Alert archive / New York / Snow Squall Warnings in 2020

Snow Squall Warning 4, NWS Buffalo, NY

January 8, 2020Cayuga County, Ontario County, Wayne County, New York

NWS Buffalo, NY issued this snow squall warning at Jan 8, 2020, 8:52 AM EST for Cayuga County, Ontario County, Wayne County, New York. It was in force for 38 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 8, 2020, 8:52 AM EST (13:52 UTC)
Expired: Jan 8, 2020, 9:30 AM EST
In force: 38 min
Issued by: NWS Buffalo, NY
Area: Storm-based polygon

Counties Cayuga County, NY, Ontario County, NY, Wayne County, NY

The nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 1.9 hours before the alert went out and 149 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: 5 J/kg
Mixed-layer CIN: -10 J/kg
Mixed-layer LCL: 774 m above ground
0-6 km bulk shear: 32 kt
0-1 km storm-relative helicity: -5 m²/s²
0-3 km storm-relative helicity: 65 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

153 
WWUS51 KBUF 081353
SQWBUF

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Snow Squall Warning
National Weather Service Buffalo NY
852 AM EST Wed Jan 8 2020

NYC011-069-117-081430-
/O.NEW.KBUF.SQ.W.0004.200108T1352Z-200108T1430Z/
Wayne NY-Cayuga NY-Ontario NY-
852 AM EST Wed Jan 8 2020

The National Weather Service in Buffalo has issued a

* Snow Squall Warning for...
  Wayne County in western New York...
  Cayuga County in central New York...
  Northeastern Ontario County in western New York...

* Until 930 AM EST.

* At 852 AM EST, a dangerous snow squall was located near Newark, or
  16 miles northeast of Canandaigua, moving southeast at 35 mph.

  HAZARD...Poor visibility in snow and blowing snow. Wind gusts up 
           to 35 mph.

  SOURCE...Radar indicated.

  IMPACT...Expect hazardous road conditions.

* This includes Interstate 90 between exits 43 and 40.
 
Locations impacted include...
Geneva, Newark, Lyons, Palmyra, Clifton Springs, Clyde, Phelps,
Sodus, Weedsport and Cato.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow Down! Rapid changes in visibility and road conditions are
expected with this dangerous snow squall. Be alert for sudden
whiteout conditions.

&&

LAT...LON 4295 7733 4332 7700 4331 7697 4332 7694
      4313 7647 4311 7647 4310 7650 4303 7650
      4301 7696 4287 7696 4286 7698 4285 7698
TIME...MOT...LOC 1352Z 294DEG 30KT 4309 7711 

$$

Apffel

The office that day

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

Issued	Product	Office	Counties	Lasted
Jan 7, 9:26 PM EST	Gale Warning	BUF		23 hr
Jan 8, 4:45 AM EST	Special Weather Statement	BUF	Lewis	60 min
Jan 8, 8:06 AM EST	Snow Squall Warning	BUF	Genesee, Livingston, Monroe, Ontario, Orleans, Wayne	54 min
Jan 8, 8:20 AM EST	Snow Squall Warning	BUF	Oswego	55 min
Jan 8, 8:33 AM EST	Snow Squall Warning	BUF	Cattaraugus, Chautauqua	57 min
Jan 8, 9:27 AM EST	Special Weather Statement	BUF	Lewis	63 min
Jan 8, 9:32 AM EST	Special Weather Statement	BUF	Allegany, Cattaraugus	58 min
Jan 8, 9:56 AM EST	Special Weather Statement	BUF	Oswego	34 min
Jan 8, 12:01 PM EST	Special Weather Statement	BUF	Monroe, Wayne	74 min
Jan 8, 1:18 PM EST	Special Weather Statement	BUF	Monroe, Orleans	57 min
Jan 8, 2:58 PM EST	Special Weather Statement	BUF	Erie	32 min
Jan 8, 3:29 PM EST	Special Weather Statement	BUF	Wyoming	31 min

Nearby

Snow Squall Warnings in New York, 2020 Every snow squall 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; the sounding from the Mesonet's radiosonde archive.