Alert archive / New York / Flash Flood Warnings in 2011

Flash Flood Warning 26, NWS New York, NY

August 19, 2011Orange County, New York

NWS New York, NY issued this flash flood warning at Aug 19, 2011, 4:28 PM EDT for Orange County, New York. It was in force for 2 hr. 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
Aug 19, 2011, 4:28 PM EDT (20:28 UTC)
Expired
Aug 19, 2011, 6:53 PM EDT
In force
2 hr
Issued by
NWS New York, NY
Area
Storm-based polygon
Flood severity
None

County Orange County, NY

The radar

The Brookhaven radar (KOKX), 129 km from the middle of the area, began a volume at 20:31 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

TimeReportWhereRemark
Aug 19, 5:30 PM EDTFLASH FLOODWarwick, NYCASCADE ROAD...JERSEY AVENUE...BELLVALE-LAKES ROAD...STATE SCHOOL ROAD...AND BULL DUTCH ROAD CLOSED DUE TO FLOODING. A MUDSLIDE WAS ALSO REPORTED ON CASCADE ROAD.

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

Did it verify

Verified. The Iowa Environmental Mesonet's Cow matched one storm report to this flash flood warning; the first came 62 minutes after it went out.

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, 8.5 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-pSkew-T log-p diagram, Brookhaven, NY at 12:00Z on 2011-08-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 897 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Brookhaven, NY at 12:00Z on 2011-08-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -12 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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
897 J/kg
Mixed-layer CIN
-66 J/kg
Mixed-layer LCL
993 m above ground
0-6 km bulk shear
14 kt
0-1 km storm-relative helicity
-12 m²/s²
0-3 km storm-relative helicity
23 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

498 
WGUS51 KOKX 192028
FFWOKX
NYC071-192200-
/O.NEW.KOKX.FF.W.0026.110819T2028Z-110819T2200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NEW YORK NY
428 PM EDT FRI AUG 19 2011

THE NATIONAL WEATHER SERVICE IN UPTON NY HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHERN ORANGE COUNTY IN SOUTHEAST NEW YORK...

* UNTIL 600 PM EDT...

* AT 422 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  FLASH FLOODING FROM A THUNDERSTORM OVER THE WARNED AREA. RAINFALL  
  RATES OF TO 2.5 INCHES PER HOUR HAS BEEN INDICATED WITH THESE      
  THUNDERSTORMS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. MOVE TO HIGHER GROUND.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE.

&&

LAT...LON 4138 7432 4128 7411 4120 7415 4114 7425
      4119 7435 4119 7438 4122 7443 4123 7444
      4126 7444

$$

JM
3 follow-up statements
627 
WGUS71 KOKX 192114
FFSOKX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE NEW YORK NY
514 PM EDT FRI AUG 19 2011

NYC071-192200-
/O.CON.KOKX.FF.W.0026.000000T0000Z-110819T2200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
ORANGE NY-
514 PM EDT FRI AUG 19 2011

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 600 PM EDT FOR SOUTH
CENTRAL ORANGE COUNTY...

AT 509 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A THUNDERSTORM PRODUCING FLASH FLOODING OVER THE WARNED 
AREA. TOTAL RAINFALL AMOUNTS ARE EXPECTED TO BE SEVERAL INCHES FROM 
THESE THUNDERSTORMS ACROSS SOUTHERN ORANGE COUNTY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FLOODING IS OCCURRING OR IS IMMINENT. MOST FLOOD RELATED DEATHS OCCUR
IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS WATER COVERED BRIDGES...
DIPS...OR LOW WATER CROSSINGS. NEVER TRY TO CROSS A FLOWING STREAM...
EVEN A SMALL ONE...ON FOOT. TO ESCAPE RISING WATER MOVE UP TO HIGHER
GROUND.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE.

&&

LAT...LON 4138 7432 4128 7411 4120 7415 4114 7425
      4119 7435 4119 7438 4122 7443 4123 7444
      4126 7444

$$

JM
286 
WGUS51 KOKX 192155
FFWOKX
NYC071-192330-
/O.EXT.KOKX.FF.W.0026.000000T0000Z-110819T2330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NEW YORK NY
555 PM EDT FRI AUG 19 2011

THE NATIONAL WEATHER SERVICE IN UPTON NY HAS EXTENDED THE

* FLASH FLOOD WARNING FOR...
  SOUTHERN ORANGE COUNTY IN SOUTHEAST NEW YORK...

* UNTIL 730 PM EDT...

