Alert archive / New York / Special Weather Statements in 2016

Special Weather Statement, NWS Buffalo, NY

December 9, 2016Genesee County, New York

NWS Buffalo, NY issued this special weather statement at Dec 9, 2016, 7:21 PM EST for Genesee County, New York. It was in force for 84 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 9, 2016, 7:21 PM EST (00:21 UTC)
Expired: Dec 9, 2016, 8:45 PM EST
In force: 84 min
Issued by: NWS Buffalo, NY

County Genesee County, NY

The radar

The Buffalo radar (KBUF), 72 km from the middle of the area, began a volume at 00:25 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, 0.4 hours before the alert went out and 69 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: 1073 m above ground
0-6 km bulk shear: 16 kt
0-1 km storm-relative helicity: 18 m²/s²
0-3 km storm-relative helicity: 28 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

468 
WWUS81 KBUF 100021
SPSBUF

Special Weather Statement
National Weather Service Buffalo NY
721 PM EST FRI DEC 9 2016

NYZ002-003-011-013-100145-
Orleans-Livingston-Monroe-Genesee-
721 PM EST FRI DEC 9 2016

...A BAND OF LAKE EFFECT SNOW WILL AFFECT NORTHERN
LIVINGSTON...NORTHERN GENESEE...SOUTHERN MONROE AND SOUTHEASTERN
ORLEANS COUNTIES...

At 717 PM EST, A band of lake effect snow producing snow fall rates
of 1 to 2 inches per hour was located from southern Orleans and
northern Genesee counties eastward across southern Monroe and
northern Livingston counties. This band of heavy snow will remain
nearly stationary through mid evening before weakening.

Locations impacted include...
Henrietta, Le Roy, Avon, Honeoye Falls, Bergen, Elba, Barre,
Caledonia, Lima, Scottsville, Churchville and Oakfield.

This includes the following highways...
 Interstate 390 between exits 10 and 12.
 Interstate 90 between exits 47 and 46.

Use extra caution if you must travel into or through this dangerous
snow squall. Rapid changes in visibility and potentially slick roads
are likely to lead to accidents. Consider delaying travel until the
squall passes your location.

LAT...LON 4310 7842 4320 7827 4305 7747 4294 7754
      4294 7758 4291 7756 4285 7760
$$

HITCHCOCK

The office that day

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

Issued	Product	Office	Counties	Lasted
Dec 10, 3:43 AM EST	Small Craft Advisory	BUF		24 hr
Dec 10, 5:21 AM EST	Special Weather Statement	BUF	Cattaraugus, Chautauqua	3 hr
Dec 10, 9:44 AM EST	Special Weather Statement	BUF	Chautauqua	91 min
Dec 10, 2:49 PM EST	Winter Weather Advisory	BUF	Allegany, Cattaraugus, Cayuga, Chautauqua, Erie, Genesee and 10 more	43 hr

Nearby

Special Weather Statements in New York, 2016 Every special weather statement in 2016

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.