Lake Effect Snow Advisory 49, NWS Buffalo, NY

000 
WWUS41 KBUF 160313
WSWBUF

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE BUFFALO NY
1013 PM EST TUE DEC 15 2009

...STEADIER LAKE SNOWS EXPECTED TO IMPACT AREAS EAST OF LAKE
ONTARIO WEDNESDAY...

.COLD WESTERLY WINDS FLOWING ACROSS LAKE ONTARIO WILL GENERATE A
BAND OF LAKE EFFECT SNOW EAST OF THE LAKE ON WEDNESDAY. EXPECT
THE STEADIEST SNOW TO IMPACT OSWEGO AND SOUTHERN LEWIS COUNTIES
DURING THE AFTERNOON. THE SNOW BANDS WILL SETTLE BACK TO THE
SOUTH TOWARD EVENING AS THE WINDS SHIFT TO THE NORTHWEST.

NYZ006-008-161115-
/O.CON.KBUF.LE.Y.0049.091216T1200Z-091216T2300Z/
OSWEGO-LEWIS-
INCLUDING THE CITIES OF...OSWEGO...LOWVILLE
1013 PM EST TUE DEC 15 2009

...LAKE EFFECT SNOW ADVISORY REMAINS IN EFFECT FROM 7 AM TO 6 PM
EST WEDNESDAY...

A LAKE EFFECT SNOW ADVISORY REMAINS IN EFFECT FROM 7 AM TO 6 PM
EST WEDNESDAY. 

A BAND OF SNOW FROM LAKE ONTARIO WILL SHIFT TO THE NORTH AND
BRING 3 TO 5 INCHES OF SNOW TO THE AREA WEDNESDAY. EXPECT THE
STEADIER SNOW TO SETTLE TO THE SOUTH TOWARD EVENING AS THE WINDS
SHIFT TO THE NORTHWEST.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN LAKE EFFECT SNOW THE WEATHER CAN VARY FROM LOCALLY HEAVY SNOW
IN NARROW BANDS TO CLEAR SKIES JUST A FEW MILES AWAY. IF YOU WILL
BE TRAVELING ACROSS THE REGION BE PREPARED FOR RAPID CHANGES IN
ROAD AND VISIBILITY CONDITIONS. STAY TUNED TO NOAA WEATHER RADIO
OR YOUR FAVORITE SOURCE OF WEATHER INFORMATION FOR THE LATEST
UPDATES. ADDITIONAL DETAILS CAN ALSO BE FOUND AT
WWW.WEATHER.GOV/BUFFALO.

&&

$$

TMA

000 
WWUS41 KBUF 160904
WSWBUF

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE BUFFALO NY
404 AM EST WED DEC 16 2009

...LAKE SNOWS WILL IMPACT AREAS EAST OF LAKE ONTARIO TODAY...

.COLD WESTERLY WINDS WILL SPREAD EASTWARD...GENERATING A BAND OF
LAKE EFFECT SNOW ON LAKE ONTARIO. A WEAK BAND IS EXPECTED TO
INITIALLY SET UP BETWEEN ROCHESTER AND OSWEGO THROUGH MID-
MORNING...BUT THIS BAND WILL BECOME MORE ORGANIZED AND MOVE
NORTHWARD TO EAST OF LAKE ONTARIO THIS AFTERNOON. THE BAND IS
EXPECTED TO MAKE A SUBTLE SHIFT TO THE NORTH LATE
AFTERNOON...BEFORE ABRUPTLY SHIFTING SOUTH THIS EVENING AS AN
ARCTIC BOUNDARY SHIFTS WINDS TO THE NORTHWEST. EXPECT LAKE EFFECT
BANDS TO BE MOST PERSISTENT ACROSS OSWEGO COUNTY AND SOUTHERN
PORTIONS OF LEWIS COUNTY.

NYZ006-008-161715-
/O.CON.KBUF.LE.Y.0049.091216T1200Z-091216T2300Z/
OSWEGO-LEWIS-
INCLUDING THE CITIES OF...OSWEGO...LOWVILLE
404 AM EST WED DEC 16 2009

...LAKE EFFECT SNOW ADVISORY REMAINS IN EFFECT FROM 7 AM THIS
MORNING TO 6 PM EST THIS EVENING...

A LAKE EFFECT SNOW ADVISORY REMAINS IN EFFECT FROM 7 AM THIS
MORNING TO 6 PM EST THIS EVENING. 

A BAND OF SNOW FROM LAKE ONTARIO WILL SHIFT NORTH INTO OSWEGO
COUNTY AND SOUTHERN PORTIONS OF LEWIS COUNTY THIS MORNING. THE
BAND WILL REMAIN STEADY ACROSS THESE LOCATIONS THROUGH THIS
AFTERNOON...PERHAPS MAKING A SUBTLE SHIFT NORTHWARD LATE
AFTERNOON. THE BAND WILL WEAKEN AND ABRUPTLY SHIFT SOUTH THIS
EVENING WITH THE PASSAGE OF A COLD FRONT.

EXPECT 3 TO 5 INCHES OF SNOW ACROSS MOST OF OSWEGO COUNTY AND IN
LEWIS COUNTY SOUTH OF LOWVILLE. SNOWFALL RATES OF ONE TO TWO
INCHES AN HOUR ARE POSSIBLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN LAKE EFFECT SNOW THE WEATHER CAN VARY FROM LOCALLY HEAVY SNOW
IN NARROW BANDS TO CLEAR SKIES JUST A FEW MILES AWAY. IF YOU WILL
BE TRAVELING ACROSS THE REGION BE PREPARED FOR RAPID CHANGES IN
ROAD AND VISIBILITY CONDITIONS. STAY TUNED TO NOAA WEATHER RADIO
OR YOUR FAVORITE SOURCE OF WEATHER INFORMATION FOR THE LATEST
UPDATES. ADDITIONAL DETAILS CAN ALSO BE FOUND AT
WWW.WEATHER.GOV/BUFFALO.

&&

$$

APFFEL

000 
WWUS41 KBUF 161446
WSWBUF

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE BUFFALO NY
946 AM EST WED DEC 16 2009

...LAKE SNOWS WILL IMPACT AREAS EAST AND SOUTHEAST OF LAKE
ONTARIO TODAY...

.COLD WESTERLY WINDS WILL CONTINUE TO ALLOW LAKE EFFECT SNOW TO
BECOME BETTER ORGANIZED EAST AND SOUTHEAST OF LAKE ONTARIO TODAY.
THE LAKE SNOWS ARE EXPECTED TO FOCUS PRIMARILY ON OSWEGO COUNTY
AND THE SOUTHERN TUG HILL REGION TODAY. WINDS WILL SHIFT MORE TO
THE NORTHWEST LATE THIS AFTERNOON AND EARLY THIS EVENING. THIS
WILL MOVE THE BAND MORE TO THE SOUTHEAST CORNER OF THE LAKE THIS
EVENING BEFORE THE ENTIRE BAND MOVES ONSHORE ALONG THE SOUTH SHORE
OF THE LAKE OVERNIGHT. 

NYZ006-162300-
/O.UPG.KBUF.LE.Y.0049.000000T0000Z-091216T2300Z/
/O.NEW.KBUF.LE.W.0011.091216T1446Z-091217T0200Z/
OSWEGO-
INCLUDING THE CITY OF...OSWEGO
946 AM EST WED DEC 16 2009

...LAKE EFFECT SNOW WARNING IN EFFECT UNTIL 9 PM EST THIS
EVENING...

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A LAKE EFFECT
SNOW WARNING...WHICH IS IN EFFECT UNTIL 9 PM EST THIS EVENING.
THIS UPGRADES THE LAKE EFFECT SNOW ADVISORY WHICH WAS PREVIOUSLY
IN EFFECT.