* AT 552 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  FLASH FLOODING FROM A THUNDERSTORM OVER THE WARNED AREA. EVEN AS   
  RAINFALL IS DECREASING IN INTENSITY...THERE WILL LIKELY BE AREAS   
  WHICH HAVE EXPERIENCED FLOODING FROM THIS RAINFALL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FLOODING IS OCCURRING OR IS IMMINENT. MOST FLOOD RELATED DEATHS OCCUR
IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS WATER COVERED BRIDGES...
DIPS...OR LOW WATER CROSSINGS. NEVER TRY TO CROSS A FLOWING STREAM...
EVEN A SMALL ONE...ON FOOT. TO ESCAPE RISING WATER MOVE UP TO HIGHER
GROUND.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE.

&&

LAT...LON 4138 7432 4128 7411 4120 7415 4114 7425
      4119 7435 4119 7438 4122 7443 4123 7444
      4126 7444

$$

JM
547 
WGUS71 KOKX 192253
FFSOKX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE NEW YORK NY
653 PM EDT FRI AUG 19 2011

NYC071-192303-
/O.CAN.KOKX.FF.W.0026.000000T0000Z-110819T2330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
ORANGE NY-
653 PM EDT FRI AUG 19 2011

...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR SOUTH CENTRAL
ORANGE COUNTY...

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM EDT FRIDAY
EVENING FOR SOUTHERN CONNECTICUT AND NORTHEAST NEW JERSEY AND
SOUTHEAST NEW YORK.

LAT...LON 4138 7432 4128 7411 4120 7415 4114 7425
      4119 7435 4119 7438 4122 7443 4123 7444
      4126 7444

$$

MALOIT

What forecasters said that day

The local office's own words before this flash flood 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 flash flood warning went out at Aug 19, 3:48 PM EDT, 40 minutes earlier.

Area forecast discussion, Aug 19, 3:48 PM EDT, 40 minutes before
AREA FORECAST DISCUSSION...CORRECTED
NATIONAL WEATHER SERVICE NEW YORK NY
348 PM EDT FRI AUG 19 2011

.SYNOPSIS...
A TROUGH OF LOW PRESSURE MOVES INTO THE REGION TONIGHT...THEN
MOVES TO OUR EAST SATURDAY...FOLLOWED BY ANOTHER TROUGH OF LOW
PRESSURE APPROACHING FROM THE WEST SATURDAY NIGHT. A COLD FRONT
WILL APPROACH FROM THE GREAT LAKES SUNDAY...CROSSING THE AREA
SUNDAY NIGHT. HIGH PRESSURE BUILDS BACK INTO THE AREA MONDAY AND
REMAINS INTO MID WEEK. ANOTHER COLD FRONT APPROACHES THE REGION
LATE NEXT WEEK.

&&

.NEAR TERM /UNTIL 6 AM SATURDAY MORNING/...
AT 19Z CAPES ACROSS THE REGION RANGED FROM 1000-3000 J/KG -
HIGHEST LOWER HUDSON VALLEY/NE NJ...WITH OVER 1000 J/KG OF
DOWNDRAFT CAPE ACROSS THE LOWER HUDSON VALLEY/NE NJ AS WELL.
STORMS FIRING TO OUR W AND N HAVE ALREADY PRODUCED QUARTER TO
GOLFBALL SIZE HAIL. THE LARGE CAPES...COUPLED WITH REGION BEING
IN LEFT FRONT QUAD OF 50 KT UPPER JET...AND APPROACHING 500 HPA
SHORTWAVE TROUGH WARRANT CONTINUING SVR TSTM WATCH 791 ACROSS NE
NJ/LOWER HUDSON VALLEY/NYC/FAIRFIELD COUNTY AS IS UNTIL 9 PM. WITH
MINIMAL SHEAR - 10-15 KT BULK SHEAR VECTORS AND BRN > 100 - WILL
SEE MAINLY PULSE STORMS...BUT CANNOT RULE OUT A FEW MULTICELLULAR
CLUSTERS.

MAIN THREAT IS LARGE HAIL...BUT STILL COULD SEE SOME ISOLATED SVR
WIND GUSTS UNTIL LOSS OF SOLAR HEATING BY EARLY EVENING. OTHER
THREAT IS LOCALLY HEAVY RAINFALL DUE TO SLOW MOVEMENT OF STORMS
(10 KT OR LESS STORM MOTION VECTORS). SEE HYDRO SECTION FOR
DETAILS ON HEAVY RAINFALL THREAT.

CONVECTIVE THREAT WANES W/LOSS OF SOLAR HEATING AND PASSAGE OF
500 HPA SHORTWAVE TROUGH THIS EVENING...BRING POPS BELOW 15
OVERNIGHT FOR A DRY FORECAST THEN.

