Alert archive / New York / Winter Storm Watches in 2011

Winter Storm Watch 3, NWS Buffalo, NY

February 23, 201116 counties in New York

NWS Buffalo, NY issued this winter storm watch at Feb 23, 2011, 3:30 PM EST for 16 counties in New York. It took effect at Feb 25, 2011, 4:00 AM EST. It was in force for .

The area

The counties it named.

The facts

Issued
Feb 23, 2011, 3:30 PM EST (20:30 UTC)
In effect from
Feb 25, 2011, 4:00 AM EST
Expired
Feb 24, 2011, 1:26 PM EST
In force
Issued by
NWS Buffalo, NY

Counties Allegany County, NY, Cattaraugus County, NY, Cayuga County, NY, Chautauqua County, NY, Erie County, NY, Genesee County, NY, Jefferson County, NY, Lewis County, NY, Livingston County, NY, Monroe County, NY, Niagara County, NY, Ontario County, NY, Orleans County, NY, Oswego County, NY, Wayne County, NY, Wyoming County, NY

The radar

The Buffalo radar (KBUF), 90 km from the middle of the area, began a volume at 20:28 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 8.5 hours before the alert went out and 87 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Buffalo Intl Airport, NY at 12:00Z on 2011-02-23Temperature 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, Buffalo Intl Airport, NY at 12:00Z on 2011-02-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 23 square meters per square second.19395878Sfc1 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
2082 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
23 m²/s²
0-3 km storm-relative helicity
32 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.

534 
WWUS41 KBUF 232030
WSWBUF

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE BUFFALO NY
330 PM EST WED FEB 23 2011

NYZ001>008-010>014-019>021-085-240430-
/O.NEW.KBUF.WS.A.0003.110225T0900Z-110225T2300Z/
NIAGARA-ORLEANS-MONROE-WAYNE-NORTHERN CAYUGA-OSWEGO-JEFFERSON-
LEWIS-NORTHERN ERIE-GENESEE-WYOMING-LIVINGSTON-ONTARIO-CHAUTAUQUA-
CATTARAUGUS-ALLEGANY-SOUTHERN ERIE-
INCLUDING THE CITIES OF...NIAGARA FALLS...MEDINA...ROCHESTER...
NEWARK...FAIR HAVEN...OSWEGO...WATERTOWN...LOWVILLE...BUFFALO...
BATAVIA...WARSAW...GENESEO...CANANDAIGUA...JAMESTOWN...OLEAN...
WELLSVILLE...ORCHARD PARK...SPRINGVILLE
330 PM EST WED FEB 23 2011

...WINTER STORM WATCH IN EFFECT FROM LATE THURSDAY NIGHT THROUGH
FRIDAY AFTERNOON...

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A WINTER STORM
WATCH...WHICH IS IN EFFECT FROM LATE THURSDAY NIGHT THROUGH
FRIDAY AFTERNOON. 

* LOCATIONS...ALL OF WESTERN AND NORTH CENTRAL NEW YORK.

* TIMING...FROM EARLY FRIDAY MORNING THROUGH MID AFTERNOON.

* HAZARDS...HEAVY WET SNOW.

* ACCUMULATIONS...POTENTIAL FOR 6 TO 10 INCHES.

* WINDS...NORTHEAST 10 TO 20 MPH BACKING TO NORTH DURING FRIDAY.

* VISIBILITIES...TO NEAR ONE QUARTER MILE IN HEAVIER SNOW.

* TEMPERATURES...NEAR FREEZING AT FIRST...FALLING SLOWLY INTO THE 20S.

* IMPACTS...A SLOW FRIDAY MORNING COMMUTE.

* FORECASTER CONFIDENCE...HIGH SOUTHERN TIER TO FINGER
  LAKES...MEDIUM BUFFALO TO ROCHESTER AND NORTH COUNTRY.



PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WATCH MEANS THAT HEAVY SNOW AND/OR ICE
ACCUMULATIONS ARE POSSIBLE. IF YOU ARE WITHIN THE WATCH AREA...
REMAIN ALERT TO RAPIDLY CHANGING WEATHER 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.

