Alert archive / New York / Special Weather Statements in 2015

Special Weather Statement, NWS Buffalo, NY

August 4, 2015Erie County, New York

NWS Buffalo, NY issued this special weather statement at Aug 4, 2015, 5:52 PM EDT for Erie County, New York. It was in force for 23 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 4, 2015, 5:52 PM EDT (21:52 UTC)
Expired: Aug 4, 2015, 6:15 PM EDT
In force: 23 min
Issued by: NWS Buffalo, NY

County Erie County, NY

The radar

The Buffalo radar (KBUF), 12 km from the middle of the area, began a volume at 21:54 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, 9.9 hours before the alert went out and 15 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: 138 J/kg
Mixed-layer CIN: -20 J/kg
Mixed-layer LCL: 1007 m above ground
0-6 km bulk shear: 45 kt
0-1 km storm-relative helicity: 11 m²/s²
0-3 km storm-relative helicity: 79 m²/s²
Significant tornado parameter: -0.0
Supercell composite: -0.3

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

830 
WWUS81 KBUF 042152
SPSBUF

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
552 PM EDT TUE AUG 4 2015
 
NYZ001-010-042215-
NORTHERN ERIE-NIAGARA-
552 PM EDT TUE AUG 4 2015

...A STRONG THUNDERSTORM WILL AFFECT SOUTH CENTRAL NIAGARA AND
NORTHEASTERN ERIE COUNTIES...

AT 551 PM EDT...A STRONG THUNDERSTORM WAS OVER TONAWANDA AND MOVING
EAST AT 35 MPH.

WINDS IN EXCESS OF 40 MPH ARE POSSIBLE WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE...
BUFFALO...CHEEKTOWAGA...WEST SENECA...NORTH TONAWANDA...CLARENCE...
KENMORE...DEPEW...AMHERST...TONAWANDA AND LANCASTER.

THIS INCLUDES INTERSTATE 90 BETWEEN EXITS 53 AND 49.
 
TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY CAUSE
LOCALIZED FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.

FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM.
LIGHTNING CAN STRIKE 15 MILES AWAY FROM A THUNDERSTORM. SEEK A SAFE
SHELTER INSIDE A BUILDING OR VEHICLE.

LAT...LON 4304 7890 4302 7889 4305 7890 4306 7892
      4308 7891 4302 7851 4281 7860 4291 7890
      4295 7891 4298 7894 4296 7894 4296 7896
      4297 7896
TIME...MOT...LOC 2151Z 284DEG 32KT 4299 7887 
$$

REYNOLDS

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 4, 4:06 AM EDT	Small Craft Advisory	BUF		18 hr
Aug 4, 2:29 PM EDT	Special Weather Statement	BUF	Cayuga	46 min
Aug 4, 2:36 PM EDT	Severe Thunderstorm Warning	BUF	Cayuga, Wayne	39 min
Aug 4, 3:50 PM EDT	Small Craft Advisory	BUF		37 hr
Aug 4, 4:18 PM EDT	Special Marine Warning	BUF		42 min
Aug 4, 4:25 PM EDT	Special Weather Statement	BUF	Wayne	50 min
Aug 4, 5:06 PM EDT	Special Marine Warning	BUF		54 min
Aug 4, 6:40 PM EDT	Special Weather Statement	BUF	Genesee	50 min
Aug 4, 7:06 PM EDT	Special Marine Warning	BUF		54 min

Nearby

Special Weather Statements in New York, 2015 Every special weather statement in 2015

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.