Alert archive / New York / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 107, NWS Buffalo, NY

November 15, 2020Jefferson County, Lewis County, Oswego County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at Nov 15, 2020, 5:26 PM EST for Jefferson County, Lewis County, Oswego County, New York. It was in force for 64 min. 6 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Nov 15, 2020, 5:26 PM EST (22:26 UTC)
Expired
Nov 15, 2020, 6:30 PM EST
In force
64 min
Issued by
NWS Buffalo, NY
Area
Storm-based polygon
Hail
0.75 in
Wind
70.0 mph

Counties Jefferson County, NY, Lewis County, NY, Oswego County, NY

The radar

The Ft Drum radar (KTYX), 36 km from the middle of the area, began a volume at 22:25 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
Nov 15, 5:57 PM ESTTSTM WND DMGEllisburg, NYTREES AND WIRES DOWN BLOCKING ROADWAY.
Nov 15, 6:01 PM ESTTSTM WND DMG7 Ese Clayton, NYTREES AND WIRES DOWN BLOCKING ROADWAY.
Nov 15, 6:07 PM ESTTSTM WND DMG1 N Adams, NYTREES AND WIRES DOWN BLOCKING ROADWAY.
Nov 15, 6:07 PM ESTTSTM WND DMG3 Se Alexandria Bay, NYTREES AND WIRES DOWN BLOCKING ROADWAY.
Nov 15, 6:07 PM ESTTSTM WND DMGAdams, NYBARN BLOWN DOWN ON ROUTE 78.
Nov 15, 6:17 PM ESTTSTM WND GST 583 Nw Deferiet, NYAWOS STATION KGTB FORT DRUM AIRFIELD.

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

Did it verify

Verified. The Iowa Environmental Mesonet's Cow matched 6 storm reports to this severe thunderstorm warning; the first came 31 minutes after it went out.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

Albany, NY (KALY), launched 12:00Z, 10.4 hours before the alert went out and 220 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 2020-11-15Temperature 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 2020-11-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 164 square meters per square second.1939587897Sfc1 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
1248 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
164 m²/s²
0-3 km storm-relative helicity
313 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

632 
WUUS51 KBUF 152226
SVRBUF
NYC045-049-075-152330-
/O.NEW.KBUF.SV.W.0107.201115T2226Z-201115T2330Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Buffalo NY
526 PM EST Sun Nov 15 2020

The National Weather Service in Buffalo has issued a

* Severe Thunderstorm Warning for...
  Jefferson County in central New York...
  Southwestern Lewis County in central New York...
  Oswego County in central New York...

* Until 630 PM EST..

* At 525 PM EST, severe thunderstorms were located along a line
  extending from 19 miles northwest of Stony Point to 7 miles east of
  Chimney Bluffs State Park, moving northeast at 65 mph.

  HAZARD...70 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...Expect considerable tree damage. Damage is likely to 
           mobile homes, roofs, and outbuildings.

* Locations impacted include...
  Watertown, Oswego, Fulton, Fort Drum, Mexico, Adams, Cape Vincent, 
  Chaumont, Sackets Harbor, Stony Point, Carthage, Pulaski, West 
  Carthage and Clayton.

 This includes Interstate 81 between exits 32 and 52.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

This is a DANGEROUS SITUATION. These storms have produced 
widespread wind damage across Western New York. SEEK SHELTER 
NOW inside a sturdy structure and stay away from windows! 
&&

LAT...LON 4440 7583 4439 7584 4426 7553 4347 7576
      4348 7581 4333 7589 4316 7588 4327 7620
      4320 7621 4324 7626 4323 7648 4353 7650
      4358 7626 4387 7635 4387 7650 4396 7644
      4396 7634 4410 7642 4429 7615
TIME...MOT...LOC 2225Z 235DEG 56KT 4399 7664 4326 7678 

HAIL...<.75IN
WIND...70MPH
 
$$

Hitchcock
2 follow-up statements
124 
WWUS51 KBUF 152310
SVSBUF

Severe Weather Statement
National Weather Service Buffalo NY
610 PM EST Sun Nov 15 2020

NYC045-049-075-152330-
/O.CON.KBUF.SV.W.0107.000000T0000Z-201115T2330Z/
Jefferson NY-Lewis NY-Oswego NY-
610 PM EST Sun Nov 15 2020

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 PM EST
FOR JEFFERSON...SOUTHWESTERN LEWIS AND OSWEGO COUNTIES...

