Alert archive / New York / Special Weather Statements in 2021

Special Weather Statement, NWS Buffalo, NY

June 29, 2021Erie County, New York

NWS Buffalo, NY issued this special weather statement at Jun 29, 2021, 2:05 PM EDT for Erie County, New York. It was in force for 40 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 29, 2021, 2:05 PM EDT (18:05 UTC)
Expired: Jun 29, 2021, 2:45 PM EDT
In force: 40 min
Issued by: NWS Buffalo, NY

County Erie County, NY

The radar

The Buffalo radar (KBUF), 47 km from the middle of the area, began a volume at 18:09 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, 6.1 hours before the alert went out and 45 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: 627 J/kg
Mixed-layer CIN: -58 J/kg
Mixed-layer LCL: 1039 m above ground
0-6 km bulk shear: 24 kt
0-1 km storm-relative helicity: 101 m²/s²
0-3 km storm-relative helicity: 122 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.1

Open this sounding in Storm Lab

The text

As transmitted.

084 
WWUS81 KBUF 291805
SPSBUF

Special Weather Statement
National Weather Service Buffalo NY
205 PM EDT Tue Jun 29 2021

NYZ085-291845-
Southern Erie-
205 PM EDT Tue Jun 29 2021

...A STRONG THUNDERSTORM WILL AFFECT SOUTHEASTERN ERIE COUNTY...

At 205 PM EDT, a strong thunderstorm was located near Gowanda, or 13
miles south of Hamburg, moving northeast at 20 mph.

Winds in excess of 40 mph and pea size hail are possible with this
storm.

Locations impacted include...
East Aurora, Boston, Springville, Colden, North Collins, East
Concord, Chaffee, North Boston, Billington Heights, Concord, Collins,
Yorkshire, Holland, Sardinia, Langford, West Falls and South Wales.

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 4245 7891 4256 7900 4278 7861 4278 7859
      4262 7846 4254 7846 4251 7857 4251 7860
      4249 7867 4247 7870 4249 7872 4247 7876
      4246 7877 4246 7880 4244 7884 4244 7888
TIME...MOT...LOC 1805Z 239DEG 16KT 4253 7886 
$$

Mitchell

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 29, 2:16 PM EDT	Special Weather Statement	BUF	Cayuga	29 min
Jun 29, 2:49 PM EDT	Severe Thunderstorm Warning	BUF	Cattaraugus, Erie, Wyoming	56 min
Jun 29, 3:13 PM EDT	Special Weather Statement	BUF	Livingston, Wyoming	47 min
Jun 29, 3:18 PM EDT	Severe Thunderstorm Warning	BUF	Livingston, Wyoming	45 min
Jun 29, 3:45 PM EDT	Special Marine Warning	BUF		60 min
Jun 29, 4:08 PM EDT	Special Weather Statement	BUF	Livingston	67 min
Jun 29, 4:39 PM EDT	Special Marine Warning	BUF		66 min
Jun 29, 4:54 PM EDT	Special Weather Statement	BUF	Erie	51 min
Jun 29, 5:47 PM EDT	Special Weather Statement	BUF	Wyoming	43 min
Jun 29, 6:01 PM EDT	Severe Thunderstorm Warning	BUF	Erie, Genesee, Wyoming	29 min
Jun 29, 7:26 PM EDT	Special Weather Statement	BUF	Allegany	34 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.