Alert archive / New York / Severe Thunderstorm Warnings in 2017
Severe Thunderstorm Warning 56, NWS Buffalo, NY
NWS Buffalo, NY issued this severe thunderstorm warning at Jun 18, 2017, 5:28 PM EDT for Allegany County, Livingston County, Wyoming County, New York. It was in force for 47 min. 1 report 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
- Jun 18, 2017, 5:28 PM EDT (21:28 UTC)
- Expired
- Jun 18, 2017, 6:15 PM EDT
- In force
- 47 min
- Issued by
- NWS Buffalo, NY
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Allegany County, NY, Livingston County, NY, Wyoming County, NY
The radar
The Buffalo radar (KBUF), 89 km from the middle of the area, began a volume at 21:30 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 |
|---|---|---|---|
| Jun 18, 5:30 PM EDT | TSTM WND DMG | 2 Wnw Fillmore, NY | TREES DOWN. |
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 |
|---|---|---|---|
| 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, 9.5 hours before the alert went out and 86 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.
525
WUUS51 KBUF 182128
SVRBUF
NYC003-051-121-182215-
/O.NEW.KBUF.SV.W.0056.170618T2128Z-170618T2215Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Buffalo NY
528 PM EDT SUN JUN 18 2017
The National Weather Service in Buffalo has issued a
* Severe Thunderstorm Warning for...
Southeastern Wyoming County in western New York...
Southwestern Livingston County in western New York...
Allegany County in western New York...
* Until 615 PM EDT.
* At 528 PM EDT, severe thunderstorms were located along a line
extending from 6 miles northwest of Houghton to 6 miles northeast
of Belfast to near Shinglehouse, moving northeast at 55 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect wind damage to trees and power lines.
* Locations impacted include...
Dansville, Wellsville, Letchworth State Park, Alfred, Perry,
Houghton, Whitesville and Portageville.
This includes the following highways...
Interstate 390 between exits 4 and 5.
Interstate 86 between exits 30 and 33.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4200 7816 4235 7809 4246 7831 4252 7831
4272 7801 4258 7766 4254 7766 4253 7772
4200 7775
TIME...MOT...LOC 2128Z 227DEG 50KT 4250 7822 4241 7803 4203 7813
HAIL...<.75IN
WIND...60MPH
$$
HITCHCOCK2 follow-up statements
968
WWUS51 KBUF 182149
SVSBUF
Severe Weather Statement
National Weather Service Buffalo NY
549 PM EDT SUN JUN 18 2017
NYC121-182159-
/O.CAN.KBUF.SV.W.0056.000000T0000Z-170618T2215Z/
Wyoming NY-
549 PM EDT SUN JUN 18 2017
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN WYOMING COUNTY IS
CANCELLED...
The storms which prompted the warning have moved out of the warned
area. Therefore, the warning has been cancelled.
A severe thunderstorm watch remains in effect until 900 PM EDT for
western New York.
LAT...LON 4200 7808 4241 7791 4264 7782 4258 7766
4254 7766 4253 7772 4200 7775
TIME...MOT...LOC 2149Z 239DEG 41KT 4255 7780 4235 7774 4205 7799
$$
NYC003-051-182215-
/O.CON.KBUF.SV.W.0056.000000T0000Z-170618T2215Z/
Livingston NY-Allegany NY-
549 PM EDT SUN JUN 18 2017
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 PM EDT
FOR SOUTH CENTRAL LIVINGSTON AND EASTERN ALLEGANY COUNTIES...
At 549 PM EDT, severe thunderstorms were located along a line
extending from near Dansville to near Arkport to near Wellsville,
moving northeast at 50 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect wind damage to trees and power lines.
Locations impacted include...
Dansville, Wellsville, Alfred, Whitesville, Scio, Andover, Alma and
Ossian.
This includes the following highways...
Interstate 390 between exits 4 and 5.
Interstate 86 between exits 32 and 33.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4200 7808 4241 7791 4264 7782 4258 7766
4254 7766 4253 7772 4200 7775
TIME...MOT...LOC 2149Z 239DEG 41KT 4255 7780 4235 7774 4205 7799
HAIL...<.75IN
WIND...60MPH
$$
HITCHCOCK606
WWUS51 KBUF 182211
SVSBUF
Severe Weather Statement
National Weather Service Buffalo NY
611 PM EDT SUN JUN 18 2017
NYC003-051-182221-
/O.EXP.KBUF.SV.W.0056.000000T0000Z-170618T2215Z/
Livingston NY-Allegany NY-
611 PM EDT SUN JUN 18 2017
...THE SEVERE THUNDERSTORM WARNING FOR SOUTH CENTRAL LIVINGSTON AND
EASTERN ALLEGANY COUNTIES WILL EXPIRE AT 615 PM EDT...
The storms which prompted the warning have weakened below severe
limits, and have exited the warned area. Therefore the warning will
be allowed to expire.
A severe thunderstorm watch remains in effect until 900 PM EDT for
western New York.
LAT...LON 4200 7808 4241 7791 4264 7782 4258 7766
4254 7766 4253 7772 4200 7775
TIME...MOT...LOC 2211Z 227DEG 50KT 4276 7749 4256 7744 4226 7769
$$
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, 4:29 PM EDT | Severe Thunderstorm Warning | BUF | Genesee, Orleans | 31 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, 5:46 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.