Alert archive / New York / Tornado Warnings in 2017
Tornado Warning 1, NWS Buffalo, NY
NWS Buffalo, NY issued this tornado warning at Jul 20, 2017, 12:36 PM EDT for Cattaraugus County, Erie County, Wyoming County, New York. It was in force for 24 min. 10 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
- Jul 20, 2017, 12:36 PM EDT (16:36 UTC)
- Expired
- Jul 20, 2017, 1:00 PM EDT
- In force
- 24 min
- Issued by
- NWS Buffalo, NY
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.75 in
Counties Cattaraugus County, NY, Erie County, NY, Wyoming County, NY
The radar
The Buffalo radar (KBUF), 32 km from the middle of the area, began a volume at 16:37 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 |
|---|---|---|---|
| Jul 20, 12:39 PM EDT | TSTM WND DMG | 3 Wnw West Falls, NY | PHOTOS OF EXTENSIVE TREE DAMAGE AT CHESTNUT RIDGE PARK VIA COUNTY EXEC. TREES SNAPPED/BLOWN OVER. |
| Jul 20, 12:39 PM EDT | TORNADO | 4 E Hamburg, NY | STORM SURVEY CONFIRMED EF2 TORNADO. DAMAGE TO THE HAMBURG FAIRGROUNDS AND CHESTNUT RIDGE PARK. NO DIRECT INJURIES. |
| Jul 20, 12:40 PM EDT | TSTM WND DMG | 2 Nw West Falls, NY | TREES DOWN ON GARTMAN RD BETWEEN 277 AND SCHERFF |
| Jul 20, 12:42 PM EDT | TSTM WND DMG | 1 Wnw West Falls, NY | TREE AND WIRES DOWN ON BEHM RD BETWEEN COLE RD AND RTE. 240. |
| Jul 20, 12:52 PM EDT | TSTM WND DMG | 2 Nnw Holland, NY | RTE 16 CLOSED BETWEEN PARTRIDGE AND BLANCHARD RD. DUE TO DEBRIS IN ROAD. |
| Jul 20, 12:53 PM EDT | TSTM WND DMG | 3 S South Wales, NY | TREES DOWN AND LARGE PARTY TENT DESTROYED. |
| Jul 20, 12:53 PM EDT | TSTM WND DMG | Holland, NY | PHOTOS OF TREES ON POWERLINES IN HOLLAND BY ERIE COUNTY SHERIFF. TIME ESTIMATED BY RADAR. |
| Jul 20, 12:56 PM EDT | TSTM WND DMG | 2 Ene Holland, NY | TREES DOWN AT VERMONT ST. AND VERMONT HILL RD. |
| Jul 20, 12:56 PM EDT | TORNADO | 1 Nnw Holland, NY | STORM SURVEY CONFIRMED EF1 TORNADO. SEVERAL STRUCTURES DAMAGED AND A SIGNIFICANT AMOUNT OF TREE DAMAGE. TRACKS OF THE NORFOLK SOUTHERN RAILWAY WERE BLOCKED BY LARGE TREES IN SEVERAL LOCATIONS. NO DIRECT INJURIES. |
| Jul 20, 1:01 PM EDT | TSTM WND DMG | 3 Se Holland, NY | TREES DOWN ON S. PROTECTION RD NEAR VERMONT HILL. |
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, 4.6 hours before the alert went out and 29 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
- 2004 m above ground
- 0-6 km bulk shear
- 52 kt
- 0-1 km storm-relative helicity
- 122 m²/s²
- 0-3 km storm-relative helicity
- 131 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
161
WFUS51 KBUF 201636
TORBUF
NYC009-029-121-201700-
/O.NEW.KBUF.TO.W.0001.170720T1636Z-170720T1700Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Buffalo NY
1236 PM EDT THU JUL 20 2017
The National Weather Service in Buffalo has issued a
* Tornado Warning for...
Southwestern Wyoming County in western New York...
Northeastern Cattaraugus County in western New York...
Southeastern Erie County in western New York...
* Until 100 PM EDT.
* At 1236 PM EDT, a severe thunderstorm capable of producing a
tornado was located over Hamburg, moving east at 40 mph.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed.
