Deep low pressure strengthened as it moved from near Chicago to Quebec. The strong southerly winds ahead of the system downed trees and power lines across the higher elevations of the western southern Tier of New York during the pre-dawn hours.
Every event with a place to put it; 8 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS BUF wrote it up.
Deep low pressure strengthened as it moved from near Chicago to Quebec. The strong southerly winds ahead of the system downed trees and power lines across the higher elevations of the western southern Tier of New York during the pre-dawn hours. On the New York State Thruway, several tractor trailers were blown over as winds gusted to near 70 mph. As the system passed to the north, winds shifted to southwest and increased. Gusts were measured to 60 mph at the Buffalo International Airport. The winds downed trees and power lines and utilities reported tens of thousands without power.
The local office's own words before the first event, 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 the first event at Dec 9, 4:19 AM EST, 11 minutes earlier.
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BUFFALO NY
419 AM EST WED DEC 9 2009
.SYNOPSIS...
AN INTENSE AREA OF LOW PRESSURE NEAR CHICAGO THIS MORNING WILL LIFT
ACROSS MICHIGAN TO LAKE HURON BY THIS EVENING. THE UNUSUALLY STRONG
STORM SYSTEM WILL THEN CROSS SOUTHERN ONTARIO TO QUEBEC BY THURSDAY
MORNING. THIS WILL RESULT IN THE DEVELOPMENT OF HIGH WINDS ACROSS
THE REGION WITH WIND DRIVEN LAKE EFFECT SNOWS DEVELOPING TONIGHT AND
CONTINUING INTO AT LEAST FRIDAY. VERY HEAVY LAKE EFFECT SNOWS WILL
BE FOUND IN THE TRADITIONAL SNOWBELT AREAS EAST OF BOTH LAKES ERIE
AND ONTARIO.
&&
.NEAR TERM /THROUGH TONIGHT/...
983MB LOW PRESSURE SITUATED NEAR CHICAGO AT 09Z WILL CONTINUE TO
DEEPEN AS IT LIFTS NORTHEAST TO GEORGIAN BAY TODAY...THEN WILL
SLOWLY BEGIN TO FILL AS IT TRACKS INTO WESTERN QUEBEC TONIGHT. A
WARM FRONT EXTENDING EASTWARD FROM THE LOW WILL WORK ACROSS WESTERN
AND CENTRAL NEW YORK STATE THIS MORNING...THEN WILL BE FOLLOWED THIS
AFTERNOON BY A RATHER SHARP COLD FRONTAL PASSAGE.
THE APPROACH AND PASSAGE OF THIS INTENSE EARLY WINTER STORM WILL
RESULT IN A MYRIAD OF WEATHER CONCERNS FOR OUR AREA DURING THE NEAR
TERM PERIOD. THESE ARE AS FOLLOWS:
1. PRECIPITATION TODAY...AS OF 09Z WIDESPREAD WARM ADVECTIVE PRECIP
HAS OVERSPREAD ALL OF THE FORECAST AREA. THIS WILL CONTINUE INTO MID
MORNING BEFORE TAPERING OFF FROM SOUTHWEST TO NORTHEAST IN
CONJUNCTION WITH THE MAIN SWATH OF LOWER AND UPPER LEVEL JET
SUPPORT...AND AS DRY SLOTTING WORKS INTO THE AREA FROM THE OHIO
VALLEY. METAR AND MESONET OBS INDICATE THAT THE MAJORITY OF THIS IS
STILL FALLING IN THE FORM OF SNOW...WITH SOME RAIN/SLEET/FREEZING
RAIN MIXING IN AT TIMES CLOSER TO LAKE ERIE. EXPECT THIS GENERAL
SPREAD IN PRECIP TYPES TO PRETTY CONTINUE FOR ANOTHER HOUR OR
TWO...BEFORE CONTINUING WARM ADVECTION BOTH AT THE SURFACE AND ALOFT
HELPS TO FORCE A TRANSITION TO ALL RAIN BY MIDDAY PRETTY MUCH
EVERYWHERE. THIS CHANGEOVER WILL OCCUR EARLIEST ALONG THE LAKE ERIE
SHORE WHERE DOWNSLOPE COMPRESSIONAL WARMING WILL AID THE LOW-LEVEL
TEMPERATURE RISE...AND LAST ACROSS THE TYPICALLY MORE SHELTERED
INTERIOR VALLEYS OF THE SOUTHERN TIER AND NORTH COUNTRY. GIVEN THAT
THE BULK OF THE PRECIP IS STILL OF THE FROZEN/FREEZING
VARIETY...WILL LEAVE THE CURRENT WINTER WEATHER ADVISORY IN EFFECT
AS IS FOR NOW...BUT WILL REVISIT THIS LATER THIS MORNING AS THE
SITUATION EVOLVES.
WITH THE ARRIVAL OF THE WARM SECTOR/DRY SLOT...WE STILL
EXPECT THE PRECIPITATION TO TAPER OFF TO JUST SOME SCATTERED SHOWERS
FOR A WHILE LATER THIS MORNING AND EARLY THIS AFTERNOON...BEFORE THE
AFOREMENTIONED COLD FRONT APPROACHES ALONG WITH AN INCREASING SHOWER
THREAT DURING THE MID TO LATE AFTERNOON.
2. WINDS...THE PASSAGE OF SUCH AN INTENSE LOW TO OUR NORTH AND WEST
IS CLIMATOLOGICALLY FAVORABLE FOR STRONG WINDS ACROSS WESTERN AND
NORTH CENTRAL NEW YORK...AND THIS EVENT WILL BE NO EXCEPTION WITH
TWO PERIODS OF STRONGER WINDS ANTICIPATED. THE FIRST OF THESE WILL
OCCUR FROM NOW THROUGH EARLY AFTERNOON AND WILL BE ASSOCIATED WITH
THE PASSAGE OF THE MAIN LOW LEVEL JET...WITH A STRONG SOUTH TO
SOUTHEASTERLY LOW-LEVEL FLOW PRODUCING SOME ADVISORY-LEVEL GUSTS
ACROSS THE HIGHER TERRAIN SOUTH OF BUFFALO AND IN THE BLACK RIVER
VALLEY EAST OF LAKE ONTARIO. THE SECOND OF THESE...THE MAIN WIND
EVENT...WILL BEGIN WITH THE PASSAGE OF THE SURFACE COLD FRONT LATER
THIS AFTERNOON AND EARLY THIS EVENING...WITH WINDS TURNING
SOUTHWESTERLY AND INCREASING SHARPLY IN THE COLD ADVECTION REGIME
BEHIND THE FRONT...WITH THE ASSOCIATED DOWNWARD MOMENTUM TRANSPORT
HELPING TO BRING SOME WARNING CRITERIA /50-55 KNOT/ GUSTS DOWN TO
THE SURFACE. HIGH WIND WARNINGS ARE CURRENTLY IN EFFECT TO COVER
BOTH OF THESE BOUTS OF STRONGER WINDS...AND THESE WILL BE LEFT AS IS
WITH THE EARLY MORNING FORECAST ISSUANCE.
3. LAKESHORE FLOODING...THE PROLONGED PERIOD OF STRONG SOUTHWESTERLY
WINDS EXPECTED LATE THIS AFTERNOON AND TONIGHT WILL LEAD TO A SEICHE
EVENT ON LAKE ERIE...WITH LAKE LEVELS VERY LIKELY TO REACH FLOOD
STAGE ALONG THE LAKE ERIE SHORELINE OF ERIE AND CHAUTAUQUA COUNTIES.
