Alert archive / New York / Special Weather Statements in 2021

Special Weather Statement, NWS Buffalo, NY

December 7, 2021Erie County, New York

NWS Buffalo, NY issued this special weather statement at Dec 7, 2021, 4:16 PM EST for Erie County, New York. It was in force for 89 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: Dec 7, 2021, 4:16 PM EST (21:16 UTC)
Expired: Dec 7, 2021, 5:45 PM EST
In force: 89 min
Issued by: NWS Buffalo, NY

County Erie County, NY

The radar

The Buffalo radar (KBUF), 34 km from the middle of the area, began a volume at 21:18 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, 9.3 hours before the alert went out and 34 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: 1055 m above ground
0-6 km bulk shear: 71 kt
0-1 km storm-relative helicity: 11 m²/s²
0-3 km storm-relative helicity: 124 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

619 
WWUS81 KBUF 072116
SPSBUF

Special Weather Statement
National Weather Service Buffalo NY
416 PM EST Tue Dec 7 2021
 
NYZ010-019-085-072245-
Chautauqua NY-Southern Erie NY-Northern Erie NY-
416 PM EST Tue Dec 7 2021

...A LAKE EFFECT SNOW BAND WILL AFFECT PARTS OF NORTHERN CHAUTAUQUA 
AND SOUTHERN ERIE COUNTIES...

HAZARDS...A lake effect snow band which can rapidly reduce visibility
to less than a quarter of a mile. This lake effect snow band is
producing heavy snow at the rate of 1 inch per hour.

LOCATION AND MOVEMENT...At 411 PM EST, a lake effect snow band was 
strengthening between Sliver Creek and West Seneca, and extending 
inland to the Boston Hills. The band will impact Interstate 90. The 
lake effect will remain nearly stationary through 6 p.m.

LOCATIONS IMPACTED INCLUDE...
West Seneca, Lackawanna, Depew, Dunkirk, Lancaster, Hamburg, East 
Aurora, Evans, Elma, Boston, Eden, Marilla, Colden, Orchard Park, 
Silver Creek, Alden, Blasdell and Angola.

This includes Interstate 90 between exits 58 and 54.
 
SAFETY INFO...
Conditions can deteriorate rapidly in winter weather situations. Be
prepared for snow or ice covered roads. Slow down and allow extra
time to reach your destination.

&&

LAT...LON 4259 7919 4272 7909 4277 7897 4280 7892
      4282 7893 4297 7847 4287 7848 4287 7849
      4264 7847 4253 7901 4254 7906 4252 7906
      4245 7942 4251 7943
TIME...MOT...LOC 2111Z 217DEG 1KT 4261 7911 
$$

Apffel

The office that day

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

Issued	Product	Office	Counties	Lasted
Dec 6, 7:29 PM EST	Special Weather Statement	BUF	Allegany, Cattaraugus, Chautauqua	91 min
Dec 7, 10:28 AM EST	Winter Storm Warning	BUF	Oswego	11 hr
Dec 7, 5:50 PM EST	Special Weather Statement	BUF	Erie	85 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.