Alert archive / New York / Special Weather Statements in 2021

Special Weather Statement, NWS Buffalo, NY

November 28, 2021Cattaraugus County, Chautauqua County, New York

NWS Buffalo, NY issued this special weather statement at Nov 28, 2021, 3:00 PM EST for Cattaraugus County, 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
Nov 28, 2021, 3:00 PM EST (20:00 UTC)
Expired
Nov 28, 2021, 4:30 PM EST
In force
90 min
Issued by
NWS Buffalo, NY

Counties Cattaraugus County, NY, Chautauqua County, NY

The radar

The Buffalo radar (KBUF), 84 km from the middle of the area, began a volume at 20:04 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, 8.0 hours before the alert went out and 84 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 12:00Z on 2021-11-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 12:00Z on 2021-11-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 1 square meters per square second.19395878Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
525 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
1 m²/s²
0-3 km storm-relative helicity
76 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

797 
WWUS81 KBUF 282000
SPSBUF

Special Weather Statement
National Weather Service Buffalo NY
300 PM EST Sun Nov 28 2021
 
NYZ012-019>021-085-282130-
Chautauqua NY-Cattaraugus NY-Allegany NY-Southern Erie NY-Wyoming NY-
300 PM EST Sun Nov 28 2021

...A BAND OF HEAVY SNOW WILL AFFECT PARTS OF CHAUTAUQUA... 
CATTARAUGUS...AND ALLEGANY COUNTIES...

HAZARDS...A band of heavy snow which can rapidly reduce visibility to
less than a quarter of a mile.

LOCATION AND MOVEMENT...At 258 PM EST, a band of heavy snow was near
Lake Erie State Park, or 9 miles southwest of Fredonia moving east at
65 MPH.

LOCATIONS IMPACTED INCLUDE...
Jamestown, Dunkirk, Fredonia, Salamanca, Allegany State Park,
Springville, Westfield, Lakewood, Gowanda, Falconer, Ashford, Arcade,
Franklinville, Mayville, Belfast, Rushford, Long Point State Park,
Jamestown West, SUNY Fredonia and Ashford Hollow.

This includes the following highways...
 Interstate 90 between exits 61 and 59.
 Interstate 86 between exits 4 and 17, and between exits 20 and 21.

SAFETY INFO...
Use extra caution if you must travel into or through this band of
heavy snow. Rapid changes in visibility and potentially slick roads
may lead to accidents.

&&

LAT...LON 4227 7976 4228 7973 4230 7975 4253 7922
      4255 7814 4229 7809 4205 7907 4212 7976
TIME...MOT...LOC 1958Z 267DEG 55KT 4237 7949 
$$

EAJ

The office that day

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

IssuedProductOfficeCountiesLasted
Nov 27, 10:18 PM ESTSmall Craft AdvisoryBUF30 hr
Nov 28, 10:13 AM ESTLake Effect Snow WarningBUFCattaraugus, Chautauqua18 hr
Nov 28, 12:03 PM ESTSpecial Weather StatementBUFErie87 min
Nov 28, 1:59 PM ESTSpecial Weather StatementBUFNiagara61 min
Nov 28, 4:26 PM ESTSpecial Weather StatementBUFCattaraugus, Chautauqua94 min
Nov 28, 6:06 PM ESTSpecial Weather StatementBUFAllegany, Cattaraugus, Chautauqua84 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.