1 flash flood, as filed by the National Weather Service.
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 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 30, 8:30 AM EST, 5 hours earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE UPTON NY 930 AM EDT TUE AUG 30 2005 ...MUCH NEEDED RAINS ON THE WAY... .NEAR TERM (TODAY AND TONIGHT)... SOME BENEFICIAL RAINS OVER THE PARCHED FAR EASTERN PORTION OF CWA EARLY THIS MORNING...1+ ACROSS PORTIONS OF SOUTH FORK OF LI AND EASTERN NEW LONDON COUNTY. THIS IN RESPONSE TO A DEEP TROPICAL MOISTURE FEED...WEAK SHORTWAVE/VORT ENERGY ROUNDING UPPER LOW OVER ONTARIO...AND A WEAK BOUNDARY PROVIDING THE LOW-LEVEL CONVERGENCE. EXPECT THIS ACTIVITY TO CONTINUE THROUGH THE AFTERNOON IN THE FORM OF SCATTERED MODERATE/LOCALLY HEAVY SHRA/ISOLATED TSTMS. LIGHTER RAIN SHOWER ACTIVITY OVER THE WESTERN HALF OF CWA IN RESPONSE TO SHORTWAVE/VORT ENERGY WILL BECOME LOCALLY HEAVY THIS AFTERNOON WITH DAYTIME HEATING CONVECTION IN THIS TROPICAL AIRMASS. HAVE INCREASED POPS TO LIKELY/CAT ACROSS THE AREA TO ACCOUNT FOR THIS. A GOOD DEAL OF CLOUD COVER WILL LIMIT SURFACE BASED INSTABILITY TODAY...WHICH SHOULD KEEP ANY TSTM ACTIVITY BELOW SEVERE LEVELS. MAIN THREAT WILL BE TORRENTIAL DOWNPOURS. OTHERWISE...THE COMBINATION OF A SLOW MOVING UPPER LOW SOUTH OF JAMES BAY... EXTENDING SOUTHWARD INTO THE OH AND TN VALLEYS...WILL HELP TO STEER THE REMNANTS OF KATRINA TO THE NORTHEAST. THE CURRENT TPC FORECAST TAKES THE REMNANT LOW WELL WEST OF THE FORECAST AREA...TRACKING UP INTO THE OH VALLEY TONIGHT AND INTO THE ST. LAWRENCE RIVER VALLEY WED NIGHT. TROPICAL MOISTURE STREAMING OUT AHEAD OF THE SYSTEM AROUND THE WESTERN PERIPHERY OF THE SUB TROPICAL RIDGE AND WEAK PERTURBATIONS BOTH AT THE SURFACE AND ALOFT WILL RESULT IN GOOD CHANCES OF RAINFALL THE NEXT 36 HOURS. AS THE REMNANTS OF KATRINA WORK UP INTO THE OHIO VALLEY THIS EVENING...A STRENGTHENING LOW-LEVEL JET WILL DEVELOP ALONG THE EASTERN SEABOARD. THIS IS EXPECTED TO PROVIDE ENOUGH THERMAL FORCING IN A MOISTURE-LADEN AIRMASS TO PRODUCE WIDESPREAD RAINFALL OVERNIGHT. IN FACT...LOCALIZED HEAVY DOWNPOURS WILL BE POSSIBLE UNTIL A COLD FRONT CLEARS THE AREA WED EVENING. && .SHORT TERM (WEDNESDAY THROUGH THURSDAY)... AIRMASS BECOMES A BIT LESS STABLE ON WED WITH SLIGHTLY HIGHER TEMPS. HOWEVER...DEEP MOISTURE WILL RESULT IN MOSTLY CLOUDY CONDITIONS... LIMITING THE TRUE POTENTIAL. 