Alert archive / New York / Severe Thunderstorm Warnings in 2026
Severe Thunderstorm Warning 50, NWS Buffalo, NY
NWS Buffalo, NY issued this severe thunderstorm warning at Jun 25, 2026, 10:23 PM EDT for Chautauqua County, New York. It was in force for 67 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jun 25, 2026, 10:23 PM EDT (02:23 UTC)
- Expired
- Jun 25, 2026, 11:30 PM EDT
- In force
- 67 min
- Issued by
- NWS Buffalo, NY
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
County Chautauqua County, NY
The radar
The Buffalo radar (KBUF), 80 km from the middle of the area, began a volume at 02:21 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.
Did it verify
Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.
Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.
The nearest sounding before it
Buffalo Intl Airport, NY (KBUF), launched 00:00Z, 2.4 hours before the alert went out and 81 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
- 877 J/kg
- Mixed-layer CIN
- -9 J/kg
- Mixed-layer LCL
- 782 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 76 m²/s²
- 0-3 km storm-relative helicity
- 91 m²/s²
- Significant tornado parameter
- 0.3
- Supercell composite
- 2.9
The text
As transmitted.
236
WUUS51 KBUF 260223
SVRBUF
NYC013-260330-
/O.NEW.KBUF.SV.W.0050.260626T0223Z-260626T0330Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Buffalo NY
1023 PM EDT Thu Jun 25 2026
The National Weather Service in Buffalo has issued a
* Severe Thunderstorm Warning for...
Chautauqua County in western New York...
* Until 1130 PM EDT.
* At 1023 PM EDT, severe thunderstorms were located along a line
extending from 21 miles north of North East to near Northwest
Harborcreek, moving east at 40 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...
Dunkirk, Fredonia, Westfield, Silver Creek, Mayville, Long Point
State Park, Chautauqua Institution, Lake Erie State Park, SUNY
Fredonia, and Chautauqua.
This includes the following highways...
Interstate 90 between exits 58 and 61.
Interstate 86 between exits 6 and 10.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4231 7977 4244 7950 4253 7938 4254 7934
4258 7927 4260 7918 4259 7913 4257 7914
4256 7909 4254 7906 4223 7906 4215 7934
4213 7976 4227 7976 4228 7973
TIME...MOT...LOC 0223Z 260DEG 33KT 4252 7990 4219 7994
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
SGK1 follow-up statement
164
WWUS51 KBUF 260320
SVSBUF
Severe Weather Statement
National Weather Service Buffalo NY
1120 PM EDT Thu Jun 25 2026
NYC013-260330-
/O.CON.KBUF.SV.W.0050.000000T0000Z-260626T0330Z/
Chautauqua NY-
1120 PM EDT Thu Jun 25 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1130 PM EDT
FOR NORTHERN CHAUTAUQUA COUNTY...
At 1120 PM EDT, severe thunderstorms were located along a line
extending from near Silver Creek to 9 miles northeast of Long Point
State Park, moving east at 40 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Dunkirk, Fredonia, Silver Creek, Mayville, Long Point State Park,
Chautauqua Institution, Lake Erie State Park, SUNY Fredonia,
Chautauqua, and Portland.
This includes the following highways...
Interstate 90 between exits 58 and 59.
Interstate 86 between exits 6 and 10.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4228 7947 4244 7950 4253 7938 4254 7934
4257 7927 4260 7918 4259 7913 4257 7914
4256 7909 4255 7909 4254 7906 4223 7906
4215 7934 4213 7976
TIME...MOT...LOC 0320Z 260DEG 33KT 4261 7923 4228 7927
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
SGKWhat forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Buffalo, NY wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 25, 6:59 PM EDT, 3 hours 24 minutes earlier. Its key messages:
- 1) Rounds of showers and thunderstorms through this evening, then some patchy fog and low clouds overnight through early Friday morning. 2) Trending warmer this weekend and into next week.
