Alert archive / New York / Severe Thunderstorm Warnings in 2026
Severe Thunderstorm Warning 70, NWS Buffalo, NY
NWS Buffalo, NY issued this severe thunderstorm warning at Jul 9, 2026, 4:23 PM EDT for 4 counties in New York. It was in force for 67 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
- Jul 9, 2026, 4:23 PM EDT (20:23 UTC)
- Expired
- Jul 9, 2026, 5:30 PM EDT
- In force
- 67 min
- Issued by
- NWS Buffalo, NY
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Erie County, NY, Genesee County, NY, Niagara County, NY, Orleans County, NY
The radar
The Buffalo radar (KBUF), 53 km from the middle of the area, began a volume at 20:26 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 |
|---|---|---|---|
| Jul 9, 4:42 PM EDT | TSTM WND DMG | 4 S Medina, NY | Trees and wires downed in Shelby. Time estimated via radar. |
| Jul 9, 4:44 PM EDT | TSTM WND DMG | Alabama, NY | Tree and wires down. Time estimated by radar. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
Did it verify
Verified. The Iowa Environmental Mesonet's Cow matched 2 storm reports to this severe thunderstorm warning; the first came 19 minutes after it went out.
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
Pittsburgh, PA (KPIT), launched 12:00Z, 8.4 hours before the alert went out and 353 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
- 7 J/kg
- Mixed-layer CIN
- -45 J/kg
- Mixed-layer LCL
- 1154 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 0 m²/s²
- 0-3 km storm-relative helicity
- 15 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
217
WUUS51 KBUF 092023
SVRBUF
NYC029-037-063-073-092130-
/O.NEW.KBUF.SV.W.0070.260709T2023Z-260709T2130Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Buffalo NY
423 PM EDT Thu Jul 9 2026
The National Weather Service in Buffalo has issued a
* Severe Thunderstorm Warning for...
Northeastern Erie County in western New York...
Niagara County in western New York...
Orleans County in western New York...
Northwestern Genesee County in western New York...
* Until 530 PM EDT.
* At 423 PM EDT, severe thunderstorms were located along a line
extending from 10 miles northeast of Newfane to near Amherst,
moving east at 25 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
North Tonawanda, Lockport, Amherst, Tonawanda, Medina, Albion,
Hamlin Beach State Park, Newfane, Pendleton, and Middleport.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
To report severe weather, contact your nearest law enforcement
agency. They will send your report to the National Weather Service
office in Buffalo.
&&
LAT...LON 4299 7891 4339 7869 4340 7864 4342 7842
4341 7797 4340 7786 4335 7788 4337 7796
4336 7799 4313 7799 4310 7801
TIME...MOT...LOC 2023Z 270DEG 24KT 4342 7858 4306 7878
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Fries3 follow-up statements
761
WWUS51 KBUF 092049
SVSBUF
Severe Weather Statement
National Weather Service Buffalo NY
449 PM EDT Thu Jul 9 2026
NYC029-063-092059-
/O.CAN.KBUF.SV.W.0070.000000T0000Z-260709T2130Z/
Erie NY-Niagara NY-
449 PM EDT Thu Jul 9 2026
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN ERIE AND NIAGARA
COUNTIES IS CANCELLED...
The storms which prompted the warning have moved out of the warned
area. Therefore, the warning has been cancelled.
&&
LAT...LON 4342 7824 4340 7786 4335 7788 4337 7796
4336 7799 4313 7799 4310 7801 4305 7846
4316 7846
TIME...MOT...LOC 2049Z 276DEG 37KT 4334 7817 4307 7849
$$
NYC037-073-092130-
/O.CON.KBUF.SV.W.0070.000000T0000Z-260709T2130Z/
Orleans NY-Genesee NY-
449 PM EDT Thu Jul 9 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 PM EDT
FOR ORLEANS AND NORTHWESTERN GENESEE COUNTIES...
At 449 PM EDT, severe thunderstorms were located along a line
extending from near Point Breeze to near Akron, moving east at 45
mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Medina, Albion, Hamlin Beach State Park, Oakfield, Holley, Waterport,
Lakeside Beach State Park, Point Breeze, Kent, and Shelby.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
Buffalo.
&&
LAT...LON 4342 7824 4340 7786 4335 7788 4337 7796
4336 7799 4313 7799 4310 7801 4305 7846
4316 7846
TIME...MOT...LOC 2049Z 276DEG 37KT 4334 7817 4307 7849
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Fries044
WWUS51 KBUF 092113
SVSBUF
Severe Weather Statement
National Weather Service Buffalo NY
513 PM EDT Thu Jul 9 2026
NYC037-092122-
/O.CAN.KBUF.SV.W.0070.000000T0000Z-260709T2130Z/
Genesee NY-
513 PM EDT Thu Jul 9 2026
...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN GENESEE COUNTY IS
CANCELLED...