A BROAD AREA OF LAKE EFFECT SNOW WILL CONTINUE OVER MUCH OF OSWEGO
COUNTY TODAY. THIS BAND IS EXPECTED TO FOCUS AND BECOME MORE
INTENSE LATE THIS AFTERNOON BEFORE SHIFTING SOUTH THROUGH THE
COUNTY EARLY THIS EVENING.

SNOWFALL RATES OF ONE TO TWO INCHES AN HOUR ARE POSSIBLE IN THE
MOST INTENSE PORTION OF THIS BAND. EXPECT TOTAL ACCUMULATIONS OF 6
TO 9 INCHES IN THE MOST PERSISTENT SNOWS THROUGH THIS EVENING. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN LAKE EFFECT SNOW THE WEATHER CAN VARY FROM LOCALLY HEAVY SNOW
IN NARROW BANDS TO CLEAR SKIES JUST A FEW MILES AWAY. IF YOU WILL
BE TRAVELING ACROSS THE REGION BE PREPARED FOR RAPID CHANGES IN
ROAD AND VISIBILITY CONDITIONS. STAY TUNED TO NOAA WEATHER RADIO
OR YOUR FAVORITE SOURCE OF WEATHER INFORMATION FOR THE LATEST
UPDATES. ADDITIONAL DETAILS CAN ALSO BE FOUND AT
WWW.WEATHER.GOV/BUFFALO.

&&

$$

NYZ004-005-162300-
/O.EXB.KBUF.LE.Y.0049.000000T0000Z-091217T0500Z/
WAYNE-NORTHERN CAYUGA-
INCLUDING THE CITIES OF...NEWARK...FAIR HAVEN
946 AM EST WED DEC 16 2009

...LAKE EFFECT SNOW ADVISORY IN EFFECT UNTIL MIDNIGHT EST
TONIGHT...

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A LAKE EFFECT
SNOW ADVISORY...WHICH IS IN EFFECT UNTIL MIDNIGHT EST TONIGHT. 

A BROAD AREA OF LAKE EFFECT SNOW WILL CONTINUE TO CLIP FAR
NORTHEAST WAYNE COUNTY AND PORTIONS OF NORTHERN CAYUGA COUNTY
TODAY. MOST OF THE SNOW TODAY WILL BE CONFINED NORTHWEST OF A LINE
FROM WOLCOTT TO CATO. BY EARLY THIS EVENING LAKE SNOWS ARE
EXPECTED TO FOCUS INTO A SINGLE MORE INTENSE BAND AND SINK SOUTH
ACROSS NORTHERN CAYUGA AND MUCH OF WAYNE COUNTY. THIS MAY BRING A
QUICK BURST OF HEAVY SNOW ALL OF THE AREA.

EXPECT 3 TO 6 INCHES OF ACCUMULATION WHERE THE LAKE SNOW PERSISTS
THE LONGEST. SNOWFALL RATES MAY BRIEFLY REACH 1 TO 2 INCHES PER
HOUR EARLY THIS EVENING AS THE BAND MOVES SOUTH ACROSS THE AREA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN LAKE EFFECT SNOW THE WEATHER CAN VARY FROM LOCALLY HEAVY SNOW
IN NARROW BANDS TO CLEAR SKIES JUST A FEW MILES AWAY. IF YOU WILL
BE TRAVELING ACROSS THE REGION BE PREPARED FOR RAPID CHANGES IN
ROAD AND VISIBILITY CONDITIONS. STAY TUNED TO NOAA WEATHER RADIO
OR YOUR FAVORITE SOURCE OF WEATHER INFORMATION FOR THE LATEST
UPDATES. ADDITIONAL DETAILS CAN ALSO BE FOUND AT
WWW.WEATHER.GOV/BUFFALO.

&&

$$

NYZ007-162300-
/O.EXA.KBUF.LE.Y.0049.000000T0000Z-091216T2300Z/
JEFFERSON-
INCLUDING THE CITY OF...WATERTOWN
946 AM EST WED DEC 16 2009

...LAKE EFFECT SNOW ADVISORY IN EFFECT UNTIL 6 PM EST THIS
EVENING...

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A LAKE EFFECT
SNOW ADVISORY...WHICH IS IN EFFECT UNTIL 6 PM EST THIS EVENING. 

A BAND OF LAKE EFFECT SNOW WILL CONTINUE TO CLIP THE FAR SOUTHERN
END OF JEFFERSON COUNTY THROUGH LATE THIS AFTERNOON. MOST OF THE
SNOW WILL BE CONFINED TO AREAS SOUTH OF ADAMS. THE LAKE SNOWS ARE
EXPECTED TO SHIFT SOUTH OUT OF THE COUNTY BY EARLY THIS EVENING.

EXPECT 4 TO 6 INCHES OF ACCUMULATION ACROSS THE FAR SOUTHERN
PORTION OF THE COUNTY TODAY...WITH THE GREATEST AMOUNTS RIGHT
ALONG THE OSWEGO COUNTY LINE FROM MANNSVILLE TO WORTH. SNOWFALL
RATES WILL REACH 1 TO 2 INCHES PER HOUR IN THE MOST INTENSE
PORTION OF THIS BAND.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN LAKE EFFECT SNOW THE WEATHER CAN VARY FROM LOCALLY HEAVY SNOW
IN NARROW BANDS TO CLEAR SKIES JUST A FEW MILES AWAY. IF YOU WILL
BE TRAVELING ACROSS THE REGION BE PREPARED FOR RAPID CHANGES IN
ROAD AND VISIBILITY CONDITIONS. STAY TUNED TO NOAA WEATHER RADIO
OR YOUR FAVORITE SOURCE OF WEATHER INFORMATION FOR THE LATEST
UPDATES. ADDITIONAL DETAILS CAN ALSO BE FOUND AT
WWW.WEATHER.GOV/BUFFALO.

&&

$$

NYZ008-162300-
/O.CON.KBUF.LE.Y.0049.000000T0000Z-091216T2300Z/
LEWIS-
INCLUDING THE CITY OF...LOWVILLE
946 AM EST WED DEC 16 2009

...LAKE EFFECT SNOW ADVISORY REMAINS IN EFFECT UNTIL 6 PM EST
THIS EVENING...

A LAKE EFFECT SNOW ADVISORY REMAINS IN EFFECT UNTIL 6 PM EST THIS
EVENING. 

A BROAD AREA OF LAKE EFFECT SNOW WILL CONTINUE TO EXTEND INTO THE
SOUTHERN HALF OF LEWIS COUNTY THROUGH LATE THIS AFTERNOON. THE
MOST PERSISTENT AND HEAVIEST SNOW WILL BE FOUND ACROSS THE HIGHER
TERRAIN OF THE TUG HILL FROM MONTAGUE TO OSCEOLA. THE LAKE SNOWS
ARE EXPECTED TO MOVE SOUTH OUT OF THE COUNTY BY EARLY THIS
EVENING.

EXPECT TOTAL ACCUMULATIONS OF 4 TO 7 INCHES ON THE TUG HILL...WITH
2 TO 4 INCHES ACROSS THE LOWER ELEVATIONS OF THE UPPER BLACK RIVER
VALLEY FROM TURIN TO PORT LEYDEN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN LAKE EFFECT SNOW THE WEATHER CAN VARY FROM LOCALLY HEAVY SNOW
IN NARROW BANDS TO CLEAR SKIES JUST A FEW MILES AWAY. IF YOU WILL
BE TRAVELING ACROSS THE REGION BE PREPARED FOR RAPID CHANGES IN
ROAD AND VISIBILITY CONDITIONS. STAY TUNED TO NOAA WEATHER RADIO
OR YOUR FAVORITE SOURCE OF WEATHER INFORMATION FOR THE LATEST
UPDATES. ADDITIONAL DETAILS CAN ALSO BE FOUND AT
WWW.WEATHER.GOV/BUFFALO.

