Flash Flood Warning 16, NWS New York, NY

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE UPTON NY
400 PM EDT MON JUL 18 2005

.NEAR TERM (THIS EVENING AND TONIGHT)...

MESOSCALE PROCESSES ALONG WITH LOADS OF INSTAB AND PWAT HELPING TO
CAUSE SCATTERED FLASH FLOODING TO OCCUR...MAINLY OVER NORTHERN
NASSAU AND NW SUFFOLK COUNTIES ON LI WHERE SEABREEZE HAS LIT UP.
WILL BE CONTINUING TO MONITOR FOR FLOOD/ISOLD SVR THREAT THROUGH
EARLY THIS EVENING ACRS THE ENTIRE CWA...ALTHOUGH MOST OF LI SHOULD
BE SAFE IN THE NEXT HOUR OR TWO AS SEABREEZE PUSHES INTO THE SOUND.

OTHERWISE...JUST A VERY MUGGY NIGHT WITH SCATTERED SHOWERS BECOMING
LESS NUMEROUS AS THE EVENING PROGRESSES. FOG AND STRATUS LIKELY
REDEVELOP ALONG THE COAST IF NOT ALL OF THE CWA OVERNIGHT.
&&

.SHORT TERM (TUE AND WED)...

COLD FRONT APPROACHES TUE AFTN. AFTER SOME MORNING FOG AND
STRATUS...EXPECT SHOWERS AND TSTMS TO DVLP DURING THE AFTERNOON.
WINDS DO INCREASE ALOFT AS S/W APPROACHES...SO THIS COMBINED WITH
PLENTY OF INSTAB COULD ALLOW FOR SOME ISOLD SEVERE STORMS AND FLASH
FLOODING.

TEMPS AND HEAT INDEX ANOTHER STORY. HIGHS TUE SHOULD BE A FEW WARMER
THAN TODAY. THIS COMBINED WITH DEWS IN THE 70S SHOULD GET HIS
AROUND 100F IF NOT A DEGREE OR TWO HIGHER ACROSS MOST OF THE CWA
EXCEPT THE BEACHES. WILL LIKELY GO WITH AN SPS FOR ADDRESS THE HEAT
ISSUES. NO ADV ATTM SINCE WE HAVE PLENTY OF TIME TO REASSESS ON
EVENING/MID SHIFT.

WE DRY OUT AS FAR AS DEWPOINTS GO ON WEDNESDAY...BUT TEMPS STILL HOT
/90S/ FOR MOST IF NOT ALL OF THE CWA.
&&

LONG TERM (THU THROUGH MON)...

WARM CONDITIONS WILL CONTINUE...HOWEVER CONDITIONS WILL BE LESS
HUMID. A COLD FRONT WILL MOVE THROUGH THE REGION ON FRIDAY AFTERNOON
SETTING OFF A CHANCE OF SHOWERS AND A FEW THUNDERSTORMS. DRIER
WEATHER WILL RETURN FOR SATURDAY AND MUCH OF SUNDAY. IT APPEARS AT
THIS TIME THAT ANOTHER FRONTAL BOUNDARY WILL CROSS THE CWA SUNDAY
EVENING. WENT WITH A SLIGHT CHANCE TO COVER THE POSSIBILITY OF ANY
SHOWERS OR THUNDERSTORMS. DRIER WEATHER RETURNS FOR MONDAY.
&&

.AVIATION...
SEABREEZE BOUNDARY HAS ACTED AS THE TRIGGER FOR CONVECTION TO FIRE
UP ACROSS LONG ISLAND AND SOUTHERN CT. HAVE INCLUDED A CB APPENDAGE
AT MOST TERMINALS TO ACCOUNT FOR THE POSSIBILITY FOR TSTMS AT AREA
TAF SITES. EXPECTING MAINLY MVFR CONDITIONS TO PREVAIL OUTSIDE OF
NYC (MOSTLY FOR VSBY - FOG/HAZE). COOLING FROM TSTMS HAVE ALLOWED
IFR STRATUS ALONG THE SOUTH SHORE OF LONG ISLAND TO ADVECT INLAND.
THIS MAY END UP REMAINING OVER COASTAL TERMINALS FOR THE REMAINDER
OF THE DAY. OTHERWISE..EXPECTING A REPEAT PERFORMANCE OF LAST NIGHT
WITH REGARDS TO FOG AND STRATUS WITH LIGHT SOUTHERLY FLOW
CONTINUING. CONDITIONS EXPECTED TO LOWER TO LIFR/VLIFR AT COASTAL
TERMINALS...IFR/LOW MVFR ELSEWHERE. HOWEVER...EXPECTING A QUICKER
IMPROVEMENT ON TUE AS WINDS SHOULD PICK UP OUT OF THE SOUTHWEST IN
THE MORNING AHEAD OF AN APPROACHING COLD FRONT.
&&

.MARINE...
WINDS/SEAS TO REMAIN BELOW SCA CRITERIA THROUGH THE FCST PERIOD.
SHOWERS AND TSTMS WILL MOVE ACROSS THE WATERS THIS EVENING...AND ANY
TSTMS WILL BE CAPABLE OF PRODUCING LOCALLY HIGHER WINDS/SEAS. FOG
WILL ONCE AGAIN DEVELOP TONIGHT AS HIGH DEWPOINT AIR MOVES OVER THE
COOLER SHELF WATERS. A COLD FRONT WILL CROSS THE WATERS TUE NIGHT
AND IMPROVING CONDITIONS WILL BUILD OVER THE AREA BEHIND THE FRONT
FOR MIDWEEK.
&&

