Alert archive / New York / Severe Thunderstorm Warnings in 2020
Severe Thunderstorm Warning 87, NWS Buffalo, NY
NWS Buffalo, NY issued this severe thunderstorm warning at Aug 25, 2020, 2:27 AM EDT for 4 counties in New York. It was in force for 63 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
- Aug 25, 2020, 2:27 AM EDT (06:27 UTC)
- Expired
- Aug 25, 2020, 3:30 AM EDT
- In force
- 63 min
- Issued by
- NWS Buffalo, NY
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Genesee County, NY, Monroe 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 06:26 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 |
|---|---|---|---|
| Aug 25, 2:41 AM EDT | TSTM WND DMG | Gaines, NY | TREE DOWN ON RIDGE RD BLOCKING ROAD |
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, 6.5 hours before the alert went out and 52 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
- 364 J/kg
- Mixed-layer CIN
- -72 J/kg
- Mixed-layer LCL
- 1291 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 74 m²/s²
- 0-3 km storm-relative helicity
- 73 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.1
The text
As transmitted.
330 WUUS51 KBUF 250627 SVRBUF NYC037-055-063-073-250730- /O.NEW.KBUF.SV.W.0087.200825T0627Z-200825T0730Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Buffalo NY 227 AM EDT Tue Aug 25 2020 The National Weather Service in Buffalo has issued a * Severe Thunderstorm Warning for... Northeastern Niagara County in western New York... Orleans County in western New York... Northwestern Monroe County in western New York... Northeastern Genesee County in western New York... * Until 330 AM EDT.. * At 225 AM EDT, a severe thunderstorm was located near Medina, moving east at 35 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. * Locations impacted include... Brockport, Medina, Albion, Hilton, Hamlin Beach State Park, Spencerport, Churchville, Middleport, Holley and Waterport. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. Damaging winds and frequent 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. Heavy rainfall is occurring with this storm, and may lead to localized flooding. Do not drive your vehicle through flooded roadways. && LAT...LON 4322 7856 4341 7850 4336 7777 4307 7780 TIME...MOT...LOC 0625Z 279DEG 32KT 4327 7844 HAIL...<.75IN WIND...60MPH $$ Welch
2 follow-up statements
536 WWUS51 KBUF 250706 SVSBUF Severe Weather Statement National Weather Service Buffalo NY 306 AM EDT Tue Aug 25 2020 NYC037-055-063-073-250730- /O.CON.KBUF.SV.W.0087.000000T0000Z-200825T0730Z/ Niagara NY-Orleans NY-Monroe NY-Genesee NY- 306 AM EDT Tue Aug 25 2020 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 330 AM EDT FOR NORTHEASTERN NIAGARA...ORLEANS...NORTHWESTERN MONROE AND NORTHEASTERN GENESEE COUNTIES... At 305 AM EDT, a severe thunderstorm was located over Brockport, moving east at 35 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include... Brockport, Medina, Albion, Hilton, Hamlin Beach State Park, Spencerport, Churchville, Middleport, Holley and Waterport. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. Occasional cloud to ground lightning is occurring with this storm. Move indoors immediately. Lightning is one of nature's leading killers. Remember, if you can hear thunder, you are close enough to be struck by lightning. Heavy rainfall is occurring with this storm, and may lead to localized flooding. Do not drive your vehicle through flooded roadways. && LAT...LON 4322 7856 4341 7850 4336 7777 4307 7780 TIME...MOT...LOC 0704Z 279DEG 32KT 4321 7796 HAIL...<.75IN WIND...60MPH $$ Welch
260
WWUS51 KBUF 250732
SVSBUF
Severe Weather Statement
National Weather Service Buffalo NY
332 AM EDT Tue Aug 25 2020
NYC037-055-063-073-250741-
/O.EXP.KBUF.SV.W.0087.000000T0000Z-200825T0730Z/
Niagara NY-Orleans NY-Monroe NY-Genesee NY-
332 AM EDT Tue Aug 25 2020
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN NIAGARA...
ORLEANS...NORTHWESTERN MONROE AND NORTHEASTERN GENESEE COUNTIES HAS
EXPIRED...
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning has
been allowed to expire. However, gusty winds and cloud to ground
lightning are still possible with other thunderstorms in this area.
LAT...LON 4322 7856 4341 7850 4336 7777 4307 7780
TIME...MOT...LOC 0731Z 279DEG 32KT 4318 7766
$$
WelchThe office that day
Everything else NWS Buffalo, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 25, 1:28 AM EDT | Special Marine Warning | BUF | 92 min | |
| Aug 25, 1:52 AM EDT | Special Marine Warning | BUF | 53 min | |
| Aug 25, 1:59 AM EDT | Severe Thunderstorm Warning | BUF | Erie, Niagara | 61 min |
| Aug 25, 2:40 AM EDT | Special Weather Statement | BUF | Erie | 50 min |
| Aug 25, 2:46 AM EDT | Special Marine Warning | BUF | 59 min | |
| Aug 25, 3:14 AM EDT | Special Weather Statement | BUF | Jefferson, Monroe, Ontario, Oswego, Wayne | 91 min |
| Aug 25, 3:18 AM EDT | Special Weather Statement | BUF | Allegany, Cattaraugus, Chautauqua, Livingston, Wyoming | 87 min |
| Aug 25, 3:45 AM EDT | Severe Thunderstorm Warning | BUF | Cattaraugus, Chautauqua | 60 min |
| Aug 25, 4:25 AM EDT | Small Craft Advisory | BUF | 24 hr | |
| Aug 25, 4:26 AM EDT | Beach Hazards Statement | BUF | Cayuga, Jefferson, Monroe, Oswego, Wayne | 24 hr |
| Aug 25, 11:54 AM EDT | Special Weather Statement | BUF | Ontario | 51 min |
Nearby
Severe Thunderstorm Warnings in New York, 2020Every severe thunderstorm warning in 2020
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.