&&

$$

HITCHCOCK

000 
WWUS41 KBUF 162031
WSWBUF

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE BUFFALO NY
331 PM EST WED DEC 16 2009

...LAKE SNOWS WILL IMPACT AREAS EAST AND SOUTHEAST OF LAKE
ONTARIO THROUGH THE FIRST HALF OF TONIGHT...

.COLD WESTERLY WINDS WILL CONTINUE TO ALLOW LAKE EFFECT SNOW TO
BECOME BETTER ORGANIZED OVER LAKE ONTARIO EXTENDING INTO OSWEGO
COUNTY THROUGH LATE THIS AFTERNOON. A TROUGH OF LOW PRESSURE WILL
DROP SOUTH ACROSS THE LAKE THIS EVENING AND SHIFT THE WINDS MORE TO
THE NORTHWEST. THIS WILL PICK UP THE BAND OF LAKE EFFECT SNOW AND
PUSH THE ENTIRE BAND ONSHORE FROM ORLEANS COUNTY ACROSS THE
ROCHESTER AREA ALL THE WAY EAST TO OSWEGO COUNTY. AS THE BAND
MOVES ONSHORE...IT WILL LIKELY BE ACCOMPANIED BY A BURST OF HEAVY
SNOWFALL THIS EVENING. OVERNIGHT THE BAND IS EXPECTED TO PUSH
FARTHER INLAND AND WEAKEN.

NYZ006-170200-
/O.CON.KBUF.LE.W.0011.000000T0000Z-091217T0200Z/
OSWEGO-
INCLUDING THE CITY OF...OSWEGO
331 PM EST WED DEC 16 2009

...LAKE EFFECT SNOW WARNING REMAINS IN EFFECT UNTIL 9 PM EST THIS
EVENING...

A LAKE EFFECT SNOW WARNING REMAINS IN EFFECT UNTIL 9 PM EST THIS
EVENING. 

LAKE EFFECT SNOW WILL CONTINUE TO PRODUCE DIFFICULT TRAVEL
CONDITIONS THROUGH THIS EVENING. A BAND OF HEAVY LAKE EFFECT SNOW
OVER CENTRAL OSWEGO COUNTY WILL CONTINUE TO SETTLE SOUTH INTO THE
SOUTHERN PORTION OF THE COUNTY THROUGH THIS EVENING. THE BAND IS
EXPECTED TO EXIT THE COUNTY BY MID EVENING.

SNOWFALL RATES OF ONE TO TWO INCHES PER HOUR ARE LIKELY IN THE
MOST INTENSE PORTION OF THIS BAND. EXPECT TOTAL ACCUMULATIONS OF 6
TO 9 INCHES IN THE MOST PERSISTENT LAKE SNOWS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN LAKE EFFECT SNOW THE WEATHER CAN VARY FROM LOCALLY HEAVY SNOW
IN NARROW BANDS TO CLEAR SKIES JUST A FEW MILES AWAY. IF YOU WILL
BE TRAVELING ACROSS THE REGION BE PREPARED FOR RAPID CHANGES IN
ROAD AND VISIBILITY CONDITIONS. STAY TUNED TO NOAA WEATHER RADIO
OR YOUR FAVORITE SOURCE OF WEATHER INFORMATION FOR THE LATEST
UPDATES. ADDITIONAL DETAILS CAN ALSO BE FOUND AT
WWW.WEATHER.GOV/BUFFALO.

&&

$$

NYZ002-003-170430-
/O.EXB.KBUF.LE.Y.0049.091216T2100Z-091217T0700Z/
ORLEANS-MONROE-
INCLUDING THE CITIES OF...MEDINA...ROCHESTER
331 PM EST WED DEC 16 2009

...LAKE EFFECT SNOW ADVISORY IN EFFECT UNTIL 2 AM EST THURSDAY...

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A LAKE EFFECT
SNOW ADVISORY...WHICH IS IN EFFECT UNTIL 2 AM EST THURSDAY. 

A BURST OF HEAVY SNOW THIS EVENING MAY PRODUCE DIFFICULT TRAVEL
ALONG THE SOUTH SHORE OF LAKE ONTARIO...INCLUDING GREATER
ROCHESTER. A BAND OF LAKE EFFECT SNOW IS EXPECTED TO DROP SOUTH
ACROSS ORLEANS AND MONROE COUNTIES THIS EVENING. SNOW MAY BEGIN TO
ACCUMULATE DURING THE EVENING RUSH HOUR...WITH THE HEAVIEST SNOW
EXPECTED BETWEEN 6PM AND 11 PM. THE BAND OF LAKE SNOW IS EXPECTED
TO PUSH FURTHER INLAND AND WEAKEN AFTER MIDNIGHT.

SNOWFALL RATES MAY BRIEFLY REACH 1 TO 2 INCHES PER HOUR IN THE
MOST INTENSE PORTION OF THIS BAND. EXPECT TOTAL ACCUMULATIONS OF 3
TO 5 INCHES IN THE MOST PERSISTENT BANDS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN LAKE EFFECT SNOW THE WEATHER CAN VARY FROM LOCALLY HEAVY SNOW
IN NARROW BANDS TO CLEAR SKIES JUST A FEW MILES AWAY. IF YOU WILL
BE TRAVELING ACROSS THE REGION BE PREPARED FOR RAPID CHANGES IN
ROAD AND VISIBILITY CONDITIONS. STAY TUNED TO NOAA WEATHER RADIO
OR YOUR FAVORITE SOURCE OF WEATHER INFORMATION FOR THE LATEST
UPDATES. ADDITIONAL DETAILS CAN ALSO BE FOUND AT
WWW.WEATHER.GOV/BUFFALO.

&&

$$

NYZ007-008-162300-
/O.CON.KBUF.LE.Y.0049.000000T0000Z-091216T2300Z/
JEFFERSON-LEWIS-
INCLUDING THE CITIES OF...WATERTOWN...LOWVILLE
331 PM EST WED DEC 16 2009

...LAKE EFFECT SNOW ADVISORY REMAINS IN EFFECT UNTIL 6 PM EST
THIS EVENING...

A LAKE EFFECT SNOW ADVISORY REMAINS IN EFFECT UNTIL 6 PM EST THIS
EVENING. 

A BROAD AREA OF SNOW SHOWERS AND BRIEF SNOW SQUALLS WILL CONTINUE
ACROSS MUCH OF JEFFERSON AND LEWIS COUNTIES THROUGH EARLY EVENING.
THESE SQUALLS WILL BRIEFLY REDUCE VISIBILITY TO A QUARTER MILE
OR LESS AT TIMES. EXPECT LOCAL ADDITIONAL ACCUMULATIONS OF 1 TO 3
INCHES THROUGH EARLY THIS EVENING BEFORE THE ACTIVITY BEGINS TO
WEAKEN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN LAKE EFFECT SNOW THE WEATHER CAN VARY FROM LOCALLY HEAVY SNOW
IN NARROW BANDS TO CLEAR SKIES JUST A FEW MILES AWAY. IF YOU WILL
BE TRAVELING ACROSS THE REGION BE PREPARED FOR RAPID CHANGES IN
ROAD AND VISIBILITY CONDITIONS. STAY TUNED TO NOAA WEATHER RADIO
OR YOUR FAVORITE SOURCE OF WEATHER INFORMATION FOR THE LATEST
UPDATES. ADDITIONAL DETAILS CAN ALSO BE FOUND AT
WWW.WEATHER.GOV/BUFFALO.

&&

$$

NYZ004-005-170430-
/O.CON.KBUF.LE.Y.0049.000000T0000Z-091217T0500Z/
WAYNE-NORTHERN CAYUGA-
INCLUDING THE CITIES OF...NEWARK...FAIR HAVEN
331 PM EST WED DEC 16 2009

...LAKE EFFECT SNOW ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT EST
TONIGHT...

A LAKE EFFECT SNOW ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT EST
TONIGHT. 