FOR THIS REASON...THE EXISTING LAKE SHORE FLOOD WATCH FOR THESE TWO
COUNTIES HAS BEEN UPGRADED TO A WARNING.
4. DEVELOPING LAKE EFFECT TONIGHT...AS IF ALL OF THE ABOVE WASNT
ENOUGH...MUCH COLDER AIR WILL CHARGE INTO THE REGION TONIGHT BEHIND
THE COLD FROPA...WITH 850 MB READINGS FALLING TO -6C IN THE WEST AS
EARLY AS THIS EVENING...AND TO THE -10C TO -12C RANGE EVERYWHERE BY
THURSDAY MORNING. WITH LAKE TEMPS STILL IN THE +7 TO +8C
RANGE...THIS WILL EASILY SET OFF A STRONG LAKE RESPONSE...WITH LAKE
EFFECT SNOWS SETTING UP OFF OF BOTH LAKES ON A SOUTHWEST TO
WEST-SOUTHWEST FLOW. OFF LAKE ERIE...THE LAKE SNOWS WILL BEGIN TO
SET UP AS EARLY AS THIS EVENING IN THE BUFFALO AREA ON A SOMEWHAT
SHEARED SOUTHWESTERLY FLOW...THEN SLOWLY MIGRATE SOUTHWARD TO THE
IMMEDIATE BUFFALO SOUTHTOWNS AND BECOME BETTER ORGANIZED LATER
TONIGHT AS THE FLOW VEERS A BIT MORE TO WSW AND BECOMES BETTER
ALIGNED. OFF LAKE ONTARIO...THIS SAME SCENARIO WILL UNFOLD ABOUT 3-4
HOURS LATER...WITH LAKE SNOWS OVERSPREADING THE WATERTOWN AREA AND
NORTHERN JEFFERSON/LEWIS COUNTIES BY LATE TONIGHT.
WHILE SNOWFALL ACCUMULATIONS WILL BE HELD IN CHECK BY THE
AFOREMENTIONED SHEAR AND STRONG WINDS...WHICH WILL HELP TO LIMIT THE
ORGANIZATION OF THE LAKE SNOWS...THE COMBINATION OF THE STRONG WINDS
AND FALLING SNOW WILL STILL RESULT IN VERY DIFFICULT TRAVEL
CONDITIONS DEVELOPING DURING THE COURSE OF TONIGHT...WITH VERY POOR
VISIBILITIES EXPECTED IN EXTENSIVE BLOWING AND DRIFTING SNOW. FOR
THIS REASON AND THE FACT THAT WINTER WEATHER ADVISORIES REMAIN IN
EFFECT FOR THIS MORNING...WINTER STORM WATCHES HAVE BEEN LEFT IN
PLACE ACROSS THE EXPECTED LAKE EFFECT AREAS FOR TONIGHT.
&&
.SHORT TERM /THURSDAY THROUGH SATURDAY NIGHT/...
THE ANOMALOUSLY DEEP STORM SYSTEM THAT WILL BOTTOM OUT AT HURRICANE
STRENGTH (<980 MB) WILL START TO FILL DURING THE DAY THURSDAY AS IT
WILL LIFT ACROSS SOUTHERN QUEBEC. IN THE WAKE OF THE STRONG STORM...
A VERY TIGHT SFC PRESSURE GRADIENT WILL KEEP STRONG WINDS ACROSS ALL
OF WESTERN NEW YORK. WHILE A HIGH WIND WARNING WILL REMAIN IN EFFECT
ON THURSDAY...WINDS WILL PROBABLY BE OF ADVISORY STRENGTH FOR THE
VAST MAJORITY OF THE TIME. WORKING AGAINST A CLASSIC WIND EVENT WILL
BE TWO FACTORS...(1) THE SFC LOW WILL BE FILLING AS IT EXITS ACROSS
QUEBEC AND (2) THERE WILL BE A LACK OF STRONG WINDS (<50 KTS) TO MIX
DOWN TO THE SFC FROM ALOFT.
OF MORE CONCERN ON THURSDAY WILL BE THE WIND WHIPPED LAKE SNOWS
THAT WILL BE FOCUSED ON THE LAKE ERIE SNOWBELT SOUTH OF BUFFALO AND
ALSO ACROSS THE TUG HILL. LETS START WITH LAKE ERIE.
THE LOWER BOUNDARY LAYER (BLO 700MB/10K FT) FLOW ON THURSDAY WILL
AVERAGE 260 DEG OFF LK ERIE...SO THIS WILL MEAN THAT THE BULK OF THE
LK SNOW WILL BE AIMED AT THE SOUTH TOWNS (ORCHARD PK/HAMBURG). THE
LAKE SNOW BAND WILL LIKELY START THE DAY IN...OR JUST SOUTH...OF THE
BUF METRO AREA THEN WILL SETTLE A LITTLE TO THE SOUTH. WORKING
AGAINST HIGH SNOWFALL RATES (>1 PER HOUR) WILL BE THE STRONG
WINDS...BUT ON THE OTHER HAND...30-50 MPH WINDS WILL PRODUCE NEAR
BLIZZARD CONDITIONS WITHIN THE LAKE SNOW. SNOWFALL RATES THAT WOULD
OTHERWISE BE IN THE 1-3/HR RANGE WILL PROBABLY HOLD CLOSE TO THE
LOW END OF THE RANGE WITH A MORE DIFFUSE CONCENTRATION OF THE PLUME
ITSELF. REGARDLESS...SNOW ACCUMS THURSDAY SHOULD REACH 6 TO 10
INCHES. THE MAIN IMPACT THOUGH WILL BE FROM THE 20:1 SNOW BEING
BLOWN BY THE 30 TO 50 MPH WINDS...PRODUCING WHITE OUT CONDITIONS.
THIS WILL LEAD TO VERY DIFFICULT/CHALLENGING TRAVEL CONDITIONS...
BOTH BY LAND AND AIR...FOR MUCH OF THE BUF METRO AREA THURSDAY
MORNING.
OFF LK ONTARIO...A 250 FLOW SHOULD SET UP A RATHER WIDE AND DIFFUSE
LAKE SNOW BAND NEAR OR JUST NORTH OF WATERTOWN. THE MOISTURE PROFILE
WILL BE DEEPER THAN THAT OF LK ERIE...INCLUDING A 4-5K FT THICK
DENDRITIC GROWTH ZONE. AGAIN...THE STRONG WINDS SHOULD KEEP THE LAKE
BAND FROM BECOMING CONCENTRATED BUT WILL ALSO PRODUCE WHITE OUT
BLIZZARD CONDITIONS. THE BAND SHOULD GENERALLY REMAIN NORTH OF THE
TUG HILL THROUGH THE DAY...WITH SNOWFALL AMOUNTS OF 5 TO 8 INCHES.
MORE TYPICAL LAKE PLUMES WILL SET UP THURSDAY NIGHT AS THE GRADIENT
WILL DECREASE A BIT AND WINDS WILL VEER TO ABOUT 270 WITH H85
DROPPING TO -20C AND A RISING EQUILIBRIUM LEVEL OVER BOTH LAKES.
