Alert archive / New Jersey / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 26, NWS New York, NY

July 21, 2015Bergen County, Passaic County, New Jersey; Orange County, Rockland County, New York

NWS New York, NY issued this severe thunderstorm warning at Jul 21, 2015, 6:00 PM EDT for Bergen County, Passaic County, New Jersey; Orange County, Rockland County, New York. It was in force for 30 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Jul 21, 2015, 6:00 PM EDT (22:00 UTC)
Expired: Jul 21, 2015, 6:30 PM EDT
In force: 30 min
Issued by: NWS New York, NY
Area: Storm-based polygon

Counties Bergen County, NJ, Passaic County, NJ, Orange County, NY, Rockland County, NY

The radar

The Philadelphia radar (KDIX), 125 km from the middle of the area, began a volume at 22:03 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

Time	Report	Where	Remark
Jul 21, 6:40 PM EDT	HAIL 1	Nanuet, NY

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 10.0 hours before the alert went out and 129 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 298 J/kg
Mixed-layer CIN: -53 J/kg
Mixed-layer LCL: 1331 m above ground
0-6 km bulk shear: 44 kt
0-1 km storm-relative helicity: 19 m²/s²
0-3 km storm-relative helicity: 87 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

824 
WUUS51 KOKX 212200
SVROKX
NJC003-031-NYC071-087-212230-
/O.NEW.KOKX.SV.W.0026.150721T2200Z-150721T2230Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NEW YORK NY
600 PM EDT TUE JUL 21 2015

THE NATIONAL WEATHER SERVICE IN UPTON NY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  PASSAIC COUNTY IN NORTHEASTERN NEW JERSEY...
  NORTHWESTERN BERGEN COUNTY IN NORTHEASTERN NEW JERSEY...
  ROCKLAND COUNTY IN SOUTHEASTERN NEW YORK...
  SOUTH CENTRAL ORANGE COUNTY IN SOUTHEASTERN NEW YORK...

* UNTIL 630 PM EDT

* AT 600 PM EDT...DOPPLER RADAR INDICATED A LINE OF SEVERE
  THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE HAIL AND DAMAGING
  WINDS IN EXCESS OF 60 MPH. THESE STORMS WERE LOCATED ALONG A LINE
  EXTENDING FROM NEAR UPPER GREENWOOD LAKE TO HAMBURG...AND MOVING
  SOUTHEAST AT 20 MPH.

* SEVERE THUNDERSTORMS WILL BE NEAR...
  WARWICK AND UPPER GREENWOOD LAKE AROUND 605 PM EDT.
  GREENWOOD LAKE AROUND 615 PM EDT.
  RINGWOOD AROUND 625 PM EDT.
  WEST MILFORD...RAMSEY...SUFFERN...SLOATSBURG...BLOOMINGDALE...
  BUTLER AND POUGHKEEPSIE--NEWBURGH AROUND 630 PM EDT.

OTHER LOCATIONS IMPACTED BY THESE SEVERE THUNDERSTORMS INCLUDE
HILLBURN...AIRMONT...UPPER SADDLE RIVER...WEST NYACK...VIOLA...NEW
HEMPSTEAD...VALLEY COTTAGE...SPRING VALLEY...WANAQUE AND HILLCREST.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS...DESTRUCTIVE HAIL...
DEADLY LIGHTNING AND VERY HEAVY RAIN. FOR YOUR PROTECTION...MOVE TO
AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. HEAVY
RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO AREAS WHERE WATER
COVERS THE ROAD.

TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THESE STORMS...AND MAY
LEAD TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.

&&

LAT...LON 4107 7449 4109 7450 4120 7437 4124 7445
      4126 7439 4110 7389 4099 7429 4100 7430
      4100 7435 4101 7435 4101 7439 4103 7442
      4102 7443 4104 7443 4105 7445 4104 7450
TIME...MOT...LOC 2200Z 300DEG 19KT 4121 7441 4116 7460 

$$

MALOIT

1 follow-up statement

912 
WWUS51 KOKX 212227
SVSOKX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NEW YORK NY
627 PM EDT TUE JUL 21 2015

NJC003-031-NYC071-087-212237-
/O.EXP.KOKX.SV.W.0026.000000T0000Z-150721T2230Z/
PASSAIC NJ-BERGEN NJ-ROCKLAND NY-ORANGE NY-
627 PM EDT TUE JUL 21 2015

...THE SEVERE THUNDERSTORM WARNING FOR PASSAIC...NORTHWESTERN
BERGEN...ROCKLAND AND SOUTH CENTRAL ORANGE COUNTIES WILL EXPIRE AT
630 PM EDT...
            
