Alert archive / New York / Severe Thunderstorm Warnings in 2026
Severe Thunderstorm Warning 41, NWS Buffalo, NY
NWS Buffalo, NY issued this severe thunderstorm warning at Jun 11, 2026, 2:54 PM EDT for Cattaraugus County, Chautauqua County, New York. It was in force for 66 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 11, 2026, 2:54 PM EDT (18:54 UTC)
- Expired
- Jun 11, 2026, 4:00 PM EDT
- In force
- 66 min
- Issued by
- NWS Buffalo, NY
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Cattaraugus County, NY, Chautauqua County, NY
The radar
The Buffalo radar (KBUF), 98 km from the middle of the area, began a volume at 18:54 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 11, 3:11 PM EDT | TSTM WND DMG | 2 E Frewsburg, NY | Tree 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 |
|---|---|---|---|
| Jun 11, 1:20 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 6.9 hours before the alert went out and 97 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.
- Mixed-layer CAPE
- 201 J/kg
- Mixed-layer CIN
- -153 J/kg
- Mixed-layer LCL
- 1032 m above ground
- 0-6 km bulk shear
- 103 kt
- 0-1 km storm-relative helicity
- -20 m²/s²
- 0-3 km storm-relative helicity
- -79 m²/s²
- Significant tornado parameter
- -0.0
- Supercell composite
- -0.0
The text
As transmitted.
324
WUUS51 KBUF 111854
SVRBUF
NYC009-013-112000-
/O.NEW.KBUF.SV.W.0041.260611T1854Z-260611T2000Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Buffalo NY
254 PM EDT Thu Jun 11 2026
The National Weather Service in Buffalo has issued a
* Severe Thunderstorm Warning for...
Western Cattaraugus County in western New York...
Southeastern Chautauqua County in western New York...
* Until 400 PM EDT.
* At 253 PM EDT, a severe thunderstorm was located near Russell and
moving northeast at 35 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Salamanca, Allegany State Park, Frewsburg, Great Valley, New
Albion, Carrollton, Randolph, Napoli, Little Valley, and East Otto.
This includes Interstate 86 between exits 14 and 23.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4200 7924 4201 7928 4243 7870 4201 7853
4200 7858
TIME...MOT...LOC 1853Z 230DEG 32KT 4200 7908
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Reynolds2 follow-up statements
746
WWUS51 KBUF 111941
SVSBUF
Severe Weather Statement
National Weather Service Buffalo NY
341 PM EDT Thu Jun 11 2026
NYC013-111950-
/O.CAN.KBUF.SV.W.0041.000000T0000Z-260611T2000Z/
Chautauqua NY-
341 PM EDT Thu Jun 11 2026
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN CHAUTAUQUA COUNTY
IS CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 800 PM EDT for
western New York.
&&
LAT...LON 4200 7906 4217 7905 4243 7870 4201 7853
4200 7858
TIME...MOT...LOC 1940Z 230DEG 32KT 4227 7864
$$
NYC009-112000-
/O.CON.KBUF.SV.W.0041.000000T0000Z-260611T2000Z/
Cattaraugus NY-
341 PM EDT Thu Jun 11 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 PM EDT
FOR WESTERN CATTARAUGUS COUNTY...
At 340 PM EDT, a severe thunderstorm was located near Ashford, or 8
miles northeast of Salamanca, moving northeast at 35 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Salamanca, Allegany State Park, Great Valley, New Albion, Carrollton,
Randolph, Napoli, Little Valley, East Otto, and East Randolph.
This includes Interstate 86 between exits 15 and 23.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4200 7906 4217 7905 4243 7870 4201 7853
4200 7858
TIME...MOT...LOC 1940Z 230DEG 32KT 4227 7864
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Reynolds348
WWUS51 KBUF 112000
SVSBUF
Severe Weather Statement
National Weather Service Buffalo NY
400 PM EDT Thu Jun 11 2026
NYC009-112010-
/O.EXP.KBUF.SV.W.0041.000000T0000Z-260611T2000Z/
Cattaraugus NY-
400 PM EDT Thu Jun 11 2026
...THE SEVERE THUNDERSTORM WARNING FOR WESTERN CATTARAUGUS COUNTY HAS
EXPIRED...
The severe thunderstorm which prompted the warning has weakened
Therefore, the warning has been allowed to expire.
A Severe Thunderstorm Watch remains in effect until 800 PM EDT for
western New York.
&&
LAT...LON 4200 7906 4217 7905 4243 7870 4201 7853
4200 7858
TIME...MOT...LOC 2000Z 230DEG 32KT 4237 7848
$$
ReynoldsThe 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, 11:44 PM EDT | Severe Thunderstorm Warning | BUF | Cattaraugus, Chautauqua, Erie | 61 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, 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, 2026Every 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.