Alert archive / New York / Winter Storm Warnings in 2018

Winter Storm Warning 4, NWS Buffalo, NY

March 9, 20184 counties in New York

NWS Buffalo, NY issued this winter storm warning at Mar 9, 2018, 9:16 AM EST for 4 counties in New York. It was in force for 18 hr. 5 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Mar 9, 2018, 9:16 AM EST (14:16 UTC)
Expired
Mar 10, 2018, 3:28 AM EST
In force
18 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 14:17 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.

What was reported inside it

TimeReportWhereRemark
Mar 9, 10:00 AM ESTSNOW 7Perrysburg, NY24-HOUR SNOWFALL.
Mar 9, 3:00 PM ESTSNOW 62 Sw Forestville, NY24-HOUR SNOWFALL.
Mar 9, 3:00 PM ESTSNOW 10Perrysburg, NY
Mar 9, 6:00 PM ESTSNOW 12Springville, NY24-HOUR SNOWFALL.
Mar 9, 9:00 PM ESTSNOW 13Perrysburg, NY

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 2.3 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 12:00Z on 2018-03-09Temperature 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 2018-03-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 88 square meters per square second.1939Sfc1 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
620 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
88 m²/s²
0-3 km storm-relative helicity
125 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

228 
WWUS41 KBUF 091416
WSWBUF

URGENT - WINTER WEATHER MESSAGE
National Weather Service Buffalo NY
916 AM EST Fri Mar 9 2018

NYZ012-019-020-085-092230-
/O.UPG.KBUF.WW.Y.0055.000000T0000Z-180310T1000Z/
/O.NEW.KBUF.WS.W.0004.180309T1416Z-180310T1000Z/
Wyoming-Chautauqua-Cattaraugus-Southern Erie-
Including the cities of Warsaw, Jamestown, Olean, Orchard Park, 
and Springville
916 AM EST Fri Mar 9 2018

...WINTER STORM WARNING IN EFFECT UNTIL 5 AM EST SATURDAY...

* WHAT...Heavy snow. Additional snow accumulations of 4 to 8
  inches are expected, with locally higher storm total
  accumulations of 10 to 14 inches over the higher terrain of the
  Chautauqua Ridge and Boston Hills.

* WHERE...Wyoming, Chautauqua, Cattaraugus, and Southern Erie 
  counties.

* WHEN...Until 5 AM EST Saturday.

* ADDITIONAL DETAILS...Plan on difficult travel conditions,
  including during the evening commute. Be prepared for 
  significant reductions in visibility at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Widespread accumulating snow will create dangerous travel
conditions.

Submit snow reports through our website or social media.

&&

$$

NYZ006>008-092230-
/O.CON.KBUF.WW.Y.0055.000000T0000Z-180310T1000Z/
Oswego-Jefferson-Lewis-
Including the cities of Oswego, Watertown, and Lowville
916 AM EST Fri Mar 9 2018

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM EST
SATURDAY...

* WHAT...Snow. Additional snow accumulations of 5 to 9 inches 
  are expected.

* WHERE...The Eastern Lake Ontario Region.

* WHEN...Until 5 AM EST Saturday.

* ADDITIONAL DETAILS...Plan on difficult travel conditions, 
  including during the morning commute. Be prepared for reduced 
  visibilities at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Periods of snow will result in snow covered roads and limited
visibilities. Slow down and use caution while driving.

Submit snow reports through our website or social media.

&&

$$

NYZ004-005-092230-
/O.CON.KBUF.WW.Y.0055.000000T0000Z-180310T1000Z/
Wayne-Northern Cayuga-
Including the cities of Newark and Fair Haven
916 AM EST Fri Mar 9 2018

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM EST
SATURDAY...

* WHAT...Snow. Additional snow accumulations of 3 to 5 inches 
  are expected.

* WHERE...Wayne and Northern Cayuga counties.

* WHEN...Until 5 AM EST Saturday.

* ADDITIONAL DETAILS...Plan on slippery road conditions, 
  including during the evening commute. Be prepared for reduced 
  visibilities at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Periods of snow will result in snow covered roads and limited
visibilities. Slow down and use caution while driving.

Submit snow reports through our website or social media.

&&

$$

TMA
4 follow-up statements
166 
WWUS41 KBUF 091953
WSWBUF

URGENT - WINTER WEATHER MESSAGE
National Weather Service Buffalo NY
253 PM EST Fri Mar 9 2018

NYZ012-019-020-085-100400-
/O.CON.KBUF.WS.W.0004.000000T0000Z-180310T1000Z/
Wyoming-Chautauqua-Cattaraugus-Southern Erie-
Including the cities of Warsaw, Jamestown, Olean, Orchard Park, 
and Springville
253 PM EST Fri Mar 9 2018

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM EST
SATURDAY...

* WHAT...Heavy snow. Additional snow accumulations of 2 to 4
  inches are expected, with locally higher storm total
  accumulations of 10 to 14 inches over the higher terrain of the  
  Chautauqua Ridge and Boston Hills.

