Alert archive / New York / Special Weather Statements in 2019

Special Weather Statement, NWS Buffalo, NY

August 6, 2019Allegany County, New York

NWS Buffalo, NY issued this special weather statement at Aug 6, 2019, 4:18 PM EDT for Allegany County, New York. It was in force for 42 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
Aug 6, 2019, 4:18 PM EDT (20:18 UTC)
Expired
Aug 6, 2019, 5:00 PM EDT
In force
42 min
Issued by
NWS Buffalo, NY

County Allegany County, NY

The radar

The Buffalo radar (KBUF), 75 km from the middle of the area, began a volume at 20:20 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, 8.3 hours before the alert went out and 71 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-pSkew-T log-p diagram, Buffalo Intl Airport, NY at 12:00Z on 2019-08-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Buffalo Intl Airport, NY at 12:00Z on 2019-08-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 109 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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
2 J/kg
Mixed-layer CIN
-166 J/kg
Mixed-layer LCL
1449 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
109 m²/s²
0-3 km storm-relative helicity
142 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

715 
WWUS81 KBUF 062018
SPSBUF

Special Weather Statement
National Weather Service Buffalo NY
418 PM EDT Tue Aug 6 2019

NYZ012-013-020-021-062100-
Cattaraugus-Allegany-Livingston-Wyoming-
418 PM EDT Tue Aug 6 2019

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

At 417 PM EDT, a strong thunderstorm was located near Rushford, or 23
miles southwest of Letchworth State Park, moving east at 20 mph.

Wind gusts up to 50 mph and pea size hail are possible with this
storm.

Locations impacted include...
Letchworth State Park, Belfast, Rushford, Houghton, Portageville,
Caneadea, Pike, Castile, Belmont, Angelica, Lyndon, Short Tract,
Fillmore, Hunt, Rossburg, Black Creek, Farmersville Station, Hardy
Corners and Sandusky.

This includes Interstate 86 between exits 30 and 31.
 
Torrential rainfall is also occurring with this storm, and may cause
localized flooding. Do not drive your vehicle through flooded
roadways.

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 4227 7844 4249 7844 4265 7799 4222 7793
TIME...MOT...LOC 2017Z 264DEG 17KT 4242 7832 
$$

HSK

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 6, 12:09 PM EDTSpecial Marine WarningBUF66 min
Aug 6, 12:18 PM EDTSpecial Weather StatementBUFOrleans42 min
Aug 6, 12:37 PM EDTSpecial Marine WarningBUF53 min
Aug 6, 1:09 PM EDTSpecial Marine WarningBUF36 min
Aug 6, 1:21 PM EDTSpecial Weather StatementBUFNiagara54 min
Aug 6, 1:22 PM EDTSpecial Marine WarningBUF83 min
Aug 6, 1:31 PM EDTSpecial Weather StatementBUFWayne44 min
Aug 6, 1:53 PM EDTSpecial Marine WarningBUF37 min
Aug 6, 1:59 PM EDTSpecial Weather StatementBUFCayuga61 min
Aug 6, 2:01 PM EDTSpecial Marine WarningBUF89 min
Aug 6, 2:24 PM EDTSpecial Weather StatementBUFOntario36 min
Aug 6, 3:03 PM EDTSpecial Weather StatementBUFOntario27 min
Aug 6, 3:10 PM EDTSpecial Weather StatementBUFJefferson35 min
Aug 6, 3:34 PM EDTSevere Thunderstorm WarningBUFJefferson, Lewis, Oswego41 min
Aug 6, 3:50 PM EDTSpecial Marine WarningBUF85 min
Aug 6, 3:52 PM EDTSpecial Weather StatementBUFWyoming38 min
Aug 6, 4:00 PM EDTSpecial Marine WarningBUF90 min
Aug 6, 4:08 PM EDTSpecial Weather StatementBUFChautauqua37 min
Aug 6, 4:33 PM EDTSpecial Marine WarningBUF57 min
Aug 6, 4:43 PM EDTSpecial Weather StatementBUFChautauqua32 min
Aug 6, 5:01 PM EDTSpecial Weather StatementBUFErie59 min
Aug 6, 5:17 PM EDTSpecial Marine WarningBUF58 min
Aug 6, 5:24 PM EDTSpecial Weather StatementBUFErie36 min
Aug 6, 5:28 PM EDTSpecial Marine WarningBUF62 min
Aug 6, 5:36 PM EDTSpecial Weather StatementBUFErie, Wyoming39 min
Aug 6, 5:44 PM EDTSpecial Weather StatementBUFNiagara61 min
Aug 6, 5:57 PM EDTSevere Thunderstorm WarningBUFErie, Niagara63 min
Aug 6, 6:10 PM EDTSpecial Marine WarningBUF95 min
Aug 6, 6:22 PM EDTSpecial Marine WarningBUF83 min
Aug 6, 6:53 PM EDTSpecial Weather StatementBUFNiagara67 min

Nearby

Special Weather Statements in New York, 2019Every special weather statement in 2019

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.