Area forecast discussion, Jun 25, 6:59 PM EDT, 3 hours 24 minutes before
Area Forecast Discussion National Weather Service Buffalo NY 659 PM EDT Thu Jun 25 2026 .WHAT HAS CHANGED... Added some fog to the forecast overnight through early Friday morning, mainly across the Niagara Frontier. && .KEY MESSAGES... 1) Rounds of showers and thunderstorms through this evening, then some patchy fog and low clouds overnight through early Friday morning. 2) Trending warmer this weekend and into next week. && .DISCUSSION... KEY MESSAGE 1...Rounds of showers and a few isolated thunderstorms through this evening, then some patchy fog and low clouds overnight through early Friday morning. The widespread rain from earlier today is exiting stage right across eastern NY early this evening. A few more scattered showers are developing across Western NY early this evening. The best coverage of showers through the first half of tonight will be east of Lake Ontario where the best large scale ascent and moisture is found. Farther west across Western NY and the Finger Lakes, a few scattered showers will continue this evening, along with a chance of a few widely scattered thunderstorms from both homegrown activity and the weakening remnants of upstream convection arriving from the west. What little severe weather risk there was today is even lower now, given the impacts of extensive clouds and rain today on stability. Modestly unstable air is attempting to develop and advect into Western NY early this evening, but the loss of daytime heating will quickly end this modest destabilization. There is more than adequate deep layer shear available, but the lack of instability and poor lapse rates will likely be too much to overcome. Overnight, any remaining showers will mostly end from west to east, with a few spotty showers possibly lingering east of Lake Ontario through Friday morning. High-res model guidance and statistical guidance suggests an area of low stratus and fog may develop across Western NY late tonight through early Friday morning, especially across the Niagara Frontier. Added areas of fog to account for this potential. KEY MESSAGE 2...Trending warmer this weekend and into next week. A mid to upper level ridge will begin to build across the Great Lakes this weekend before shifting east into the Northeastern portions of the CONUS through next week. Temperatures will gradually increase by the end of the weekend and into early next week. Heat and humidity will then increase further through the middle of next week, which may result in the potential for heat-related headlines as the risk for dangerous heat indices increase. There continues to be some spread between ensemble members for this period of warmer weather. This is likely due to the potential for scattered showers and thunderstorm both Tuesday and Wednesday that could help bring some short-term relief from the heat. && .AVIATION /00Z FRIDAY THROUGH TUESDAY/... The widespread rain from earlier today is exiting stage right across eastern NY early this evening. A few more scattered showers are developing across Western NY early this evening. The best coverage of showers through the first half of tonight will be east of Lake Ontario where the best large scale ascent and moisture is found. Farther west across Western NY and the Finger Lakes, a few scattered showers will continue this evening, along with a chance of a few widely scattered thunderstorms from both homegrown activity and the weakening remnants of upstream convection arriving from the west. Mainly VFR conditions will prevail through the first half of the night, with any CIG/VSBY restrictions localized to spotty heavier showers. Overnight, any remaining showers will mostly end from west to east, with a few spotty showers possibly lingering east of Lake Ontario through Friday morning. High-res model guidance and statistical guidance suggests an area of low stratus and fog may develop across the region late tonight through Friday morning with areas of MVFR/IFR CIGS. The best chance of fog appears to be across the Niagara Frontier including KBUF and KIAG with areas of IFR VSBY possible. The fog and low stratus will mix out by mid to late morning with a return to VFR conditions for the afternoon. Friday will be mainly dry, with any showers and thunderstorms limited to the Saint Lawrence Valley and northern Adirondacks mainly east and north of KART. Outlook... Friday night through Saturday...VFR in most areas. Some brief/local restrictions possible in scattered showers and thunderstorms across the North Country and Southern Tier. Patchy fog and local IFR possible late Friday night through early Saturday morning. Sunday through Tuesday...Mainly VFR. && .MARINE... Winds and waves will remain well below Small Craft Advisory criteria Friday and into the weekend with a weak pressure gradient in place across the lower Great Lakes. && .BUF WATCHES/WARNINGS/ADVISORIES... NY...None. MARINE...None. && DISCUSSION...Hitchcock/TMA AVIATION...Hitchcock MARINE...TMA
Hazardous weather outlook, Jun 25, 7:00 PM EDT, 3 hours 23 minutes before
Hazardous Weather Outlook National Weather Service Buffalo NY 700 PM EDT Thu Jun 25 2026 NYZ001>008-010>014-019>021-085-262300- Niagara-Orleans-Monroe-Wayne-Northern Cayuga-Oswego-Jefferson-Lewis- Northern Erie-Genesee-Wyoming-Livingston-Ontario-Chautauqua- Cattaraugus-Allegany-Southern Erie- 700 PM EDT Thu Jun 25 2026 This Hazardous Weather Outlook is for western and north central New York. .DAY ONE...Tonight. No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. This product, along with other watches, warnings, advisories, and statements issued by the National Weather Service office in Buffalo can be found on the internet at http://www.weather.gov/buf LEZ020-040-041-LOZ030-042>045-062>065-SLZ022-024-262300- Upper Niagara River and Buffalo Harbor- Lake Erie nearshore waters from Ripley to Dunkirk- Lake Erie nearshore waters from Dunkirk to Buffalo- Lower Niagara River- Lake Ontario nearshore waters from the Niagara River to Hamlin Beach- Lake Ontario nearshore waters from Hamlin Beach to Sodus Bay- Lake Ontario nearshore waters from Sodus Bay to Mexico Bay- Lake Ontario nearshore waters from Mexico Bay to the Saint Lawrence River- Lake Ontario open waters from the Niagara River to Hamlin Beach- Lake Ontario open waters from Hamlin Beach to Sodus Bay- Lake Ontario open waters from Sodus Bay to Mexico Bay- Lake Ontario open waters from Mexico Bay to the Saint Lawrence River- Saint Lawrence River from Cape Vincent to Ogdensburg- Saint Lawrence River from Ogdensburg to Saint Regis- 700 PM EDT Thu Jun 25 2026 This Hazardous Weather Outlook is for the New York waters of Lake Erie, Lake Ontario, and the Saint Lawrence River. .DAY ONE...Tonight. No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. This product, along with other watches, warnings, advisories, and statements issued by the National Weather Service office in Buffalo can be found on the internet at http://www.weather.gov/buf Hitchcock
The office that day
Everything else NWS Buffalo, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 25, 9:40 PM EDT | Special Marine Warning | BUF | 95 min | |
| Jun 25, 11:10 PM EDT | Special Marine Warning | BUF | 50 min | |
| Jun 26, 12:31 AM EDT | Special Marine Warning | BUF | 44 min | |
| Jun 26, 4:37 AM EDT | Special Marine Warning | BUF | 64 min | |
| Jun 26, 5:43 AM EDT | Severe Thunderstorm Warning | BUF | Jefferson, Lewis, Oswego | 18 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.