Alert archive / New York / Severe Thunderstorm Warnings in 2017
Severe Thunderstorm Warning 50, NWS Buffalo, NY
NWS Buffalo, NY issued this severe thunderstorm warning at Jun 18, 2017, 4:29 PM EDT for Genesee County, Orleans County, New York. It was in force for 31 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 18, 2017, 4:29 PM EDT (20:29 UTC)
- Expired
- Jun 18, 2017, 5:00 PM EDT
- In force
- 31 min
- Issued by
- NWS Buffalo, NY
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Genesee County, NY, Orleans County, NY
The radar
The Buffalo radar (KBUF), 38 km from the middle of the area, began a volume at 20:31 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.
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 18, 1:37 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
The nearest sounding before it
Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 8.5 hours before the alert went out and 36 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
- 199 J/kg
- Mixed-layer CIN
- -56 J/kg
- Mixed-layer LCL
- 1297 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 163 m²/s²
- 0-3 km storm-relative helicity
- 196 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 2.5
The text
As transmitted.
031 WUUS51 KBUF 182029 SVRBUF NYC037-073-182100- /O.NEW.KBUF.SV.W.0050.170618T2029Z-170618T2100Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Buffalo NY 429 PM EDT SUN JUN 18 2017 The National Weather Service in Buffalo has issued a * Severe Thunderstorm Warning for... South central Orleans County in western New York... Northern Genesee County in western New York... * Until 500 PM EDT. * At 429 PM EDT, a severe thunderstorm was located near Pembroke, or 9 miles north of Darien Lakes State Park, moving northeast at 40 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect wind damage to trees and power lines. * Locations impacted include... Albion, Pembroke, Byron, Oakfield, Alabama, Corfu, Elba and Barre Center. This includes Interstate 90 near exit 48A. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. Torrential rainfall is occurring with this storm, and may lead to flash flooding. Do not drive your vehicle through flooded roadways. && LAT...LON 4296 7843 4310 7846 4327 7820 4307 7801 TIME...MOT...LOC 2029Z 236DEG 33KT 4305 7838 HAIL...<.75IN WIND...60MPH $$ HITCHCOCK
2 follow-up statements
886 WWUS51 KBUF 182042 SVSBUF Severe Weather Statement National Weather Service Buffalo NY 442 PM EDT SUN JUN 18 2017 NYC037-073-182100- /O.CON.KBUF.SV.W.0050.000000T0000Z-170618T2100Z/ Orleans NY-Genesee NY- 442 PM EDT SUN JUN 18 2017 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 500 PM EDT FOR SOUTH CENTRAL ORLEANS AND NORTHEASTERN GENESEE COUNTIES... At 442 PM EDT, a severe thunderstorm was located near Oakfield, or 7 miles north of Batavia, moving northeast at 35 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect wind damage to trees and power lines. Locations impacted include... Byron, Elba and Barre Center. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. Torrential rainfall is occurring with this storm, and may lead to flash flooding. Do not drive your vehicle through flooded roadways. && LAT...LON 4301 7824 4314 7828 4324 7817 4307 7801 TIME...MOT...LOC 2042Z 243DEG 31KT 4310 7820 HAIL...<.75IN WIND...60MPH $$ HITCHCOCK
927
WWUS51 KBUF 182056
SVSBUF
Severe Weather Statement
National Weather Service Buffalo NY
456 PM EDT SUN JUN 18 2017
NYC037-073-182105-
/O.EXP.KBUF.SV.W.0050.000000T0000Z-170618T2100Z/
Orleans NY-Genesee NY-
456 PM EDT SUN JUN 18 2017
...THE SEVERE THUNDERSTORM WARNING FOR SOUTH CENTRAL ORLEANS AND
NORTHEASTERN GENESEE COUNTIES WILL EXPIRE AT 500 PM EDT...
The storm which prompted the warning has weakened below severe
limits, and no longer pose an immediate threat to life or property.
Therefore the warning will be allowed to expire.
A severe thunderstorm watch remains in effect until 900 PM EDT for
western New York.
