Alert archive / New York / Ice Storm Warnings in 2012

Ice Storm Warning 1, NWS Buffalo, NY

January 12, 2012Jefferson County, New York

NWS Buffalo, NY issued this ice storm warning at Jan 12, 2012, 10:04 AM EST for Jefferson County, New York. It was in force for 6 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
Jan 12, 2012, 10:04 AM EST (15:04 UTC)
Expired
Jan 12, 2012, 4:00 PM EST
In force
6 hr
Issued by
NWS Buffalo, NY

County Jefferson County, NY

The radar

The Ft Drum radar (KTYX), 40 km from the middle of the area, began a volume at 15:07 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

Albany, NY (KALY), launched 12:00Z, 3.1 hours before the alert went out and 231 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, Albany, NY at 12:00Z on 2012-01-12Temperature 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°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Albany, NY at 12:00Z on 2012-01-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 222 square meters per square second.1939587897Sfc1 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
463 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
222 m²/s²
0-3 km storm-relative helicity
616 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.

656 
WWUS41 KBUF 121504
WSWBUF

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE BUFFALO NY
1004 AM EST THU JAN 12 2012

NYZ007-122315-
/O.UPG.KBUF.WW.Y.0001.000000T0000Z-120114T0000Z/
/O.NEW.KBUF.IS.W.0001.120112T1504Z-120112T2100Z/
/O.EXA.KBUF.WW.Y.0002.120113T0900Z-120114T0000Z/
JEFFERSON-
INCLUDING THE CITY OF...WATERTOWN
1004 AM EST THU JAN 12 2012

...ICE STORM WARNING IN EFFECT UNTIL 4 PM EST THIS AFTERNOON...
...WINTER WEATHER ADVISORY IN EFFECT FROM 4 AM TO 7 PM EST
FRIDAY...

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED AN ICE STORM
WARNING...WHICH IS IN EFFECT UNTIL 4 PM EST THIS AFTERNOON. A
WINTER WEATHER ADVISORY HAS ALSO BEEN ISSUED. THIS WINTER WEATHER
ADVISORY FOR SNOW...SLEET...AND FREEZING RAIN IS IN EFFECT FROM
4 AM TO 7 PM EST FRIDAY. THE WINTER WEATHER ADVISORY IS NO LONGER
IN EFFECT. 

* LOCATIONS...JEFFERSON COUNTY.

* TIMING...THROUGH EARLY FRIDAY EVENING.

* HAZARDS...SNOW...SLEET...AND FREEZING RAIN.

* ACCUMULATIONS...ICE ACCUMULATIONS OF A HALF INCH OR MORE. SNOW
  ACCUMULATING AN INCH OR LESS THROUGH TONIGHT... AND 3 TO 5
  INCHES FRIDAY.

* WINDS...SOUTHEAST 15 TO 25 MPH.

* IMPACTS...FREEZING RAIN OVER NORTHERN SECTIONS WILL RESULT IN
  UNTREATED ROADS AND SIDEWALKS BECOMING ICE COVERED AND VERY
  TREACHEROUS...ESPECIALLY ALONG THE SAINT LAWRENCE RIVER. THERE
  COULD BE SCATTERED POWER OUTAGES IN THE THOUSAND ISLANDS AREA.
  SNOW TONIGHT AND FRIDAY WILL RESULT IN CONTINUED SLICK ROADWAYS
  AND SIDEWALKS. THE ADDITION OF SNOWFALL ON TOP OF ANY ICE
  ACCUMULATION WILL INCREASE THE HAZARD.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

AN ICE STORM WARNING IS ISSUED WHEN A HEAVY ACCUMULATION OF ICE
WILL CAUSE HAZARDOUS IF NOT IMPOSSIBLE DRIVING CONDITIONS. YOU
SHOULD CONSIDER POSTPONING ANY TRAVEL. IF DRIVING IS UNAVOIDABLE,
USE EXTREME CAUTION, AND CARRY A WINTER EMERGENCY KIT IN CASE YOU
ARE STRANDED. ROADS MAY BECOME BLOCKED BY DOWNED TREES AND POWER
LINES.

A WINTER WEATHER ADVISORY IS NORMALLY ISSUED FOR A VARIETY OF
WINTER WEATHER CONDITIONS SUCH AS LIGHT SNOW, BLOWING SNOW,
SLEET, FREEZING RAIN AND WIND CHILLS. WHILE THE WEATHER WILL BE
SIGNIFICANT, THE WORD ADVISORY IMPLIES THAT SEVERE WINTER WEATHER
IS NOT ANTICIPATED.

IF YOU LOSE POWER AND PLAN ON RUNNING A GENERATOR...MAKE SURE
THAT THE GENERATOR IS LOCATED OUTDOORS AND IS PROPERLY
VENTILATED. SPACE HEATERS SHOULD ALSO BE PROPERLY VENTILATED AND
USED ONLY IF THEY ARE OPERATING PROPERLY. MAKE SURE SNOW DOES NOT
BLOCK EXHAUSTS AND FRESH AIR INTAKES FOR HIGH EFFICIENCY FURNACES
AND WATER HEATERS.

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.

&&

$$

NYZ008-122315-
/O.CON.KBUF.WW.Y.0001.000000T0000Z-120114T0000Z/
LEWIS-
INCLUDING THE CITY OF...LOWVILLE
1004 AM EST THU JAN 12 2012

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 PM EST
FRIDAY...

* LOCATIONS...LEWIS COUNTY.

* TIMING...THROUGH EARLY FRIDAY EVENING.

* HAZARDS...SNOW AND FREEZING RAIN.

* ACCUMULATIONS...SNOW ACCUMULATING AN INCH OR LESS TODAY...AN 
  INCH OR LESS TONIGHT...3 TO 5 INCHES FRIDAY...AND AN INCH OR 
  LESS FRIDAY EVENING. ICE ACCUMULATING UP TO ONE QUARTER OF AN 
  INCH TODAY AND LESS THAN ONE TENTH OF AN INCH TONIGHT.

* WINDS...SOUTH 15 TO 25 MPH.

* IMPACTS...FREEZING RAIN OVER NORTHERN SECTIONS TODAY WILL 
  RESULT IN UNTREATED ROADS AND SIDEWALKS BECOMING ICY AND 
  TREACHEROUS. THERE COULD BE SOME SPOTTY POWER OUTAGES IN THE 
  THOUSAND ISLANDS AREA. SNOW LATER TONIGHT AND FRIDAY WILL 
  RESULT IN CONTINUED SLICK ROADWAYS AND SIDEWALKS. THE ADDITION 
  OF SNOWFALL ON TOP OF ANY ICE ACCUMULATION WILL INCREASE THE 
  HAZARD. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY IS NORMALLY ISSUED FOR A VARIETY OF
WINTER WEATHER CONDITIONS SUCH AS LIGHT SNOW...SLEET...FREEZING
RAIN. WHILE THE WEATHER WILL BE SIGNIFICANT...THE WORD ADVISORY
IMPLIES THAT SEVERE WINTER WEATHER IS NOT ANTICIPATED.

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.