At 609 PM EST, severe thunderstorms were located along a line
extending from near Redwood to Central Square, moving northeast at 55
mph.

HAZARD...70 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect considerable tree damage. Damage is likely to mobile 
         homes, roofs, and outbuildings.

Locations impacted include...
Watertown, Fort Drum, Carthage, Pulaski, West Carthage, Central
Square, Adams, Dexter, Redfield and Glen Park.

 This includes Interstate 81 between exits 32 and 51.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

This is a DANGEROUS SITUATION. These storms have a history of 
producing widespread wind damage across Western and Central NY. 
SEEK SHELTER NOW inside a sturdy structure and stay away from 
windows.
 
&&

LAT...LON 4440 7583 4439 7584 4426 7553 4347 7576
      4348 7581 4333 7589 4316 7588 4327 7620
      4320 7621 4324 7626 4434 7600 4434 7597
TIME...MOT...LOC 2309Z 245DEG 49KT 4426 7583 4328 7614 

HAIL...<.75IN
WIND...70MPH
 
$$

Hitchcock
191 
WWUS51 KBUF 152331
SVSBUF

Severe Weather Statement
National Weather Service Buffalo NY
631 PM EST Sun Nov 15 2020

NYC045-049-075-152341-
/O.EXP.KBUF.SV.W.0107.000000T0000Z-201115T2330Z/
Jefferson NY-Lewis NY-Oswego NY-
631 PM EST Sun Nov 15 2020

...THE SEVERE THUNDERSTORM WARNING FOR JEFFERSON...SOUTHWESTERN LEWIS
AND OSWEGO COUNTIES HAS EXPIRED...
    
The storms which prompted the warning have moved out of the area.
Therefore, the warning has been allowed to expire.

A separate Severe Thunderstorm Warning remains in effect for eastern 
Jefferson and Lewis counties.

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Buffalo.

LAT...LON 4440 7583 4439 7584 4426 7553 4347 7576
      4348 7581 4333 7589 4316 7588 4327 7620
      4320 7621 4324 7626 4434 7600 4434 7597
TIME...MOT...LOC 2331Z 270DEG 56KT 4443 7549 4345 7580 

$$

Hitchcock

What forecasters said that day

The local office's own words before this severe thunderstorm warning 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 severe thunderstorm warning went out at Nov 15, 4:02 PM EST, 1 hour 24 minutes earlier.

Area forecast discussion, Nov 15, 4:02 PM EST, 1 hour 24 minutes before
Area Forecast Discussion
National Weather Service Buffalo NY
402 PM EST Sun Nov 15 2020

.SYNOPSIS...
A deep storm system over eastern Canada will generate damaging winds
for parts of the region tonight along with widespread precipitation.
This could include a few inches of wet snow across the higher
elevations of the Southern Tier and also on the Tug Hill. The strong
storm system will slowly exit across Quebec on Monday and this will
allow winds to very gradually subside through Monday night.

&&

.NEAR TERM /THROUGH MONDAY/...
...DAMAGING WINDS EXPECTED TONIGHT...

A very deep yet progressive mid level trough will move across the
Great Lakes this evening, taking on a negative tilt with time. The
associated surface low will pass south of James Bay through tonight
while deepening to around 979MB. Its trailing cold front will enter
Western NY around 3 p.m. today, then move rapidly east across the
eastern Lake Ontario region around 7 p.m.

WINDS...

In the wake of a cold front late this afternoon/early evening, the
wind event will transition into a more traditional high wind event
with the strongest winds focusing northeast of Lake Erie and Lake
Ontario. Model guidance continues to support a tropopause fold and
stratospheric PV intrusion as the base of the trough crosses the
eastern Great Lakes, with the 1.5 PVU surface decending to around
550 MB. This, combined with strong cold advection and post-frontal
pressure rises will support a period of strong subsidence and steep
lapse rates through the low/mid levels. The magnitude of post-
frontal winds aloft suggest gusts of 65 mph northeast of Lake Erie
from Buffalo to Rochester. A few 70 mph gusts are possible close to
Lake Erie. The strongest gusts northeast of Lake Erie will be mid
afternoon through mid evening. Gusts across Jefferson County will
likely be closer to 60 mph this evening. Farther inland, expect
gusts of around 50 mph from the interior Southern Tier through the
Finger Lakes.

