Alert archive / New York / Special Weather Statements in 2011

Special Weather Statement, NWS Buffalo, NY

September 13, 2011Lewis County, New York

NWS Buffalo, NY issued this special weather statement at Sep 13, 2011, 8:55 PM EDT for Lewis County, New York. It was in force for 80 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: Sep 13, 2011, 8:55 PM EDT (00:55 UTC)
Expired: Sep 13, 2011, 10:15 PM EDT
In force: 80 min
Issued by: NWS Buffalo, NY

County Lewis County, NY

The radar

The Ft Drum radar (KTYX), 21 km from the middle of the area, began a volume at 00:55 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 00:00Z, 0.9 hours before the alert went out and 267 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: 52 J/kg
Mixed-layer CIN: -84 J/kg
Mixed-layer LCL: 595 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 116 m²/s²
0-3 km storm-relative helicity: 247 m²/s²
Significant tornado parameter: -0.0
Supercell composite: -0.1

Open this sounding in Storm Lab

The text

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

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What forecasters said that day

The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Buffalo, NY wrote its last area forecast discussion before this special weather statement went out at Sep 13, 8:21 PM EDT, 34 minutes earlier.

Area forecast discussion, Sep 13, 8:21 PM EDT, 34 minutes before

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In the hours before

Special weather statement, Sep 13, 8:05 PM EDT, 50 minutes before

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Local storm report, Sep 13, 8:34 PM EDT, 21 minutes before

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Special weather statement, Sep 13, 8:55 PM EDT, 0 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 13, 8:05 PM EDT	Special Weather Statement	BUF	Allegany	25 min
Sep 14, 3:38 PM EDT	Small Craft Advisory	BUF		40 hr

Nearby

Special Weather Statements in New York, 2011 Every 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.