Alert archive / New York / Special Weather Statements in 2021

Special Weather Statement, NWS Buffalo, NY

January 19, 2021Erie County, New York

NWS Buffalo, NY issued this special weather statement at Jan 19, 2021, 3:09 AM EST for Erie County, New York. It was in force for 81 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, 3:09 AM EST (08:09 UTC)
Expired
Jan 19, 2021, 4:30 AM EST
In force
81 min
Issued by
NWS Buffalo, NY

County Erie County, NY

The radar

The Buffalo radar (KBUF), 74 km from the middle of the area, began a volume at 08:10 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, 8.2 hours before the alert went out and 75 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-pSkew-T log-p diagram, Buffalo Intl Airport, NY at 00:00Z on 2021-01-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Buffalo Intl Airport, NY at 00:00Z on 2021-01-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 43 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
1 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
525 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
43 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.

710 
WWUS81 KBUF 190809
SPSBUF

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

NYZ010>012-019-020-085-190930-
Chautauqua-Cattaraugus-Southern Erie-Wyoming-Genesee-Northern Erie-
309 AM EST Tue Jan 19 2021

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

At 304 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 from 
Ripley to Hamburg and inland across southern Erie county. Some 
thunder and lightning are possible within this band of snow. The 
band will remain nearly stationary through 430 AM.

Locations impacted include...
West Seneca, Lackawanna, Dunkirk, Fredonia, Hamburg, East Aurora,
Darien Lakes State Park, Evans, Elma, Boston, Eden, Marilla,
Springville, Bennington, Colden, Orchard Park, Westfield, Gowanda,
Silver Creek and Alden.

This includes Interstate 90 between exits 61 and 56.
 
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 4228 7973 4230 7975 4238 7964 4244 7950
      4253 7939 4259 7919 4273 7908 4293 7836
      4253 7840 4225 7976 4227 7976

$$

HSK

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 18, 8:57 PM ESTSpecial Weather StatementBUFChautauqua48 min
Jan 18, 9:50 PM ESTSpecial Weather StatementBUFErie85 min
Jan 19, 4:32 AM ESTSpecial Weather StatementBUFErie88 min
Jan 19, 6:13 AM ESTSpecial Weather StatementBUFChautauqua, Erie, Wyoming92 min
Jan 19, 7:45 AM ESTSpecial Weather StatementBUFChautauqua90 min
Jan 19, 9:09 AM ESTSpecial Weather StatementBUFJefferson, Lewis51 min

Nearby

Special Weather Statements in New York, 2021Every 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.