Alert archive / New York / Lake Effect Snow Advisories in 2013

Lake Effect Snow Advisory 13, NWS Buffalo, NY

March 19, 20134 counties in New York

NWS Buffalo, NY issued this lake effect snow advisory at Mar 19, 2013, 4:33 AM EDT for 4 counties in New York. It took effect at Mar 19, 2013, 5:00 PM EDT. It was in force for 4 hr.

The area

The counties it named.

The facts

Issued
Mar 19, 2013, 4:33 AM EDT (08:33 UTC)
In effect from
Mar 19, 2013, 5:00 PM EDT
Expired
Mar 19, 2013, 9:02 PM EDT
In force
4 hr
Issued by
NWS Buffalo, NY

Counties Cattaraugus County, NY, Chautauqua County, NY, Erie County, NY, Wyoming County, NY

The radar

The Buffalo radar (KBUF), 50 km from the middle of the area, began a volume at 08:34 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 00:00Z, 8.6 hours before the alert went out and 48 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 00:00Z on 2013-03-19Temperature 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 00:00Z on 2013-03-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 484 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
682 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
484 m²/s²
0-3 km storm-relative helicity
539 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.

803 
WWUS41 KBUF 190833
WSWBUF

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE BUFFALO NY
433 AM EDT TUE MAR 19 2013

NYZ006>008-191645-
/O.UPG.KBUF.LE.A.0008.130320T0000Z-130320T2200Z/
/O.NEW.KBUF.LE.W.0007.130320T0000Z-130321T2200Z/
/O.CON.KBUF.WS.W.0002.000000T0000Z-130320T0000Z/
OSWEGO-JEFFERSON-LEWIS-
INCLUDING THE CITIES OF...OSWEGO...WATERTOWN...LOWVILLE
433 AM EDT TUE MAR 19 2013

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 8 PM EDT THIS
EVENING...
...LAKE EFFECT SNOW WARNING IN EFFECT FROM 8 PM THIS EVENING TO
6 PM EDT THURSDAY...

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A LAKE EFFECT
SNOW WARNING...WHICH IS IN EFFECT FROM 8 PM THIS EVENING TO 6 PM
EDT THURSDAY. THE LAKE EFFECT SNOW WATCH IS NO LONGER IN EFFECT. 

* LOCATIONS...OSWEGO...JEFFERSON...AND LEWIS COUNTIES.

* TIMING...THROUGH EARLY THURSDAY EVENING.

* HAZARDS...HEAVY SNOW.

* ACCUMULATIONS...ADDITIONAL SNOW ACCUMULATIONS 2 TO 4 INCHES
  TODAY...MAINLY OVER HIGHER ELEVATIONS. LAKE EFFECT SNOW WILL
  BRING ADDITIONAL ACCUMULATIONS OF 6 TO 14 INCHES TONIGHT THROUGH
  THURSDAY...HEAVIEST ACROSS THE TUG HILL.

* IMPACTS...SNOW WILL RESULT IN HAZARDOUS TRAVEL CONDITIONS WITH
  SNOW COVERED ROADS AND REDUCED VISIBILITY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING IS ISSUED WHEN SEVERE WINTER WEATHER IS
EXPECTED. HEAVY SNOW AND/OR ICE WILL CAUSE HAZARDOUS DRIVING
CONDITIONS. IF YOU WILL BE TRAVELING IN THE WARNING AREA YOU
SHOULD CHOOSE AN ALTERNATE ROUTE IF POSSIBLE...OR YOU SHOULD USE
EXTREME CAUTION IF TRAVEL IS UNAVOIDABLE.

IN LAKE EFFECT SNOW THE WEATHER CAN VARY FROM LOCALLY HEAVY SNOW
IN NARROW BANDS TO CLEAR SKIES JUST A FEW MILES AWAY. IF YOU WILL
BE TRAVELING ACROSS THE REGION BE PREPARED FOR RAPID CHANGES IN
ROAD AND VISIBILITY CONDITIONS.

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.

REPORT SNOW ACCUMULATION TO THE NATIONAL WEATHER SERVICE IN
BUFFALO BY SENDING AN EMAIL TO BUFSTORM.REPORT@NOAA.GOV...POSTING
TO THE NWS BUFFALO FACEBOOK PAGE...OR TWEET...USING THE HASHTAG
BUFWX

&&

$$

NYZ019-085-191645-
/O.NEW.KBUF.LE.Y.0013.130319T2100Z-130321T1000Z/
/O.CON.KBUF.WW.Y.0011.000000T0000Z-130319T1000Z/
CHAUTAUQUA-SOUTHERN ERIE-
INCLUDING THE CITIES OF...JAMESTOWN...ORCHARD PARK...SPRINGVILLE
433 AM EDT TUE MAR 19 2013

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM EDT EARLY
THIS MORNING...
...LAKE EFFECT SNOW ADVISORY IN EFFECT FROM 5 PM THIS AFTERNOON
TO 6 AM EDT THURSDAY...

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A LAKE EFFECT
SNOW ADVISORY...WHICH IS IN EFFECT FROM 5 PM THIS AFTERNOON TO
6 AM EDT THURSDAY. 

* LOCATIONS...CHAUTAUQUA AND SOUTHERN ERIE COUNTIES...MAINLY 
  INLAND FROM THE LAKE ERIE SHORE. 

* TIMING...THROUGH LATE WEDNESDAY NIGHT.

* HAZARDS...FREEZING RAIN AND SNOW.

* ACCUMULATIONS...ICE ACCUMULATING LESS THAN ONE TENTH OF AN INCH
  THROUGH 6 AM. SNOW ACCUMULATING 4 TO 8 INCHES LATE THIS AFTERNOON
  THROUGH WEDNESDAY NIGHT...MAINLY ACROSS HIGHER ELEVATIONS.

* IMPACTS...FREEZING RAIN WILL RESULT IN DIFFICULT TRAVEL AT TIMES
  WITH SLIPPERY ROADS EARLY TODAY. SNOW WILL RESULT IN HAZARDOUS
  TRAVEL CONDITIONS WITH SNOW COVERED ROADS AND REDUCED VISIBILITY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY IS NORMALLY ISSUED FOR A VARIETY OF
WINTER WEATHER CONDITIONS SUCH AS LIGHT SNOW...SLEET...AND
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.

REPORT SNOW AND ICE ACCUMULATION TO THE NATIONAL WEATHER SERVICE
IN BUFFALO BY SENDING AN EMAIL TO BUFSTORM.REPORT@NOAA.GOV...
POSTING TO THE NWS BUFFALO FACEBOOK PAGE...OR TWEET...USING THE
HASHTAG BUFWX

IN LAKE EFFECT SNOW THE WEATHER CAN VARY FROM LOCALLY HEAVY SNOW
IN NARROW BANDS TO CLEAR SKIES JUST A FEW MILES AWAY. IF YOU WILL
BE TRAVELING ACROSS THE REGION BE PREPARED FOR RAPID CHANGES IN
ROAD AND VISIBILITY CONDITIONS.

&&

$$

NYZ012-020-191645-
/O.NEW.KBUF.LE.Y.0013.130319T2100Z-130321T1000Z/
/O.CON.KBUF.WW.Y.0011.000000T0000Z-130319T1000Z/
WYOMING-CATTARAUGUS-
INCLUDING THE CITIES OF...WARSAW...OLEAN
433 AM EDT TUE MAR 19 2013

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM EDT EARLY
THIS MORNING...
...LAKE EFFECT SNOW ADVISORY IN EFFECT FROM 5 PM THIS AFTERNOON
TO 6 AM EDT THURSDAY...

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A LAKE EFFECT
SNOW ADVISORY...WHICH IS IN EFFECT FROM 5 PM THIS AFTERNOON TO
6 AM EDT THURSDAY. 

* LOCATIONS...WYOMING...LIVINGSTON...CATTARAUGUS AND ALLEGANY 
  COUNTIES. 

* TIMING...THROUGH LATE WEDNESDAY NIGHT.

* HAZARDS...FREEZING RAIN AND SNOW.

* ACCUMULATIONS...ICE ACCUMULATING LESS THAN ONE TENTH OF AN INCH
  THROUGH 6 AM. SNOW ACCUMULATING 4 TO 8 INCHES LATE THIS AFTERNOON
  THROUGH WEDNESDAY NIGHT...MAINLY ACROSS HIGHER ELEVATIONS.

* IMPACTS...FREEZING RAIN WILL RESULT IN DIFFICULT TRAVEL AT TIMES
  WITH SLIPPERY ROADS EARLY TODAY. SNOW WILL RESULT IN HAZARDOUS
  TRAVEL CONDITIONS WITH SNOW COVERED ROADS AND REDUCED
  VISIBILITY. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY IS NORMALLY ISSUED FOR A VARIETY OF
WINTER WEATHER CONDITIONS SUCH AS LIGHT SNOW...SLEET...AND
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.

REPORT SNOW AND ICE ACCUMULATION TO THE NATIONAL WEATHER SERVICE
IN BUFFALO BY SENDING AN EMAIL TO BUFSTORM.REPORT@NOAA.GOV...
POSTING TO THE NWS BUFFALO FACEBOOK PAGE...OR TWEET...USING THE
HASHTAG BUFWX

IN LAKE EFFECT SNOW THE WEATHER CAN VARY FROM LOCALLY HEAVY SNOW
IN NARROW BANDS TO CLEAR SKIES JUST A FEW MILES AWAY. IF YOU WILL
BE TRAVELING ACROSS THE REGION BE PREPARED FOR RAPID CHANGES IN
ROAD AND VISIBILITY CONDITIONS.

