Alert archive / New York / Special Weather Statements in 2018

Special Weather Statement, NWS Buffalo, NY

December 6, 2018Jefferson County, Lewis County, New York

NWS Buffalo, NY issued this special weather statement at Dec 6, 2018, 5:36 PM EST for Jefferson County, Lewis County, New York. It was in force for 69 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Dec 6, 2018, 5:36 PM EST (22:36 UTC)
Expired
Dec 6, 2018, 6:45 PM EST
In force
69 min
Issued by
NWS Buffalo, NY

Counties Jefferson County, NY, Lewis County, NY

The radar

The Ft Drum radar (KTYX), 37 km from the middle of the area, began a volume at 22:35 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

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

The nearest sounding before it

Albany, NY (KALY), launched 12:00Z, 10.6 hours before the alert went out and 226 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Albany, NY at 12:00Z on 2018-12-06Temperature 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, Albany, NY at 12:00Z on 2018-12-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 105 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
1115 m above ground
0-6 km bulk shear
74 kt
0-1 km storm-relative helicity
105 m²/s²
0-3 km storm-relative helicity
146 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Dec 6, 4:15 PM EST, 1 hour 21 minutes earlier.

Area forecast discussion, Dec 6, 4:15 PM EST, 1 hour 21 minutes before
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Hazardous weather outlook, Dec 6, 3:04 PM EST, 2 hours 32 minutes before
Hazardous Weather Outlook
National Weather Service Buffalo NY
304 PM EST Thu Dec 6 2018

NYZ001-072015-
Niagara-
304 PM EST Thu Dec 6 2018

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 7 PM EST THIS EVENING...

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.

   Winter Weather Advisory.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

This product, along with other watches, warnings, advisories, and
statements issued by the National Weather Service office in Buffalo
can be found on the internet at http://www.weather.gov/buf

NYZ002-072015-
Orleans-
304 PM EST Thu Dec 6 2018

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 7 PM EST THIS EVENING...

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.

   Winter Weather Advisory.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

This product, along with other watches, warnings, advisories, and
statements issued by the National Weather Service office in Buffalo
can be found on the internet at http://www.weather.gov/buf

NYZ010-011-072015-
Northern Erie-Genesee-
304 PM EST Thu Dec 6 2018

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 7 PM EST THIS EVENING...

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.

   Winter Weather Advisory.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

This product, along with other watches, warnings, advisories, and
statements issued by the National Weather Service office in Buffalo
can be found on the internet at http://www.weather.gov/buf

NYZ012-019-020-085-072015-
Wyoming-Chautauqua-Cattaraugus-Southern Erie-
304 PM EST Thu Dec 6 2018

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 6 AM EST FRIDAY...

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.

   Winter Weather Advisory.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

This product, along with other watches, warnings, advisories, and
statements issued by the National Weather Service office in Buffalo
can be found on the internet at http://www.weather.gov/buf

NYZ003>005-013-014-021-072015-
Monroe-Wayne-Northern Cayuga-Livingston-Ontario-Allegany-
304 PM EST Thu Dec 6 2018

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

.DAY ONE...This afternoon and tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

This product, along with other watches, warnings, advisories, and
statements issued by the National Weather Service office in Buffalo
can be found on the internet at http://www.weather.gov/buf

NYZ006-072015-
Oswego-
304 PM EST Thu Dec 6 2018

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 1 AM EST FRIDAY...

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.

   Winter Weather Advisory.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

This product, along with other watches, warnings, advisories, and
statements issued by the National Weather Service office in Buffalo
can be found on the internet at http://www.weather.gov/buf

NYZ007-008-072015-
Jefferson-Lewis-
304 PM EST Thu Dec 6 2018

...WINTER STORM WARNING IN EFFECT UNTIL 1 AM EST FRIDAY...

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.

   Winter Storm Warning.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

This product, along with other watches, warnings, advisories, and
statements issued by the National Weather Service office in Buffalo
can be found on the internet at http://www.weather.gov/buf

LEZ020-040-041-LOZ030-042>045-062>065-SLZ022-024-072015-
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-
304 PM EST Thu Dec 6 2018

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...Friday through Wednesday.

