Alert archive / New York / Special Weather Statements in 2014

Special Weather Statement, NWS Buffalo, NY

November 20, 2014Erie County, Genesee County, Wyoming County, New York

NWS Buffalo, NY issued this special weather statement at Nov 20, 2014, 11:21 AM EST for Erie County, Genesee County, Wyoming County, New York. It was in force for 84 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Nov 20, 2014, 11:21 AM EST (16:21 UTC)
Expired
Nov 20, 2014, 12:45 PM EST
In force
84 min
Issued by
NWS Buffalo, NY

Counties Erie County, NY, Genesee County, NY, Wyoming County, NY

The radar

The Buffalo radar (KBUF), 43 km from the middle of the area, began a volume at 16:23 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, 4.4 hours before the alert went out and 43 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.

Skew-T log-pSkew-T log-p diagram, Buffalo Intl Airport, NY at 12:00Z on 2014-11-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Buffalo Intl Airport, NY at 12:00Z on 2014-11-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -15 square meters per square second.1939587897117Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1231 m above ground
0-6 km bulk shear
71 kt
0-1 km storm-relative helicity
-15 m²/s²
0-3 km storm-relative helicity
-10 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

843 
WWUS81 KBUF 201621
SPSBUF

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
1121 AM EST THU NOV 20 2014

NYZ010>012-019-020-085-201745-
CATTARAUGUS NY-CHAUTAUQUA NY-ERIE NY-GENESEE NY-WYOMING NY-
1121 AM EST THU NOV 20 2014

...LAKE EFFECT SNOW WILL CONTINUE TO IMPACT THE BUFFALO SOUTHTOWNS
AND LAKE ERIE SHORELINE EAST TO THE BOSTON HILLS AND WYOMING 
COUNTY...

* AT 1111 AM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LAKE EFFECT SNOW BAND CAPABLE OF PRODUCING SNOWFALL RATES OF 3
  INCHES PER HOUR OR MORE...AND VISIBILITY NEAR ZERO AT TIMES.       
  THIS LAKE EFFECT SNOW BAND WAS LOCATED ALONG THE LAKE ERIE         
  SHORELINE OF CHAUTAUQUA COUNTY NORTHEAST ACROSS THE BOSTON HILLS   
  AND SOUTHTOWNS...INTO MUCH OF WYOMING COUNTY.  THE BAND WILL MOVE  
  ABOUT 5 MILES TO THE NORTH BEFORE NOON.  TOWNS                     
  INCLUDING HAMBURG...ORCHARD PARK...ELMA...WEST SENECA WILL START   
  TO SEE MORE CONTINUOUS SNOWFALL WHILE THE NEXT TIER OF TOWNS WILL  
  END UP ON THE NORTHERN FRINGE...INCLUDING LACKAWANNA AND LANCASTER 
  AND ALDEN. 

* SOME LOCATIONS IN THE HEART OF THE BAND INCLUDE...
  BOSTON AND WEST FALLS...
  COLDEN...WALES...EAST AURORA...
  BENNINGTON AND ATTICA...
  VARYSBURG...HOLLAND AND MARILLA...  

THIS INCLUDES THE NEW YORK THRUWAY BETWEEN EXITS 48 AND 59.

HERE ARE SOME IMPORTANT SAFETY REMINDERS...

* DO NOT OVEREXERT YOURSELF...SHOVELING OR EVEN WALKING IN THE
  HEAVY SNOW IS EXTREMELY TAXING. TAKE PLENTY OF BREAKS TO AVOID
  OVEREXERTING YOURSELF.

* OVERSTRESSED ROOFS CAN COLLAPSE. SNOW REMOVAL OFF STRUCTURES IS
  A DANGEROUS ACTIVITY THAT SHOULD ONLY BE DONE BY QUALIFIED
  INDIVIDUALS FOLLOWING SAFETY PROTOCOLS TO MINIMIZE RISKS. IF AT
  ANY TIME THERE IS A CONCERN THAT SNOW LOADS MAY CAUSE A
  COLLAPSE...EVACUATE THE BUILDING. SIGNS OF OVERSTRESSED ROOFS
  MAY INCLUDE SAGGING TILES OR BOARDS. POPPING...CRACKING...OR
  CREAKING SOUNDS ALSO SIGNAL SIGNIFICANT DANGER.

* TRAVEL SAFETY...MANY ROADS ARE STILL IN EXTREMELY POOR CONDITION
  OR ARE IMPASSIBLE. HEED LOCAL...REGIONAL AND OTHER EMERGENCY
  TRAVEL BANS. TAKE THE TIME NOW AND PLACE A WINTER SAFETY KIT IN
  YOUR CAR. ITEMS INCLUDE BUT ARE NOT LIMITED TO...A FULLY CHARGED
  CELL PHONE...BLANKETS...FLASHLIGHT...KNIFE...NON-PERISHABLE
  FOOD...CLOTHING...AND A SHOVEL.

LAT...LON 4247 7939 4250 7936 4256 7916 4261 7913
      4265 7907 4270 7905 4271 7899 4278 7886
      4287 7889 4305 7806 4258 7821 4243 7943
      4246 7943

$$

ZAFF

What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Nov 20, 9:53 AM EST, 1 hour 28 minutes earlier.

Area forecast discussion, Nov 20, 9:53 AM EST, 1 hour 28 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BUFFALO NY
953 AM EST THU NOV 20 2014

.SYNOPSIS...
SIGNIFICANT LAKE EFFECT SNOWS WILL ONCE AGAIN BE FOCUSED NORTHEAST
OF BOTH LAKES TODAY...AS A FRESH COLD AIRMASS WILL DEEPEN OVER THE
REGION. THE LAKE SNOWS WILL SETTLE TO THE SOUTH TONIGHT WHERE THEY
WILL BE CONCENTRATED OVER THE MORE TYPICAL LAKE SNOW BELTS OF THE
WESTERN SOUTHERN TIER AND SOUTH OF THE TUG HILL THROUGH FRIDAY.
NOTICEABLY MILDER AIR WILL THEN SURGE INTO OUR REGION DURING THE
UPCOMING AND LAST INTO THE EARLY PART OF THE NEW WORK WEEK.

&&

.NEAR TERM /THROUGH TONIGHT/...
...RENEWED LAKE EFFECT WILL DUMP MULTIPLE FEET OF SNOW ON AREAS
NORTHEAST OF BOTH LAKES THROUGH TONIGHT...INCLUDING THE AREA THAT
WAS JUST CRIPPLED WITH 3 TO 5 FEET OF SNOW DOWNWIND OF LAKE ERIE...

