Alert archive / New York / Special Weather Statements in 2021

Special Weather Statement, NWS Buffalo, NY

January 17, 2021Erie County, New York

NWS Buffalo, NY issued this special weather statement at Jan 17, 2021, 8:57 PM EST for Erie County, New York. It was in force for 108 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 17, 2021, 8:57 PM EST (01:57 UTC)
Expired: Jan 17, 2021, 10:45 PM EST
In force: 108 min
Issued by: NWS Buffalo, NY

County Erie County, NY

The radar

The Buffalo radar (KBUF), 49 km from the middle of the area, began a volume at 02:01 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 00:00Z, 2.0 hours before the alert went out and 50 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: 892 m above ground
0-6 km bulk shear: 9 kt
0-1 km storm-relative helicity: -28 m²/s²
0-3 km storm-relative helicity: -13 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

310 
WWUS81 KBUF 180157
SPSBUF

Special Weather Statement
National Weather Service Buffalo NY
857 PM EST Sun Jan 17 2021

NYZ010-019-020-085-180345-
Chautauqua-Cattaraugus-Southern Erie-Northern Erie-
857 PM EST Sun Jan 17 2021

...AN AREA OF HEAVY SNOW WILL AFFECT NORTHWESTERN CATTARAUGUS...
SOUTHERN ERIE AND NORTHEASTERN CHAUTAUQUA COUNTIES...

At 856 PM EST, an area of heavy lake effect snow was centered along 
a line extending from near Lake Erie Beach to Holland. This band of 
lake effect snow will remain nearly stationary for the next few 
hours. Snowfall rates of 1 to 2 inch per hour will be possible at 
times within this band of lake effect snow. The northern edge of 
this band of snow will be located along a line from Athol Springs to 
Wales Center, and the southern edge of the lake band will be along a 
line from near Dunkirk to Springville. 

Locations impacted include...
Dunkirk, Fredonia, Hamburg, East Aurora, Evans, Boston, Eden,
Springville, Colden, Orchard Park, Gowanda, Silver Creek, Blasdell,
Angola, North Collins, Woodlawn Beach State Park, Chaffee, Lake Erie
State Park, Derby and East Concord.

 This includes Interstate 90 between exits 59 and 56.
 
Icy roads are possible as some of the snow melts on the roads and 
then refreezes as temperatures cool.

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 4253 7939 4254 7934 4257 7927 4259 7919
      4264 7916 4267 7912 4272 7909 4276 7898
      4280 7892 4281 7849 4245 7846 4242 7946
      4248 7947

$$

Welch

The office that day

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

Issued	Product	Office	Counties	Lasted
Jan 18, 3:25 AM EST	Winter Storm Watch	BUF	Jefferson, Lewis	10 hr
Jan 18, 3:25 AM EST	Winter Weather Advisory	BUF	Allegany, Cattaraugus, Erie, Genesee	39 hr
Jan 18, 3:35 AM EST	Small Craft Advisory	BUF		4 days
Jan 18, 1:28 PM EST	Lake Effect Snow Warning	BUF	Jefferson, Lewis, Oswego	41 hr

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.