2009 CTZ005-006-009-010-052100- NORTHERN FAIRFIELD-NORTHERN NEW HAVEN-SOUTHERN FAIRFIELD-SOUTHERN NEW HAVEN- 356 PM EDT WED AUG 5 2009 ...STRONG THUNDERSTORM WILL IMPACT FAIRFIELD AND NEW HAVEN COUNTIES... AT 355 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR MILFORD...AND MOVING NORTHEAST AT 15 MPH. THIS STORM WILL BE... NEAR SHELTON BY 405 PM. NEAR ORANGE BY 410 PM. NEAR NEW HAVEN BY 430 PM. NEAR HAMDEN BY 445 PM. NEAR NORTH HAVEN BY 455 PM. NEAR WALLINGFORD BY 500 PM. FREQUENT CLOUD TO GROUND LIGHTNING...SMALL HAIL...AND WINDS UP TO 40 MPH ARE EXPECTED WITH THIS STORM. IN ADDITION...VERY HEAVY RAIN...WITH RAINFALL RATES OF UP TO ONE AND A HALF INCHES AN HOUR...IS OCCURRING WITH THIS STORM. THIS COULD CAUSE PONDING OF WATER ON ROADWAYS... AND MINOR FLOODING OF POOR DRAINAGE AREAS. LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS. REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING. MOVE TO SAFE SHELTER IMMEDIATELY. JM/PFM
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NEW YORK NY 411 PM EDT WED AUG 5 2009 NJZ003-005-006-NYZ071>073-076-077-052100- BERGEN-BRONX-ESSEX-HUDSON-NASSAU-NEW YORK (MANHATTAN)-QUEENS-SOUTHERN WESTCHESTER- 411 PM EDT WED AUG 5 2009 ...STRONG THUNDERSTORMS WILL IMPACT BRONX...HUDSON...NEW YORK (MANHATTAN)...NORTHERN ESSEX...NORTHWESTERN NASSAU...QUEENS... SOUTHEASTERN BERGEN AND WESTCHESTER COUNTIES... AT 411 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM NEW ROCHELLE TO MOTT HAVEN TO LYNDHURST...AND MOVING SOUTHEAST AT 15 MPH. INTENSE CLOUD TO GROUND LIGHTNING...SMALL HAIL...AND WINDS UP TO 40 MPH ARE EXPECTED WITH THESE STORMS. IN ADDITION...VERY HEAVY RAIN...WITH RAINFALL RATES OF UP TO ONE INCH AN HOUR...IS OCCURRING WITH THESE STORMS. THIS COULD CAUSE PONDING OF WATER ON ROADWAYS... AND POSSIBLY MINOR FLOODING OF POOR DRAINAGE AREAS. LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS. REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING. MOVE TO SAFE SHELTER IMMEDIATELY. JM/PFM
The Brookhaven radar (KOKX), 65 km away, was scanning. The volume nearest the first event began at 20:37 UTC.
2 thunderstorm wind. Local standard time, as filed.
Numerous tree limbs and power lines were reported down throughout the town of Glenn Cove.
One tree was reported down in Oyster Bay Cove.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in New York in 2009Every state in 2009This day in weather historyWarnings in New York, August 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: 194807, 194808.