WE ARE STILL ON TRACK FOR STORM TOTALS FROM THIS SECOND EVENT
REACHING 3 FEET OFF LAKE ERIE...ALTHOUGH BASED ON RECENT RADAR
TRENDS WE MOVED THE GREATEST TOTALS ABOUT ONE TOWNSHIP SOUTHWARD
FROM ANGOLA TO THE NORTHERN BOSTON HILLS...EAST AURORA...AND
NORTHERN WYOMING COUNTY. OFF LAKE ONTARIO WE ARE STILL ON TRACK FOR
STORM TOTALS OF 1 TO 2 FEET...WITH LOCAL AMOUNTS APPROACHING 3 FEET
ON THE TUG HILL PLATEAU.

RADAR IMAGERY THIS MORNING SHOWS THAT THE LAKE ERIE BAND HAS DRIFTED
SOUTH FROM NEAR DUNKIRK TO THE BOSTON HILLS AND WYOMING COUNTY. IT
SHOULD STAY THERE FOR A FEW MORE HOURS WITH A FEW WOBBLES NORTH AND
SOUTH...THEN BEGIN TO DRIFT BACK NORTH BY EARLY AFTERNOON. UPSTREAM
SATELLITE AND RADAR DATA SHOW A SUBTLE BACKING OF BOUNDARY LAYER
FLOW ACROSS LOWER MICHIGAN THIS MORNING IN RESPONSE TO AN UPSTREAM
SHORTWAVE. WE BELIEVE THIS WIND SHIFT WILL BE ENOUGH TO LIFT THE
BAND FROM ITS CURRENT LOCATION BACK TO THE IMMEDIATE BUFFALO
SOUTHTOWNS FROM HAMBURG TO ORCHARD PARK...POSSIBLY THE SOUTHERN
PORTION OF LANCASTER EAST TO BATAVIA FOR SEVERAL HOURS DURING THE
MID AFTERNOON. FINALLY A MORE SUBSTANTIAL VEERING OF LOW LEVEL FLOW
WILL PUSH THE BAND SOUTH THIS EVENING.

THE FLOW WILL VEER 300 DURING THE COURSE OF TONIGHT. THIS WILL
DIRECT THE LAKE SNOWS FURTHER SOUTH ACROSS THE WESTERN SOUTHERN TIER
WHERE A FOOT OF ACCUMULATION IS EXPECTED. THE HIGHEST AMOUNTS ARE
EXPECTED ALONG AND JUST EAST OF THE CHAUTAUQUA RIDGE.

OFF LAKE ONTARIO LAKE EFFECT HAS HAD SOME EMBEDDED AREAS OF HEAVY
SNOW...BUT THERE WERE TWO SEPARATE BANDS WITH ONE HAVING ORIGINS
FROM THE LAKE ERIE BAND AND A SEPARATE LAKE ONTARIO BAND. THE
NORTHERN LAKE ONTARIO BAND SHOULD BECOME DOMINANT AND FOCUS ON THE
WATERTOWN AND FORT DRUM AREAS THROUGH THE AFTERNOON BEFORE MOVING
SOUTH THIS EVENING. THE BAND WILL THEN FOCUS ON THE TUG HILL REGION
FOR A GOOD PART OF THE NIGHT BEFORE SETTLING FARTHER SOUTH ACROSS
OSWEGO COUNTY LATE.

LAKE INDUCED INSTABILITY AND MOISTURE ARE STILL SUPPORTIVE OF
THUNDER AND LIGHTNING...ESPECIALLY ON LAKE ERIE TODAY AND LAKE
ONTARIO TONIGHT. EXPECT SNOWFALL RATES OF 3 TO 5 INCHES IN THE
HEAVIEST PORTION OF THE BAND TODAY OFF LAKE ERIE...WITH SOMEWHAT
LIGHTER 1-3 INCH PER HOUR RATES OFF ONTARIO. TONIGHT THE ROLES
REVERSE...WITH LAKE ONTARIO PICKING UP TO 3 TO 5 INCHES PER HOUR AS
FLOW BECOMES WESTERLY AND INCREASES FETCH AND BAND ORGANIZATION. THE
LAKE ERIE SNOW SHOULD WEAKEN TO 1 TO 3 INCHES PER HOUR AS IT PUSHES
SOUTHWARD INTO THE SOUTHERN TIER.

A PATTERN VERY REMINISCENT OF LAST YEARS WINTER WILL BE IN PLACE
ACROSS NORTH AMERICA TODAY...AS RIDGING WILL BE FOUND OVER THE
WESTERN THIRD OF THE CONTINENT WHILE AN ANOMALOUSLY DEEP TROUGH WILL
BE CENTERED OVER THE GREAT LAKES. THIS WILL KEEP THE DOOR WIDE OPEN
FOR COLD AIR TO CONTINUE TO POUR SOUTHWARDS ACROSS THE RELATIVELY
WARM WATERS OF THE GREAT LAKES. THEREIN LIES THE FORECAST PROBLEM
FOR WESTERN AND NORTH CENTRAL NEW YORK.

A DEEP...CYCLONIC FLOW OF -14C H85 AIR WILL CIRCULATE ACROSS LAKES
ERIE AND ONTARIO TODAY AND TONIGHT. THIS WILL ESTABLISH IMPRESSIVE
INSTABILITY OVER THE LOWER GREAT LAKES...AND WITH A LOW SHEAR
ENVIRONMENT AND A CAPPING INVERSION RISING FROM 10K FT TO AT LEAST
15K...THE INGREDIENTS WILL BE IN PLACE FOR ANOTHER PROMINENT ROUND
OF LAKE EFFECT SNOW. WHILE THIS WILL CERTAINLY HAVE AN IMPACT ON
SITES EAST AND NORTHEAST OF LAKE ONTARIO...A GREATER CONCERN WILL BE
NORTHEAST OF LK ERIE WHERE AT LEAST SOME OF THIS SNOW WILL FALL ON
AREAS THAT RECEIVED UP TO FIVE FEET OF SNOW JUST 30 HOURS AGO.