&&

$$

NYZ013-021-191000-
/O.CON.KBUF.WW.Y.0011.000000T0000Z-130319T1000Z/
LIVINGSTON-ALLEGANY-
INCLUDING THE CITIES OF...GENESEO...WELLSVILLE
433 AM EDT TUE MAR 19 2013

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM EDT EARLY
THIS MORNING...

* LOCATIONS...WYOMING...LIVINGSTON...CATTARAUGUS AND ALLEGANY 
  COUNTIES. 

* TIMING...THROUGH EARLY THIS MORNING.

* HAZARDS...SNOW AND FREEZING RAIN.

* ACCUMULATIONS...SNOW ACCUMULATING AN INCH OR LESS THROUGH 6 
  AM. ICE ACCUMULATING LESS THAN ONE TENTH OF AN INCH THROUGH 6 
  AM.

* IMPACTS...SNOW AND A WINTRY MIX INCLUDING FREEZING RAIN WILL
  RESULT IN DIFFICULT TRAVEL AT TIMES WITH SLIPPERY ROADS AND
  REDUCED VISIBILITY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY IS NORMALLY ISSUED FOR A VARIETY OF
WINTER WEATHER CONDITIONS SUCH AS LIGHT SNOW...SLEET...AND
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.

REPORT SNOW AND ICE ACCUMULATION TO THE NATIONAL WEATHER SERVICE
IN BUFFALO BY SENDING AN EMAIL TO BUFSTORM.REPORT@NOAA.GOV...
POSTING TO THE NWS BUFFALO FACEBOOK PAGE...OR TWEET...USING THE
HASHTAG BUFWX

&&

$$

NYZ004-005-014-191500-
/O.CON.KBUF.WW.Y.0011.000000T0000Z-130319T1500Z/
WAYNE-NORTHERN CAYUGA-ONTARIO-
INCLUDING THE CITIES OF...NEWARK...FAIR HAVEN...CANANDAIGUA
433 AM EDT TUE MAR 19 2013

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM EDT THIS
MORNING...

* LOCATIONS...ONTARIO...WAYNE...AND NORTHERN CAYUGA COUNTIES.

* TIMING...THROUGH LATE THIS MORNING.

* HAZARDS...FREEZING RAIN AND SNOW.

* ACCUMULATIONS...ICE ACCUMULATING LESS THAN ONE TENTH OF AN INCH.
  SNOW ACCUMULATING LESS THAN 2 INCHES.

* IMPACTS...SNOW AND A WINTRY MIX INCLUDING FREEZING RAIN WILL
  RESULT IN DIFFICULT TRAVEL AT TIMES WITH SLIPPERY ROADS AND
  REDUCED VISIBILITY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY IS NORMALLY ISSUED FOR A VARIETY OF
WINTER WEATHER CONDITIONS SUCH AS LIGHT SNOW...SLEET...AND
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.

REPORT SNOW AND ICE ACCUMULATION TO THE NATIONAL WEATHER SERVICE
IN BUFFALO BY SENDING AN EMAIL TO BUFSTORM.REPORT@NOAA.GOV...
POSTING TO THE NWS BUFFALO FACEBOOK PAGE...OR TWEET...USING THE
HASHTAG BUFWX

&&

$$

TMA
5 follow-up statements
574 
WWUS41 KBUF 190959
WSWBUF

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE BUFFALO NY
559 AM EDT TUE MAR 19 2013

NYZ012-019-020-085-191800-
/O.CAN.KBUF.WW.Y.0011.000000T0000Z-130319T1000Z/
/O.CON.KBUF.LE.Y.0013.130319T2100Z-130321T1000Z/
WYOMING-CHAUTAUQUA-CATTARAUGUS-SOUTHERN ERIE-
INCLUDING THE CITIES OF...WARSAW...JAMESTOWN...OLEAN...
ORCHARD PARK...SPRINGVILLE
559 AM EDT TUE MAR 19 2013

...LAKE EFFECT SNOW ADVISORY REMAINS IN EFFECT FROM 5 PM THIS
AFTERNOON TO 6 AM EDT THURSDAY...
...WINTER WEATHER ADVISORY IS CANCELLED...

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

* LOCATIONS...WYOMING...CATTARAUGUS...CHAUTAUQUA AND SOUTHERN ERIE
  COUNTIES. MAINLY INLAND FROM THE LAKE ERIE SHORE.

* TIMING...LATE THIS AFTERNOON THROUGH LATE WEDNESDAY NIGHT.

* HAZARDS...LAKE EFFECT SNOW AND BLOWING SNOW.

* ACCUMULATIONS...SNOW ACCUMULATING 4 TO 8 INCHES LATE THIS AFTERNOON
  THROUGH WEDNESDAY NIGHT...MAINLY ACROSS HIGHER ELEVATIONS.

* IMPACTS...SNOW WILL RESULT IN HAZARDOUS TRAVEL CONDITIONS WITH
  SNOW COVERED ROADS AND REDUCED VISIBILITY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY IS NORMALLY ISSUED FOR A VARIETY OF
WINTER WEATHER CONDITIONS SUCH AS LIGHT SNOW...SLEET...AND
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.

REPORT SNOW AND ICE ACCUMULATION TO THE NATIONAL WEATHER SERVICE
IN BUFFALO BY SENDING AN EMAIL TO BUFSTORM.REPORT@NOAA.GOV...
POSTING TO THE NWS BUFFALO FACEBOOK PAGE...OR TWEET...USING THE
HASHTAG BUFWX

IN LAKE EFFECT SNOW THE WEATHER CAN VARY FROM LOCALLY HEAVY SNOW
IN NARROW BANDS TO CLEAR SKIES JUST A FEW MILES AWAY. IF YOU WILL
BE TRAVELING ACROSS THE REGION BE PREPARED FOR RAPID CHANGES IN
ROAD AND VISIBILITY CONDITIONS.

&&

$$

NYZ006>008-191800-
/O.CON.KBUF.WS.W.0002.000000T0000Z-130320T0000Z/
/O.CON.KBUF.LE.W.0007.130320T0000Z-130321T2200Z/
OSWEGO-JEFFERSON-LEWIS-
INCLUDING THE CITIES OF...OSWEGO...WATERTOWN...LOWVILLE
559 AM EDT TUE MAR 19 2013

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 8 PM EDT THIS
EVENING...
...LAKE EFFECT SNOW WARNING REMAINS IN EFFECT FROM 8 PM THIS
EVENING TO 6 PM EDT THURSDAY...

* LOCATIONS...OSWEGO...JEFFERSON...AND LEWIS COUNTIES.

* TIMING...THROUGH EARLY THURSDAY EVENING.

* HAZARDS...HEAVY SNOW.

* ACCUMULATIONS...ADDITIONAL SNOW ACCUMULATIONS 2 TO 4 INCHES
  TODAY...MAINLY OVER HIGHER ELEVATIONS. LAKE EFFECT SNOW WILL
  BRING ADDITIONAL ACCUMULATIONS OF 6 TO 14 INCHES TONIGHT THROUGH
  THURSDAY...HEAVIEST ACROSS THE TUG HILL.

* IMPACTS...SNOW WILL RESULT IN HAZARDOUS TRAVEL CONDITIONS WITH
  SNOW COVERED ROADS AND REDUCED VISIBILITY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING IS ISSUED WHEN SEVERE WINTER WEATHER IS
EXPECTED. HEAVY SNOW AND/OR ICE WILL CAUSE HAZARDOUS DRIVING
CONDITIONS. IF YOU WILL BE TRAVELING IN THE WARNING AREA YOU
SHOULD CHOOSE AN ALTERNATE ROUTE IF POSSIBLE...OR YOU SHOULD USE
EXTREME CAUTION IF TRAVEL IS UNAVOIDABLE.

IN LAKE EFFECT SNOW THE WEATHER CAN VARY FROM LOCALLY HEAVY SNOW
IN NARROW BANDS TO CLEAR SKIES JUST A FEW MILES AWAY. IF YOU WILL
BE TRAVELING ACROSS THE REGION BE PREPARED FOR RAPID CHANGES IN
ROAD AND VISIBILITY CONDITIONS.

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.

REPORT SNOW ACCUMULATION TO THE NATIONAL WEATHER SERVICE IN
BUFFALO BY SENDING AN EMAIL TO BUFSTORM.REPORT@NOAA.GOV...POSTING
TO THE NWS BUFFALO FACEBOOK PAGE...OR TWEET...USING THE HASHTAG
BUFWX

&&

$$

NYZ013-021-191500-
/O.EXT.KBUF.WW.Y.0011.000000T0000Z-130319T1500Z/
LIVINGSTON-ALLEGANY-
INCLUDING THE CITIES OF...GENESEO...WELLSVILLE
559 AM EDT TUE MAR 19 2013

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 11 AM EDT THIS
MORNING...

* LOCATIONS...LIVINGSTON AND ALLEGANY COUNTIES.

* TIMING...THROUGH LATE THIS MORNING.

* HAZARDS...SNOW AND FREEZING RAIN.

* ACCUMULATIONS...SNOW ACCUMULATING LESS THAN AN INCH THROUGH 10
  AM. ICE ACCUMULATING LESS THAN ONE TENTH OF AN INCH THIS
  MORNING.

* IMPACTS...SNOW AND A WINTRY MIX INCLUDING FREEZING RAIN WILL 
  RESULT IN DIFFICULT TRAVEL AT TIMES WITH SLIPPERY ROADS AND 
  REDUCED VISIBILITY. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY IS NORMALLY ISSUED FOR A VARIETY OF
WINTER WEATHER CONDITIONS SUCH AS LIGHT SNOW...SLEET...AND
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.