&&

$$

NYZ001-002-010>012-019>021-085-122315-
/O.CON.KBUF.WW.Y.0002.120113T0900Z-120114T0000Z/
NIAGARA-ORLEANS-NORTHERN ERIE-GENESEE-WYOMING-CHAUTAUQUA-
CATTARAUGUS-ALLEGANY-SOUTHERN ERIE-
INCLUDING THE CITIES OF...NIAGARA FALLS...MEDINA...BUFFALO...
BATAVIA...WARSAW...JAMESTOWN...OLEAN...WELLSVILLE...
ORCHARD PARK...SPRINGVILLE
1004 AM EST THU JAN 12 2012

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 4 AM TO 7 PM
EST FRIDAY...

* LOCATIONS...ALL OF THE NIAGARA FRONTIER AND WESTERN SOUTHERN 
  TIER. 

* TIMING...LATE THURSDAY NIGHT THROUGH EARLY FRIDAY EVENING.

* HAZARDS...SNOW.

* ACCUMULATIONS...AN INCH OR LESS OVERNIGHT...3 TO 5 INCHES 
  FRIDAY...AND AN INCH OR LESS FRIDAY EVENING...LEADING TO STORM 
  TOTALS OF 3 TO 6 INCHES.

* WINDS...WEST 25 TO 35 MPH.

* VISIBILITIES....

* TEMPERATURES...IN THE LOWER 30S OVERNIGHT. HIGHS AROUND 30 
  FRIDAY. IN THE MID 20S FRIDAY EVENING.

* IMPACTS...SNOW AND POSSIBLY BLOWING SNOW WILL RESULT IN 
  UNTREATED ROADWAYS BECOMING SLICK WITH LOCALLY HAZARDOUS 
  DRIVING CONDITIONS. IN ADDITION UNTREATED WALKWAYS WILL BECOME 
  VERY SLIPPERY. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY IS NORMALLY ISSUED FOR A VARIETY OF
WINTER WEATHER CONDITIONS SUCH AS LIGHT SNOW...BLOWING SNOW...
SLEET...FREEZING RAIN AND WIND CHILLS. WHILE THE WEATHER WILL BE
SIGNIFICANT...THE WORD ADVISORY IMPLIES THAT SEVERE WINTER
WEATHER IS NOT ANTICIPATED.

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.

&&

$$

NYZ003>006-013-014-122315-
/O.CON.KBUF.WW.Y.0002.120113T1200Z-120114T0000Z/
MONROE-WAYNE-NORTHERN CAYUGA-OSWEGO-LIVINGSTON-ONTARIO-
INCLUDING THE CITIES OF...ROCHESTER...NEWARK...FAIR HAVEN...
OSWEGO...GENESEO...CANANDAIGUA
1004 AM EST THU JAN 12 2012

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 7 AM TO 7 PM
EST FRIDAY...

* LOCATIONS...THE FINGER LAKES REGION.

* TIMING...EARLY FRIDAY MORNING THROUGH EARLY FRIDAY EVENING.

* HAZARDS...SNOW.

* ACCUMULATIONS...3 TO 5 INCHES FRIDAY AND AN INCH OR LESS 
  FRIDAY EVENING...LEADING TO STORM TOTALS OF 3 TO 5 INCHES.

* WINDS...WEST 20 TO 30 MPH.

* IMPACTS...SNOW AND POSSIBLY BLOWING SNOW WILL RESULT IN 
  UNTREATED ROADWAYS BECOMING SLICK WITH LOCALLY HAZARDOUS 
  DRIVING CONDITIONS. IN ADDITION UNTREATED WALKWAYS WILL BECOME 
  VERY SLIPPERY. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY IS NORMALLY ISSUED FOR A VARIETY OF
WINTER WEATHER CONDITIONS SUCH AS LIGHT SNOW...BLOWING SNOW...
SLEET...FREEZING RAIN AND WIND CHILLS. WHILE THE WEATHER WILL BE
SIGNIFICANT...THE WORD ADVISORY IMPLIES THAT SEVERE WINTER
WEATHER IS NOT ANTICIPATED.

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
1 follow-up statement
783 
WWUS41 KBUF 122100
WSWBUF

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE BUFFALO NY
400 PM EST THU JAN 12 2012

NYZ007-130500-
/O.CAN.KBUF.IS.W.0001.000000T0000Z-120112T2100Z/
/O.NEW.KBUF.LE.A.0002.120113T2100Z-120114T2300Z/
/O.EXT.KBUF.WW.Y.0002.120112T2100Z-120113T2100Z/
JEFFERSON-
INCLUDING THE CITY OF...WATERTOWN
400 PM EST THU JAN 12 2012

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 4 PM EST FRIDAY...
...LAKE EFFECT SNOW WATCH IN EFFECT FROM FRIDAY AFTERNOON THROUGH
SATURDAY AFTERNOON...
...ICE STORM WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS REPLACED AN ICE STORM
WARNING WITH A WINTER WEATHER ADVISORY THROUGH FRIDAY
AFTERNOON...AND ISSUED A LAKE EFFECT SNOW WATCH FRIDAY AFTERNOON
THROUGH SATURDAY AFTERNOON.

* LOCATIONS...JEFFERSON COUNTY.

* TIMING...THROUGH EARLY SATURDAY EVENING.

* HAZARDS...FREEZING RAIN...MAINLY NEAR THE ST LAWRENCE VALLEY
  THIS EVENING. SOME FREEZING DRIZZLE OVERNIGHT.  SNOW
  FRIDAY...WITH BLOWING SNOW BY AFTERNOON...AND LAKE EFFECT SNOW
  FRIDAY AFTERNOON THROUGH SATURDAY.

* ACCUMULATIONS...ICE ACCUMULATION LESS THAN A TENTH OF AN INCH. SNOW
  ACCUMULATING 4-8 INCHES ON FRIDAY...WITH ADDITIONAL HEAVY LAKE
  EFFECT SNOW FRIDAY NIGHT THROUGH SATURDAY TOWARD THE TUG HILL
  PLATEAU.

* WINDS...NORTHWEST 15 TO 25 MPH. GUSTS TO 40 MPH FRIDAY
  AFTERNOON.

* VISIBILITIES....NEARING ZERO AT TIMES BY FRIDAY AFTERNOON IN
  SNOW AND BLOWING SNOW.

* IMPACTS...FREEZING RAIN OVER NORTHERN SECTIONS WILL RESULT IN
  UNTREATED ROADS AND SIDEWALKS BECOMING ICE COVERED AND VERY
  TREACHEROUS...ESPECIALLY ALONG THE SAINT LAWRENCE RIVER. THERE
  COULD BE SCATTERED POWER OUTAGES IN THE THOUSAND ISLANDS AREA.
  SNOW FRIDAY WILL RESULT IN CONTINUED SLICK ROADWAYS AND
  SIDEWALKS. THE ADDITION OF SNOWFALL ON TOP OF ANY ICE
  ACCUMULATION WILL INCREASE THE HAZARD. BLOWING SNOW MAY CREATE
  SOME WHITEOUT CONDITIONS FRIDAY AND FRIDAY NIGHT.  

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY IS NORMALLY ISSUED FOR A VARIETY OF
WINTER WEATHER CONDITIONS SUCH AS LIGHT SNOW...BLOWING SNOW...
SLEET...FREEZING RAIN AND WIND CHILLS. WHILE THE WEATHER WILL BE
SIGNIFICANT...THE WORD ADVISORY IMPLIES THAT SEVERE WINTER WEATHER
IS NOT ANTICIPATED.

