Alert archive / New York / Special Weather Statements in 2021

Special Weather Statement, NWS Buffalo, NY

November 2, 2021Lewis County, New York

NWS Buffalo, NY issued this special weather statement at Nov 2, 2021, 11:18 AM EDT for Lewis County, New York. It was in force for 27 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
Nov 2, 2021, 11:18 AM EDT (15:18 UTC)
Expired
Nov 2, 2021, 11:45 AM EDT
In force
27 min
Issued by
NWS Buffalo, NY

County Lewis County, NY

The radar

The Ft Drum radar (KTYX), 9 km from the middle of the area, began a volume at 15:18 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, 3.3 hours before the alert went out and 200 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 2021-11-02Temperature 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 2021-11-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 109 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
1289 m above ground
0-6 km bulk shear
77 kt
0-1 km storm-relative helicity
109 m²/s²
0-3 km storm-relative helicity
90 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

872 
WWUS81 KBUF 021518
SPSBUF

Special Weather Statement
National Weather Service Buffalo NY
1118 AM EDT Tue Nov 2 2021

NYZ007-008-021545-
Jefferson-Lewis-
1118 AM EDT Tue Nov 2 2021

...LAKE EFFECT SNOW CONTINUES OVER HIGHER TERRAIN OF SOUTHERN 
JEFFERSON AND CENTRAL LEWIS COUNTY...

At 1115 AM, regional radar shows a band of lake effect rain and snow 
from Sackets Harbor and Adams east to Copenhagen and Croghan. This 
band of lake effect will drift north through Noon today before 
beginning to diminish. Accumulating snow has already occurred over 
portions of the Tug Hill this morning. Across the higher terrain, 
expect a slushy coating to an inch of snow as this band moves 
through the area. Untreated roads and those not heavily traveled 
could have a few slick spots as temperatures are still in the lower 
to middle 30s. Primary roads and those roads across the lower 
terrain will likely remain just wet.  

Locations impacted include...
Watertown, Carthage, Lowville, West Carthage, Adams, Adams Center,
Barnes Corners, Denmark, New Bremen, Watson, Sackets Harbor,
Martinsburg, Smithville, Rodman, Lorraine, Copenhagen, Croghan,
Castorland, Ellisburg and Worth.

Conditions can deteriorate rapidly in winter weather situations. 
Slow down and allow extra time when traveling.

LAT...LON 4373 7614 4394 7617 4399 7516 4371 7512

$$

JLA

The office that day

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

IssuedProductOfficeCountiesLasted
Nov 2, 2:18 PM EDTWinter Weather AdvisoryBUFCattaraugus, Chautauqua, Lewis, Oswego21 hr

Nearby

Special Weather Statements in New York, 2021Every special weather statement in 2021

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.