REPORT SNOW AND ICE ACCUMULATION TO THE NATIONAL WEATHER SERVICE
IN BUFFALO BY SENDING AN EMAIL TO BUFSTORM.REPORT@NOAA.GOV...
POSTING TO THE NWS BUFFALO FACEBOOK PAGE...OR TWEET...USING THE
HASHTAG BUFWX

&&

$$

NYZ004-005-014-191500-
/O.CON.KBUF.WW.Y.0011.000000T0000Z-130319T1500Z/
WAYNE-NORTHERN CAYUGA-ONTARIO-
INCLUDING THE CITIES OF...NEWARK...FAIR HAVEN...CANANDAIGUA
559 AM EDT TUE MAR 19 2013

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM EDT THIS
MORNING...

* LOCATIONS...ONTARIO...WAYNE...AND NORTHERN CAYUGA COUNTIES.

* TIMING...THROUGH LATE THIS MORNING.

* HAZARDS...FREEZING RAIN AND SNOW.

* ACCUMULATIONS...ICE ACCUMULATING LESS THAN ONE TENTH OF AN INCH.
  SNOW ACCUMULATING LESS THAN AN INCH. 

* IMPACTS...SNOW AND A WINTRY MIX INCLUDING FREEZING RAIN WILL 
  RESULT IN DIFFICULT TRAVEL AT TIMES WITH SLIPPERY ROADS AND 
  REDUCED VISIBILITY. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY IS NORMALLY ISSUED FOR A VARIETY OF
WINTER WEATHER CONDITIONS SUCH AS LIGHT SNOW...SLEET...AND
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.

REPORT SNOW AND ICE ACCUMULATION TO THE NATIONAL WEATHER SERVICE
IN BUFFALO BY SENDING AN EMAIL TO BUFSTORM.REPORT@NOAA.GOV...
POSTING TO THE NWS BUFFALO FACEBOOK PAGE...OR TWEET...USING THE
HASHTAG BUFWX

&&

$$

THOMAS
273 
WWUS41 KBUF 191423
WSWBUF

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE BUFFALO NY
1023 AM EDT TUE MAR 19 2013

NYZ004-005-013-014-021-191530-
/O.CAN.KBUF.WW.Y.0011.000000T0000Z-130319T1500Z/
WAYNE-NORTHERN CAYUGA-LIVINGSTON-ONTARIO-ALLEGANY-
INCLUDING THE CITIES OF...NEWARK...FAIR HAVEN...GENESEO...
CANANDAIGUA...WELLSVILLE
1023 AM EDT TUE MAR 19 2013

...WINTER WEATHER ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS CANCELLED THE WINTER
WEATHER ADVISORY. 

$$

NYZ006>008-192230-
/O.CON.KBUF.WS.W.0002.000000T0000Z-130320T0000Z/
/O.CON.KBUF.LE.W.0007.130320T0000Z-130321T2200Z/
OSWEGO-JEFFERSON-LEWIS-
INCLUDING THE CITIES OF...OSWEGO...WATERTOWN...LOWVILLE
1023 AM EDT TUE MAR 19 2013

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 8 PM EDT THIS
EVENING...
...LAKE EFFECT SNOW WARNING REMAINS IN EFFECT FROM 8 PM THIS
EVENING TO 6 PM EDT THURSDAY...

* LOCATIONS...OSWEGO...JEFFERSON...AND LEWIS COUNTIES.

* TIMING...THROUGH EARLY THURSDAY EVENING.

* HAZARDS...HEAVY LAKE EFFECT SNOW.

* ACCUMULATIONS...SNOW ACCUMULATING UP TO 2 INCHES TODAY...3 TO 
  5 INCHES TONIGHT...3 TO 5 INCHES WEDNESDAY...4 TO 8 INCHES 
  WEDNESDAY NIGHT...AND 3 TO 5 INCHES THURSDAY. ICE ACCUMULATING 
  LESS THAN ONE TENTH OF AN INCH TODAY.

* IMPACTS...SNOW WILL RESULT IN HAZARDOUS TRAVEL CONDITIONS WITH 
  SNOW COVERED ROADS AND REDUCED VISIBILITY. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING IS ISSUED WHEN SEVERE WINTER WEATHER IS
EXPECTED. HEAVY SNOW AND/OR ICE WILL CAUSE HAZARDOUS DRIVING
CONDITIONS. IF YOU WILL BE TRAVELING IN THE WARNING AREA YOU
SHOULD CHOOSE AN ALTERNATE ROUTE IF POSSIBLE...OR YOU SHOULD USE
EXTREME CAUTION IF TRAVEL IS UNAVOIDABLE.

IN LAKE EFFECT SNOW THE WEATHER CAN VARY FROM LOCALLY HEAVY SNOW
IN NARROW BANDS TO CLEAR SKIES JUST A FEW MILES AWAY. IF YOU WILL
BE TRAVELING ACROSS THE REGION BE PREPARED FOR RAPID CHANGES IN
ROAD AND VISIBILITY CONDITIONS.

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.

REPORT SNOW ACCUMULATION TO THE NATIONAL WEATHER SERVICE IN
BUFFALO BY SENDING AN EMAIL TO BUFSTORM.REPORT@NOAA.GOV...POSTING
TO THE NWS BUFFALO FACEBOOK PAGE...OR TWEET...USING THE HASHTAG
BUFWX

&&

$$

NYZ012-019-020-085-192230-
/O.CON.KBUF.LE.Y.0013.130319T2100Z-130321T1000Z/
WYOMING-CHAUTAUQUA-CATTARAUGUS-SOUTHERN ERIE-
INCLUDING THE CITIES OF...WARSAW...JAMESTOWN...OLEAN...
ORCHARD PARK...SPRINGVILLE
1023 AM EDT TUE MAR 19 2013

...LAKE EFFECT SNOW ADVISORY REMAINS IN EFFECT FROM 5 PM THIS
AFTERNOON TO 6 AM EDT THURSDAY...

* LOCATIONS...WYOMING...CATTARAUGUS...CHAUTAUQUA AND SOUTHERN 
  ERIE COUNTIES. MAINLY INLAND FROM THE LAKE ERIE SHORE. 

* TIMING...LATE THIS AFTERNOON THROUGH LATE WEDNESDAY NIGHT.

* HAZARDS...LAKE EFFECT SNOW AND BLOWING SNOW.

* ACCUMULATIONS...AN INCH OR LESS TODAY...3 TO 5 INCHES 
  TONIGHT...1 TO 3 INCHES WEDNESDAY...AND 2 TO 4 INCHES 
  WEDNESDAY NIGHT...LEADING TO STORM TOTALS OF 6 TO 12 INCHES 
  IN THE MOST PERSISTENT LAKE SNOWS.

* IMPACTS...SNOW WILL RESULT IN HAZARDOUS TRAVEL CONDITIONS WITH 
  SNOW COVERED ROADS AND REDUCED VISIBILITY. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY IS NORMALLY ISSUED FOR A VARIETY OF
WINTER WEATHER CONDITIONS SUCH AS LIGHT SNOW...SLEET...AND
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.

REPORT SNOW AND ICE ACCUMULATION TO THE NATIONAL WEATHER SERVICE
IN BUFFALO BY SENDING AN EMAIL TO BUFSTORM.REPORT@NOAA.GOV...
POSTING TO THE NWS BUFFALO FACEBOOK PAGE...OR TWEET...USING THE
HASHTAG BUFWX

IN LAKE EFFECT SNOW THE WEATHER CAN VARY FROM LOCALLY HEAVY SNOW
IN NARROW BANDS TO CLEAR SKIES JUST A FEW MILES AWAY. IF YOU WILL
BE TRAVELING ACROSS THE REGION BE PREPARED FOR RAPID CHANGES IN
ROAD AND VISIBILITY CONDITIONS.

&&

$$
842 
WWUS41 KBUF 191935
WSWBUF

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE BUFFALO NY
335 PM EDT TUE MAR 19 2013

NYZ006>008-200345-
/O.CON.KBUF.WS.W.0002.000000T0000Z-130320T0000Z/
/O.CON.KBUF.LE.W.0007.130320T0000Z-130321T2200Z/
OSWEGO-JEFFERSON-LEWIS-
INCLUDING THE CITIES OF...OSWEGO...WATERTOWN...LOWVILLE
335 PM EDT TUE MAR 19 2013

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 8 PM EDT THIS
EVENING...
...LAKE EFFECT SNOW WARNING REMAINS IN EFFECT FROM 8 PM THIS
EVENING TO 6 PM EDT THURSDAY...

* LOCATIONS...OSWEGO...JEFFERSON...AND LEWIS COUNTIES.

* TIMING...THROUGH EARLY THURSDAY EVENING.

* HAZARDS...HEAVY LAKE EFFECT SNOW.

* ACCUMULATIONS...AN INCH OR LESS THIS AFTERNOON...6 TO 10 INCHES
  TONIGHT...WITH ADDITIONAL 12 TO 18 INCHES WEDNESDAY AND WEDNESDAY
  NIGHT.

* IMPACTS...SNOW WILL RESULT IN HAZARDOUS TRAVEL CONDITIONS WITH 
  SNOW COVERED ROADS AND REDUCED VISIBILITY. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING IS ISSUED WHEN SEVERE WINTER WEATHER IS
EXPECTED. HEAVY SNOW AND/OR ICE WILL CAUSE HAZARDOUS DRIVING
CONDITIONS. IF YOU WILL BE TRAVELING IN THE WARNING AREA YOU
SHOULD CHOOSE AN ALTERNATE ROUTE IF POSSIBLE...OR YOU SHOULD USE
EXTREME CAUTION IF TRAVEL IS UNAVOIDABLE.

