Alert archive / New York / Special Weather Statements in 2015

Special Weather Statement, NWS Buffalo, NY

August 18, 2015Erie County, New York

NWS Buffalo, NY issued this special weather statement at Aug 18, 2015, 11:13 AM EDT for Erie County, New York. It was in force for 32 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 18, 2015, 11:13 AM EDT (15:13 UTC)
Expired
Aug 18, 2015, 11:45 AM EDT
In force
32 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 15:13 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

Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 3.2 hours before the alert went out and 12 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 2015-08-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 234 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 2015-08-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 13 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
234 J/kg
Mixed-layer CIN
-64 J/kg
Mixed-layer LCL
1139 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
13 m²/s²
0-3 km storm-relative helicity
29 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

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

281 
WWUS81 KBUF 181513
SPSBUF

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
1113 AM EDT TUE AUG 18 2015
 
NYZ010-085-181545-
NORTHERN ERIE-SOUTHERN ERIE-
1113 AM EDT TUE AUG 18 2015

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

AT 1112 AM EDT...A STRONG THUNDERSTORM WAS OVER EAST AURORA...MOVING
NORTHWEST AT 20 MPH.

WIND GUSTS UP TO 50 MPH AND PEA SIZE HAIL ARE POSSIBLE WITH THIS
STORM.

LOCATIONS IMPACTED INCLUDE...
BUFFALO...CHEEKTOWAGA...WEST SENECA...CLARENCE...LACKAWANNA...
DEPEW...AMHERST...LANCASTER...EAST AURORA AND WILLIAMSVILLE.

THIS INCLUDES INTERSTATE 90 BETWEEN EXITS 56 AND 49.
 
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.

THIS STORM MAY INTENSIFY...SO BE CERTAIN TO MONITOR LOCAL RADIO AND
TV STATIONS...AS WELL AS LOCAL CABLE TV OUTLETS...FOR ADDITIONAL
INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE.

LAT...LON 4293 7890 4303 7860 4273 7848 4266 7872
      4283 7886 4284 7886 4286 7887 4286 7888
      4288 7888 4288 7889 4290 7890
TIME...MOT...LOC 1512Z 156DEG 17KT 4277 7865 
$$

MITCHELL

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 18, 10:42 AM EDTFlash Flood WatchBUFAllegany, Cayuga, Livingston, Monroe, Ontario, Wayne9 hr
Aug 18, 2:46 PM EDTSpecial Weather StatementBUFOswego59 min
Aug 18, 2:57 PM EDTSevere Thunderstorm WarningBUFOswego42 min
Aug 18, 3:38 PM EDTSpecial Weather StatementBUFOntario, Wayne3 hr
Aug 18, 3:53 PM EDTFlash Flood WarningBUFOntario3 hr
Aug 18, 4:24 PM EDTSpecial Weather StatementBUFOswego66 min
Aug 18, 4:37 PM EDTSevere Thunderstorm WarningBUFOswego53 min
Aug 18, 4:44 PM EDTSpecial Weather StatementBUFWayne61 min
Aug 18, 5:01 PM EDTSpecial Marine WarningBUF59 min
Aug 18, 5:45 PM EDTSevere Thunderstorm WarningBUFLewis45 min
Aug 18, 7:16 PM EDTSpecial Weather StatementBUFJefferson29 min

Nearby

Special Weather Statements in New York, 2015Every 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.