Alert archive / New York / Special Weather Statements in 2011

Special Weather Statement, NWS Buffalo, NY

August 18, 2011Oswego County, New York

NWS Buffalo, NY issued this special weather statement at Aug 18, 2011, 4:12 PM EDT for Oswego County, New York. It was in force for 63 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, 2011, 4:12 PM EDT (20:12 UTC)
Expired
Aug 18, 2011, 5:15 PM EDT
In force
63 min
Issued by
NWS Buffalo, NY

County Oswego County, NY

The radar

The Ft Drum radar (KTYX), 77 km from the middle of the area, began a volume at 20:11 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, 8.2 hours before the alert went out and 185 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 2011-08-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 20 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 2011-08-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 92 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
20 J/kg
Mixed-layer CIN
-63 J/kg
Mixed-layer LCL
1362 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
92 m²/s²
0-3 km storm-relative helicity
106 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

420 
WWUS81 KBUF 182012
SPSBUF

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
412 PM EDT THU AUG 18 2011

NYZ004>006-182115-
CAYUGA NY-OSWEGO NY-WAYNE NY-
412 PM EDT THU AUG 18 2011

...STRONG THUNDERSTORM MOVING INTO THE FAIR HAVEN AND OSWEGO AREAS...

* AT 407 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  STRONG THUNDERSTORM CAPABLE OF PRODUCING SMALL HAIL...AND VERY
  HEAVY RAIN.  THIS STORM WAS LOCATED 16 MILES SOUTHWEST OF OSWEGO...
  AND MOVING EAST AT 25 MPH.

* SOME LOCATIONS AFFECTED BY THE STRONG THUNDERSTORM MAY INCLUDE...
  FAIR HAVEN...
  HANNIBAL...
  OSWEGO...

FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE
INDOORS IMMEDIATELY!

LAT...LON 4328 7672 4335 7673 4336 7669 4343 7663
      4346 7656 4348 7649 4353 7642 4354 7637
      4352 7635 4352 7629 4335 7626

$$

HITCHCOCK

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 18, 1:20 PM EDTSpecial Weather StatementBUFOrleans55 min
Aug 18, 1:35 PM EDTAreal Flood AdvisoryBUFMonroe, Niagara, Orleans3 hr
Aug 18, 2:45 PM EDTSpecial Weather StatementBUFOrleans60 min
Aug 18, 3:29 PM EDTSpecial Weather StatementBUFWayne61 min
Aug 18, 3:43 PM EDTSpecial Weather StatementBUFNiagara62 min
Aug 18, 3:46 PM EDTSevere Thunderstorm WarningBUFNiagara, Orleans44 min
Aug 18, 6:08 PM EDTSpecial Marine WarningBUF59 min

Nearby

Special Weather Statements in New York, 2011Every special weather statement in 2011

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.