Alert archive / New York / Special Weather Statements in 2018

Special Weather Statement, NWS Buffalo, NY

August 6, 2018Niagara County, New York

NWS Buffalo, NY issued this special weather statement at Aug 6, 2018, 3:21 PM EDT for Niagara County, New York. It was in force for 54 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, 2018, 3:21 PM EDT (19:21 UTC)
Expired
Aug 6, 2018, 4:15 PM EDT
In force
54 min
Issued by
NWS Buffalo, NY

County Niagara County, NY

The radar

The Buffalo radar (KBUF), 29 km from the middle of the area, began a volume at 19:22 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, 7.4 hours before the alert went out and 33 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 2018-08-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 570 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 2018-08-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 32 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
570 J/kg
Mixed-layer CIN
-74 J/kg
Mixed-layer LCL
1257 m above ground
0-6 km bulk shear
9 kt
0-1 km storm-relative helicity
32 m²/s²
0-3 km storm-relative helicity
43 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

713 
WWUS81 KBUF 061921
SPSBUF

Special Weather Statement
National Weather Service Buffalo NY
321 PM EDT MON AUG 6 2018

NYZ001-062015-
Niagara-
321 PM EDT MON AUG 6 2018

...A STRONG THUNDERSTORM WILL AFFECT NIAGARA COUNTY...

At 320 PM EDT, a strong thunderstorm was located near Fort Niagara
State Park, or 11 miles northwest of Niagara Falls, moving east at 30
mph.

Wind gusts up to 50 mph and half inch hail are possible with this
storm.

Locations impacted include...
Niagara Falls, North Tonawanda, Lockport, Newfane, Lewiston,
Youngstown, Fort Niagara State Park, Sanborn, Wilson and Cambria
Center.

LAT...LON 4330 7909 4340 7864 4309 7864 4308 7865
      4309 7873 4308 7874 4306 7900 4308 7908
      4311 7906 4312 7907 4315 7904 4317 7905
      4325 7906 4328 7908
TIME...MOT...LOC 1920Z 265DEG 27KT 4325 7917 

$$

Apffel

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 6, 2:01 PM EDTSpecial Weather StatementBUFLivingston, Wyoming44 min
Aug 6, 2:43 PM EDTSpecial Marine WarningBUF62 min
Aug 6, 2:46 PM EDTSpecial Weather StatementBUFWyoming44 min
Aug 6, 2:57 PM EDTSpecial Marine WarningBUF63 min
Aug 6, 3:06 PM EDTSpecial Weather StatementBUFOntario24 min
Aug 6, 3:12 PM EDTSpecial Marine WarningBUF63 min
Aug 6, 3:17 PM EDTSevere Thunderstorm WarningBUFMonroe, Wayne58 min
Aug 6, 3:34 PM EDTSpecial Marine WarningBUF41 min
Aug 6, 4:08 PM EDTSpecial Marine WarningBUF52 min
Aug 6, 4:19 PM EDTSpecial Weather StatementBUFOswego56 min
Aug 6, 4:43 PM EDTSevere Thunderstorm WarningBUFLewis, Oswego41 min

Nearby

Special Weather Statements in New York, 2018Every special weather statement in 2018

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.