THE STORMS WHICH PROMPTED THE WARNING HAVE WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY.
THEREFORE THE WARNING WILL BE ALLOWED TO EXPIRE.

LAT...LON 4107 7449 4109 7450 4120 7437 4124 7445
      4126 7439 4110 7389 4099 7429 4100 7430
      4100 7435 4101 7435 4101 7439 4103 7442
      4102 7443 4104 7443 4105 7445 4104 7450
TIME...MOT...LOC 2226Z 300DEG 19KT 4121 7441 4116 7460 

$$

MALOIT

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, 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 this severe thunderstorm warning went out at Jul 21, 3:35 PM EDT, 2 hours 25 minutes earlier.

Area forecast discussion, Jul 21, 3:35 PM EDT, 2 hours 25 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NEW YORK NY
335 PM EDT TUE JUL 21 2015

.SYNOPSIS...
A COLD FRONT WILL MOVE ACROSS THE REGION THIS EVENING. A BROAD
AREA OF HIGH PRESSURE SLOWLY BUILDS EAST LATE TONIGHT THROUGH
SATURDAY...THEN SLOWLY SLIDES OFFSHORE FOR THE REMAINDER OF THE
WEEKEND. MEANWHILE...A SLOW MOVING AND WEAKENING FRONTAL SYSTEM
SLOWLY APPROACHES FROM THE WEST SUNDAY-MONDAY...BEFORE SLIDING TO
THE EAST BY TUESDAY. HIGH PRESSURE BUILDS IN BEHIND THIS SYSTEM
INTO THE MIDDLE OF NEXT WEEK.

&&

.NEAR TERM /UNTIL 6 AM WEDNESDAY MORNING/...
A NEARLY STATIONARY FRONT REMAINS JUST SOUTH OF LONG ISLAND THIS
AFTERNOON. SOME SPOTTY LIGHT RAIN SHOWERS CONTINUES TO FALL ALONG
THE FRONT. WILL CONTINUE TO CARRY SLIGHT CHANCE POPS FOR THESE
SHOWERS.

A COLD FRONT WEST OF THE REGION WILL APPROACH LATE THIS AFTERNOON
AND MOVE ACROSS THE REGION EARLY TONIGHT. THIS COLD FRONT WILL BRING
A BETTER CHANCE OF SHOWERS AND THUNDERSTORMS. BEST CHANCE OF SHOWERS
AND STORMS WILL BE BETWEEN 21Z-04Z. MAIN QUESTION IS...DESPITE THE
WARM AND HUMID AIRMASS...HOW MUCH OF A LIMITING FACTOR WILL THE
CLOUD COVER BE FOR THUNDERSTORM DEVELOPMENT. THERE ARE SOME BREAKS
IN THE CLOUDS NORTH AND WEST OF NYC. BIGGER QUESTION WILL BE CLOSER
TO THE COAST. WILL CARRY CHANCE POPS IN THE FORECAST FOR NOW...WITH
THE POTENTIAL THAT AN ISOLATED STRONGER STORM WILL DEVELOP AND
PRODUCE SOME GUSTY WINDS.

THE COLD FRONT MOVES THROUGH AROUND OR SHORTLY AFTER MIDNIGHT WITH
DRIER AIR AND ANY PRECIPITATION ENDS.

LOWS TONIGHT WILL FALL INTO THE UPPER 50S AND 60S. USED A MAV/MET
BLEND FOR TEMPERATURES TONIGHT.