THE LAKE SNOWS OFF LK ERIE WILL SETTLE ACROSS SKI COUNTRY DURING THE
COURSE OF THURSDAY NIGHT WITH SNOWFALL RATES OF 1-2/HR PRODUCING
NIGHTTIME ACCUMS OF A FOOT OR MORE OF LIGHT FLUFFY 30:1 SNOW. THE
LAKE SNOWS SHOULD BE EVEN MORE IMPRESSIVE OFF LK ONTARIO AS A
MULTI-LAKE ENHANCED BAND OF SNOW WILL ABSOLUTELY BURY THE TUG HILL
PLATEAU WITH ACCUMS EASILY EXCEEDING A FOOT. ALL OF THIS LOW DENSITY
SNOW WILL CONTINUE TO BE BLOWN AND ALSO DRIFTED AT THIS POINT...WITH
TRAVEL NEARLY IMPOSSIBLE. THIS WILL INCLUDE INTERSTATE 81 SOUTH OF
WATERTOWN AND POSSIBLY THE NEW YORK STATE THRUWAY BETWEEN ERIE AND
HAMBURG.
ITS WORTH NOTING THAT LOW TEMPS IN THE TEENS AND LOW 20S THURSDAY
NIGHT WILL COMBINE WITH GUSTY WINDS TO PRODUCE OUR LOWEST WIND CHILL
VALUES OF THE YOUNG SEASON...WITH VALUES WITHIN A FEW DEGREES OF
ZERO.
FOR FRIDAY...THE BITTER COLD -16 TO -20C WILL REMAIN OVER THE REGION
WITH A 270 FLOW PERSISTING OFF BOTH LAKES. MEMORABLE LAKE SNOWS WILL
CONTINUE EAST OF BOTH LAKES. SKI COUNTRY OF SRN ERIE COUNTY AND
THE WRN SOUTHERN TIER SHOULD PICK UP AT LEAST 6 MORE INCHES OF
ACCUMULATION WHILE THE TUG HILL PLATEAU COULD BE IN LINE FOR ANOTHER
FOOT. THE REST OF THE REGION CAN EXPECT SCATTERED LAKE SNOW SHOWERS
WITH SFC TEMPS ONLY REACHING THE MID 20S AND WIND CHILLS IN THE
SINGLE DIGITS.
SFC BASED HIGH PRESSURE OVER THE OHIO VALLEY FRIDAY EVENING WILL
BUILD NORTHWARDS DURING THE COURSE OF FRIDAY NIGHT AS THE REMNANTS
OF THE ARCTIC H5 TROUGH WILL FINALLY LIFT OUT ACROSS EASTERN CANADA.
THE STEERING WINDS WILL VEER A LITTLE MORE TO THE NORTHWEST...AND
THIS WILL SEND THE WEAKENING SNOW BANDS FURTHER SOUTH.
ON SATURDAY...LOW LEVEL RIDGING WILL BE IN PLACE OVER OUR REGION
WHILE A ZONAL FLOW WILL BE FOUND ALOFT. WEAK WARM ADVECTION WITHIN
THIS PATTERN WILL ELEVATE H85 TEMPS TO BETWEEN -10/-12C...BUT THIS
WILL STILL BE COLD ENOUGH FOR RESIDUAL LAKE SNOW SHOWERS. A LOWERING
CAP AND HIGH SHEAR WILL PROBABLY END THE LAKE SNOWS OFF LK ERIE...
BUT A BAND OF LK SNOW (PRIMED FROM LK SUPERIOR) WILL STILL EXTEND
ACROSS OSWEGO COUNTY WITH ADDITIONAL MINOR ACCUMS.
EXPECT ANOTHER COLD NIGHT SATURDAY NIGHT AS WINDS WILL BE LIGHT. A
FRESH SNOWPACK...ESPECIALLY DOWNWIND OF THE LAKES...WILL GUARANTEE
BELOW NORMAL TEMPERATURES FOR ANOTHER NIGHT.
&&
.LONG TERM /SUNDAY THROUGH TUESDAY/...
THE COLD PATTERN LOOKS TO EASE FOR A COUPLE OF DAYS DURING THIS
PERIOD WITH REGION SANDWICHED BETWEEN THE TWO JET STREAMS ON SUNDAY
AND MONDAY. WEAK RIDGING SHOULD SLIDE JUST TO OUR EAST OF
SUNDAY...ALLOWING FOR DRY AND TRANQUIL DAY UNDER A LIGHT SOUTHERLY
FLOW. 850 MB TEMPS OF -2C TO -4C SHOULD TRANSLATE INTO M-U 30S TO
NEAR 40 WITH A BIT OF SUNSHINE. WITH BOTH EC AND GFS KEEPING
MOISTURE WELL TO OUR SOUTH...LOWERED POPS BELOW SLGT CHC.
MODELS DIVERGE ON MON-TUES...WITH ECMWF SWINGING COLD FRONT ACROSS
THE AREA MONDAY WHILE GFS HOLDS IT OFF TILL LATER TUES. WILL SPLIT
THE DIFFERENCE AND TAKE IT ACROSS THE EASTERN LAKES MON NT OR TUES
AM. THIS WOULD ALLOW FOR ANOTHER DECENT DAY ON MONDAY...MAINLY DRY
AND MILD...WILL BRING CHC POPS BACK IN ON MON NT AND DROP TO SLGT
CHC TUES ON COLDER NNW FLOW...CHC SE OF LAKES.
BOTH MODELS DO AGREE THAT THERE WILL BE A VERY COLD AIRMASS BEHIND
THIS FRONT OVER THE UPPER LAKES BY MIDWEEK WITH 850 MB TEMPS OF -25C
OR LOWER. SOME OF THIS MAY BE DRAWN DOWN INTO OUR REGION BY LATER
NEXT WEEK...SO LOOK FOR BELOW NORMAL TEMPS.
&&
.AVIATION /09Z WEDNESDAY THROUGH SUNDAY/...
LOW PRESSURE NEAR CHICAGO WILL MOVE ACROSS MICHIGAN TO GEORGIAN BAY
BY LATE THIS AFTERNOON. MOISTURE AHEAD OF THIS LOW WILL CONTINUE TO
SURGE ACROSS OUR REGION EARLY THIS MORNING...WITH SNOW EVENTUALLY
MIXING WITH AND CHANGING TO RAIN AS WARMER AIR WORKS IN ALOFT AND AT
THE SURFACE. AS THE 60 TO 70 KNOT LOW LEVEL JET TRACKS EAST ACROSS
THE AREA THIS MORNING...WIND GUSTS AT THE SURFACE WILL
INCREASE...BUT THE STRONGEST WINDS ALOFT ARE NOT EXPECTED TO EXTEND
DOWN TO THE LOWER 2K FEET DUE TO THE CAP ASSOCIATED WITH A
STRENGTHENING LOW LEVEL INVERSION. BASED ON THIS...LLWS HAS NOT BEEN
INCLUDED IN MOST OF THE TAFS.
THE RAIN WILL EVENTUALLY TAPER OFF DURING THE MIDDAY AND AFTERNOON
HOURS WITH CONDITIONS IMPROVING TO VFR OVER MOST SPOTS FOR A FEW
HOURS...BUT A POWERFUL COLD FRONT TRAILING THE LOW WILL REACH THE
LAKE ERIE SHORE AND NIAGARA FRONTIER AROUND 22Z WITH VERY STRONG SW
WINDS. SNOW SQUALLS WILL INCREASE OFF LAKE ERIE DURING WEDNESDAY
EVENING....AFFECTING THE KBUF, KIAG AND KROC TERMINALS. WINDS WILL
GUST OVER 40 KTS FOLLOWING THE FROPA.
