Alert archive / New York / Special Weather Statements in 2018

Special Weather Statement, NWS Buffalo, NY

March 15, 2018Livingston County, Wyoming County, New York

NWS Buffalo, NY issued this special weather statement at Mar 15, 2018, 11:21 PM EDT for Livingston County, Wyoming County, New York. It was in force for 69 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: Mar 15, 2018, 11:21 PM EDT (03:21 UTC)
Expired: Mar 16, 2018, 12:30 AM EDT
In force: 69 min
Issued by: NWS Buffalo, NY

Counties Livingston County, NY, Wyoming County, NY

The radar

The Buffalo radar (KBUF), 63 km from the middle of the area, began a volume at 03:21 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, 3.4 hours before the alert went out and 60 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: 759 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 105 m²/s²
0-3 km storm-relative helicity: 105 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

446 
WWUS81 KBUF 160321
SPSBUF

Special Weather Statement
National Weather Service Buffalo NY
1121 PM EDT THU MAR 15 2018

NYZ010-012>014-021-085-160430-
Allegany-Ontario-Livingston-Southern Erie-Wyoming-Northern Erie-
1121 PM EDT THU MAR 15 2018

...AN AREA OF HEAVY SNOW WILL AFFECT WYOMING...EAST CENTRAL ERIE...
SOUTHERN LIVINGSTON...NORTHERN ALLEGANY AND SOUTHWESTERN ONTARIO
COUNTIES...

At 1118 PM EDT, an area of heavy snow producing snowfall rates of 1 
to 2 inches per hour was located along a line extending from East 
Aurora to near Arkport. Expect difficult travel conditions with 
roads becoming quickly snow covered and very slick, as well as very 
poor visibilities less than a quarter of a mile.

Locations impacted include...
East Aurora, Dansville, Letchworth State Park, Marilla, Perry,
Warsaw, Bennington, Colden, Mount Morris and Alden.

This includes the following highways...
 Interstate 390 between exits 4 and 7.
 Interstate 86 near exit 33.

LAT...LON 4250 7831 4252 7831 4252 7836 4269 7883
      4289 7852 4288 7846 4287 7846 4287 7841
      4265 7737 4258 7737 4258 7766 4253 7766
      4253 7772 4229 7774
TIME...MOT...LOC 0318Z 029DEG 4KT 4275 7860 4243 7773 
$$

Church

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 15, 9:55 PM EDT	Special Weather Statement	BUF	Genesee, Livingston	35 min
Mar 15, 10:32 PM EDT	Special Weather Statement	BUF	Erie, Livingston, Wyoming	43 min
Mar 16, 5:18 AM EDT	Special Weather Statement	BUF	Allegany, Cattaraugus, Chautauqua, Erie, Genesee, Livingston and 2 more	57 min

Nearby

Special Weather Statements in New York, 2018 Every special weather statement in 2018

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.