FOR LOWS TOOK A MAV/MET BLEND AND ADDED A DEGREE - WEIGHING
TOWARDS WARMER MET GUIDANCE...AS FAVOR SLOWER MET PROGRESSION OF
SFC TROUGH/LOWER DEWPOINT AIR BEHIND IT...GIVEN VERY WEAK LOW
LEVEL FLOW. GIVEN RELATIVELY MOIST LOW LEVELS...AND SOME SCT
DEBRIS CLOUDS...DO NOT THINK RADIATIONAL COOLING WILL BE
SIGNIFICANT...SO DOWNPLAYED GUIDANCE IDEA OF MAKING USUAL COOL
SPOTS THAT MUCH COOLER THAN SURROUNDING AREAS TONIGHT.

&&

.SHORT TERM /6 AM SATURDAY MORNING THROUGH SATURDAY NIGHT/...
WITH DECENT LOW TO MID LEVEL LAPSE RATES...AND 500-1500 J/KG OF
SFC BASED CAPE...HAVE THE THERMAL INGREDIENTS FOR SHRA/TSRA
SATURDAY. BUT ABSENT OTHER FORCING - SHOULD BE IN WAKE OF ANOTHER
500 HPA SHORTWAVE BY SATURDAY AFTERNOON...DO NOT EXPECT COVERAGE
TO BE THAT WIDESPREAD...SO ONLY WENT WITH SLIGHT CHANCE POPS. FOR
HIGHS TOOK A BLEND OF MAV/MET GUIDANCE...BLENDED WITH MIXING DOWN
FROM 825 HPA (PER BUFKIT SOUNDINGS) ACROSS THE INTERIOR. HIGHS
SHOULD BE AROUND 5 DEGREES ABOVE NORMAL AS A RESULT...W/ AFTERNOON
SEA BREEZE SERVING AS LIMITING FACTOR AT COASTAL LOCATIONS.

ABSENT ANY TRIGGER SATURDAY NIGHT...W/WEAK RIDGING CROSSING THE
AREA IN THE EVENING...THEN A WEAK SFC TROUGH SETTING UP TO OUR W
SATURDAY NIGHT...ALONG WITH WEAK 500/700 HPA SHORTWAVE STAYING TO
OUR N/W...HAVE GONE DRY SATURDAY NIGHT. FOR LOWS BLENDED MAV/MET
NUMBERS AS THEY ARE FAIRLY CLOSE...WITH VALUES ABOUT 5 DEGREES
ABOVE NORMAL EXPECTED.

&&

.LONG TERM /SUNDAY THROUGH FRIDAY/...
UNCERTAINTY IS HIGH FOR SUNDAY/SUNDAY NIGHT...THOUGH IS APPEARS IT
SHOULD START DRY ON SUNDAY. THE LATEST 09Z SREF SHOWS SOME AMOUNT
OF SPREAD WITH THE TIMING OF THE FRONT. THE MOST LIKELY TIMING IS
00Z TO 06Z WHICH FITS WITH THE DETERMINISTIC 12Z NAM/GFS.

MORE IMPORTANTLY...THE SREF HAS THE IDEA (DIVERSE MEMBERS INCLUDING
RSM AND NMM) OF A WAVE OF LOW PRESSURE FORMING ALONG THE FRONT AND
TRACKING NE. THIS LOW...ITS POSITION/TIMING/MOVEMENT HAS VERY HIGH
SPREAD IN THE SREF.

IN ADDITION...THE PARENT LOW OVER QUEBEC HAS LARGE VARIATION IN
DEPTH AS SEEN IN THE 12Z NAM VS THE GFS. THE FLOW INTENSITY OVER
THE LOCAL AREA THUS ENDS UP WITH HIGH VARIABILITY WITH THE 12Z NAM
GIVING 50 KT AT 2K FT SUNDAY EVENING. EXAMINATION OF THE SREF DATA
SUPPORTS THAT THIS MAN BE REAL WITH NMM AND ETA MEMBERS SUPPORTING
THIS...BUT ALSO ARW MEMBERS. THIS WOULD POTENTIALLY MEAN WIND
ADVISORY CRITERIA. OF COURSE THE INCREASE LOW LEVEL JET WILL
INCREASE THE SVR THREAT. SEE SPC/S DAY 3 OUTLOOK FOR MORE DETAILS
ON SVR THREAT.

THE OTHER ISSUE IS FLOODING. WITH THE POTENTIAL FOR A WAVE AND
PWATS NEAR 2 INCH...HAVE TO BE CONCERNED FOR FLOODING. SEE HYDRO
SECTION BELOW.

FOLLOWING THE FROPA...DRY WITH HIGH PRESSURE MON-WED. SOME
INSTABILITY CU IN THE AFTERNOON WITH TEMPS AVERAGING SLIGHTLY BELOW
NORMAL WITH DEW POINT TEMPS DROPPING TO THE LOWER 60S MONDAY
AFTERNOON AND THEN MID TO UPPER 50S FOR TUE-WED. NICE.