PRECIPITATION...

In the wake of the system, lake effect rain will develop northeast
of Lake Erie by early evening. This band of rain will initially be
over the Buffalo Northtowns, then drift slowly south to the
Southtowns later this evening before reaching the western Southern
Tier late tonight as boundary layer flow veers more westerly. The
rain will mix with snow overnight across the higher terrain, with
very minor accumulations possible on the hills. Lake effect rain and
wet snow showers will continue Monday across the western Southern
Tier and the Boston Hills and Wyoming County. Spotty 1-3 inch
accumulations are expected late tonight through Monday for the
highest terrain, with little or nothing at lower elevations.

East of Lake Ontario lake effect rain will setup this evening near
Watertown, then drift south to the northern Tug Hill by late
tonight. Lake effect showers of rain and snow will continue across
the Tug Hill region Monday, with snow favored at higher elevations
and rain at lower elevations. Expect several inches of accumulation
across the highest elevations of the Tug Hill, with little or no
accumulation at lower elevations.

CONVECTION...

Upstream radars show a well developed line of low topped showers and
a few thunderstorms along the cold front. Latest high resolution
CAMS guidance suggests a good chance this line will hold together as
it crosses our region early this evening. Instability is extremely
limited, but the strongly forced environment along the cold front
will support maintenance of the fine line of low topped convection.
Extremely strong winds aloft will support the risk of isolated
damaging wind gusts to near 70 mph if this line of storms maintains
itself.

&&

.SHORT TERM /MONDAY NIGHT THROUGH WEDNESDAY/...
A large scale trough will remain in place over the eastern third of
the U.S. and Canada during most of this period. This will allow for
continued active weather with cooler than normal temperatures.

Monday night, a weak lake response will remain in place through the
early portion of the evening, especially east of Lake Ontario where
temperatures will be a bit cooler. The lake response will strengthen
late Monday evening as a shortwave trough approaches the area from
the Upper Midwest late Monday into Tuesday morning. A cold front
will cross the area, and bring most of the lake bands fully inland
with its passage. Timing on the cold frontal passage looks generally
around daybreak on Tuesday morning, but there is some model
disagreement still with timing of the front. The best chance for
accumulating snow will be across the higher terrain of the North
Country, with some snow also accumulating over the higher terrain of
the Western Southern Tier. Lower elevations can expect mostly a rain
or rain/snow mix through the early morning on Tuesday. Snowfall
amounts over the Tug Hill on Monday night will be around 1 to 3
inches, and in the higher terrain of the Western Southern Tier
around 1 to 2 inches will be possible. Lows on Monday night will be
in the upper 20s to around 30 for the higher terrain, and in the low
to mid 30s for the lower elevations.

Tuesday, behind the passing cold front, winds will begin to shift to
the northwest. As mentioned above, the cold front should briefly
dislodge the lake bands away from the lakes and bring them inland,
bringing rain/snow showers to a more widespread area. Cold air
advection behind the cold front and a passing shortwave trough will
cause lake bands to redevelop southeast of the lakes during the day
on Tuesday. 850H temps of around -7C on Tuesday morning should cool
to around -11C by the late afternoon. Some drier air will be moving
into the region behind the cold front and shortwave trough, so that
will limit some of the lake response. Some guidance is suggesting an
upstream connection with the Georgian Bay and Lake Huron, with a
band over the western end of Lake Ontario and a band over Lake Erie.
Should this become the setup, then where these bands set up, there
will be some locally higher precipitation amounts. If a lake band
sets up from the Georgian Bay and across Lake Ontario, placement of
the band looks best from Niagara County southeast into Genesee
County and into Livingston County during the afternoon on Tuesday,
and slowly shifting eastward later in the afternoon. If a lake band
sets up over Lake Erie with a Lake Huron connection, it looks like
the best chance for precipitation would be Chautauqua County,
especially over the higher terrain of the Chautauqua Ridge.
Precipitation closer to the lakes will be a rain or rain/snow mix,
and change to snow farther inland over the higher terrain. Cold air
advection on Tuesday will also change precip to snow slowly through
the afternoon with lowering elevation. The higher terrain of the Tug
Hill is expected to get a quick half inch or so of snow in the
morning before the band drops south. Otherwise the higher terrain of
the Western Southern Tier should also see around an inch of snow.
Interior areas can expect a coating of snow as temperatures cool
through the afternoon. Guidance is spread on temperatures still for
Tuesday and any fluctuation in what temperatures are on Tuesday can
greatly alter snow potential and amounts. High temperatures on
Tuesday will be in the low to mid 30s for the higher terrain and in
the mid to upper 30s for the lower elevations.