A BURST OF HEAVY SNOW THIS EVENING MAY PRODUCE DIFFICULT TRAVEL
ALONG THE SOUTH SHORE OF LAKE ONTARIO. A BROAD AREA OF MAINLY
LIGHT LAKE EFFECT SNOW WILL CONTINUE THROUGH THE LATE AFTERNOON.
THIS EVENING A BAND OF HEAVY LAKE EFFECT SNOW IS EXPECTED TO
SETTLE SLOWLY SOUTH ACROSS WAYNE AND NORTHERN CAYUGA COUNTIES. THE
BAND IS EXPECTED TO PUSH SOUTH AND WEST OF THE AREA BY AROUND
MIDNIGHT.

SNOWFALL RATES MAY BRIEFLY REACH 1 TO 2 INCHES PER HOUR EARLY
THIS EVENING AS THE BAND MOVES SOUTH ACROSS THE AREA. EXPECT TOTAL
ACCUMULATIONS OF 3 TO 6 INCHES IN THE MOST PERSISTENT BANDS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN LAKE EFFECT SNOW THE WEATHER CAN VARY FROM LOCALLY HEAVY SNOW
IN NARROW BANDS TO CLEAR SKIES JUST A FEW MILES AWAY. IF YOU WILL
BE TRAVELING ACROSS THE REGION BE PREPARED FOR RAPID CHANGES IN
ROAD AND VISIBILITY CONDITIONS. STAY TUNED TO NOAA WEATHER RADIO
OR YOUR FAVORITE SOURCE OF WEATHER INFORMATION FOR THE LATEST
UPDATES. ADDITIONAL DETAILS CAN ALSO BE FOUND AT
WWW.WEATHER.GOV/BUFFALO.

&&

$$

HITCHCOCK

000 
WWUS41 KBUF 162259
WSWBUF

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE BUFFALO NY
559 PM EST WED DEC 16 2009

...LAKE SNOWS WILL IMPACT AREAS SOUTHEAST OF LAKE ONTARIO THROUGH
THE FIRST HALF OF TONIGHT...

.A TROUGH OF LOW PRESSURE WILL DROP SOUTH ACROSS THE LAKE THIS
EVENING AND SHIFT THE WINDS TO THE NORTHWEST. THIS WILL PICK UP
THE BAND OF LAKE EFFECT SNOW AND PUSH THE ENTIRE BAND ONSHORE FROM
ORLEANS COUNTY ACROSS THE ROCHESTER AREA ALL THE WAY EAST TO
OSWEGO COUNTY. AS THE BAND MOVES ONSHORE...IT WILL LIKELY BE
ACCOMPANIED BY A BURST OF HEAVY SNOWFALL THIS EVENING. OVERNIGHT
THE BAND IS EXPECTED TO PUSH FARTHER INLAND AND WEAKEN.

NYZ007-008-170000-
/O.EXP.KBUF.LE.Y.0049.000000T0000Z-091216T2300Z/
JEFFERSON-LEWIS-
INCLUDING THE CITIES OF...WATERTOWN...LOWVILLE
559 PM EST WED DEC 16 2009

...LAKE EFFECT SNOW ADVISORY WILL EXPIRE AT 6 PM EST THIS
EVENING...

THE LAKE EFFECT SNOW ADVISORY WILL EXPIRE AT 6 PM EST THIS
EVENING. 

SCATTERED SNOW SHOWERS WILL CONTINUE THIS EVENING. ANY ADDITIONAL
ACCUMULATION WILL BE LIMITED TO AN INCH OR LESS.

$$

NYZ006-170200-
/O.CON.KBUF.LE.W.0011.000000T0000Z-091217T0200Z/
OSWEGO-
INCLUDING THE CITY OF...OSWEGO
559 PM EST WED DEC 16 2009

...LAKE EFFECT SNOW WARNING REMAINS IN EFFECT UNTIL 9 PM EST THIS
EVENING...

A LAKE EFFECT SNOW WARNING REMAINS IN EFFECT UNTIL 9 PM EST THIS
EVENING. 

LAKE EFFECT SNOW WILL CONTINUE TO PRODUCE DIFFICULT TRAVEL
CONDITIONS THROUGH THIS EVENING. A BAND OF HEAVY LAKE EFFECT SNOW
OVER CENTRAL OSWEGO COUNTY WILL CONTINUE TO SETTLE SOUTH INTO THE
SOUTHERN PORTION OF THE COUNTY THROUGH THIS EVENING. THE BAND IS
EXPECTED TO EXIT THE COUNTY BY MID EVENING.

SNOWFALL RATES OF ONE TO TWO INCHES PER HOUR ARE LIKELY IN THE
MOST INTENSE PORTION OF THIS BAND. EXPECT TOTAL ACCUMULATIONS OF
6 TO 9 INCHES IN THE MOST PERSISTENT LAKE SNOWS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN LAKE EFFECT SNOW THE WEATHER CAN VARY FROM LOCALLY HEAVY SNOW
IN NARROW BANDS TO CLEAR SKIES JUST A FEW MILES AWAY. IF YOU WILL
BE TRAVELING ACROSS THE REGION BE PREPARED FOR RAPID CHANGES IN
ROAD AND VISIBILITY CONDITIONS. STAY TUNED TO NOAA WEATHER RADIO
OR YOUR FAVORITE SOURCE OF WEATHER INFORMATION FOR THE LATEST
UPDATES. ADDITIONAL DETAILS CAN ALSO BE FOUND AT
WWW.WEATHER.GOV/BUFFALO.

&&

$$

NYZ004-005-170500-
/O.CON.KBUF.LE.Y.0049.000000T0000Z-091217T0500Z/
WAYNE-NORTHERN CAYUGA-
INCLUDING THE CITIES OF...NEWARK...FAIR HAVEN
559 PM EST WED DEC 16 2009

...LAKE EFFECT SNOW ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT EST
TONIGHT...

A LAKE EFFECT SNOW ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT EST
TONIGHT. 

A BURST OF HEAVY SNOW THIS EVENING MAY PRODUCE DIFFICULT TRAVEL
ALONG THE SOUTH SHORE OF LAKE ONTARIO. A BROAD AREA OF MAINLY
LIGHT LAKE EFFECT SNOW WILL CONTINUE THROUGH THE LATE AFTERNOON.
THIS EVENING A BAND OF HEAVY LAKE EFFECT SNOW IS EXPECTED TO
SETTLE SLOWLY SOUTH ACROSS WAYNE AND NORTHERN CAYUGA COUNTIES.
THE BAND IS EXPECTED TO PUSH SOUTH AND WEST OF THE AREA BY AROUND
MIDNIGHT.

SNOWFALL RATES MAY BRIEFLY REACH 1 TO 2 INCHES PER HOUR EARLY
THIS EVENING AS THE BAND MOVES SOUTH ACROSS THE AREA. EXPECT
TOTAL ACCUMULATIONS OF 3 TO 6 INCHES IN THE MOST PERSISTENT
BANDS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN LAKE EFFECT SNOW THE WEATHER CAN VARY FROM LOCALLY HEAVY SNOW
IN NARROW BANDS TO CLEAR SKIES JUST A FEW MILES AWAY. IF YOU WILL
BE TRAVELING ACROSS THE REGION BE PREPARED FOR RAPID CHANGES IN
ROAD AND VISIBILITY CONDITIONS. STAY TUNED TO NOAA WEATHER RADIO
OR YOUR FAVORITE SOURCE OF WEATHER INFORMATION FOR THE LATEST
UPDATES. ADDITIONAL DETAILS CAN ALSO BE FOUND AT
WWW.WEATHER.GOV/BUFFALO.

&&

$$

NYZ002-003-170700-
/O.CON.KBUF.LE.Y.0049.000000T0000Z-091217T0700Z/
ORLEANS-MONROE-
INCLUDING THE CITIES OF...MEDINA...ROCHESTER
559 PM EST WED DEC 16 2009

...LAKE EFFECT SNOW ADVISORY REMAINS IN EFFECT UNTIL 2 AM EST
THURSDAY...