Damage to roofs, windows, and vehicles will occur. Tree
damage is likely.
* Locations impacted include...
West Seneca, Lackawanna, Hamburg, East Aurora, Boston, Eden, Colden
and Orchard Park.
This includes Interstate 90 between exits 57 and 56.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 4266 7891 4283 7883 4272 7824 4247 7837
TIME...MOT...LOC 1636Z 289DEG 33KT 4273 7878
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$
Mitchell2 follow-up statements
150
WWUS51 KBUF 201646
SVSBUF
Severe Weather Statement
National Weather Service Buffalo NY
1246 PM EDT THU JUL 20 2017
NYC009-029-121-201700-
/O.CON.KBUF.TO.W.0001.000000T0000Z-170720T1700Z/
Wyoming NY-Cattaraugus NY-Erie NY-
1246 PM EDT THU JUL 20 2017
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 100 PM EDT FOR
SOUTHWESTERN WYOMING...NORTHEASTERN CATTARAUGUS AND SOUTHEASTERN ERIE
COUNTIES...
At 1245 PM EDT, a severe thunderstorm capable of producing a tornado
was located near Colden, or near East Aurora, moving east at 40 mph.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
Locations impacted include...
East Aurora, Boston, Colden, Arcade, Wales Center, Chaffee,
Billington Heights and Yorkshire.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 4264 7877 4280 7865 4272 7824 4247 7837
TIME...MOT...LOC 1645Z 289DEG 33KT 4270 7866
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$
Mitchell295
WWUS51 KBUF 201657
SVSBUF
Severe Weather Statement
National Weather Service Buffalo NY
1257 PM EDT THU JUL 20 2017
NYC009-029-121-201705-
/O.EXP.KBUF.TO.W.0001.000000T0000Z-170720T1700Z/
Wyoming NY-Cattaraugus NY-Erie NY-
1257 PM EDT THU JUL 20 2017
...THE TORNADO WARNING FOR SOUTHWESTERN WYOMING...NORTHEASTERN
CATTARAUGUS AND SOUTHEASTERN ERIE COUNTIES WILL EXPIRE AT 100 PM
EDT...
The Tornado Warning that was previously in effect has been reissued
for Wyoming...Cattaraugus...Erie...and Allegany counties and is in
effect until 130 PM. Please refer to that bulletin for the latest
severe weather information.
LAT...LON 4264 7877 4280 7865 4272 7824 4247 7837
TIME...MOT...LOC 1655Z 289DEG 33KT 4268 7857
$$
ApffelThe office that day
Everything else NWS Buffalo, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 20, 11:44 AM EDT | Special Marine Warning | BUF | 31 min | |
| Jul 20, 11:47 AM EDT | Special Weather Statement | BUF | Genesee, Monroe, Niagara, Orleans, Wyoming | 58 min |
| Jul 20, 12:11 PM EDT | Special Marine Warning | BUF | 34 min | |
| Jul 20, 12:21 PM EDT | Severe Thunderstorm Warning | BUF | Erie, Genesee, Livingston, Monroe, Niagara, Ontario and 2 more | 54 min |
| Jul 20, 12:31 PM EDT | Severe Thunderstorm Warning | BUF | Allegany, Cattaraugus, Erie, Genesee, Livingston, Niagara and 1 more | 59 min |
| Jul 20, 12:55 PM EDT | Tornado Warning | BUF | Allegany, Cattaraugus, Erie, Wyoming | 35 min |
| Jul 20, 1:23 PM EDT | Severe Thunderstorm Warning | BUF | Allegany, Cattaraugus, Wyoming | 52 min |
| Jul 20, 1:35 PM EDT | Tornado Warning | BUF | Allegany | 40 min |
| Jul 20, 1:44 PM EDT | Special Weather Statement | BUF | Erie | 31 min |
| Jul 20, 2:07 PM EDT | Severe Thunderstorm Warning | BUF | Allegany, Cattaraugus, Erie, Wyoming | 38 min |
| Jul 20, 2:46 PM EDT | Severe Thunderstorm Warning | BUF | Allegany | 59 min |
Nearby
Tornado Warnings in New York, 2017Every tornado warning in 2017Tornadoes 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.