Alert archive / New York / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 25, NWS Buffalo, NY

May 18, 2017Oswego County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at May 18, 2017, 5:51 PM EDT for Oswego County, New York. It was in force for 39 min. 17 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 18, 2017, 5:51 PM EDT (21:51 UTC)
Expired: May 18, 2017, 6:30 PM EDT
In force: 39 min
Issued by: NWS Buffalo, NY
Area: Storm-based polygon
Hail: 1.25 in
Wind: 60.0 mph

County Oswego County, NY

The radar

The Ft Drum radar (KTYX), 62 km from the middle of the area, began a volume at 21:50 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 18, 5:54 PM EDT	HAIL 1.5	Fulton, NY
May 18, 5:55 PM EDT	HAIL 1.5	Fulton, NY
May 18, 5:59 PM EDT	TSTM WND DMG	Palermo, NY	TREES AND WIRES DOWN.
May 18, 5:59 PM EDT	HAIL 1.5	1 E Phoenix, NY
May 18, 5:59 PM EDT	HAIL 2.5	Volney, NY	TWITTER PICTURE OF APPROX TENNIS BALL HAIL. TIME ESTIMATED FROM RADAR
May 18, 6:00 PM EDT	HAIL 0.88	Palermo, NY
May 18, 6:00 PM EDT	HAIL 1.5	Fulton, NY
May 18, 6:00 PM EDT	HAIL 2	3 Wnw Palermo, NY	REPORTS OF MULTIPLE CAR WINDOWS SMASHED AND DAMAGE TO SIDING. TIME ESTIMATED FROM RADAR
May 18, 6:00 PM EDT	HAIL 2.5	1 Nw Palermo, NY
May 18, 6:05 PM EDT	HAIL 1.5	3 S Central Square, NY
May 18, 6:05 PM EDT	HAIL 1.75	2 N Palermo, NY	GOLF BALL SIZED HAIL
May 18, 6:06 PM EDT	HAIL 2.5	3 Ne Palermo, NY	HAIL REPORT FROM FACEBOOK... SIZE ESTIMATED
May 18, 6:09 PM EDT	TSTM WND DMG	West Monroe, NY	TREES AND WIRES DOWN.
May 18, 6:10 PM EDT	HAIL 0.5	Phoenix, NY
May 18, 6:13 PM EDT	TSTM WND DMG	Constantia, NY	TREES AND WIRES DOWN.
May 18, 6:16 PM EDT	HAIL 1.5	1 Ne Howardville, NY
May 18, 6:21 PM EDT	TSTM WND DMG	Cleveland, NY	TREES AND WIRES DOWN.

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 18, 3:36 PM EDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Albany, NY (KALY), launched 12:00Z, 9.9 hours before the alert went out and 197 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: 2076 m above ground
0-6 km bulk shear: 32 kt
0-1 km storm-relative helicity: 116 m²/s²
0-3 km storm-relative helicity: 112 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

758 
WUUS51 KBUF 182151
SVRBUF
NYC075-182230-
/O.NEW.KBUF.SV.W.0025.170518T2151Z-170518T2230Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Buffalo NY
551 PM EDT THU MAY 18 2017

The National Weather Service in Buffalo has issued a

* Severe Thunderstorm Warning for...
  Southern Oswego County in central New York...

* Until 630 PM EDT.

* At 551 PM EDT, a severe thunderstorm was located near Fulton,
  moving east at 50 mph.

  HAZARD...60 mph wind gusts and half dollar size hail. 

  SOURCE...Radar indicated. 

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

* Locations impacted include...
  Fulton, Central Square, Redfield, Battle Island State Park,
  Hastings, Volney, Constantia and West Monroe.

This includes Interstate 81 between exits 32 and 34.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4348 7581 4333 7589 4332 7586 4315 7588
      4320 7604 4320 7608 4323 7610 4327 7620
      4324 7621 4322 7619 4320 7621 4324 7626
      4324 7627 4323 7626 4320 7627 4323 7631
      4323 7648 4335 7653 4358 7577 4347 7576
TIME...MOT...LOC 2151Z 255DEG 44KT 4327 7639 

HAIL...1.25IN
WIND...60MPH
 
$$

Church

3 follow-up statements

903 
WWUS51 KBUF 182157
SVSBUF

Severe Weather Statement
National Weather Service Buffalo NY
557 PM EDT THU MAY 18 2017

NYC075-182230-
/O.CON.KBUF.SV.W.0025.000000T0000Z-170518T2230Z/
Oswego NY-
557 PM EDT THU MAY 18 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 PM EDT
FOR SOUTHERN OSWEGO COUNTY...

At 556 PM EDT, a severe thunderstorm was located near Fulton, moving
east at 50 mph.

HAZARD...Tennis ball size hail and 60 mph wind gusts. 

SOURCE...Radar indicated. 

IMPACT...People and animals outdoors will be injured. Expect hail 
         damage to roofs, siding, windows, and vehicles. Expect wind 
         damage to trees and power lines. 