A LAKE EFFECT SNOW WATCH MEANS THAT SIGNIFICANT WINTER WEATHER IS
POSSIBLE IN LOCALIZED AREAS WITHIN THE NEXT 36 HOURS.

IF YOU LOSE POWER AND PLAN ON RUNNING A GENERATOR...MAKE SURE
THAT THE GENERATOR IS LOCATED OUTDOORS AND IS PROPERLY
VENTILATED. SPACE HEATERS SHOULD ALSO BE PROPERLY VENTILATED AND
USED ONLY IF THEY ARE OPERATING PROPERLY. MAKE SURE SNOW DOES NOT
BLOCK EXHAUSTS AND FRESH AIR INTAKES FOR HIGH EFFICIENCY FURNACES
AND WATER HEATERS.

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.

&&

$$

NYZ008-130500-
/O.NEW.KBUF.LE.A.0002.120113T2100Z-120114T2300Z/
/O.EXT.KBUF.WW.Y.0001.000000T0000Z-120113T2100Z/
LEWIS-
INCLUDING THE CITY OF...LOWVILLE
400 PM EST THU JAN 12 2012

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 4 PM EST FRIDAY...
...LAKE EFFECT SNOW WATCH IN EFFECT FROM FRIDAY AFTERNOON THROUGH
SATURDAY AFTERNOON...

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS CONTINUED A WINTER
WEATHER ADVISORY THROUGH FRIDAY AFTERNOON...AND ISSUED A LAKE
EFFECT SNOW WATCH FRIDAY AFTERNOON THROUGH SATURDAY AFTERNOON.

* LOCATIONS...LEWIS COUNTY.

* TIMING...THROUGH SATURDAY.

* HAZARDS...SOME FREEZING RAIN OR DRIZZLE TONIGHT.  SNOW AND
  BLOWING SNOW FRIDAY...WITH HEAVY LAKE EFFECT SNOW FRIDAY NIGHT
  THROUGH SATURDAY.

* ACCUMULATIONS...ICE ACCUMULATION LESS THAN A TENTH OF AN INCH
  TONIGHT. SNOW ACCUMULATING AN INCH OR LESS TONIGHT...4 TO 8
  INCHES FRIDAY. ADDITIONAL HEAVY SNOW POSSIBLE FRIDAY NIGHT
  THROUGH SATURDAY OVER THE TUG HILL PLATEAU.

* WINDS...WEST 15 TO 25 MPH. GUSTS TO 40 MPH FRIDAY AFTERNOON.

* VISIBILITIES....NEARING ZERO AT TIMES BY FRIDAY AFTERNOON IN
  SNOW AND BLOWING SNOW.

* IMPACTS...FREEZING RAIN OR DRIZZLE ON ROADWAYS. SIGNIFICANT SNOW
  AND BLOWING SNOW FRIDAY THROUGH SATURDAY WILL CONTINUE TO MAKE
  TRAVEL HAZARDOUS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY IS NORMALLY ISSUED FOR A VARIETY OF
WINTER WEATHER CONDITIONS SUCH AS LIGHT SNOW...SLEET...FREEZING
RAIN. WHILE THE WEATHER WILL BE SIGNIFICANT...THE WORD ADVISORY
IMPLIES THAT SEVERE WINTER WEATHER IS NOT ANTICIPATED.

A LAKE EFFECT SNOW WATCH MEANS THAT SIGNIFICANT WINTER WEATHER IS
POSSIBLE IN LOCALIZED AREAS WITHIN THE NEXT 36 HOURS.

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.

&&

$$

NYZ012-019-020-085-130500-
/O.NEW.KBUF.LE.A.0002.120113T2100Z-120114T2300Z/
/O.EXT.KBUF.WW.Y.0002.120113T0600Z-120113T2100Z/
WYOMING-CHAUTAUQUA-CATTARAUGUS-SOUTHERN ERIE-
INCLUDING THE CITIES OF...WARSAW...JAMESTOWN...OLEAN...
ORCHARD PARK...SPRINGVILLE
400 PM EST THU JAN 12 2012

...WINTER WEATHER ADVISORY NOW IN EFFECT FROM 1 AM TO 4 PM EST
FRIDAY...
...LAKE EFFECT SNOW WATCH IN EFFECT FROM FRIDAY AFTERNOON THROUGH
SATURDAY AFTERNOON...

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS CONTINUED A WINTER
WEATHER ADVISORY FOR LATE TONIGHT THROUGH FRIDAY AFTERNOON...AND
ISSUED A LAKE EFFECT SNOW WATCH FRIDAY AFTERNOON THROUGH SATURDAY
AFTERNOON.

* LOCATIONS...WYOMING AND SOUTHERN ERIE COUNTIES...AND THE WESTERN
  SOUTHERN TIER. 

* TIMING...RAIN WILL MOVE INTO THE REGION AND CHANGE OVER TO SNOW
  OVER ALL OF WESTERN NY LATE TONIGHT. SNOW WILL CONTINUE...WITH
  BLOWING SNOW BY FRIDAY AFTERNOON. WIDESPREAD SNOW WILL TAPER OFF
  LATER FRIDAY AFTERNOON WITH LAKE EFFECT TAKING HOLD OVER THE
  HIGHER TERRAIN SOUTH OF BUFFALO TO THE PENNSYLVANIA BORDER
  FRIDAY AFTERNOON THROUGH SATURDAY.

* HAZARDS...SNOW LATE TONIGHT...WITH SNOW AND BLOWING SNOW ON
  FRIDAY...AND HEAVY LAKE EFFECT SNOW FRIDAY AFTERNOON THROUGH
  SATURDAY.

* ACCUMULATIONS...UP TO 2 INCHES OVERNIGHT...3 TO 5 INCHES FRIDAY.
  HEAVY LAKE EFFECT SNOW FRIDAY NIGHT THROUGH SATURDAY. 

* WINDS...WEST 25 TO 35 MPH. GUSTS TO 40 MPH BY FRIDAY AFTERNOON.

* VISIBILITIES....NEARING ZERO AT TIMES BY FRIDAY AFTERNOON IN
  SNOW AND BLOWING SNOW.

* IMPACTS...SNOW AND POSSIBLY BLOWING SNOW WILL RESULT IN HAZARDOUS
  DRIVING CONDITIONS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY IS NORMALLY ISSUED FOR A VARIETY OF
WINTER WEATHER CONDITIONS SUCH AS LIGHT SNOW...BLOWING SNOW...
SLEET...FREEZING RAIN AND WIND CHILLS. WHILE THE WEATHER WILL BE
SIGNIFICANT...THE WORD ADVISORY IMPLIES THAT SEVERE WINTER
WEATHER IS NOT ANTICIPATED.

A LAKE EFFECT SNOW WATCH MEANS THAT SIGNIFICANT WINTER WEATHER IS
POSSIBLE IN LOCALIZED AREAS WITHIN THE NEXT 36 HOURS.

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.