The storms which prompted the warning have moved out of
the warned area. Therefore, the warning has been cancelled.
&&
LAT...LON 4340 7786 4335 7788 4337 7796 4336 7799
4314 7800 4313 7801 4315 7817 4338 7804
TIME...MOT...LOC 2112Z 262DEG 29KT 4335 7795 4319 7810
$$
NYC073-092130-
/O.CON.KBUF.SV.W.0070.000000T0000Z-260709T2130Z/
Orleans NY-
513 PM EDT Thu Jul 9 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 PM EDT
FOR EASTERN ORLEANS COUNTY...
At 512 PM EDT, severe thunderstorms were located along a line
extending from Hamlin Beach State Park to near Holley, moving east at
35 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Hamlin Beach State Park, Holley, Clarendon, Kendall, Fancher, and
Morton.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
Buffalo.
&&
LAT...LON 4340 7786 4335 7788 4337 7796 4336 7799
4314 7800 4313 7801 4315 7817 4338 7804
TIME...MOT...LOC 2112Z 262DEG 29KT 4335 7795 4319 7810
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Fries783
WWUS51 KBUF 092120
SVSBUF
Severe Weather Statement
National Weather Service Buffalo NY
520 PM EDT Thu Jul 9 2026
NYC073-092130-
/O.EXP.KBUF.SV.W.0070.000000T0000Z-260709T2130Z/
Orleans NY-
520 PM EDT Thu Jul 9 2026
...THE SEVERE THUNDERSTORM WARNING FOR EASTERN ORLEANS COUNTY WILL
EXPIRE AT 530 PM EDT...
The storms which prompted the warning have weakened below severe
limits, and have exited the warned area. Therefore, the warning will
be allowed to expire.
&&
LAT...LON 4340 7786 4335 7788 4337 7796 4336 7799
4314 7800 4313 7801 4315 7817 4338 7804
TIME...MOT...LOC 2120Z 270DEG 24KT 4335 7791 4319 7806
$$
FriesWhat 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 Jul 9, 1:58 PM EDT, 2 hours 25 minutes earlier. Its key messages:
- 1) Strong to severe thunderstorms expected this afternoon and evening, with a Marginal Risk in place for most of WNY. Additionally, heavy rainfall may produce some isolated areas of flash flooding. 2) Strong to severe thunderstorms possible again tomorrow south of Lake Ontario. Heavy rainfall and isolated areas of flash flooding also possible.
Area forecast discussion, Jul 9, 1:58 PM EDT, 2 hours 25 minutes before
Area Forecast Discussion National Weather Service Buffalo NY 158 PM EDT Thu Jul 9 2026 .WHAT HAS CHANGED... Increased potential for isolated severe weather and flash flooding tomorrow. && .KEY MESSAGES... 1) Strong to severe thunderstorms expected this afternoon and evening, with a Marginal Risk in place for most of WNY. Additionally, heavy rainfall may produce some isolated areas of flash flooding. 2) Strong to severe thunderstorms possible again tomorrow south of Lake Ontario. Heavy rainfall and isolated areas of flash flooding also possible. && .DISCUSSION... Key Message 1...Strong to severe thunderstorms expected this afternoon and evening, with a Marginal Risk in place for most of WNY. Additionally, heavy rainfall may produce some isolated areas of flash flooding. Ahead of an approaching cold front, showers and thunderstorms have formed over most of Ontario early this afternoon, with additional development ongoing along convergence zones off the Great Lakes. Forecast guidance favors the south shore of Lake Ontario for the greatest coverage of storms later this afternoon, with more scattered activity possible elsewhere. Any mature updrafts will have the potential to produce damaging wind gusts and large hail, owing to 30-40 kts of deep layer shear. The limiting factor today will be instability, and the presence of a mid level cap, noted on the 12z BUF sounding. Additionally, heavy rain will fall from these storms as PWATs increase to almost 1.75", and if any training of cells occurs, isolated pockets of flash flooding will be possible. Later tonight, the cold front will move southeast across the area producing additional showers and scattered thunderstorms. Although the risk of severe weather will be low, heavy rainfall will still be a risk with any thunderstorms. Key Message 2...Strong to severe thunderstorms possible again tomorrow south of Lake Ontario. Heavy rainfall and isolated areas of flash flooding also possible. Latest guidance this morning has trended towards a slower passage of the cold front to our south and into PA. This will keep low and mid level moisture in place, and with surface heating later in the day, moderate instability is likely to develop on the order of 1500-2000 J/kg MUCAPEs. Deep layer shear will be weaker (20-30 kts), but