0-1 KM HELICITY VALUES ON WED ON THE ORDER OF 150 TO 200 M2/S2. THUS...LOW TOP CONVECTION WITH SUPERCELL DEVELOPMENT WILL HAVE TO BE CLOSELY WATCHED IN THIS TROPICAL AIRMASS. A LIMITING FACTOR THOUGH IS THAT THE REMNANT LOW WILL TRACK TO THE WEST OF THE APPALACHIANS...WHICH USUALLY LIMITS THE AMOUNT OF LOW-LEVEL SHEAR. WHILE A LOW CAPE ENVIRONMENT IS FORECAST ON WED...ANY SIGNIFICANT BREAKS IN THE CLOUD WOULD FURTHER DESTABILIZE THE AIRMASS. SIDING WITH THE GFS AND CANADIAN SOLUTIONS WE ARE LOOKING FOR A FRONTAL PASSAGE BETWEEN 00Z AND 06Z THU WITH DRY CONDITIONS EXPECTED BY DAYBREAK. WEAK COLD ADVECTION AND A DRYING AIRMASS WILL ALLOW FOR GOOD HEATING OF THE SFC WITH TEMPS WELL INTO THE 80S THU AFT. && .LONG TERM (THURSDAY NIGHT THROUGH MONDAY)... A DRIER AND SLIGHTLY COOLER AIRMASS IS THEN EXPECTED TO DOMINATE THE LOCAL REGION THROUGH THE REMAINDER OF THE LONG TERM. STAYED VERY CLOSE TO HPC GUIDANCE THROUGH THE ENTIRE EXTENDED PERIOD. && .MARINE... WINDS AND SEAS WILL LIKELY STAY BELOW SCA CRITERIA THROUGH TODAY. THEREAFTER...THE GRADIENT AND LLJ SHOULD INCREASE DUE TO THE CLOSE PASS OF THE REMNANTS OF KATRINA. THIS WILL LIKELY BE ENOUGH TO CAUSE FOR SCA WINDS WED AND WED NIGHT...ESPECIALLY ON THE OCEAN. SEAS ON THE OCEAN WILL LIKELY RESPOND BY LATE TONIGHT BY GOING UP TO AROUND 5 FT...TOPPING OUT AROUND 8-9 FT WED EVENING. WINDS AND SEAS SUBSIDE THURS ONWARD. && .AVIATION... VERY MOIST AIRMASS IN PLACE WITH SOUTHERLY WINDS AROUND 10 KNOTS OR SO PREVAILING THROUGH THE PERIOD. CIGS STILL IN THE IFR/MVFR RANGE AT SOME TERMINALS BUT EXPECT THIS TO LIFT TO MAINLY VFR THIS AFTERNOON ALTHOUGH SHOWERS WILL LOWER THIS AT TIMES. VSBY OUTSIDE OF SHOWERS SHOULD REMAIN VFR. THIS EVENING BOTH CIGS AND VSBY WILL LOWER TO IFR OR LOWER AND REMAIN DOWN THROUGH EARLY WEDNESDAY MORNING. && .HYDROLOGY... EXPECT A QPF OF BETWEEN 1 AND 1 1/2 INCHES THROUGH WEDNESDAY NIGHT WITH POSSIBLY SOME LOCALIZED HIGHER AMOUNTS. DUE TO THE TROPICAL NATURE OF AIRMASS...THE POTENTIAL FOR LOCALIZED FLOODING IS POSSIBLE...HOWEVER...SINCE THE AREA HAS BEEN VERY DRY...WE DO NOT EXPECT THE RAINFALL TO CAUSE ANY SIGNIFICANT PROBLEMS WITH RIVERS AND STREAMS. && .FIRE WEATHER... THE FORECAST HIGH HUMIDITY AND SIGNIFICANT RAINFALL OVER THE NEXT TWO DAYS WILL PUT AN END TO THE RECENT FIRE WEATHER DANGER. && .OKX WATCHES/WARNINGS/ADVISORIES... CT...NONE. NY...NONE. NJ...NONE. MARINE...NONE. &&