 OUTSIDE OF THE LAKE EFFECT AREAS...IT WILL BE COLD WITH SOME
FLURRIES. TEMPERATURES TODAY WILL BE GENERALLY IN THE MID TO UPPER
20S WITH GUSTY SOUTHWEST WINDS PRODUCING WIND CHILL VALUES IN THE
TEENS. MERCURY READINGS TONIGHT WILL SETTLE INTO THE TEENS IN MOST
AREAS...ALTHOUGH READINGS WILL REMAIN IN THE 20S WHERE LAKE
CLOUDS/PCPN WILL BE COMMON NEAR LAKE ONTARIO.

&&

.SHORT TERM /FRIDAY THROUGH SATURDAY NIGHT/...
LAKE EFFECT STORM ROUND 2 WILL COME TO AN END FRIDAY NIGHT OFF BOTH
LAKES THEN EXPECTING A WARM ADVECTION PATTERN TO SET UP THROUGH
SATURDAY. THIS WILL BRING WARMING TEMPERATURES UNDER SOUTHERLY WINDS
ALONG WITH THE CHANCE FOR SOME MIXED PRECIPITATION AS VERTICAL
TEMPERATURE PROFILES SHOW A WARM NOSE TRIES TO PUSH ABOVE FREEZING
BEFORE SURFACE TEMPERATURES DO.

FOR THE LAKE EFFECT OFF LAKE ERIE...
LAKE INDUCED EQUILIBRIUM LEVELS WILL RUN AROUND 15KFT FRIDAY MORNING
BEFORE DROPPING STEADILY DURING THE DAY FRIDAY AS HIGH PRESSURE
SHIFTS FROM THE OHIO VALLEY EAST TO THE MID-ATLANTIC WITH ASSOCIATED
RIDGING DRIVING DOWN A SUBSIDENCE INVERSION. EXPECT MOST OF THE SNOW
TO BE CONFINED TO CHAUTAUQUA AND THE WESTERN HALF OF CATTARAUGUS
COUNTIES DURING THE DAY UNDER A 290-300 DEGREE FLOW. THE LAKE SNOW
SHOULD STEADILY WEAKEN FRIDAY AFTERNOON AS INVERSION HEIGHTS LOWER.
THE STEERING WINDS ARE FORECAST TO BACK AS THE SURFACE RIDGING
BUILDS ACROSS WESTERN NY AND A WEAK BAND OF SNOW SHOWERS WILL SHIFT
BACK NORTH OVER SOUTHERN ERIE COUNTY WHILE DISSIPATING.

OFF LAKE ONTARIO...
LAKE INDUCED EQUILIBRIUM LEVELS WILL RUN CLOSE TO 18KFT FRIDAY
BEFORE DROPPING STEADILY FRIDAY AND FRIDAY NIGHT ALSO DUE TO A
LOWERING INVERSION. FRIDAY MORNING THE BAND IS EXPECTED TO EXTEND
ACROSS THE SOUTHEAST LAKE SHORE THEN IS FORECAST TO DROP SOUTH TO
BETWEEN ROCHESTER AND OSWEGO AS WINDS VEER TO AROUND 310 DEGREES.
CURRENT THINKING STILL REMAINS THAT THE TRANSITORY NATURE OF THIS
BAND SHOULD PREVENT SIGNIFICANT ACCUMULATIONS OVER ANY ONE LOCATION
SO NOT ENOUGH CONFIDENCE YET ON HIGHER AMOUNTS IN THOSE AREAS BUT
THIS WILL CONTINUE TO BE MONITORED.

SIMILAR TO WHAT IS EXPECTED ON LAKE ERIE BUT SEVERAL HOURS
LATER...BOUNDARY LAYER FLOW IS FORECAST TO BACK AS SURFACE RIDGING
BUILDS NORTH. THIS BACKING FLOW WILL CARRY THE LAKE EFFECT BACK
NORTH ACROSS OSWEGO COUNTY DURING THE EVENING EVENTUALLY DISSIPATING
ACROSS THE TUG HILL UNDER THE LOWERING INVERSION.

ON SATURDAY THE STRONG SURFACE HIGH OVER THE MID-ATLANTIC IS
FORECAST TO SHIFT EAST OFF THE COAST. STRENGTHENING SOUTHWEST FLOW ON
THE BACKSIDE OF THE HIGH WILL ADVECT MUCH WARMER AIR AND GULF
MOISTURE NORTHWARD ACROSS THE GREAT LAKES. WHILE THE MORNING SHOULD
REMAIN DRY WITH JUST INCREASING CLOUDS...CHANCES OF MIXED
PRECIPITATION INCLUDING SLEET AND POSSIBLE FREEZING RAIN WILL SHIFT
OVER WESTERN AND CENTRAL NEW YORK AS WARM AIR OVERRIDES STILL
SUB-FREEZING SURFACE TEMPS. EXACT P-TYPE WILL DEPEND ON THE SPEED AT
WHICH TEMPERATURE COLUMNS WARM AND MOISTEN. NAM FORECAST WARM LAYER
TEMPS QUICKLY RISE SEVERAL DEGREES ABOVE FREEZING BY MIDDAY SATURDAY
SO ANY MIX IF IT OCCURS SHOULD BE BRIEF AND QUICKLY CHANGE OVER TO
SOME LIGHT SHOWERS OR SPRINKLES. COOLER TEMPS ALOFT WILL HOLD IN
PLACE LONGEST ACROSS THE NORTH COUNTY SO BETTER CHANCES FOR P-TYPE
TO START AS SNOW THEN TRANSITION TO A BRIEF MIX BEFORE GOING OVER TO
ALL LIQUID. QPF IS LESS THAN A TENTH SO NO SIGNIFICANT ACCUMULATIONS
OF EXPECTED.

TEMPERATURES WILL REMAIN WELL BELOW NORMAL FRIDAY AND FRIDAY NIGHT
WITH HIGHS AND LOWS MORE TYPICAL OF JANUARY THAN LATE NOVEMBER. THE
WARM ADVECTION WILL HELP PUSH TEMPERATURES AND EVENTUALLY DEWPOINTS
BACK ABOVE FREEZING SATURDAY AND CONTINUE RISING SATURDAY NIGHT
UNDER A BRISK SOUTHWEST FLOW. HIGHS SATURDAY WILL BE MID TO UPPER
30S PUSHING CLOSER TO 40 BY LATE SATURDAY NIGHT. THESE WARMING
TEMPERATURES WILL RIPEN THE SNOWPACK WITH MELTING QUICKLY TAKING
PLACE AFTER DEWPOINTS RISE ABOVE FREEZING.

