Alert archive / New York / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 66, NWS Buffalo, NY

June 26, 2017Monroe County, Wayne County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at Jun 26, 2017, 5:36 PM EDT for Monroe County, Wayne County, New York. It was in force for 25 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Jun 26, 2017, 5:36 PM EDT (21:36 UTC)
Expired: Jun 26, 2017, 6:01 PM EDT
In force: 25 min
Issued by: NWS Buffalo, NY
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Monroe County, NY, Wayne County, NY

The radar

The Buffalo radar (KBUF), 115 km from the middle of the area, began a volume at 21:38 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.

What was reported inside it

Time	Report	Where	Remark
Jun 26, 5:48 PM EDT	HAIL 0.5	Penfield, NY

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 9.6 hours before the alert went out and 113 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.

390 
WUUS51 KBUF 262136
SVRBUF
NYC055-117-262230-
/O.NEW.KBUF.SV.W.0066.170626T2136Z-170626T2230Z/

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

The National Weather Service in Buffalo has issued a

* Severe Thunderstorm Warning for...
  Western Wayne County in western New York...
  Southeastern Monroe County in western New York...

* Until 630 PM EDT.

* At 535 PM EDT, a severe thunderstorm was located over Henrietta, or
  near Brighton, 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...
  East Rochester, Fairport, Brighton, Ontario, Henrietta, Penfield,
  Newark and Williamson.

This includes the following highways...
 Interstate 390 between exits 11 and 12.
 Interstate 90 near exit 46.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4299 7770 4305 7773 4333 7715 4331 7697
      4333 7692 4309 7689 4303 7735 4304 7748
      4302 7749
TIME...MOT...LOC 2135Z 246DEG 35KT 4304 7762 

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

Zaff

1 follow-up statement

366 
WWUS51 KBUF 262201
SVSBUF

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

NYC055-117-262210-
/O.CAN.KBUF.SV.W.0066.000000T0000Z-170626T2230Z/
Wayne NY-Monroe NY-
601 PM EDT MON JUN 26 2017

...THE SEVERE THUNDERSTORM WARNING FOR WESTERN WAYNE AND SOUTHEASTERN
MONROE COUNTIES 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.  However small hail is
still possible with this thunderstorm.

LAT...LON 4299 7770 4305 7773 4333 7715 4331 7697
      4333 7692 4309 7689 4303 7735 4304 7748
      4302 7749
TIME...MOT...LOC 2155Z 246DEG 35KT 4314 7730 

$$

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, 5:49 PM EDT	Special Marine Warning	BUF		86 min
Jun 26, 5:59 PM EDT	Severe Thunderstorm Warning	BUF	Livingston, Ontario	45 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.