IN LAKE EFFECT SNOW THE WEATHER CAN VARY FROM LOCALLY HEAVY SNOW
IN NARROW BANDS TO CLEAR SKIES JUST A FEW MILES AWAY. IF YOU WILL
BE TRAVELING ACROSS THE REGION BE PREPARED FOR RAPID CHANGES IN
ROAD AND VISIBILITY CONDITIONS.

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.

REPORT SNOW ACCUMULATION TO THE NATIONAL WEATHER SERVICE IN
BUFFALO BY SENDING AN EMAIL TO BUFSTORM.REPORT@NOAA.GOV...POSTING
TO THE NWS BUFFALO FACEBOOK PAGE...OR TWEET...USING THE HASHTAG
BUFWX

&&

$$

NYZ012-019-020-085-200345-
/O.CON.KBUF.LE.Y.0013.130319T2100Z-130321T1000Z/
WYOMING-CHAUTAUQUA-CATTARAUGUS-SOUTHERN ERIE-
INCLUDING THE CITIES OF...WARSAW...JAMESTOWN...OLEAN...
ORCHARD PARK...SPRINGVILLE
335 PM EDT TUE MAR 19 2013

...LAKE EFFECT SNOW ADVISORY REMAINS IN EFFECT UNTIL 6 AM EDT
THURSDAY...

* LOCATIONS...WYOMING...CATTARAUGUS...CHAUTAUQUA AND SOUTHERN 
  ERIE COUNTIES. MAINLY INLAND FROM THE LAKE ERIE SHORE. 

* TIMING...LATE THIS AFTERNOON THROUGH LATE WEDNESDAY NIGHT.

* HAZARDS...LAKE EFFECT SNOW.

* ACCUMULATIONS...AN INCH OR LESS TODAY...2 TO 4 INCHES
  TONIGHT...2 TO 4 INCHES WEDNESDAY...AND 2 TO 4 INCHES WEDNESDAY
  NIGHT.

* IMPACTS...SNOW WILL RESULT IN HAZARDOUS TRAVEL CONDITIONS WITH 
  SNOW COVERED ROADS AND REDUCED VISIBILITY. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY IS NORMALLY ISSUED FOR A VARIETY OF
WINTER WEATHER CONDITIONS SUCH AS LIGHT SNOW...SLEET...AND
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.

REPORT SNOW AND ICE ACCUMULATION TO THE NATIONAL WEATHER SERVICE
IN BUFFALO BY SENDING AN EMAIL TO BUFSTORM.REPORT@NOAA.GOV...
POSTING TO THE NWS BUFFALO FACEBOOK PAGE...OR TWEET...USING THE
HASHTAG BUFWX

IN LAKE EFFECT SNOW THE WEATHER CAN VARY FROM LOCALLY HEAVY SNOW
IN NARROW BANDS TO CLEAR SKIES JUST A FEW MILES AWAY. IF YOU WILL
BE TRAVELING ACROSS THE REGION BE PREPARED FOR RAPID CHANGES IN
ROAD AND VISIBILITY CONDITIONS.

&&

$$
089 
WWUS41 KBUF 192355
WSWBUF

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE BUFFALO NY
755 PM EDT TUE MAR 19 2013

NYZ006>008-200800-
/O.CAN.KBUF.WS.W.0002.000000T0000Z-130320T0000Z/
/O.CON.KBUF.LE.W.0007.130320T0000Z-130321T2200Z/
OSWEGO-JEFFERSON-LEWIS-
INCLUDING THE CITIES OF...OSWEGO...WATERTOWN...LOWVILLE
755 PM EDT TUE MAR 19 2013

...WINTER STORM WARNING IS CANCELLED... 
...LAKE EFFECT SNOW WARNING REMAINS IN EFFECT UNTIL 6 PM EDT
THURSDAY...

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS CANCELLED THE WINTER
STORM WARNING. 

* LOCATIONS...EASTERN LAKE ONTARIO REGION WITH THE HEAVIEST SNOWS
  ON THE TUG HILL.

* TIMING...THROUGH LATE THURSDAY AFTERNOON.

* HAZARDS...HEAVY LAKE EFFECT SNOW.

* ACCUMULATIONS...6 TO 12 INCHES TONIGHT...WITH ADDITIONAL 12 TO
  18 INCHES WEDNESDAY AND WEDNESDAY NIGHT.

* IMPACTS...SNOW WILL RESULT IN HAZARDOUS TRAVEL CONDITIONS WITH 
  SNOW COVERED ROADS AND REDUCED VISIBILITY. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN LAKE EFFECT SNOW THE WEATHER CAN VARY FROM LOCALLY HEAVY SNOW
IN NARROW BANDS TO CLEAR SKIES JUST A FEW MILES AWAY. IF YOU WILL
BE TRAVELING ACROSS THE REGION BE PREPARED FOR RAPID CHANGES IN
ROAD AND VISIBILITY CONDITIONS.

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.

REPORT SNOW ACCUMULATIONS TO THE NATIONAL WEATHER SERVICE IN
BUFFALO BY SENDING AN EMAIL TO BUFSTORM.REPORT@NOAA.GOV...
POSTING TO THE NWS BUFFALO FACEBOOK PAGE...OR TWEET...USING THE
HASHTAG BUFWX

&&

$$

NYZ012-019-020-085-200800-
/O.CON.KBUF.LE.Y.0013.000000T0000Z-130321T1000Z/
WYOMING-CHAUTAUQUA-CATTARAUGUS-SOUTHERN ERIE-
INCLUDING THE CITIES OF...WARSAW...JAMESTOWN...OLEAN...
ORCHARD PARK...SPRINGVILLE
755 PM EDT TUE MAR 19 2013

...LAKE EFFECT SNOW ADVISORY REMAINS IN EFFECT UNTIL 6 AM EDT
THURSDAY...

* LOCATIONS...WYOMING...CATTARAUGUS...CHAUTAUQUA AND SOUTHERN 
  ERIE COUNTIES. MAINLY INLAND FROM THE LAKE ERIE SHORE. 

* TIMING...LATE THIS AFTERNOON THROUGH LATE WEDNESDAY NIGHT.

* HAZARDS...LAKE EFFECT SNOW.

* ACCUMULATIONS...3 TO 5 INCHES TONIGHT...2 TO 3 INCHES
  WEDNESDAY...AND 2 TO 4 INCHES WEDNESDAY NIGHT.

* IMPACTS...SNOW WILL RESULT IN HAZARDOUS TRAVEL CONDITIONS WITH 
  SNOW COVERED ROADS AND REDUCED VISIBILITY. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY IS NORMALLY ISSUED FOR A VARIETY OF
WINTER WEATHER CONDITIONS SUCH AS LIGHT SNOW...SLEET...AND
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.

REPORT SNOW AND ICE ACCUMULATION TO THE NATIONAL WEATHER SERVICE
IN BUFFALO BY SENDING AN EMAIL TO BUFSTORM.REPORT@NOAA.GOV...
POSTING TO THE NWS BUFFALO FACEBOOK PAGE...OR TWEET...USING THE
HASHTAG BUFWX

IN LAKE EFFECT SNOW THE WEATHER CAN VARY FROM LOCALLY HEAVY SNOW
IN NARROW BANDS TO CLEAR SKIES JUST A FEW MILES AWAY. IF YOU WILL
BE TRAVELING ACROSS THE REGION BE PREPARED FOR RAPID CHANGES IN
ROAD AND VISIBILITY CONDITIONS.

&&

$$

APFFEL
165 
WWUS41 KBUF 200102
WSWBUF

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE BUFFALO NY
902 PM EDT TUE MAR 19 2013

NYZ012-019-020-085-200915-
/O.UPG.KBUF.LE.Y.0013.000000T0000Z-130321T1000Z/
/O.EXB.KBUF.LE.W.0007.000000T0000Z-130321T1000Z/
WYOMING-CHAUTAUQUA-CATTARAUGUS-SOUTHERN ERIE-
INCLUDING THE CITIES OF...WARSAW...JAMESTOWN...OLEAN...
ORCHARD PARK...SPRINGVILLE
902 PM EDT TUE MAR 19 2013

...LAKE EFFECT SNOW WARNING IN EFFECT UNTIL 6 AM EDT THURSDAY...

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A LAKE EFFECT
SNOW WARNING...WHICH IS IN EFFECT UNTIL 6 AM EDT THURSDAY. THE
LAKE EFFECT SNOW ADVISORY IS NO LONGER IN EFFECT. 

* LOCATIONS...WYOMING...CATTARAUGUS...CHAUTAUQUA AND SOUTHERN ERIE
  COUNTIES. STEADIEST SNOWS IN THE BOSTON HILLS AND ALONG THE
  CHAUTAUQUA RIDGE...WITH LESSER ACCUMULATIONS ALONG THE IMMEDIATE
  LAKESHORE.

* TIMING...THROUGH LATE WEDNESDAY NIGHT.

* ACCUMULATIONS...4 TO 7 INCHES TONIGHT...2 TO 3 INCHES
  WEDNESDAY...AND 2 TO 4 INCHES WEDNESDAY NIGHT.

* WINDS...WEST 15 TO 25 MPH.

* VISIBILITIES...AS LOW AS A QUARTER MILE AT TIMES.