&&

.LONG TERM /SUNDAY THROUGH WEDNESDAY/...
SUNDAY AND MONDAY A COMPLEX AREA OF LOW PRESSURE WILL LIFT THROUGH
THE WESTERN GREAT LAKES AS A MID LEVEL TROUGH DIGS INTO THE NORTHERN
PLAINS. THIS WILL FORCE STRONG HEIGHT RISES AND WARM ADVECTION
DOWNSTREAM ACROSS THE LOWER LAKES AND ALLOW TEMPERATURES TO SOAR...
WITH THE WARMEST DAY COMING MONDAY. TEMPERATURES WILL RISE INTO THE
MID 50S TO LOWER 60S...WITH DEWPOINTS IN THE MID 40S AND PLENTY OF
WIND. OVERNIGHT LOWS WILL ALSO BE MILD. THIS WILL SET THE STAGE FOR
A MAJOR MELTDOWN IN AREAS POUNDED BY LAKE EFFECT SNOW. LATEST MODEL
GUIDANCE DOES NOT SHOW AN EXCESSIVE AMOUNT OF RAIN...WITH THE BEST
RAIN CHANCES COMING ON SUNDAY NIGHT AS A WARM FRONTAL SEGMENT LIFTS
NORTH ACROSS THE AREA.

THE COMBINATION OF AT LEAST SOME RAIN AND MAJOR SNOWMELT WILL BRING
THE RISK FOR SIGNIFICANT FLOODING TO THE LAKE EFFECT AREAS...BOTH
FOR SMALL STREAMS AS WELL AS SOME OF THE LARGER CREEKS AND RIVERS.
THIS WOULD INCLUDE THE BUFFALO AREA CREEKS...CATTARAUGUS CREEK...
AND THE CREEKS THAT DRAIN THE TUG HILL REGION. IN URBAN SECTIONS
OF SOUTH BUFFALO PONDING/FLOODING MAY ALSO OCCUR AS THE LARGE
VOLUME OF MELT WATER OVERLOADS DRAINAGE SYSTEMS.

LOOKING INTO THE MIDDLE OF THE WEEK FOR THE IMPORTANT THANKSGIVING
HOLIDAY TRAVEL TIME PERIOD...COLDER AIR WILL FILTER BACK INTO THE
GREAT LAKES. BOTH THE GFS AND ECWMF DROP 850MB TEMPS TO -8C TO -10C
BY WEDNESDAY WITH CYCLONIC SOUTHWESTERLY FLOW...SUGGESTING THE
POTENTIAL FOR ANOTHER LAKE EFFECT EVENT. STAY TUNED.

&&

.AVIATION /15Z THURSDAY THROUGH MONDAY/...
WHILE VFR CONDITIONS WILL BE IN PLACE FOR MOST AREAS EARLY THIS
MORNING THROUGH THURSDAY NIGHT...SIGNIFICANT BANDS OF LAKE EFFECT
SNOW WILL PRODUCE AREAS OF LIFR CONDITIONS.

THE LAKE EFFECT THROUGH TODAY WILL INCLUDE A BAND THAT WILL
EXTEND FROM THE CHAUTAUQUA COUNTY SHORELINE TO THE SOUTHERN HALF
OF ERIE COUNTY TO SOUTHERN GENESEE COUNTY. WHILE VFR CONDITIONS
WILL BE IN PLACE AT KIAG...THE LAKE EFFECT WILL BE JUST SOUTH OF
KROC AND KBUF FOR THE MAJORITY OF THE TIME. THERE IS A SMALL
CHANCE THE BANDS COULD DRIFT TOWARD KBUF AGAIN LATER TODAY. KJHW
SHOULD REMAIN JUST SOUTH UNTIL LATER TONIGHT...WHILE KART WILL BE
IN AND OUT OF LAKE EFFECT BANDS THROUGHOUT THE DAY...WITH
IMPROVING CONDITIONS LATER THIS EVENING.

THE CONCERN IN THE LAKE EFFECT AREAS TODAY WILL BE ACCOMPANIED BY
SOME GUSTY WINDS REGIONWIDE. SFC WINDS COULD GUST TO 35 KNOTS...
MAINLY NEAR THE LAKES AND ACROSS THE HIGHER TERRAIN.

OUTLOOK...
FRIDAY...LAKE EFFECT SNOW LIKELY EAST AND SOUTHEAST OF THE LAKES
WITH LOCAL IFR. MAINLY VFR ELSEWHERE.
SATURDAY...VFR.
SATURDAY NIGHT THROUGH MONDAY...PERIODS OF IFR/MVFR IN RAIN AND
GROUND FOG. LLWS POSSIBLE SUNDAY NIGHT AND INTO MONDAY MORNING.

&&

.MARINE...
DEEP LOW PRESSURE PASSING BY TO THE NORTH OF THE LOWER GREAT LAKES
WILL GENERATE FAIRLY STRONG WINDS TODAY INTO TONIGHT...WITH GALE
FORCE WINDS EXPECTED ON LAKE ONTARIO AND HIGH END SMALL CRAFTS ON
THE NEARSHORE WATERS OF LAKE ERIE.

THE STRONG WINDS WILL START TO SUBSIDE TONIGHT AS HIGH PRESSURE WILL
BUILD ACROSS THE GREAT LAKES REGION AND WEAKEN THE INFLUENCING SFC
PRESSURE GRADIENT. WHILE THE AREA OF HIGH PRESSURE WILL PASS OVER
LAKES ERIE AND ONTARIO ON FRIDAY...WINDS WILL LIKELY REMAIN HIGH
ENOUGH TO WARRANT SMALL CRAFT ADVISORIES ON LAKE ONTARIO.