&&

$$

SFM
3 follow-up statements
472 
WWUS41 KBUF 240328
WSWBUF

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE BUFFALO NY
1028 PM EST WED FEB 23 2011

NYZ001>008-010>014-019>021-085-241130-
/O.CON.KBUF.WS.A.0003.110225T0900Z-110225T2300Z/
NIAGARA-ORLEANS-MONROE-WAYNE-NORTHERN CAYUGA-OSWEGO-JEFFERSON-
LEWIS-NORTHERN ERIE-GENESEE-WYOMING-LIVINGSTON-ONTARIO-CHAUTAUQUA-
CATTARAUGUS-ALLEGANY-SOUTHERN ERIE-
INCLUDING THE CITIES OF...NIAGARA FALLS...MEDINA...ROCHESTER...
NEWARK...FAIR HAVEN...OSWEGO...WATERTOWN...LOWVILLE...BUFFALO...
BATAVIA...WARSAW...GENESEO...CANANDAIGUA...JAMESTOWN...OLEAN...
WELLSVILLE...ORCHARD PARK...SPRINGVILLE
1028 PM EST WED FEB 23 2011

...WINTER STORM WATCH REMAINS IN EFFECT FROM LATE THURSDAY NIGHT
THROUGH FRIDAY AFTERNOON...

A WINTER STORM WATCH REMAINS IN EFFECT FROM LATE THURSDAY NIGHT
THROUGH FRIDAY AFTERNOON. 

* LOCATIONS...ALL OF WESTERN AND NORTH CENTRAL NEW YORK.

* TIMING...FROM LATE THURSDAY NIGHT THROUGH FRIDAY MID AFTERNOON.

* HAZARDS...HEAVY WET SNOW.

* ACCUMULATIONS...POTENTIAL FOR 6 TO 10 INCHES.

* WINDS...NORTHEAST 10 TO 20 MPH BACKING TO NORTH DURING FRIDAY.

* VISIBILITIES...TO NEAR ONE QUARTER MILE IN HEAVIER SNOW.

* TEMPERATURES...NEAR FREEZING AT FIRST...FALLING SLOWLY INTO 
  THE 20S.

* IMPACTS...A SLOW FRIDAY MORNING COMMUTE.

* FORECASTER CONFIDENCE...HIGH SOUTHERN TIER TO FINGER LAKES...
  LOW TO MEDIUM BUFFALO TO ROCHESTER AND NORTH COUNTRY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WATCH MEANS THAT HEAVY SNOW AND/OR ICE
ACCUMULATIONS ARE POSSIBLE. IF YOU ARE WITHIN THE WATCH AREA...
REMAIN ALERT TO RAPIDLY CHANGING WEATHER 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.

&&

$$

RSH
161 
WWUS41 KBUF 240842
WSWBUF

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE BUFFALO NY
342 AM EST THU FEB 24 2011

NYZ001>008-010>014-019>021-085-241645-
/O.CON.KBUF.WS.A.0003.110225T0900Z-110225T2300Z/
NIAGARA-ORLEANS-MONROE-WAYNE-NORTHERN CAYUGA-OSWEGO-JEFFERSON-
LEWIS-NORTHERN ERIE-GENESEE-WYOMING-LIVINGSTON-ONTARIO-CHAUTAUQUA-
CATTARAUGUS-ALLEGANY-SOUTHERN ERIE-
INCLUDING THE CITIES OF...NIAGARA FALLS...MEDINA...ROCHESTER...
NEWARK...FAIR HAVEN...OSWEGO...WATERTOWN...LOWVILLE...BUFFALO...
BATAVIA...WARSAW...GENESEO...CANANDAIGUA...JAMESTOWN...OLEAN...
WELLSVILLE...ORCHARD PARK...SPRINGVILLE
342 AM EST THU FEB 24 2011

...WINTER STORM WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH
FRIDAY AFTERNOON...

A WINTER STORM WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH
FRIDAY AFTERNOON. 

* LOCATIONS...ALL OF WESTERN AND NORTH CENTRAL NEW YORK.

* TIMING...FROM LATE THURSDAY NIGHT THROUGH FRIDAY MID AFTERNOON.

* HAZARDS...HEAVY WET SNOW.

* ACCUMULATIONS...POTENTIAL FOR 6 TO 10 INCHES.

* WINDS...NORTHEAST 10 TO 20 MPH...BECOMING NORTHWEST AND INCREASING
  TO 15 TO 30 MPH FRIDAY AFTERNOON.

* VISIBILITIES...TO NEAR ONE QUARTER MILE POSSIBLE IN HEAVIER
  SNOW.

* TEMPERATURES...NEAR FREEZING AT FIRST...FALLING SLOWLY INTO 
  THE 20S. 

* IMPACTS...A SLOW FRIDAY MORNING COMMUTE.

