Alert archive / New York / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 5, NWS Buffalo, NY

May 26, 2021Cayuga County, Oswego County, Wayne County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at May 26, 2021, 11:59 AM EDT for Cayuga County, Oswego County, Wayne County, New York. It was in force for 61 min. 4 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 26, 2021, 11:59 AM EDT (15:59 UTC)
Expired: May 26, 2021, 1:00 PM EDT
In force: 61 min
Issued by: NWS Buffalo, NY
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

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

The radar

The Ft Drum radar (KTYX), 79 km from the middle of the area, began a volume at 16:02 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.

What was reported inside it

Time	Report	Where	Remark
May 26, 12:00 PM EDT	TSTM WND DMG	2 Sse Sodus Point, NY	TREES AND WIRES DOWN.
May 26, 12:06 PM EDT	TSTM WND DMG	Wolcott, NY	TREES DOWN IN TOWN.
May 26, 12:35 PM EDT	TSTM WND DMG	6 Ssw Fulton, NY	TREES AND WIRES DOWN ON MERRITT RD IN GRANBY. TIME ESTIMATED BY RADAR.
May 26, 12:46 PM EDT	TSTM WND DMG	Palermo, NY	TREES AND WIRES DOWN ON ROUTE 45 IN PALERMO. TIME ESTIMATED BY RADAR.

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, 4.0 hours before the alert went out and 186 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: 26 J/kg
Mixed-layer CIN: -100 J/kg
Mixed-layer LCL: 1679 m above ground
0-6 km bulk shear: 28 kt
0-1 km storm-relative helicity: 105 m²/s²
0-3 km storm-relative helicity: 127 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

838 
WUUS51 KBUF 261559
SVRBUF
NYC011-075-117-261700-
/O.NEW.KBUF.SV.W.0005.210526T1559Z-210526T1700Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Buffalo NY
1159 AM EDT Wed May 26 2021

The National Weather Service in Buffalo has issued a

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

* Until 100 PM EDT..

* At 1159 AM EDT, a severe thunderstorm was located near Chimney
  Bluffs State Park, or 14 miles southwest of Fair Haven Beach State
  Park, moving east at 50 mph.

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

  SOURCE...Radar indicated.

  IMPACT...Expect damage to roofs, siding, and trees.

* Locations impacted include...
  Oswego, Fulton, Fair Haven Beach State Park, Lyons, Central Square,
  Chimney Bluffs State Park, Mexico Point State Park, Nine Mile
  Point, Battle Island State Park and Scriba.

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 4325 7617 4327 7620 4324 7621 4323 7648
      4320 7648 4307 7700 4329 7704 4334 7691
      4335 7681 4339 7673 4343 7669 4356 7633
      4356 7628 4359 7626 4360 7623 4325 7614
TIME...MOT...LOC 1559Z 249DEG 43KT 4320 7690 

HAIL...0.75IN
WIND...60MPH
 
$$

Hitchcock

3 follow-up statements

734 
WWUS51 KBUF 261627
SVSBUF

Severe Weather Statement
National Weather Service Buffalo NY
1227 PM EDT Wed May 26 2021

NYC117-261636-
/O.CAN.KBUF.SV.W.0005.000000T0000Z-210526T1700Z/
Wayne NY-
1227 PM EDT Wed May 26 2021

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN WAYNE COUNTY IS
CANCELLED...

The storms which prompted the warning have moved out of the warned 
area. Therefore, the warning has been cancelled.

LAT...LON 4325 7617 4327 7620 4327 7621 4324 7621
      4323 7648 4320 7648 4315 7669 4337 7670
      4343 7669 4356 7633 4356 7628 4359 7626
      4360 7623 4325 7614
TIME...MOT...LOC 1626Z 244DEG 42KT 4346 7645 4318 7662 

$$

NYC011-075-261700-
/O.CON.KBUF.SV.W.0005.000000T0000Z-210526T1700Z/
Cayuga NY-Oswego NY-
1227 PM EDT Wed May 26 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 100 PM EDT
FOR CAYUGA AND SOUTHWESTERN OSWEGO COUNTIES...

At 1226 PM EDT, severe thunderstorms were located along a line
extending from near Oswego to near Cato, 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 
         roofs, siding, and trees.

Locations impacted include...
Oswego, Fulton, Fair Haven Beach State Park, Central Square, Nine
Mile Point, Mexico Point State Park, Battle Island State Park,
Scriba, Volney and Palermo.