&&

$$

NYZ006-130500-
/O.NEW.KBUF.LE.A.0002.120113T2100Z-120114T2300Z/
/O.EXT.KBUF.WW.Y.0002.120113T1200Z-120113T2100Z/
OSWEGO-
INCLUDING THE CITY OF...OSWEGO
400 PM EST THU JAN 12 2012

...WINTER WEATHER ADVISORY NOW IN EFFECT FROM 7 AM TO 4 PM EST
FRIDAY...
...LAKE EFFECT SNOW WATCH IN EFFECT FROM FRIDAY AFTERNOON THROUGH
SATURDAY AFTERNOON...

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS CONTINUED A WINTER
WEATHER ADVISORY FOR FRIDAY MORNING THROUGH FRIDAY
AFTERNOON...AND ISSUED A LAKE EFFECT SNOW WATCH FRIDAY AFTERNOON
THROUGH SATURDAY AFTERNOON.

* LOCATIONS...OSWEGO COUNTY.

* TIMING...EARLY FRIDAY MORNING THROUGH EARLY SATURDAY.

* HAZARDS...SNOW AND BLOWING SNOW FRIDAY...LAKE EFFECT SNOW FRIDAY
  NIGHT THROUGH SATURDAY. 

* ACCUMULATIONS...3 TO 5 INCHES FRIDAY...AND HEAVY LAKE EFFECT
  SNOW FRIDAY NIGHT THROUGH SATURDAY.

* WINDS...WEST 20 TO 30 MPH. GUSTS TO 40 MPH IN THE AFTERNOON. 

* VISIBILITIES....NEARING ZERO AT TIMES BY FRIDAY AFTERNOON IN
  SNOW AND BLOWING SNOW.

* IMPACTS...SNOW AND POSSIBLY BLOWING SNOW WILL RESULT IN HAZARDOUS
  DRIVING CONDITIONS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY IS NORMALLY ISSUED FOR A VARIETY OF
WINTER WEATHER CONDITIONS SUCH AS LIGHT SNOW...BLOWING SNOW...
SLEET...FREEZING RAIN AND WIND CHILLS. WHILE THE WEATHER WILL BE
SIGNIFICANT...THE WORD ADVISORY IMPLIES THAT SEVERE WINTER
WEATHER IS NOT ANTICIPATED.

A LAKE EFFECT SNOW WATCH MEANS THAT SIGNIFICANT WINTER WEATHER IS
POSSIBLE IN LOCALIZED AREAS WITHIN THE NEXT 36 HOURS.

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.

&&

$$

NYZ003>005-013-014-130500-
/O.EXT.KBUF.WW.Y.0002.120113T0900Z-120114T0000Z/
MONROE-WAYNE-NORTHERN CAYUGA-LIVINGSTON-ONTARIO-
INCLUDING THE CITIES OF...ROCHESTER...NEWARK...FAIR HAVEN...
GENESEO...CANANDAIGUA
400 PM EST THU JAN 12 2012

...WINTER WEATHER ADVISORY NOW IN EFFECT FROM 4 AM TO 7 PM EST
FRIDAY...

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS CONTINUED A WINTER
WEATHER ADVISORY FOR LATE TONIGHT THROUGH FRIDAY.

* LOCATIONS...GENESEE VALLEY AND FINGER LAKES REGION.

* TIMING...RAIN WILL MOVE INTO THE REGION AND CHANGE OVER TO SNOW
  OVER ALL OF WESTERN NY TONIGHT. SNOW WILL CONTINUE...WITH
  BLOWING SNOW BY FRIDAY AFTERNOON. WIDESPREAD SNOW WILL TAPER OFF
  LATER FRIDAY AFTERNOON.

* HAZARDS...SNOW LATE TONIGHT...WITH SNOW AND BLOWING SNOW ON
  FRIDAY.

* ACCUMULATIONS...AN INCH OR LESS LATE TONIGHT...3 TO 6 INCHES
  FRIDAY.

* WINDS...WEST 20 TO 30 MPH. GUSTS TO 40 IN THE AFTERNOON.

* VISIBILITIES....NEARING ZERO AT TIMES BY FRIDAY AFTERNOON IN
  SNOW AND BLOWING SNOW.

* IMPACTS...SNOW AND POSSIBLY BLOWING SNOW WILL RESULT IN
  HAZARDOUS DRIVING CONDITIONS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY IS NORMALLY ISSUED FOR A VARIETY OF
WINTER WEATHER CONDITIONS SUCH AS LIGHT SNOW...BLOWING SNOW...
SLEET...FREEZING RAIN AND WIND CHILLS. WHILE THE WEATHER WILL BE
SIGNIFICANT...THE WORD ADVISORY IMPLIES THAT SEVERE WINTER
WEATHER IS NOT ANTICIPATED.

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.

&&

$$

NYZ001-002-010-011-130500-
/O.EXT.KBUF.WW.Y.0002.120113T0600Z-120114T0000Z/
NIAGARA-ORLEANS-NORTHERN ERIE-GENESEE-
INCLUDING THE CITIES OF...NIAGARA FALLS...MEDINA...BUFFALO...
BATAVIA
400 PM EST THU JAN 12 2012

...WINTER WEATHER ADVISORY NOW IN EFFECT FROM 1 AM TO 7 PM EST
FRIDAY...

* LOCATIONS...NIAGARA FRONTIER.

* TIMING...RAIN WILL MOVE INTO THE REGION AND CHANGE OVER TO SNOW
  OVER ALL OF WESTERN NY TONIGHT. SNOW WILL CONTINUE...WITH
  BLOWING SNOW BY FRIDAY AFTERNOON. WIDESPREAD SNOW WILL TAPER OFF
  LATER FRIDAY AFTERNOON.

* HAZARDS...SNOW LATE TONIGHT...WITH SNOW AND BLOWING SNOW ON
  FRIDAY.

* ACCUMULATIONS...AN INCH SO LATE TONIGHT...2 TO 4 INCHES FRIDAY.

* WINDS...SOUTHWEST 20 TO 30 MPH. GUSTS TO 40 MPH IN THE AFTERNOON.

* VISIBILITIES....NEAR ZERO IN BLOWING SNOW.

* IMPACTS...SNOW AND POSSIBLY BLOWING SNOW WILL RESULT IN
  HAZARDOUS DRIVING CONDITIONS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY IS NORMALLY ISSUED FOR A VARIETY OF
WINTER WEATHER CONDITIONS SUCH AS LIGHT SNOW...BLOWING SNOW...
SLEET...FREEZING RAIN AND WIND CHILLS. WHILE THE WEATHER WILL BE
SIGNIFICANT...THE WORD ADVISORY IMPLIES THAT SEVERE WINTER
WEATHER IS NOT ANTICIPATED.

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.

&&

$$

NYZ021-130500-
/O.CON.KBUF.WW.Y.0002.120113T0900Z-120114T0000Z/
ALLEGANY-
INCLUDING THE CITY OF...WELLSVILLE
400 PM EST THU JAN 12 2012

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 4 AM TO 7 PM
EST FRIDAY...

* LOCATIONS...ALLEGANY COUNTY.

* TIMING...RAIN WILL MOVE INTO THE REGION AND CHANGE OVER TO SNOW
  OVER ALL OF WESTERN NY TONIGHT. SNOW WILL CONTINUE...WITH
  BLOWING SNOW BY FRIDAY AFTERNOON. WIDESPREAD SNOW WILL TAPER OFF
  LATER FRIDAY AFTERNOON...BUT WITH LAKE EFFECT CONTINUING OVER
  WESTERN PORTIONS OF THE COUNTY INTO FRIDAY EVENING.

