Alert archive / New York / Special Weather Statements in 2020

Special Weather Statement, NWS Buffalo, NY

July 9, 2020Cattaraugus County, New York

NWS Buffalo, NY issued this special weather statement at Jul 9, 2020, 5:12 PM EDT for Cattaraugus County, New York. It was in force for 33 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 9, 2020, 5:12 PM EDT (21:12 UTC)
Expired: Jul 9, 2020, 5:45 PM EDT
In force: 33 min
Issued by: NWS Buffalo, NY

County Cattaraugus County, NY

The radar

The Buffalo radar (KBUF), 59 km from the middle of the area, began a volume at 21:13 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

Pittsburgh, PA (KPIT), launched 12:00Z, 9.2 hours before the alert went out and 250 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: 277 J/kg
Mixed-layer CIN: -58 J/kg
Mixed-layer LCL: 1389 m above ground
0-6 km bulk shear: 13 kt
0-1 km storm-relative helicity: 4 m²/s²
0-3 km storm-relative helicity: 5 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Buffalo, NY wrote its last area forecast discussion before this special weather statement went out at Jul 9, 2:48 PM EDT, 2 hours 24 minutes earlier.

Area forecast discussion, Jul 9, 2:48 PM EDT, 2 hours 24 minutes before

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Hazardous weather outlook, Jul 9, 7:35 AM EDT, 9 hours 37 minutes before

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In the hours before

Special weather statement, Jul 9, 5:12 PM EDT, 0 minutes before

Special Weather Statement
National Weather Service Buffalo NY
512 PM EDT Thu Jul 9 2020

NYZ020-085-092145-
Cattaraugus-Southern Erie-
512 PM EDT Thu Jul 9 2020

...A STRONG THUNDERSTORM WILL AFFECT NORTHWESTERN CATTARAUGUS AND
SOUTH CENTRAL ERIE COUNTIES...

At 510 PM EDT, two strong thunderstorms were located in Northern
Cattaraugus County. One was located near Otto, the other near
Ashford Hollow moving northwest at 5 mph.

Wind gusts to 40 mph, small hail and heavy rain are possible with
this storm. A quick half inch or more of rain will fall in some
areas in as little as fifteen minutes.

Locations impacted include...
Springville, Gowanda, Ashford Hollow, New Albion, East Otto,
Cattaraugus, Otto, Cattaraugus County Landfill and West Valley.

Occasional 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.

LAT...LON 4237 7852 4229 7893 4250 7905 4256 7872
TIME...MOT...LOC 2110Z 152DEG 4KT 4239 7886

Welch

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 9, 5:56 PM EDT	Special Weather Statement	BUF	Erie	34 min
Jul 9, 6:45 PM EDT	Special Weather Statement	BUF	Erie	30 min
Jul 9, 7:00 PM EDT	Special Weather Statement	BUF	Chautauqua	45 min
Jul 9, 7:11 PM EDT	Special Weather Statement	BUF	Erie	49 min

Nearby

Special Weather Statements in New York, 2020 Every special weather statement in 2020

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.