still enough to sustain robust convection, which will keep the potential for damaging wind gusts and large hail in the forecast tomorrow south of Lake Ontario. With a high PWAT airmass still in place across the Southern Tier, heavy rainfall from storms will bring the potential for isolated areas of flash flooding, especially in terrain areas and locations that saw heavy rain earlier this week. Showers and thunderstorms will taper off from north to south with loss of heating tomorrow evening, as the cold front finally pushes south of the region. && .AVIATION /18Z THURSDAY THROUGH TUESDAY/... Scattered showers and thunderstorms developing early this afternoon along lake breeze boundaries inland from Lakes Erie and Ontario with reductions to MVFR/IFR conditions most likely to occur near KIAG, KROC, and KART through early this evening. Showers will linger overnight along the cold frontal passage in addition to lowering ceilings to MVFR/IFR levels. As the cold front slowly moves south, additional showers will develop in the morning along with thunderstorms midday that may lead to further flight restrictions. Outlook... Friday Afternoon...Additional showers and thunderstorms likely at times across interior sections with a mix of MVFR/IFR ceilings gradually improving through the afternoon and evening. Saturday through Tuesday...Mainly VFR. && .MARINE... A brief period of 10-15 knot winds ahead of an approaching cold front may cause some light to low-end moderate chop on the lakes this afternoon into the early evening. Otherwise, mainly light winds and negligible waves are expected through the end of the work week. A few stronger thunderstorms will be possible on Lake Ontario later this afternoon into the early evening, capable of producing locally higher winds and waves. && .BUF WATCHES/WARNINGS/ADVISORIES... NY...None. MARINE...None. && DISCUSSION...SGK AVIATION...Brothers MARINE...JM
Hazardous weather outlook, Jul 9, 3:01 AM EDT, 13 hours 22 minutes before
Hazardous Weather Outlook National Weather Service Buffalo NY 301 AM EDT Thu Jul 9 2026 NYZ001>008-010>014-019>021-085-100715- Niagara-Orleans-Monroe-Wayne-Northern Cayuga-Oswego-Jefferson-Lewis- Northern Erie-Genesee-Wyoming-Livingston-Ontario-Chautauqua- Cattaraugus-Allegany-Southern Erie- 301 AM EDT Thu Jul 9 2026 This Hazardous Weather Outlook is for western and north central New York. .DAY ONE...Today and tonight. There is a Marginal Risk for severe thunderstorms this afternoon into the early evening, with the main threat being strong winds. There is also a Marginal Risk for heavy rainfall this afternoon through tonight. .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-LOZ030-042>045-062>065-SLZ022-024-100715- Upper Niagara River and Buffalo Harbor-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- 301 AM EDT Thu Jul 9 2026 This Hazardous Weather Outlook is for portions of Lake Erie, Lake Ontario and Saint Lawrence River. .DAY ONE...Today and tonight. A few strong thunderstorms will be possible across Lake Ontario, the Saint Lawrence River, and the Niagara River this afternoon into the early evening. Any stronger storms will be capable of producing locally higher winds and waves. .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 LEZ040-041-100715- Lake Erie nearshore waters from Ripley to Dunkirk- Lake Erie nearshore waters from Dunkirk to Buffalo- 301 AM EDT Thu Jul 9 2026 This Hazardous Weather Outlook is for portions of Lake Erie. .DAY ONE...Today and 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
In the hours before
Local storm report, Jul 9, 4:22 PM EDT, 1 minute before
Preliminary Local Storm Report
National Weather Service Buffalo NY
422 PM EDT Thu Jul 9 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0404 PM Tstm Wnd Dmg 3 WSW Sanborn 43.12N 78.94W
07/09/2026 Niagara NY 911 Call Center
Wires down.
0404 PM Tstm Wnd Gst 4 WSW Sanborn 43.11N 78.95W
07/09/2026 M49 MPH Niagara NY ASOS
&&
EAJThe office that day
Everything else NWS Buffalo, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 9, 1:50 PM EDT | Special Marine Warning | BUF | 85 min | |
| Jul 9, 2:57 PM EDT | Special Marine Warning | BUF | 93 min | |
| Jul 9, 3:30 PM EDT | Severe Thunderstorm Warning | BUF | Erie, Genesee, Niagara, Orleans | 60 min |
| Jul 9, 5:13 PM EDT | Special Marine Warning | BUF | 37 min | |
| Jul 9, 5:28 PM EDT | Special Marine Warning | BUF | 62 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.