Locations impacted include...
Fulton, Central Square, Redfield, Battle Island State Park, Hastings,
Volney, Constantia and West Monroe.

This includes Interstate 81 between exits 32 and 34.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4348 7581 4333 7589 4332 7586 4315 7588
      4320 7604 4320 7608 4323 7610 4327 7620
      4324 7621 4322 7619 4320 7621 4324 7626
      4324 7627 4323 7626 4320 7627 4323 7631
      4323 7648 4335 7653 4358 7577 4347 7576
TIME...MOT...LOC 2156Z 255DEG 44KT 4329 7629 

HAIL...2.50IN
WIND...60MPH
 
$$

Church

557 
WWUS51 KBUF 182218
SVSBUF

Severe Weather Statement
National Weather Service Buffalo NY
618 PM EDT THU MAY 18 2017

NYC075-182230-
/O.CON.KBUF.SV.W.0025.000000T0000Z-170518T2230Z/
Oswego NY-
618 PM EDT THU MAY 18 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 PM EDT
FOR SOUTHEASTERN OSWEGO COUNTY...

At 618 PM EDT, a severe thunderstorm was located 9 miles west of
Camden, moving east at 50 mph.

HAZARD...Golf ball size hail and 60 mph wind gusts. 

SOURCE...Trained weather spotters. 

IMPACT...People and animals outdoors will be injured. Expect hail 
         damage to roofs, siding, windows, and vehicles. Expect wind 
         damage to trees and power lines. 

Locations impacted include...
Central Square, Redfield, Hastings, Constantia, West Monroe,
Williamstown, Cleveland and Parish.

This includes Interstate 81 between exits 32 and 34.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4348 7581 4333 7589 4332 7586 4315 7588
      4320 7604 4320 7608 4323 7610 4345 7620
      4358 7577 4347 7576
TIME...MOT...LOC 2218Z 255DEG 44KT 4336 7593 

HAIL...1.75IN
WIND...60MPH
 
$$

Church

094 
WWUS51 KBUF 182228
SVSBUF

Severe Weather Statement
National Weather Service Buffalo NY
628 PM EDT THU MAY 18 2017

NYC075-182238-
/O.EXP.KBUF.SV.W.0025.000000T0000Z-170518T2230Z/
Oswego NY-
628 PM EDT THU MAY 18 2017

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN OSWEGO COUNTY
WILL EXPIRE AT 630 PM EDT...
        
The storm which prompted the warning has moved out of the area.
Therefore the warning will be allowed to expire.

Remember, a Severe Thunderstorm Warning still remains in effect for 
east central Oswego and southwest Lewis counties.

A severe thunderstorm watch remains in effect until 1100 PM EDT for
central New York.

LAT...LON 4348 7581 4333 7589 4332 7586 4315 7588
      4320 7604 4320 7608 4323 7610 4345 7620
      4358 7577 4347 7576
TIME...MOT...LOC 2228Z 255DEG 44KT 4339 7579 

$$

Church

The office that day

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

Issued	Product	Office	Counties	Lasted
May 18, 1:35 PM EDT	Special Weather Statement	BUF	Chautauqua	25 min
May 18, 1:38 PM EDT	Severe Thunderstorm Warning	BUF	Cattaraugus, Chautauqua, Erie	52 min
May 18, 2:36 PM EDT	Special Weather Statement	BUF	Wyoming	24 min
May 18, 2:41 PM EDT	Special Weather Statement	BUF	Ontario	34 min
May 18, 3:13 PM EDT	Special Weather Statement	BUF	Wyoming	32 min
May 18, 3:17 PM EDT	Severe Thunderstorm Warning	BUF	Cattaraugus, Erie, Wyoming	43 min
May 18, 3:22 PM EDT	Severe Thunderstorm Warning	BUF	Livingston, Monroe, Ontario, Wayne	38 min
May 18, 3:51 PM EDT	Special Weather Statement	BUF	Livingston, Ontario	24 min
May 18, 3:57 PM EDT	Severe Thunderstorm Warning	BUF	Livingston, Ontario, Wyoming	48 min
May 18, 4:05 PM EDT	Severe Thunderstorm Warning	BUF	Ontario	40 min
May 18, 4:39 PM EDT	Severe Thunderstorm Warning	BUF	Livingston, Ontario	51 min
May 18, 5:25 PM EDT	Special Weather Statement	BUF	Cayuga	35 min
May 18, 5:28 PM EDT	Severe Thunderstorm Warning	BUF	Jefferson, Lewis	47 min
May 18, 5:41 PM EDT	Severe Thunderstorm Warning	BUF	Jefferson, Lewis, Oswego	64 min
May 18, 6:17 PM EDT	Special Weather Statement	BUF	Allegany	28 min
May 18, 6:17 PM EDT	Severe Thunderstorm Warning	BUF	Lewis, Oswego	28 min
May 18, 6:45 PM EDT	Special Weather Statement	BUF	Lewis	45 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.