* IMPACTS...SNOW WILL RESULT IN HAZARDOUS TRAVEL CONDITIONS WITH
  SNOW COVERED ROADS AND REDUCED VISIBILITY. WORST CONDITIONS
  ACROSS THE BOSTON HILLS AND ALONG THE CHAUTAUQUA RIDGE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN LAKE EFFECT SNOW THE WEATHER CAN VARY FROM LOCALLY HEAVY SNOW
IN NARROW BANDS TO CLEAR SKIES JUST A FEW MILES AWAY. IF YOU WILL
BE TRAVELING ACROSS THE REGION BE PREPARED FOR RAPID CHANGES IN
ROAD AND VISIBILITY CONDITIONS.

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.

REPORT SNOW ACCUMULATION TO THE NATIONAL WEATHER SERVICE IN
BUFFALO BY SENDING AN EMAIL TO BUFSTORM.REPORT@NOAA.GOV...POSTING
TO THE NWS BUFFALO FACEBOOK PAGE...OR TWEET...USING THE HASHTAG
BUFWX

&&

$$

NYZ006>008-200915-
/O.CON.KBUF.LE.W.0007.000000T0000Z-130321T2200Z/
OSWEGO-JEFFERSON-LEWIS-
INCLUDING THE CITIES OF...OSWEGO...WATERTOWN...LOWVILLE
902 PM EDT TUE MAR 19 2013

...LAKE EFFECT SNOW WARNING REMAINS IN EFFECT UNTIL 6 PM EDT
THURSDAY...

* LOCATIONS...EASTERN LAKE ONTARIO REGION WITH THE HEAVIEST 
  SNOWS ON THE TUG HILL. 

* TIMING...THROUGH EARLY THURSDAY EVENING.

* HAZARDS...HEAVY LAKE EFFECT SNOW.

* ACCUMULATIONS...6 TO 12 INCHES TONIGHT...WITH AN ADDITIONAL 12
  TO 18 INCHES WEDNESDAY AND WEDNESDAY NIGHT.

* IMPACTS...SNOW WILL RESULT IN HAZARDOUS TRAVEL CONDITIONS WITH 
  SNOW COVERED ROADS AND REDUCED VISIBILITY. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN LAKE EFFECT SNOW THE WEATHER CAN VARY FROM LOCALLY HEAVY SNOW
IN NARROW BANDS TO CLEAR SKIES JUST A FEW MILES AWAY. IF YOU WILL
BE TRAVELING ACROSS THE REGION BE PREPARED FOR RAPID CHANGES IN
ROAD AND VISIBILITY CONDITIONS.

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.

REPORT SNOW ACCUMULATIONS TO THE NATIONAL WEATHER SERVICE IN
BUFFALO BY SENDING AN EMAIL TO BUFSTORM.REPORT@NOAA.GOV...
POSTING TO THE NWS BUFFALO FACEBOOK PAGE...OR TWEET...USING THE
HASHTAG BUFWX

&&

$$

NYZ021-200915-
/O.NEW.KBUF.LE.Y.0014.130320T0102Z-130320T1500Z/
ALLEGANY-
INCLUDING THE CITY OF...WELLSVILLE
902 PM EDT TUE MAR 19 2013

...LAKE EFFECT SNOW ADVISORY IN EFFECT UNTIL 11 AM EDT
WEDNESDAY...

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A LAKE EFFECT
SNOW ADVISORY...WHICH IS IN EFFECT UNTIL 11 AM EDT WEDNESDAY. 

* LOCATIONS...FAR NORTHERN PORTIONS OF ALLEGANY COUNTY.

* TIMING...THROUGH LATE WEDNESDAY MORNING.

* ACCUMULATIONS...3 TO 5 INCHES.

* VISIBILITIES...BELOW A HALF MILE AT TIMES.

* IMPACTS...SNOW WILL RESULT IN HAZARDOUS TRAVEL CONDITIONS WITH 
  SNOW COVERED ROADS AND REDUCED VISIBILITY. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN LAKE EFFECT SNOW THE WEATHER CAN VARY FROM LOCALLY HEAVY SNOW
IN NARROW BANDS TO CLEAR SKIES JUST A FEW MILES AWAY. IF YOU WILL
BE TRAVELING ACROSS THE REGION BE PREPARED FOR RAPID CHANGES IN
ROAD AND VISIBILITY CONDITIONS.

STAY TUNED TO NOAA WEATHER RADIO OR YOUR FAVORITE SOURCE OF
WEATHER INFORMATION FOR THE LATEST UPDATES. ADDITIONAL DETAILS
CAN ALSO BE FOUND AT WWW.WEATHER.GOV/BUFFALO.

REPORT SNOW ACCUMULATION TO THE NATIONAL WEATHER SERVICE IN
BUFFALO BY SENDING AN EMAIL TO BUFSTORM.REPORT@NOAA.GOV...POSTING
TO THE NWS BUFFALO FACEBOOK PAGE...OR TWEET...USING THE HASHTAG
BUFWX

&&

$$

APFFEL

What forecasters said that day

The local office's own words before this lake effect snow advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Buffalo, NY wrote its last area forecast discussion before this lake effect snow advisory went out at Mar 18, 11:37 PM EDT, 4 hours 56 minutes earlier.

Area forecast discussion, Mar 18, 11:37 PM EDT, 4 hours 56 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BUFFALO NY
1137 PM EDT MON MAR 18 2013

.SYNOPSIS...
A WINTRY MIX OF PRECIPITATION WILL CONTINUE INTO THE OVERNIGHT
HOURS ACROSS WESTERN NEW YORK...WHILE SNOW CONTINUES ACROSS THE
NORTH COUNTY. LATE TONIGHT AND TOMORROW AN OCCLUDED FRONT WILL
CROSS THE REGION...WITH A REINFORCING SHOT OF COLD AIR AND BELOW
AVERAGE TEMPERATURES THEN FOLLOWING FOR TUESDAY ON THROUGH THE
REMAINDER OF THE WEEK. WITH THE ARRIVAL OF THE COLDER AIR...
FREQUENT SNOW SHOWERS AND AREAS OF LAKE EFFECT SNOW WILL DEVELOP
EAST OF THE LAKES.

&&

.NEAR TERM /THROUGH TUESDAY/...
AS OF 1130 PM...HAVE DROPPED THE WIND ADVISORY FOR CHAUTAUQUA AND
SOUTHERN ERIE COUNTIES...AS THE EXPECTED STRONGER WINDS IN THESE
AREAS HAVE NEVER REALLY MATERIALIZED...AND THE WINDOW FOR THESE IS
JUST ABOUT TO CLOSE AS WINDS ALOFT WILL BE STEADILY WEAKENING THE
NEXT FEW HOURS.

OTHERWISE...WIDESPREAD PRECIPITATION CONTINUES FROM THE GENESEE
VALLEY EASTWARD ACROSS THE NORTH COUNTRY...WITH MORE SPOTTY LIGHT
PRECIPITATION FOUND BACK ACROSS EXTREME FAR WESTERN NEW YORK. SURFACE
OBS SHOW THAT PTYPE IS STILL IN THE FORM OF SNOW ACROSS THE NORTH
COUNTRY ...WITH A VARIETY OF MIXED PRECIPITATION THEN COVERING
THE REMAINDER OF THE REGION...WITH THE IMMEDIATE LAKESHORE REGIONS
OF FAR WESTERN NEW YORK HAVING FINALLY GONE OVER TO PLAIN RAIN
THANKS TO THE EXPECTED SOUTHERLY/SOUTHEASTERLY DOWNSLOPE FLOW.

ALL OF THIS IS FOUND IN ADVANCE OF A SECONDARY SURFACE WAVE
OVER SOUTHERN LAKE HURON AND A TRAILING OCCLUDED FRONT THAT
EXTENDS SOUTHEASTWARD TO THE OHIO/PENNSYLVANIA BORDER...WHICH
CONTINUES TO GENERATE ANOTHER SWATH OF LIGHTER PRECIPITATION
IMMEDIATELY UPSTREAM OF OUR CWA.

THROUGH THE EARLY OVERNIGHT HOURS...EXPECT RELATIVELY HIGH
PRECIPITATION CHANCES TO REMAIN IN PLACE ACROSS THE ENTIRE REGION
IN ADVANCE OF THE APPROACHING OCCLUDED FRONT...THOUGH OVER WESTERN
NEW YORK ANY PRECIP WILL TEND TO BE MUCH LIGHTER THAN THAT FALLING
FURTHER TO THE EAST ACROSS THE FINGER LAKES AND NORTH COUNTRY. AFTER
ABOUT 06Z-07Z...THE OCCLUDED FRONT WILL BEGIN PUSHING ACROSS THE
REGION...WITH PRECIP CHANCES FALLING OFF TO THE CHANCE RANGE
FOLLOWING ITS PASSAGE AS DRY SLOTTING WORKS IN ALOFT.

IN TERMS OF PTYPE...EXPECT MAINLY SNOW TO CONTINUE ACROSS THE
NORTH COUNTRY...WITH MIXED PRECIPITATION AND LIGHT RAIN/DRIZZLE
FOUND ACROSS THE REMAINDER OF THE AREA...WITH THE MAJORITY OF THE
LIGHT RAIN/DRIZZLE FOUND ALONG THE LAKE PLAINS AS TEMPS CONTINUE
TO WARM IN ADVANCE OF THE APPROACHING OCCLUDED FRONT.

HAVE ADJUSTED THE FORECAST TO KEEP IT IN LINE WITH THE ABOVE
OBSERVATIONAL AND EXPECTED TRENDS. RELEVANT PORTIONS OF THE MID
AFTERNOON NEAR TERM DISCUSSION FOLLOW BELOW...

