Alert archive / New York / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 35, NWS Buffalo, NY

May 30, 2017Cayuga County, Ontario County, Wayne County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at May 30, 2017, 1:41 PM EDT for Cayuga County, Ontario County, Wayne County, New York. It was in force for 49 min. 3 reports 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: May 30, 2017, 1:41 PM EDT (17:41 UTC)
Expired: May 30, 2017, 2:30 PM EDT
In force: 49 min
Issued by: NWS Buffalo, NY
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Cayuga County, NY, Ontario County, NY, Wayne County, NY

The radar

The Binghamton radar (KBGM), 115 km from the middle of the area, began a volume at 17:44 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.

What was reported inside it

Time	Report	Where	Remark
May 30, 2:05 PM EDT	HAIL 1	Phelps, NY
May 30, 2:08 PM EDT	HAIL 0.75	1 Ene Huron, NY
May 30, 2:08 PM EDT	HAIL 0.75	Phelps, NY	TIME ESTIAMTED FROM RADAR

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

The watch it was issued in

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

Issued	Product	Office	Lasted
May 30, 12:39 PM EDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 5.7 hours before the alert went out and 135 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1274 m above ground
0-6 km bulk shear: 46 kt
0-1 km storm-relative helicity: 50 m²/s²
0-3 km storm-relative helicity: 104 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

990 
WUUS51 KBUF 301741
SVRBUF
NYC011-069-117-301830-
/O.NEW.KBUF.SV.W.0035.170530T1741Z-170530T1830Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Buffalo NY
141 PM EDT TUE MAY 30 2017

The National Weather Service in Buffalo has issued a

* Severe Thunderstorm Warning for...
  Southeastern Wayne County in western New York...
  Cayuga County in central New York...
  Northeastern Ontario County in western New York...

* Until 230 PM EDT.

* At 141 PM EDT, a severe thunderstorm was located over Rushville, or
  10 miles northwest of Penn Yan, moving northeast at 45 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...
  Geneva, Newark, Lyons, Clifton Springs, Clyde, Phelps, Montezuma
  and Rushville.

This includes Interstate 90 near exit 42.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4273 7739 4325 7685 4307 7657 4302 7663
      4301 7696 4277 7698 4276 7699 4276 7730
      4271 7735
TIME...MOT...LOC 1741Z 221DEG 39KT 4273 7724 

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

Wood

1 follow-up statement

213 
WWUS51 KBUF 301808
SVSBUF

Severe Weather Statement
National Weather Service Buffalo NY
208 PM EDT TUE MAY 30 2017

NYC011-069-117-301830-
/O.CON.KBUF.SV.W.0035.000000T0000Z-170530T1830Z/
Wayne NY-Cayuga NY-Ontario NY-
208 PM EDT TUE MAY 30 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 230 PM EDT
FOR SOUTHEASTERN WAYNE...CAYUGA AND NORTHEASTERN ONTARIO COUNTIES...

At 208 PM EDT, a severe thunderstorm was located over Phelps, or 8
miles north of Geneva, moving northeast at 50 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...
Geneva, Newark, Lyons, Clifton Springs, Clyde, Phelps, Montezuma and
Rose.

This includes Interstate 90 near exit 42.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4293 7718 4325 7685 4307 7657 4302 7663
      4301 7696 4286 7697
TIME...MOT...LOC 1808Z 220DEG 44KT 4299 7703 

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

HITCHCOCK

The office that day

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

Issued	Product	Office	Counties	Lasted
May 30, 1:14 AM EDT	Special Marine Warning	BUF		61 min
May 30, 1:52 AM EDT	Special Marine Warning	BUF		83 min
May 30, 1:05 PM EDT	Special Weather Statement	BUF	Allegany	25 min
May 30, 1:17 PM EDT	Special Weather Statement	BUF	Wayne	28 min
May 30, 1:18 PM EDT	Special Weather Statement	BUF	Ontario	27 min
May 30, 1:22 PM EDT	Special Weather Statement	BUF	Ontario	23 min
May 30, 1:32 PM EDT	Special Marine Warning	BUF		43 min
May 30, 1:34 PM EDT	Severe Thunderstorm Warning	BUF	Allegany, Cattaraugus, Erie, Livingston, Wyoming	30 min
May 30, 1:54 PM EDT	Special Weather Statement	BUF	Jefferson	36 min
May 30, 2:03 PM EDT	Severe Thunderstorm Warning	BUF	Allegany, Livingston	27 min
May 30, 2:10 PM EDT	Special Marine Warning	BUF		65 min
May 30, 2:10 PM EDT	Severe Thunderstorm Warning	BUF	Cayuga, Oswego, Wayne	50 min
May 30, 2:21 PM EDT	Severe Thunderstorm Warning	BUF	Cayuga, Ontario, Wayne	54 min
May 30, 3:13 PM EDT	Special Weather Statement	BUF	Ontario	32 min
May 30, 4:23 PM EDT	Special Weather Statement	BUF	Onondaga	22 min
May 30, 4:41 PM EDT	Special Weather Statement	BUF	Lewis	49 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.