Alert archive / New York / Special Weather Statements in 2021

Special Weather Statement, NWS Buffalo, NY

January 19, 2021Chautauqua County, New York

NWS Buffalo, NY issued this special weather statement at Jan 19, 2021, 7:45 AM EST for Chautauqua County, New York. It was in force for 90 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, 7:45 AM EST (12:45 UTC)
Expired: Jan 19, 2021, 9:15 AM EST
In force: 90 min
Issued by: NWS Buffalo, NY

County Chautauqua County, NY

The radar

The Buffalo radar (KBUF), 76 km from the middle of the area, began a volume at 12:44 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, 0.8 hours before the alert went out and 77 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.

970 
WWUS81 KBUF 191245
SPSBUF

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

NYZ019-020-085-191415-
Chautauqua-Cattaraugus-Southern Erie-
745 AM EST Tue Jan 19 2021

...A BAND OF LAKE EFFECT SNOW WILL AFFECT NORTHWESTERN CATTARAUGUS...
SOUTHWESTERN ERIE AND NORTHERN CHAUTAUQUA COUNTIES...

At 743 AM EST, A band of lake effect snow producing snow fall rates 
of 1 to 2 inches per hour is along the Lake Erie shoreline of 
Chautauqua county inland to southern Erie and northwest Cattaraugus 
counties. The band will remain nearly stationary through 9 AM.

Locations impacted include...
Dunkirk, Fredonia, Eden, Westfield, Gowanda, Silver Creek, Angola,
Mayville, North Collins, Ashford Hollow, Lake Erie State Park,
Evangola State Park, SUNY Fredonia, Collins, Portland, Sheridan,
Ripley, Stockton, Dayton and Brocton.

 This includes Interstate 90 between exits 61 and 58.
 
Icy roads are possible as the snow melts on the roads then quickly
refreezes.

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 4244 7950 4253 7939 4254 7934 4257 7927
      4259 7920 4261 7917 4267 7880 4237 7866
      4220 7976 4227 7976 4228 7973 4231 7977

$$

HSK

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, 9:09 AM EST	Special Weather Statement	BUF	Jefferson, Lewis	51 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.