&&

.BUF WATCHES/WARNINGS/ADVISORIES...
NY...LAKE EFFECT SNOW WARNING UNTIL 1 AM EST FRIDAY FOR NYZ010>012-
     085.
     LAKE EFFECT SNOW WARNING UNTIL NOON EST FRIDAY FOR NYZ007-008-
     019-020.
     LAKE EFFECT SNOW WARNING FROM 4 PM THIS AFTERNOON TO 6 PM EST
     FRIDAY FOR NYZ006.
     LAKE EFFECT SNOW ADVISORY UNTIL 7 PM EST THIS EVENING FOR
     NYZ003.
     LAKE EFFECT SNOW ADVISORY UNTIL 4 AM EST FRIDAY FOR NYZ013.
MARINE...SMALL CRAFT ADVISORY UNTIL 7 PM EST THIS EVENING FOR LEZ020.
         SMALL CRAFT ADVISORY UNTIL 8 PM EST FRIDAY FOR LEZ040-041.
         SMALL CRAFT ADVISORY UNTIL 7 PM EST THIS EVENING FOR
         LOZ030.
         GALE WARNING UNTIL 1 AM EST FRIDAY FOR LOZ043>045-063>065.
         GALE WARNING UNTIL 10 PM EST THIS EVENING FOR LOZ042-062.
         SMALL CRAFT ADVISORY UNTIL 7 PM EST THIS EVENING FOR
         SLZ022-024.

&&

SYNOPSIS...RSH
NEAR TERM...HITCHCOCK/RSH/ZAFF
SHORT TERM...SMITH
LONG TERM...HITCHCOCK
AVIATION...RSH/ZAFF
MARINE...RSH
Hazardous weather outlook, Nov 20, 5:58 AM EST, 5 hours 23 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BUFFALO NY
558 AM EST THU NOV 20 2014

NYZ007-008-211100-
JEFFERSON-LEWIS-
558 AM EST THU NOV 20 2014

...LAKE EFFECT SNOW WARNING IN EFFECT UNTIL NOON EST FRIDAY...

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 WARNING.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.

PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE
INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS.

   LAKE EFFECT SNOW WARNING.

A WARM-UP AND SOME RAINFALL SUNDAY AND MONDAY WILL RESULT IN
SIGNIFICANT SNOWMELT IN AREAS WHICH RECEIVED HEAVY LAKE EFFECT
SNOW. THIS MAY RESULT IN SIGNIFICANT FLOODING OF SMALL STREAMS AND
CREEKS AS WELL AS LARGER STEM RIVERS AND URBAN AREAS WILL POOR DRAINAGE.

.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

NYZ006-211100-
OSWEGO-
558 AM EST THU NOV 20 2014

...LAKE EFFECT SNOW WARNING IN EFFECT FROM 4 PM THIS AFTERNOON TO
6 PM EST FRIDAY...

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 WARNING.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.

PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE
INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS.

   LAKE EFFECT SNOW WARNING.

A WARM-UP AND SOME RAINFALL SUNDAY AND MONDAY WILL RESULT IN
SIGNIFICANT SNOWMELT IN AREAS WHICH RECEIVED HEAVY LAKE EFFECT
SNOW. THIS MAY RESULT IN SIGNIFICANT FLOODING OF SMALL STREAMS AND
CREEKS AS WELL AS LARGER STEM RIVERS AND URBAN AREAS WILL POOR DRAINAGE.

.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

NYZ001-002-004-005-014-021-211100-
NIAGARA-ORLEANS-WAYNE-NORTHERN CAYUGA-ONTARIO-ALLEGANY-
558 AM EST THU NOV 20 2014

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

.DAY ONE...TODAY AND TONIGHT.

THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.

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

NYZ003-211100-
MONROE-
558 AM EST THU NOV 20 2014

...LAKE EFFECT SNOW ADVISORY IN EFFECT UNTIL 7 PM EST THIS EVENING...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF WESTERN 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...FRIDAY THROUGH WEDNESDAY.

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

NYZ019-020-211100-
CHAUTAUQUA-CATTARAUGUS-
558 AM EST THU NOV 20 2014

...LAKE EFFECT SNOW WARNING IN EFFECT UNTIL NOON EST FRIDAY...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF WESTERN 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 WARNING.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.

PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE
INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS.

   LAKE EFFECT SNOW WARNING.

A WARM-UP AND SOME RAINFALL SUNDAY AND MONDAY WILL RESULT IN
SIGNIFICANT SNOWMELT IN AREAS WHICH RECEIVED HEAVY LAKE EFFECT
SNOW. THIS MAY RESULT IN SIGNIFICANT FLOODING OF SMALL STREAMS AND
CREEKS AS WELL AS LARGER STEM RIVERS AND URBAN AREAS WILL POOR DRAINAGE.

.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>012-085-211100-
NORTHERN ERIE-GENESEE-WYOMING-SOUTHERN ERIE-
558 AM EST THU NOV 20 2014

...LAKE EFFECT SNOW WARNING IN EFFECT UNTIL 1 AM EST FRIDAY...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF WESTERN 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 WARNING.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.

A WARM-UP AND SOME RAINFALL SUNDAY AND MONDAY WILL RESULT IN
SIGNIFICANT SNOWMELT IN AREAS WHICH RECEIVED HEAVY LAKE EFFECT
SNOW. THIS MAY RESULT IN SIGNIFICANT FLOODING OF SMALL STREAMS AND
CREEKS AS WELL AS LARGER STEM RIVERS AND URBAN AREAS WILL POOR DRAINAGE.

.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

NYZ013-211100-
LIVINGSTON-
558 AM EST THU NOV 20 2014

...LAKE EFFECT SNOW ADVISORY IN EFFECT UNTIL 4 AM EST FRIDAY...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF WESTERN 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...FRIDAY THROUGH WEDNESDAY.

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

LEZ020-040-041-SLZ022-024-211100-
UPPER NIAGARA RIVER AND BUFFALO HARBOR-
LAKE ERIE NEARSHORE WATERS FROM RIPLEY TO DUNKIRK-
LAKE ERIE NEARSHORE WATERS FROM DUNKIRK TO BUFFALO-
SAINT LAWRENCE RIVER FROM CAPE VINCENT TO OGDENSBURG-
SAINT LAWRENCE RIVER FROM OGDENSBURG TO SAINT REGIS-
558 AM EST THU NOV 20 2014

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

.DAY ONE...TODAY AND TONIGHT.

THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.

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

LOZ043>045-063>065-211100-
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 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-
558 AM EST THU NOV 20 2014

...GALE WARNING IN EFFECT UNTIL 1 AM EST FRIDAY...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF LAKE ONTARIO.

.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.

   GALE WARNING.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.

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

LOZ042-062-211100-
LAKE ONTARIO NEARSHORE WATERS FROM THE NIAGARA RIVER TO HAMLIN BEACH-
LAKE ONTARIO OPEN WATERS FROM THE NIAGARA RIVER TO HAMLIN BEACH-
558 AM EST THU NOV 20 2014

...GALE WARNING IN EFFECT UNTIL 10 PM EST THIS EVENING...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF LAKE ONTARIO.