* HAZARDS...SNOW LATE TONIGHT...WITH SNOW AND BLOWING SNOW ON FRIDAY.

* ACCUMULATIONS...UP TO 2 INCHES TONIGHT...3 TO 5 INCHES FRIDAY.

* WINDS...WEST 20 TO 30 MPH. GUST TO 40 MPH IN THE AFTERNOON. 

* VISIBILITIES....NEAR ZERO IN BLOWING SNOW.

* IMPACTS...SNOW AND POSSIBLY BLOWING SNOW WILL RESULT IN
  HAZARDOUS DRIVING CONDITIONS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY IS NORMALLY ISSUED FOR A VARIETY OF
WINTER WEATHER CONDITIONS SUCH AS LIGHT SNOW...BLOWING SNOW...
SLEET...FREEZING RAIN AND WIND CHILLS. WHILE THE WEATHER WILL BE
SIGNIFICANT...THE WORD ADVISORY IMPLIES THAT SEVERE WINTER
WEATHER IS NOT ANTICIPATED.

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.

&&

$$

THOMAS/TMA/ZAFF

What forecasters said that day

The local office's own words before this ice storm 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 ice storm warning went out at Jan 12, 6:56 AM EST, 3 hours 8 minutes earlier.

Area forecast discussion, Jan 12, 6:56 AM EST, 3 hours 8 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BUFFALO NY
656 AM EST THU JAN 12 2012

.SYNOPSIS...
A DOUBLE BARRELED STORM SYSTEM WILL BRING A VARIETY OF WEATHER
ACROSS THE REGION DURING THE NEXT 24 HOURS AS RAIN IN MOST AREAS
WILL EVENTUALLY TRANSITION TO ACCUMULATING SNOW. THE SNOW WILL
BECOME ENHANCED DOWNWIND OF LAKES ERIE AND ONTARIO LATER FRIDAY AND
FRIDAY NIGHT WITH WIND GUSTS TO 40 MPH HELPING TO DETERIORATE TRAVEL
CONDITIONS REGION WIDE. WE CAN THEN EXPECT THE COLDEST WEATHER OF THE
SEASON OVER THE WEEKEND AS HIGH TEMPERATURES WILL GENERALLY RANGE
FROM THE SINGLE DIGITS EAST OF LAKE ONTARIO TO THE TEENS AND LOWER
20S OVER THE WESTERN COUNTIES.

&&

.NEAR TERM /THROUGH TONIGHT/...
AN UNUSUAL UPPER LEVEL PATTERN WILL PRODUCE SOME EQUALLY CHALLENGING
FORECAST PROBLEMS DURING THE FIRST 24 HOURS OF THIS PACKAGE...AS
WIDESPREAD RAIN WILL GIVE WAY TO SOME SNOW AND VERY BLUSTERY
CONDITIONS. THE UNUSUAL PART OF THIS IS THAT THE DOUBLE BARRELED SFC
STRUCTURE AT THE ONSET OF THIS PACKAGE WILL EVOLVE INTO A DEEPENING
PARENT STORM IN THE VCNTY OF THE LOWER GREAT LAKES RATHER THAN
TRANSITION IT TO THE COAST. ONE COULD SUCCESSFULLY ARGUE THAT IT IS
ACTUALLY A TRIPLE BARRELLED SYSTEM...BUT LETS CONCENTRATE ON TODAY
FIRST.

THE WV IMAGERY EARLY THIS MORNING SHOWS TWO DISTINCT SHORTWAVES. THE
FIRST IS A WELL DEFINED VORTICE THAT IS QUICKLY LIFTING NORTHEAST
FROM THE NATIONS CAPITAL. A WEAK SFC REFLECTION IS FOUND UNDER THE
UPPER LEVEL SUPPORT WHILE A MUCH MORE ORGANIZED...DEEPER LOW WAS
OVER NORTHERN OHIO. NORMALLY...THE ENERGY FROM THE INITIAL SFC LOW
GETS TRANSFERRED TO THE COAST BUT IN THIS CASE...AN EVEN MORE
ENERGETIC SHORTWAVE WILL CAPTURE AND REINVIGORATE THE INITIAL SFC
LOW IN AN UNUSUAL FUJIWARA TYPE OF MOVEMENT. MORE ON THIS IN A
MOMENT.

AS THE FIRST SHORTWAVE LIFTS OUT ACROSS NEW ENGLAND TODAY...A SFC
OCCLUSION WILL LIFT FROM PENNSYLVANIA NORTHWARDS ACROSS OUR WESTERN
COUNTIES. IN THE PROCESS...THE COMBINED DYNAMIC SUPPORT FROM A 50KT
LOW LEVEL JET AND AN EXITING 120KT H25 JET WILL MOVE OUT OF THE
REGION WHILE SOME DRIER MID LEVEL AIR (H700-500 PER GFS) WILL MOVE
OVER THE WESTERN COUNTIES. THIS WILL SHUT DOWN THE STEADY...
WIDESPREAD RAIN FROM EARLY THIS MORNING SO THAT ONLY SCATTERED LIGHT
RAIN SHOWERS OR PATCHY DRIZZLE REMAIN FOR THE MIDDAY AND AFTERNOON.

THE EXCEPTION WILL BE EAST OF LAKE ONTARIO...AND SPECIFICALLY ACROSS
THE NORTH COUNTRY WHERE A STALLED FRONTAL BOUNDARY WILL KEEP ENOUGH
OF A FOCUSING MECHANISM IN PLACE FOR STEADIER PCPN. UNLIKE THE PCPN
OVE THE WESTERN COUNTIES THOUGH...P TYPE WILL STILL BE AN ISSUE FROM
ABOUT WATERTOWN UP ACROSS THE THOUSAND ISLANDS REGION. A PERSISTENT
NORTHEAST LOW LEVEL FLOW OF CHILLY AIR WILL KEEP SFC TEMPS CLOSE TO
FREEZING IN THIS AREA SO MORE FREEZING RAIN IS EXPECTED. ICE AMOUNTS
SHOULD NOT EXCEED 2 TO 3 TENTHS IN THIS AREA...SO WILL CONTINUE THE
WINTER WEATHER ADVISORY THROUGH THE AFTERNOON.

TEMPERATURES FOR THE BETTER PART OF THE MIDDAY AND AFTERNOON WILL BE
CLOSE TO 40 DEGREES ACROSS THE WESTERN COUNTIES WHILE SITES EAST OF
LAKE ONTARIO WILL AVERAGE IN THE MID 30S (LOW-MID 30S ALEX BAY/
THOUSAND ISLANDS REG).