&&

.SHORT TERM /6 AM WEDNESDAY MORNING THROUGH FRIDAY/...
ON WEDNESDAY...AN UPPER TROUGH WITH A CLOSED LOW WILL REMAIN OVER
EASTERN CANADA AND THE NORTHEAST. A DEEP WEST TO NORTHWEST FLOW WILL
PREVAIL THROUGH THE DAY AS HEIGHTS SLOWLY RISE. AT THE SURFACE...
HIGH PRESSURE WILL SLOWLY BUILD EASTWARD. TEMPERATURES WILL CLIMB
INTO THE 80S...AND WITH DEW POINTS 50S...IT WILL FEEL QUITE
COMFORTABLE.

SURFACE HIGH PRESSURE WILL REMAIN IN PLACE THURSDAY AND FRIDAY WILL
DRY CONDITIONS. TEMPERATURES BOTH DAYS WILL BE IN THE 80S. WITH DEW
POINTS REMAINING IN THE 50S...THE COMFORTABLE CONDITIONS WILL
CONTINUE. EXPECT MOSTLY SUNNY SKIES THROUGH THE ENTIRE SHORT TERM
PERIOD. LOWS AT NIGHT WILL FALL INTO THE 50S AND 60S.

THERE IS A MODERATE RISK FOR RIP CURRENTS AT OCEAN BEACHES ON
WEDNESDAY.

&&

.LONG TERM /FRIDAY NIGHT THROUGH TUESDAY/...
NORTHERN STREAM RIDGING BUILDS OVER THE AREA FRIDAY NIGHT AND
SATURDAY...WITH ASSOCIATED SUBSIDENCE KEEPING THINGS DRY. AS THE
RIDGE AXIS SLIDES TO THE EAST SATURDAY NIGHT...A PASSING SHORTWAVE
COULD TRIGGER AN ISOLATED SHOWER AND/OR THUNDERSTORM OVER FAR W
ORANGE COUNTY LATE SATURDAY NIGHT.

A PASSING NORTHERN STREAM SHORTWAVE IS SUFFICIENT CAUSE FOR CHANCE
POPS FOR SHOWERS AND THUNDERSTORMS ON SUNDAY OVER THE NW 1/2 OF THE
CWA AND SLIGHT CHANCE POPS SE...AS THE BEST FORCING IS EXPECTED TO
BE MAINLY TO THE N/W OF NYC.

A NORTHERN STREAM TROUGH THAT APPROACHES SUNDAY NIGHT...THEN SLOWLY
PASSES MONDAY/MONDAY NIGHT GIVES REASON FOR CHANCE POPS FOR
SHOWERS AND THUNDERSTORMS DURING THAT TIME FRAME.

THERE IS SOME DISAGREEMENT AMONG THE MODELS ON HOW SHARP THE
NORTHERN STREAM TROUGH WILL BE...AND HENCE HOW LONG IT WILL LINGER
OVER THE AREA. THE GFS IS SHARPER/LESS PROGRESSIVE AND THE ECMWF
WEAKER/QUICKER TO BUILD IN RIDGING BEHIND THE TROUGH. FOR NOW...JUST
HAVE SLIGHT CHANCE POPS IN ON TUESDAY TO REFLECT THIS DISAGREEMENT.

FOR TEMPERATURES FRIDAY NIGHT-TUESDAY A BLEND OF
MEX/MEN/EKD/ECE/ECM/WPC GUIDANCE WAS USED. FOR NOW...EXPECT
TEMPERATURES TO BE WITHIN A FEW DEGREES OF EITHER SIDE OF NORMAL IN
THIS TIME FRAME.

&&

.AVIATION /20Z TUESDAY THROUGH SUNDAY/...
A FEW SHOWERS HAVE POPPED UP JUST WEST OF THE CITY
TERMINALS...WITH KTEB MOST LIKELY TO BE IMPACTED PRIOR TO 21Z.
OTHERWISE...SHRA/TSRA WILL DEVELOP AS COLD FRONT APPROACHES FROM
THE WEST...WITH BEST CHANCES FROM 21-01Z OVER WESTERN TERMINALS
AND FROM 22-02Z OVER EASTERN TERMINALS. WILL USE A TEMPO GROUP FOR
MVFR CONDS TO COVER THIS. OTHERWISE...VFR.

S-SW WINDS 10-15 KT WILL BECOME NW AFTER PASSAGE OF COLD FRONT
THIS EVENING...AND THEN WILL INCREASE BY EARLY WEDNESDAY
AFTERNOON.