ANOTHER FRONT APPROACHES LATE THURSDAY WITH SOUTHWESTERLY FLOW. THE
FRONT THEN MOVES ACROSS OR PERHAPS STALLS OVER THE REGION ON FRIDAY.
CHANCE POPS ARE INTRODUCED.

&&

.AVIATION /19Z FRIDAY THROUGH WEDNESDAY/...
A SLOW MOVING UPPER LEVEL TROUGH WILL CONTINUE TO IMPACT THE REGION
TODAY. A WEAKENING FRONTAL BOUNDARY ENTERS THE REGION TONIGHT.

BEST CHANCE OF THUNDERSTORMS WILL BE LATE THIS AFTERNOON INTO EARLY
EVENING...WHICH FOR THE CITY IS FORECAST TO BE STARTING AT AROUND
23Z.

POCKETS OF MVFR VSBYS OR LOWER POSSIBLE AFTER 06Z...MAINLY NORTH
OF THE CITY.

LIGHT S TO SW WINDS THROUGH THIS EVENING. WIND GUSTS IN EXCESS OF
40KT WILL BE POSSIBLE IN THE STRONGEST TSTMS.

     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)

KEWR FCSTER COMMENTS: WINDS MAY SHIFT TOWARDS 170-190 AT TIMES FOR
THE REST OF THIS AFTERNOON. TEMPO GROUP FOR SHRA/CB MAY BE OFF BY AN
HOUR OR TWO.

KJFK FCSTER COMMENTS: TEMPO GROUP FOR SHRA/CB MAY BE OFF BY AN HOUR OR
TWO.

KLGA FCSTER COMMENTS: TEMPO GROUP FOR SHRA/CB MAY BE OFF BY AN HOUR OR
TWO.

KTEB FCSTER COMMENTS: TEMPO GROUP FOR SHRA/CB MAY BE OFF BY AN HOUR OR
TWO.

KHPN FCSTER COMMENTS: TEMPO GROUP FOR SHRA/CB MAY BE OFF BY AN HOUR OR
TWO.

KISP FCSTER COMMENTS: AMENDMENTS POSSIBLE FOR TSTMS LATE THIS
AFTERNOON INTO EVENING.

OUTLOOK FOR 18Z SAT THROUGH WED...

SAT...ISOLD-SCT TSTMS POSSIBLE. POCKETS OF MVFR OR LOWER
OVERNIGHT.

SUN...INCREASING SW FLOW AHEAD OF A COLD FRONT. STRONG WINDS
OVERNIGHT. A SQUALL LINE IS POSSIBLE AHEAD OF THE FRONT.

MON...BECOMING VFR WITH NW FLOW.

TUE...VFR WITH LIGHTER WINDS.

WED...VFR.

&&

.MARINE...
WITH A RELATIVELY LIGHT PRESSURE GRADIENT ACROSS THE
REGION...WINDS SHOULD REMAIN 10 KT OR LESS AND SEAS ON THE OCEAN 3
FT OR LESS...WITH WAVES ON THE SOUND/BAYS/HARBOR 1 FT OR LESS
THROUGH SATURDAY NIGHT.

WINDS AND SEAS INCREASE SUNDAY AFTERNOON AHEAD OF A COLD FRONT.
WINDS
GUSTING TO SCA LEVELS SEEM LIKELY BY EVENING WITH SEAS BUILDING ON
THE OCEAN TO 5 FT. THERE'S A CHANCE THAT WIND COULD BE HIGHER WITH A
LOW CHANCE FRO GALES SUNDAY EVENING.

HIGH PRESSURE AND GENERALLY TRANQUIL CONDITIONS RETURN FOR EARLY
NEXT WEEK.

&&

.HYDROLOGY...
STILL APPEARS WILL SEE BASIN AVERAGE QPF OF .1-.3 INCHES...MAYBE
LESS ACROSS FAR SE PORTIONS OF THE CWA THROUGH THIS EVENING.
HOWEVER WITH PRECIPITABLE WATERS OF 1.25-1.5 INCHES AND SLOW
MOVING STORMS...POTENTIAL EXISTS FOR LOCALLY HEAVY RAINFALL.
BECAUSE THESE STORMS ARE MAINLY PULSE IN NATURE...THEY SHOULD DIE
OUT BEFORE PRODUCING ENOUGH RAINFALL TO CAUSE ALL BUT VERY
ISOLATED LOCALIZED FLASH FLOODING...WITH MINOR FLOODING OF
URBAN/POOR DRAINAGE/LOW LYING AREAS/FLOOD PRONE SMALL
STREAMS/CREEKS MOST LIKELY.

CONVECTIVE THREAT IS LOWER SATURDAY...BUT STILL WITH SLOW MOVING
STORMS EXPECTED...LOCALIZED HEAVY RAINFALL CANNOT BE COMPLETELY
RULED OUT.

SATURDAY NIGHT SHOULD BE DRY.