Tuesday night, any remaining lake response will all be in the form
of snow as continued cold air advection brings temps down through
the night. 850H temps cool to around -12C for WNY and around -15C
for the North Country, with some model guidance even cooler than
this. These cooler temperatures with the larger scale trough over
the region still will help continue some of the lake response
Tuesday night. An area of high pressure over the mid-Mississippi
Valley will push east causing increased ridging over the area later
Tuesday night into Wednesday morning. This will start to cut down on
the lake response some over the area. Lows on Tuesday night will be
in the low to mid 20s for areas south of Lake Ontario where lake
clouds are in place, and in the mid teens for the North Country.

Wednesday, a weak lake response will remain in place southeast of
the lakes, tapering off through the morning. This will occur as
ridging continues to increase through the day, and warm air
advection increases 850H temps through the day as well. Temperatures
will be in the low to mid 30s south of Lake Ontario and in the low
20s to low 30s for areas east of Lake Ontario.

&&

.LONG TERM /WEDNESDAY NIGHT THROUGH SUNDAY/...
High pressure will be across the eastern Great Lakes Wednesday night
and dry conditions will continue through Thursday. A chilly airmass
will be in place Wednesday night with highs in the upper 20s to mid
30s and lows in the teens to 20s. Cooler conditions possible across
the higher terrain across the western Southern Tier and Tug Hill.

A warm-up is expected Thursday and Friday with high temperatures
reaching the 50s across the region. Forecast consensus has high
pressure moving south and east of the region Friday maintaining dry
conditions into the weekend. A warm front will approach the region
Saturday and Sunday and chances for rain showers increase.

&&

.AVIATION /21Z SUNDAY THROUGH FRIDAY/...
Strong low pressure will then pass to our north and west this
evening. Expect a narrow band of heavy showers and possibly a few
thunderstorms along the associated cold front that will be capable
of producing convective wind gusts in excess of 50 knots along with
very brief IFR conditions.

Strong winds will continue behind the front, with gusts exceeding 50
knots this evening northeast of Lakes Erie and Ontario including
KBUF, KIAG, KROC, and KART. Winds will then slowly back off
overnight, but gusts will continue to exceed 35 knots at times right
through Monday afternoon.

There will be some lake effect rain showers northeast of the lakes
this evening. These will shift southward as the flow becomes more
WSW late tonight, and also will mix with snow across higher terrain.
Expect mainly VFR flight conditions tonight outside of lake effect
showers. Within lake effect bands there will be MVFR in most
locations, with IFR where precipitation changes to snow across
higher terrain. Lake effect rain and snow showers will continue
Monday east of the lakes, with MVFR and local IFR.

Outlook...

Tuesday...Lake effect rain and snow southeast of the lakes with
local MVFR/IFR.
Wednesday...Lingering lake effect snow showers to the southeast of
the Lakes with local MVFR/IFR, ending in the afternoon.
Thursday and Friday...VFR.

&&

.MARINE...
Storm warnings in effect for Lake Erie this evening. Gale warnings
are in effect for the remainder of the Lower Great Lakes through
much of tonight. A Gale Warning is also in effect for portions of
the St. Lawrence River.

The strongest winds will develop following the cold front. This
will produce storms to 50 knots behind the front on Lake Erie,
and high end gales to 45 knots this evening on Lake Ontario.
Lower end gales may continue into Monday before winds start to
gradually subside later Monday and Monday night.

&&

.TIDES/COASTAL FLOODING...
A Lakeshore Flood Warning is in effect for the east end of both
lakes. Model guidance has trended stronger with sustained winds
to 50 knots on Lake Erie and to 40 knots on Lake Ontario. Levels
on Lake Erie are expected to reach around 10 feet above low water
datum at Buffalo. This level requires the addition of Niagara
County into the warning for the Upper Niagara River, with flooding
possible along the shores of Grand Island and Cayuga Island.