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE UPTON NY 536 AM EDT TUE AUG 30 2005 SPOTTER ACTIVATION IS NOT ANTICIPATED. CTZ005>012-NJZ002>006-011-NYZ067>081-311000- BERGEN NJ-BRONX NY-EASTERN PASSAIC NJ-ESSEX NJ-HUDSON NJ- KINGS (BROOKLYN) NY-NASSAU NY-NEW YORK (MANHATTAN) NY- NORTHEAST SUFFOLK NY-NORTHERN FAIRFIELD CT-NORTHERN MIDDLESEX CT- NORTHERN NEW HAVEN CT-NORTHERN NEW LONDON CT-NORTHERN WESTCHESTER NY- NORTHWEST SUFFOLK NY-ORANGE NY-PUTNAM NY-QUEENS NY- RICHMOND (STATEN IS.) NY-ROCKLAND NY-SOUTHEAST SUFFOLK NY- SOUTHERN FAIRFIELD CT-SOUTHERN MIDDLESEX CT-SOUTHERN NEW HAVEN CT- SOUTHERN NEW LONDON CT-SOUTHERN WESTCHESTER NY-SOUTHWEST SUFFOLK NY- UNION NJ-WESTERN PASSAIC NJ- 536 AM EDT TUE AUG 30 2005 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEASTERN NEW YORK... NORTHEASTERN NEW JERSEY AND SOUTHERN CONNECTICUT. .DAY ONE...TODAY AND TONIGHT THERE IS THE POTENTIAL FOR LOCALLY HEAVY RAINFALL TO ACCOMPANY ANY SHOWERS AND THUNDERSTORMS DURING THE NEXT 24 HOURS. DUE TO THE RECENT STRETCH OF DRY WEATHER...WE DO NOT EXPECT THE RAINFALL TO CAUSE ANY SIGNIFICANT PROBLEMS WITH RIVERS AND STREAMS. LOCALIZED FLOODING IS POSSIBLE...BUT MAINLY OF THE MINOR NUISANCE VARIETY... OTHERWISE NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN... AN APPROACHING COLD FRONT WILL INTERACT WITH A MOISTURE-RICH AIRMASS. THIS WILL RESULT IN ADDITIONAL RAINFALL ON WEDNESDAY AS SHOWERS AND THUNDERSTORMS DEVELOP ALONG AND AHEAD OF THE COLD FRONT. THE COLD FRONT IS FORECAST TO MOVE THROUGH THE TRI-STATE AREA DURING THE EVENING HOURS...OTHERWISE NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED. ANZ330-335-338-350-353-355-311000- FIRE ISLAND INLET NY TO MORICHES INLET NY OUT 20 NM- LONG ISLAND SOUND EAST OF NEW HAVEN CT/PORT JEFFERSON NY- LONG ISLAND SOUND WEST OF NEW HAVEN CT/PORT JEFFERSON NY- MORICHES INLET NY TO MONTAUK POINT NY OUT 20 NM-NEW YORK HARBOR- SANDY HOOK NJ TO FIRE ISLAND INLET NY OUT 20 NM- 536 AM EDT TUE AUG 30 2005 THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE COASTAL WATERS OF SOUTHEASTERN NEW YORK...NORTHEASTERN NEW JERSEY AND SOUTHERN CONNECTICUT. .DAY ONE...TODAY AND TONIGHT A STRENGTHENING SOUTHERLY FLOW IS EXPECTED TO BRING SEAS ON THE OCEAN UP TO SMALL CRAFT ADVISORY CRITERIA TONIGHT...OTHERWISE NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN... SMALL CRAFT CONDITIONS ARE FORECAST ON ALL WATERS DURING THE DAY WEDNESDAY AND MAY CONTINUE INTO THURSDAY FOR SEAS ON THE OCEAN... OTHERWISE NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED.
