Alert archive / New York / Winter Weather Advisories in 2017

Winter Weather Advisory 22, NWS Buffalo, NY

December 10, 2017Erie County, Genesee County, New York

NWS Buffalo, NY issued this winter weather advisory at Dec 10, 2017, 4:09 AM EST for Erie County, Genesee County, New York. It took effect at Dec 10, 2017, 1:00 PM EST. It was in force for .

The area

The counties it named.

The facts

Issued
Dec 10, 2017, 4:09 AM EST (09:09 UTC)
In effect from
Dec 10, 2017, 1:00 PM EST
Expired
Dec 10, 2017, 10:56 AM EST
In force
Issued by
NWS Buffalo, NY

Counties Erie County, NY, Genesee County, NY

The radar

The Buffalo radar (KBUF), 22 km from the middle of the area, began a volume at 09:11 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, 9.2 hours before the alert went out and 18 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 2017-12-10Temperature 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 2017-12-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -9 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
1239 m above ground
0-6 km bulk shear
67 kt
0-1 km storm-relative helicity
-9 m²/s²
0-3 km storm-relative helicity
16 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this winter weather 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 winter weather advisory went out at Dec 10, 4:06 AM EST, 3 minutes earlier.

Area forecast discussion, Dec 10, 4:06 AM EST, 3 minutes before
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Hazardous weather outlook, Dec 9, 2:05 PM EST, 14 hours 4 minutes before
Hazardous Weather Outlook
National Weather Service Buffalo NY
205 PM EST Sat Dec 9 2017

NYZ001>005-010-011-013-014-021-101915-
Niagara-Orleans-Monroe-Wayne-Northern Cayuga-Northern Erie-Genesee-
Livingston-Ontario-Allegany-
205 PM EST Sat Dec 9 2017

This Hazardous Weather Outlook is for portions of western and north
central New York.

.DAY ONE...This Afternoon and Tonight.

The chance of widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Low pressure moving across the Lower Great Lakes and New England
Monday night through Wednesday will generate periods of widespread
accumulating snow across the region. Significant snow will be
possible for the counties bordering the south shore of Lake Ontario
late Tuesday night and Wednesday as cold northwest flow allows lake
enhancement to increase.

.SPOTTER INFORMATION STATEMENT...

Spotters are requested to send in their snow measurements.

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

NYZ012-019-020-085-101915-
Wyoming-Chautauqua-Cattaraugus-Southern Erie-
205 PM EST Sat Dec 9 2017

...LAKE EFFECT SNOW WARNING IN EFFECT FROM 1 AM SUNDAY TO 7 AM EST
MONDAY...

This Hazardous Weather Outlook is for portions of western New York.

.DAY ONE...This Afternoon and Tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Lake Effect Snow Warning.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Lake Effect Snow Warning.

Low pressure moving across the Lower Great Lakes and New England
Monday night through Wednesday will generate periods of widespread
accumulating snow across the region. Significant snow will be
possible for the counties southeast of Lake Erie late Tuesday night
and Wednesday as cold northwest flow allows lake enhancement to
increase.

.SPOTTER INFORMATION STATEMENT...

Spotters are requested to send in their snow measurements.

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>008-101915-
Oswego-Jefferson-Lewis-
205 PM EST Sat Dec 9 2017

...LAKE EFFECT SNOW WARNING IN EFFECT FROM 4 AM SUNDAY TO 7 AM EST
MONDAY...

This Hazardous Weather Outlook is for portions of central New York.

.DAY ONE...This Afternoon and Tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Lake Effect Snow Warning.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Lake Effect Snow Warning.

Low pressure moving across the Lower Great Lakes and New England
Monday night through Wednesday will generate periods of widespread
accumulating snow across the region.

.SPOTTER INFORMATION STATEMENT...

Spotters are requested to send in their snow measurements.

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-LOZ030-042>045-062>065-SLZ022-024-101915-
Upper Niagara River and Buffalo Harbor-
Lake Erie nearshore waters from Ripley to Dunkirk-
Lake Erie nearshore waters from Dunkirk to Buffalo-
Lower Niagara River-
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-
205 PM EST Sat Dec 9 2017

This Hazardous Weather Outlook is for the New York waters of Lake
Erie, Lake Ontario, and the Saint Lawrence River.

.DAY ONE...This Afternoon and Tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

Spotters are requested to send in their snow measurements.

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

HITCHCOCK

In the hours before

Special weather statement, Dec 9, 10:28 PM EST, 5 hours 41 minutes before
Special Weather Statement
National Weather Service Buffalo NY
1028 PM EST SAT DEC 9 2017

NYZ010-085-100430-
Southern Erie-Northern Erie-
1028 PM EST SAT DEC 9 2017

...AN BAND OF LAKE EFFECT SNOW WILL AFFECT SOUTHERN ERIE COUNTY...

At 1025 PM EST, an band of lake effect snow was located along a line
from Sturgeon Point to Hamburg to East Aurora, producing snowfall
rates of 1 to 2 inches per hour and localized poor visibility to a
quarter a mile or less. This band of snow is expected to meander
over Southern Erie county through midnight before moving southward.

Locations impacted include... West Seneca, Lackawanna, Hamburg,
East Aurora, Evans, Boston, Eden, Colden, Orchard Park and Blasdell.

This includes Interstate 90 between exits 57A and 56.

Visibilities will drop quickly to a quarter of a mile or less in
this area of heavy snow.

Conditions can deteriorate rapidly in winter weather situations. Be
prepared for snow or ice covered roads. Slow down and allow extra
time when traveling.

LAT...LON 4264 7916 4267 7912 4272 7909 4276 7898
      4280 7892 4282 7892 4284 7849 4278 7849
      4278 7846 4276 7846 4255 7847 4254 7907
      4256 7910 4260 7918
TIME...MOT...LOC 0325Z 258DEG 20KT 4274 7878

Church

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 9, 10:28 PM ESTSpecial Weather StatementBUFErie62 min
Dec 10, 10:14 AM ESTSpecial Weather StatementBUFOswego61 min
Dec 10, 11:17 AM ESTSpecial Weather StatementBUFLewis58 min
Dec 10, 11:23 AM ESTSpecial Weather StatementBUFErie, Wyoming82 min
Dec 10, 12:15 PM ESTSpecial Weather StatementBUFJefferson, Lewis60 min
Dec 10, 12:50 PM ESTSpecial Weather StatementBUFErie, Genesee, Wyoming55 min
Dec 10, 1:21 PM ESTSpecial Weather StatementBUFLewis84 min
Dec 10, 1:55 PM ESTSpecial Weather StatementBUFErie, Genesee95 min
Dec 10, 2:49 PM ESTSpecial Weather StatementBUFLewis, Oswego86 min
Dec 10, 3:45 PM ESTWinter Weather AdvisoryBUFLivingston, Monroe9 hr
Dec 10, 4:01 PM ESTSpecial Weather StatementBUFErie, Genesee119 min
Dec 10, 4:08 PM ESTSpecial Weather StatementBUFJefferson, Lewis112 min
Dec 10, 5:59 PM ESTSpecial Weather StatementBUFErie2 hr
Dec 10, 6:05 PM ESTSpecial Weather StatementBUFLewis115 min

Nearby

Winter Weather Advisories in New York, 2017Every winter weather advisory in 2017

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.