Alert archive / New York / Severe Thunderstorm Warnings in 2017
Severe Thunderstorm Warning 134, NWS Buffalo, NY
NWS Buffalo, NY issued this severe thunderstorm warning at Oct 15, 2017, 4:57 PM EDT for Allegany County, Cattaraugus County, Chautauqua County, New York. It was in force for 63 min. 2 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
- Oct 15, 2017, 4:57 PM EDT (20:57 UTC)
- Expired
- Oct 15, 2017, 6:00 PM EDT
- In force
- 63 min
- Issued by
- NWS Buffalo, NY
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Allegany County, NY, Cattaraugus County, NY, Chautauqua County, NY
The radar
The Buffalo radar (KBUF), 89 km from the middle of the area, began a volume at 20:56 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 |
|---|---|---|---|
| Oct 15, 5:36 PM EDT | TSTM WND DMG | Allegany, NY | TREES AND WIRES DOWN. |
| Oct 15, 5:42 PM EDT | TSTM WND DMG | Olean, NY | TREES AND WIRES DOWN. |
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, 9.0 hours before the alert went out and 87 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
- 18 J/kg
- Mixed-layer CIN
- -55 J/kg
- Mixed-layer LCL
- 961 m above ground
- 0-6 km bulk shear
- 57 kt
- 0-1 km storm-relative helicity
- 309 m²/s²
- 0-3 km storm-relative helicity
- 376 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
437
WUUS51 KBUF 152057
SVRBUF
NYC003-009-013-152200-
/O.NEW.KBUF.SV.W.0134.171015T2057Z-171015T2200Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Buffalo NY
457 PM EDT SUN OCT 15 2017
The National Weather Service in Buffalo has issued a
* Severe Thunderstorm Warning for...
Cattaraugus County in western New York...
Southeastern Chautauqua County in western New York...
Southern Allegany County in western New York...
* Until 600 PM EDT.
* At 456 PM EDT, severe thunderstorms were located along a line
extending from near Ashford to 10 miles west of Salamanca to near
Frewsburg, moving east at 35 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect wind damage to trees and power lines.
* Locations impacted include...
Olean, Salamanca, Allegany State Park, Ashford, Allegany,
Franklinville, Belfast and Cuba.
This includes Interstate 86 between exits 16 and 33.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4200 7931 4238 7863 4234 7773 4232 7774
4218 7805 4200 7837
TIME...MOT...LOC 2056Z 268DEG 31KT 4237 7861 4217 7893 4201 7921
HAIL...<.75IN
WIND...60MPH
$$
Mitchell3 follow-up statements
301
WWUS51 KBUF 152119
SVSBUF
Severe Weather Statement
National Weather Service Buffalo NY
519 PM EDT SUN OCT 15 2017
NYC013-152128-
/O.CAN.KBUF.SV.W.0134.000000T0000Z-171015T2200Z/
Chautauqua NY-
519 PM EDT SUN OCT 15 2017
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN CHAUTAUQUA COUNTY
IS CANCELLED...
The storms which prompted the warning have moved out of the warned
area. Therefore, the warning has been cancelled.
LAT...LON 4200 7898 4237 7841 4234 7773 4232 7774
4218 7805 4200 7837
TIME...MOT...LOC 2118Z 268DEG 31KT 4238 7836 4218 7868 4202 7896
$$
NYC003-009-152200-
/O.CON.KBUF.SV.W.0134.000000T0000Z-171015T2200Z/
Cattaraugus NY-Allegany NY-
519 PM EDT SUN OCT 15 2017
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 600 PM EDT
FOR SOUTHEASTERN CATTARAUGUS AND SOUTHERN ALLEGANY COUNTIES...
At 518 PM EDT, severe thunderstorms were located along a line
extending from near Rushford to near Salamanca to 8 miles northeast
of Scandia, moving east at 35 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect wind damage to trees and power lines.
Locations impacted include...
Olean, Salamanca, Allegany State Park, Allegany, Franklinville,
Belfast, Cuba and St. Bonaventure.
This includes Interstate 86 near exit 19, and between exits 21 and
33.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4200 7898 4237 7841 4234 7773 4232 7774
4218 7805 4200 7837
TIME...MOT...LOC 2118Z 268DEG 31KT 4238 7836 4218 7868 4202 7896
HAIL...<.75IN
WIND...60MPH
$$
Apffel705
WWUS51 KBUF 152138
SVSBUF
Severe Weather Statement
National Weather Service Buffalo NY
538 PM EDT SUN OCT 15 2017
NYC003-009-152200-
/O.CON.KBUF.SV.W.0134.000000T0000Z-171015T2200Z/
Cattaraugus NY-Allegany NY-
538 PM EDT SUN OCT 15 2017
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 600 PM EDT
FOR SOUTHEASTERN CATTARAUGUS AND SOUTHERN ALLEGANY COUNTIES...
At 537 PM EDT, severe thunderstorms were located along a line
extending from near Belfast to 6 miles north of Olean to near
Bradford, moving east at 45 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect wind damage to trees and power lines.
Locations impacted include...
Olean, Allegany, Cuba, St. Bonaventure, Weston Mills, Hinsdale,
Friendship and Portville.
This includes Interstate 86 between exits 25 and 33.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4200 7861 4234 7819 4234 7773 4232 7774
4218 7805 4200 7837
TIME...MOT...LOC 2137Z 270DEG 37KT 4237 7811 4217 7841 4201 7857
HAIL...<.75IN
WIND...60MPH
$$
Apffel837
WWUS51 KBUF 152154
SVSBUF
Severe Weather Statement
National Weather Service Buffalo NY
554 PM EDT SUN OCT 15 2017
NYC003-009-152203-
/O.EXP.KBUF.SV.W.0134.000000T0000Z-171015T2200Z/
Cattaraugus NY-Allegany NY-
554 PM EDT SUN OCT 15 2017
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN CATTARAUGUS AND
SOUTHERN ALLEGANY COUNTIES WILL EXPIRE AT 600 PM EDT...
The storms which prompted the warning have been replaced by another
warning. Therefore, the warning will be allowed to expire.
LAT...LON 4200 7861 4234 7819 4234 7773 4232 7774
4218 7805 4200 7837
TIME...MOT...LOC 2153Z 268DEG 31KT 4237 7795 4217 7825 4201 7841
$$
ApffelThe office that day
Everything else NWS Buffalo, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 15, 3:09 PM EDT | Special Marine Warning | BUF | 111 min | |
| Oct 15, 3:20 PM EDT | Special Marine Warning | BUF | 85 min | |
| Oct 15, 3:37 PM EDT | Severe Thunderstorm Warning | BUF | Erie, Genesee, Niagara | 23 min |
| Oct 15, 3:56 PM EDT | Severe Thunderstorm Warning | BUF | Cattaraugus, Chautauqua, Erie, Genesee, Monroe, Niagara and 2 more | 49 min |
| Oct 15, 4:36 PM EDT | Special Marine Warning | BUF | 114 min | |
| Oct 15, 4:36 PM EDT | Severe Thunderstorm Warning | BUF | Allegany, Cattaraugus, Genesee, Livingston, Monroe, Ontario and 2 more | 39 min |
| Oct 15, 5:15 PM EDT | Severe Thunderstorm Warning | BUF | Allegany, Cattaraugus, Livingston, Ontario | 45 min |
| Oct 15, 5:16 PM EDT | Severe Thunderstorm Warning | BUF | Cayuga, Ontario, Oswego, Wayne | 44 min |
| Oct 15, 5:56 PM EDT | Severe Thunderstorm Warning | BUF | Jefferson, Lewis, Oswego | 64 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.