Alert archive / New York / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 68, NWS Buffalo, NY

June 26, 2017Cayuga County, Oswego County, Wayne County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at Jun 26, 2017, 6:34 PM EDT for Cayuga County, Oswego County, Wayne County, New York. It was in force for 56 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, 6:34 PM EDT (22:34 UTC)
Expired
Jun 26, 2017, 7:30 PM EDT
In force
56 min
Issued by
NWS Buffalo, NY
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Cayuga County, NY, Oswego County, NY, Wayne County, NY

The radar

The Ft Drum radar (KTYX), 88 km from the middle of the area, began a volume at 22:34 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

TimeReportWhereRemark
Jun 26, 7:00 PM EDTHAIL 12 Wnw Granby Center, 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, 10.6 hours before the alert went out and 174 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-pSkew-T log-p diagram, Buffalo Intl Airport, NY at 12:00Z on 2017-06-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 68 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Buffalo Intl Airport, NY at 12:00Z on 2017-06-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 40 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
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.

563 
WUUS51 KBUF 262234
SVRBUF
NYC011-075-117-262330-
/O.NEW.KBUF.SV.W.0068.170626T2234Z-170626T2330Z/

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

The National Weather Service in Buffalo has issued a

* Severe Thunderstorm Warning for...
  Northeastern Wayne County in western New York...
  Cayuga County in central New York...
  Southwestern Oswego County in central New York...

* Until 730 PM EDT.

* At 633 PM EDT, a severe thunderstorm was located near Fair Haven
  Beach State Park, 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...
  Oswego, Fulton, Fair Haven Beach State Park, Nine Mile Point,
  Mexico Point State Park, Battle Island State Park, Scriba and
  Volney.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Large hail and damaging winds and continuous cloud to ground
lightning is occurring with this storm. Move indoors immediately.
Lightning is one of nature's leading killers. Remember, if you can
hear thunder, you are close enough to be struck by lightning.

&&

LAT...LON 4324 7687 4334 7690 4335 7681 4339 7673
      4345 7665 4351 7653 4357 7625 4331 7617
TIME...MOT...LOC 2233Z 257DEG 21KT 4335 7680 

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

Zaff
3 follow-up statements
769 
WWUS51 KBUF 262254
SVSBUF

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

NYC117-262304-
/O.CAN.KBUF.SV.W.0068.000000T0000Z-170626T2330Z/
Wayne NY-
654 PM EDT MON JUN 26 2017

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN WAYNE COUNTY IS
CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

LAT...LON 4331 7672 4341 7669 4346 7622 4331 7617
TIME...MOT...LOC 2254Z 264DEG 20KT 4337 7664 

$$

NYC011-075-262330-
/O.CON.KBUF.SV.W.0068.000000T0000Z-170626T2330Z/
Cayuga NY-Oswego NY-
654 PM EDT MON JUN 26 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 730 PM EDT
FOR CAYUGA AND WEST CENTRAL OSWEGO COUNTIES...

At 654 PM EDT, a severe thunderstorm was located near Fair Haven
Beach State Park, 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...
Oswego, Fulton, Fair Haven Beach State Park, Battle Island State
Park, Volney, Palermo, Sterling and Minetto.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.

&&

LAT...LON 4331 7672 4341 7669 4346 7622 4331 7617
TIME...MOT...LOC 2254Z 264DEG 20KT 4337 7664 

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

Zaff
205 
WWUS51 KBUF 262305
SVSBUF

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

NYC011-262314-
/O.CAN.KBUF.SV.W.0068.000000T0000Z-170626T2330Z/
Cayuga NY-
705 PM EDT MON JUN 26 2017

...THE SEVERE THUNDERSTORM WARNING FOR CAYUGA COUNTY IS CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

LAT...LON 4331 7661 4342 7661 4346 7622 4331 7617
TIME...MOT...LOC 2304Z 263DEG 21KT 4335 7657 

$$

NYC075-262330-
/O.CON.KBUF.SV.W.0068.000000T0000Z-170626T2330Z/
Oswego NY-
705 PM EDT MON JUN 26 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 730 PM EDT
FOR WEST CENTRAL OSWEGO COUNTY...

At 704 PM EDT, a severe thunderstorm was located near Fair Haven
Beach State Park, 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...
Oswego, Fulton, Battle Island State Park, Volney, Palermo, Minetto,
Mexico and Hannibal.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.

&&

LAT...LON 4331 7661 4342 7661 4346 7622 4331 7617
TIME...MOT...LOC 2304Z 263DEG 21KT 4335 7657 

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

Zaff
348 
WWUS51 KBUF 262332
SVSBUF

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

NYC075-262341-
/O.EXP.KBUF.SV.W.0068.000000T0000Z-170626T2330Z/
Oswego NY-
732 PM EDT MON JUN 26 2017

...THE SEVERE THUNDERSTORM WARNING FOR WEST CENTRAL OSWEGO COUNTY HAS
EXPIRED...
    
The severe thunderstorm which prompted the warning has weakened. 
Therefore, the warning has been allowed to expire. However gusty 
winds are still possible with this thunderstorm.

LAT...LON 4331 7661 4342 7661 4346 7622 4331 7617
TIME...MOT...LOC 2331Z 257DEG 21KT 4339 7636 

$$

Zaff

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 25, 10:03 PM EDTSmall Craft AdvisoryBUF6 hr
Jun 26, 4:17 AM EDTBeach Hazards StatementBUFChautauqua18 hr
Jun 26, 8:13 AM EDTSpecial Marine WarningBUF62 min
Jun 26, 10:45 AM EDTSpecial Marine WarningBUF60 min
Jun 26, 10:57 AM EDTSpecial Marine WarningBUF33 min
Jun 26, 2:16 PM EDTSpecial Weather StatementBUFWayne29 min
Jun 26, 2:58 PM EDTSpecial Marine WarningBUF92 min
Jun 26, 3:08 PM EDTSpecial Weather StatementBUFCayuga52 min
Jun 26, 4:43 PM EDTSpecial Weather StatementBUFWyoming47 min
Jun 26, 4:47 PM EDTSevere Thunderstorm WarningBUFGenesee, Livingston, Monroe, Wyoming58 min
Jun 26, 5:36 PM EDTSevere Thunderstorm WarningBUFMonroe, Wayne25 min
Jun 26, 5:49 PM EDTSpecial Marine WarningBUF86 min
Jun 26, 5:59 PM EDTSevere Thunderstorm WarningBUFLivingston, Ontario45 min
Jun 26, 7:10 PM EDTSpecial Marine WarningBUF65 min

Nearby

Severe Thunderstorm Warnings in New York, 2017Every 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.