Alert archive / New York / Special Weather Statements in 2021

Special Weather Statement, NWS Buffalo, NY

June 21, 2021Chautauqua County, New York

NWS Buffalo, NY issued this special weather statement at Jun 21, 2021, 4:12 AM EDT for Chautauqua County, New York. It was in force for 48 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 21, 2021, 4:12 AM EDT (08:12 UTC)
Expired: Jun 21, 2021, 5:00 AM EDT
In force: 48 min
Issued by: NWS Buffalo, NY

County Chautauqua County, NY

The radar

The Buffalo radar (KBUF), 98 km from the middle of the area, began a volume at 08:14 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, 8.2 hours before the alert went out and 97 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: 315 J/kg
Mixed-layer CIN: -30 J/kg
Mixed-layer LCL: 1222 m above ground
0-6 km bulk shear: 24 kt
0-1 km storm-relative helicity: 41 m²/s²
0-3 km storm-relative helicity: 79 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.1

Open this sounding in Storm Lab

The text

As transmitted.

641 
WWUS81 KBUF 210812
SPSBUF

Special Weather Statement
National Weather Service Buffalo NY
412 AM EDT Mon Jun 21 2021

NYZ019-020-210900-
Chautauqua-Cattaraugus-
412 AM EDT Mon Jun 21 2021

...A STRONG THUNDERSTORM WILL AFFECT SOUTHWESTERN CATTARAUGUS AND
SOUTHERN CHAUTAUQUA COUNTIES...

At 412 AM EDT, a strong thunderstorm was located near Corry, or 22
miles southeast of Erie, PA, moving northeast at 50 mph.

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

Locations impacted include...
Jamestown, Allegany State Park, Lakewood, Falconer, Clymer, Long
Point State Park, Jamestown West, Frewsburg, Busti, Gerry, Conewango,
Ellington, Leon, Randolph, Napoli, Celoron, East Randolph,
Sinclairville, Panama and Cherry Creek.

This includes Interstate 86 between exits 7 and 18.
 
LAT...LON 4237 7900 4200 7873 4200 7976 4204 7976
TIME...MOT...LOC 0812Z 242DEG 45KT 4196 7971 
$$

Mitchell

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 20, 9:04 PM EDT	Special Weather Statement	BUF	Livingston	26 min
Jun 20, 9:18 PM EDT	Severe Thunderstorm Warning	BUF	Genesee, Livingston, Monroe, Wyoming	42 min
Jun 20, 9:55 PM EDT	Severe Thunderstorm Warning	BUF	Livingston, Monroe, Ontario, Wayne	39 min
Jun 20, 11:23 PM EDT	Special Marine Warning	BUF		67 min
Jun 20, 11:23 PM EDT	Severe Thunderstorm Warning	BUF	Chautauqua	52 min
Jun 21, 12:07 AM EDT	Special Marine Warning	BUF		53 min
Jun 21, 12:17 AM EDT	Severe Thunderstorm Warning	BUF	Cattaraugus, Chautauqua, Erie	43 min
Jun 21, 12:30 AM EDT	Special Marine Warning	BUF		34 min
Jun 21, 1:47 AM EDT	Special Marine Warning	BUF		43 min
Jun 21, 2:14 AM EDT	Special Weather Statement	BUF	Erie	46 min
Jun 21, 2:30 AM EDT	Special Marine Warning	BUF		45 min
Jun 21, 2:54 AM EDT	Special Weather Statement	BUF	Erie, Genesee	51 min
Jun 21, 3:20 AM EDT	Special Marine Warning	BUF		55 min
Jun 21, 3:36 AM EDT	Special Weather Statement	BUF	Monroe, Orleans	39 min
Jun 21, 3:42 AM EDT	Special Weather Statement	BUF	Chautauqua	63 min
Jun 21, 3:50 AM EDT	Special Marine Warning	BUF		55 min
Jun 21, 4:19 AM EDT	Special Marine Warning	BUF		26 min
Jun 21, 4:28 AM EDT	Beach Hazards Statement	BUF	Cayuga, Chautauqua, Erie, Jefferson, Monroe, Niagara and 3 more	42 hr
Jun 21, 4:31 AM EDT	Special Weather Statement	BUF	Cattaraugus, Erie, Genesee, Wyoming	44 min
Jun 21, 4:48 AM EDT	Special Marine Warning	BUF		42 min
Jun 21, 5:15 AM EDT	Special Weather Statement	BUF	Allegany, Cattaraugus, Livingston, Wyoming	75 min
Jun 21, 5:48 AM EDT	Severe Thunderstorm Warning	BUF	Livingston, Ontario	42 min
Jun 21, 6:25 AM EDT	Severe Thunderstorm Warning	BUF	Cayuga, Ontario, Wayne	50 min
Jun 21, 6:33 AM EDT	Special Marine Warning	BUF		57 min
Jun 21, 6:55 AM EDT	Special Weather Statement	BUF	Oswego	50 min
Jun 21, 7:15 AM EDT	Special Marine Warning	BUF		30 min
Jun 21, 7:20 AM EDT	Special Weather Statement	BUF	Jefferson, Lewis, Oswego	55 min
Jun 21, 7:25 AM EDT	Severe Thunderstorm Warning	BUF	Jefferson, Lewis, Oswego	50 min
Jun 21, 1:31 PM EDT	Severe Thunderstorm Warning	BUF	Jefferson	43 min
Jun 21, 1:34 PM EDT	Special Marine Warning	BUF		56 min
Jun 21, 1:53 PM EDT	Severe Thunderstorm Warning	BUF	Lewis	67 min
Jun 21, 2:01 PM EDT	Special Marine Warning	BUF		44 min
Jun 21, 2:18 PM EDT	Severe Thunderstorm Warning	BUF	Erie	42 min
Jun 21, 2:18 PM EDT	Severe Thunderstorm Warning	BUF	Lewis	42 min
Jun 21, 2:44 PM EDT	Severe Thunderstorm Warning	BUF	Erie, Genesee, Wyoming	46 min
Jun 21, 3:07 PM EDT	Severe Thunderstorm Warning	BUF	Allegany, Cattaraugus	53 min
Jun 21, 3:18 PM EDT	Severe Thunderstorm Warning	BUF	Genesee, Livingston, Monroe, Ontario, Wyoming	57 min
Jun 21, 3:55 PM EDT	Severe Thunderstorm Warning	BUF	Livingston, Ontario	50 min
Jun 21, 3:58 PM EDT	Severe Thunderstorm Warning	BUF	Monroe, Ontario, Wayne	47 min
Jun 21, 4:25 PM EDT	Special Marine Warning	BUF		77 min
Jun 21, 4:35 PM EDT	Severe Thunderstorm Warning	BUF	Cayuga, Oswego, Wayne	55 min
Jun 21, 5:02 PM EDT	Severe Thunderstorm Warning	BUF	Jefferson, Lewis, Oswego	58 min
Jun 21, 5:26 PM EDT	Severe Thunderstorm Warning	BUF	Lewis	64 min
Jun 21, 6:21 PM EDT	Severe Thunderstorm Warning	BUF	Lewis	26 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.