HIGH PRECIPITABLE WATERS AND A POTENTIALLY STRENGTHENING LOW LEVEL
INFLOW COULD RESULT IN A FLOOD EVENT FOR LATE SUNDAY. BASIN
AVERAGE RAINFALL ON AROUND ONE INCH...BUT WITH POTENTIALLY MUCH
HIGHER AMOUNTS POSSIBLE SEEMS LIKELY. HIGHER AMOUNTS IN EXCESS OF
5 INCHES...WHILE A LOW LIKELIHOOD AT THIS TIME...ARE BEING OUTPUT
BY LATEST SREF. THERE'S A HIGH DEGREE OF UNCERTAINTY AT THIS TIME.
WE WILL OUTLOOK THIS CHANCE FOR FLASH FLOODING IN OUR HAZARDOUS
WEATHER OUTLOOK.

&&

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

&&

SYNOPSIS...MALOIT/JST
NEAR/SHORT TERM...MALOIT
LONG TERM...JST
AVIATION...JC
MARINE...MALOIT/JST
HYDROLOGY...MALOIT/JST
Hazardous weather outlook, Aug 19, 3:54 PM EDT, 34 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NEW YORK NY
354 PM EDT FRI AUG 19 2011

ANZ338-CTZ005-009-NJZ002-004-006-103>108-NYZ067>075-176-178-202000-
NEW YORK HARBOR-NORTHERN FAIRFIELD-SOUTHERN FAIRFIELD-
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)-
NORTHERN QUEENS-SOUTHERN QUEENS-
354 PM EDT FRI AUG 19 2011

...SEVERE THUNDERSTORM WATCH 791 IN EFFECT UNTIL 9 PM EDT THIS
EVENING...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR ATLANTIC COASTAL
WATERS...SOUTHERN CONNECTICUT...NORTHEAST NEW JERSEY AND SOUTHEAST
NEW YORK.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE
INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS.

   SEVERE THUNDERSTORM WATCH.

IN ADDITION...ANY STORMS WHICH DEVELOP WILL NOT MOVE THAT
QUICKLY. AS A RESULT...LOCALLY HEAVY RAINFALL IS POSSIBLE UNDER
ANY STRONGER...SLOW MOVING STORM. THIS COULD CAUSE LOCALIZED
FLOODING OF LOW LYING AND POOR DRAINAGE AREAS.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.

THERE IS A CHANCE FOR FLASH FLOODING LATE SUNDAY INTO SUNDAY
NIGHT AS A COLD FRONT APPROACHES AND MOVES THROUGH THE REGION. AT
THIS TIME...THERE IS A HIGH DEGREE OF UNCERTAINTY IN THE AMOUNT
OF RAINFALL THAT WILL OCCUR AND IT'S SPACIAL COVERAGE. SEE AND
MONITOR THIS SITUATION OVER THE WEEKEND. THE THE AREA FORECAST
DISCUSSION FOR ADDITIONAL INFORMATION. STRONG WIND GUSTS ARE ALSO
POSSIBLE WITH ANY STRONGER STORMS.

.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.

ANZ335-355-NYZ177-179-202000-
LONG ISLAND SOUND WEST OF NEW HAVEN CT/PORT JEFFERSON NY-
SANDY HOOK NJ TO FIRE ISLAND INLET NY OUT 20 NM-NORTHERN NASSAU-
SOUTHERN NASSAU-
354 PM EDT FRI AUG 19 2011

THIS HAZARDOUS WEATHER OUTLOOK IS FOR ATLANTIC COASTAL WATERS AND
SOUTHEAST NEW YORK.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS THIS AFTERNOON AND
EVENING...WITH THE MAIN THREAT BEING STRONG GUSTY WINDS.

IN ADDITION...ANY STORMS WHICH DEVELOP WILL NOT MOVE THAT QUICKLY.
AS A RESULT...LOCALLY HEAVY RAINFALL IS POSSIBLE UNDER ANY
STRONGER...SLOW MOVING STORM. THIS COULD CAUSE LOCALIZED FLOODING
OF LOW LYING AND POOR DRAINAGE AREAS.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.

THERE IS A CHANCE FOR FLASH FLOODING LATE SUNDAY INTO SUNDAY
NIGHT AS A COLD FRONT APPROACHES AND MOVES THROUGH THE REGION. AT
THIS TIME...THERE IS A HIGH DEGREE OF UNCERTAINTY IN THE AMOUNT
OF RAINFALL THAT WILL OCCUR AND IT'S SPACIAL COVERAGE. SEE AND
MONITOR THIS SITUATION OVER THE WEEKEND. THE THE AREA FORECAST
DISCUSSION FOR ADDITIONAL INFORMATION. STRONG WIND GUSTS ARE ALSO
POSSIBLE WITH ANY STRONGER STORMS.

