Alert archive / New York / Special Weather Statements in 2013

Special Weather Statement, NWS Buffalo, NY

May 21, 2013Ontario County, New York

NWS Buffalo, NY issued this special weather statement at May 21, 2013, 4:47 PM EDT for Ontario County, New York. It was in force for 28 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: May 21, 2013, 4:47 PM EDT (20:47 UTC)
Expired: May 21, 2013, 5:15 PM EDT
In force: 28 min
Issued by: NWS Buffalo, NY

County Ontario County, NY

The radar

The Buffalo radar (KBUF), 110 km from the middle of the area, began a volume at 20:48 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, 8.8 hours before the alert went out and 107 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: 1788 J/kg
Mixed-layer CIN: -50 J/kg
Mixed-layer LCL: 804 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: 132 m²/s²
0-3 km storm-relative helicity: 173 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 3.9

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 May 21, 3:52 PM EDT, 55 minutes earlier.

Area forecast discussion, May 21, 3:52 PM EDT, 55 minutes before

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Hazardous weather outlook, May 21, 3:27 PM EDT, 1 hour 20 minutes before

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In the hours before

Local storm report, May 21, 3:24 PM EDT, 1 hour 23 minutes before

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Special weather statement, May 21, 3:57 PM EDT, 50 minutes before

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Local storm report, May 21, 4:05 PM EDT, 42 minutes before

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Local storm report, May 21, 4:06 PM EDT, 41 minutes before

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Local storm report, May 21, 4:16 PM EDT, 31 minutes before

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Special weather statement, May 21, 4:47 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
May 20, 10:53 PM EDT	Special Marine Warning	BUF		52 min
May 20, 11:02 PM EDT	Special Weather Statement	BUF	Niagara	43 min
May 21, 12:39 AM EDT	Special Marine Warning	BUF		51 min
May 21, 12:50 AM EDT	Special Marine Warning	BUF		55 min
May 21, 1:01 AM EDT	Special Weather Statement	BUF	Oswego	59 min
May 21, 1:27 AM EDT	Severe Thunderstorm Warning	BUF	Jefferson, Lewis	48 min
May 21, 1:40 AM EDT	Special Marine Warning	BUF		50 min
May 21, 1:49 AM EDT	Severe Thunderstorm Warning	BUF	Jefferson, Lewis	41 min
May 21, 1:59 AM EDT	Special Weather Statement	BUF	Lewis	61 min
May 21, 2:13 AM EDT	Severe Thunderstorm Warning	BUF	Lewis	32 min
May 21, 12:32 PM EDT	Severe Thunderstorm Warning	BUF	Ontario, Wayne	58 min
May 21, 12:34 PM EDT	Severe Thunderstorm Warning	BUF	Ontario	26 min
May 21, 3:02 PM EDT	Severe Thunderstorm Warning	BUF	Cayuga, Wayne	58 min
May 21, 3:36 PM EDT	Severe Thunderstorm Warning	BUF	Wayne	54 min
May 21, 3:57 PM EDT	Special Weather Statement	BUF	Wyoming	33 min
May 21, 3:58 PM EDT	Special Marine Warning	BUF		62 min
May 21, 3:58 PM EDT	Severe Thunderstorm Warning	BUF	Monroe	47 min
May 21, 4:11 PM EDT	Severe Thunderstorm Warning	BUF	Livingston, Wyoming	49 min
May 21, 4:58 PM EDT	Severe Thunderstorm Warning	BUF	Livingston, Ontario	47 min
May 21, 5:05 PM EDT	Special Marine Warning	BUF		85 min
May 21, 5:14 PM EDT	Special Marine Warning	BUF		61 min
May 21, 5:22 PM EDT	Special Marine Warning	BUF		83 min
May 21, 5:34 PM EDT	Severe Thunderstorm Warning	BUF	Jefferson	56 min
May 21, 5:45 PM EDT	Severe Thunderstorm Warning	BUF	Ontario	15 min
May 21, 5:48 PM EDT	Severe Thunderstorm Warning	BUF	Cayuga, Oswego	57 min
May 21, 7:14 PM EDT	Special Weather Statement	BUF	Lewis	31 min
May 21, 7:40 PM EDT	Special Marine Warning	BUF		35 min

Nearby

Special Weather Statements in New York, 2013 Every special weather statement in 2013

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.