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

This product, along with other watches, warnings, advisories, and
statements issued by the National Weather Service office in Buffalo
can be found on the internet at http://www.weather.gov/buf

In the hours before

Special weather statement, Dec 6, 2:19 PM EST, 3 hours 17 minutes before
Special Weather Statement
National Weather Service Buffalo NY
219 PM EST Thu Dec 6 2018

NYZ001>008-010>014-019>021-085-062300-
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, and Springville
219 PM EST Thu Dec 6 2018

...Snow squalls possible late this afternoon and early evening...

A cold front will cross the region late this afternoon and early
evening, resulting in lake effect snow from both Lake Erie and
Lake Ontario that will quickly move inland. This will affect the
evening commute, particularly between about 4 to 6 PM.

These bands will move southeast into portions of Western and
Central New York before weakening later this evening. The
resulting effect may be snow squalls with brief but intense
snowfall with near white-out conditions.

Be prepared for brief heavy snow, sudden changes in visibility,
and slick, snow covered roads.

Zaff
Local storm report, Dec 6, 2:20 PM EST, 3 hours 16 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BUFFALO NY
220 PM EST THU DEC 06 2018

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0200 PM     SNOW             S WATERTOWN             43.97N  75.91W
12/06/2018  M9.2 INCH        JEFFERSON          NY   COCORAHS

            SNOWFALL THROUGH 2 PM

&&

EVENT NUMBER BUF1801006

DPK
Local storm report, Dec 6, 3:08 PM EST, 2 hours 28 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BUFFALO NY
308 PM EST THU DEC 06 2018

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0300 PM     SNOW             5 SSW HARRISVILLE       44.09N  75.37W
12/06/2018  M11.0 INCH       LEWIS              NY   COCORAHS

            STORM TOTAL SO FAR. PRESENTLY MODERATE TO HEAVY SNOW
            WITH RATES OF 1.5 TO 2 INCHES PER HOUR.

&&

EVENT NUMBER BUF1801007

DPK
Special weather statement, Dec 6, 4:03 PM EST, 1 hour 33 minutes before
Special Weather Statement
National Weather Service Buffalo NY
403 PM EST THU DEC 6 2018

NYZ006>008-062230-
Jefferson-Oswego-Lewis-
403 PM EST THU DEC 6 2018

...A BAND OF LAKE EFFECT SNOW WILL AFFECT SOUTHERN JEFFERSON...LEWIS
AND NORTHEASTERN OSWEGO COUNTIES...

At 400 PM EST, A band of lake effect snow producing snow fall rates
of 2 to 3 inches per hour is oriented due east of Lake Ontario, from
near Sackets Harbor and Mannsville, inland to southern Watertown,
Adams, Copenhagen and Croghan. This band will remain steady state
through the late afternoon, before sliding southward early this
evening.

Winds in excess of 30 mph are possible with this band of lake effect
snow.

Locations impacted include...
Watertown, Sandy Island Beach State Park, Fort Drum, Stony Point,
Carthage, Lowville, West Carthage, Adams, Dexter, Glen Park,
Herrings, Highmarket, Adams Center, Southwick Beach State Park,
Henderson Harbor, Barnes Corners, Whetstone Gulf State Park, Denmark,
New Bremen and Watson.

This includes Interstate 81 between exits 37 and 48.

Visibilities will drop quickly to less than a quarter of a mile in
this band of lake effect snow.

LAT...LON 4355 7525 4361 7626 4378 7629 4383 7636
      4387 7635 4385 7645 4396 7644 4396 7634
      4398 7635 4413 7523 4409 7517 4361 7511

Thomas
Local storm report, Dec 6, 5:27 PM EST, 9 minutes before
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Special weather statement, Dec 6, 5:36 PM EST, 0 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Dec 5, 8:23 PM ESTWinter Storm WarningBUFJefferson, Lewis29 hr
Dec 6, 8:01 AM ESTSpecial Weather StatementBUFNiagara74 min
Dec 6, 4:03 PM ESTSpecial Weather StatementBUFJefferson, Lewis87 min
Dec 6, 6:28 PM ESTSpecial Weather StatementBUFChautauqua, Erie, Wyoming92 min

Nearby

Special Weather Statements in New York, 2018Every special weather statement 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.