www.erh.noaa.gov   
NOAA logo - Click to go to the NOAA homepage NWS logo
Pittsburgh, PA
Watch Warning Advisory Summary
Enter Your "City, ST" or zip code   

FLOOD WATCH


FLOOD WATCH
NATIONAL WEATHER SERVICE BUFFALO NY
338 PM EST FRI NOV 21 2014

...SIGNIFICANT FLOODING POSSIBLE EARLY NEXT WEEK...

TWO SIGNIFICANT LAKE EFFECT SNOW EVENTS THIS WEEK HAVE BROUGHT A
VERY DEEP SNOWPACK ACROSS PORTIONS OF WESTERN NEW YORK. THIS
SNOWPACK NOW STORES A LARGE QUANTITY OF WATER. SNOW SURVEYS TODAY
INDICATE THAT THE SNOWPACK IN THE HARDEST HIT AREAS CONTAINS
BETWEEN 4 AND 6 INCHES OF WATER EQUIVALENT. AFTER THE LAKE EFFECT
SNOW ENDS...A WARMING TREND WILL START EARLY THIS WEEKEND. BY
SATURDAY AFTERNOON AIR TEMPERATURES WILL RISE ABOVE FREEZING
AND THEN REMAIN ABOVE FREEZING THROUGH TUESDAY NIGHT. DAYTIME
HIGHS WILL RISE TO NEAR 50 F DEGREES ON SUNDAY...AND NEAR 60 F
DEGREES ON MONDAY. IN ADDITION TO THE WARMING AIR TEMPERATURES...A
SOUTHERLY BREEZE AND RISING DEW POINTS WILL MAKE FOR A MORE
EFFICIENT MELTING OF THE SNOWPACK.

AT FIRST THE SNOWPACK WILL ABSORB MUCH OF THE WATER FROM THE SNOW
MELT. HOWEVER AS THE SNOWPACK RIPENS...AND WITH THE ADDITION OF A
HALF INCH OR SO OF RAINFALL SUNDAY NIGHT AND MONDAY...THE
POTENTIAL FOR FLOODING WILL RAPIDLY INCREASE.

PEOPLE LIVING IN AREAS PRONE TO FLOODING...AND WHERE SIGNIFICANT
AMOUNTS OF SNOW FELL SHOULD TAKE TIME IN ADVANCE OF THE WARMING
TO PREPARE FOR THE POTENTIAL FOR SIGNIFICANT FLOODING EARLY NEXT
WEEK. IN ADDITION TO CREEKS AND SMALL STREAMS FLOODING THEIR
BANKS...GENERAL FLOODING IS POSSIBLE ACROSS TOWNS WHERE SEVERAL
FEET OF SNOW FELL. DRAINS MAY BE CLOGGED WITH SNOW AND LEAVES...
AND THE MASSIVE AMOUNTS OF SNOW MAY PREVENT WATER FROM DRAINING
EFFICIENTLY.

NYZ019-020-220445-
/O.EXA.KBUF.FA.A.0008.141123T1800Z-141126T1200Z/
/00000.0.SM.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CHAUTAUQUA-CATTARAUGUS-
INCLUDING THE CITIES OF...JAMESTOWN...OLEAN
338 PM EST FRI NOV 21 2014

...FLOOD WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH WEDNESDAY
MORNING...

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS EXPANDED THE

* FLOOD WATCH TO INCLUDE A PORTION OF WESTERN NEW YORK...
  INCLUDING THE FOLLOWING COUNTIES...CATTARAUGUS AND CHAUTAUQUA.
  THE GREATEST FLOOD RISK IS IN THE FAR NORTHERN PORTION OF THESE
  COUNTIES WHERE THE GREATEST SNOWPACK EXISTS.

* FROM SUNDAY AFTERNOON THROUGH WEDNESDAY MORNING.

* SNOW MELT FROM THE RECENT SIGNIFICANT LAKE EFFECT SNOW EVENTS
  COMBINED WITH RAINFALL EARLY NEXT WEEK WILL BRING THE POTENTIAL
  FOR FLOODING.

* SMALLER STREAMS AND CREEKS WILL BE PRONE TO FLOODING FROM SNOW
  MELT. THIS INCLUDES SOME OF THE CREEKS THAT FLOW THROUGH DUNKIRK
  AND SILVER CREEK. TOWNS THAT RECEIVED SIGNIFICANT AMOUNTS OF
  SNOW WILL ALSO HAVE POTENTIAL FOR URBAN FLOODING FROM THE SNOW
  MELT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLOOD WATCH MEANS THERE IS A POTENTIAL FOR FLOODING BASED ON
CURRENT FORECASTS. YOU SHOULD MONITOR LATER FORECASTS AND BE
ALERT FOR POSSIBLE FLOOD WARNINGS. THOSE LIVING IN AREAS PRONE TO
FLOODING SHOULD BE PREPARED TO TAKE ACTION SHOULD FLOODING
DEVELOP. STAY TUNED TO WEATHER RADIO OR OTHER RADIO AND TV
STATIONS FOR FURTHER DETAILS OR UPDATES

