Alert archive / New York / Special Weather Statements in 2021

Special Weather Statement, NWS Buffalo, NY

June 13, 2021Livingston County, New York

NWS Buffalo, NY issued this special weather statement at Jun 13, 2021, 8:43 PM EDT for Livingston County, New York. It was in force for 32 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: Jun 13, 2021, 8:43 PM EDT (00:43 UTC)
Expired: Jun 13, 2021, 9:15 PM EDT
In force: 32 min
Issued by: NWS Buffalo, NY

County Livingston County, NY

The radar

The Buffalo radar (KBUF), 101 km from the middle of the area, began a volume at 00:44 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, 0.7 hours before the alert went out and 97 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: 746 J/kg
Mixed-layer CIN: -81 J/kg
Mixed-layer LCL: 1307 m above ground
0-6 km bulk shear: 24 kt
0-1 km storm-relative helicity: 15 m²/s²
0-3 km storm-relative helicity: -8 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

As transmitted.

875 
WWUS81 KBUF 140043
SPSBUF

Special Weather Statement
National Weather Service Buffalo NY
843 PM EDT Sun Jun 13 2021

NYZ013-014-140115-
Ontario-Livingston-
843 PM EDT Sun Jun 13 2021

...A STRONG THUNDERSTORM WILL AFFECT EAST CENTRAL LIVINGSTON AND
SOUTHWESTERN ONTARIO COUNTIES...

At 842 PM EDT, a strong thunderstorm was located near Conesus, or 12
miles northeast of Dansville, moving east at 20 mph.

Winds in excess of 40 mph and half inch hail are possible with this
storm.

Locations impacted include...
Conesus, Bristol, Naples, Honeoye, Hemlock, Springwater, Canadice,
Bristol Mountain and Hunt Hollow.

If outdoors, consider seeking shelter inside a building.

LAT...LON 4262 7774 4278 7773 4286 7738 4264 7736
      4258 7737
TIME...MOT...LOC 0042Z 264DEG 19KT 4272 7759 
$$

Hitchcock

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 13, 8:45 PM EDT	Special Weather Statement	BUF	Allegany	30 min
Jun 13, 9:19 PM EDT	Special Marine Warning	BUF		73 min
Jun 13, 9:31 PM EDT	Special Weather Statement	BUF	Allegany	29 min
Jun 13, 9:54 PM EDT	Special Weather Statement	BUF	Wayne	36 min
Jun 13, 10:23 PM EDT	Special Weather Statement	BUF	Wayne	37 min
Jun 13, 11:01 PM EDT	Special Weather Statement	BUF	Ontario, Wayne	44 min
Jun 13, 11:45 PM EDT	Special Weather Statement	BUF	Jefferson, Oswego	30 min
Jun 14, 12:04 AM EDT	Severe Thunderstorm Warning	BUF	Jefferson, Lewis	56 min
Jun 14, 12:42 AM EDT	Special Weather Statement	BUF	Lewis	33 min
Jun 14, 1:17 AM EDT	Special Weather Statement	BUF	Lewis	43 min
Jun 14, 5:08 PM EDT	Special Weather Statement	BUF	Niagara	37 min
Jun 14, 5:36 PM EDT	Special Weather Statement	BUF	Genesee, Niagara	24 min
Jun 14, 6:04 PM EDT	Special Weather Statement	BUF	Genesee	41 min

Nearby

Special Weather Statements in New York, 2021 Every special weather statement in 2021

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.