 ...NY METRO ENHANCED AVIATION WEATHER SUPPORT...

DETAILED INFORMATION...INCLUDING HOURLY TAF WIND COMPONENT FCSTS
CAN BE FOUND AT: HTTP://WWW.ERH.NOAA.GOV/ZNY/N90 (LOWER CASE)

KJFK FCSTER COMMENTS: SCT SHRA/TSRA FROM 21-01Z.

KLGA FCSTER COMMENTS: SCT SHRA/TSRA FROM 21-01Z.

KEWR FCSTER COMMENTS: FEW GUSTS TO 20 KT POSSIBLE THIS AFTERNOON.
SCT SHRA/TSRA FROM 21-01Z.

KTEB FCSTER COMMENTS: SCT SHRA/TSRA FROM 21-01Z.

KHPN FCSTER COMMENTS: SW WINDS 5-10 KT WITH SEA BREEZE NOT LIKELY.
SCT SHRA/TSRA FROM 21-01Z.

KISP FCSTER COMMENTS: SCT SHRA/TSRA FROM 22-02Z.

.OUTLOOK FOR 18Z WEDNESDAY THROUGH SUNDAY.
.WEDNESDAY AFTERNOON...VFR. GUSTY NW WINDS.
.WEDNESDAY NIGHT...VFR WITH DIMINISHING WINDS.
.THURSDAY-SATURDAY...VFR.
.SUNDAY...MVFR OR LOWER POSSIBLE IN SCT SHRA/TSRA.

&&

.MARINE...
A COLD FRONT WILL MOVE ACROSS THE WATERS LATE THIS EVENING. THERE
WILL BE A CHANCE FOR SCATTERED SHOWERS AND THUNDERSTORMS WITH THE
FRONTAL PASSAGE. HIGH PRESSURE WILL BUILD INTO THE REGION BEHIND THE
COLD FRONT LATE TONIGHT INTO WEDNESDAY. WINDS AND SEAS WILL
GENERALLY REMAIN BELOW SMALL CRAFT LEVELS THROUGH FRIDAY. THERE IS A
CHANCE A FEW GUSTS TO  25KT COULD DEVELOP THURSDAY NIGHT ON THE
OCEAN IN SOUTHWEST FLOW. SEAS MAY ALSO BUILD TO 3-4 FT.

A RELAXED PRESSURE GRADIENT OVER THE REGION WILL KEEP WINDS TO 10 KT
OR LESS OVER THE WATERS FROM FRIDAY NIGHT INTO SUNDAY. THE SEABREEZE
COULD INCREASE WINDS OVER THE COASTAL OCEAN WATERS...NY HARBOR AND
THE S SHORE BAYS OF LONG ISLAND TO UP TO 15 KT SUNDAY
AFTERNOON/EVENING. WITH WINDS FORECAST TO BE LIGHT...WAVES/SEAS WILL
REMAIN BELOW SCA THRESHOLDS FRIDAY NIGHT-SUNDAY AS WELL.

&&

.HYDROLOGY...
NO SIGNIFICANT PRECIPITATION IS EXPECTED THROUGH SATURDAY EVENING.

WHILE IT WILL NOT RAIN THE ENTIRE TIME FROM SUNDAY-MONDAY
NIGHT...THERE IS THE POTENTIAL FOR SIGNIFICANT RAINFALL DURING THIS
TIME FRAME. THERE IS ALSO THE POSSIBILITY OF LOCALLY HEAVY RAINFALL
FROM ANY STRONGER CONVECTION DURING THIS TIME FRAME. IF/WHEN THE
LOCALLY HEAVY RAINFALL OCCURS...THERE WILL BE THE POSSIBILITY OF
MINOR URBAN/POOR DRAINAGE FLOODING SUNDAY-MONDAY NIGHT.

&&

.OKX WATCHES/WARNINGS/ADVISORIES...
CT...NONE.
NY...NONE.
NJ...NONE.
MARINE...NONE.

