Alert archive / New York / Lake Effect Snow Warnings in 2009
Lake Effect Snow Warning 11, NWS Buffalo, NY
NWS Buffalo, NY issued this lake effect snow warning at Dec 16, 2009, 9:46 AM EST for Oswego County, New York. It was in force for 10 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Dec 16, 2009, 9:46 AM EST (14:46 UTC)
- Expired
- Dec 16, 2009, 7:37 PM EST
- In force
- 10 hr
- Issued by
- NWS Buffalo, NY
County Oswego County, NY
The radar
The Ft Drum radar (KTYX), 54 km from the middle of the area, began a volume at 14:49 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 2.8 hours before the alert went out and 210 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1133 m above ground
- 0-6 km bulk shear
- 61 kt
- 0-1 km storm-relative helicity
- 40 m²/s²
- 0-3 km storm-relative helicity
- 149 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
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
3 follow-up statements
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
What forecasters said that day
The local office's own words before this lake effect snow warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Buffalo, NY wrote its last area forecast discussion before this lake effect snow warning went out at Dec 16, 7:03 AM EST, 2 hours 43 minutes earlier.
Area forecast discussion, Dec 16, 7:03 AM EST, 2 hours 43 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BUFFALO NY
703 AM EST WED DEC 16 2009
.SYNOPSIS...
LOW PRESSURE IN THE CANADIAN MARITIMES WILL DRAW PROGRESSIVELY
COLDER AIR SOUTHWARD ACROSS OUR REGION. THIS WILL PRODUCE BANDS OF
LAKE EFFECT SNOW SOUTHEAST OF LAKES ERIE AND ONTARIO TODAY. A COLD
FRONT WILL DROP ACROSS THE REGION TONIGHT...BRINGING A ROUND OF SNOW
SHOWERS...THEN HIGH PRESSURE BUILDS ACROSS THE REGION LATE
THURSDAY.
&&
.NEAR TERM /THROUGH TONIGHT/...
THE LATEST RADAR MOSAICS CONTINUE TO SHOW WEAK...MULTIPLE SNOW BANDS
FORMING EAST OF LAKE ERIE...WHILE THE BANDS OFF LAKE ONTARIO ARE
LIFTING SLOWLY TO THE NORTH AND ARE SHOWING SIGNS OF CONSOLIDATING
OVER NORTHERN CAYUGA AND SOUTHERN OSWEGO COUNTIES.
THE WEAKER BANDS OFF LAKE ERIE ARE EXPECTED TO REMAIN IN PLACE
ACROSS THE SOUTHERN TIER FOR THE REST OF THE DAY AS AMPLE MOISTURE
REMAINS TRAPPED BELOW THE SUBSIDENCE INVERSION WITH ADEQUATE SNOW
CRYSTAL GROWTH WITHIN THE CLOUD BEARING LAYER. BASED ON THESE
TRENDS...WILL JUST INDICATE ANOTHER 1 TO 2 INCHES ACROSS THE
SOUTHERN TIER.
FOR LAKE ONTARIO...THE SITUATION IS A LITTLE MORE COMPLICATED. THE
MULTIPLE SNOW BANDS ARE FORECAST TO SHIFT FARTHER TO THE NORTH LATER
THIS MORNING AND DURING THE AFTERNOON AS THE BOUNDARY LAYER WINDS
BACK A LITTLE MORE IN ADVANCE OF A SECONDARY SURFACE TROUGH/ARCTIC
FRONT THAT IS FORECAST TO DROP SOUTH ACROSS THE LAKE LATE THIS
AFTERNOON. THE NAM12 925 WIND AND OMEGA FIELDS DEPICT THIS NORTHWARD
DRIFT VERY WELL...ESPECIALLY BETWEEN 15Z AND 18Z. IF THIS TREND
VERIFIES...THE LONGER FETCH ACROSS THE LAKE WILL COME INTO PLAY AND
IMPACT OSWEGO AND SOUTHERN LEWIS COUNTIES WITH STEADIER LAKE SNOWS.
FOR NOW...WILL MAINTAIN THE LAKE EFFECT SNOW ADVISORY THAT IS IN
PLACE ACROSS THESE TWO COUNTIES...BUT ACCUMULATIONS COULD BE HIGHER
IF THE BAND REMAINS INTACT OVER THIS AREA LONGER THAN EXPECTED...OR
AN UPSTREAM CONNECTION TO LAKE HURON IS ESTABLISHED...AS SUGGESTED
BY THE NAM12.