.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.

CTZ006>008-010>012-NYZ078>081-202000-
NORTHERN NEW HAVEN-NORTHERN MIDDLESEX-NORTHERN NEW LONDON-
SOUTHERN NEW HAVEN-SOUTHERN MIDDLESEX-SOUTHERN NEW LONDON-
NORTHWESTERN SUFFOLK-NORTHEASTERN SUFFOLK-SOUTHWESTERN SUFFOLK-
SOUTHEASTERN SUFFOLK-
354 PM EDT FRI AUG 19 2011

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHERN CONNECTICUT AND
SOUTHEAST NEW YORK.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

SCATTERED SHOWERS AND THUNDERSTORMS WILL DEVELOP THIS
AFTERNOON...RESULTING IN LOCALLY HEAVY RAINFALL.
LOCALIZED FLOODING OF LOW LYING AND POOR DRAINAGE AREAS
IS POSSIBLE.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.

THERE IS A CHANCE FOR FLASH FLOODING LATE SUNDAY INTO SUNDAY
NIGHT AS A COLD FRONT APPROACHES AND MOVES THROUGH THE REGION. AT
THIS TIME...THERE IS A HIGH DEGREE OF UNCERTAINTY IN THE AMOUNT
OF RAINFALL THAT WILL OCCUR AND IT'S SPACIAL COVERAGE. SEE AND
MONITOR THIS SITUATION OVER THE WEEKEND. THE THE AREA FORECAST
DISCUSSION FOR ADDITIONAL INFORMATION. STRONG WIND GUSTS ARE ALSO
POSSIBLE WITH ANY STRONGER STORMS.

.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.

ANZ330-340-345-350-353-202000-
LONG ISLAND SOUND EAST OF NEW HAVEN CT/PORT JEFFERSON NY-
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-
354 PM EDT FRI AUG 19 2011

THIS HAZARDOUS WEATHER OUTLOOK IS FOR ATLANTIC COASTAL WATERS.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

HAZARDOUS WEATHER IS NOT EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.

A STRONG COLD FRONT WILL APPROACH ON SUNDAY. THUNDERSTORMS AHEAD
OF THE FRONT MAY PRODUCE STRONG WIND GUSTS SUNDAY AFTERNOON
AND EVENING.

.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.

In the hours before

Special weather statement, Aug 19, 12:33 PM EDT, 3 hours 55 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NEW YORK NY
1233 PM EDT FRI AUG 19 2011

NYZ067-191730-
ORANGE-
1233 PM EDT FRI AUG 19 2011

...STRONG THUNDERSTORM WILL IMPACT WESTERN ORANGE COUNTY...

AT 1227 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
A STRONG THUNDERSTORM 6 MILES SOUTHWEST OF GLEN SPEY...OR 7 MILES
NORTHWEST OF MILFORD...AND MOVING EAST AT 15 MPH.

THIS STORM WILL BE...
  NEAR PORT JERVIS BY 110 PM.
  5 MILES WEST OF OTISVILLE BY 130 PM.

FREQUENT CLOUD TO GROUND LIGHTNING...SMALL HAIL...AND GUSTY WINDS UP
TO 50 MPH ARE EXPECTED WITH THIS STORM. IN ADDITION...VERY HEAVY
RAIN...WITH RAINFALL RATES OF UP TO TWO 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.

LAT...LON 4150 7475 4150 7474 4151 7466 4151 7446
      4136 7441 4133 7466 4135 7471 4138 7471
      4141 7475 4142 7475 4143 7476 4146 7476

MALOIT
Local storm report, Aug 19, 12:46 PM EDT, 3 hours 42 minutes before
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE NEW YORK NY
1246 PM EDT FRI AUG 19 2011

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0733 PM     TSTM WND DMG     SAINT GEORGE            40.64N  74.08W
08/18/2011                   RICHMOND           NY   FIRE DEPT/RESCUE

            POWER LINES DOWN NEAR HIGH SCHOOL

0736 PM     MARINE TSTM WIND 1 NNE SAINT GEORGE      40.66N  74.07W
08/18/2011  M41 MPH          HUDSON             NJ   MESONET

            36 KNOTS RECORDED AT ROBINS REEF MESONET

0808 PM     TSTM WND DMG     CEDARHURST              40.63N  73.73W
08/18/2011                   NASSAU             NY   UTILITY COMPANY

            DOWNED POWER LINES IN CEDARHURST ON THE ROCKAWAY
            TURNPIKE.

0824 PM     TSTM WND DMG     ROCKVILLE CENTRE        40.66N  73.64W
08/18/2011                   NASSAU             NY   LAW ENFORCEMENT

            ONE TREE DOWN IN ROCKVILLE CENTRE. TIME ESTIMATED BY
            RADAR.