OUTLOOK...
TONIGHT...CIGS LOWERING TO MVFR/IFR IN SNOW. STRONG SURFACE
WINDS.
THURSDAY...MAINLY MVFR/IFR SNOW SHOWERS AND SQUALLS...MAINLY
SOUTH OF KBUF AND KROC. STRONG SURFACE WINDS.
FRIDAY...VFR/MVFR IN SNOW SHOWERS.
SATURDAY...VFR/MVFR IN SNOW SHOWERS.
SUNDAY...MAINLY VFR.
&&
.MARINE...
A VERY DEEP STORM SYSTEM OF HURRICANE STRENGTH WILL MOVE FROM NEAR
CHICAGO THIS MORNING TO LAKE HURON THIS EVENING...THEN WILL CROSS
SOUTHERN ONTARIO TO WESTERN QUEBEC BY DAYBREAK THURSDAY. WINDS WILL
INCREASE TO GALE FORCE ON LAKE ERIE BY LATE TODAY...BEFORE BUILDING
TO STORM FORCE TONIGHT. HIGH GALE TO MINIMUM STORM FORCE WINDS WILL
THEN PERSIST ACROSS LAKE ERIE ON THURSDAY.
FOR LAKE ONTARIO...WINDS WILL INCREASE TO GALE FORCE TONIGHT WITH
OCCASIONAL STORM FORCE WIND GUSTS LATE TONIGHT INTO THURSDAY
MORNING.
AS THE DEEP LOW LIFTS AWAY ACROSS QUEBEC THURSDAY NIGHT AND
FRIDAY...WINDS WILL VERY SLOWLY SUBSIDE ACROSS BOTH LAKES.
WAVES ON BOTH LAKES WILL LIKELY BUILD TO BETWEEN 15 AND 20 FEET.
&&
.BUF WATCHES/WARNINGS/ADVISORIES...
NY...HIGH WIND WARNING UNTIL 7 PM EST THURSDAY FOR NYZ012-019>021-
085.
LAKESHORE FLOOD WARNING FROM 3 PM THIS AFTERNOON TO 7 AM EST
THURSDAY FOR NYZ010-019-085.
WINTER WEATHER ADVISORY UNTIL 8 AM EST THIS MORNING FOR
NYZ001>005-010>014-019>021-085.
WINTER STORM WATCH FROM THIS EVENING THROUGH FRIDAY EVENING
FOR NYZ012-019>021-085.
HIGH WIND WARNING FROM 9 AM THIS MORNING TO 7 PM EST THURSDAY
FOR NYZ007-008.
WINTER WEATHER ADVISORY UNTIL NOON EST TODAY FOR NYZ006>008.
WINTER STORM WATCH FROM LATE TONIGHT THROUGH FRIDAY EVENING
FOR NYZ006>008.
HIGH WIND WARNING FROM 5 PM THIS AFTERNOON TO 7 PM EST
THURSDAY FOR NYZ003>006-013-014.
HIGH WIND WARNING FROM 2 PM THIS AFTERNOON TO 7 PM EST
THURSDAY FOR NYZ001-002-010-011.
WINTER STORM WATCH FROM THIS EVENING THROUGH THURSDAY EVENING
FOR NYZ010-011.
MARINE...STORM WARNING FROM 2 PM THIS AFTERNOON TO 7 PM EST THURSDAY
FOR LEZ020-040-041.
GALE WARNING FROM 7 PM THIS EVENING TO 7 PM EST
THURSDAY FOR LOZ042>045-062>065.
GALE WARNING FROM 1 AM TO 7 PM EST THURSDAY FOR
SLZ022-024.
&&
SYNOPSIS...RSH
NEAR TERM...JJR
SHORT TERM...RSH
LONG TERM...SFM
AVIATION...JJR/SFM
MARINE...RSHHAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE BUFFALO NY 631 PM EST TUE DEC 8 2009 NYZ003>005-013-014-092345- MONROE-WAYNE-NORTHERN CAYUGA-LIVINGSTON-ONTARIO- 631 PM EST TUE DEC 8 2009 ...WINTER WEATHER ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM EST WEDNESDAY... ...HIGH WIND WARNING IN EFFECT FROM 5 PM WEDNESDAY TO 7 PM EST THURSDAY... THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF WESTERN AND NORTH CENTRAL NEW YORK. .DAY ONE...TONIGHT. PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS. WINTER WEATHER ADVISORY. DEEP LOW PRESSURE WILL MOVE OUT OF THE CENTRAL PLAINS TO NEAR CHICAGO WEDNESDAY MORNING...THEN IT WILL FURTHER STRENGTHEN WEDNESDAY AND WEDNESDAY NIGHT AS IT LIFTS ACROSS MICHIGAN AND THE CENTRAL GREAT LAKES TO WESTERN QUEBEC. THIS POWERFUL EARLY WINTER STORM SYSTEM WILL BRING SEVERAL ROUNDS OF SIGNIFICANT WEATHER TO THE REGION IN THE PROCESS. SNOW WILL BREAK OUT ACROSS THE REGION IN ADVANCE OF THE STORM LATE TONIGHT WITH SEVERAL INCHES OF ACCUMULATION BEFORE MIXING WITH SLEET AND FREEZING RAIN AND THEN THE MIX WILL CHANGE TO RAIN DURING WEDNESDAY MORNING. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY. PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS. WINTER WEATHER ADVISORY. HIGH WIND WARNING. IT WILL BECOME WINDY AHEAD OF THE STORM WEDNESDAY...BUT THE STRONGEST WINDS CAN BE EXPECTED IN THE WAKE OF THE STORM WEDNESDAY NIGHT AND THURSDAY. MUCH COLDER AIR WILL FLOOD ACROSS THE LOWER LAKES BEHIND THE DEPARTING STORM WEDNESDAY NIGHT AND THURSDAY WITH THE PRECIPITATION CHANGING BACK TO ALL SNOW LATER WEDNESDAY NIGHT. STRONG WINDS OF 25 TO 40 MPH WITH GUSTS OF 55 TO 60 MPH COULD CAUSE POWER OUTAGES AND DOWNED TREE LIMBS ALONG WITH LOCAL WHITEOUT CONDITIONS AT TIMES THROUGH THURSDAY. .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 NYZ001-002-092345- NIAGARA-ORLEANS- 631 PM EST TUE DEC 8 2009 ...WINTER WEATHER ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM EST WEDNESDAY... ...HIGH WIND WARNING IN EFFECT FROM 2 PM WEDNESDAY TO 7 PM EST THURSDAY... THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF WESTERN NEW YORK. .DAY ONE...TONIGHT. PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS. WINTER WEATHER ADVISORY. DEEP LOW PRESSURE WILL MOVE OUT OF THE CENTRAL PLAINS TO NEAR CHICAGO WEDNESDAY MORNING...THEN IT WILL FURTHER STRENGTHEN WEDNESDAY AND WEDNESDAY NIGHT AS IT LIFTS ACROSS MICHIGAN AND THE CENTRAL GREAT LAKES TO WESTERN QUEBEC. THIS POWERFUL EARLY WINTER STORM SYSTEM WILL BRING SEVERAL ROUNDS OF SIGNIFICANT WEATHER TO THE REGION IN THE PROCESS. SNOW WILL BREAK OUT ACROSS THE REGION IN ADVANCE OF THE STORM LATE TONIGHT WITH A COUPLE INCHES OF ACCUMULATION BEFORE MIXING WITH SLEET AND FREEZING RAIN AND THEN THE MIX WILL CHANGE TO RAIN WEDNESDAY MORNING. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY. PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS. WINTER WEATHER ADVISORY. HIGH WIND WARNING. IT WILL ALSO BECOME WINDY AHEAD OF THE STORM WEDNESDAY...BUT THE STRONGEST WINDS CAN BE EXPECTED IN THE WAKE OF THE STORM WEDNESDAY AFTERNOON THROUGH THURSDAY. MUCH COLDER AIR WILL FLOOD ACROSS THE REGION BEHIND THE DEPARTING STORM WEDNESDAY NIGHT AND THURSDAY. WINDS OF 25 TO 40 MPH WITH GUSTS TO 60 MPH COULD CREATE SCATTERED POWER OUTAGES AND DOWNED TREE LIMBS ALONG WITH WHITEOUTS AT TIMES WEDNESDAY NIGHT. THE STRONG WINDS WILL CONTINUE INTO THURSDAY. .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 NYZ010-092345- NORTHERN ERIE- 631 PM EST TUE DEC 8 2009 ...WINTER WEATHER ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM EST WEDNESDAY... ...HIGH WIND WARNING IN EFFECT FROM 2 PM WEDNESDAY TO 7 PM EST THURSDAY... ...LAKESHORE FLOOD WATCH IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH THURSDAY MORNING... ...WINTER STORM WATCH IN EFFECT FROM WEDNESDAY EVENING THROUGH THURSDAY EVENING... THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF WESTERN NEW YORK. .DAY ONE...TONIGHT. PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS. WINTER WEATHER ADVISORY. DEEP LOW PRESSURE WILL MOVE OUT OF THE CENTRAL PLAINS TO NEAR CHICAGO WEDNESDAY MORNING...THEN IT WILL FURTHER STRENGTHEN WEDNESDAY AND WEDNESDAY NIGHT AS IT LIFTS ACROSS MICHIGAN AND THE CENTRAL GREAT LAKES TO WESTERN QUEBEC. THIS POWERFUL EARLY WINTER STORM SYSTEM WILL BRING SEVERAL ROUNDS OF SIGNIFICANT WEATHER TO THE REGION IN THE PROCESS. SNOW WILL BREAK OUT ACROSS THE REGION IN ADVANCE OF THE STORM LATE TONIGHT WITH SEVERAL INCHES OF ACCUMULATION BEFORE MIXING WITH SLEET AND FREEZING RAIN AND THEN THE MIX WILL CHANGE TO RAIN DURING WEDNESDAY MORNING. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY. PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS. WINTER WEATHER ADVISORY. HIGH WIND WARNING. LAKESHORE FLOOD WATCH. WINTER STORM WATCH. IT WILL BE WINDY AHEAD OF THE STORM WEDNESDAY...BUT THE STRONGEST WINDS CAN BE EXPECTED IN THE WAKE OF THE STORM WEDNESDAY NIGHT AND THURSDAY. AS MUCH COLDER AIR FLOODS ACROSS THE LOWER LAKES BEHIND THE DEPARTING STORM WEDNESDAY NIGHT AND THURSDAY...SIGNIFICANT LAKE EFFECT SNOWS WILL DEVELOP. WHILE THE STRONG WINDS MAY INITIALLY PREVENT THE LAKE SNOWS FROM BECOMING TOO FOCUSED OVER ANY ONE AREA...WINDS OF 25 TO 40 MPH WITH GUSTS TO 60 MPH COULD PRODUCE NEAR BLIZZARD CONDITIONS AT TIMES ALONG WITH SCATTERED POWER OUTAGES AND DOWNED TREE LIMBS. THE LAKE SNOWS WILL LIKELY DEVELOP OVER THE BUFFALO METRO AREA WEDNESDAY EVENING BEFORE THEY SETTLE TO THE SOUTH ACROSS THE MORE TRADITIONAL LAKE ERIE SNOW BELT. THE COMBINATION OF THE LAKE SNOWS AND STRONG WINDS WILL LIKELY LEAD TO A HAZARDOUS THURSDAY MORNING COMMUTE IN THE BUFFALO METRO AREA WITH POTENTIALLY SIGNIFICANT LAKE EFFECT SNOWS THEN CONTINUING ACROSS THE LAKE ERIE SNOWBELT THROUGH THE END OF THE WEEK. A SURGE ON LAKE ERIE CAN BE EXPECTED AS WELL THAT COULD CAUSE SOME FLOODING PROBLEMS ALONG THE LAKE ERIE SHORE. .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 NYZ011-092345- GENESEE- 631 PM EST TUE DEC 8 2009 ...WINTER WEATHER ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM EST WEDNESDAY... ...HIGH WIND WARNING IN EFFECT FROM 2 PM WEDNESDAY TO 7 PM EST THURSDAY... ...WINTER STORM WATCH IN EFFECT FROM WEDNESDAY EVENING THROUGH THURSDAY EVENING... THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF WESTERN NEW YORK. .DAY ONE...TONIGHT. PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS. WINTER WEATHER ADVISORY. A STORM SYSTEM OVER THE NATIONS MID SECTION AND HEADING TOWARD THE CENTRAL LAKES WILL BRING A MIXED BAG OF WINTRY WEATHER TO THE AREA ALONG WITH STRONG WINDS. SNOW LATER TONIGHT WILL MIX WITH SLEET AND FREEZING RAIN LATE. A COUPLE OF INCHES OF SNOW AND SLEET IS EXPECTED TONIGHT ALONG WITH SOME ICE ACCUMULATION. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY. PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS. WINTER WEATHER ADVISORY. HIGH WIND WARNING. WINTER STORM WATCH. THE PRECIPITATION WILL CHANGE TO RAIN WEDNESDAY MORNING. IT WILL ALSO BECOME WINDY AHEAD OF THE STORM WEDNESDAY...BUT THE STRONGEST WINDS CAN BE EXPECTED IN THE WAKE OF THE STORM WEDNESDAY NIGHT AND THURSDAY. AS MUCH COLDER AIR FLOODS ACROSS THE LOWER LAKES BEHIND THE DEPARTING STORM WEDNESDAY NIGHT AND THURSDAY...SIGNIFICANT LAKE EFFECT SNOWS WILL DEVELOP. WHILE THE STRONG WINDS MAY INITIALLY PREVENT THE LAKE SNOWS FROM BECOMING TOO FOCUSED OVER ANY ONE AREA...WINDS OF AT LEAST 25 TO 40 MPH WITH GUSTS TO 60 MPH COULD PRODUCE NEAR BLIZZARD CONDITIONS AT TIMES DUE TO GREATLY REDUCED VISIBILITIES. THE STRONG WINDS COULD CAUSE SCATTERED POWER OUTAGES AND DOWNED TREE LIMBS. THE LAKE SNOWS WILL LIKELY DEVELOP OVER THE BUFFALO METRO AREA TO BATAVIA WEDNESDAY EVENING BEFORE THEY SETTLE TO THE SOUTH ACROSS THE MORE TRADITIONAL LAKE ERIE SNOW BELT. THE COMBINATION OF THE LAKE SNOWS AND STRONG WINDS WILL LIKELY LEAD TO A HAZARDOUS THURSDAY MORNING COMMUTE IN THE BUFFALO METRO AREA WITH POTENTIALLY SIGNIFICANT LAKE EFFECT SNOWS THEN CONTINUING ACROSS THE LAKE ERIE SNOWBELT THROUGH THE END OF THE WEEK. .