Alert archive / New York / Severe Thunderstorm Warnings in 2017
Severe Thunderstorm Warning 6, NWS Buffalo, NY
NWS Buffalo, NY issued this severe thunderstorm warning at May 1, 2017, 3:06 PM EDT for Cattaraugus County, Chautauqua County, Erie County, New York. It was in force for 54 min. 7 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
- May 1, 2017, 3:06 PM EDT (19:06 UTC)
- Expired
- May 1, 2017, 4:00 PM EDT
- In force
- 54 min
- Issued by
- NWS Buffalo, NY
- Area
- Storm-based polygon
- Tornado
- Possible
- Hail
- 0.75 in
- Wind
- 70.0 mph
Counties Cattaraugus County, NY, Chautauqua County, NY, Erie County, NY
The radar
The Buffalo radar (KBUF), 71 km from the middle of the area, began a volume at 19:08 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 |
|---|---|---|---|
| May 1, 3:06 PM EDT | TSTM WND DMG | 1 Nw Bemus Point, NY | TREE DOWN ON LAKESIDE DRIVE. |
| May 1, 3:13 PM EDT | TSTM WND DMG | Ellery Center, NY | TREES AND WIRES DOWN. |
| May 1, 3:18 PM EDT | TSTM WND GST 78 | 3 Ssw Sinclairville, NY | |
| May 1, 3:20 PM EDT | TSTM WND DMG | Versailles, NY | TREES AND LINES DOWN |
| May 1, 3:29 PM EDT | TSTM WND DMG | Collins, NY | TREES DOWN. |
| May 1, 3:36 PM EDT | TSTM WND DMG | 2 Sw Perrysburg, NY | TREES AND LINES DOWN |
| May 1, 4:04 PM EDT | TSTM WND GST 78 | 3 Ssw Sinclairville, NY |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| May 1, 2:12 PM EDT | Tornado Watch | SPC | 8 hr |
The nearest sounding before it
Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 7.1 hours before the alert went out and 71 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1242 m above ground
- 0-6 km bulk shear
- 48 kt
- 0-1 km storm-relative helicity
- 306 m²/s²
- 0-3 km storm-relative helicity
- 318 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
592
WUUS51 KBUF 011906
SVRBUF
NYC009-013-029-012000-
/O.NEW.KBUF.SV.W.0006.170501T1906Z-170501T2000Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Buffalo NY
306 PM EDT MON MAY 1 2017
The National Weather Service in Buffalo has issued a
* Severe Thunderstorm Warning for...
Western Cattaraugus County in western New York...
Southern Erie County in western New York...
Chautauqua County in western New York...
* Until 400 PM EDT.
* At 306 PM EDT, severe thunderstorms were located along a line
extending from near Lake Erie State Park to near Lottsville, moving
northeast at 75 mph.
HAZARD...70 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect considerable tree damage. Damage is likely to
mobile homes, roofs, and outbuildings.
* Locations impacted include...
Jamestown, Dunkirk, Fredonia, Hamburg, East Aurora, Salamanca,
Allegany State Park and Evans.
This includes the following highways...
Interstate 90 between exits 59 and 57A.
Interstate 86 between exits 8 and 21.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
These are potentially deadly storms. Seek shelter in an interior room
on the lowest floor of a well-built structure. Abandon vehicles in
search of a more substantial permanent structure. Stay away from
windows.
Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
A tornado watch remains in effect until 1000 PM EDT for western New
York.
LAT...LON 4200 7940 4246 7948 4248 7947 4253 7939
4260 7919 4270 7910 4279 7849 4200 7871
TIME...MOT...LOC 1906Z 223DEG 65KT 4238 7950 4196 7945
TORNADO...POSSIBLE
HAIL...<.75IN
WIND...70MPH
$$
Hitchcock2 follow-up statements
079
WWUS51 KBUF 011932
SVSBUF
Severe Weather Statement
National Weather Service Buffalo NY
332 PM EDT MON MAY 1 2017
NYC009-013-029-012000-
/O.CON.KBUF.SV.W.0006.000000T0000Z-170501T2000Z/
Cattaraugus NY-Erie NY-Chautauqua NY-
332 PM EDT MON MAY 1 2017
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 PM EDT
FOR WESTERN CATTARAUGUS...SOUTHERN ERIE AND EASTERN CHAUTAUQUA
COUNTIES...
At 330 PM EDT, severe thunderstorms were located along a line
extending from near Dunkirk to Jamestown, moving northeast at 60 mph.
HAZARD...70 mph wind gusts.
SOURCE...Law enforcement reported numerous downed trees and
powerlines across Chautuauqua County.
IMPACT...Expect considerable tree damage. Damage is likely to mobile
homes, roofs, and outbuildings.
Locations impacted include...
Jamestown, Dunkirk, Fredonia, Hamburg, East Aurora, Salamanca,
Allegany State Park and Evans.
This includes the following highways...
Interstate 90 between exits 59 and 57A.