A LAKE EFFECT SNOW ADVISORY REMAINS IN EFFECT UNTIL 2 AM EST
THURSDAY. 

A BURST OF HEAVY SNOW THIS EVENING MAY PRODUCE DIFFICULT TRAVEL
ALONG THE SOUTH SHORE OF LAKE ONTARIO...INCLUDING GREATER
ROCHESTER. A BAND OF LAKE EFFECT SNOW IS EXPECTED TO DROP SOUTH
ACROSS ORLEANS AND MONROE COUNTIES THIS EVENING. SNOW MAY BEGIN
TO ACCUMULATE DURING THE EVENING RUSH HOUR...WITH THE HEAVIEST
SNOW EXPECTED BETWEEN 6PM AND 11 PM. THE BAND OF LAKE SNOW IS
EXPECTED TO PUSH FURTHER INLAND AND WEAKEN AFTER MIDNIGHT.

SNOWFALL RATES MAY BRIEFLY REACH 1 TO 2 INCHES PER HOUR IN THE
MOST INTENSE PORTION OF THIS BAND. EXPECT TOTAL ACCUMULATIONS OF
3 TO 5 INCHES IN THE MOST PERSISTENT BANDS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN LAKE EFFECT SNOW THE WEATHER CAN VARY FROM LOCALLY HEAVY SNOW
IN NARROW BANDS TO CLEAR SKIES JUST A FEW MILES AWAY. IF YOU WILL
BE TRAVELING ACROSS THE REGION BE PREPARED FOR RAPID CHANGES IN
ROAD AND VISIBILITY CONDITIONS. STAY TUNED TO NOAA WEATHER RADIO
OR YOUR FAVORITE SOURCE OF WEATHER INFORMATION FOR THE LATEST
UPDATES. ADDITIONAL DETAILS CAN ALSO BE FOUND AT
WWW.WEATHER.GOV/BUFFALO.

&&

$$

TMA

000 
WWUS41 KBUF 170037
WSWBUF

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE BUFFALO NY
737 PM EST WED DEC 16 2009

...LAKE SNOWS WILL IMPACT AREAS SOUTH OF LAKE ONTARIO THROUGH THE
FIRST HALF OF TONIGHT...

.A COLD NORTHWEST FLOW OF AIR WILL KEEP MULTIPLE BANDS OF LAKE
EFFECT SNOW ACROSS THE SOUTH SHORE OF LAKE ONTARIO THIS EVENING.
THE LAKE EFFECT SNOW IS EXPECTED TO WEAKEN OVERNIGHT.

NYZ006-170145-
/O.CAN.KBUF.LE.W.0011.000000T0000Z-091217T0200Z/
OSWEGO-
INCLUDING THE CITY OF...OSWEGO
737 PM EST WED DEC 16 2009

...LAKE EFFECT SNOW WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS CANCELLED THE LAKE
EFFECT SNOW WARNING. 

SCATTERED SNOW SHOWERS WILL CONTINUE TONIGHT. ANY ADDITIONAL
ACCUMULATION WILL BE LIMITED TO AN INCH OR LESS.

$$

NYZ004-005-170500-
/O.CON.KBUF.LE.Y.0049.000000T0000Z-091217T0500Z/
WAYNE-NORTHERN CAYUGA-
INCLUDING THE CITIES OF...NEWARK...FAIR HAVEN
737 PM EST WED DEC 16 2009

...LAKE EFFECT SNOW ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT EST
TONIGHT...

A LAKE EFFECT SNOW ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT EST
TONIGHT. 

BANDS OF LAKE EFFECT SNOW WILL CONTINUE THIS EVENING. SNOWFALL
RATES MAY BRIEFLY REACH 1 INCH PER HOUR. EXPECT TOTAL
ACCUMULATIONS OF 3 TO 6 INCHES IN THE MOST PERSISTENT BANDS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN LAKE EFFECT SNOW THE WEATHER CAN VARY FROM LOCALLY HEAVY SNOW
IN NARROW BANDS TO CLEAR SKIES JUST A FEW MILES AWAY. IF YOU WILL
BE TRAVELING ACROSS THE REGION BE PREPARED FOR RAPID CHANGES IN
ROAD AND VISIBILITY CONDITIONS. STAY TUNED TO NOAA WEATHER RADIO
OR YOUR FAVORITE SOURCE OF WEATHER INFORMATION FOR THE LATEST
UPDATES. ADDITIONAL DETAILS CAN ALSO BE FOUND AT
WWW.WEATHER.GOV/BUFFALO.

&&

$$

NYZ002-003-170700-
/O.CON.KBUF.LE.Y.0049.000000T0000Z-091217T0700Z/
ORLEANS-MONROE-
INCLUDING THE CITIES OF...MEDINA...ROCHESTER
737 PM EST WED DEC 16 2009

...LAKE EFFECT SNOW ADVISORY REMAINS IN EFFECT UNTIL 2 AM EST
THURSDAY...

A LAKE EFFECT SNOW ADVISORY REMAINS IN EFFECT UNTIL 2 AM EST
THURSDAY. 

BANDS OF LAKE EFFECT SNOW WILL CONTINUE THIS EVENING. SNOWFALL
RATES MAY BRIEFLY REACH 1 INCH PER HOUR. EXPECT TOTAL
ACCUMULATIONS OF 3 TO 6 INCHES IN THE MOST PERSISTENT BANDS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN LAKE EFFECT SNOW THE WEATHER CAN VARY FROM LOCALLY HEAVY SNOW
IN NARROW BANDS TO CLEAR SKIES JUST A FEW MILES AWAY. IF YOU WILL
BE TRAVELING ACROSS THE REGION BE PREPARED FOR RAPID CHANGES IN
ROAD AND VISIBILITY CONDITIONS. STAY TUNED TO NOAA WEATHER RADIO
OR YOUR FAVORITE SOURCE OF WEATHER INFORMATION FOR THE LATEST
UPDATES. ADDITIONAL DETAILS CAN ALSO BE FOUND AT
WWW.WEATHER.GOV/BUFFALO.

&&

$$

TMA

000 
WWUS41 KBUF 170243
WSWBUF

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE BUFFALO NY
943 PM EST WED DEC 16 2009

...HEAVY LAKE SNOWS WILL IMPACT AREAS SOUTH OF LAKE ONTARIO
THROUGH THE FIRST HALF OF TONIGHT...

.A COLD NORTHWEST FLOW OF AIR WILL KEEP MULTIPLE BANDS OF LAKE
EFFECT SNOW ACROSS THE SOUTH SHORE OF LAKE ONTARIO THIS EVENING.
THE LAKE EFFECT SNOW IS EXPECTED TO WEAKEN OVERNIGHT.

NYZ004-005-170500-
/O.CON.KBUF.LE.Y.0049.000000T0000Z-091217T0500Z/
WAYNE-NORTHERN CAYUGA-
INCLUDING THE CITIES OF...NEWARK...FAIR HAVEN
943 PM EST WED DEC 16 2009

...LAKE EFFECT SNOW ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT EST
TONIGHT...

A LAKE EFFECT SNOW ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT EST
TONIGHT. 

BANDS OF LAKE EFFECT SNOW WILL CONTINUE THIS EVENING. SNOWFALL
RATES MAY BRIEFLY REACH ONE INCH PER HOUR. EXPECT TOTAL
ACCUMULATIONS OF 3 TO 6 INCHES IN THE MOST PERSISTENT BANDS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN LAKE EFFECT SNOW THE WEATHER CAN VARY FROM LOCALLY HEAVY SNOW
IN NARROW BANDS TO CLEAR SKIES JUST A FEW MILES AWAY. IF YOU WILL
BE TRAVELING ACROSS THE REGION BE PREPARED FOR RAPID CHANGES IN
ROAD AND VISIBILITY CONDITIONS. STAY TUNED TO NOAA WEATHER RADIO
OR YOUR FAVORITE SOURCE OF WEATHER INFORMATION FOR THE LATEST
UPDATES. ADDITIONAL DETAILS CAN ALSO BE FOUND AT
WWW.WEATHER.GOV/BUFFALO.