.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.

   GALE WARNING.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.

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

SMITH

In the hours before

Special weather statement, Nov 20, 5:28 AM EST, 5 hours 53 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
528 AM EST THU NOV 20 2014

NYZ002-010>012-019-020-085-201145-
CATTARAUGUS NY-CHAUTAUQUA NY-ERIE NY-GENESEE NY-ORLEANS NY-WYOMING
NY-
528 AM EST THU NOV 20 2014

...LAKE EFFECT SNOW WILL CONTINUE TO IMPACT AREAS EAST AND SOUTHEAST
OF THE BUFFALO METRO AREA...THE HARD HIT SOUTHTOWNS...THE LAKE ERIE
SHORELINE PARTS OF GENESEE AND WYOMING COUNTIES....

* AT 525 AM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LAKE EFFECT SNOW BAND CAPABLE OF PRODUCING SNOWFALL RATES OF 3
  INCHES PER HOUR OR MORE...AND VISIBILITY NEAR ZERO AT TIMES.
  THIS LAKE EFFECT SNOW BAND WAS LOCATED ALONG THE
  SHORELINE...ACROSS THE SOUTHTOWNS..AND INTO GENESEE COUNTY.

* SOME LOCATIONS AFFECTED BY THE LAKE EFFECT SNOW BAND INCLUDE...
  ANGOLA ON THE LAKE AND EVANS...
  DERBY AND NORTH COLLINS...
  NORTH BOSTON AND EDEN...
  HAMBURG...ORCHARD PARK...ELMA...AND EAST AURORA...
  LACKAWANNA...WEST SENECA...LANCASTER...ALDEN AND MARILLA...
  BATAVIA...DARIEN...AND CORFU...
  BENNINGTON AND ATTICA...
THIS INCLUDES THE NEW YORK THRUWAY BETWEEN EXITS 48 AND 60.

* LIGHTNING AND A FEW RUMBLES OF THUNDER WILL BE POSSIBLE.

TRAVEL ACROSS THE AREA WILL BE EXTREMELY DIFFICULT OR EVEN IMPOSSIBLE
DUE TO THE VERY HEAVY SNOWFALL PRODUCING NEAR ZERO VISIBILITY AND
DEEP SNOW COVER ON ROADWAYS. TRAVEL IS NOT RECOMMENDED.

IF YOU MUST TRAVEL...BE PREPARED BY HAVING AN EMERGENCY KIT...EXTRA
BLANKETS AND WARM CLOTHING IN THE EVENT THAT YOUR VEHICLE HAS
MECHANICAL PROBLEMS OR GETS STUCK. MAKE SURE YOU HAVE A FULLY CHARGED
CELL PHONE.

LAT...LON 4229 7975 4242 7946 4250 7936 4256 7916
      4270 7905 4271 7899 4278 7886 4285 7887
      4292 7867 4315 7817 4274 7797 4226 7976

ZAFF
Special weather statement, Nov 20, 7:04 AM EST, 4 hours 17 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
704 AM EST THU NOV 20 2014

NYZ010>012-019>021-085-201330-
ALLEGANY NY-CATTARAUGUS NY-CHAUTAUQUA NY-ERIE NY-GENESEE NY-WYOMING
NY-
704 AM EST THU NOV 20 2014

...LAKE EFFECT SNOW WILL CONTINUE TO IMPACT THE BUFFALO SOUTHTOWNS
AND LAKE ERIE SHORELINE EAST INTO THE HIGHER TERRAIN OF WESTERN NY...

* AT 705 AM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LAKE EFFECT SNOW BAND CAPABLE OF PRODUCING SNOWFALL RATES OF 3
  INCHES PER HOUR OR MORE...AND VISIBILITY NEAR ZERO AT TIMES. THIS
  LAKE EFFECT SNOW BAND WAS LOCATED ALONG THE LAKE ERIE SHORELINE OF
  CHAUTAUQUA COUNTY NORTHEAST ACROSS THE BOSTON HILLS AND
  SOUTHTOWNS...INTO MUCH OF WYOMING COUNTY.

* SOME LOCATIONS AFFECTED BY THE LAKE EFFECT SNOW BAND INCLUDE...
  BOSTON AND WEST FALLS...
  COLDEN...WALES...EAST AURORA...
  CONCORD AND BENNINGTON AND ATTICA...
  VARYSBURG...MARILLA...
  WARSAW...

THIS INCLUDES THE NEW YORK THRUWAY BETWEEN EXITS 56 AND 61.

* LIGHTNING AND A FEW RUMBLES OF THUNDER WILL BE POSSIBLE.

TRAVEL ACROSS THE AREA WILL BE EXTREMELY DIFFICULT OR EVEN IMPOSSIBLE
DUE TO THE VERY HEAVY SNOWFALL PRODUCING NEAR ZERO VISIBILITY AND
DEEP SNOW COVER ON ROADWAYS. TRAVEL IS NOT RECOMMENDED.

IF YOU MUST TRAVEL...BE PREPARED BY HAVING AN EMERGENCY KIT...EXTRA
BLANKETS AND WARM CLOTHING IN THE EVENT THAT YOUR VEHICLE HAS
MECHANICAL PROBLEMS OR GETS STUCK. MAKE SURE YOU HAVE A FULLY CHARGED
CELL PHONE.

LAT...LON 4229 7975 4242 7946 4250 7936 4256 7916
      4270 7906 4274 7892 4278 7886 4280 7886
      4300 7803 4251 7817 4223 7977

ZAFF
Special weather statement, Nov 20, 7:12 AM EST, 4 hours 9 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
712 AM EST THU NOV 20 2014

NYZ006>008-201330-
JEFFERSON NY-LEWIS NY-OSWEGO NY-
712 AM EST THU NOV 20 2014

...LAKE EFFECT SNOW WILL CONTINUE TO IMPACT AREAS EAST OF LAKE
ONTARIO...

* AT 710 AM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  MULTIPLE LAKE EFFECT SNOW BANDS CAPABLE OF PRODUCING SNOWFALL RATES
  OF 1 TO 3 INCHES PER HOUR...AND VISIBILITY NEAR ZERO AT TIMES.
  THERE ARE TWO SEPARATE BANDS OF SNOW...ONE NORTH OF WATERTOWN AND
  ANOTHER SOUTH.