THE SECOND MAIN SHORTWAVE ON WV IMAGERY THIS MORNING CAN BE SEEN
DIVING SOUTH ACROSS THE CENTRAL PLAINS. THIS FEATURE WILL TURN EAST
AND CROSS THE LOWER OHIO VALLEY THIS AFTERNOON BEFORE MAKING ITS WAY
ACROSS THE UPPER OHIO VALLEY AND SOUTHERN PENNSYLVANIA DURING THE
COURSE OF TONIGHT. IN THE PROCESS...THE INITIAL SFC LOW NEAR DTW
WILL BE 'CAPTURED' BY THE SECOND SHORTWAVE AND WILL DEEPEN IN PLACE
TO ABOUT 985MB BEFORE IT WILL DRIFT ACROSS EXTREME SRN ONTARIO
DURING THE OVERNIGHT. THIS SFC LOW SHOULD THEN 'JUMP' TO ERN NEW
YORK AS A SECONDARY LOW WILL TAKE OVER.

THE NOSE OF A 120KT H25 JET WILL MAKE ITS WAY UP THE MID ATLANTIC
COAST DURING THE ABOVE PROCESS...AND THE RESULTING LIFT IN THE LF
EXIT REGION OF THIS JET WILL COMBINE WITH A STRONGLY DIVERGENT MID
AND UPPER LEVEL FLOW TO PRODUCE ANOTHER SLUG OF STEADY RAIN FOR
LATER TONIGHT. THE BULK OF THIS RAIN WILL LIFT ACROSS THE SRN TIER
AND FINGER LAKES REGION BEFORE MAKING ITS WAY EAST OF LK ONTARIO
TOWARDS DAYBREAK.

THE BIGGEST UNCERTAINTY FOR TONIGHT IS TIMING THE CHANGEOVER FROM
SYNOPTIC RAIN TO WET SNOW. THE NAM HAS BEEN CONSISTENTLY COLDER THAN
ITS RIVAL GFS...BUT NOW THE REGIONAL GEM IS STARTING TO SIDE WITH
THE NAM. WILL THUS START A CHANGE OVER TO SNOW AFTER MIDNIGHT OVER
THE FAR WESTERN COUNTIES AND NORTH COUNTRY...WITH MAINLY SNOW
ANTICIPATED BY DAYBREAK. THE CHANGE OVER WILL BE ACCOMPANIED BY
STRENGTHENING WINDS...WITH SOUTHWEST GUSTS TO 30 MPH OR HIGHER OVER
THE WESTERN COUNTIES BY DAYBREAK.

BASED ON THE COMBINED EFFECTS OF THE STRONG WINDS AND EXPECTED
ACCUMULATING SNOWS...WILL ISSUE A WINTER WEATHER ADVISORY FOR THE
ENTIRE REGION. THE START TIME FOR THIS ADVISORY WILL RANGE FROM 09Z
IN THE FAR WEST TO 12Z OVER THE FINGER LAKES. TO AVOID COMPLICATING
THE FORECAST OR CONFUSING THE PUBLIC...WILL SIMPLY EXTEND THE
CURRENT WINTER WEATHER ADVISORY EAST OF LK ONTARIO TO COVER THE ICE
POTENTIAL THROUGH MIDDAY AND THEN THE TRANSITION TO SYNOPTIC SNOW
LATE TONIGHT AND FRIDAY.

&&

.SHORT TERM /FRIDAY THROUGH SATURDAY NIGHT/...
A WINTER WEATHER ADVISORY WILL BE IN EFFECT THROUGH FRIDAY...WITH A
COMBINATION OF SNOW AND WIND IMPACTING THE AREA.

THE SURFACE LOW THAT IS CENTERED OVER OHIO EARLY THIS THURSDAY
MORNING WILL LIFT SLOWLY TO THE NORTHEAST AND DEEPEN AS THE VIGOROUS
UPPER LEVEL TROUGH AND EMBEDDED SHORT WAVE HEAD EAST TOWARD NEW YORK
STATE. THE MODELS GENERALLY AGREE THAT THE CENTER OF THE SURFACE LOW
WILL BE IN PLACE IN THE VICINITY OF LAKE ONTARIO BY 12Z
FRIDAY...THEN TRACK NORTHEAST UP THE ST LAWRENCE RIVER VALLEY FRIDAY
MORNING BEFORE PULLING OUT TO NORTHERN NEW ENGLAND BY THE END OF THE
DAY.

DURING MOST OF FRIDAY...SYNOPTIC SCALE INFLUENCES WILL BE THE
PRIMARY LIFTING MECHANISM DRIVING THE WEATHER...WITH SNOW BEING THE
MAIN PCPN TYPE. THE POSSIBLE EXCEPTION TO THIS GENERAL TREND WILL BE
EAST OF LAKE ONTARIO WHERE BOUNDARY LAYER TEMPERATURES MAY STILL BE
WARM ENOUGH TO SUPPORT A MIXED BAG OF PCPN DURING THE MORNING. AS
THE LOW PULLS AWAY DURING THE LATE MORNING AND AFTERNOON...COLDER
AIR WILL ADVECT EAST ACROSS THE AREA...CHANGING ALL PCPN TO SNOW.
MOISTURE WRAPPING AROUND THE DEPARTING LOW WILL STILL BE GENERATING
A WIDESPREAD AREA OF SNOW THROUGHOUT THE DAY...WHILE A SECONDARY
TROUGH/COLD FRONT WILL GENERATE ADDITIONAL LIFT AS IT DROPS SOUTH
ACROSS NEW YORK STATE DURING THE AFTERNOON. LATER IN THE
DAY...MARGINALLY COLD AIR AND LESS LOW LEVEL SHEAR BENEATH THE
INVERSION COULD LEAD TO SOME LAKE ENHANCEMENT WITH AN ADDITIONAL
COMPONENT OF LIFT COMING FROM THE WESTERLY UPSLOPE FLOW. ALL OF
THESE FACTORS WILL LIKELY RESULT IN WIDESPREAD SNOW ACCUMULATIONS OF
2 TO 3 INCHES...WITH 3 TO 5 INCHES POSSIBLE ACROSS THE HIGHER
ELEVATIONS EAST OF BOTH LAKES.

THE SNOW AND WESTERLY WINDS GUSTING UP TO 40 OR 45 MPH WILL RESULT
IN VERY POOR DRIVING CONDITIONS...ESPECIALLY DURING THE LATE MORNING
AND AFTERNOON WHEN FALLING TEMPERATURES WILL GIVE THE SNOW A DRIER
CONSISTENCY WHICH WILL MAKE IT EASIER TO BLOW AROUND.

FRIDAY NIGHT...THE FOCUS WILL SHIFT MORE TO LAKE EFFECT AS THE
COLDER AIR DEEPENS. BEHIND THE SECONDARY TROUGH...THE BOUNDARY LAYER
WINDS WILL SHIFT TO THE NORTHWEST. THIS WILL CAUSE THE STEADIER LAKE
SNOWS TO SET UP SOUTHEAST OF THE LAKES.

LAKE EFFECT SNOW WILL STILL BE IN PLACE SOUTHEAST OF THE LAKES ON
SATURDAY...BUT IT WILL TEND TO WEAKEN A BIT...ESPECIALLY SOUTHEAST
OF LAKE ONTARIO WHERE THE MOISTURE WILL BECOME LESS FAVORABLE FOR
SUSTAINED SNOW GROWTH AND THE LOW LEVEL SHEAR WILL BEGIN TO
INCREASE. INCREASING SHEAR ASSOCIATED WITH HIGH PRESSURE BUILDING
SOUTH FROM ONTARIO WILL CAUSE THE LAKE EFFECT SNOW TO DIMINISH
FURTHER SATURDAY NIGHT.