&&

$$

NYZ002-003-170700-
/O.CON.KBUF.LE.Y.0049.000000T0000Z-091217T0700Z/
ORLEANS-MONROE-
INCLUDING THE CITIES OF...MEDINA...ROCHESTER
943 PM EST WED DEC 16 2009

...LAKE EFFECT SNOW ADVISORY REMAINS IN EFFECT UNTIL 2 AM EST
THURSDAY...

A LAKE EFFECT SNOW ADVISORY REMAINS IN EFFECT UNTIL 2 AM EST
THURSDAY. 

BANDS OF HEAVY LAKE EFFECT SNOW WILL CONTINUE THROUGH MIDNIGHT.
SNOWFALL RATES OF ONE TO ONE AND A HALF INCHES PER HOUR ARE LIKELY
WITHIN THE MOST INTENSE PORTION OF THE BAND. EXPECT TOTAL
ACCUMULATIONS OF 6 TO 8 INCHES IN THE MOST PERSISTENT BANDS...
ESPECIALLY AROUND THE GREECE...HAMLIN...KENDALL...GATES...
BROCKPORT AND HILTON AREAS.

THE LAKE SNOWS WILL SHIFT TO THE SOUTHWEST TOWARD MIDNIGHT AND
DURING THE OVERNIGHT HOURS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN LAKE EFFECT SNOW THE WEATHER CAN VARY FROM LOCALLY HEAVY SNOW
IN NARROW BANDS TO CLEAR SKIES JUST A FEW MILES AWAY. IF YOU WILL
BE TRAVELING ACROSS THE REGION BE PREPARED FOR RAPID CHANGES IN
ROAD AND VISIBILITY CONDITIONS. STAY TUNED TO NOAA WEATHER RADIO
OR YOUR FAVORITE SOURCE OF WEATHER INFORMATION FOR THE LATEST
UPDATES. ADDITIONAL DETAILS CAN ALSO BE FOUND AT
WWW.WEATHER.GOV/BUFFALO.

&&

$$

TMA

000 
WWUS41 KBUF 170451
WSWBUF

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE BUFFALO NY
1151 PM EST WED DEC 16 2009

...LAKE SNOWS WILL CONTINUE TO IMPACT AN AREA SOUTH OF LAKE
ONTARIO INTO THE EARLY OVERNIGHT...

.A COLD NORTHWEST FLOW OF AIR WILL KEEP MULTIPLE BANDS OF LAKE
EFFECT SNOW GOING ACROSS THE SOUTH SHORE OF LAKE ONTARIO INTO THE
EARLY OVERNIGHT. THE LAKE EFFECT SNOW IS EXPECTED TO WEAKEN
BEFORE SUNRISE.

NYZ004-005-170600-
/O.EXP.KBUF.LE.Y.0049.000000T0000Z-091217T0500Z/
WAYNE-NORTHERN CAYUGA-
INCLUDING THE CITIES OF...NEWARK...FAIR HAVEN
1151 PM EST WED DEC 16 2009

...LAKE EFFECT SNOW ADVISORY WILL EXPIRE AT MIDNIGHT EST
TONIGHT...

THE LAKE EFFECT SNOW ADVISORY WILL EXPIRE AT MIDNIGHT EST
TONIGHT. 

WEAK BANDS OF LAKE EFFECT SNOW WILL STILL BE POSSIBLE THROUGH THE
OVERNIGHT HOURS. ANY ADDITIONAL ACCUMULATION WILL BE AN INCH OR
LESS. THEREFORE...THE ADVISORY WILL BE ALLOWED TO EXPIRE.

$$

NYZ002-003-170700-
/O.CON.KBUF.LE.Y.0049.000000T0000Z-091217T0700Z/
ORLEANS-MONROE-
INCLUDING THE CITIES OF...MEDINA...ROCHESTER
1151 PM EST WED DEC 16 2009

...LAKE EFFECT SNOW ADVISORY REMAINS IN EFFECT UNTIL 2 AM EST
THURSDAY...

A LAKE EFFECT SNOW ADVISORY REMAINS IN EFFECT UNTIL 2 AM EST
THURSDAY. 

MULTIPLE BANDS OF LAKE EFFECT SNOW WILL CONTINUE INTO THE EARLY
OVERNIGHT HOURS. SNOWFALL INTENSITIES HAVE DROPPED OFF AND THE
WEAKENING TREND WILL CONTINUE OVERNIGHT. ADDITIONAL LOCAL
ACCUMULATIONS OF 1 TO 3 INCHES WILL BE POSSIBLE THROUGH 2 AM. 

THE STEADIEST SNOWS ARE EXPECTED TO STAY ACROSS ORLEANS
COUNTY...EXTENDING INTO SOUTHWEST MONROE COUNTY AROUND THE
BROCKPORT AND CHURCHVILLE AREAS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN LAKE EFFECT SNOW THE WEATHER CAN VARY FROM LOCALLY HEAVY SNOW
IN NARROW BANDS TO CLEAR SKIES JUST A FEW MILES AWAY. IF YOU WILL
BE TRAVELING ACROSS THE REGION BE PREPARED FOR RAPID CHANGES IN
ROAD AND VISIBILITY CONDITIONS. STAY TUNED TO NOAA WEATHER RADIO
OR YOUR FAVORITE SOURCE OF WEATHER INFORMATION FOR THE LATEST
UPDATES. ADDITIONAL DETAILS CAN ALSO BE FOUND AT
WWW.WEATHER.GOV/BUFFALO.

&&

$$

TMA

000 
WWUS41 KBUF 170644
WSWBUF

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE BUFFALO NY
144 AM EST THU DEC 17 2009

...LAKE SNOWS WILL CONTINUE TO DIMINISH...

.THE NORTHWEST FLOW OF ARCTIC AIR WHICH RESULTED IN SIGNIFICANT
LAKE SNOWS OF UP TO 6 INCHES OVER THE REGION WEDNESDAY EVENING
WILL CONTINUE TO WEAKEN WITH SNOWS MOSTLY DISSIPATING BY DAYBREAK.

NYZ002-003-170745-
/O.CAN.KBUF.LE.Y.0049.000000T0000Z-091217T0700Z/
ORLEANS-MONROE-
INCLUDING THE CITIES OF...MEDINA...ROCHESTER
144 AM EST THU DEC 17 2009

...LAKE EFFECT SNOW ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS CANCELLED THE LAKE
EFFECT SNOW ADVISORY. 

BANDS OF LAKE SNOW OFF LAKE ONTARIO WILL CONTINUE TO WEAKEN AND
MIGRATE WESTWARD FOR THE REST OF THE OVERNIGHT HOURS. ONLY AN INCH
OR SO ADDITIONAL ACCUMULATION IS EXPECTED.

$$

SFM

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BUFFALO NY
343 PM EST TUE DEC 15 2009

.SYNOPSIS...
LOW PRESSURE MOVING INTO THE CANADIAN MARITIMES THIS EVENING WILL
DRAW PROGRESSIVELY COLDER AIR SOUTHWARD ACROSS OUR REGION OVERNIGHT
AND WEDNESDAY. THIS WILL PRODUCE BANDS OF LAKE EFFECT SNOW SOUTHEAST
OF LAKES ERIE AND ONTARIO...ESPECIALLY LATE TONIGHT THROUGH
WEDNESDAY NIGHT. THE COLDER THAN NORMAL WEATHER WILL PERSIST THROUGH
THE REST OF THE WEEK AS THE LOW CONTINUES SLOWLY TO THE NORTHEAST
AND HIGHER PRESSURE BUILDS IN FROM THE UPPER GREAT LAKES.