TOTAL SNOW AND SLEET ACCUMULATIONS FOR THE NIGHT WILL BE 2 TO 4
INCHES WHERE CURRENT ADVISORIES ARE IN EFFECT. MUCH OF THE NIAGARA
FRONTIER FROM BUFFALO EAST TO ROCHESTER WILL JUST SEE AN INCH OR
TWO OF SNOW. THE LARGER THREAT FOR AREAS SOUTH OF THE THRUWAY WILL
BE WITH ICE ACCUMULATIONS FROM FREEZING RAIN. ONE TO TWO TENTHS OF
ICE ALONG WITH THE GUSTY WINDS WOULD POSE A RISK FOR DOWNED TREES
AND POWERLINES.

THE FORECAST FOR THE NORTH COUNTY HAS CHANGES FROM EARLIER FORECAST
PACKAGES. IT NOW APPEARS AS THE AIR MASS IN THIS REGION WILL REMAIN
SUB-FREEZING. THERE FOR ALL OR THE MAJORITY OF PRECIPITATION WILL
FALL IN THE FORM OF SNOW. A MIX OF WPC AND SREF QPF GUIDANCE YIELDS
NEAR AND INCH OF LIQUID EQUIVALENT PRECIPITATION TONIGHT THROUGH
TOMORROW. RESULTS FROM THE ROEBBER TECHNIQUE USED FOR ESTIMATING
SNOW RATIOS SHOW MODEL ESTIMATES OF BETWEEN 8:1 AND 15:1. THIS WOULD
YIELD 8 TO 15 INCHES OF SNOW ACROSS THE THE TUG HILL REGION WITH
LOWER AMOUNTS FOUND AT LOWER ELEVATIONS DUE TO SOME DOWNSLOPING
EFFECTS. SREF PLUME DIAGRAMS FOR KRME SHOW 8 TO 9 INCHES OF SNOW
POSSIBLE THROUGH TOMORROW. UPGRADED NORTHERN TIER COUNTIES TO A
WINTER STORM WARNING WITH 8 TO 12 INCHES OF SNOW EXPECTED TONIGHT
AND TOMORROW FOCUSED ON THE TOP OF THE TUG HILL. THIS INCLUDES MUCH
OF SOUTHERN LEWIS...NORTHEASTERN OSWEGO AND SOUTHEASTERN JEFFERSON
COUNTIES. OUTSIDE OF THESE AREAS EXPECT MORE TOWARD ADVISORY LEVEL
SNOW AMOUNTS AS LOW A 3 INCHES FOR WATERTOWN TO 6 TO 7 INCHES FOR
OSWEGO AND FULTON AND PORTIONS OF NORTHERN JEFFERSON COUNTY. IN
ADDITION TO TO THE SNOW FALL WIND GUSTS IN THE RANGE OF 30 TO 50 MPH
WILL BRING BLOWING SNOW OVERNIGHT TO THE REGION. A WIND ADVISORY IS
IN EFFECT THROUGH THE OVERNIGHT.

THROUGH TOMORROW WE WILL SEE THE NEGATIVITY TILTED UPPER TROUGH CUT
OFF INTO A CLOSED UPPER LOW OVER THE UPPER GREAT LAKES. AT THE
SURFACE WE WILL SEE THE SURFACE LOW OVER MINNESOTA TODAY SHIFT EAST
TO EASTERN LAKE SUPERIOR WHILE THE OHIO VALLEY SURFACE LOW SHIFTS
OFF THE SOUTHERN NEW ENGLAND COAST AND DEPENDS. DURING THIS
TRANSITION OUR FORECAST AREA WILL SEE AN OCCLUDED SURFACE FRONT
CROSS FROM WEST TO EAST THROUGH THE DAY. THIS WILL BRING A
REINFORCING SHOT OF COLDER AIR WHICH WILL CHANGE ANY AREAS WHICH SAW
PLAIN RAIN OVERNIGHT BACK TO SNOW. ONCE THIS FRONT PASSES EAST MUCH
OF THE STEADIER SNOW WILL TAPER OFF TO JUST SCATTERED SNOW SHOWERS.
THE WESTERLY COLD ADVECTION FLOW BEHIND THE OCCLUDED FRONT WILL KEEP
TEMPS SLOWLY FALLING THROUGH THE DAY. BY LATE AFTERNOON TEMPERATURES
AT 850MB WILL COOL TO -10 TO -13C WHICH SHOULD BE COLD ENOUGH FOR
LAKE EFFECT SNOWS TO BEGIN TO GET ORGANIZED.

&&

.SHORT TERM /TUESDAY NIGHT THROUGH THURSDAY NIGHT/...
DESPITE THE FACT THAT SPRING WILL OFFICIALLY START AT THE BEGINNING
OF THIS PERIOD (7:02 AM EDT WED)...OLD MAN WINTER WILL PERSIST
ACROSS THE REGION. TEMPERATURES WILL REMAIN 10...TO AT TIMES 15...
DEGREES F BELOW NORMAL AS A HIGH LATITUDE BLOCKING PATTERN WILL
STILL BE IN PLACE.

THE BLOCKING PATTERN CONSISTS OF AN ANOMALOUSLY STRONG (+4 STD) H5
RIDGE OVER GREENLAND THAT HAS BEEN HOLDING A POLAR VORTEX OVER
EASTERN CANADA...THUS DELAYING ANY SIGNS OF SPRING. THIS PATTERN
WILL BE IN PLACE ON WEDNESDAY...BUT AS WE TOWARDS THE END OF THE
WORK WEEK...THE RIDGE WILL RETROGRADE BACK ACROSS EASTERN CANADA.
THIS WILL CUT OFF THE SUPPLY OF ARCTIC AIR AND ALLOW OUR AIRMASS TO
GRADUALLY MODIFY AS WE HEAD INTO THE LONG TERM PORTION OF THE
FORECAST (SEE BELOW). THE DETAILS...

A STACKED POLAR VORTEX BASED OVER SOUTHERN ONTARIO TUESDAY NIGHT
WILL SLOWLY WOBBLE TO THE EAST ACROSS TO NEW ENGLAND BY FRIDAY
MORNING. SEVERAL SHORTWAVES DISPLAYING THE FUJIWHARA EFFECT WILL
ROTATE ABOUT THE CORE OF THE VORTEX AND PERIODICALLY ENHANCE LAKE
SNOWS PRODUCED BY -12C H85 AIR CIRCULATING ACROSS THE NEARLY ICE
FREE WATERS OF BOTH LAKES ERIE AND ONTARIO. THIS WILL GENERATE LAKE
INDUCED CAPES OF A FEW HUNDRED J/KG WHILE A CAP WILL RANGE FROM
ABOUT 8K FT OVER LK ERIE TO 10K OVER LK ONTARIO. THESE ARE FAIRLY
IMPRESSIVE VALUES GIVEN THE TIME OF YEAR. MEANWHILE...THE FLOW WILL
GENERALLY BE FROM THE WEST WITH A WEALTH OF SYNOPTIC MOISTURE IN
THE DENDRITIC GROWTH ZONE...SO LAKE SNOWS WILL BE CONCENTRATED
ACROSS THE WESTERN SOUTHERN TIER AND TUG HILL REGIONS. A LIMITING
FACTOR IN SNOW ACCUMULATIONS WILL BE THE STRONG DIURNAL EFFECTS THAT
WILL HELP TO MAKE ANY ORGANIZED OVERNIGHT BANDS MORE CELLULAR BY
DAY.

SPEAKING OF ACCUMULATIONS...THERE WILL BE THE POTENTIAL FOR 12 HOUR
SNOWFALL AMOUNTS TO EXCEED 6 INCHES EAST OF LAKE ONTARIO...WHILE
SOMEWHAT LESSER AMOUNTS SHOULD BE FOUND AS A RESULT OF A SHORTER
FETCH DOWNWIND OF LK ERIE. WILL KEEP THE LAKE SNOW WATCH IN EFFECT
FOR THE TUG HILL REGION...WHILE UPSLOPE FROM THE CHAUTAUQUA RIDGE
WILL LIKELY HELP TO PRODUCE ADVISORY CRITERIA SNOWFALL.

ELSEWHERE...A COLD MOISTURE RICH CYCLONIC FLOW WILL KEEP SCATTERED
LIGHT SNOW SHOWERS AND FLURRIES OVER THE REGION WITH TEMPERATURES
MORE TYPICAL OF MID JANUARY THAN THE START OF SPRING. DURING THIS
PERIOD LAST YEAR...OUR TEMPERATURES WERE AT RECORD HIGH LEVELS SOME
30 TO 40 DEG ABOVE NORMAL...AND THIS YEAR THEY WILL BE 10 TO 15 DEG
BELOW. SUCH IS SPRINGTIME IN THE GREAT LAKES REGION.

&&

.LONG TERM /FRIDAY THROUGH MONDAY/...
A WEAK SHORT WAVE ROTATING WITHIN THE UPPER LEVEL TROUGH PARKED OVER
SOUTHEAST CANADA AND THE LOWER GREAT LAKES IS FORECAST TO MOVE
THROUGH THE AREA FRIDAY AND FRIDAY NIGHT. THIS SYSTEM WILL BRING A
PERIOD OF SNOW SHOWERS AND LAKE ENHANCED SNOWS TO THE FAVORED AREAS
SOUTHEAST OF LAKE ERIE AND ONTARIO. AFTER THIS SYSTEM MOVES THROUGH
MID-LEVEL DRYING AND 850H TEMPERATURES START WARMING FROM -13C TO
-9C BY LATE SATURDAY. SO ANY LINGERING LAKE EFFECT SNOWS DOWN WIND
OF THE LAKES WILL LIKELY COME TO A SLOW END WITH MAINLY JUST SOME
LEFT OVER FLURRIES. TEMPERATURES DURING THIS PERIOD WILL START OUT
BELOW NORMAL BUT WILL GRADUALLY CLIMB TO NEAR NORMAL BY MONDAY AS
THE TROUGH OVER THE REGION SLOWLY WEAKENS AND MODIFIES.

