Alert archive / New York / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 23, NWS Buffalo, NY

June 20, 2016Livingston County, Ontario County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at Jun 20, 2016, 11:43 PM EDT for Livingston County, Ontario County, New York. It was in force for 23 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 20, 2016, 11:43 PM EDT (03:43 UTC)
Expired: Jun 21, 2016, 12:06 AM EDT
In force: 23 min
Issued by: NWS Buffalo, NY
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Livingston County, NY, Ontario County, NY

The radar

The Buffalo radar (KBUF), 102 km from the middle of the area, began a volume at 03:44 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jun 20, 8:06 PM EDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 00:00Z, 3.7 hours before the alert went out and 98 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: 874 J/kg
Mixed-layer CIN: -43 J/kg
Mixed-layer LCL: 1626 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 187 m²/s²
0-3 km storm-relative helicity: 223 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 4.7

Open this sounding in Storm Lab

The text

As transmitted.

452 
WUUS51 KBUF 210343
SVRBUF
NYC051-069-210445-
/O.NEW.KBUF.SV.W.0023.160621T0343Z-160621T0445Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
1143 PM EDT MON JUN 20 2016

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHWESTERN ONTARIO COUNTY IN WESTERN NEW YORK...
  SOUTHEASTERN LIVINGSTON COUNTY IN WESTERN NEW YORK...

* UNTIL 1245 AM EDT

* AT 1143 PM EDT...A SEVERE THUNDERSTORM WAS LOCATED OVER CONESUS...OR
  9 MILES NORTH OF DANSVILLE...MOVING EAST AT 50 MPH.

  HAZARD...60 MPH WIND GUSTS AND QUARTER SIZE HAIL. 

  SOURCE...RADAR INDICATED. 

  IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE 
           TO ROOFS...SIDING...AND TREES. 

* LOCATIONS IMPACTED INCLUDE...
  CONESUS...NAPLES...GROVELAND...SPRINGWATER...CANADICE...HUNT HOLLOW AND
  BRISTOL MOUNTAIN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

LAT...LON 4265 7779 4274 7771 4275 7733 4267 7736
      4267 7737 4258 7737 4258 7766 4257 7766
TIME...MOT...LOC 0343Z 275DEG 42KT 4269 7767 

HAIL...1.00IN
WIND...60MPH
 
$$

APFFEL

1 follow-up statement

471 
WWUS51 KBUF 210406
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
1206 AM EDT TUE JUN 21 2016

NYC051-069-210412-
/O.CAN.KBUF.SV.W.0023.000000T0000Z-160621T0445Z/
ONTARIO NY-LIVINGSTON NY-
1206 AM EDT TUE JUN 21 2016

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN ONTARIO AND
SOUTHEASTERN LIVINGSTON COUNTIES IS CANCELLED...
    
THE SEVERE THUNDERSTORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF
THE WARNED AREA THEREFORE THE WARNING HAS BEEN CANCELLED.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 100 AM EDT FOR
WESTERN NEW YORK.

LAT...LON 4265 7779 4274 7771 4275 7733 4267 7736
      4267 7737 4258 7737 4258 7766 4257 7766
TIME...MOT...LOC 0402Z 275DEG 42KT 4267 7736 

$$

APFFEL

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 20, 8:57 PM EDT	Special Marine Warning	BUF		93 min
Jun 20, 9:04 PM EDT	Severe Thunderstorm Warning	BUF	Jefferson	56 min
Jun 20, 9:20 PM EDT	Special Marine Warning	BUF		55 min
Jun 20, 9:26 PM EDT	Special Weather Statement	BUF	Erie	34 min
Jun 20, 9:30 PM EDT	Severe Thunderstorm Warning	BUF	Erie, Genesee, Niagara, Wyoming	45 min
Jun 20, 9:43 PM EDT	Severe Thunderstorm Warning	BUF	Jefferson, Lewis	62 min
Jun 20, 9:53 PM EDT	Severe Thunderstorm Warning	BUF	Jefferson	37 min
Jun 20, 10:11 PM EDT	Severe Thunderstorm Warning	BUF	Erie, Genesee, Livingston, Wyoming	49 min
Jun 20, 10:26 PM EDT	Severe Thunderstorm Warning	BUF	Jefferson, Lewis	64 min
Jun 20, 10:33 PM EDT	Severe Thunderstorm Warning	BUF	Oswego	27 min
Jun 20, 10:36 PM EDT	Special Marine Warning	BUF		39 min
Jun 20, 10:39 PM EDT	Severe Thunderstorm Warning	BUF	Allegany, Cattaraugus, Livingston, Wyoming	51 min
Jun 20, 10:53 PM EDT	Severe Thunderstorm Warning	BUF	Oswego	52 min
Jun 20, 10:58 PM EDT	Severe Thunderstorm Warning	BUF	Allegany, Cattaraugus, Erie, Livingston, Wyoming	47 min
Jun 20, 11:13 PM EDT	Severe Thunderstorm Warning	BUF	Cayuga, Wayne	37 min
Jun 20, 11:20 PM EDT	Flash Flood Warning	BUF	Erie, Wyoming	3 hr
Jun 20, 11:34 PM EDT	Severe Thunderstorm Warning	BUF	Allegany, Cattaraugus, Livingston, Wyoming	41 min
Jun 21, 12:15 AM EDT	Severe Thunderstorm Warning	BUF	Allegany	30 min

Nearby

Severe Thunderstorm Warnings in New York, 2016 Every severe thunderstorm warning in 2016

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.