Wave action will build on Lake Ontario following the passage of
this front, with lakeshore flooding and erosion this evening
through Monday afternoon at the east end of the lake.

&&

.BUF WATCHES/WARNINGS/ADVISORIES...
NY...High Wind Warning until 1 AM EST Monday for NYZ001>003-007-008-
     010>012-019-085.
     Lakeshore Flood Warning until 1 AM EST Monday for NYZ001-010-
     019-085.
     Lakeshore Flood Warning until 4 PM EST Monday for NYZ006-007.
     Wind Advisory until 1 AM EST Monday for NYZ004>006.
     Wind Advisory until 11 PM EST this evening for NYZ013-014-020-
     021.
MARINE...Storm Warning until 9 PM EST this evening for LEZ040-041.
         Gale Warning until 10 PM EST this evening for LEZ020.
         Small Craft Advisory until 1 PM EST Monday for LOZ030.
         Gale Warning until 7 AM EST Monday for LOZ042-043-062.
         Gale Warning until 4 PM EST Monday for LOZ044-045-063>065.
         Small Craft Advisory until 1 PM EST Monday for SLZ024.
         Gale Warning until 1 AM EST Monday for SLZ022.

&&

SYNOPSIS...RSH
NEAR TERM...Hitchcock
SHORT TERM...SW
LONG TERM...HSK
AVIATION...Hitchcock
MARINE...Hitchcock
TIDES/COASTAL FLOODING...Apffel/Hitchcock
Hazardous weather outlook, Nov 15, 5:23 PM EST, 3 minutes before
Hazardous Weather Outlook
National Weather Service Buffalo NY
523 PM EST Sun Nov 15 2020

NYZ002-003-008-011-012-020-021-162230-
Orleans-Monroe-Lewis-Genesee-Wyoming-Cattaraugus-Allegany-
523 PM EST Sun Nov 15 2020

...HIGH WIND WARNING IN EFFECT UNTIL 1 AM EST MONDAY...

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.

   High Wind Warning.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

No hazardous weather is expected at this time.

.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

NYZ007-162230-
Jefferson-
523 PM EST Sun Nov 15 2020

...HIGH WIND WARNING IN EFFECT UNTIL 1 AM EST MONDAY...
...LAKESHORE FLOOD WARNING IN EFFECT UNTIL 4 PM EST MONDAY...

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.

   High Wind Warning.
   Lakeshore Flood Warning.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

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

   Lakeshore Flood Warning.

.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

NYZ001-010-019-085-162230-
Niagara-Northern Erie-Chautauqua-Southern Erie-
523 PM EST Sun Nov 15 2020

...HIGH WIND WARNING IN EFFECT UNTIL 1 AM EST MONDAY...
...LAKESHORE FLOOD WARNING IN EFFECT UNTIL 1 AM EST MONDAY...

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.

   High Wind Warning.
   Lakeshore Flood Warning.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

No hazardous weather is expected at this time.

.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

NYZ004-162230-
Wayne-
523 PM EST Sun Nov 15 2020

...WIND ADVISORY IN EFFECT UNTIL 1 AM EST MONDAY...
...SEVERE THUNDERSTORM WATCH 510 IN EFFECT UNTIL 6 PM EST THIS
EVENING...

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.

   Wind Advisory.
   Severe Thunderstorm Watch.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

No hazardous weather is expected at this time.

.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

NYZ006-162230-
Oswego-
523 PM EST Sun Nov 15 2020

...WIND ADVISORY IN EFFECT UNTIL 1 AM EST MONDAY...
...LAKESHORE FLOOD WARNING IN EFFECT UNTIL 4 PM EST MONDAY...

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.

   Wind Advisory.
   Lakeshore Flood Warning.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

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

   Lakeshore Flood Warning.

.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

NYZ005-162230-
Northern Cayuga-
523 PM EST Sun Nov 15 2020

...WIND ADVISORY IN EFFECT UNTIL 1 AM EST MONDAY...

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.

   Wind Advisory.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

No hazardous weather is expected at this time.

.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

NYZ013-162230-
Livingston-
523 PM EST Sun Nov 15 2020

...WIND ADVISORY IN EFFECT UNTIL 11 PM EST THIS EVENING...

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.

   Wind Advisory.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

No hazardous weather is expected at this time.