* FORECASTER CONFIDENCE...HIGH CONFIDENCE IN SOME LOCATIONS IN THE
  WATCH AREA RECEIVING UP TO 10 INCHES OF SNOW. SOME UNCERTAINTY
  REMAINS AS TO WHERE THE AXIS OF HEAVIER SNOWFALL WILL FALL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WATCH MEANS THAT HEAVY SNOW AND/OR ICE
ACCUMULATIONS ARE POSSIBLE. IF YOU ARE WITHIN THE WATCH AREA...
REMAIN ALERT TO RAPIDLY CHANGING WEATHER 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.

&&

$$

APFFEL
389 
WWUS41 KBUF 241826
WSWBUF

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE BUFFALO NY
126 PM EST THU FEB 24 2011

NYZ001>004-010>014-019>021-085-250230-
/O.UPG.KBUF.WS.A.0003.110225T0900Z-110225T2300Z/
/O.NEW.KBUF.WS.W.0004.110225T0800Z-110225T2200Z/
NIAGARA-ORLEANS-MONROE-WAYNE-NORTHERN ERIE-GENESEE-WYOMING-
LIVINGSTON-ONTARIO-CHAUTAUQUA-CATTARAUGUS-ALLEGANY-SOUTHERN ERIE-
INCLUDING THE CITIES OF...NIAGARA FALLS...MEDINA...ROCHESTER...
NEWARK...BUFFALO...BATAVIA...WARSAW...GENESEO...CANANDAIGUA...
JAMESTOWN...OLEAN...WELLSVILLE...ORCHARD PARK...SPRINGVILLE
126 PM EST THU FEB 24 2011

...WINTER STORM WARNING IN EFFECT FROM 3 AM TO 5 PM EST FRIDAY...

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A WINTER STORM
WARNING FOR HEAVY SNOW...WHICH IS IN EFFECT FROM 3 AM TO 5 PM EST
FRIDAY. 

* LOCATIONS...ALL OF WESTERN AND NORTH CENTRAL NEW YORK.

* TIMING...FROM LATE TONIGHT THROUGH FRIDAY AFTERNOON.

* HAZARDS...HEAVY WET SNOW.

* ACCUMULATIONS...6 TO 10 INCHES...GREATEST OVER HIGHER ELEVATIONS.

* WINDS...NORTHEAST 10 TO 20 MPH...BECOMING NORTHWEST AND
  INCREASING TO 15 TO 25 MPH FRIDAY AFTERNOON. GUSTS TO 35 MPH.

* VISIBILITIES...TO NEAR ONE QUARTER MILE POSSIBLE IN HEAVIER SNOW.
  INCREASING BLOWING SNOW DURING THE AFTERNOON.

* TEMPERATURES...NEAR FREEZING AT FIRST...FALLING SLOWLY INTO 
  THE 20S. 

* IMPACTS...MAJOR IMPACT ON BOTH MORNING AND AFTERNOON COMMUTES.
  COMMUTE.


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.

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.

&&

$$

NYZ005>008-250230-
/O.UPG.KBUF.WS.A.0003.110225T0900Z-110225T2300Z/
/O.NEW.KBUF.WS.W.0004.110225T1100Z-110226T0200Z/
NORTHERN CAYUGA-OSWEGO-JEFFERSON-LEWIS-
INCLUDING THE CITIES OF...FAIR HAVEN...OSWEGO...WATERTOWN...
LOWVILLE
126 PM EST THU FEB 24 2011

...WINTER STORM WARNING IN EFFECT FROM 6 AM TO 9 PM EST FRIDAY...

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A WINTER STORM
WARNING FOR HEAVY SNOW...WHICH IS IN EFFECT FROM 6 AM TO 9 PM EST
FRIDAY. 

* LOCATIONS...CENTRAL AND NORTHERN NEW YORK.

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

* HAZARDS...HEAVY WET SNOW.

* ACCUMULATIONS...POTENTIAL FOR 6 TO 10 INCHES...LEAST OVER ST.
  LAWRENCE VALLEY.

* WINDS...NORTHEAST 10 TO 20 MPH...BECOMING NORTHWEST AND 
  INCREASING TO 15 TO 30 MPH FRIDAY AFTERNOON. 

* VISIBILITIES...TO NEAR ONE QUARTER MILE POSSIBLE IN HEAVIER 
  SNOW. 

* TEMPERATURES...NEAR FREEZING AT FIRST...FALLING SLOWLY INTO 
  THE 20S. 

* IMPACTS...MAJOR IMPACTS ON BOTH MORNING AND AFTERNOON COMMUTES.


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.

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.

&&

$$

WCH/SFM

Nearby

Winter Storm Watches in New York, 2011Every winter storm watch in 2011

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.