Alert archive / New York / Snow Squall Warnings in 2018

Snow Squall Warning 1, NWS Buffalo, NY

November 10, 2018Cayuga County, Lewis County, Oswego County, New York

NWS Buffalo, NY issued this snow squall warning at Nov 10, 2018, 4:34 PM EST for Cayuga County, Lewis County, Oswego County, New York. It was in force for 41 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 10, 2018, 4:34 PM EST (21:34 UTC)
Expired: Nov 10, 2018, 5:15 PM EST
In force: 41 min
Issued by: NWS Buffalo, NY
Area: Storm-based polygon

Counties Cayuga County, NY, Lewis County, NY, Oswego County, NY

The radar

The Ft Drum radar (KTYX), 43 km from the middle of the area, began a volume at 21:38 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, 9.6 hours before the alert went out and 197 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: 802 m above ground
0-6 km bulk shear: 100 kt
0-1 km storm-relative helicity: -260 m²/s²
0-3 km storm-relative helicity: 187 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

493 
WWUS51 KBUF 102135
SQWBUF

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Snow Squall Warning
National Weather Service Buffalo NY
434 PM EST Sat Nov 10 2018

NYC011-049-075-102215-
/O.NEW.KBUF.SQ.W.0001.181110T2134Z-181110T2215Z/
Lewis NY-Cayuga NY-Oswego NY-
434 PM EST Sat Nov 10 2018

The National Weather Service in Buffalo has issued a

* Snow Squall Warning for...
  Southwestern Lewis County in central New York...
  Cayuga County in central New York...
  Oswego County in central New York...

* Until 515 PM EST.

* At 434 PM EST, a dangerous snow squall was located along a line
  extending from 20 miles northwest of Oswego to 7 miles north of
  Redfield, moving southeast at 30 mph.

  HAZARD...Extremely poor visibility in heavy snow and blowing snow. 
           Wind gusts up to 30 mph.

  SOURCE...Radar indicated.

  IMPACT...Dangerous life-threatening travel.

* 

This includes Interstate 81 between exits 33 and 37.
 
Locations impacted include...
Oswego, Fulton, Fair Haven Beach State Park, Sandy Island Beach State
Park, Pulaski, Central Square, Redfield, Selkirk Shores State Park,
Highmarket and Mexico Point State Park.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Serious injuries and deaths may result from people exiting their
vehicles during a snow squall. Drivers may not be able to see you or
to stop! If stopped on the roadway or involved in an accident,
quickly exit your vehicle move as far away from the roadway as
possible ONLY when it is safe to do so. Do not stand along or near
the roadway, since approaching vehicles may be unable to maintain
control.

&&

LAT...LON 4347 7542 4342 7553 4348 7581 4333 7589
      4332 7586 4329 7587 4332 7669 4342 7670
      4344 7667 4356 7645 4356 7628 4366 7626
      4364 7539
TIME...MOT...LOC 2134Z 284DEG 34KT 4363 7684 4364 7582 

$$

RSH

The office that day

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

Issued	Product	Office	Counties	Lasted
Nov 10, 3:19 AM EST	Winter Storm Warning	BUF	Cattaraugus, Chautauqua, Erie, Wyoming	15 hr
Nov 10, 3:20 AM EST	Wind Advisory	BUF	Cayuga, Monroe, Wayne	15 hr
Nov 10, 7:35 AM EST	Special Weather Statement	BUF	Allegany, Cattaraugus, Chautauqua, Wyoming	85 min
Nov 10, 9:06 AM EST	Special Weather Statement	BUF	Chautauqua, Livingston, Wyoming	114 min
Nov 10, 12:46 PM EST	Special Weather Statement	BUF	Jefferson, Lewis	59 min
Nov 10, 1:47 PM EST	Special Weather Statement	BUF	Jefferson, Lewis	58 min
Nov 10, 5:12 PM EST	Snow Squall Warning	BUF	Cayuga, Lewis, Oswego	48 min

Nearby

Snow Squall Warnings in New York, 2018 Every snow squall warning 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.