.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

NYZ014-162230-
Ontario-
523 PM EST Sun Nov 15 2020

...WIND ADVISORY IN EFFECT UNTIL 11 PM EST THIS EVENING...
...SEVERE THUNDERSTORM WATCH 510 IN EFFECT UNTIL 6 PM EST THIS
EVENING...

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.

   Wind Advisory.
   Severe Thunderstorm Watch.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

No hazardous weather is expected at this time.

.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

LOZ030-SLZ024-162230-
Lower Niagara River-
Saint Lawrence River from Ogdensburg to Saint Regis-
523 PM EST Sun Nov 15 2020

This Hazardous Weather Outlook is for portions of Lake Ontario and
Saint Lawrence River.

.DAY ONE...Tonight.

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

No hazardous weather is expected at this time.

.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

SLZ022-162230-
Saint Lawrence River from Cape Vincent to Ogdensburg-
523 PM EST Sun Nov 15 2020

...GALE WARNING IN EFFECT UNTIL 1 AM EST MONDAY...

This Hazardous Weather Outlook is for portions of Saint Lawrence
River.

.DAY ONE...Tonight.

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

   Gale Warning.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

No hazardous weather is expected at this time.

.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

LOZ044-045-064-065-162230-
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 Sodus Bay to Mexico Bay-
Lake Ontario open waters from Mexico Bay to the Saint Lawrence River-
523 PM EST Sun Nov 15 2020

...GALE WARNING IN EFFECT UNTIL 4 PM EST MONDAY...

This Hazardous Weather Outlook is for portions of Lake Ontario.

.DAY ONE...Tonight.

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

   Gale Warning.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

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

   Gale Warning.

.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

LOZ042-062-162230-
Lake Ontario nearshore waters from the Niagara River to Hamlin Beach-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
523 PM EST Sun Nov 15 2020

...GALE WARNING IN EFFECT UNTIL 7 AM EST MONDAY...

This Hazardous Weather Outlook is for portions of Lake Ontario.

.DAY ONE...Tonight.

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

   Gale Warning.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

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

   Gale Warning.

.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

LOZ063-162230-
Lake Ontario open waters from Hamlin Beach to Sodus Bay-
523 PM EST Sun Nov 15 2020

...GALE WARNING IN EFFECT UNTIL 4 PM EST MONDAY...
...SEVERE THUNDERSTORM WATCH 510 IN EFFECT UNTIL 6 PM EST THIS
EVENING...

This Hazardous Weather Outlook is for portions of Lake Ontario.

.DAY ONE...Tonight.

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

   Severe Thunderstorm Watch.
   Gale Warning.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

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

   Gale Warning.

.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

LEZ040-041-162230-
Lake Erie nearshore waters from Ripley to Dunkirk-
Lake Erie nearshore waters from Dunkirk to Buffalo-
523 PM EST Sun Nov 15 2020

...STORM WARNING IN EFFECT UNTIL 9 PM EST THIS EVENING...

This Hazardous Weather Outlook is for portions of Lake Erie.

.DAY ONE...Tonight.

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

   Storm Warning.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

No hazardous weather is expected at this time.

.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

LOZ043-162230-
Lake Ontario nearshore waters from Hamlin Beach to Sodus Bay-
523 PM EST Sun Nov 15 2020

...GALE WARNING IN EFFECT UNTIL 7 AM EST MONDAY...
...SEVERE THUNDERSTORM WATCH 510 IN EFFECT UNTIL 6 PM EST THIS
EVENING...

This Hazardous Weather Outlook is for portions of Lake Ontario.

.DAY ONE...Tonight.

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

   Severe Thunderstorm Watch.
   Gale Warning.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

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

   Gale Warning.

.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

LEZ020-162230-
Upper Niagara River and Buffalo Harbor-
523 PM EST Sun Nov 15 2020

...GALE WARNING IN EFFECT UNTIL 10 PM EST THIS EVENING...

This Hazardous Weather Outlook is for portions of Lake Erie.

.DAY ONE...Tonight.

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

   Gale Warning.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

No hazardous weather is expected at this time.

.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

Local storm report, Nov 15, 4:32 PM EST, 54 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BUFFALO NY
432 PM EST SUN NOV 15 2020

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

0329 PM     TSTM WND DMG     1 NNE JAMESTOWN         42.11N 79.22W
11/15/2020                   CHAUTAUQUA         NY   TRAINED SPOTTER

            LARGE SPRUCE TREE DOWN.