&&

SYNOPSIS...BC
NEAR TERM...BC
SHORT TERM...BC
LONG TERM...MALOIT
AVIATION...MPS
MARINE...BC/MALOIT
HYDROLOGY...BC/MALOIT

Hazardous weather outlook, Jul 21, 3:13 AM EDT, 14 hours 47 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NEW YORK NY
313 AM EDT TUE JUL 21 2015

CTZ005>012-NJZ002-004-006-103>108-NYZ067>075-078>081-176>179-221000-
NORTHERN FAIRFIELD-NORTHERN NEW HAVEN-NORTHERN MIDDLESEX-
NORTHERN NEW LONDON-SOUTHERN FAIRFIELD-SOUTHERN NEW HAVEN-
SOUTHERN MIDDLESEX-SOUTHERN NEW LONDON-WESTERN PASSAIC-
EASTERN PASSAIC-HUDSON-WESTERN BERGEN-EASTERN BERGEN-WESTERN ESSEX-
EASTERN ESSEX-WESTERN UNION-EASTERN UNION-ORANGE-PUTNAM-ROCKLAND-
NORTHERN WESTCHESTER-SOUTHERN WESTCHESTER-NEW YORK (MANHATTAN)-BRONX-
RICHMOND (STATEN ISLAND)-KINGS (BROOKLYN)-NORTHWESTERN SUFFOLK-
NORTHEASTERN SUFFOLK-SOUTHWESTERN SUFFOLK-SOUTHEASTERN SUFFOLK-
NORTHERN QUEENS-NORTHERN NASSAU-SOUTHERN QUEENS-SOUTHERN NASSAU-
313 AM EDT TUE JUL 21 2015

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHERN
CONNECTICUT...NORTHEASTERN NEW JERSEY AND SOUTHEASTERN NEW YORK.

.DAY ONE...TODAY AND TONIGHT.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME THAT WOULD MEET
NATIONAL WEATHER SERVICE WARNING CRITERIA.

.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.

ANZ330-335-338-340-345-350-353-355-221000-
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-
313 AM EDT TUE JUL 21 2015

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE ATLANTIC COASTAL
WATERS...NEW YORK HARBOR...LONG ISLAND SOUND...AND THE LONG
ISLAND BAYS.

.DAY ONE...TODAY AND TONIGHT.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME THAT WOULD MEET
NATIONAL WEATHER SERVICE WARNING CRITERIA.

.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.

In the hours before

Special weather statement, Jul 21, 3:36 PM EDT, 2 hours 24 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NEW YORK NY
336 PM EDT TUE JUL 21 2015

NJZ002-004-103-105-212015-
EASTERN PASSAIC-WESTERN PASSAIC-WESTERN BERGEN-WESTERN ESSEX-
336 PM EDT TUE JUL 21 2015

...A DEVELOPING THUNDERSTORM WILL AFFECT NORTHWESTERN
ESSEX...CENTRAL PASSAIC AND NORTHWESTERN BERGEN COUNTIES...

AT 334 PM EDT...A STRONG THUNDERSTORM WAS OVER LAKE TELEMARK...OR 11
MILES NORTH OF MORRISTOWN...MOVING EAST AT 30 MPH.

WINDS IN EXCESS OF 40 MPH AND SMALL HAIL ARE POSSIBLE WITH THIS
STORM.

LOCATIONS IMPACTED INCLUDE...
PATERSON...PASSAIC...WAYNE...RIDGEWOOD...RAMSEY...POMPTON LAKES...
HAWTHORNE...BLOOMINGDALE...FAIRFIELD...CLIFTON...FAIR LAWN...ELMWOOD
PARK...WYCKOFF...LITTLE FALLS... OAKLAND...CEDAR GROVE...GLEN
ROCK...WANAQUE AND TOTOWA.

TORRENTIAL RAINFALL IS ALSO POSSIBLE WITH THIS STORM...AND MAY CAUSE
LOCALIZED FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.

THIS STORM MAY INTENSIFY...SO BE CERTAIN TO MONITOR LOCAL RADIO AND
TV STATIONS...AS WELL AS LOCAL CABLE TV OUTLETS...FOR ADDITIONAL
INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE.