0833 PM     TSTM WND DMG     ELMONT                  40.70N  73.71W
08/18/2011                   NASSAU             NY   UTILITY COMPANY

            POWER LINES DOWN ON DUTCH BROADWAY.

0835 PM     TSTM WND DMG     WOODMERE                40.64N  73.72W
08/18/2011                   NASSAU             NY   UTILITY COMPANY

            WIRES DOWN ON RAYMOND PLACE.

0839 PM     TSTM WND DMG     OCEANSIDE               40.63N  73.64W
08/18/2011                   NASSAU             NY   UTILITY COMPANY

            DOWNED POWER LINES ON ROCKAWAY AVENUE.

0846 PM     TSTM WND DMG     WANTAGH                 40.67N  73.51W
08/18/2011                   NASSAU             NY   FIRE DEPT/RESCUE

            WIRES DOWN ON NORTH WANTAGH AVENUE

0923 PM     TSTM WND DMG     ISLIP                   40.73N  73.22W
08/18/2011                   SUFFOLK            NY   UTILITY COMPANY

            POWER LINES DOWN ON BROADWAY AVENUE

0942 PM     TSTM WND DMG     SAYVILLE                40.75N  73.09W
08/18/2011                   SUFFOLK            NY   UTILITY COMPANY

            POWER LINES DOWN ON LINCOLN AVENUE

0945 PM     HAIL             PATCHOGUE               40.76N  73.02W
08/18/2011  M1.00 INCH       SUFFOLK            NY   NWS EMPLOYEE

            QUARTER SIZE HAIL IN PATCHOGUE

0946 PM     TSTM WND DMG     NORTH PATCHOGUE         40.78N  73.02W
08/18/2011                   SUFFOLK            NY   UTILITY COMPANY

            POWER LINES DOWN ON MULFORD STREET.

0947 PM     TSTM WND DMG     PATCHOGUE               40.76N  73.02W
08/18/2011                   SUFFOLK            NY   NWS EMPLOYEE

            LARGE TREE LIMBS DOWN ON CEDAR AVENUE

1010 PM     MARINE TSTM WIND 2 SSE EAST MORICHES     40.79N  72.75W
08/18/2011  M45 MPH          ANZ345             NY   MESONET

            39 KNOTS

1034 PM     TSTM WND DMG     POMPTON LAKES           41.00N  74.29W
08/18/2011                   PASSAIC            NJ   LAW ENFORCEMENT

            TREE DOWN BLOCKING RINGWOOD ROAD AT STILES COURT.

1038 PM     TSTM WND DMG     POMPTON LAKES           41.00N  74.29W
08/18/2011                   PASSAIC            NJ   LAW ENFORCEMENT

            TREE DOWN INTO A HOUSE ON LEGION STREET

1040 PM     TSTM WND DMG     POMPTON LAKES           41.00N  74.29W
08/18/2011                   PASSAIC            NJ   LAW ENFORCEMENT

            POWER LINES DOWN ON BUTLER STREET.

1054 PM     TSTM WND DMG     UPPER SADDLE RIVER      41.06N  74.10W
08/18/2011                   BERGEN             NJ   LAW ENFORCEMENT

            MULTIPLE TREES DOWN ACROSS THE CITY

&&

LN
Special weather statement, Aug 19, 3:16 PM EDT, 1 hour 12 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NEW YORK NY
316 PM EDT FRI AUG 19 2011

NYZ067-069-192000-
ORANGE-ROCKLAND-
316 PM EDT FRI AUG 19 2011

...DEVELOPING THUNDERSTORM WILL IMPACT ROCKLAND AND SOUTHEASTERN
ORANGE COUNTIES...

AT 314 PM EDT...SATELLITE IMAGERY AND NATIONAL WEATHER SERVICE
DOPPLER RADAR INDICATED THAT THUNDERSTORM WERE RAPIDLY DEVELOPING
NEAR GREENWOOD LAKE...OR NEAR WARWICK...AND MOVING EAST AT 10 MPH.

HAIL UP TO NICKEL SIZE...AND GUSTY WINDS UP TO 50 MPH ARE EXPECTED
WITH THESE STORMS. IN ADDITION...HEAVY RAIN 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 TOP KILLERS. REMEMBER...IF YOU CAN HEAR
THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING. MOVE TO
SAFE SHELTER IMMEDIATELY.

LAT...LON 4131 7444 4146 7401 4136 7396 4133 7398
      4130 7397 4129 7395 4127 7397 4124 7397
      4120 7394 4115 7427 4120 7440 4130 7444

MAS
Special weather statement, Aug 19, 4:00 PM EDT, 28 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NEW YORK NY
400 PM EDT FRI AUG 19 2011

NJZ002-NYZ067-192045-
ORANGE-WESTERN PASSAIC-
400 PM EDT FRI AUG 19 2011

...STRONG THUNDERSTORM WILL IMPACT PASSAIC AND SOUTHERN ORANGE
COUNTIES...