&&

.AVIATION /04Z TUESDAY THROUGH SATURDAY/...
A MIXED BAG OF PRECIPITATION WILL CONTINUE ACROSS THE REGION TONIGHT
AS LOW PRESSURE LIFTS THROUGH THE CENTRAL GREAT LAKES. ACROSS
WESTERN NY...SNOW WILL CHANGE TO A MIX OF SLEET...RAIN AND FREEZING
RAIN DEPENDING ON SURFACE TEMPERATURE. ALONG THE LOWER ELEVATIONS
FROM KDKK TO KBUF TO KROC SURFACE TEMPS SHOULD WARM ENOUGH TO CHANGE
PRECIPITATION TO JUST RAIN FOR A FEW HOURS BETWEEN ABOUT 03Z-06Z.
AFTER THAT...THE AIRMASS GROWS COLDER AGAIN WITH ANY LINGERING
PRECIPITATION CHANGING BACK TO SNOW. ACROSS THE INTERIOR SOUTHERN
TIER INCLUDING KJHW...SURFACE TEMPS WILL REMAIN AT OR BELOW FREEZING
WITH SLEET AND FREEZING RAIN CHANGING BACK TO SNOW LATER TONIGHT.
FINALLY...EAST OF LAKE ONTARIO INCLUDING KART...TEMPERATURES ALOFT
AND AT THE SURFACE WILL REMAIN COLD ENOUGH TO SUPPORT ALL SNOW.

VSBY WILL GENERALLY BE IFR IN AREAS OF SNOW...AND A MIX OF MVFR/VFR
IN AREAS OF SLEET...FREEZING RAIN...AND RAIN. CIGS WILL BE A MIX OF
MVFR AND VFR...KEPT UP SOME BY SOUTHEAST TO SOUTH DOWNSLOPE WINDS
ACROSS LOWER ELEVATIONS. ACROSS THE HIGHER TERRAIN...AREAS OF IFR
CIGS ARE MORE LIKELY WITHOUT THE BENEFIT OF DOWNSLOPE WINDS.

LATE TONIGHT AND INTO TUESDAY PRECIPITATION WILL END FROM WEST TO
EAST AS AN OCCLUDED FRONT MOVES ACROSS THE REGION. THE DRY SLOT THAT
FOLLOWS WILL ALLOW FOR A PERIOD OF MVFR TO VFR CONDITIONS. LATER ON
TUESDAY WRAP AROUND MOISTURE AND COLD AIR ALOFT WILL
ARRIVE...BRINGING INCREASING CHANCES OF SNOW SHOWERS AND A RETURN TO
MVFR/IFR VSBY. WINDS WILL ALSO GET QUITE BLUSTERY ON TUESDAY...WITH
GUSTS IN THE 30-35 KNOT RANGE ESPECIALLY NORTHEAST OF LAKE ERIE.

FINALLY...LOW LEVEL WIND SHEAR WILL CONTINUE THROUGH 06Z-08Z AS A
STRONG LOW LEVEL JET CROSSES THE REGION. AFTER THAT...WINDS ALOFT
WILL STILL REMAIN STRONG BUT WILL BE BETTER ALIGNED AND COUPLED WITH
THE SURFACE WINDS...BRINGING LESS RISK OF SHEAR.

OUTLOOK...
WEDNESDAY AND THURSDAY...MVFR/IFR IN SNOW SHOWERS AND LAKE EFFECT
SNOW.
FRIDAY...MVFR WITH LIGHT SNOW SHOWERS.
SATURDAY...MAINLY VFR.

&&

.MARINE...
BRISK SOUTHEASTERLY AND SOUTHERLY WINDS WILL CONTINUE OVERNIGHT AHEAD
OF A STORM SYSTEM OVER THE CENTRAL GREAT LAKES...THEN WILL VEER TO
SOUTHWESTERLY AND THEN WESTERLY ON TUESDAY FOLLOWING THE PASSAGE
OF AN OCCLUDED FRONT. SMALL CRAFT ADVISORIES HAVE BEEN EXTENDED
THROUGH TUESDAY NIGHT TO COVER BOTH PERIODS OF GUSTY WINDS. GUSTS
MAY OCCASIONALLY APPROACH GALES BUT NOT REMAIN SUSTAINED FOR ANY
LONGER PERIOD OF TIME.

&&

.BUF WATCHES/WARNINGS/ADVISORIES...
NY...LAKE EFFECT SNOW WATCH FROM TUESDAY EVENING THROUGH WEDNESDAY
     AFTERNOON FOR NYZ006>008.
     WINTER STORM WARNING UNTIL 8 PM EDT TUESDAY FOR NYZ006>008.
     WIND ADVISORY UNTIL 8 AM EDT TUESDAY FOR NYZ006>008.
     WINTER WEATHER ADVISORY UNTIL 11 AM EDT TUESDAY FOR NYZ004-005-
     014.
     WINTER WEATHER ADVISORY UNTIL 6 AM EDT TUESDAY FOR NYZ012-013-
     019>021-085.
MARINE...SMALL CRAFT ADVISORY UNTIL 5 AM EDT WEDNESDAY FOR LEZ020-040-
         041.
         SMALL CRAFT ADVISORY UNTIL 5 AM EDT WEDNESDAY FOR
         LOZ042>045.

&&

SYNOPSIS...JJR/SMITH
NEAR TERM...JJR/SMITH
SHORT TERM...RSH
LONG TERM...AR
AVIATION...HITCHCOCK
MARINE...JJR/SMITH
Hazardous weather outlook, Mar 18, 11:39 PM EDT, 4 hours 54 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BUFFALO NY
1139 PM EDT MON MAR 18 2013

NYZ006>008-200345-
OSWEGO-JEFFERSON-LEWIS-
1139 PM EDT MON MAR 18 2013

...WINTER STORM WARNING IN EFFECT UNTIL 8 PM EDT TUESDAY...
...WIND ADVISORY IN EFFECT UNTIL 8 AM EDT TUESDAY...
...LAKE EFFECT SNOW WATCH IN EFFECT FROM TUESDAY EVENING THROUGH
WEDNESDAY AFTERNOON...

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 STORM WARNING.
   WIND ADVISORY.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY.

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

   WINTER STORM WARNING.
   WIND ADVISORY.
   LAKE EFFECT SNOW WATCH.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

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

NYZ004-005-014-200345-
WAYNE-NORTHERN CAYUGA-ONTARIO-
1139 PM EDT MON MAR 18 2013

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 11 AM EDT TUESDAY...

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.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY.

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

NYZ001>003-010-011-200345-
NIAGARA-ORLEANS-MONROE-NORTHERN ERIE-GENESEE-
1139 PM EDT MON MAR 18 2013

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

.DAY ONE...TONIGHT.

THE PROBABILITY OF WIDESPREAD HAZARDOUS WEATHER IS LOW.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY.

WINDS WILL INCREASE BEHIND A FRONTAL BOUNDARY...WITH WIND GUSTS OF
40 TO 45 MPH LIKELY TUESDAY AFTERNOON AND EVENING.

.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

NYZ012-013-019>021-085-200345-
WYOMING-LIVINGSTON-CHAUTAUQUA-CATTARAUGUS-ALLEGANY-SOUTHERN ERIE-
1139 PM EDT MON MAR 18 2013

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 6 AM EDT TUESDAY...

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.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY.

WINDS WILL INCREASE BEHIND A FRONTAL BOUNDARY...WITH WIND GUSTS OF
40 TO 45 MPH LIKELY TUESDAY AFTERNOON AND EVENING.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

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

LEZ020-040-041-LOZ042>045-062>065-SLZ022-024-200345-
UPPER NIAGARA RIVER AND BUFFALO HARBOR-
LAKE ERIE NEARSHORE WATERS FROM RIPLEY TO DUNKIRK-
LAKE ERIE NEARSHORE WATERS FROM DUNKIRK TO BUFFALO-
LAKE ONTARIO NEARSHORE WATERS FROM THE NIAGARA RIVER TO HAMLIN BEACH-
LAKE ONTARIO NEARSHORE WATERS FROM HAMLIN BEACH TO SODUS BAY-
LAKE ONTARIO NEARSHORE WATERS FROM SODUS BAY TO MEXICO BAY-
LAKE ONTARIO NEARSHORE WATERS FROM MEXICO BAY TO THE SAINT LAWRENCE
RIVER-
LAKE ONTARIO OPEN WATERS FROM THE NIAGARA RIVER TO HAMLIN BEACH-
LAKE ONTARIO OPEN WATERS FROM HAMLIN BEACH TO SODUS BAY-
LAKE ONTARIO OPEN WATERS FROM SODUS BAY TO MEXICO BAY-
LAKE ONTARIO OPEN WATERS FROM MEXICO BAY TO THE SAINT LAWRENCE RIVER-
SAINT LAWRENCE RIVER FROM CAPE VINCENT TO OGDENSBURG-
SAINT LAWRENCE RIVER FROM OGDENSBURG TO SAINT REGIS-
1139 PM EDT MON MAR 18 2013

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

.DAY ONE...TONIGHT.

THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY.

THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

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

In the hours before

Special weather statement, Mar 18, 10:48 PM EDT, 5 hours 45 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
1048 PM EDT MON MAR 18 2013

NYZ012-019>021-085-190430-
WYOMING-CHAUTAUQUA-CATTARAUGUS-ALLEGANY-SOUTHERN ERIE-
INCLUDING THE CITIES OF...WARSAW...JAMESTOWN...OLEAN...
WELLSVILLE...ORCHARD PARK...SPRINGVILLE
1048 PM EDT MON MAR 18 2013

...SLIPPERY TRAVEL AT TIMES TONIGHT...

A MIX OF SNOW...FREEZING RAIN...AND SLEET OVER ALLEGANY AND
EASTERN WYOMING COUNTY WILL TAPER OFF FROM WEST TO EAST THROUGH
1130 PM. A LULL IN PRECIPITATION WILL GIVE WAY TO INCREASING
AMOUNTS OF FREEZING DRIZZLE AND LIGHT FREEZING RAIN OVERNIGHT.
UNTREATED ROADS WILL REMAIN VERY SLIPPERY IN SOME LOCATIONS.
MOTORISTS SHOULD USE CAUTION AND ALLOW EXTRA TIME TO REACH YOUR
DESTINATION. ROADS THAT APPEAR JUST WET MAY IN FACT BE ICY.

ALONG THE LAKE ERIE SHORE INCLUDING THE NEW YORK STATE THRUWAY...
TEMPERATURES HAVE RISEN ABOVE FREEZING WITH JUST PLAIN RAIN OR
LIGHT DRIZZLE.

NYZ001-002-010-011-190430-
NIAGARA-ORLEANS-NORTHERN ERIE-GENESEE-
INCLUDING THE CITIES OF...NIAGARA FALLS...MEDINA...BUFFALO...
BATAVIA
1048 PM EDT MON MAR 18 2013

...MIXED PRECIPITATION TAPERING OFF...

A MIX OF RAIN...SLEET...AND WET SNOW WILL CONTINUE TO TAPER OFF
FROM WEST TO EAST AND BE REPLACED BY DRIZZLE AND VERY LIGHT RAIN
THROUGH THE MIDNIGHT HOUR. A FEW POCKETS OF FREEZING RAIN OR
FREEZING DRIZZLE ARE ALSO POSSIBLE IN SOME SPOTS WHERE
TEMPERATURES REMAIN BELOW FREEZING.

SOME UNTREATED ROADS WILL REMAIN SLUSHY AND SLIPPERY FROM THE
WINTRY MIX EARLIER THIS EVENING. SOME ROADS THAT APPEAR JUST WET
MAY IN FACT BE ICY. TEMPERATURES HAVE CLIMBED ABOVE FREEZING IN
THE BUFFALO METRO AREA...SO THE GREATEST POTENTIAL FOR SLIPPERY
TRAVEL IS IN AREAS WELL NORTH AND EAST OF BUFFALO.

NYZ003>005-013-014-190430-
MONROE-WAYNE-NORTHERN CAYUGA-LIVINGSTON-ONTARIO-
INCLUDING THE CITIES OF...ROCHESTER...NEWARK...FAIR HAVEN...
GENESEO...CANANDAIGUA
1048 PM EDT MON MAR 18 2013

...SNOW AND SLEET WILL CONTINUE TO PRODUCE SLICK TRAVEL...

A MIX OF SNOW AND SLEET WILL CONTINUE THROUGH THE MIDNIGHT HOUR
ACROSS THE GENESEE VALLEY...WESTERN FINGER LAKES...AND COUNTIES
ALONG THE SOUTHEAST SHORE OF LAKE ONTARIO. ADDITIONAL SNOW AMOUNTS
OF A HALF INCH TO AN INCH ARE EXPECTED THROUGH 1230 AM IN SOME
LOCATIONS. SOME FREEZING RAIN MAY ALSO MIX IN AT TIMES MAINLY
SOUTH OF THE THRUWAY.

UNTREATED ROADS WILL BE SLUSHY...SNOW COVERED AND SLIPPERY IN MANY
LOCATIONS. MOTORISTS SHOULD USE CAUTION AND ALLOW EXTRA TIME TO
REACH YOUR DESTINATION.

NYZ006>008-190430-
OSWEGO-JEFFERSON-LEWIS-
INCLUDING THE CITIES OF...OSWEGO...WATERTOWN...LOWVILLE
1048 PM EDT MON MAR 18 2013

...SNOW WILL BECOME HEAVIER TOWARDS MIDNIGHT...

A LARGE AREA OF LIGHT TO MODERATE SNOW ACROSS THE EASTERN LAKE
ONTARIO REGION WILL PICK UP IN INTENSITY TOWARDS MIDNIGHT.
SNOWFALL RATES WILL INCREASE TO A HALF INCH TO AN INCH PER HOUR
OVERNIGHT. ROADS WILL BE SNOW COVERED AND SLIPPERY. MOTORISTS
SHOULD USE CAUTION AND ALLOW EXTRA TIME TO REACH YOUR DESTINATION.

HITCHCOCK
Special weather statement, Mar 19, 12:43 AM EDT, 3 hours 50 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
1243 AM EDT TUE MAR 19 2013

NYZ012-019>021-085-190645-
WYOMING-CHAUTAUQUA-CATTARAUGUS-ALLEGANY-SOUTHERN ERIE-
INCLUDING THE CITIES OF...WARSAW...JAMESTOWN...OLEAN...
WELLSVILLE...ORCHARD PARK...SPRINGVILLE
1243 AM EDT TUE MAR 19 2013

...SLIPPERY TRAVEL AT TIMES OVERNIGHT...

FREEZING DRIZZLE AND LIGHT FREEZING RAIN WILL CONTINUE OVERNIGHT.
UNTREATED ROADS WILL REMAIN VERY SLIPPERY IN SOME LOCATIONS.
MOTORISTS SHOULD USE CAUTION AND ALLOW EXTRA TIME TO REACH YOUR
DESTINATION. ROADS THAT APPEAR JUST WET MAY IN FACT BE ICY.

ALONG THE LAKE ERIE SHORE INCLUDING THE NEW YORK STATE THRUWAY...
TEMPERATURES WILL REMAIN ABOVE FREEZING WITH JUST PLAIN RAIN OR
LIGHT DRIZZLE.

NYZ003-013-190645-
MONROE-LIVINGSTON-
INCLUDING THE CITIES OF...ROCHESTER...GENESEO
1243 AM EDT TUE MAR 19 2013

...MIXED PRECIPITATION TAPERING OFF...

A MIX OF RAIN...SLEET...AND WET SNOW WILL CONTINUE TO TAPER OFF
FROM WEST TO EAST AND BE REPLACED BY DRIZZLE AND VERY LIGHT RAIN
THROUGH THE EARLY OVERNIGHT HOURS. A FEW POCKETS OF FREEZING RAIN
OR FREEZING DRIZZLE ARE ALSO POSSIBLE IN SOME SPOTS WHERE
TEMPERATURES REMAIN BELOW FREEZING.

SOME UNTREATED ROADS WILL REMAIN SLUSHY AND SLIPPERY FROM THE
WINTRY MIX EARLIER. SOME ROADS THAT APPEAR JUST WET MAY IN FACT
BE ICY. TEMPERATURES HAVE CLIMBED ABOVE FREEZING IN THE ROCHESTER
METRO AREA...SO THE GREATEST POTENTIAL FOR SLIPPERY TRAVEL IS IN
AREAS WELL EAST OF ROCHESTER OR WELL SOUTH OF THE THRUWAY.

NYZ004-005-014-190645-
WAYNE-NORTHERN CAYUGA-ONTARIO-
INCLUDING THE CITIES OF...NEWARK...FAIR HAVEN...CANANDAIGUA
1243 AM EDT TUE MAR 19 2013

...SNOW AND SLEET WILL CONTINUE TO PRODUCE SLICK TRAVEL...

A MIX OF SNOW AND SLEET WILL CONTINUE THROUGH THE EARLY OVERNIGHT
HOURS ACROSS THE WESTERN FINGER LAKES...AND COUNTIES ALONG THE
SOUTHEAST SHORE OF LAKE ONTARIO. ADDITIONAL SNOW AMOUNTS OF A HALF
INCH TO AN INCH ARE EXPECTED THROUGH 230 AM IN SOME LOCATIONS.
SOME FREEZING RAIN MAY ALSO MIX IN AT TIMES MAINLY SOUTH OF THE
THRUWAY.

UNTREATED ROADS WILL BE SLUSHY...SNOW COVERED AND SLIPPERY IN MANY
LOCATIONS. MOTORISTS SHOULD USE CAUTION AND ALLOW EXTRA TIME TO
REACH YOUR DESTINATION.

NYZ006>008-190645-
OSWEGO-JEFFERSON-LEWIS-
INCLUDING THE CITIES OF...OSWEGO...WATERTOWN...LOWVILLE
1243 AM EDT TUE MAR 19 2013

...SNOW WILL CONTINUE OVERNIGHT...

MODERATE TO OCCASIONALLY HEAVY SNOW WILL CONTINUE ACROSS THE
EASTERN LAKE ONTARIO REGION THROUGH THE EARLY OVERNIGHT HOURS.
SNOWFALL RATES UP TO AN INCH PER HOUR WILL BE POSSIBLE. ROADS
WILL BE SNOW COVERED AND SLIPPERY. MOTORISTS SHOULD USE CAUTION
AND ALLOW EXTRA TIME TO REACH YOUR DESTINATION.

TMA

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 19, 4:33 AM EDTLake Effect Snow WarningBUFCattaraugus, Chautauqua, Erie, Jefferson, Lewis, Oswego and 1 more3 days

Nearby

Lake Effect Snow Advisories in New York, 2013Every lake effect snow advisory in 2013

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.