AS THE AFOREMENTIONED FRONT REACHES THE SOUTH SHORE OF LAKE ONTARIO
DURING THE EARLY EVENING...EXPECT THE SNOW BAND TO SHIFT SOUTH AND
IMPACT ALL THE COUNTIES BORDERING THE SOUTH OF THE LAKE WITH A QUICK
1 TO 2 INCHES OF SNOW. SLIGHTLY HIGHER ACCUMULATIONS ARE POSSIBLE
FROM MONROE TO NORTHERN CAYUGA COUNTIES AS THE WINDS SHIFT TO THE
WEST NORTHWEST BEHIND THE FRONT.
AFTER THE FRONT LOOSES ITS CONNECTION TO LAKE ONTARIO...EXPECT THE
SNOW TO WEAKEN A BIT AS THE FRONT CONTINUES TO DROP SOUTH ACROSS THE
REST OF THE STATE EARLY TONIGHT. STILL EXPECT MORE LAKE SNOWS TO SET
UP SOUTHEAST OF LAKE ONTARIO BEHIND THE FRONT...BUT THE SHORTER
FETCH AND LOWERING SUBSIDENCE INVERSION SHOULD HELP TO KEEP
ACCUMULATIONS BELOW ADVISORY CRITERIA.
THE REST OF THE AREA WILL SEE SOME SNOW WITH THE PASSING
TROUGH...BUT EXPECT LOWER ACCUMULATIONS COMPARED TO AREAS CLOSER TO
LAKE ONTARIO.
IN TERMS OF TEMPERATURES DURING THIS PERIOD...READINGS WILL RANGE
FROM THE LOWER TO MIDDLE 20S TODAY...THEN DIP INTO THE TEENS ACROSS
MOST LOCATIONS TONIGHT. THE MAIN EXCEPTION TONIGHT WILL BE EAST OF
LAKE ONTARIO WHERE TEMPERATURES ARE EXPECTED TO DIP INTO THE SINGLE
DIGITS ACCOMPANIED BY WIND CHILLS IN THE -10F TO -15F RANGE.
&&
.SHORT TERM /THURSDAY THROUGH FRIDAY NIGHT/...
ON THURSDAY...THE ARCTIC FRONTAL BOUNDARY WILL STALL ROUGHLY FROM
BUFFALO SOUTHEASTWARD TO NEW YORK CITY. BY THIS TIME...THE LOW IN
THE CANADIAN MARITIMES WILL BE WEAKENING...WITH THE FRONT REALLY
LOOSING ITS PUSH...LEAVING A SHALLOW LAYER OF VERY COLD AIR IN ITS
WAKE. MOST BUFKIT SOUNDINGS SHOW A SHARP INVERSION FROM 2000 TO 3000
FT. FOR LAKE EFFECT...THIS WILL LIMIT THE VERTICAL GROWTH...BUT WITH
-17C AIR AT 925 MB SOUTHEAST OF LAKE ONTARIO...IT WILL BE COLD
ENOUGH FOR SUFFICIENT SNOW GROWTH. THE SAME CANNOT BE SAID FOR LAKE
ERIE...WITH TEMPERATURES ONLY AROUND -10C BENEATH THE
INVERSION...RESULTING IN A MORE MARGINAL CASE. FOCUSING ON LAKE
ONTARIO...A THICK LAKE-INDUCED CAPE OF AROUND 400 J/KG IS
EVIDENT...IN A NW FLOW BEHIND THE FRONT. THE MAIN LIMITING FACTOR
WILL BE THE DRIER ARCTIC AIR WORKING IN AND WEAKENING WINDS. WILL GO WITH
LIKELY POPS...CENTERED ROUGHLY ON WAYNE COUNTY ON THURSDAY...WITH
DIMINISHING POPS LATE IN THE DAY. ANY SNOW THAT DOES DEVELOP SHOULD
HAVE A GOOD FLUFF FACTOR WITH 1 TO 3 INCHES A MIDDLE OF THE ROAD
FORECAST SOUTHEAST OF ONTARIO. EXPECT THE BAND TO STRUGGLE TO SPREAD
VERY FAR FROM THE LAKE GIVEN THE LOW INVERSION...WITH LIMITED
POTENTIAL FOR DEVELOPMENT OFF OF LAKE ERIE AS WELL. THE INVERSION
WILL LIKELY TRAP LINGERING LOW MOISTURE...WITH MORE CLOUDS THAN SUN
EXPECTED. WITH THE ARCTIC FRONT STRADDLING THE REGION...EXPECT HIGH
TEMPERATURES TO RANGE SIGNIFICANTLY FROM THE UPPER 20S IN THE
SOUTHERN TIER...TO THE TEENS EAST...AND EVEN THE SINGLE DIGITS
POSSIBLE IN THE COLDEST NORTH COUNTRY LOCATIONS.