LAT...LON 4106 7412 4091 7411 4089 7413 4086 7411
      4085 7412 4085 7432 4090 7433 4091 7429
      4091 7427 4093 7429 4097 7428 4098 7430
      4100 7430 4101 7439 4103 7442 4102 7443
      4104 7444 4104 7450 4105 7440
TIME...MOT...LOC 1934Z 269DEG 25KT 4095 7454

MALOIT

Special weather statement, Jul 21, 4:09 PM EDT, 1 hour 51 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NEW YORK NY
409 PM EDT TUE JUL 21 2015

NJZ004-006-103>106-212045-
HUDSON-EASTERN BERGEN-EASTERN ESSEX-EASTERN PASSAIC-EASTERN
BERGEN-WESTERN BERGEN-WESTERN ESSEX-HUDSON-
409 PM EDT TUE JUL 21 2015

...A STRONG THUNDERSTORM WILL AFFECT NORTHERN ESSEX...EASTERN
PASSAIC...HUDSON...NORTHERN BERGEN...ROCKLAND AND NEW YORK
COUNTIES...

AT 408 PM EDT...A STRONG THUNDERSTORM WAS OVER LINCOLN PARK...OR NEAR
WAYNE...MOVING EAST AT 30 MPH.

WINDS IN EXCESS OF 30 MPH AND SMALL HAIL ARE POSSIBLE WITH THIS
STORM.

THIS STORM WILL BE NEAR...
  PATERSON...BLOOMFIELD AND HAWTHORNE AROUND 420 PM EDT.
  PASSAIC AND RIDGEWOOD AROUND 425 PM EDT.
  PARAMUS...LYNDHURST AND RUTHERFORD AROUND 430 PM EDT.
  HACKENSACK...SECAUCUS...ORADELL AND TETERBORO AROUND 435 PM EDT.
  BERGENFIELD...RIDGEFIELD...UNION CITY AND ENGLEWOOD AROUND 440 PM
EDT.
  FORT LEE AROUND 445 PM EDT.

OTHER LOCATIONS IMPACTED BY THIS STORM INCLUDE HAWORTH...WYCKOFF...
MONTCLAIR...CLIFTON...BOGOTA...NUTLEY...ELMWOOD PARK...HARRINGTON
PARK...CRESSKILL AND TEANECK.

TORRENTIAL RAINFALL IS ALSO POSSIBLE WITH THIS STORM...AND MAY CAUSE
LOCALIZED FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.

THIS STORM MAY INTENSIFY...SO BE CERTAIN TO MONITOR LOCAL RADIO AND
TV STATIONS...AS WELL AS LOCAL CABLE TV OUTLETS...FOR ADDITIONAL
INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE.

LAT...LON 4081 7435 4082 7433 4085 7433 4086 7432
      4087 7434 4090 7433 4091 7429 4089 7428
      4090 7427 4091 7427 4093 7429 4095 7428
      4100 7428 4100 7390 4074 7402
TIME...MOT...LOC 2008Z 278DEG 25KT 4090 7427

MALOIT

Special weather statement, Jul 21, 4:17 PM EDT, 1 hour 43 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NEW YORK NY
417 PM EDT TUE JUL 21 2015

NYZ067-212045-
ORANGE-
417 PM EDT TUE JUL 21 2015

...A DEVELOPING THUNDERSTORM WILL AFFECT SOUTHERN ORANGE COUNTY...

AT 416 PM EDT...A STRONG THUNDERSTORM WAS NEAR VERNON VALLEY...OR
NEAR WARWICK...MOVING EAST AT 20 MPH.

WINDS IN EXCESS OF 40 MPH AND SMALL HAIL ARE POSSIBLE WITH THIS
STORM.

LOCATIONS IMPACTED INCLUDE...
MIDDLETOWN...MONROE...WARWICK...GOSHEN...CHESTER...GREENWOOD LAKE...
FLORIDA...HARRIMAN...KIRYAS JOEL...WASHINGTONVILLE AND TUXEDO PARK.

TORRENTIAL RAINFALL IS ALSO POSSIBLE WITH THIS STORM...AND MAY CAUSE
LOCALIZED FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.