&&

$$


HAZARDOUS WEATHER OUTLOOK


HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE WILMINGTON OH
449 PM EST FRI NOV 21 2014

INZ050-058-059-066-073>075-080-KYZ089>093-OHZ026-034-035-042>046-
051>056-060>064-070>072-077-078-222200-
WAYNE-FAYETTE IN-UNION IN-FRANKLIN IN-RIPLEY-DEARBORN-OHIO-
SWITZERLAND-CARROLL-GALLATIN-BOONE-KENTON-CAMPBELL-HARDIN-MERCER-
AUGLAIZE-DARKE-SHELBY-LOGAN-UNION OH-DELAWARE-MIAMI-CHAMPAIGN-CLARK-
MADISON-FRANKLIN OH-LICKING-PREBLE-MONTGOMERY-GREENE-FAYETTE OH-
PICKAWAY-BUTLER-WARREN-CLINTON-HAMILTON-CLERMONT-
449 PM EST FRI NOV 21 2014

THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL
INDIANA...SOUTHEAST INDIANA...NORTHERN KENTUCKY...CENTRAL
OHIO...MIAMI VALLEY OF OHIO...SOUTHWEST OHIO AND WEST CENTRAL OHIO.

.DAY ONE...TONIGHT.

SCATTERED SHOWERS ARE EXPECTED TO DEVELOP LATE TONIGHT. WITH
TEMPERATURES NEAR OR BELOW FREEZING SOME OF THE PRECIPITATION MAY
FALL AS LIGHT FREEZING RAIN.

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

LIGHT FREEZING RAIN MAY BE POSSIBLE EARLY SATURDAY MORNING.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

$$


SPECIAL WEATHER STATEMENT


SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON OH
442 PM EST FRI NOV 21 2014

INZ050-058-059-066-073>075-080-KYZ089>093-OHZ026-034-035-042>046-
051>056-060>064-070>072-077-078-220600-
WAYNE-FAYETTE IN-UNION IN-FRANKLIN IN-RIPLEY-DEARBORN-OHIO-
SWITZERLAND-CARROLL-GALLATIN-BOONE-KENTON-CAMPBELL-HARDIN-MERCER-
AUGLAIZE-DARKE-SHELBY-LOGAN-UNION OH-DELAWARE-MIAMI-CHAMPAIGN-
CLARK-MADISON-FRANKLIN OH-LICKING-PREBLE-MONTGOMERY-GREENE-
FAYETTE OH-PICKAWAY-BUTLER-WARREN-CLINTON-HAMILTON-CLERMONT-
INCLUDING THE CITIES OF...RICHMOND...CONNERSVILLE...LIBERTY...
BROOKVILLE...VERSAILLES...LAWRENCEBURG...RISING SUN...VEVAY...
CARROLLTON...WARSAW...BURLINGTON...INDEPENDENCE...ALEXANDRIA...
KENTON...CELINA...WAPAKONETA...GREENVILLE...SIDNEY...
BELLEFONTAINE...MARYSVILLE...DELAWARE...PIQUA...URBANA...
SPRINGFIELD...LONDON...COLUMBUS...NEWARK...EATON...DAYTON...
XENIA...WASHINGTON COURT HOUSE...CIRCLEVILLE...HAMILTON...
LEBANON...WILMINGTON...CINCINNATI...MILFORD
442 PM EST FRI NOV 21 2014

...SOME LIGHT FREEZING RAIN POSSIBLE LATE TONIGHT INTO SATURDAY
MORNING...

SCATTERED LIGHT RAIN SHOWERS ARE EXPECTED TO DEVELOP LATE TONIGHT.
SURFACE TEMPERATURES WILL BE NEAR OR A LITTLE BELOW FREEZING WHEN
THE PRECIPITATION BEGINS SO SOME OF THE SHOWERS MAY FALL AS
FREEZING RAIN. THIS MAY LEAD TO SOME ICY SPOTS ON AREA ROADWAYS
LATE TONIGHT AND INTO SATURDAY MORNING. THE FREEZING RAIN THREAT
WILL DECREASE THROUGH MID MORNING AS TEMPERATURES RISE ABOVE
FREEZING AND THE PRECIPITATION TAPERS OFF.

IF YOU ARE PLANNING TRAVEL LATE TONIGHT OR SATURDAY MORNING...BE
PREPARED FOR THE POSSIBILITY OF SOME SLICK ROADWAYS.

$$









National Weather Service
Disclaimer
Last Modified: July 30, 2004
Privacy Policy