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 these storms.
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 4325 7617 4327 7620 4327 7621 4324 7621
      4323 7648 4320 7648 4315 7669 4337 7670
      4343 7669 4356 7633 4356 7628 4359 7626
      4360 7623 4325 7614
TIME...MOT...LOC 1626Z 244DEG 42KT 4346 7645 4318 7662 

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

Hitchcock

589 
WWUS51 KBUF 261648
SVSBUF

Severe Weather Statement
National Weather Service Buffalo NY
1248 PM EDT Wed May 26 2021

NYC011-261657-
/O.CAN.KBUF.SV.W.0005.000000T0000Z-210526T1700Z/
Cayuga NY-
1248 PM EDT Wed May 26 2021

...THE SEVERE THUNDERSTORM WARNING FOR CAYUGA COUNTY IS CANCELLED...

The storms which prompted the warning have moved out of the warned 
area. Therefore, the warning has been cancelled.

LAT...LON 4325 7617 4327 7620 4327 7621 4324 7621
      4323 7648 4350 7649 4352 7644 4356 7628
      4359 7626 4360 7623 4325 7614
TIME...MOT...LOC 1647Z 249DEG 43KT 4355 7613 4327 7631 

$$

NYC075-261700-
/O.CON.KBUF.SV.W.0005.000000T0000Z-210526T1700Z/
Oswego NY-
1248 PM EDT Wed May 26 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 100 PM EDT
FOR SOUTHWESTERN OSWEGO COUNTY...

At 1247 PM EDT, severe thunderstorms were located along a line
extending from Pulaski to 6 miles southeast of Fulton, moving east at
50 mph.

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

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

Locations impacted include...
Oswego, Fulton, Central Square, Nine Mile Point, Mexico Point State
Park, Battle Island State Park, Scriba, Volney, Palermo and New
Haven.

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 these storms.
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 4325 7617 4327 7620 4327 7621 4324 7621
      4323 7648 4350 7649 4352 7644 4356 7628
      4359 7626 4360 7623 4325 7614
TIME...MOT...LOC 1647Z 249DEG 43KT 4355 7613 4327 7631 

HAIL...0.75IN
WIND...60MPH
 
$$

Hitchcock

600 
WWUS51 KBUF 261701
SVSBUF

Severe Weather Statement
National Weather Service Buffalo NY
101 PM EDT Wed May 26 2021

NYC075-261710-
/O.EXP.KBUF.SV.W.0005.000000T0000Z-210526T1700Z/
Oswego NY-
101 PM EDT Wed May 26 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN OSWEGO COUNTY HAS
EXPIRED...
    
The storms which prompted the warning have moved out of the area.
Therefore, the warning has been allowed to expire.

A separate Severe Thunderstorm Warning remains in effect for eastern 
Oswego County until 115 PM EDT.

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Buffalo.

LAT...LON 4325 7617 4327 7620 4327 7621 4324 7621
      4323 7648 4350 7649 4352 7644 4356 7628
      4359 7626 4360 7623 4325 7614
TIME...MOT...LOC 1700Z 249DEG 43KT 4361 7593 4333 7611 

$$

Hitchcock

The office that day

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

Issued	Product	Office	Counties	Lasted
May 26, 10:19 AM EDT	Small Craft Advisory	BUF		9 hr
May 26, 11:17 AM EDT	Special Weather Statement	BUF	Livingston	28 min
May 26, 11:31 AM EDT	Special Weather Statement	BUF	Wayne	29 min
May 26, 11:44 AM EDT	Special Weather Statement	BUF	Livingston	16 min
May 26, 11:53 AM EDT	Special Marine Warning	BUF		52 min
May 26, 12:03 PM EDT	Special Weather Statement	BUF	Allegany	27 min
May 26, 12:36 PM EDT	Severe Thunderstorm Warning	BUF	Oswego	39 min
May 26, 12:57 PM EDT	Severe Thunderstorm Warning	BUF	Lewis	63 min
May 26, 1:57 PM EDT	Special Weather Statement	BUF	Chautauqua	33 min
May 26, 2:05 PM EDT	Severe Thunderstorm Warning	BUF	Cattaraugus, Chautauqua	43 min
May 26, 4:25 PM EDT	Small Craft Advisory	BUF		16 hr

Nearby

Severe Thunderstorm Warnings in New York, 2021 Every severe thunderstorm warning in 2021

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.