* WHERE...Wyoming, Chautauqua, Cattaraugus, and Southern Erie 
  counties.

* WHEN...Until 5 AM EST Saturday.

* ADDITIONAL DETAILS...Plan on difficult travel conditions, 
  including during the evening commute. Be prepared for 
  significant reductions in visibility at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Widespread accumulating snow will create dangerous travel
conditions.

Submit snow reports through our website or social media.

&&

$$

NYZ006>008-100400-
/O.CON.KBUF.WW.Y.0055.000000T0000Z-180310T1000Z/
Oswego-Jefferson-Lewis-
Including the cities of Oswego, Watertown, and Lowville
253 PM EST Fri Mar 9 2018

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM EST
SATURDAY...

* WHAT...Snow. Additional snow accumulations of 3 to 6 inches 
  are expected.

* WHERE...The Eastern Lake Ontario Region.

* WHEN...Until 5 AM EST Saturday.

* ADDITIONAL DETAILS...Plan on slippery road conditions, 
  including during the evening commute. Be prepared for reduced 
  visibilities at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Periods of snow will result in snow covered roads and limited
visibilities. Slow down and use caution while driving.

Submit snow reports through our website or social media.

&&

$$

NYZ004-005-100400-
/O.CON.KBUF.WW.Y.0055.000000T0000Z-180310T1000Z/
Wayne-Northern Cayuga-
Including the cities of Newark and Fair Haven
253 PM EST Fri Mar 9 2018

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM EST
SATURDAY...

* WHAT...Snow. Additional snow accumulations of 2 to 4 inches 
  are expected.

* WHERE...Wayne and Northern Cayuga counties.

* WHEN...Until 5 AM EST Saturday.

* ADDITIONAL DETAILS...Plan on slippery road conditions, 
  including during the evening commute. Be prepared for reduced 
  visibilities at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Periods of snow will result in snow covered roads and limited
visibilities. Slow down and use caution while driving.

Submit snow reports through our website or social media.

&&

$$

TMA
451 
WWUS41 KBUF 100234
WSWBUF

URGENT - WINTER WEATHER MESSAGE
National Weather Service Buffalo NY
934 PM EST Fri Mar 9 2018

NYZ012-019-020-085-101000-
/O.CON.KBUF.WS.W.0004.000000T0000Z-180310T1000Z/
Wyoming-Chautauqua-Cattaraugus-Southern Erie-
Including the cities of Warsaw, Jamestown, Olean, Orchard Park, 
and Springville
934 PM EST Fri Mar 9 2018

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM EST
SATURDAY...

* WHAT...Heavy snow. Additional snow accumulations of 1 to 2
  inches possible in the most persistent snows.

* WHERE...Wyoming, Chautauqua, Cattaraugus, and Southern Erie 
  counties.

* WHEN...Until 5 AM EST Saturday.

* ADDITIONAL DETAILS...Plan on difficult travel conditions. Be 
  prepared for significant reductions in visibility at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Widespread accumulating snow will create dangerous travel
conditions.

Submit snow reports through our website or social media.

&&

$$

NYZ006>008-101000-
/O.CON.KBUF.WW.Y.0055.000000T0000Z-180310T1000Z/
Oswego-Jefferson-Lewis-
Including the cities of Oswego, Watertown, and Lowville
934 PM EST Fri Mar 9 2018

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM EST
SATURDAY...

* WHAT...Snow. Additional snow accumulations of 1 to 3 inches 
  are expected.

* WHERE...The Eastern Lake Ontario Region.

* WHEN...Until 5 AM EST Saturday.

* ADDITIONAL DETAILS...Plan on slippery road conditions. Be 
  prepared for reduced visibilities at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Periods of snow will result in snow covered roads and limited
visibilities. Slow down and use caution while driving.

Submit snow reports through our website or social media.

&&

$$

NYZ004-005-101000-
/O.CON.KBUF.WW.Y.0055.000000T0000Z-180310T1000Z/
Wayne-Northern Cayuga-
Including the cities of Newark and Fair Haven
934 PM EST Fri Mar 9 2018

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM EST
SATURDAY...

* WHAT...Snow. Additional snow accumulations of 2 to 4 inches 
  are expected.

* WHERE...Wayne and Northern Cayuga counties.

* WHEN...Until 5 AM EST Saturday.

* ADDITIONAL DETAILS...Plan on slippery road conditions. Be 
  prepared for reduced visibilities at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Periods of snow will result in snow covered roads and limited
visibilities. Slow down and use caution while driving.

Submit snow reports through our website or social media.

&&

$$
Reynolds
414 
WWUS41 KBUF 100707
WSWBUF

URGENT - WINTER WEATHER MESSAGE
National Weather Service Buffalo NY
207 AM EST Sat Mar 10 2018

NYZ012-019-020-085-101000-
/O.CON.KBUF.WS.W.0004.000000T0000Z-180310T1000Z/
Wyoming-Chautauqua-Cattaraugus-Southern Erie-
Including the cities of Warsaw, Jamestown, Olean, Orchard Park, 
and Springville
207 AM EST Sat Mar 10 2018

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM EST EARLY
THIS MORNING...

