Flash Flood Warning 17, NWS New York, NY

NYZ014>017-NJZ001-005-007-015-160200-

SPECIAL WEATHER STATEMENT - STRONG THUNDERSTORMS POSSIBLE
AND WEATHER MAP DISCUSSION
NATIONAL WEATHER SERVICE NEW YORK NY
235 PM EDT WED JUL 15 1992

...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR SOUTHEASTERN NEW YORK
AND NORTHERN NEW JERSEY TIL 9 PM...

...STRONG THUNDERSTORMS ARE LIKELY THIS AFTERNOON AND EVENING...ALONG
WITH THE THREAT OF LOCALIZED FLOODING...

A FRONT WAS DRAPED THROUGH SOUTHEASTERN NEW YORK AT MIDAFTERNOON. A
SULTRY AND UNSTABLE AIRMASS WAS IN PLACE OVER THE TRI-STATE REGION...
AND THE HEAT OF THE DAY WAS BEGINNING TO SET OFF THUNDERSTORMS AT 230
PM. STORMS WERE BEGINNING TO FORM OVER THE LOWER HUDSON VALLEY AND
OVER NORTHEASTERN PENNSYLVANIA. HELPING STORMS TO FORM WAS THE
APPROACH OF AN UPPER LEVEL LOW PRESSURE SYSTEM.

OUR ATMOSPHERE IS VERY UNSTABLE...MEANING THAT STORMS WILL GROW
RAPIDLY ONCE THEY GET STARTED SINCE SURFACE TEMPERATURES ARE VERY WARM
AND UPPER AIR TEMPERATURES ARE COLD. THE HIGH AMOUNT OF MOISTURE IS
ALSO A FACTOR WHICH WILL CAUSE STORMS TO GROW QUICKLY. THIS HIGH
HUMIDITY THROUGH A DEEP LAYER IN THE ATMOSPHERE IS ALSO SIGNIFICANT
BECAUSE SOME STORMS WILL CAUSE LOCALLY HEAVY RAINS WHICH COULD RESULT
IN FLOODING OF LOW-LYING AND POORLY-DRAINED AREAS DUE TO THE LARGE
VOLUME OF RAIN IN A SHORT TIME.

A SEVERE THUNDERSTORM WATCH MEANS THAT SEVERE STORMS ARE POSSIBLE IN
AND NEAR THE WATCH AREA...SO WATCH THE SKY TO SEE IF STORMS ARE
APPROACHING YOUR LOCATION. ALSO...LISTEN FOR POSSIBLE WARNINGS FOR
YOUR COUNTY WHICH MEAN SEVERE WEATHER HAS BEEN DETECTED OR SPOTTED SO
THAT YOU CAN TAKE PROTECTIVE ACTION. HAZARDS TO GUARD AGAINST ARE
STRONG DAMAGING WINDS...HAIL...AND ESPECIALLY CLOUD TO GROUND
LIGHTNING. THE BEST PROTECTION IS AFFORDED BY MOVING INSIDE A STURDY
BUILDING UNTIL THE STORMS PASS. MOTORISTS WILL ALSO NEED TO WATCH OUT
FOR THE EVENING RUSH...AS PONDING OF WATER ON ROADS COULD CAUSE A LOSS
OF CONTROL AND HEAVY RAINS CAN LOWER VISIBILITY ABRUPTLY.

PLEASE REMAIN AWARE OF THE LATEST WEATHER UPDATES...INCLUDING THE
POSSIBLE ISSUANCE OF WARNINGS OR ADDITIONAL WATCHES FOR THE REST OF
TODAY AND EARLY TONIGHT...SINCE CONDITIONS CAN CHANGE RAPIDLY FROM ONE
HOUR TO THE NEXT. LISTEN TO NOAA WEATHER RADIO OR YOUR LOCAL
COMMERCIAL RADIO OR TELEVISION STATIONS FOR CHANGING WEATHER
CONDITIONS.

ONCE THE FRONT SETTLES SOUTHEAST OF OUR REGION DURING TONIGHT...STORM
ACTIVITY SHOULD DIMINISH THIS EVENING OR BY MIDNIGHT...AND LEAVE US
WITH PARTLY CLOUDY SKIES AND LESS HUMID CONDITIONS FOR THURSDAY AND
THURSDAY NIGHT. AN APPROACHING WARM FRONT FRIDAY COULD GIVE RISE TO
MORE SCATTERED SHOWERS OR THUNDERSHOWERS DURING FRIDAY.

FURTHER STATEMENTS WILL BE ISSUED AS CONDITIONS WARRANT.

JRP

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE NEW YORK NY
245 PM EDT WED JULY 15 1992

...PLEASE DO NOT USE AFTER 4 PM...

...SEVERE THUNDERSTORM WATCH NUMBER 626 REMAINS IN EFFECT
FOR SOUTHEASTERN NEW YORK...INCLUDING NEW YORK CITY AND LONG ISLAND
AND MOST OF NEW JERSEY UNTIL 900 PM EDT...

RADAR INDICATED THUNDERSTORMS PRODUCING VERY HEAVY RAIN ACROSS
PENNSYLVANIA BETWEEN SCRANTON AND HARRISBURG. THESE THUNDERSTORMS
HAVE INCREASED IN INTENSITY AND COVERAGE OVER THE LAST HOUR.

ISOLATED RAIN SHOWERS WERE FOUND NEAR HARTFORD CONNECTICUT AND
PITTSFIELD MASSACHUSETTS.

THE THUNDERSTORMS AND SHOWERS WERE MOVING EAST AT 40 MPH.

A SEVERE THUNDERSTORMS WATCH MEANS THAT CONDITIONS ARE FAVORABLE
FOR THE FORMATION OF SEVERE THUNDERSTORMS IN AND CLOSE TO
THE WATCH AREA.

STAY TUNED TO NOAA WEATHER RADIO FOR LATER STATEMENTS AND
POSSIBLE WARNINGS.

NYZ014>017-NJZ001-005-007-015-152100-

SPECIAL WEATHER STATEMENT - STRONG THUNDERSTORM OVER EXTREME NORTHERN
  WESTCHESTER COUNTY
NATIONAL WEATHER SERVICE NEW YORK NY
310 PM EDT WED JUL 15 1992

...A VERY STRONG THUNDERSTORM WAS LOCATED ALONG THE PUTNAM -
WESTCHESTER COUNTY NEW YORK BORDER...

AT 305 PM THIS THUNDERSTORM WAS MOVING INTO SOUTHERN PUTNAM COUNTY...
BUT THE NORTHERN FRINGES OF WESTCHESTER COUNTY COULD GET SOME EFFECT
FROM THIS STORM. WATCH OUT FOR DANGEROUS LIGHTNING AND STRONG GUSTY
WINDS...AS WELL AS HEAVY RAIN...AS THIS THUNDERSTORM MOVES
EASTNORTHEASTWARD AROUND 30 MILES AN HOUR. THE TOWNS OF SHRUB OAK AND
JEFFERSON VALLEY MAY BE IN THE PATH OF THIS STORM.

FURTHER STATEMENTS WILL BE ISSUED AS CONDITIONS WARRANT.

JRP