Alert archive / New York / Special Weather Statements in 2023

Special Weather Statement, NWS Buffalo, NY

July 25, 2023Chautauqua County, New York

NWS Buffalo, NY issued this special weather statement at Jul 25, 2023, 2:23 PM EDT for Chautauqua County, New York. It was in force for 37 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 25, 2023, 2:23 PM EDT (18:23 UTC)
Expired: Jul 25, 2023, 3:00 PM EDT
In force: 37 min
Issued by: NWS Buffalo, NY
Hail: 0.50 in
Wind: 40

County Chautauqua County, NY

The radar

The Buffalo radar (KBUF), 87 km from the middle of the area, began a volume at 18:28 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 12:00Z, 6.4 hours before the alert went out and 87 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: 402 J/kg
Mixed-layer CIN: -62 J/kg
Mixed-layer LCL: 978 m above ground
0-6 km bulk shear: 15 kt
0-1 km storm-relative helicity: 41 m²/s²
0-3 km storm-relative helicity: 57 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 25, 2:22 PM EDT, 1 minute earlier.

Area forecast discussion, Jul 25, 2:22 PM EDT, 1 minute before

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Hazardous weather outlook, Jul 25, 5:22 AM EDT, 9 hours 1 minute before

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In the hours before

Special weather statement, Jul 25, 2:23 PM EDT, 0 minutes before

Special Weather Statement
National Weather Service Buffalo NY
223 PM EDT Tue Jul 25 2023

NYZ019-251900-
Chautauqua NY-
223 PM EDT Tue Jul 25 2023

...A STRONG THUNDERSTORM WILL IMPACT EAST CENTRAL CHAUTAUQUA COUNTY
THROUGH 300 PM EDT...

At 222 PM EDT, Doppler radar was tracking a strong thunderstorm 7
miles south of Fredonia, moving east at 5 mph.

HAZARD...Wind gusts up to 40 mph and half inch hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Locations impacted include...
Stockton, Cassadaga, Sinclairville, and Hamlet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 4224 7943 4238 7936 4238 7910 4218 7913
TIME...MOT...LOC 1822Z 275DEG 5KT 4233 7933

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...40 MPH

Mitchell

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 25, 2:57 PM EDT	Special Weather Statement	BUF	Cattaraugus, Livingston, Wyoming	33 min
Jul 25, 3:33 PM EDT	Special Weather Statement	BUF	Cattaraugus, Chautauqua, Livingston, Wyoming	42 min
Jul 25, 3:42 PM EDT	Severe Thunderstorm Warning	BUF	Wyoming	33 min
Jul 25, 4:01 PM EDT	Special Weather Statement	BUF	Monroe	29 min
Jul 25, 4:10 PM EDT	Severe Thunderstorm Warning	BUF	Monroe	35 min
Jul 25, 4:14 PM EDT	Special Weather Statement	BUF	Livingston	31 min
Jul 25, 4:18 PM EDT	Severe Thunderstorm Warning	BUF	Allegany, Livingston	42 min
Jul 25, 4:33 PM EDT	Special Weather Statement	BUF	Wyoming	27 min
Jul 25, 4:44 PM EDT	Flash Flood Warning	BUF	Monroe	3 hr
Jul 25, 5:01 PM EDT	Special Weather Statement	BUF	Allegany	44 min
Jul 25, 5:22 PM EDT	Special Weather Statement	BUF	Cattaraugus	23 min
Jul 25, 5:27 PM EDT	Special Weather Statement	BUF	Monroe	33 min
Jul 25, 5:56 PM EDT	Special Weather Statement	BUF	Allegany	64 min

Nearby

Special Weather Statements in New York, 2023 Every special weather statement in 2023

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.