FOR THURSDAY NIGHT AND FRIDAY...SURFACE HIGH PRESSURE WILL BUILD
ACROSS THE REGION...WITH THE AXIS GRADUALLY DRIFTING TO THE EAST
FRIDAY NIGHT. WHILE HIGH PRESSURE TYPICALLY BRINGS FAIR WEATHER TO
THE REGION...THERE IS ONE ISSUE TO CONTEND WITH. THE
NAM/EUROPEAN/UKMET/GEM ALL PRODUCE LIGHT QPF IN WESTERN PORTIONS OF
THE STATE. A CLOSER LOOK SHOWS AN AREA OF WEAK WARM AIR ADVECTION
ALONG THE EXITING FRONTAL BOUNDARY. WHILE DYNAMICS ARE NOT TO
IMPRESSIVE...THE MODEL CONSENSUS...AND THE FACT THAT ONLY LIGHT QPFS
CAN PRODUCE SNOW FALL IN THIS VERY COLD ENVIRONMENT...WILL ADD
CHANCE POPS IN WESTERN SECTIONS. TEMPERATURES WILL AGAIN
RANGE...COLDEST TO THE EAST. BASICALLY USE A BIAS CORRECTED BLEND
WEIGHTING THE SREF AND TWEAKING DOWN WHERE ARCTIC AIR IS EXPECTED TO
BE BEST ENTRENCHED. SKY CONDITIONS WILL VARY...BUT GENERALLY MORE
OPTIMISTIC EAST...WHERE THE THE HIGH WILL BE MORE FIRMLY IN CONTROL.
THE STALLED FRONTAL BOUNDARY BECOMES MORE EAST-WEST ORIENTED ON THE
SOUTHERN FRINGE OF THE CWA FRIDAY NIGHT. WILL CONTINUE MINIMAL
CHANCE POPS...AS MODEL CONSENSUS CONTINUES TO SUGGEST SOME LIGHT
SNOW SHOWER ACTIVITY ASSOCIATED WITH THE BOUNDARY.
&&
.LONG TERM /SATURDAY THROUGH TUESDAY/...
FOR THIS UPCOMING WEEKEND...WILL INTRODUCE CHANCE POPS FOR
SATURDAY...MAINTAINING CONTINUITY AS THE STALLED FRONTAL BOUNDARY AND
UPPER TROF MAY BE ENOUGH TO PRODUCE SNOW SHOWER ACTIVITY FOR SOME.
BEYOND THIS...THERE REALLY ISN/T MUCH TO HANG YOUR HAT ON OTHER THAN
AN PERSISTENT UPPER TROF IN EASTERN CANADA. BASICALLY MAINTAIN GOING
FORECAST WHICH HAS POPS IN THE CHANCE TO SLIGHT CHANCE RANGE THROUGH
THE PERIOD.
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 /12Z WEDNESDAY THROUGH SUNDAY/...
COLDER AIR DEEPENING ACROSS NEW YORK STATE IS GENERATING LAKE SNOWS
SOUTHEAST OF THE LAKES EARLY THIS MORNING. EXPECT RELATIVELY
WEAK...MULTIPLE SNOW BANDS TO REMAIN INTACT ACROSS THE SOUTHERN TIER
THROUGHOUT THE DAY. VFR CIGS EARLY THIS MORNING WILL LOWER TO MVFR
AS LIMITED DAYTIME HEATING LIFTS THE MOIST AIR THAT IS ALREADY IN
PLACE.