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 NYZ012-020-021-092345- WYOMING-CATTARAUGUS-ALLEGANY- 631 PM EST TUE DEC 8 2009 ...WINTER WEATHER ADVISORY IN EFFECT FROM 10 PM THIS EVENING TO 8 AM EST WEDNESDAY... ...HIGH WIND WARNING IN EFFECT FROM 4 AM WEDNESDAY TO 7 PM EST THURSDAY... ...WINTER STORM WATCH IN EFFECT FROM WEDNESDAY EVENING THROUGH FRIDAY EVENING... THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF WESTERN NEW YORK. .DAY ONE...TONIGHT. PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS. WINTER WEATHER ADVISORY. HIGH WIND WARNING. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY. PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS. WINTER WEATHER ADVISORY. HIGH WIND WARNING. WINTER STORM WATCH. DEEP LOW PRESSURE WILL MOVE OUT OF THE CENTRAL PLAINS TO NEAR CHICAGO WEDNESDAY MORNING...THEN IT WILL FURTHER STRENGTHEN WEDNESDAY AND WEDNESDAY NIGHT AS IT LIFTS ACROSS MICHIGAN AND THE CENTRAL GREAT LAKES TO WESTERN QUEBEC. THIS POWERFUL EARLY WINTER STORM SYSTEM WILL BRING SEVERAL ROUNDS OF POTENTIALLY SIGNIFICANT WEATHER TO THE REGION IN THE PROCESS. SNOW WILL BREAK OUT ACROSS THE REGION IN ADVANCE OF THE STORM LATER THIS EVENING AND IT IS EXPECTED TO MIX WITH SLEET AND FREEZING RAIN. SEVERAL INCHES OF SNOW AND SLEET ARE EXPECTED TONIGHT ALONG WITH A TENTH TO A QUARTER INCH OF ICE. THE PRECIPITATION WILL CHANGE TO RAIN WEDNESDAY MORNING. IT WILL ALSO BECOME VERY WINDY AHEAD OF THE STORM WEDNESDAY MORNING EARLY WEDNESDAY...BUT THE STRONGEST WINDS CAN BE EXPECTED IN THE WAKE OF THE STORM WEDNESDAY AND THURSDAY. AS MUCH COLDER AIR FLOODS ACROSS THE LOWER LAKES BEHIND THE DEPARTING STORM WEDNESDAY NIGHT AND THURSDAY...SIGNIFICANT LAKE EFFECT SNOWS WILL DEVELOP. WHILE THE STRONG WINDS MAY INITIALLY PREVENT THE LAKE SNOWS FROM BECOMING TOO FOCUSED OVER ANY ONE AREA...WINDS OF AT LEAST 25 TO 40 MPH WILL PRODUCE NEAR BLIZZARD CONDITIONS AT TIMES DUE TO GREATLY REDUCED VISIBILITIES. THE LAKE SNOWS WILL LIKELY DEVELOP OVER THE BUFFALO METRO AREA WEDNESDAY EVENING BEFORE THEY SETTLE TO THE SOUTH ACROSS THE MORE TRADITIONAL LAKE SNOW BELTS. THE STRONG WINDS COULD ALSO CREATE SCATTERED POWER OUTAGES AND DOWNED TREE LIMBS. THE COMBINATION OF THE LAKE SNOWS AND STRONG WINDS WILL LIKELY LEAD TO A HAZARDOUS THURSDAY MORNING COMMUTE...WITH POTENTIALLY SIGNIFICANT LAKE EFFECT SNOWS THEN CONTINUING INTO THE END OF THE WEEK. .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 NYZ019-085-092345- CHAUTAUQUA-SOUTHERN ERIE- 631 PM EST TUE DEC 8 2009 ...WINTER WEATHER ADVISORY IN EFFECT FROM 10 PM THIS EVENING TO 8 AM EST WEDNESDAY... ...HIGH WIND WARNING IN EFFECT FROM 4 AM WEDNESDAY TO 7 PM EST THURSDAY... ...LAKESHORE FLOOD WATCH IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH THURSDAY MORNING... ...WINTER STORM WATCH IN EFFECT FROM WEDNESDAY EVENING THROUGH FRIDAY EVENING... THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF WESTERN NEW YORK. .DAY ONE...TONIGHT. PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS. WINTER WEATHER ADVISORY. HIGH WIND WARNING. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY. PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS. WINTER WEATHER ADVISORY. HIGH WIND WARNING. LAKESHORE FLOOD WATCH. WINTER STORM WATCH. DEEP LOW PRESSURE WILL MOVE OUT OF THE CENTRAL PLAINS TO NEAR CHICAGO WEDNESDAY MORNING...THEN IT WILL FURTHER STRENGTHEN WEDNESDAY AND WEDNESDAY NIGHT AS IT LIFTS ACROSS MICHIGAN AND THE CENTRAL GREAT LAKES TO WESTERN QUEBEC. THIS POWERFUL EARLY WINTER STORM SYSTEM WILL BRING SEVERAL ROUNDS OF POTENTIALLY SIGNIFICANT WEATHER TO THE REGION IN THE PROCESS. SNOW...SLEET AND FREEZING RAIN WILL DEVELOP LATER THIS EVENING...CHANGING TO RAIN ALONG THE LAKE SHORE. A COUPLE OF INCHES OF ACCUMULATION IS EXPECTED TONIGHT WITH SOME ICE ACCUMULATION AS WELL. THE PRECIPITATION WILL CHANGE TO RAIN WEDNESDAY MORNING. IT WILL ALSO BECOME WINDY AHEAD OF THE STORM WEDNESDAY MORNING...BUT THE STRONGEST WINDS CAN BE EXPECTED IN THE WAKE OF THE STORM WEDNESDAY NIGHT AND THURSDAY. AS MUCH COLDER AIR FLOODS ACROSS THE LOWER LAKES BEHIND THE DEPARTING STORM WEDNESDAY NIGHT AND THURSDAY...SIGNIFICANT LAKE EFFECT SNOWS WILL DEVELOP. WHILE THE STRONG WINDS MAY INITIALLY PREVENT THE LAKE SNOWS FROM BECOMING TOO FOCUSED OVER ANY ONE AREA...WINDS OF AT LEAST 25 TO 40 MPH WITH GUSTS TO 60 MPH WILL PRODUCE NEAR BLIZZARD CONDITIONS AT TIMES DUE TO GREATLY REDUCED VISIBILITIES. THE LAKE SNOWS WILL LIKELY DEVELOP OVER THE BUFFALO METRO AREA WEDNESDAY EVENING BEFORE THEY SETTLE TO THE SOUTH ACROSS THE MORE TRADITIONAL LAKE SNOW BELTS. THE STRONG WINDS COULD CREATE SCATTERED POWER OUTAGES ALONG WITH DOWNED TREE LIMBS. THE LAKE SNOWS WILL CONTINUE THROUGH MUCH OF THE END OF THE WEEK. .