Alert archive / New York / Special Weather Statements in 2017

Special Weather Statement, NWS Buffalo, NY

August 3, 2017Genesee County, New York

NWS Buffalo, NY issued this special weather statement at Aug 3, 2017, 5:11 PM EDT for Genesee County, New York. It was in force for 34 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 3, 2017, 5:11 PM EDT (21:11 UTC)
Expired
Aug 3, 2017, 5:45 PM EDT
In force
34 min
Issued by
NWS Buffalo, NY

County Genesee County, NY

The radar

The Buffalo radar (KBUF), 24 km from the middle of the area, began a volume at 21:15 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, 9.2 hours before the alert went out and 23 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 2017-08-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 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 2017-08-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 62 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1527 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
62 m²/s²
0-3 km storm-relative helicity
67 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

738 
WWUS81 KBUF 032111
SPSBUF

Special Weather Statement
National Weather Service Buffalo NY
511 PM EDT THU AUG 3 2017

NYZ001-002-010-011-032145-
Orleans-Genesee-Niagara-Northern Erie-
511 PM EDT THU AUG 3 2017

...A STRONG THUNDERSTORM WILL AFFECT NORTHEASTERN ERIE...SOUTHEASTERN
NIAGARA...SOUTHWESTERN ORLEANS AND NORTHWESTERN GENESEE COUNTIES...

At 511 PM EDT, a strong thunderstorm was located near Akron, or near 
Clarence, moving north at 15 mph. 

Winds in excess of 30 mph and half inch hail are possible with this 
storm. Torrential rainfall is also occurring with this storm, and 
may cause localized flooding. Do not drive your vehicle through 
flooded roadways.

Locations impacted include...
Medina, Akron, Middleport, Shelby, Gasport, Clarence Center,
Wolcottsville and Rapids.


LAT...LON 4299 7849 4301 7866 4327 7866 4320 7830
TIME...MOT...LOC 2111Z 194DEG 13KT 4304 7856 

$$

Church

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 3, 12:22 PM EDTSpecial Weather StatementBUFLewis38 min
Aug 3, 12:35 PM EDTSevere Thunderstorm WarningBUFLewis32 min
Aug 3, 1:56 PM EDTSpecial Weather StatementBUFLewis34 min
Aug 3, 2:42 PM EDTLakeshore Flood WarningBUFCayuga, Jefferson, Monroe, Niagara, Orleans, Oswego and 1 more61 hr
Aug 3, 3:32 PM EDTSpecial Weather StatementBUFOrleans28 min
Aug 3, 4:40 PM EDTSpecial Weather StatementBUFErie35 min
Aug 3, 5:08 PM EDTSpecial Weather StatementBUFLivingston37 min
Aug 3, 5:29 PM EDTSevere Thunderstorm WarningBUFErie, Genesee, Niagara, Orleans46 min
Aug 3, 5:52 PM EDTSpecial Weather StatementBUFMonroe53 min
Aug 3, 6:00 PM EDTSpecial Marine WarningBUF60 min

Nearby

Special Weather Statements in New York, 2017Every special weather statement in 2017

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.