&&

HK
Local storm report, Nov 15, 4:37 PM EST, 49 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BUFFALO NY
437 PM EST SUN NOV 15 2020

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

0425 PM     TSTM WND DMG     CLARKSVILLE             42.09N 78.25W
11/15/2020                   ALLEGANY           NY   LAW ENFORCEMENT

            TREES AND LINES DOWN.

&&

HK
Local storm report, Nov 15, 5:07 PM EST, 19 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BUFFALO NY
507 PM EST SUN NOV 15 2020

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

0331 PM     TSTM WND DMG     4 SSE ORCHARD PARK      42.71N 78.73W
11/15/2020                   ERIE               NY   PUBLIC

            TREE DOWN ON GARTMAN RD NEAR SCHERFF ROAD.

0326 PM     TSTM WND DMG     4 W HAMBURG             42.72N 78.92W
11/15/2020                   ERIE               NY   PUBLIC

            TREES DOWN ON HELTZ ROAD.

0316 PM     TSTM WND DMG     3 E ANGOLA              42.64N 78.97W
11/15/2020                   ERIE               NY   PUBLIC

            TREES DOWN ON VERSAILLES PLANK ROAD NEAR NEW
            JERUSALEM ROAD.

&&
Local storm report, Nov 15, 5:11 PM EST, 15 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BUFFALO NY
511 PM EST SUN NOV 15 2020

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

0500 PM     NON-TSTM WND DMG 3 SSW KENMORE           42.93N 78.88W
11/15/2020                   ERIE               NY   PUBLIC

            LARGE LIMB ON HOUSE ON POTOMAC AVE.

0500 PM     NON-TSTM WND DMG 3 ESE KENMORE           42.95N 78.82W
11/15/2020                   ERIE               NY   PUBLIC

            LARGE LIMB ON HOUSE AND CAR ON MINNESOTA
            AVE.

&&
Local storm report, Nov 15, 5:16 PM EST, 10 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BUFFALO NY
516 PM EST SUN NOV 15 2020

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

0510 PM     SEICHE           2 W BUFFALO             42.89N 78.90W
11/15/2020                   ERIE               NY   PUBLIC

            FLOODING IN LASALLE PARK.

&&

HK
Local storm report, Nov 15, 5:25 PM EST, 1 minute before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BUFFALO NY
525 PM EST SUN NOV 15 2020

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

0450 PM     NON-TSTM WND DMG 3 S RAPIDS              43.06N 78.65W
11/15/2020                   ERIE               NY   BROADCAST MEDIA

            TREES DOWN NEAR WOLCOTT ROAD.

&&

HK

The office that day

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

IssuedProductOfficeCountiesLasted
Nov 15, 3:09 AM ESTStorm WarningBUF20 hr
Nov 15, 2:10 PM ESTSpecial Marine WarningBUF84 min
Nov 15, 2:31 PM ESTSpecial Marine WarningBUF89 min
Nov 15, 2:39 PM ESTSevere Thunderstorm WarningBUFCattaraugus, Chautauqua, Erie, Niagara51 min
Nov 15, 3:24 PM ESTSevere Thunderstorm WarningBUFAllegany, Cattaraugus, Chautauqua, Erie, Genesee, Monroe and 3 more66 min
Nov 15, 3:29 PM ESTSpecial Marine WarningBUF91 min
Nov 15, 3:57 PM ESTSevere Thunderstorm WarningBUFAllegany, Genesee, Livingston, Monroe, Ontario, Wayne and 1 more63 min
Nov 15, 4:34 PM ESTSpecial Marine WarningBUF86 min
Nov 15, 4:51 PM ESTSevere Thunderstorm WarningBUFCayuga, Ontario, Oswego, Wayne54 min
Nov 15, 5:36 PM ESTSpecial Marine WarningBUF84 min
Nov 15, 6:04 PM ESTSevere Thunderstorm WarningBUFJefferson, Lewis56 min
Nov 15, 6:55 PM ESTSevere Thunderstorm WarningBUFLewis22 min

Nearby

Severe Thunderstorm Warnings in New York, 2020Every severe thunderstorm warning in 2020

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.