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 NYZ007-008-092345- JEFFERSON-LEWIS- 631 PM EST TUE DEC 8 2009 ...WINTER WEATHER ADVISORY IN EFFECT FROM 3 AM TO NOON EST WEDNESDAY... ...HIGH WIND WARNING IN EFFECT FROM 9 AM WEDNESDAY TO 7 PM EST THURSDAY... ...WINTER STORM WATCH IN EFFECT FROM LATE WEDNESDAY NIGHT THROUGH FRIDAY EVENING... THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL NEW YORK. .DAY ONE...TONIGHT. PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS. WINTER WEATHER ADVISORY. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY. PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS. WINTER WEATHER ADVISORY. HIGH WIND WARNING. WINTER STORM WATCH. DEEP LOW PRESSURE WILL MOVE OUT OF THE CENTRAL PLAINS TO NEAR CHICAGO WEDNESDAY MORNING...THEN IT WILL FURTHER STRENGTHEN WEDNESDAY AND WEDNESDAY NIGHT AS IT LIFTS ACROSS MICHIGAN AND THE CENTRAL GREAT LAKES TO WESTERN QUEBEC. THIS POWERFUL EARLY WINTER STORM SYSTEM WILL BRING SEVERAL ROUNDS OF POTENTIALLY SIGNIFICANT WEATHER TO THE REGION IN THE PROCESS. SNOW WILL BREAK OUT ACROSS THE REGION IN ADVANCE OF THE STORM LATE TONIGHT AND WEDNESDAY MORNING. AN INCH OR TWO IS EXPECTED BY WEDNESDAY MORNING WITH ANOTHER 2 TO 4 INCHES WEDNESDAY BEFORE CHANGING TO SLEET AND FREEZING RAIN AND THEN TO RAIN BY MIDDAY. IT WILL ALSO BECOME WINDY AHEAD OF THE STORM WEDNESDAY...BUT THE STRONGEST WINDS CAN BE EXPECTED IN THE WAKE OF THE STORM WEDNESDAY NIGHT AND THURSDAY. SNOW AND RAIN WEDNESDAY NIGHT WILL CHANGE TO SNOW OVERNIGHT. AS MUCH COLDER AIR FLOODS ACROSS THE LOWER LAKES BEHIND THE DEPARTING STORM WEDNESDAY NIGHT AND THURSDAY...SIGNIFICANT LAKE EFFECT SNOWS WILL DEVELOP. WHILE THE STRONG WINDS MAY INITIALLY PREVENT THE LAKE SNOWS FROM BECOMING TOO FOCUSED OVER ANY ONE AREA...WINDS OF AT LEAST 25 TO 40 MPH WITH GUSTS OF 55 TO 60 MPH WILL LIKELY PRODUCE NEAR BLIZZARD CONDITIONS AT TIMES DUE TO GREATLY REDUCED VISIBILITIES. THE LAKE SNOWS WILL LIKELY DEVELOP NEAR THE WATERTOWN METRO AREA WEDNESDAY EVENING BEFORE THEY SETTLE TO THE SOUTH TO THE TUG HILL REGION. THE COMBINATION OF THE LAKE SNOWS AND STRONG WINDS WILL LIKELY LEAD TO A HAZARDOUS THURSDAY MORNING COMMUTE...WITH POTENTIALLY SIGNIFICANT LAKE EFFECT SNOWS THEN CONTINUING INTO THE END OF THE WEEK. THE GREATEST POTENTIAL FOR SIGNIFICANT LAKE SNOW ACCUMULATIONS WILL COME OVER OSWEGO COUNTY AND THE TUG HILL REGION. .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 NYZ006-092345- OSWEGO- 631 PM EST TUE DEC 8 2009 ...WINTER WEATHER ADVISORY IN EFFECT FROM 3 AM TO NOON EST WEDNESDAY... ...HIGH WIND WARNING IN EFFECT FROM 5 PM WEDNESDAY TO 7 PM EST THURSDAY... ...WINTER STORM WATCH IN EFFECT FROM LATE WEDNESDAY NIGHT THROUGH FRIDAY EVENING... THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL NEW YORK. .DAY ONE...TONIGHT. PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS. WINTER WEATHER ADVISORY. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY. PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS. WINTER WEATHER ADVISORY. HIGH WIND WARNING. WINTER STORM WATCH. DEEP LOW PRESSURE WILL MOVE OUT OF THE CENTRAL PLAINS TO NEAR CHICAGO WEDNESDAY MORNING...THEN IT WILL FURTHER STRENGTHEN WEDNESDAY AND WEDNESDAY NIGHT AS IT LIFT ACROSS MICHIGAN AND THE CENTRAL GREAT LAKES TO WESTERN QUEBEC. THIS POWERFUL EARLY WINTER STORM SYSTEM WILL BRING SEVERAL ROUNDS OF POTENTIALLY SIGNIFICANT WEATHER TO THE REGION IN THE PROCESS. SNOW WILL BREAK OUT ACROSS THE REGION IN ADVANCE OF THE STORM LATE TONIGHT WITH 2 TO 3 INCHES BY MORNING. SNOW...SLEET AND FREEZING RAIN WILL CHANGE TO RAIN IN THE MORNING WITH ANOTHER INCH OR TWO ACCUMULATION ALONG WITH SOME ICE ACCUMULATION. IT WILL ALSO BECOME WINDY AHEAD OF THE STORM WEDNESDAY...BUT THE STRONGEST WINDS CAN BE EXPECTED IN THE WAKE OF THE STORM WEDNESDAY NIGHT AND THURSDAY. AS MUCH COLDER AIR FLOODS ACROSS THE LOWER LAKES BEHIND THE DEPARTING STORM LATER WEDNESDAY NIGHT AND THURSDAY...SIGNIFICANT LAKE EFFECT SNOWS WILL DEVELOP LATE WEDNESDAY NIGHT AND CONTINUE THROUGH FRIDAY. WHILE THE STRONG WINDS MAY INITIALLY PREVENT THE LAKE SNOWS FROM BECOMING TOO FOCUSED OVER ANY ONE AREA...WINDS OF AT LEAST 25 TO 40 MPH WITH GUSTS TO 60 MPH WILL LIKELY PRODUCE NEAR BLIZZARD CONDITIONS AT TIMES DUE TO GREATLY REDUCED VISIBILITIES. THE LAKE SNOWS WILL LIKELY DEVELOP NEAR THE WATERTOWN METRO AREA WEDNESDAY EVENING BEFORE THEY SETTLE TO THE SOUTH TO THE TUG HILL REGION ON THURSDAY. THE COMBINATION OF THE LAKE SNOWS AND STRONG WINDS WILL LIKELY LEAD TO A HAZARDOUS THURSDAY MORNING COMMUTE...WITH POTENTIALLY SIGNIFICANT LAKE EFFECT SNOWS THEN CONTINUING INTO THE END OF THE WEEK. THE GREATEST POTENTIAL FOR SIGNIFICANT LAKE SNOW ACCUMULATIONS WILL COME OVER OSWEGO COUNTY AND THE TUG HILL REGION. .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 SLZ022-024-092345- SAINT LAWRENCE RIVER FROM CAPE VINCENT TO OGDENSBURG- SAINT LAWRENCE RIVER FROM OGDENSBURG TO SAINT REGIS- 631 PM EST TUE DEC 8 2009 ...GALE WARNING IN EFFECT FROM 1 AM TO 7 PM EST THURSDAY... THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE NEW YORK WATERS OF THE SAINT LAWRENCE RIVER. .DAY ONE...TONIGHT. THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY. PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS. GALE WARNING. GALE FORCE WINDS WILL DEVELOP EARLY THURSDAY MORNING AS A POWERFUL EARLY WINTER STORM WILL LIFTS ACROSS THE CENTRAL GREAT LAKES TO WESTERN QUEBEC. .