THIS STORM MAY INTENSIFY...SO BE CERTAIN TO MONITOR LOCAL RADIO AND
TV STATIONS...AS WELL AS LOCAL CABLE TV OUTLETS...FOR ADDITIONAL
INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE.

LAT...LON 4139 7456 4145 7412 4120 7415 4115 7423
      4117 7430 4129 7455
TIME...MOT...LOC 2016Z 267DEG 19KT 4131 7446

MALOIT

Special weather statement, Jul 21, 5:15 PM EDT, 45 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NEW YORK NY
515 PM EDT TUE JUL 21 2015

NJZ002-103-NYZ067>070-212200-
WESTERN PASSAIC-WESTERN BERGEN-NORTHERN
WESTCHESTER-ORANGE-ROCKLAND-PUTNAM-
515 PM EDT TUE JUL 21 2015

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT CENTRAL PASSAIC...
NORTHWESTERN BERGEN...ROCKLAND...PUTNAM...NORTHERN WESTCHESTER AND
SOUTHEASTERN ORANGE COUNTIES...

AT 515 PM EDT...A LINE OF STRONG THUNDERSTORMS WAS ALONG A LINE
EXTENDING FROM NEAR HARRIMAN TO UPPER GREENWOOD LAKE...AND MOVING
EAST AT 25 MPH.

WINDS IN EXCESS OF 40 MPH AND HALF INCH HAIL ARE POSSIBLE WITH THESE
STORMS.

THESE STORMS WILL BE NEAR...
  MONROE AND HARRIMAN AROUND 520 PM EDT.
  WEST POINT AROUND 535 PM EDT.
  PEEKSKILL AND SLOATSBURG AROUND 540 PM EDT.
  SUFFERN AROUND 545 PM EDT.
  MONSEY...POMONA AND YORKTOWN HEIGHTS AROUND 555 PM EDT.
  HAVERSTRAW...NEW CITY...MAHOPAC AND NANUET AROUND 600 PM EDT.

OTHER LOCATIONS IMPACTED BY THESE STORMS INCLUDE AIRMONT...WEST
HAVERSTRAW...UPPER SADDLE RIVER...HIGHLAND MILLS...SPRING VALLEY...
THIELLS...CHESTNUT RIDGE...CROTONOON-HUDSON...HILLBURN AND PEACH
LAKE.

TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THESE STORMS...AND MAY
CAUSE LOCALIZED FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.

THESE STORMS MAY INTENSIFY...SO BE CERTAIN TO MONITOR LOCAL RADIO AND
TV STATIONS...AS WELL AS LOCAL CABLE TV OUTLETS...FOR ADDITIONAL
INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE.

LAT...LON 4120 7437 4124 7443 4139 7408 4140 7354
      4133 7355 4105 7408 4114 7444
TIME...MOT...LOC 2115Z 270DEG 22KT 4128 7411 4120 7440

MALOIT

The office that day

Everything else NWS New York, NY issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 21, 3:36 PM EDT	Special Weather Statement	OKX	Passaic	39 min
Jul 21, 4:09 PM EDT	Special Weather Statement	OKX	Bergen	36 min
Jul 21, 6:33 PM EDT	Special Weather Statement	OKX	Bergen, Essex, Passaic	42 min
Jul 21, 6:37 PM EDT	Severe Thunderstorm Warning	OKX	Bergen	23 min
Jul 21, 7:05 PM EDT	Special Weather Statement	OKX	Bergen, Essex, Hudson	40 min
Jul 20, 8:48 PM EDT	Special Weather Statement	OKX	Nassau	42 min
Jul 21, 4:17 PM EDT	Special Weather Statement	OKX	Orange	28 min
Jul 21, 4:27 PM EDT	Severe Thunderstorm Warning	OKX	Orange	48 min
Jul 21, 5:15 PM EDT	Special Weather Statement	OKX	Rockland	45 min
Jul 21, 6:10 PM EDT	Special Weather Statement	OKX	Putnam, Rockland, Westchester	35 min
Jul 21, 7:06 PM EDT	Special Marine Warning	OKX		54 min

Nearby

Severe Thunderstorm Warnings in New Jersey, 2015 Severe Thunderstorm Warnings in New York, 2015 Every severe thunderstorm warning in 2015

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.