Alert archive / New York / Special Weather Statements in 2021

Special Weather Statement, NWS Buffalo, NY

January 22, 2021Monroe County, Ontario County, Wayne County, New York

NWS Buffalo, NY issued this special weather statement at Jan 22, 2021, 10:18 AM EST for Monroe County, Ontario County, Wayne County, New York. It was in force for 72 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 22, 2021, 10:18 AM EST (15:18 UTC)
Expired: Jan 22, 2021, 11:30 AM EST
In force: 72 min
Issued by: NWS Buffalo, NY

Counties Monroe County, NY, Ontario County, NY, Wayne County, NY

The radar

The Buffalo radar (KBUF), 124 km from the middle of the area, began a volume at 15:19 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, 3.3 hours before the alert went out and 121 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: 919 m above ground
0-6 km bulk shear: 55 kt
0-1 km storm-relative helicity: 76 m²/s²
0-3 km storm-relative helicity: 83 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

621 
WWUS81 KBUF 221518
SPSBUF

Special Weather Statement
National Weather Service Buffalo NY
1018 AM EST Fri Jan 22 2021

NYZ002>004-011>014-221630-
Ontario-Livingston-Wyoming-Orleans-Wayne-Genesee-Monroe-
1018 AM EST Fri Jan 22 2021

...AN AREA OF HEAVY SNOW WILL AFFECT WAYNE...NORTHEASTERN WYOMING...
NORTHERN LIVINGSTON...EASTERN ORLEANS...EASTERN GENESEE...MONROE AND
ONTARIO COUNTIES...

At 1016 AM EST, a line of snow showers dropping southeast from Lake 
Ontario this morning will produce a burst of snow which will reduce 
visibility to below a half mile at times. Although this will only 
produce around an inch or two of snow, it will result in slick 
travel conditions this morning. 

Locations impacted include...
Rochester, Greece, Irondequoit, Chili, Geneva, Canandaigua,
Brockport, Geneseo, East Rochester, Hilton, Webster, Fairport,
Brighton, Gates-North Gates, Hamlin Beach State Park, Fair Haven
Beach State Park, Ontario, Henrietta, Penfield and Newark.

 This includes the following highways...
 Interstate 390 between exits 8 and 12.
 Interstate 90 between exits 47 and 42.

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 4281 7811 4342 7807 4339 7775 4328 7754
      4332 7735 4333 7714 4331 7697 4336 7679
      4335 7669 4332 7672 4310 7670 4303 7672
      4301 7696 4276 7698 4276 7721

$$

Mitchell

The office that day

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

Issued	Product	Office	Counties	Lasted
Jan 22, 3:25 AM EST	Lake Effect Snow Warning	BUF	Jefferson, Lewis, Oswego	10 hr
Jan 22, 3:25 AM EST	Winter Weather Advisory	BUF	Cayuga, Monroe, Orleans, Oswego, Wayne	31 hr
Jan 22, 3:38 AM EST	Small Craft Advisory	BUF		53 hr
Jan 22, 4:51 AM EST	Special Weather Statement	BUF	Lewis, Oswego	114 min
Jan 22, 6:31 AM EST	Special Weather Statement	BUF	Oswego	89 min
Jan 22, 7:06 AM EST	Special Weather Statement	BUF	Niagara	54 min
Jan 22, 8:04 AM EST	Special Weather Statement	BUF	Niagara	56 min
Jan 22, 8:59 AM EST	Special Weather Statement	BUF	Monroe	76 min
Jan 22, 9:04 AM EST	Special Weather Statement	BUF	Wayne	56 min
Jan 22, 11:01 AM EST	Special Weather Statement	BUF	Allegany, Cattaraugus	59 min
Jan 22, 3:41 PM EST	Special Weather Statement	BUF	Oswego	49 min
Jan 22, 4:54 PM EST	Special Weather Statement	BUF	Oswego	66 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.