THE MULTIPLE BANDS OFF LAKE ONTARIO WILL LIFT SLOWLY TO THE NORTH
AND CONSOLIDATE INTO A SINGLE...BETTER ORGANIZED BAND THAT IS
EXPECTED TO FOCUS MAINLY OVER OSWEGO AND SOUTHERN LEWIS COUNTIES
THROUGH THE AFTERNOON. IFR TO LIFR CONDITIONS WILL BE COMMON WITHIN
THE HEART OF THIS SNOW BAND. OTHERWISE...EXPECT MVFR CONDITIONS IN
LIGHTER SNOW SHOWERS NORTH AND SOUTH OF THE MAIN SNOW BAND.
TOWARD EVENING...A SECONDARY COLD FRONT WILL DROP SOUTH OF LAKE
ONTARIO AND GENERATE A BURST OF SNOW WITH MVFR TO IFR...ESPECIALLY
ALONG THE SOUTH SHORE OF THE LAKE. THE SNOW WILL DIMINISH A BIT AS
THE FRONT CONTINUES TO PUSH SOUTH ACROSS THE AREA...BUT MVFR
CONDITIONS WILL PREVAIL AT MOST TAF SITES THROUGH THE NIGHT AS
ABUNDANT LOW LEVEL MOISTURE REMAINS TRAPPED BELOW A LOWERING
INVERSION.
OUTLOOK...
THURSDAY...VFR/MVFR IN SNOW SHOWERS...ESP ESE OF LAKES WHERE SOME
IFR IS POSSIBLE IN LAKE SNOWS.
FRIDAY AND SATURDAY...MAINLY VFR.
SUNDAY...MAINLY VFR.
&&
.MARINE...
SCA MAINTAINED ON THE WATERS...WITH THE STRONGEST FLOW ON LAKE
ONTARIO TODAY...WITH WINDS APPROACHING 30 KTS. EXPECT A BRIEF
INCREASE AND SHIFT TO THE NORTHWEST IMMEDIATELY BEHIND THE
PASSAGE AN ARCTIC BOUNDARY ON LAKE ONTARIO THIS EVENING. AFTER
THIS...WINDS SHOULD DIMINISH...WITH THE A GENERALLY QUIET PERIOD
EXPECTED ON THE LAKES THROUGH THE WEEKEND.
&&
.BUF WATCHES/WARNINGS/ADVISORIES...
NY...LAKE EFFECT SNOW ADVISORY UNTIL 6 PM EST THIS EVENING 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...APFFEL
NEAR TERM...TJP
SHORT TERM...APFFEL
LONG TERM...APFFEL/SAGE
AVIATION...TJP
MARINE...APFFELHazardous weather outlook, Dec 16, 4:53 AM EST, 4 hours 53 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE BUFFALO NY 453 AM EST WED DEC 16 2009 NYZ001>003-010>014-019>021-085-171000- NIAGARA-ORLEANS-MONROE-NORTHERN ERIE-GENESEE-WYOMING-LIVINGSTON- ONTARIO-CHAUTAUQUA-CATTARAUGUS-ALLEGANY-SOUTHERN ERIE- 453 AM EST WED DEC 16 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...THURSDAY THROUGH TUESDAY. 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 NYZ004-005-171000- WAYNE-NORTHERN CAYUGA- 453 AM EST WED DEC 16 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF WESTERN AND NORTH CENTRAL NEW YORK. .DAY ONE...TODAY AND TONIGHT. THERE IS A CHANCE LAKE EFFECT SNOWFALL TOTALS MAY APPROACH MINIMAL ADVISORY CRITERIA IN SOME LOCATIONS TODAY. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY. 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 NYZ006-171000- OSWEGO- 453 AM EST WED DEC 16 2009 ...LAKE EFFECT SNOW ADVISORY IN EFFECT UNTIL 6 PM EST THIS EVENING... THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL NEW YORK. .DAY ONE...TODAY AND TONIGHT. PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS. LAKE EFFECT SNOW ADVISORY. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY. 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 NYZ007-171000- JEFFERSON- 453 AM EST WED DEC 16 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL NEW YORK. .DAY ONE...TODAY AND TONIGHT. THERE IS A CHANCE LAKE EFFECT SNOWFALL TOTALS MAY APPROACH MINIMAL ADVISORY CRITERIA IN SOME LOCATIONS TODAY. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY. 