&&

.NEAR TERM /THROUGH WEDNESDAY/...
WHILE THE INFLUENCE FROM THE DEPARTING NEW ENGLAND LOW HAS
ENDED...THE LIFT FROM THE APPROACHING UPPER LEVEL TROUGH AND
ACCOMPANYING SHORT WAVE IS GENERATING SOME LIGHT SNOW OVER WESTERN
NEW YORK AND THE GENESEE VALLEY THIS AFTERNOON...WITH LITTLE OR NO
ACCUMULATION SO FAR. EXPECT THE SNOW TO PICK UP A BIT AND IMPACT THE
ENTIRE CWA WITH AN INCH OR TWO ACCUMULATION...GENERALLY BETWEEN 00Z
AND 06Z AS THE SHORT WAVE TRACKS EAST ACROSS THE AREA.

THE SYNOPTIC SNOW WILL BE ENHANCED SOUTHEAST OF THE LAKES AS 850 MB
TEMPERATURES COOL TO ABOUT -13C BY 06Z. WHILE THERE WILL BE DECENT
LOW LEVEL MOISTURE AND FAVORABLE ICE CRYSTAL GROWTH WITHIN THE CLOUD
LAYER...THE PASSING SHORT WAVE WILL TEND TO INCREASE THE WIND SHEAR
WITHIN THE STEERING LAYER. AFTER THE SHORT WAVE CLEARS THE
AREA...THE LOW LEVEL MOISTURE IS FORECAST TO DECREASE WHILE THE
INVERSION LOWERS. THUS...IT DOES NOT APPEAR THAT THE FAVORABLE
PARAMETERS FOR LAKE EFFECT SNOW WILL COME TOGETHER AT THE RIGHT TIME
TO GENERATE WELL ORGANIZED BANDS OF SNOW TONIGHT. BASED ON
THIS...STILL PLANT TO KEEP ACCUMULATIONS BELOW ADVISORY CRITERIA
TONIGHT...BUT THIS SITUATION WILL HAVE TO MONITORED CLOSELY THIS
EVENING.

ON WEDNESDAY...THE LAKE SNOWS WILL HAVE THE GREATEST IMPACT EAST OF
LAKE ONTARIO...ESPECIALLY DURING THE AFTERNOON AS THE BOUNDARY LAYER
WINDS LINE UP MORE FROM THE WEST...THEREBY INCREASING THE FETCH
ACROSS THE LAKE. WITH GOOD SNOW GROWTH FORECAST WITHIN THE MOIST
LOWER LEVELS...BELIEVE SNOWFALL TOTALS WILL REACH ADVISORY CRITERIA
ACROSS MUCH OF OSWEGO AND SOUTHERN LEWIS COUNTIES. RIGHT NOW...IT
LOOKS LIKE THE STEADIEST SNOW WILL STAY JUST SOUTH OF JEFFERSON
COUNTY.

OFF LAKE ERIE...EXPECT LAKE SNOWS TO BE ONGOING ACROSS THE SOUTHERN
TIER...BUT THE SUBSIDENCE INVERSION WILL BE LOWER AND THE FAVORABLE
SNOW GROWTH IS NOT FORECAST TO EXTEND AS DEEPLY INTO THE MOIST LOW
LEVEL AIR. THEREFORE...ADDITIONAL ACCUMULATIONS SHOULD REMAIN UNDER
ADVISORY CRITERIA.

ELSEWHERE ACROSS THE AREA...EXPECT MAINLY DRY...BUT COLD CONDITIONS
WEDNESDAY AS AREA TEMPERATURES HOVER IN LOWER TO MIDDLE 20S.

&&

.SHORT TERM /WEDNESDAY NIGHT THROUGH FRIDAY NIGHT/...
THE EARLY PART OF THIS FORECAST PERIOD IS A LITTLE TRICKY AS A SHORT
WAVE AND A SURFACE TROUGH WILL BE SLIDING SOUTH ACROSS THE FORECAST
AREA DURING THE EARLY TO MID EVENING HOURS. MOST AREAS WILL SEE SOME
MEASURABLE SNOW AS THE TROUGH SWINGS THROUGH AND THE LAKE EFFECT
ACTIVITY OFF LAKE ONTARIO THAT IS EXPECTED TO BE FOCUSED ACROSS
OSWEGO AND SOUTHERN LEWIS COUNTIES WEDNESDAY SHOULD MIGRATE
SOUTHWARD. AFTER THE SHIFT WE EXPECT LIGHTER ACTIVITY WITH MULTIPLE
SMALLER BANDS WHICH WILL EXTEND BACK WESTWARD ALL THE WAY INTO THE
NIAGARA FRONTIER. THE LAKE EFFECT SNOW ADVISORY FOR OSWEGO AND
SOUTHERN LEWIS COUNTY THROUGH 23Z WILL NOT LIKELY HAVE TO BE
EXTENDED BUT WE WILL KEEP AN EYE ON THIS.

ACTIVITY WILL CONTINUE TO WIND DOWN DURING THE DAY THURSDAY AS HIGH
PRESSURE BEGINS TO BUILD IN FROM THE CENTRAL GREAT LAKES. EVEN
THOUGH THE AIR WILL BE VERY COLD...THE MODEL SOUNDINGS INDICATE A
LOWERING CAP WITH A SHORT FETCH. STILL ENOUGH MOISTURE IN THE
CRYSTAL GROWTH REGION THOUGH FOR THE FIRST PART OF THE DAY.

THURSDAY NIGHT WILL LIKELY BE THE COLDEST NIGHT OF THE YOUNG SEASON
BECAUSE OF A COLD AIR MASS AND GOOD RADIATIONAL COOLING CONDITIONS.
WE EXPECT TEENS IN THE WARMEST AREAS...SINGLE NUMBERS IN THE
SOUTHERN TIER INLAND AREAS AND EVEN ZERO OR COLDER IN THE NORTH
COUNTRY.

MAINLY DRY AND COLD WEATHER WILL PREVAIL FRIDAY AND FRIDAY NIGHT AS
HIGH PRESSURE CONTINUES TO BUILD OVER THE AREA.

&&

.LONG TERM /SATURDAY THROUGH TUESDAY/...
SOME FAIRLY SIGNIFICANT MODEL DIFFERENCES THROUGH THIS PERIOD SO
CONFIDENCE IS NOT VERY HIGH AS FAR AS TIMING ANY PRECIPITATION.
HOWEVER ALL MODEL SOLUTIONS ARE PAINTING SLIGHTLY BELOW NORMAL
TEMPERATURES AS AN UPPER TROUGH PERSISTS ACROSS EASTERN CANADA. WE
WILL BE BASING THIS PART OF THE FORECAST MAINLY ON HPC GUIDANCE
WHICH IS FAIRLY CLOSE TO THE 00Z ECMWF.

FOR THE DETAILS...
SATURDAY AND SATURDAY NIGHT LOOK DRY AT THIS POINT AS A SURFACE HIGH
NOSES IN ACROSS THE LOWER LAKES AND LOW PRESSURE ORGANIZES ACROSS
THE SOUTHERN ATLANTIC STATES. SUNDAY WILL MOSTLY LIKELY BE DRY AS
WELL AS THE LOW STRENGTHENS ALONG THE CAROLINA COAST BUT WE WILL
INCLUDE CHANCE POPS DUE TO MODEL UNCERTAINTY AND CYCLONIC FLOW WITH
AN UPPER TROUGH REMAINING ACROSS EASTERN CANADA.

THE AFOREMENTIONED LOW IS FORECAST TO MOVE TO NEAR THE CANADIAN
MARITIMES MONDAY AND TUESDAY. TEMPERATURES SHOULD STAY SLIGHTLY
BELOW NORMAL IN THE NORTHWEST FLOW ON THE WEST SIDE OF THIS SYSTEM
BUT NO IMPORTANT WEATHER APPEARS TO BE ON THE HORIZON. WE WILL CARRY
CHANCE POPS FOR BOTH DAYS BECAUSE OF THE NORTHWEST CYCLONIC FLOW.

