Alert archive / New York / Special Weather Statements in 2021

Special Weather Statement, NWS Buffalo, NY

June 4, 2021Cattaraugus County, New York

NWS Buffalo, NY issued this special weather statement at Jun 4, 2021, 1:53 PM EDT for Cattaraugus County, New York. It was in force for 52 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: Jun 4, 2021, 1:53 PM EDT (17:53 UTC)
Expired: Jun 4, 2021, 2:45 PM EDT
In force: 52 min
Issued by: NWS Buffalo, NY

County Cattaraugus County, NY

The radar

The Buffalo radar (KBUF), 61 km from the middle of the area, began a volume at 17:55 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, 5.9 hours before the alert went out and 58 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: 15 J/kg
Mixed-layer CIN: -130 J/kg
Mixed-layer LCL: 811 m above ground
0-6 km bulk shear: 17 kt
0-1 km storm-relative helicity: 83 m²/s²
0-3 km storm-relative helicity: 85 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

251 
WWUS81 KBUF 041753
SPSBUF

Special Weather Statement
National Weather Service Buffalo NY
153 PM EDT Fri Jun 4 2021

NYZ020-041845-
Cattaraugus-
153 PM EDT Fri Jun 4 2021

...A STRONG THUNDERSTORM WILL AFFECT NORTHEASTERN CATTARAUGUS
COUNTY...

At 152 PM EDT, a strong thunderstorm was located near Ashford Hollow,
or 19 miles north of Salamanca, moving east at 10 mph.

Winds in excess of 35 mph, pea size hail, and brief torrential 
downpours are possible with this storm.

Locations impacted include...
Franklinville, Ashford Hollow, Delevan, West Valley, Lime
Lake-Machias and Sandusky.

If outdoors, consider seeking shelter inside a building.

LAT...LON 4235 7872 4247 7870 4248 7868 4252 7837
      4229 7839
TIME...MOT...LOC 1752Z 276DEG 8KT 4243 7862 
$$

Hitchcock

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 4, 4:12 AM EDT	Dense Fog Advisory	BUF	Erie, Niagara	4 hr
Jun 4, 7:25 PM EDT	Small Craft Advisory	BUF		27 hr

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.