AT 357 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
STRONG THUNDERSTORM NEAR GREENWOOD LAKE...OR NEAR WARWICK...AND
MOVING SOUTHWEST AT 5 MPH.

PEOPLE IN PASSAIC AND SOUTHERN ORANGE COUNTIES...INCLUDING WARWICK
AND GREENWOOD LAKE...SHOULD MONITOR THE WEATHER SITUATION CLOSELY.
LISTEN FOR POSSIBLE WARNINGS AND BE PREPARED TO TAKE APPROPRIATE
ACTION SHOULD SEVERE WEATHER THREATEN.

HAIL UP TO NICKEL SIZE...AND GUSTY WINDS UP TO 50 MPH ARE EXPECTED
WITH THIS STORM. IN ADDITION...VERY HEAVY RAIN...WITH RAINFALL RATES
OF UP TO 1.5 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.

LAT...LON 4135 7435 4128 7414 4119 7417 4114 7424
      4112 7421 4111 7422 4115 7442 4119 7438
      4122 7444 4123 7445

JM

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 18, 8:19 PM EDTSevere Thunderstorm WarningOKXNassau, Queens26 min
Aug 18, 8:30 PM EDTAreal Flood AdvisoryOKXNassau, Queens, Suffolk60 min
Aug 18, 8:45 PM EDTSevere Thunderstorm WarningOKXNassau, Suffolk30 min
Aug 18, 8:54 PM EDTSpecial Weather StatementOKXPutnam, Westchester66 min
Aug 18, 9:03 PM EDTSpecial Marine WarningOKX42 min
Aug 18, 9:33 PM EDTAreal Flood AdvisoryOKXSuffolk57 min
Aug 18, 9:33 PM EDTSevere Thunderstorm WarningOKXSuffolk42 min
Aug 18, 9:40 PM EDTSpecial Marine WarningOKX35 min
Aug 18, 10:01 PM EDTSevere Thunderstorm WarningOKXSuffolk26 min
Aug 18, 10:38 PM EDTSpecial Weather StatementOKXBronx, Rockland52 min
Aug 18, 10:45 PM EDTSevere Thunderstorm WarningOKXRockland, Westchester45 min
Aug 19, 12:33 PM EDTSpecial Weather StatementOKXOrange57 min
Aug 19, 3:16 PM EDTSpecial Weather StatementOKXOrange44 min
Aug 19, 4:00 PM EDTSpecial Weather StatementOKXOrange45 min
Aug 19, 4:03 PM EDTSevere Thunderstorm WarningOKXOrange42 min
Aug 19, 4:15 PM EDTAreal Flood AdvisoryOKXOrange60 min
Aug 19, 4:43 PM EDTSevere Thunderstorm WarningOKXOrange, Rockland62 min
Aug 19, 5:17 PM EDTSevere Thunderstorm WarningOKXOrange, Putnam43 min
Aug 19, 5:42 PM EDTSevere Thunderstorm WarningOKXOrange, Rockland30 min
Aug 19, 5:46 PM EDTSevere Thunderstorm WarningOKXPutnam59 min
Aug 19, 5:59 PM EDTFlash Flood WarningOKXRockland91 min
Aug 19, 6:03 PM EDTSevere Thunderstorm WarningOKXPutnam, Rockland, Westchester45 min
Aug 19, 6:24 PM EDTSpecial Marine WarningOKX51 min
Aug 19, 6:27 PM EDTFlash Flood WarningOKXPutnam, Rockland, Westchester42 min
Aug 19, 6:29 PM EDTSevere Thunderstorm WarningOKXRockland, Westchester46 min
Aug 19, 6:46 PM EDTFlash Flood WarningOKXRichmond59 min
Aug 19, 6:59 PM EDTSevere Thunderstorm WarningOKXKings, Richmond46 min
Aug 19, 7:00 PM EDTSevere Thunderstorm WarningOKXBronx, New York, Westchester45 min
Aug 19, 7:09 PM EDTSpecial Weather StatementOKXNew York51 min
Aug 19, 7:16 PM EDTSevere Thunderstorm WarningOKXKings, New York, Queens44 min
Aug 19, 7:18 PM EDTSpecial Marine WarningOKX57 min
Aug 19, 7:24 PM EDTFlash Flood WarningOKXBronx, Kings, Nassau, New York, Queens, Richmond and 1 more66 min
Aug 19, 7:35 PM EDTSpecial Marine WarningOKX55 min
Aug 19, 7:46 PM EDTSevere Thunderstorm WarningOKXNassau, Queens44 min

Nearby

Flash Flood Warnings in New York, 2011Every flash flood warning in 2011

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.