Interstate 86 between exits 11 and 21.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
These are potentially deadly storms. Seek shelter in an interior room
on the lowest floor of a well-built structure. Abandon vehicles in
search of a more substantial permanent structure. Stay away from
windows.
Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
A tornado watch remains in effect until 1000 PM EDT for western New
York.
LAT...LON 4200 7936 4253 7939 4260 7919 4270 7910
4279 7849 4200 7871
TIME...MOT...LOC 1930Z 223DEG 65KT 4268 7912 4226 7907
TORNADO...POSSIBLE
HAIL...<.75IN
WIND...70MPH
$$
Church439
WWUS51 KBUF 012002
SVSBUF
Severe Weather Statement
National Weather Service Buffalo NY
402 PM EDT MON MAY 1 2017
NYC009-013-029-012011-
/O.EXP.KBUF.SV.W.0006.000000T0000Z-170501T2000Z/
Cattaraugus NY-Erie NY-Chautauqua NY-
402 PM EDT MON MAY 1 2017
...THE SEVERE THUNDERSTORM WARNING FOR WESTERN CATTARAUGUS...SOUTHERN
ERIE AND EASTERN CHAUTAUQUA COUNTIES HAS EXPIRED...
The storms which prompted the warning have moved out of the area.
Therefore the warning has been allowed to expire.
Remember, a Severe Thunderstorm Warning still remains in effect for
eastern Cattaraugus and eastern Erie county.
A tornado watch remains in effect until 1000 PM EDT for western New
York.
LAT...LON 4200 7936 4253 7939 4260 7919 4270 7910
4279 7849 4200 7871
TIME...MOT...LOC 2001Z 223DEG 65KT 4306 7863 4264 7859
$$
ChurchThe office that day
Everything else NWS Buffalo, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 30, 8:20 PM EDT | Special Weather Statement | BUF | Ontario | 40 min |
| Apr 30, 9:57 PM EDT | Special Weather Statement | BUF | Niagara | 48 min |
| Apr 30, 10:09 PM EDT | Special Marine Warning | BUF | 81 min | |
| Apr 30, 10:34 PM EDT | Severe Thunderstorm Warning | BUF | Erie, Niagara | 41 min |
| May 1, 3:45 AM EDT | Lakeshore Flood Warning | BUF | Cayuga, Jefferson, Oswego, Wayne | 60 hr |
| May 1, 6:16 AM EDT | Flood Watch | BUF | Allegany, Cattaraugus, Cayuga, Chautauqua, Erie, Genesee and 10 more | 13 hr |
| May 1, 2:10 PM EDT | Special Marine Warning | BUF | 95 min | |
| May 1, 2:20 PM EDT | Severe Thunderstorm Warning | BUF | Chautauqua | 55 min |
| May 1, 2:40 PM EDT | Special Marine Warning | BUF | 65 min | |
| May 1, 2:41 PM EDT | Special Marine Warning | BUF | 64 min | |
| May 1, 3:00 PM EDT | Severe Thunderstorm Warning | BUF | Erie, Niagara | 60 min |
| May 1, 3:26 PM EDT | Special Marine Warning | BUF | 94 min | |
| May 1, 3:47 PM EDT | Severe Thunderstorm Warning | BUF | Erie, Genesee, Niagara, Orleans, Wyoming | 58 min |
| May 1, 3:50 PM EDT | Severe Thunderstorm Warning | BUF | Allegany, Cattaraugus | 55 min |
| May 1, 4:16 PM EDT | Severe Thunderstorm Warning | BUF | Genesee, Livingston, Monroe, Orleans, Wyoming | 14 min |
| May 1, 4:24 PM EDT | Severe Thunderstorm Warning | BUF | Genesee, Livingston, Monroe, Orleans, Wyoming | 51 min |
| May 1, 4:28 PM EDT | Severe Thunderstorm Warning | BUF | Allegany, Livingston | 62 min |
| May 1, 4:45 PM EDT | Areal Flood Warning | BUF | Allegany, Cattaraugus, Chautauqua, Erie, Genesee, Livingston and 5 more | 3 hr |
| May 1, 4:49 PM EDT | Special Marine Warning | BUF | 116 min | |
| May 1, 4:52 PM EDT | Severe Thunderstorm Warning | BUF | Livingston, Monroe, Ontario, Wayne | 53 min |
| May 1, 5:18 PM EDT | Small Craft Advisory | BUF | 47 hr | |
| May 1, 5:36 PM EDT | Severe Thunderstorm Warning | BUF | Jefferson, Oswego | 54 min |
| May 1, 5:38 PM EDT | Special Marine Warning | BUF | 97 min | |
| May 1, 5:46 PM EDT | Severe Thunderstorm Warning | BUF | Cayuga, Ontario, Wayne | 59 min |
| May 1, 6:09 PM EDT | Severe Thunderstorm Warning | BUF | Jefferson, Lewis, Oswego | 66 min |
| May 1, 6:45 PM EDT | Special Marine Warning | BUF | 60 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.