Alert archive / New York / Special Weather Statements in 2021

Special Weather Statement, NWS Buffalo, NY

July 6, 2021Allegany County, New York

NWS Buffalo, NY issued this special weather statement at Jul 6, 2021, 8:26 PM EDT for Allegany County, New York. It was in force for 64 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: Jul 6, 2021, 8:26 PM EDT (00:26 UTC)
Expired: Jul 6, 2021, 9:30 PM EDT
In force: 64 min
Issued by: NWS Buffalo, NY

County Allegany County, NY

The radar

The Buffalo radar (KBUF), 59 km from the middle of the area, began a volume at 00:28 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 56 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: 873 J/kg
Mixed-layer CIN: -45 J/kg
Mixed-layer LCL: 1076 m above ground
0-6 km bulk shear: 18 kt
0-1 km storm-relative helicity: 115 m²/s²
0-3 km storm-relative helicity: 115 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.2

Open this sounding in Storm Lab

The text

As transmitted.

880 
WWUS81 KBUF 070026
SPSBUF

Special Weather Statement
National Weather Service Buffalo NY
826 PM EDT Tue Jul 6 2021

NYZ012-013-020-021-070130-
Cattaraugus-Allegany-Livingston-Wyoming-
826 PM EDT Tue Jul 6 2021

...A STRONG THUNDERSTORM WILL AFFECT SOUTHWESTERN WYOMING...
NORTHEASTERN CATTARAUGUS...SOUTHWESTERN LIVINGSTON AND NORTHWESTERN
ALLEGANY COUNTIES...

At 825 PM EDT, a strong thunderstorm was located near Arcade and 
moving southeast at 10 mph.

Winds in excess of 40 mph are possible with this storm.

Locations impacted include...
Letchworth State Park, Arcade, Belfast, Rushford, Houghton,
Portageville, Yorkshire, Caneadea, Eagle, Pike, Short Tract,
Fillmore, Bliss, Hunt, Rossburg, Farmersville Station and Sandusky.

If outdoors, consider seeking shelter inside a building.

Torrential rainfall is also occurring with this storm, and may cause
localized flooding. Do not drive your vehicle through flooded
roadways.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

LAT...LON 4253 7848 4254 7846 4256 7846 4268 7831
      4250 7786 4224 7817
TIME...MOT...LOC 0025Z 316DEG 11KT 4257 7834 
$$

Reynolds

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 6, 9:30 PM EDT	Special Weather Statement	BUF	Cayuga	30 min
Jul 7, 12:51 AM EDT	Special Weather Statement	BUF	Chautauqua	39 min
Jul 7, 3:34 AM EDT	Special Weather Statement	BUF	Chautauqua	26 min
Jul 7, 4:00 AM EDT	Special Weather Statement	BUF	Cattaraugus	90 min
Jul 7, 4:17 AM EDT	Special Weather Statement	BUF	Allegany	43 min
Jul 7, 4:38 AM EDT	Beach Hazards Statement	BUF	Monroe, Niagara, Orleans, Wayne	17 hr
Jul 7, 4:39 AM EDT	Small Craft Advisory	BUF		17 hr
Jul 7, 4:48 AM EDT	Special Marine Warning	BUF		42 min
Jul 7, 4:52 AM EDT	Special Weather Statement	BUF	Niagara	38 min
Jul 7, 5:27 AM EDT	Special Weather Statement	BUF	Orleans	48 min
Jul 7, 6:04 AM EDT	Special Weather Statement	BUF	Monroe	41 min
Jul 7, 6:49 AM EDT	Special Weather Statement	BUF	Ontario	41 min
Jul 7, 4:33 PM EDT	Special Weather Statement	BUF	Allegany	42 min
Jul 7, 5:15 PM EDT	Special Weather Statement	BUF	Livingston	30 min
Jul 7, 6:10 PM EDT	Special Weather Statement	BUF	Chautauqua	35 min
Jul 7, 6:47 PM EDT	Severe Thunderstorm Warning	BUF	Cattaraugus, Chautauqua	58 min
Jul 7, 6:49 PM EDT	Special Marine Warning	BUF		86 min
Jul 7, 6:52 PM EDT	Special Weather Statement	BUF	Allegany	38 min
Jul 7, 6:53 PM EDT	Special Weather Statement	BUF	Allegany	37 min
Jul 7, 7:03 PM EDT	Severe Thunderstorm Warning	BUF	Allegany	57 min
Jul 7, 7:12 PM EDT	Severe Thunderstorm Warning	BUF	Allegany	33 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.