Alert archive / New York / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 67, NWS Buffalo, NY

June 26, 2017Livingston County, Ontario County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at Jun 26, 2017, 5:59 PM EDT for Livingston County, Ontario County, New York. It was in force for 45 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 26, 2017, 5:59 PM EDT (21:59 UTC)
Expired: Jun 26, 2017, 6:44 PM EDT
In force: 45 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), 114 km from the middle of the area, began a volume at 22:02 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, 10.0 hours before the alert went out and 111 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: 68 J/kg
Mixed-layer CIN: -14 J/kg
Mixed-layer LCL: 988 m above ground
0-6 km bulk shear: 17 kt
0-1 km storm-relative helicity: 40 m²/s²
0-3 km storm-relative helicity: 49 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

985 
WUUS51 KBUF 262159
SVRBUF
NYC051-069-262300-
/O.NEW.KBUF.SV.W.0067.170626T2159Z-170626T2300Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Buffalo NY
559 PM EDT MON JUN 26 2017

The National Weather Service in Buffalo has issued a

* Severe Thunderstorm Warning for...
  Northeastern Livingston County in western New York...
  Ontario County in western New York...

* Until 700 PM EDT.

* At 558 PM EDT, a severe thunderstorm was located over Hemlock, or
  10 miles east of Geneseo, moving east at 25 mph.

  HAZARD...60 mph wind gusts and quarter size hail. 

  SOURCE...Radar indicated. 

  IMPACT...Minor damage to vehicles is possible. Expect wind damage 
           to trees and power lines. 

* Locations impacted include...
  Canandaigua, Bristol, Clifton Springs, Phelps, Bloomfield, Honeoye,
  Hemlock and Gorham.

This includes Interstate 90 near exit 43.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4263 7765 4288 7768 4301 7713 4301 7705
      4277 7697 4276 7731 4273 7734 4269 7736
TIME...MOT...LOC 2158Z 252DEG 21KT 4281 7761 

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

Zaff

2 follow-up statements

099 
WWUS51 KBUF 262230
SVSBUF

Severe Weather Statement
National Weather Service Buffalo NY
630 PM EDT MON JUN 26 2017

NYC051-262240-
/O.CAN.KBUF.SV.W.0067.000000T0000Z-170626T2300Z/
Livingston NY-
630 PM EDT MON JUN 26 2017

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN LIVINGSTON COUNTY
IS CANCELLED...
    
The severe thunderstorm which prompted the warning has 
weakened. Therefore, the warning has been cancelled.

LAT...LON 4275 7756 4286 7756 4286 7755 4287 7755
      4291 7756 4301 7713 4301 7705 4277 7697
TIME...MOT...LOC 2230Z 242DEG 33KT 4283 7734 

$$

NYC069-262300-
/O.CON.KBUF.SV.W.0067.000000T0000Z-170626T2300Z/
Ontario NY-
630 PM EDT MON JUN 26 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 700 PM EDT
FOR ONTARIO COUNTY...

At 630 PM EDT, a severe thunderstorm was located near Bristol, or
near Canandaigua, moving northeast at 40 mph.

HAZARD...60 mph wind gusts and quarter size hail. 

SOURCE...Radar indicated. 

IMPACT...Minor damage to vehicles is possible. Expect wind damage to 
         trees and power lines. 

Locations impacted include...
Canandaigua, Bristol, Clifton Springs, Phelps, Bloomfield, Rushville,
Honeoye and Gorham.

This includes Interstate 90 near exit 43.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4275 7756 4286 7756 4286 7755 4287 7755
      4291 7756 4301 7713 4301 7705 4277 7697
TIME...MOT...LOC 2230Z 242DEG 33KT 4283 7734 

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

Zaff

991 
WWUS51 KBUF 262244
SVSBUF

Severe Weather Statement
National Weather Service Buffalo NY
644 PM EDT MON JUN 26 2017

NYC069-262254-
/O.CAN.KBUF.SV.W.0067.000000T0000Z-170626T2300Z/
Ontario NY-
644 PM EDT MON JUN 26 2017

...THE SEVERE THUNDERSTORM WARNING FOR ONTARIO COUNTY IS CANCELLED...
                
The storm which prompted the warning has weakened below severe
limits, and no longer pose an immediate threat to life or property.
Therefore the warning has been cancelled.

LAT...LON 4275 7756 4286 7756 4286 7755 4287 7755
      4291 7756 4301 7713 4301 7705 4277 7697
TIME...MOT...LOC 2244Z 252DEG 21KT 4286 7723 

$$

Zaff

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 25, 10:03 PM EDT	Small Craft Advisory	BUF		6 hr
Jun 26, 4:17 AM EDT	Beach Hazards Statement	BUF	Chautauqua	18 hr
Jun 26, 8:13 AM EDT	Special Marine Warning	BUF		62 min
Jun 26, 10:45 AM EDT	Special Marine Warning	BUF		60 min
Jun 26, 10:57 AM EDT	Special Marine Warning	BUF		33 min
Jun 26, 2:16 PM EDT	Special Weather Statement	BUF	Wayne	29 min
Jun 26, 2:58 PM EDT	Special Marine Warning	BUF		92 min
Jun 26, 3:08 PM EDT	Special Weather Statement	BUF	Cayuga	52 min
Jun 26, 4:43 PM EDT	Special Weather Statement	BUF	Wyoming	47 min
Jun 26, 4:47 PM EDT	Severe Thunderstorm Warning	BUF	Genesee, Livingston, Monroe, Wyoming	58 min
Jun 26, 5:36 PM EDT	Severe Thunderstorm Warning	BUF	Monroe, Wayne	25 min
Jun 26, 5:49 PM EDT	Special Marine Warning	BUF		86 min
Jun 26, 6:34 PM EDT	Severe Thunderstorm Warning	BUF	Cayuga, Oswego, Wayne	56 min
Jun 26, 7:10 PM EDT	Special Marine Warning	BUF		65 min

Nearby

Severe Thunderstorm Warnings in New York, 2017 Every severe thunderstorm warning in 2017

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.