&&

.AVIATION /21Z TUESDAY THROUGH SUNDAY/...
PLENTY OF LOW LEVEL MOISTURE WILL REMAIN ACROSS THE AREA THROUGH
MUCH OF THE PERIOD WITH IFR TO LOW MVFR CIGS THE GENERAL
RULE. SOME LIFR CIGS ARE ALSO POSSIBLE AT TIMES THIS MORNING.

PRECIPITATION THIS MORNING WILL BE RATHER SPOTTY AND IN THE FORM
OF JUST SOME LIGHT RAIN OR DRIZZLE...THEN SOME SNOW SHOWERS WILL
BECOME MORE LIKELY FOR LATER THIS AFTERNOON AND THIS EVENING AS
UPPER TROUGHING/COLDER AIR ALOFT WORKS INTO THE REGION...WITH IFR
CONDITIONS BECOMING LIKELY FOR A PERIOD AS THESE WORK THROUGH THE
REGION. SOME LIMITED LAKE SNOWS WILL ALSO SET UP SOUTHEAST OF THE
LAKES LATE TODAY AND THEN CONTINUE THROUGH THE NIGHT...WITH IFR
ALSO LIKELY IN THE AFFECTED AREAS.

OUTLOOK...
WEDNESDAY AND THURSDAY...VFR/MVFR IN SNOW SHOWERS...ESP ESE OF LAKES
WHERE SOME IFR IS POSSIBLE IN LAKE SNOWS WED/WED NT.
FRIDAY AND SATURDAY...MAINLY VFR.

&&

.MARINE...
SMALL CRAFT ADVISORIES WILL BE CONTINUED AND EXTENDED INTO AT LEAST
WEDNESDAY NIGHT AS A COLD NORTHWEST FLOW PERSISTS ACROSS THE LOWER
LAKES REGION IN THE WAKE OF LOW PRESSURE MOVING INTO THE CANADIAN
MARITIMES. HIGHER PRESSURE WILL BEGIN TO BUILD IN THURSDAY. THIS
WILL ALLOW THE WINDS AND WAVES TO SUBSIDE SOMEWHAT AS THE PRESSURE
GRADIENT WEAKENS.

&&

.BUF WATCHES/WARNINGS/ADVISORIES...
NY...LAKE EFFECT SNOW ADVISORY FROM 7 AM TO 6 PM EST WEDNESDAY FOR
     NYZ006-008.
MARINE...SMALL CRAFT ADVISORY UNTIL 3 AM EST THURSDAY FOR LEZ040-041.
         SMALL CRAFT ADVISORY UNTIL 3 AM EST THURSDAY FOR
         LOZ042>045.

&&

SYNOPSIS...SAGE
NEAR TERM...TJP
SHORT TERM...SAGE
LONG TERM...SAGE
AVIATION...TJP
MARINE...SAGE

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BUFFALO NY
434 AM EST TUE DEC 15 2009

NYZ001>003-010>014-019>021-085-161100-
NIAGARA-ORLEANS-MONROE-NORTHERN ERIE-GENESEE-WYOMING-LIVINGSTON-
ONTARIO-CHAUTAUQUA-CATTARAUGUS-ALLEGANY-SOUTHERN ERIE-
434 AM EST TUE DEC 15 2009

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF WESTERN NEW YORK.

.DAY ONE...TODAY AND TONIGHT.

THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

THIS PRODUCT...ALONG WITH OTHER WATCHES...WARNINGS...ADVISORIES...
AND STATEMENTS ISSUED BY THE NATIONAL WEATHER SERVICE OFFICE IN
BUFFALO CAN BE FOUND ON THE INTERNET AT HTTP://WWW.WEATHER.GOV/BUF

NYZ004>006-161100-
WAYNE-NORTHERN CAYUGA-OSWEGO-
434 AM EST TUE DEC 15 2009

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF WESTERN AND NORTH
CENTRAL NEW YORK.

.DAY ONE...TODAY AND TONIGHT.

LAKE EFFECT SNOW WILL DEVELOP TONIGHT. LIGHT SNOW ACCUMULATIONS
ARE GENERALLY EXPECTED...BUT THERE IS A CHANCE THAT PERSISTENT
BANDS MAY PRODUCE ADVISORY CRITERIA SNOWFALL.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

LAKE EFFECT SNOW WILL LAST THROUGH WEDNESDAY. LIGHT SNOW
ACCUMULATIONS ARE GENERALLY EXPECTED...BUT THERE IS A CHANCE THAT
PERSISTENT BANDS MAY PRODUCE ADVISORY CRITERIA SNOWFALL.

THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

THIS PRODUCT...ALONG WITH OTHER WATCHES...WARNINGS...ADVISORIES...
AND STATEMENTS ISSUED BY THE NATIONAL WEATHER SERVICE OFFICE IN
BUFFALO CAN BE FOUND ON THE INTERNET AT HTTP://WWW.WEATHER.GOV/BUF

NYZ007-008-161100-
JEFFERSON-LEWIS-
434 AM EST TUE DEC 15 2009

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL NEW YORK.

.DAY ONE...TODAY AND TONIGHT.

THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

BITTERLY COLD AIR WILL MOVE INTO THE NORTH COUNTRY BEHIND AN
ARCTIC FRONTAL BOUNDARY WEDNESDAY NIGHT. EXPECT WIND CHILLS WELL
BELOW ZERO WEDNESDAY NIGHT THROUGH THURSDAY NIGHT.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

THIS PRODUCT...ALONG WITH OTHER WATCHES...WARNINGS...ADVISORIES...
AND STATEMENTS ISSUED BY THE NATIONAL WEATHER SERVICE OFFICE IN
BUFFALO CAN BE FOUND ON THE INTERNET AT HTTP://WWW.WEATHER.GOV/BUF

LEZ020-040-041-LOZ042>045-062>065-SLZ022-024-161100-
UPPER NIAGARA RIVER AND BUFFALO HARBOR-
LAKE ERIE NEARSHORE WATERS FROM RIPLEY TO DUNKIRK-
LAKE ERIE NEARSHORE WATERS FROM DUNKIRK TO BUFFALO-
LAKE ONTARIO NEARSHORE WATERS FROM THE NIAGARA RIVER TO HAMLIN BEACH-
LAKE ONTARIO NEARSHORE WATERS FROM HAMLIN BEACH TO SODUS BAY-
LAKE ONTARIO NEARSHORE WATERS FROM SODUS BAY TO MEXICO BAY-
LAKE ONTARIO NEARSHORE WATERS FROM MEXICO BAY TO THE SAINT LAWRENCE
RIVER-
LAKE ONTARIO OPEN WATERS FROM THE NIAGARA RIVER TO HAMLIN BEACH-
LAKE ONTARIO OPEN WATERS FROM HAMLIN BEACH TO SODUS BAY-
LAKE ONTARIO OPEN WATERS FROM SODUS BAY TO MEXICO BAY-
LAKE ONTARIO OPEN WATERS FROM MEXICO BAY TO THE SAINT LAWRENCE RIVER-
SAINT LAWRENCE RIVER FROM CAPE VINCENT TO OGDENSBURG-
SAINT LAWRENCE RIVER FROM OGDENSBURG TO SAINT REGIS-
434 AM EST TUE DEC 15 2009

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF LAKE ERIE...LAKE
ONTARIO AND SAINT LAWRENCE RIVER.

.DAY ONE...TODAY AND TONIGHT.

THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

THIS PRODUCT...ALONG WITH OTHER WATCHES...WARNINGS...ADVISORIES...
AND STATEMENTS ISSUED BY THE NATIONAL WEATHER SERVICE OFFICE IN
BUFFALO CAN BE FOUND ON THE INTERNET AT HTTP://WWW.WEATHER.GOV/BUF