Alert archive / New York / Severe Thunderstorm Warnings in 2025
Severe Thunderstorm Warning 71, NWS Buffalo, NY
NWS Buffalo, NY issued this severe thunderstorm warning at Aug 24, 2025, 1:55 PM EDT for Cayuga County, Oswego County, Wayne County, New York. It was in force for 50 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
- Aug 24, 2025, 1:55 PM EDT (17:55 UTC)
- Expired
- Aug 24, 2025, 2:45 PM EDT
- In force
- 50 min
- Issued by
- NWS Buffalo, NY
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Cayuga County, NY, Oswego County, NY, Wayne County, NY
The radar
The Ft Drum radar (KTYX), 84 km from the middle of the area, began a volume at 17:56 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 |
|---|---|---|---|
| Aug 24, 2:09 PM EDT | TSTM WND DMG | 2 N Cato, NY | Report of 2 trees down in the town of Ira. Time estimated from radar. |
| Aug 24, 2:11 PM EDT | HAIL 1 | Cato, NY | Image sent with hail and tape measure. Time estimated from radar. |
| Aug 24, 2:11 PM EDT | HAIL 1.25 | Cato, NY | Estimated hail size from picture. Time estimated from radar. |
| Aug 24, 2:13 PM EDT | HAIL 1.5 | Cato, NY | Delayed report. Time estimated from 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, 5.9 hours before the alert went out and 191 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
- 79 J/kg
- Mixed-layer CIN
- -61 J/kg
- Mixed-layer LCL
- 810 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 51 m²/s²
- 0-3 km storm-relative helicity
- 66 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.0
The text
As transmitted.
390
WUUS51 KBUF 241755
SVRBUF
NYC011-075-117-241845-
/O.NEW.KBUF.SV.W.0071.250824T1755Z-250824T1845Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Buffalo NY
155 PM EDT Sun Aug 24 2025
The National Weather Service in Buffalo has issued a
* Severe Thunderstorm Warning for...
East central Wayne County in western New York...
Cayuga County in central New York...
Southwestern Oswego County in central New York...
* Until 245 PM EDT.
* At 154 PM EDT, a severe thunderstorm was located near Cato, or 11
miles south of Fair Haven Beach State Park, 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...
Fulton, Cato, Phoenix, Ira, Conquest, Red Creek, Meridian, Sand
Ridge, South Hannibal, and Pennellville.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4320 7622 4324 7626 4324 7627 4323 7626
4320 7627 4323 7631 4323 7648 4315 7647
4314 7649 4311 7647 4311 7649 4309 7650
4306 7675 4324 7679 4333 7633 4327 7621
4324 7621 4322 7619
TIME...MOT...LOC 1754Z 257DEG 26KT 4318 7667
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Brothers1 follow-up statement
789
WWUS51 KBUF 241827
SVSBUF
Severe Weather Statement
National Weather Service Buffalo NY
227 PM EDT Sun Aug 24 2025
NYC011-117-241836-
/O.CAN.KBUF.SV.W.0071.000000T0000Z-250824T1845Z/
Wayne NY-Cayuga NY-
227 PM EDT Sun Aug 24 2025
...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL WAYNE AND CAYUGA
COUNTIES IS CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area in eastern Wayne County and Cayuga County.
Therefore, the warning has been cancelled.
&&
LAT...LON 4320 7622 4324 7626 4324 7627 4323 7626
4320 7627 4323 7631 4323 7648 4326 7648
4331 7644 4333 7633 4327 7621 4324 7621
4322 7619
TIME...MOT...LOC 1826Z 257DEG 22KT 4322 7641
$$
NYC075-241845-
/O.CON.KBUF.SV.W.0071.000000T0000Z-250824T1845Z/
Oswego NY-
227 PM EDT Sun Aug 24 2025
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 245 PM EDT
FOR SOUTHWESTERN OSWEGO COUNTY...
At 226 PM EDT, a severe thunderstorm was located over Lysander, or
near Baldwinsville, moving east at 25 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...
Fulton, Phoenix, Sand Ridge, Pennellville, and Hinmansville.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4320 7622 4324 7626 4324 7627 4323 7626
4320 7627 4323 7631 4323 7648 4326 7648
4331 7644 4333 7633 4327 7621 4324 7621
4322 7619
TIME...MOT...LOC 1826Z 257DEG 22KT 4322 7641
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
BrothersThe office that day
Everything else NWS Buffalo, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 24, 10:47 AM EDT | Special Marine Warning | BUF | 88 min | |
| Aug 24, 12:29 PM EDT | Small Craft Advisory | BUF | 62 hr | |
| Aug 24, 12:45 PM EDT | Severe Thunderstorm Warning | BUF | Ontario, Wayne | 45 min |
| Aug 24, 1:20 PM EDT | Tornado Warning | BUF | Wayne | 40 min |
| Aug 24, 1:49 PM EDT | Severe Thunderstorm Warning | BUF | Oswego | 56 min |
| Aug 24, 1:59 PM EDT | Severe Thunderstorm Warning | BUF | Monroe, Ontario, Wayne | 61 min |
| Aug 24, 2:08 PM EDT | Tornado Warning | BUF | Cayuga | 17 min |
| Aug 24, 2:45 PM EDT | Severe Thunderstorm Warning | BUF | Lewis, Oswego | 32 min |
| Aug 24, 2:56 PM EDT | Severe Thunderstorm Warning | BUF | Cayuga, Oswego, Wayne | 64 min |
| Aug 24, 4:12 PM EDT | Severe Thunderstorm Warning | BUF | Oswego | 33 min |
Nearby
Severe Thunderstorm Warnings in New York, 2025Every severe thunderstorm warning in 2025
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.