* WHAT...Heavy snow. Additional snow accumulations of an inch or 
  less are expected.

* WHERE...Wyoming, Chautauqua, Cattaraugus, and Southern Erie 
  counties.

* WHEN...Until 5 AM EST early this morning.

* ADDITIONAL DETAILS...Plan on difficult travel conditions. Be 
  prepared for significant reductions in visibility at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Widespread accumulating snow will create dangerous travel
conditions.

Submit snow reports through our website or social media.

&&

$$

NYZ006>008-101500-
/O.EXT.KBUF.WW.Y.0055.000000T0000Z-180310T1500Z/
Oswego-Jefferson-Lewis-
Including the cities of Oswego, Watertown, and Lowville
207 AM EST Sat Mar 10 2018

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 10 AM EST THIS
MORNING...

* WHAT...Snow. Additional snow accumulations of 2 to 4 inches 
  are expected.

* WHERE...The Eastern Lake Ontario Region.

* WHEN...Until 10 AM EST this morning.

* ADDITIONAL DETAILS...Plan on slippery road conditions. Be 
  prepared for reduced visibilities at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Periods of snow will result in snow covered roads and limited
visibilities. Slow down and use caution while driving.

Submit snow reports through our website or social media.

&&

$$

NYZ004-005-101500-
/O.EXT.KBUF.WW.Y.0055.000000T0000Z-180310T1500Z/
Wayne-Northern Cayuga-
Including the cities of Newark and Fair Haven
207 AM EST Sat Mar 10 2018

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 10 AM EST THIS
MORNING...

* WHAT...Snow. Additional snow accumulations of 2 to 4 inches 
  are expected.

* WHERE...Wayne and Northern Cayuga counties.

* WHEN...Until 10 AM EST this morning.

* ADDITIONAL DETAILS...Plan on slippery road conditions. Be 
  prepared for reduced visibilities at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Periods of snow will result in snow covered roads and limited
visibilities. Slow down and use caution while driving.

Submit snow reports through our website or social media.

&&

$$
436 
WWUS41 KBUF 100828
WSWBUF

URGENT - WINTER WEATHER MESSAGE
National Weather Service Buffalo NY
328 AM EST Sat Mar 10 2018

NYZ012-019-020-085-100930-
/O.CAN.KBUF.WS.W.0004.000000T0000Z-180310T1000Z/
Wyoming-Chautauqua-Cattaraugus-Southern Erie-
Including the cities of Warsaw, Jamestown, Olean, Orchard Park, 
and Springville
328 AM EST Sat Mar 10 2018

...WINTER STORM WARNING IS CANCELLED...

Steady snow has diminished to snow showers. Any additional
accumulation will be less than an inch.

$$

NYZ006>008-101500-
/O.CON.KBUF.WW.Y.0055.000000T0000Z-180310T1500Z/
Oswego-Jefferson-Lewis-
Including the cities of Oswego, Watertown, and Lowville
328 AM EST Sat Mar 10 2018

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM EST THIS
MORNING...

* WHAT...Snow. Additional snow accumulations of 1 to 3 inches are
  expected, mainly on the Tug Hill Plateau.

* WHERE...The Eastern Lake Ontario Region. Greatest accumulation
  will be on the Tug Hill Plateau.

* WHEN...Until 10 AM EST this morning.

* ADDITIONAL DETAILS...Plan on slippery road conditions. Be 
  prepared for reduced visibilities at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Periods of snow will result in snow covered roads and limited
visibilities. Slow down and use caution while driving.

Submit snow reports through our website or social media.

&&

$$

NYZ004-005-101500-
/O.CON.KBUF.WW.Y.0055.000000T0000Z-180310T1500Z/
Wayne-Northern Cayuga-
Including the cities of Newark and Fair Haven
328 AM EST Sat Mar 10 2018

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM EST THIS
MORNING...

* WHAT...Snow. Additional snow accumulations of 1 to 3 inches 
  are expected.

* WHERE...Wayne and Northern Cayuga counties.

* WHEN...Until 10 AM EST this morning.

* ADDITIONAL DETAILS...Plan on slippery road conditions. Be 
  prepared for reduced visibilities at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Periods of snow will result in snow covered roads and limited
visibilities. Slow down and use caution while driving.

Submit snow reports through our website or social media.

&&

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 9, 7:30 AM ESTSpecial Weather StatementBUFGenesee, Monroe, Niagara60 min
Mar 9, 3:09 PM ESTSpecial Weather StatementBUFGenesee, Monroe, Ontario, Orleans21 min
Mar 9, 4:00 PM ESTSpecial Weather StatementBUFMonroe, Orleans60 min

Nearby

Winter Storm Warnings in New York, 2018Every winter storm warning in 2018

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.