Alert archive / New York / Severe Thunderstorm Warnings in 2026

Severe Thunderstorm Warning 39, NWS Buffalo, NY

June 10, 2026Cattaraugus County, Chautauqua County, Erie County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at Jun 10, 2026, 11:44 PM EDT for Cattaraugus County, Chautauqua County, Erie County, New York. It was in force for 61 min. 2 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: Jun 10, 2026, 11:44 PM EDT (03:44 UTC)
Expired: Jun 11, 2026, 12:45 AM EDT
In force: 61 min
Issued by: NWS Buffalo, NY
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Cattaraugus County, NY, Chautauqua County, NY, Erie County, NY

The radar

The Buffalo radar (KBUF), 79 km from the middle of the area, began a volume at 03:46 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 10, 11:50 PM EDT	TSTM WND DMG	3 S Jamestown West, NY	Tree down in Busti.
Jun 10, 11:51 PM EDT	MARINE TSTM WIND 44	1 Nw Dunkirk, 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 00:00Z, 3.7 hours before the alert went out and 79 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: 463 J/kg
Mixed-layer CIN: -136 J/kg
Mixed-layer LCL: 767 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: 101 m²/s²
0-3 km storm-relative helicity: 215 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

As transmitted.

132 
WUUS51 KBUF 110344
SVRBUF
NYC009-013-029-110445-
/O.NEW.KBUF.SV.W.0039.260611T0344Z-260611T0445Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Buffalo NY
1144 PM EDT Wed Jun 10 2026

The National Weather Service in Buffalo has issued a

* Severe Thunderstorm Warning for...
  Western Cattaraugus County in western New York...
  Southwestern Erie County in western New York...
  Chautauqua County in western New York...

* Until 1245 AM EDT.

* At 1144 PM EDT, a severe thunderstorm was located over Mayville, or
  15 miles southwest of Fredonia, moving east at 30 mph.

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

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees.

* Locations impacted include...
  Jamestown, Dunkirk, Fredonia, Allegany State Park, Evans,
  Westfield, Lakewood, Silver Creek, Falconer, and Angola.

This includes the following highways...
 Interstate 90 between exits 57A and 60.
 Interstate 86 between exits 6 and 16.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Large hail, damaging wind, and continuous cloud to ground lightning
are 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 4200 7956 4237 7966 4244 7950 4253 7939
      4260 7919 4270 7910 4276 7896 4200 7892
TIME...MOT...LOC 0344Z 251DEG 27KT 4224 7946 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Thomas

2 follow-up statements

434 
WWUS51 KBUF 110407
SVSBUF

Severe Weather Statement
National Weather Service Buffalo NY
1207 AM EDT Thu Jun 11 2026

NYC009-013-029-110445-
/O.CON.KBUF.SV.W.0039.000000T0000Z-260611T0445Z/
Cattaraugus NY-Erie NY-Chautauqua NY-
1207 AM EDT Thu Jun 11 2026

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1245 AM EDT
FOR WESTERN CATTARAUGUS...SOUTHWESTERN ERIE AND CHAUTAUQUA
COUNTIES...

At 1207 AM EDT, a severe thunderstorm was located near Fredonia,
moving northeast at 30 mph.

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

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees.

Locations impacted include...
Jamestown, Dunkirk, Fredonia, Allegany State Park, Evans, Lakewood,
Silver Creek, Falconer, Angola, and Jamestown West.

This includes the following highways...
 Interstate 90 between exits 57A and 59.
 Interstate 86 between exits 9 and 16.

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 4200 7932 4238 7949 4244 7950 4253 7939
      4254 7934 4257 7929 4260 7919 4270 7910
      4276 7896 4200 7892
TIME...MOT...LOC 0407Z 247DEG 25KT 4241 7928 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Thomas

964 
WWUS51 KBUF 110440
SVSBUF

Severe Weather Statement
National Weather Service Buffalo NY
1240 AM EDT Thu Jun 11 2026

NYC009-013-029-110449-
/O.EXP.KBUF.SV.W.0039.000000T0000Z-260611T0445Z/
Cattaraugus NY-Erie NY-Chautauqua NY-
1240 AM EDT Thu Jun 11 2026

...THE SEVERE THUNDERSTORM WARNING FOR WESTERN CATTARAUGUS...
SOUTHWESTERN ERIE AND CHAUTAUQUA COUNTIES WILL EXPIRE AT 1245 AM
EDT...

The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.

&&

LAT...LON 4200 7932 4238 7949 4244 7950 4253 7939
      4254 7934 4257 7929 4260 7919 4270 7910
      4276 7896 4200 7892
TIME...MOT...LOC 0439Z 275DEG 30KT 4206 7882 

$$

Thomas

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 10, 10:34 PM EDT	Special Marine Warning	BUF		86 min
Jun 10, 10:45 PM EDT	Severe Thunderstorm Warning	BUF	Chautauqua	60 min
Jun 10, 11:53 PM EDT	Special Marine Warning	BUF		52 min
Jun 11, 1:03 PM EDT	Special Marine Warning	BUF		57 min
Jun 11, 1:16 PM EDT	Severe Thunderstorm Warning	BUF	Cattaraugus, Chautauqua, Erie	33 min
Jun 11, 2:54 PM EDT	Severe Thunderstorm Warning	BUF	Cattaraugus, Chautauqua	66 min
Jun 11, 3:20 PM EDT	Severe Thunderstorm Warning	BUF	Livingston, Monroe, Ontario, Wayne	55 min
Jun 11, 3:31 PM EDT	Severe Thunderstorm Warning	BUF	Livingston, Ontario	32 min
Jun 11, 3:45 PM EDT	Small Craft Advisory	BUF		30 hr
Jun 11, 3:57 PM EDT	Severe Thunderstorm Warning	BUF	Genesee, Monroe, Orleans	63 min
Jun 11, 4:23 PM EDT	Special Marine Warning	BUF		52 min

Nearby

Severe Thunderstorm Warnings in New York, 2026 Every severe thunderstorm warning in 2026

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.