Alert archive / New York / Severe Thunderstorm Watches in 2015
Severe Thunderstorm Watch 291
The Storm Prediction Center issued this severe thunderstorm watch at Jun 12, 2015, 2:54 PM EDT for 13 counties in New York; 4 counties in Pennsylvania. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- Jun 12, 2015, 2:54 PM EDT (18:54 UTC)
- Expired
- Jun 12, 2015, 9:05 PM EDT
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 1.5 in
- Strongest gust expected
- 60 kt
Counties Allegany County, NY, Cattaraugus County, NY, Chautauqua County, NY, Erie County, NY, Genesee County, NY, Jefferson County, NY, Lewis County, NY, Monroe County, NY, Niagara County, NY, Orleans County, NY, Oswego County, NY, Wayne County, NY, Wyoming County, NY, McKean County, PA, Potter County, PA, Tioga County, PA, Warren County, PA
The radar
The Buffalo radar (KBUF), 55 km from the middle of the area, began a volume at 18:58 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 SPC expected
The probabilities SPC published with the watch, for the watch area over its life.
- Two or more tornadoes
- 10%
- One or more EF2 to EF5 tornadoes
- 2%
- Ten or more severe wind reports
- 50%
- One or more gusts of 65 knots or more
- 5%
- Ten or more severe hail reports
- 10%
- One or more hailstones of 2 inches or more
- 5%
- Six or more combined severe hail and wind reports
- 80%
Warnings issued inside it
13 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 12, 3:14 PM EDT | Severe Thunderstorm Warning | BUF | Erie, Genesee, Niagara, Wyoming | 61 min |
| Jun 12, 3:20 PM EDT | Severe Thunderstorm Warning | BUF | Erie, Genesee, Niagara, Wyoming | 55 min |
| Jun 12, 3:30 PM EDT | Severe Thunderstorm Warning | BUF | Cattaraugus, Chautauqua | 60 min |
| Jun 12, 4:04 PM EDT | Severe Thunderstorm Warning | BUF | Genesee | 26 min |
| Jun 12, 4:15 PM EDT | Severe Thunderstorm Warning | BUF | Erie, Livingston, Wyoming | 60 min |
| Jun 12, 4:28 PM EDT | Severe Thunderstorm Warning | CTP | McKean, Warren | 92 min |
| Jun 12, 4:40 PM EDT | Severe Thunderstorm Warning | BUF | Genesee, Livingston, Monroe, Ontario | 65 min |
| Jun 12, 4:42 PM EDT | Severe Thunderstorm Warning | BUF | Allegany, Cattaraugus, Livingston | 63 min |
| Jun 12, 5:20 PM EDT | Severe Thunderstorm Warning | BUF | Cayuga, Ontario, Wayne | 32 min |
| Jun 12, 5:36 PM EDT | Severe Thunderstorm Warning | CTP | Cameron, Clearfield, Elk, McKean, Potter | 69 min |
| Jun 12, 5:40 PM EDT | Severe Thunderstorm Warning | BUF | Allegany, Livingston, Ontario | 35 min |
| Jun 12, 6:40 PM EDT | Severe Thunderstorm Warning | CTP | Cameron, Clinton, Lycoming, Potter, Tioga | 80 min |
| Jun 12, 8:01 PM EDT | Severe Thunderstorm Warning | CTP | Columbia, Lycoming, Sullivan, Tioga | 59 min |
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 12, 1:26 PM EDT | Mesoscale Discussion | SPC | Allegany, Cattaraugus, Cayuga, Chautauqua, Cortland, Erie and 17 more | 64 min |
| Jun 12, 3:07 PM EDT | Tornado Watch | SPC | Albany, Broome, Cayuga, Chemung, Chenango, Columbia and 27 more | 8 hr |
| Jun 12, 6:22 PM EDT | Mesoscale Discussion | SPC | Albany, Broome, Cayuga, Chemung, Chenango, Columbia and 29 more | 83 min |
| Jun 12, 7:25 PM EDT | Severe Thunderstorm Watch | SPC | Broome, Chenango, Delaware, Otsego, Sullivan, Tioga | 4 hr |
| Jun 12, 12:52 PM EDT | Mesoscale Discussion | SPC | Beaver, Crawford, Lawrence, Mercer | 113 min |
| Jun 12, 1:14 PM EDT | Severe Thunderstorm Watch | SPC | Allegheny, Armstrong, Beaver, Butler, Cameron, Clarion and 16 more | 8 hr |
| Jun 12, 2:03 PM EDT | Mesoscale Discussion | SPC | Adams, Carbon, Columbia, Cumberland, Dauphin, Franklin and 14 more | 87 min |
| Jun 12, 4:21 PM EDT | Mesoscale Discussion | SPC | Allegheny, Armstrong, Beaver, Butler, Clarion, Clearfield and 7 more | 84 min |
| Jun 12, 6:53 PM EDT | Mesoscale Discussion | SPC | Allegheny, Armstrong, Cambria, Cameron, Centre, Clarion and 13 more | 97 min |
Nearby
Severe Thunderstorm Watches in New York, 2015Severe Thunderstorm Watches in Pennsylvania, 2015Every severe thunderstorm watch in 2015
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.