* SOME LOCATIONS AFFECTED BY THE LAKE EFFECT SNOW IN THE NORTHERN
BAND INCLUDE...
  CHAUMONT...
  THERESA...
  ALEXANDRIA BAY...

* SOME LOCATIONS AFFECTED BY THE LAKE EFFECT SNOW IN THE SOUTHERN
BAND INCLUDE...
  ADAMS...
  LORRAINE...
  WORTH...
  BARNES CORNERS...
  CARTHAGE...

THIS INCLUDES INTERSTATE 81 BETWEEN EXITS 37 AND 52.

TRAVEL ACROSS THE AREA WILL BE EXTREMELY DIFFICULT OR EVEN IMPOSSIBLE
DUE TO THE VERY HEAVY SNOWFALL PRODUCING NEAR ZERO VISIBILITY AND
DEEP SNOW COVER ON ROADWAYS. TRAVEL IS NOT RECOMMENDED.

IF YOU MUST TRAVEL...BE PREPARED BY HAVING AN EMERGENCY KIT...EXTRA
BLANKETS AND WARM CLOTHING IN THE EVENT THAT YOUR VEHICLE HAS
MECHANICAL PROBLEMS OR GETS STUCK. MAKE SURE YOU HAVE A FULLY CHARGED
CELL PHONE.

LAT...LON 4420 7538 4383 7537 4360 7620 4380 7624
      4390 7637 4389 7642 4393 7642 4388 7629
      4390 7614 4392 7614 4398 7622 4396 7630
      4405 7631 4411 7638 4420 7629 4419 7624
      4424 7612 4426 7617 4430 7614 4440 7584

ZAFF
Special weather statement, Nov 20, 9:18 AM EST, 2 hours 3 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
918 AM EST THU NOV 20 2014

NYZ010>012-019>021-085-201545-
ALLEGANY NY-CATTARAUGUS NY-CHAUTAUQUA NY-ERIE NY-GENESEE NY-WYOMING
NY-
918 AM EST THU NOV 20 2014

...LAKE EFFECT SNOW WILL CONTINUE TO IMPACT THE BUFFALO SOUTHTOWNS
AND LAKE ERIE SHORELINE EAST TO THE BOSTON HILLS AND WYOMING
COUNTY...

* AT 915 AM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LAKE EFFECT SNOW BAND CAPABLE OF PRODUCING SNOWFALL RATES OF 3
  INCHES PER HOUR OR MORE...AND VISIBILITY NEAR ZERO AT TIMES. THIS
  LAKE EFFECT SNOW BAND WAS LOCATED ALONG THE LAKE ERIE SHORELINE OF
  CHAUTAUQUA COUNTY NORTHEAST ACROSS THE BOSTON HILLS AND
  SOUTHTOWNS...INTO MUCH OF WYOMING COUNTY.  THE BAND MAY MOVE A FEW
  MILES TO THE NORTH BEFORE NOON.  TOWNS INCLUDING
  HAMBURG...ORCHARD PARK...ELMA...WEST SENECA AND LANCASTER ARE
  ON THE NORTHERN EDGE OF THE BAND AND MAY SEE
  SNOW OCCASIONALLY MOVING IN AND OUT DURING THE MORNING.

* SOME LOCATIONS AFFECTED BY THE LAKE EFFECT SNOW BAND INCLUDE...
  BOSTON AND WEST FALLS...
  COLDEN...WALES...EAST AURORA...
  BENNINGTON AND ATTICA...
  VARYSBURG...HOLLAND AND MARILLA...

THIS INCLUDES THE NEW YORK THRUWAY BETWEEN EXITS 56 AND 61.

TRAVEL ACROSS THE AREA WILL BE EXTREMELY DIFFICULT OR EVEN IMPOSSIBLE
DUE TO THE VERY HEAVY SNOWFALL PRODUCING NEAR ZERO VISIBILITY AND
DEEP SNOW COVER ON ROADWAYS. TRAVEL IS NOT RECOMMENDED.

IF YOU MUST TRAVEL...BE PREPARED BY HAVING AN EMERGENCY KIT...EXTRA
BLANKETS AND WARM CLOTHING IN THE EVENT THAT YOUR VEHICLE HAS
MECHANICAL PROBLEMS OR GETS STUCK. MAKE SURE YOU HAVE A FULLY CHARGED
CELL PHONE.

LAT...LON 4229 7975 4242 7946 4250 7936 4256 7916
      4270 7906 4274 7892 4280 7886 4300 7803
      4251 7817 4223 7977

ZAFF
Special weather statement, Nov 20, 9:24 AM EST, 1 hour 57 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
924 AM EST THU NOV 20 2014

NYZ007-008-201545-
JEFFERSON NY-LEWIS NY-
924 AM EST THU NOV 20 2014

...LAKE EFFECT SNOW WILL CONTINUE TO IMPACT CENTRAL JEFFERSON COUNTY
AND FAR NORTHERN LEWIS COUNTY...

* AT 920 AM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LAKE EFFECT SNOW BAND CAPABLE OF PRODUCING SNOWFALL RATES OF 2 TO 3
  INCHES PER HOUR...AND VISIBILITY NEAR ZERO AT TIMES. THIS LAKE
  EFFECT SNOW BAND WAS LOCATED ACROSS WATERTOWN TO HARRISVILLE.
  OTHER BANDS TO THE SOUTH ARE SHOWING SIGNS OF WEAKENING
  THIS MORNING.

* SOME LOCATIONS AFFECTED BY THE LAKE EFFECT SNOW BAND
  INCLUDE...

  WATERTOWN...
  FORT DRUM...
  PHILADELPHIA...
  CARTHAGE...
  HARRISVILLE...

THIS INCLUDES INTERSTATE 81 BETWEEN EXITS 41 AND 49.

TRAVEL ACROSS THE AREA WILL BE EXTREMELY DIFFICULT OR EVEN IMPOSSIBLE
DUE TO THE VERY HEAVY SNOWFALL PRODUCING NEAR ZERO VISIBILITY AND
DEEP SNOW COVER ON ROADWAYS. TRAVEL IS NOT RECOMMENDED.

IF YOU MUST TRAVEL...BE PREPARED BY HAVING AN EMERGENCY KIT...EXTRA
BLANKETS AND WARM CLOTHING IN THE EVENT THAT YOUR VEHICLE HAS
MECHANICAL PROBLEMS OR GETS STUCK. MAKE SURE YOU HAVE A FULLY CHARGED
CELL PHONE.