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 NYZ008-171000- LEWIS- 453 AM EST WED DEC 16 2009 ...LAKE EFFECT SNOW ADVISORY IN EFFECT UNTIL 6 PM EST THIS EVENING... THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL NEW YORK. .DAY ONE...TODAY AND TONIGHT. PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS. LAKE EFFECT SNOW ADVISORY. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY. BITTERLY COLD TEMPERATURES ARE EXPECTED THURSDAY MORNING...DROPPING WIND CHILLS WELL BELOW ZERO. CONDITIONS MAY APPROACH WIND CHILL ADVISORY CRITERIA. .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-SLZ022-024-171000- 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- 453 AM EST WED DEC 16 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...THURSDAY THROUGH TUESDAY. 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
In the hours before
Special weather statement, Dec 16, 8:11 AM EST, 1 hour 35 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BUFFALO NY 811 AM EST WED DEC 16 2009 NYZ006>008-161430- OSWEGO-JEFFERSON-LEWIS- INCLUDING THE CITIES OF...OSWEGO...WATERTOWN...LOWVILLE 811 AM EST WED DEC 16 2009 ...HEAVY LAKE SNOW TO CONTINUE FOR PORTIONS OF THE REGION... AT 8 AM, A LARGE AREA OF LAKE EFFECT SNOW STRETCHED FROM SOUTH BEACH TO LORRAINE, TO HIGHMARKET ON THE NORTHERN EDGE, AND FROM FAIR HAVEN TO FULTON, TO CONSTANTIA ON THE SOUTHERN EDGE, ENCOMPASSING ALL OF OSWEGO COUNTY, AND THE SOUTHERN SECTIONS OF JEFFERSON AND LEWIS COUNTIES, ALONG WITH THE TUG HILL REGION. SOME OF THE CITIES IMPACTED INCLUDE, FULTON, ALTMAR, OSCEOLA, MANNSVILLE AND PULASKI, ALONG WITH PORTIONS OF ROUTE 81. SNOWFALL RATES OF 1 TO 2 INCHES PER HOUR CAN BE EXPECTED IN SOME AREAS, ALONG WITH VISIBILITY REDUCED AT TIMES TO 1/4 OF A MILE OR LESS. A RUMBLE OF THUNDER CANNOT BE RULED OUT FOR SOME LOCATIONS. ROADS WILL BE SNOW COVERED AND DRIVING IN THIS BAND WILL BE DIFFICULT AT BEST, SO USE EXTREME CAUTION IF YOU MUST TRAVEL THROUGH THIS ACTIVITY. THE AREA IS FORECAST TO REMAIN NEARLY STATIONARY THROUGH 9 AM.
Special weather statement, Dec 16, 9:38 AM EST, 8 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BUFFALO NY 938 AM EST WED DEC 16 2009 NYZ006>008-161600- OSWEGO-JEFFERSON-LEWIS- INCLUDING THE CITIES OF...OSWEGO...WATERTOWN...LOWVILLE 938 AM EST WED DEC 16 2009 ...HEAVY LAKE SNOWS TO CONTINUE FOR PORTIONS OF THE REGION... AT 930 AM, A LARGE AREA OF LAKE EFFECT SNOW STRETCHED FROM ADAMS TO WORTH, TO MARTINSBURG ON THE NORTHERN EDGE, AND FROM FAIR HAVEN TO CENTRAL SQUARE, TO CONSTANTIA ON THE SOUTHERN EDGE, ENCOMPASSING ALL OF OSWEGO COUNTY, AND THE SOUTHERN SECTIONS OF JEFFERSON AND LEWIS COUNTIES, ALONG WITH THE TUG HILL REGION. SOME OF THE CITIES IMPACTED INCLUDE, FULTON, REDFIELD, ALTMAR, OSCEOLA, MANNSVILLE, PULASKI AND HIGHMARKET, ALONG WITH PORTIONS OF ROUTE 81. SNOWFALL RATES OF 1 TO 2 INCHES PER HOUR CAN BE EXPECTED IN SOME AREAS, ALONG WITH VISIBILITY REDUCED AT TIMES TO 1/4 OF A MILE OR LESS. A RUMBLE OF THUNDER CANNOT BE RULED OUT FOR SOME LOCATIONS. ROADS WILL BE SNOW COVERED AND DRIVING IN THIS BAND WILL BE DIFFICULT AT BEST, SO USE EXTREME CAUTION IF YOU MUST TRAVEL THROUGH THIS ACTIVITY. THE AREA IS FORECAST TO REMAIN NEARLY STATIONARY THROUGH 11 AM.
Nearby
Lake Effect Snow Warnings in New York, 2009Every lake effect snow warning in 2009
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.