.HYDROLOGY...
ANY TSTMS THRU TUESDAY MAY PRODUCE LOCALLY HEAVY DOWNPOURS AND
ATTENDANT FLOOD THREAT GIVEN PWATS OVER 2 AND RELATIVELY LIGHT
STEERING WINDS.
&&

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

NEAR/SHORT TERM...EKSTER
MARINE...SILVA
AVIATION...AL
LONG TERM...BC/JT

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE UPTON NY
426 AM EDT MON JUL 18 2005

CTZ005>012-NJZ002>006-011-NYZ067>081-191100-
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-
426 AM EDT MON JUL 18 2005

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

.DAY ONE...TODAY AND TONIGHT
ANY THUNDERSTORMS THAT DEVELOP WILL BE SLOW MOVING AND COULD PRODUCE
LOCALIZED HEAVY DOWNPOURS AND POOR DRAINAGE FLOODING.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY
THE THREAT FOR LOCALIZED POOR DRAINAGE FLOODING WITH SLOW MOVING
THUNDERSTORMS WILL PERSIST INTO AT LEAST TUESDAY.  A FEW
THUNDERSTORMS MAY APPROACH SEVERE LIMITS TUESDAY AFTERNOON AND
EVENING.

THE COMBINATION OF AIR TEMPERATURES CLIMBING INTO THE LOWER 90S
ACROSS MUCH OF THE REGION TUESDAY AFTERNOON AND HIGH HUMIDITY WILL
CAUSE HEAT INDICES MAY APPROACH 100 DEGREES TUESDAY AFTERNOON.  HEAT
ADVISORIES MAY BE NECESSARY FOR PARTS OF THE REGION ON TUESDAY.

.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION IS NOT ANTICIPATED...BUT SPOTTERS ARE REQUESTED TO
CALL OR SEND IN ANY REPORTS OF FLOODING OR HEAVY RAINFALL.

ANZ330-335-338-350-353-355-191100-
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-
426 AM EDT MON JUL 18 2005

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE WATERS AROUND LONG
ISLAND...INCLUDING NEW YORK HARBOR.

.DAY ONE...TODAY AND TONIGHT...
FOG OVER THE WATERS WILL LOCALLY REDUCE VISIBILITY TO BELOW 1 NM.
OTHERWISE NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY...
NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION IS NOT ANTICIPATED.

SR

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE UPTON NY
411 PM EDT MON JUL 18 2005

NJZ003>006-011-NYZ072>076-190200-
BERGEN NJ-BRONX NY-EASTERN PASSAIC NJ-ESSEX NJ-HUDSON NJ-
KINGS (BROOKLYN) NY-NEW YORK (MANHATTAN) NY-QUEENS NY-
RICHMOND (STATEN IS.) NY-UNION NJ-
411 PM EDT MON JUL 18 2005

...HEAT INDICES AROUND 100 DEGREES TUESDAY AFTERNOON...

A VERY WARM AND HUMID AIRMASS WILL PERSIST ACROSS THE TRI-STATE AREA
TONIGHT AND TUESDAY. LOW TEMPERATURES IN URBANIZED AREAS WILL ONLY
DROP INTO THE UPPER 70S TONIGHT WITH RELATIVE HUMIDITY VALUES NEAR
100 PERCENT. AFTER SOME MORNING CLOUDS TUESDAY...THE SUN WILL BREAK
OUT FROM TIME TO TIME...SENDING TEMPERATURES INTO THE 90S
DURING THE AFTERNOON. THIS COMBINED WITH DEWPOINTS IN THE MID 70S
WILL ALLOW HEAT INDICES TO APPROACH OR EXCEED 100 DEGREES. SOME
RELIEF WILL BE FELT ON WEDNESDAY. TEMPERATURES WILL STILL RISE INTO
THE LOWER 90S...BUT RELATIVE HUMIDITY LEVELS SHOULD BE MUCH LOWER
THAN TUESDAYS VALUES.

CHILDREN...THE ELDERLY...AND PEOPLE WITH CHRONIC AILMENTS ARE
USUALLY THE FIRST TO SUFFER FROM THE HEAT. HEAT EXHAUSTION...
CRAMPS...OR IN EXTREME CASES HEAT STROKE CAN RESULT FROM PROLONGED
EXPOSURE TO THESE CONDITIONS. FRIENDS...RELATIVES...OR NEIGHBORS
SHOULD CHECK ON PEOPLE WHO MAY BE AT RISK.

BE SURE TO DRINK PLENTY OF WATER OR OTHER NON-ALCOHOLIC BEVERAGES...
WEAR LIGHT COLORED LIGHTWEIGHT CLOTHING...AND IF POSSIBLE...SPEND
MORE TIME IN AIR CONDITIONED OR WELL VENTILATED PLACES.

STAY TUNED TO NOAA ALL HAZARDS RADIO...OR VISIT OUR WEB SITE AT
WEATHER.GOV/OKX FOR FURTHER DETAILS OR UPDATES.