&&

.LONG TERM /SUNDAY THROUGH WEDNESDAY/...
BY THE END OF THE WEEKEND...AIR MASS STILL LOOKS PLENTY COLD ENOUGH
WITH 850 MB TEMPERATURES IN THE NEGATIVE MID TEENS CELSIUS TO
MAINTAIN THE POTENTIAL FOR LINGERING LAKE SNOWS SOUTHEAST OF THE
LAKES...BUT WITH INVERSION HEIGHTS LOWERING AND SHEAR INCREASING
THE SNOW WILL BECOME EVEN MORE DISORGANIZED. LAKE ACTIVITY WILL SHUT
DOWN COMPLETELY SUNDAY NIGHT AND MONDAY AS BROAD RIDGE PUSHES ACROSS
THE REGION. THE RIDGE LOOKS TO SLIDE EAST MONDAY NIGHT AND A STRONG
WARM AIR ADVECTION PATTERN SETS UP BEHIND IT AND AHEAD OF AN
APPROACHING ELONGATED COLD FRONT. INCREASE LOW LEVEL MOISTURE INFLOW
AHEAD OF THIS FRONT WILL INCREASE THE THREAT FOR SNOW IN THE MONDAY
NIGHT AND TUESDAY TIME FRAME... WITH THE ADDED LAKE COMPONENT AS
COLDER AIR SPILLS BACK ACROSS THE LOWER LAKES. AIR MASS LOOKS COLD
ENOUGH WITH ENOUGH SYNOPTIC SCALE MOISTURE TO REGENERATE WEST
NORTHWEST FLOW LAKE SNOWS FOR TUESDAY NIGHT AND WEDNESDAY.

&&

.AVIATION /12Z THURSDAY THROUGH MONDAY/...
A DEEPENING STORM SYSTEM OVER NORTHERN OHIO WILL GENERALLY REMAIN IN
PLACE THROUGH THIS EVENING BEFORE CROSSING EXTREME SOUTHERN ONTARIO
LATER TONIGHT. RAIN LIFTING ACROSS WESTERN AND NORTH CENTRAL NEW
YORK FROM THIS FEATURE WILL BECOME MORE SHOWERY DURING THE COURSE OF
THIS MORNING WHILE CIGS WILL DETERIORATE TO BETWEEN 500 AND 1500
FEET. CIGS ARE ALREADY AT IFR LEVELS ACROSS THE SRN TIER.

MVFR TO IFR CIGS WILL BE COMMON ACROSS THE REGION THIS AFTERNOON...
THEN CIGS ARE FORECAST TO FURTHER DETERIORATE TO LIFR TONIGHT AS
ANOTHER AREA OF STEADY PCPN LIFTS ACROSS THE STATE. THIS PCPN WILL
INITIALLY BE IN THE FORM OF RAIN...BUT WILL CHANGE TO SNOW DURING
THE WEE HOURS OF FRIDAY MORNING. VSBYS AT THAT TIME WILL LIKELY DROP
TO IFR LEVELS AT THAT TIME AS WELL.

WINDS WILL BECOME SOUTHWESTERLY OVER THE WESTERN COUNTIES LATE
TONIGHT AND WILL INCREASE TO 15 TO 30 KTS BY DAYBREAK. THESE WINDS
WILL EXTEND ACROSS ALL OF WESTERN AND NORTH CENTRAL NEW YORK ON
FRIDAY WITH WIDESPREAD SNOW EXPECTED.

OUTLOOK...
FRIDAY...MVFR TO IFR WITH SNOW AND GUSTY WINDS.
FRIDAY NIGHT AND SATURDAY MVFR IN CHC SNOW...HEAVIER SNOW LIKELY
SOUTHEAST OF THE LAKES WITH IFR CONDITIONS.
SUNDAY...MVFR TO VFR IN LINGERING SNOW SHOWERS.
MONDAY...MAINLY VFR.

&&

.MARINE...
GALE WARNINGS WILL BE ISSUED FOR BOTH LAKES ERIE AND ONTARIO WITH
THIS PACKAGE AS A STORM SYSTEM OVER NORTHERN OHIO TODAY WILL MOVE
EAST ACROSS LAKE ONTARIO TONIGHT AND FRIDAY. THIS WILL ALLOW FOR
SOUTHWEST WINDS TO FRESHEN TO GALE FORCE. SOME DETAILS...

GENTLE SOUTHEASTERLIES WILL BE FOUND ON LAKE ERIE TODAY WHILE FRESH
EASTERLIES WILL BE EXPERIENCED ON LAKE ONTARIO. THESE WINDS WILL
VEER TO THE SOUTH AND SOUTHWEST DURING THE COURSE OF TONIGHT...
BEFORE FRESHENING TO MINIMUM GALE FORCE ON FRIDAY.

AS THE DEEP SFC LOW MOVES OUT ACROSS EASTERN QUEBEC FRIDAY NIGHT...
WINDS WILL DROP BELOW GALE FORCE. THE WINDS WILL CONTINUE TO SUBSIDE
DURING THE DAY SATURDAY AS THE COLDEST AIRMASS OF THE SEASON MOVES
ACROSS THE LOWER GREAT LAKES.

&&

.BUF WATCHES/WARNINGS/ADVISORIES...
NY...WINTER WEATHER ADVISORY FROM 4 AM TO 7 PM EST FRIDAY FOR
     NYZ001-002-010>012-019>021-085.
     WINTER WEATHER ADVISORY UNTIL 7 PM EST FRIDAY FOR NYZ007-008.
     WINTER WEATHER ADVISORY FROM 7 AM TO 7 PM EST FRIDAY FOR
     NYZ003>006-013-014.
MARINE...SMALL CRAFT ADVISORY FROM 5 AM TO 11 PM EST FRIDAY FOR LEZ020.
         SMALL CRAFT ADVISORY FROM 7 PM THIS EVENING TO 6 AM EST
         FRIDAY FOR LEZ040-041.
         GALE WARNING FROM 6 AM TO 7 PM EST FRIDAY FOR LEZ040-041.
         SMALL CRAFT ADVISORY FROM 5 AM TO 11 PM EST FRIDAY
         FOR LOZ030.
         SMALL CRAFT ADVISORY UNTIL 4 PM EST THIS AFTERNOON FOR
         LOZ042-043.
         GALE WARNING FROM 1 PM TO 11 PM EST FRIDAY FOR LOZ043>045-
         063>065.

&&

SYNOPSIS...RSH
NEAR TERM...RSH
SHORT TERM...TJP
LONG TERM...TJP/TMA
AVIATION...RSH
MARINE...RSH
Hazardous weather outlook, Jan 12, 5:17 AM EST, 4 hours 47 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BUFFALO NY
517 AM EST THU JAN 12 2012

NYZ001-002-010>012-019>021-085-131030-
NIAGARA-ORLEANS-NORTHERN ERIE-GENESEE-WYOMING-CHAUTAUQUA-CATTARAUGUS-
ALLEGANY-SOUTHERN ERIE-
517 AM EST THU JAN 12 2012

...WINTER WEATHER ADVISORY IN EFFECT FROM 4 AM TO 7 PM 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.

   WINTER WEATHER ADVISORY.

.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.