Remember, a new Severe Thunderstorm Warning still remains in effect
for portions of eastern Genesee County until 545 PM EDT.
LAT...LON 4301 7824 4314 7828 4324 7817 4307 7801
TIME...MOT...LOC 2055Z 236DEG 33KT 4316 7807
$$
HITCHCOCKThe office that day
Everything else NWS Buffalo, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 17, 10:50 PM EDT | Flash Flood Watch | BUF | Allegany, Cattaraugus, Cayuga, Chautauqua, Erie, Jefferson and 7 more | 22 hr |
| Jun 18, 2:07 PM EDT | Special Weather Statement | BUF | Chautauqua | 38 min |
| Jun 18, 2:14 PM EDT | Special Marine Warning | BUF | 61 min | |
| Jun 18, 2:23 PM EDT | Severe Thunderstorm Warning | BUF | Chautauqua | 37 min |
| Jun 18, 2:24 PM EDT | Special Marine Warning | BUF | 66 min | |
| Jun 18, 2:37 PM EDT | Special Weather Statement | BUF | Wayne | 53 min |
| Jun 18, 2:41 PM EDT | Severe Thunderstorm Warning | BUF | Chautauqua | 49 min |
| Jun 18, 3:04 PM EDT | Special Marine Warning | BUF | 86 min | |
| Jun 18, 3:27 PM EDT | Special Marine Warning | BUF | 63 min | |
| Jun 18, 3:45 PM EDT | Severe Thunderstorm Warning | BUF | Cattaraugus, Chautauqua | 60 min |
| Jun 18, 3:53 PM EDT | Severe Thunderstorm Warning | BUF | Cattaraugus, Erie, Wyoming | 67 min |
| Jun 18, 4:05 PM EDT | Special Weather Statement | BUF | Oswego | 40 min |
| Jun 18, 4:40 PM EDT | Severe Thunderstorm Warning | BUF | Allegany, Cattaraugus | 65 min |
| Jun 18, 4:49 PM EDT | Severe Thunderstorm Warning | BUF | Livingston, Wyoming | 56 min |
| Jun 18, 4:53 PM EDT | Special Weather Statement | BUF | Lewis | 67 min |
| Jun 18, 4:54 PM EDT | Severe Thunderstorm Warning | BUF | Genesee, Livingston, Monroe, Wyoming | 51 min |
| Jun 18, 5:14 PM EDT | Special Weather Statement | BUF | Lewis | 61 min |
| Jun 18, 5:16 PM EDT | Severe Thunderstorm Warning | BUF | Lewis | 59 min |
| Jun 18, 5:19 PM EDT | Severe Thunderstorm Warning | BUF | Livingston, Monroe, Ontario, Wayne | 56 min |
| Jun 18, 5:21 PM EDT | Special Marine Warning | BUF | 54 min | |
| Jun 18, 5:28 PM EDT | Severe Thunderstorm Warning | BUF | Allegany, Livingston, Wyoming | 47 min |
| Jun 18, 5:46 PM EDT | Severe Thunderstorm Warning | BUF | Oswego | 59 min |
| Jun 18, 6:01 PM EDT | Special Marine Warning | BUF | 59 min | |
| Jun 18, 6:11 PM EDT | Severe Thunderstorm Warning | BUF | Ontario, Wayne | 49 min |
| Jun 18, 6:30 PM EDT | Severe Thunderstorm Warning | BUF | Cayuga, Oswego | 45 min |
| Jun 18, 6:41 PM EDT | Severe Thunderstorm Warning | BUF | Chautauqua | 64 min |
| Jun 18, 6:44 PM EDT | Special Marine Warning | BUF | 61 min | |
| Jun 18, 7:02 PM EDT | Special Marine Warning | BUF | 28 min | |
| Jun 18, 7:13 PM EDT | Severe Thunderstorm Warning | BUF | Jefferson, Lewis, Oswego | 62 min |
| Jun 18, 7:36 PM EDT | Severe Thunderstorm Warning | BUF | Cattaraugus, Chautauqua | 54 min |
Nearby
Severe Thunderstorm Warnings in New York, 2017Every severe thunderstorm warning in 2017
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.