Alert archive / New York / Special Weather Statements in 2021

Special Weather Statement, NWS Buffalo, NY

January 19, 2021Jefferson County, Lewis County, New York

NWS Buffalo, NY issued this special weather statement at Jan 19, 2021, 9:09 AM EST for Jefferson County, Lewis County, New York. It was in force for 51 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: Jan 19, 2021, 9:09 AM EST (14:09 UTC)
Expired: Jan 19, 2021, 10:00 AM EST
In force: 51 min
Issued by: NWS Buffalo, NY

Counties Jefferson County, NY, Lewis County, NY

The radar

The Ft Drum radar (KTYX), 41 km from the middle of the area, began a volume at 14:10 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 12:00Z, 2.2 hours before the alert went out and 225 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 893 m above ground
0-6 km bulk shear: 24 kt
0-1 km storm-relative helicity: 64 m²/s²
0-3 km storm-relative helicity: 93 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

236 
WWUS81 KBUF 191409
SPSBUF

Special Weather Statement
National Weather Service Buffalo NY
909 AM EST Tue Jan 19 2021

NYZ006>008-191500-
Jefferson-Oswego-Lewis-
909 AM EST Tue Jan 19 2021

...AN AREA OF HEAVY SNOW WILL AFFECT JEFFERSON...LEWIS AND
NORTHEASTERN OSWEGO COUNTIES...

At 903 AM EST, an area of heavy lake effect snow will quickly move 
inland across the area this morning. This band will rapidly create 
snow covered roadways and also reduce visibilities down to less than 
a quarter of a mile, especially impacting Interstate 81 from 
Pulaski to Watertown. 

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

 This includes Interstate 81 between exits 36 and 48.
 
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 4349 7538 4355 7646 4357 7636 4356 7631
      4358 7626 4369 7626 4378 7629 4383 7636
      4387 7635 4384 7645 4387 7650 4391 7650
      4396 7644 4395 7634 4402 7636 4405 7641
      4410 7643 4413 7636 4418 7536 4351 7534

$$

Reynolds

The office that day

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

Issued	Product	Office	Counties	Lasted
Jan 18, 8:57 PM EST	Special Weather Statement	BUF	Chautauqua	48 min
Jan 18, 9:50 PM EST	Special Weather Statement	BUF	Erie	85 min
Jan 19, 3:09 AM EST	Special Weather Statement	BUF	Erie	81 min
Jan 19, 4:32 AM EST	Special Weather Statement	BUF	Erie	88 min
Jan 19, 6:13 AM EST	Special Weather Statement	BUF	Chautauqua, Erie, Wyoming	92 min
Jan 19, 7:45 AM EST	Special Weather Statement	BUF	Chautauqua	90 min

Nearby

Special Weather Statements in New York, 2021 Every 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.