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 LEZ020-040-041-092345- UPPER NIAGARA RIVER AND BUFFALO HARBOR- LAKE ERIE NEARSHORE WATERS FROM RIPLEY TO DUNKIRK- LAKE ERIE NEARSHORE WATERS FROM DUNKIRK TO BUFFALO- 631 PM EST TUE DEC 8 2009 ...STORM WARNING IN EFFECT FROM 2 PM WEDNESDAY TO 7 PM EST THURSDAY... THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF LAKE ERIE. .DAY ONE...TONIGHT. THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY. PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS. STORM WARNING. STORM FORCE WINDS WILL DEVELOP ACROSS LAKE ERIE AND THE UPPER NIAGARA RIVER AND BUFFALO HARBOR WEDNESDAY AFTERNOON AND CONTINUE THROUGH THURSDAY. STORM FORCE WINDS ARE EVEN POSSIBLE LATE WEDNESDAY NIGHT AND THURSDAY AS A POWERFUL EARLY WINTER STORM WILL LIFT ACROSS THE CENTRAL GREAT LAKES TO WESTERN QUEBEC. .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 LOZ042>045-062>065-092345- 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- 631 PM EST TUE DEC 8 2009 ...GALE WARNING IN EFFECT FROM 7 PM WEDNESDAY TO 7 PM EST THURSDAY... THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE NEW YORK WATERS OF LAKE ONTARIO. .DAY ONE...TONIGHT. THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY. PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS. GALE WARNING. GALE FORCE WINDS WILL DEVELOP ACROSS THE LAKE WEDNESDAY NIGHT...WITH STORM FORCE WINDS POSSIBLE LATE WEDNESDAY NIGHT AND THURSDAY AS A POWERFUL EARLY WINTER STORM WILL LIFT ACROSS THE CENTRAL GREAT LAKES TO WESTERN QUEBEC. .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
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BUFFALO NY 1146 PM EST TUE DEC 8 2009 NYZ001-002-010-011-090700- NIAGARA-ORLEANS-NORTHERN ERIE-GENESEE- INCLUDING THE CITIES OF...NIAGARA FALLS...MEDINA...BUFFALO... BATAVIA 1146 PM EST TUE DEC 8 2009 SNOW WILL GRADUALLY SPREAD NORTHWARD ACROSS THE REGION REACHING THE LAKE ONTARIO SHORE BY 1 AM. THE SNOW MAY BE MIXED WITH SLEET IN SOME SPOTS AND PICK UP IN INTENSITY THROUGH 2 AM WITH UNTREATED ROADS GRADUALLY BECOMING SNOW COVERED. NYZ012-019>021-085-090700- WYOMING-CHAUTAUQUA-CATTARAUGUS-ALLEGANY-SOUTHERN ERIE- INCLUDING THE CITIES OF...WARSAW...JAMESTOWN...OLEAN... WELLSVILLE...ORCHARD PARK...SPRINGVILLE 1146 PM EST TUE DEC 8 2009 SNOW WILL CONTINUE ACROSS THE REGION WITH A HALF TO AN INCH IN AN HOUR. THE SNOW MAY BE MIXED WITH SLEET IN SOME AREAS. UNTREATED ROADS WILL BE SNOW COVERED AND SLIPPERY. SOUTHEAST WINDS OF 10 TO 20 MPH WITH GUSTS TO 30 MPH WILL CREATE POOR VISIBILITIES AT TIMES IN BLOWING AND DRIFTING SNOW. MOTORISTS SHOULD ALLOW EXTRA TIME TO REACH THEIR DESTINATIONS. JJP
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BUFFALO NY 223 AM EST WED DEC 9 2009 NYZ001-002-010-011-090930- NIAGARA-ORLEANS-NORTHERN ERIE-GENESEE- INCLUDING THE CITIES OF...NIAGARA FALLS...MEDINA...BUFFALO... BATAVIA 223 AM EST WED DEC 9 2009 ...SLIPPERY DRIVING CONDITIONS OVERNIGHT... A MIX OF SNOW AND SLEET WAS FALLING ACROSS THE REGION AS OF 2 AM. THIS PRECIPITATION WILL CONTINUE AT VARYING RATES THROUGH ABOUT 4 AM...THEN BEGIN TO CHANGE TO SLEET AND EVENTUALLY RAIN BY DAYBREAK. LOOK FOR 1 TO 2 INCHES TO ACCUMULATE...ENOUGH TO MAKE UNTREATED ROADS VERY SLICK. EXERCISE CAUTION IF YOU MUST TRAVEL IN THE PREDAWN HOURS. NYZ012-019>021-085-090930- WYOMING-CHAUTAUQUA-CATTARAUGUS-ALLEGANY-SOUTHERN ERIE- INCLUDING THE CITIES OF...WARSAW...JAMESTOWN...OLEAN... WELLSVILLE...ORCHARD PARK...SPRINGVILLE 223 AM EST WED DEC 9 2009 ...SLIPPERY DRIVING CONDITIONS OVERNIGHT... SNOW AND SLEET CONTINUE TO FALL ACROSS THE REGION AS OF 2 AM. THE PRECIPITATION WAS MOSTLY RAIN ALONG THE LAKE ERIE SHORE AND WILL REMAIN SO. ELSEWHERE...THE SNOW AND SLEET WILL GRADUALLY TRANSITION OVER TO FREEZING RAIN AND RAIN BY 5 AM. LOOK FOR 1 TO 2 INCHES TO ACCUMULATE...ENOUGH TO MAKE UNTREATED ROADS VERY SLICK. EXERCISE CAUTION IF YOU MUST TRAVEL IN THE PREDAWN HOURS. NYZ003-004-013-014-090930- MONROE-WAYNE-LIVINGSTON-ONTARIO- INCLUDING THE CITIES OF...ROCHESTER...NEWARK...GENESEO... CANANDAIGUA 223 AM EST WED DEC 9 2009 ...SLIPPERY DRIVING CONDITIONS OVERNIGHT... SNOW CONTINUED TO FALL ACROSS THE REGION AS OF 2 AM. IT WILL CONTINUE...MODERATE AT TIMES...THROUGH AT LEAST 4 AM...THEN BEGIN TO MIX WITH SLEET. LOOK FOR 2 TO 3 INCHES TO ACCUMULATE BY 4 AM...ENOUGH TO MAKE UNTREATED ROADS VERY SLICK. EXERCISE CAUTION IF YOU MUST TRAVEL IN THE PREDAWN HOURS. SFM
The national radar mosaic for the moment the first event began.
8 high wind. Local standard time, as filed.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in New York in 2009Every state in 2009This day in weather historyWarnings in New York, December 2009
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 206967, 206968, 206966, 206969, 206970, 206971, 206972, 206973.