   WINTER WEATHER ADVISORY.

.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

NYZ007-008-131030-
JEFFERSON-LEWIS-
517 AM EST THU JAN 12 2012

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 7 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.

   WINTER WEATHER ADVISORY.

.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.

   WINTER WEATHER ADVISORY.

.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

NYZ006-131030-
OSWEGO-
517 AM EST THU JAN 12 2012

...WINTER WEATHER ADVISORY IN EFFECT FROM 7 AM TO 7 PM EST FRIDAY...

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

.DAY ONE...TODAY AND TONIGHT.

THE CHANCE FOR WIDESPREAD HAZARDOUS WEATHER IS LOW.

.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.

   WINTER WEATHER ADVISORY.

.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>005-013-014-131030-
MONROE-WAYNE-NORTHERN CAYUGA-LIVINGSTON-ONTARIO-
517 AM EST THU JAN 12 2012

...WINTER WEATHER ADVISORY IN EFFECT FROM 7 AM TO 7 PM EST FRIDAY...

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.

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

   WINTER WEATHER ADVISORY.

.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>065-131030-
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-
517 AM EST THU JAN 12 2012

...GALE WARNING IN EFFECT FROM 1 PM TO 11 PM EST FRIDAY...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF LAKE ONTARIO.

.DAY ONE...TODAY AND TONIGHT.

THE CHANCE FOR WIDESPREAD HAZARDOUS WEATHER IS LOW.

.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.

   GALE WARNING.

.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

LOZ042-062-131030-
LAKE ONTARIO NEARSHORE WATERS FROM THE NIAGARA RIVER TO HAMLIN BEACH-
LAKE ONTARIO OPEN WATERS FROM THE NIAGARA RIVER TO HAMLIN BEACH-
517 AM EST THU JAN 12 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF LAKE ONTARIO.

.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

LEZ020-LOZ030-131030-
UPPER NIAGARA RIVER AND BUFFALO HARBOR-LOWER NIAGARA RIVER-
517 AM EST THU JAN 12 2012

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

.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

SLZ022-024-131030-
SAINT LAWRENCE RIVER FROM CAPE VINCENT TO OGDENSBURG-
SAINT LAWRENCE RIVER FROM OGDENSBURG TO SAINT REGIS-
517 AM EST THU JAN 12 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE NEW YORK WATERS OF THE
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

LEZ040-041-131030-
LAKE ERIE NEARSHORE WATERS FROM RIPLEY TO DUNKIRK-
LAKE ERIE NEARSHORE WATERS FROM DUNKIRK TO BUFFALO-
517 AM EST THU JAN 12 2012

...GALE WARNING IN EFFECT FROM 6 AM TO 7 PM EST FRIDAY...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF LAKE ERIE.

.DAY ONE...TODAY AND TONIGHT.

THE CHANCE FOR WIDESPREAD HAZARDOUS WEATHER IS LOW.

.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.

   GALE WARNING.

.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, Jan 12, 4:53 AM EST, 5 hours 11 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
453 AM EST THU JAN 12 2012

NYZ007-008-121300-
JEFFERSON-LEWIS-
INCLUDING THE CITIES OF...WATERTOWN...LOWVILLE
453 AM EST THU JAN 12 2012

...MIXED PRECIPITATION CONTINUING TO IMPACT THE AREA EARLY THIS MORNING...

STEADY RAIN WILL CONTINUE TO FALL ACROSS THE AREA EARLY THIS
MORNING. THE RAIN WILL MIX WITH SLEET AT TIMES...BUT WHERE
TEMPERATURES ARE STILL BELOW 32 DEGREES...FREEZING RAIN IS MORE
LIKELY. THIS IS ESPECIALLY THE CASE CLOSE TO THE ST LAWRENCE RIVER
WHERE TEMPERATURES ARE RANGING THROUGH THE 20S.

UNTREATED ROADS AND WALKWAYS WILL BE TREACHEROUS WHERE THE
FREEZING RAIN IS MOST PERSISTENT. BE ESPECIALLY CAREFUL IF YOU
HAVE TO DO ANY TRAVELING FROM CAPE VINCENT TO ALEXANDRIA BAY.

TJP
Special weather statement, Jan 12, 6:56 AM EST, 3 hours 8 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
656 AM EST THU JAN 12 2012

NYZ007-121500-
JEFFERSON-
INCLUDING THE CITY OF...WATERTOWN
656 AM EST THU JAN 12 2012

...FREEZING RAIN IMPACTING THE NORTHERN PART OF THE COUNTY EARLY
THIS MORNING...

LIGHT TO MODERATE FREEZING RAIN WILL CONTINUE TO IMPACT AREAS
NORTH OF FORT DRUM EARLY THIS MORNING. UP TO AN ADDITIONAL ONE
QUARTER INCH OF ICE IS POSSIBLE THROUGH 10 AM...ESPECIALLY FOR
LOCATIONS NEAR THE ST LAWRENCE RIVER WHERE TEMPERATURES WILL BE
HOVERING IN THE MID AND UPPER 20S.

UNTREATED ROADS AND WALKWAYS WILL REMAIN TREACHEROUS. USE EXTREME
CAUTION IF YOU HAVE TO TRAVEL NORTH OF WATERTOWN AND FORT DRUM
THIS MORNING.

FROM FORT DRUM SOUTHWARD...TEMPERATURES WILL BE WARM ENOUGH FOR
JUST RAIN.

TJP
Special weather statement, Jan 12, 9:38 AM EST, 26 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
938 AM EST THU JAN 12 2012

NYZ007-121600-
JEFFERSON-
INCLUDING THE CITY OF...WATERTOWN
938 AM EST THU JAN 12 2012

...FREEZING RAIN WILL CONTINUE TO IMPACT THE NORTHERN PART OF THE
COUNTY THIS MORNING...

FREEZING RAIN WILL CONTINUE TO IMPACT AREAS NORTH OF WATERTOWN
AND FORT DRUM THIS MORNING...ESPECIALLY FOR LOCATIONS ALONG THE
SAINT LAWRENCE RIVER. UP TO AN ADDITIONAL ONE QUARTER INCH OF ICE
IS POSSIBLE THROUGH 11 AM...WHICH MAY CAUSE SOME DAMAGE TO TREE
LIMBS AND PRODUCE SCATTERED POWER OUTAGES.

UNTREATED ROADS AND WALKWAYS WILL REMAIN VERY TREACHEROUS. USE
EXTREME CAUTION IF YOU HAVE TO TRAVEL NORTH OF WATERTOWN AND
FORT DRUM THIS MORNING. SOME ROADS MAY BE CLOSED DUE TO THE ICING
CONDITIONS.

TMA

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 12, 4:08 AM ESTGale WarningBUF41 hr
Jan 12, 4:08 AM ESTSmall Craft AdvisoryBUF56 hr
Jan 12, 4:35 AM ESTWinter Weather AdvisoryBUFAllegany, Cattaraugus, Cayuga, Chautauqua, Erie, Genesee and 9 more59 hr
Jan 12, 4:00 PM ESTLake Effect Snow WatchBUFCattaraugus, Chautauqua, Erie, Jefferson, Lewis, Oswego and 1 more18 hr

Nearby

Ice Storm Warnings in New York, 2012Every ice storm warning in 2012

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.