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE UPTON NY 229 PM EDT TUE AUG 30 2005 CTZ005>012-NJZ002>006-011-NYZ067>081-310300- BERGEN NJ-BRONX NY-EASTERN PASSAIC NJ-ESSEX NJ-HUDSON NJ- KINGS (BROOKLYN) NY-NASSAU NY-NEW YORK (MANHATTAN) NY- NORTHEAST SUFFOLK NY-NORTHERN FAIRFIELD CT-NORTHERN MIDDLESEX CT- NORTHERN NEW HAVEN CT-NORTHERN NEW LONDON CT-NORTHERN WESTCHESTER NY- NORTHWEST SUFFOLK NY-ORANGE NY-PUTNAM NY-QUEENS NY- RICHMOND (STATEN IS.) NY-ROCKLAND NY-SOUTHEAST SUFFOLK NY- SOUTHERN FAIRFIELD CT-SOUTHERN MIDDLESEX CT-SOUTHERN NEW HAVEN CT- SOUTHERN NEW LONDON CT-SOUTHERN WESTCHESTER NY-SOUTHWEST SUFFOLK NY- UNION NJ-WESTERN PASSAIC NJ- 229 PM EDT TUE AUG 30 2005 ...HEAVY RAIN POSSIBLE AT TIMES THROUGH WEDNESDAY EVENING... A TROPICAL AIRMASS HAS WORKED ITS WAY UP THE EASTERN SEABOARD AND WILL REMAIN ACROSS THE TRI-STATE REGION THROUGH THE MID WEEK PERIOD. AT THE SAME TIME THE REMNANTS OF KATRINA WILL BE TRACKING ALONG TO THE WEST OF THE APPALACHIANS. THE RESULT OF ALL OF THIS IS THAT WE WILL BE UNDER THE THREAT OF RAIN FOR THE NEXT 36 HOURS OR SO AND THAT SOME OF THIS MAY BECOME QUITE HEAVY AT TIMES. ALONG THE COAST WE ARE ANTICIPATING A TOTAL RAINFALL THAT WILL AVERAGE BETWEEN 1 AND 2 INCHES. FURTHER INLAND...AMOUNTS BETWEEN 2 AND 2 1/2 INCHES ARE MORE LIKELY ALTHOUGH LOCALLY HIGHER AMOUNTS ARE POSSIBLE THROUGHOUT THE ENTIRE TRI-STATE REGION. SUCH AMOUNTS ARE SIGNIFICANT...BUT SINCE WE HAVE BEEN VERY DRY AS OF LATE...THE THREAT OF FLOODING SHOULD BE MINIMIZED. MAIN STEM RIVERS AND STREAMS ARE RUNNING VERY LOW AT THIS TIME SO NO PROBLEMS ARE EXPECTED HERE. THE SMALLER STREAMS AND CREEKS...ALSO RUNNING VERY LOW...WILL LIKELY SEE SOME SHARP RISES BUT EVEN HERE THE THREAT OF OVERFLOWING THEIR BANKS IS RELATIVELY SMALL. THE TYPE OF FLOODING THAT IS MOST LIKELY TO OCCUR IS LOCALIZED URBAN FLOODING AND FLOODING OF POOR DRAINAGE AREAS. BOTH THE WEDNESDAY MORNING AND EVENING RUSH HOUR ARE EXPECTED TO FEATURE SOME LOCALLY HEAVY RAINS SO DELAYS ARE POSSIBLE. ANOTHER THREAT BEING LOOKED AT IS THE POSSIBILITY OF SOME DAMAGING STORMS WEDNESDAY...MAINLY DURING THE LATE AFTERNOON AND EVENING HOURS. THE STORM PREDICTION CENTER HAS PLACED OUR REGION UNDER A SLIGHT RISK FOR SEVERE WEATHER DURING THAT TIME...INCLUDING THE MENTION FOR THE POTENTIAL OF A TORNADO. THIS THREAT IS GOING TO DEPEND HEAVILY ON JUST HOW MUCH SUNSHINE WE MANAGE TO GET WEDNESDAY. THE MORE SUNSHINE WE GET...THE GREATER THE THREAT FOR SEVERE WEATHER. IF WE STAY CLOUDY...THE ATMOSPHERE WILL REMAIN MORE STABLE AND THUS THE THREAT WILL BE GREATLY DIMINISHED. THE THREAT FOR SEVERE WEATHER AND ALSO THE HEAVY RAIN WILL COME TO AN END WEDNESDAY NIGHT AS A COLD FRONT SWEEPS ACROSS US FROM THE WEST. IN THE MEANTIME...STAY TUNED TO NOAA WEATHER RADIO AND OTHER LOCAL MEDIA FOR THE LATEST DETAILS.
The Brookhaven radar (KOKX), 40 km away, was scanning. The volume nearest the first event began at 18:32 UTC.
1 flash flood. Local standard time, as filed.
Thunderstorms caused flash flooding of roads in Northport and Centerport. Radar rainfall estimates were 3 to 5 inches in only two hours time.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in New York in 2005Every state in 2005This day in weather historyWarnings in New York, August 2005
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: 5472759.