LAT...LON 4416 7530 4402 7520 4374 7622 4380 7624
      4384 7631 4387 7631 4391 7622 4390 7620
      4387 7621 4390 7614 4394 7615 4398 7622
      4396 7626 4401 7616 4403 7616 4433 7568

ZAFF
Special weather statement, Nov 20, 11:21 AM EST, 0 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
1121 AM EST THU NOV 20 2014

NYZ010>012-019-020-085-201745-
CATTARAUGUS NY-CHAUTAUQUA NY-ERIE NY-GENESEE NY-WYOMING NY-
1121 AM EST THU NOV 20 2014

...LAKE EFFECT SNOW WILL CONTINUE TO IMPACT THE BUFFALO SOUTHTOWNS
AND LAKE ERIE SHORELINE EAST TO THE BOSTON HILLS AND WYOMING
COUNTY...

* AT 1111 AM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LAKE EFFECT SNOW BAND CAPABLE OF PRODUCING SNOWFALL RATES OF 3
  INCHES PER HOUR OR MORE...AND VISIBILITY NEAR ZERO AT TIMES.
  THIS LAKE EFFECT SNOW BAND WAS LOCATED ALONG THE LAKE ERIE
  SHORELINE OF CHAUTAUQUA COUNTY NORTHEAST ACROSS THE BOSTON HILLS
  AND SOUTHTOWNS...INTO MUCH OF WYOMING COUNTY.  THE BAND WILL MOVE
  ABOUT 5 MILES TO THE NORTH BEFORE NOON.  TOWNS
  INCLUDING HAMBURG...ORCHARD PARK...ELMA...WEST SENECA WILL START
  TO SEE MORE CONTINUOUS SNOWFALL WHILE THE NEXT TIER OF TOWNS WILL
  END UP ON THE NORTHERN FRINGE...INCLUDING LACKAWANNA AND LANCASTER
  AND ALDEN.

* SOME LOCATIONS IN THE HEART OF THE BAND INCLUDE...
  BOSTON AND WEST FALLS...
  COLDEN...WALES...EAST AURORA...
  BENNINGTON AND ATTICA...
  VARYSBURG...HOLLAND AND MARILLA...

THIS INCLUDES THE NEW YORK THRUWAY BETWEEN EXITS 48 AND 59.

HERE ARE SOME IMPORTANT SAFETY REMINDERS...

* DO NOT OVEREXERT YOURSELF...SHOVELING OR EVEN WALKING IN THE
  HEAVY SNOW IS EXTREMELY TAXING. TAKE PLENTY OF BREAKS TO AVOID
  OVEREXERTING YOURSELF.

* OVERSTRESSED ROOFS CAN COLLAPSE. SNOW REMOVAL OFF STRUCTURES IS
  A DANGEROUS ACTIVITY THAT SHOULD ONLY BE DONE BY QUALIFIED
  INDIVIDUALS FOLLOWING SAFETY PROTOCOLS TO MINIMIZE RISKS. IF AT
  ANY TIME THERE IS A CONCERN THAT SNOW LOADS MAY CAUSE A
  COLLAPSE...EVACUATE THE BUILDING. SIGNS OF OVERSTRESSED ROOFS
  MAY INCLUDE SAGGING TILES OR BOARDS. POPPING...CRACKING...OR
  CREAKING SOUNDS ALSO SIGNAL SIGNIFICANT DANGER.

* TRAVEL SAFETY...MANY ROADS ARE STILL IN EXTREMELY POOR CONDITION
  OR ARE IMPASSIBLE. HEED LOCAL...REGIONAL AND OTHER EMERGENCY
  TRAVEL BANS. TAKE THE TIME NOW AND PLACE A WINTER SAFETY KIT IN
  YOUR CAR. ITEMS INCLUDE BUT ARE NOT LIMITED TO...A FULLY CHARGED
  CELL PHONE...BLANKETS...FLASHLIGHT...KNIFE...NON-PERISHABLE
  FOOD...CLOTHING...AND A SHOVEL.

LAT...LON 4247 7939 4250 7936 4256 7916 4261 7913
      4265 7907 4270 7905 4271 7899 4278 7886
      4287 7889 4305 7806 4258 7821 4243 7943
      4246 7943

ZAFF

The office that day

Everything else NWS Buffalo, NY issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Nov 20, 3:54 AM ESTSpecial Weather StatementBUFGenesee51 min
Nov 20, 5:28 AM ESTSpecial Weather StatementBUFErie, Genesee, Wyoming77 min
Nov 20, 7:04 AM ESTSpecial Weather StatementBUFChautauqua, Erie, Wyoming86 min
Nov 20, 7:12 AM ESTSpecial Weather StatementBUFJefferson78 min
Nov 20, 9:18 AM ESTSpecial Weather StatementBUFChautauqua, Erie, Wyoming87 min
Nov 20, 9:24 AM ESTSpecial Weather StatementBUFJefferson81 min
Nov 20, 11:27 AM ESTSpecial Weather StatementBUFJefferson63 min
Nov 20, 11:28 AM ESTSpecial Weather StatementBUFJefferson92 min
Nov 20, 12:51 PM ESTSpecial Weather StatementBUFErie, Genesee, Wyoming84 min
Nov 20, 12:56 PM ESTSpecial Weather StatementBUFJefferson94 min
Nov 20, 1:02 PM ESTSpecial Weather StatementBUFJefferson88 min
Nov 20, 1:05 PM ESTSpecial Weather StatementBUFJefferson55 min
Nov 20, 2:31 PM ESTSpecial Weather StatementBUFErie, Genesee, Wyoming89 min
Nov 20, 2:38 PM ESTSpecial Weather StatementBUFLewis82 min
Nov 20, 3:58 PM ESTSpecial Weather StatementBUFChautauqua, Erie, Genesee, Wyoming92 min
Nov 20, 4:03 PM ESTSpecial Weather StatementBUFLewis72 min
Nov 20, 5:36 PM ESTSpecial Weather StatementBUFChautauqua, Erie, Wyoming84 min
Nov 20, 5:41 PM ESTSpecial Weather StatementBUFLewis, Oswego94 min

Nearby

Special Weather Statements in New York, 2014Every special weather statement in 2014

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.