Alert archive / New York / Severe Thunderstorm Warnings in 2017
Severe Thunderstorm Warning 104, NWS Buffalo, NY
NWS Buffalo, NY issued this severe thunderstorm warning at Aug 12, 2017, 2:40 PM EDT for Lewis County, Oswego County, New York. It was in force for 65 min. 4 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
- Aug 12, 2017, 2:40 PM EDT (18:40 UTC)
- Expired
- Aug 12, 2017, 3:45 PM EDT
- In force
- 65 min
- Issued by
- NWS Buffalo, NY
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Lewis County, NY, Oswego County, NY
The radar
The Ft Drum radar (KTYX), 58 km from the middle of the area, began a volume at 18:42 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 |
|---|---|---|---|
| Aug 12, 2:42 PM EDT | HAIL 0.88 | 1 Nnw Central Square, NY | DIME TO NICKEL SIZE HAIL |
| Aug 12, 2:56 PM EDT | TSTM WND DMG | 1 Ne Gayville, NY | TREES AND WIRES DOWN - TIME ESTIMATED BY RADAR |
| Aug 12, 2:58 PM EDT | HAIL 0.88 | 1 Ene Amboy Center, NY | DIME TO NICKEL SIZE HAIL |
| Aug 12, 3:05 PM EDT | HAIL 1 | 4 S Williamstown, NY | NICKEL TO QUARTER SIZE HAIL 3 TO 4 INCHES DEEP COVERING THE GROUND |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Albany, NY (KALY), launched 12:00Z, 6.7 hours before the alert went out and 189 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
- 609 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 113 m²/s²
- 0-3 km storm-relative helicity
- 145 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
850
WUUS51 KBUF 121840
SVRBUF
NYC049-075-121945-
/O.NEW.KBUF.SV.W.0104.170812T1840Z-170812T1945Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Buffalo NY
240 PM EDT SAT AUG 12 2017
The National Weather Service in Buffalo has issued a
* Severe Thunderstorm Warning for...
Southwestern Lewis County in central New York...
Southeastern Oswego County in central New York...
* Until 345 PM EDT.
* At 240 PM EDT, severe thunderstorms were located along a line
extending from 8 miles southeast of Mexico Point State Park to near
Central Square, moving east at 30 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Minor damage to vehicles is possible. Expect wind damage
to trees and power lines.
* Locations impacted include...
Central Square, Redfield, Highmarket, Hastings, Constantia, West
Monroe, Phoenix and Williamstown.
This includes Interstate 81 between exits 32 and 35.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4342 7554 4348 7581 4333 7589 4332 7586
4315 7588 4317 7593 4318 7600 4320 7604
4320 7608 4323 7610 4324 7616 4327 7620
4324 7621 4322 7619 4320 7621 4324 7626
4320 7627 4323 7633 4350 7617 4362 7545
TIME...MOT...LOC 1840Z 262DEG 24KT 4343 7614 4327 7625
HAIL...1.00IN
WIND...60MPH
$$
Church3 follow-up statements
284
WWUS51 KBUF 121859
SVSBUF
Severe Weather Statement
National Weather Service Buffalo NY
259 PM EDT SAT AUG 12 2017
NYC049-075-121945-
/O.CON.KBUF.SV.W.0104.000000T0000Z-170812T1945Z/
Lewis NY-Oswego NY-
259 PM EDT SAT AUG 12 2017
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 345 PM EDT
FOR SOUTHWESTERN LEWIS AND SOUTHEASTERN OSWEGO COUNTIES...
At 258 PM EDT, severe thunderstorms were located along a line
extending from 10 miles southwest of Redfield to near Central Square,
moving east at 30 mph.
HAZARD...60 mph wind gusts and half dollar size hail.
SOURCE...Radar indicated.
IMPACT...Minor damage to vehicles is possible. Expect wind damage to
trees and power lines.
Locations impacted include...
Redfield, Highmarket, Constantia, West Monroe, Williamstown,
Cleveland, Altmar and Osceola.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4342 7554 4348 7581 4333 7589 4332 7586
4323 7587 4327 7612 4353 7598 4362 7545
TIME...MOT...LOC 1858Z 262DEG 24KT 4345 7599 4329 7610
HAIL...1.25IN
WIND...60MPH
$$
Church142
WWUS51 KBUF 121919
SVSBUF
Severe Weather Statement
National Weather Service Buffalo NY
319 PM EDT SAT AUG 12 2017
NYC075-121929-
/O.CAN.KBUF.SV.W.0104.000000T0000Z-170812T1945Z/
Oswego NY-
319 PM EDT SAT AUG 12 2017
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN OSWEGO 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
central New York.
LAT...LON 4342 7554 4344 7563 4345 7565 4346 7570
4347 7576 4353 7576 4354 7549
TIME...MOT...LOC 1919Z 260DEG 32KT 4349 7568 4333 7579
$$
NYC049-121945-
/O.CON.KBUF.SV.W.0104.000000T0000Z-170812T1945Z/
Lewis NY-
319 PM EDT SAT AUG 12 2017
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 345 PM EDT
FOR SOUTHWESTERN LEWIS COUNTY...
At 319 PM EDT, severe thunderstorms were located along a line
extending from 7 miles southeast of Redfield to near Camden, moving
east at 35 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Minor damage to vehicles is possible. Expect wind damage to
trees and power lines.
Locations impacted include...
Osceola and Swancott Mill.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4342 7554 4344 7563 4345 7565 4346 7570
4347 7576 4353 7576 4354 7549
TIME...MOT...LOC 1919Z 260DEG 32KT 4349 7568 4333 7579
HAIL...1.00IN
WIND...60MPH
$$
Church146
WWUS51 KBUF 121942
SVSBUF
Severe Weather Statement
National Weather Service Buffalo NY
342 PM EDT SAT AUG 12 2017
NYC049-121952-
/O.EXP.KBUF.SV.W.0104.000000T0000Z-170812T1945Z/
Lewis NY-
342 PM EDT SAT AUG 12 2017
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN LEWIS COUNTY WILL
EXPIRE AT 345 PM EDT...
The storms which prompted the warning have moved out of the area.
Therefore the warning will be allowed to expire.
A severe thunderstorm watch remains in effect until 900 PM EDT for
central New York.
Remember, a Severe Thunderstorm Warning still remains in effect for
southeastern Lewis County.
LAT...LON 4342 7554 4344 7563 4345 7565 4346 7570
4347 7576 4353 7576 4354 7549
TIME...MOT...LOC 1942Z 262DEG 24KT 4351 7550 4335 7561
$$
ChurchThe office that day
Everything else NWS Buffalo, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 11, 11:39 PM EDT | Special Marine Warning | BUF | 96 min | |
| Aug 12, 12:20 AM EDT | Special Weather Statement | BUF | Jefferson | 55 min |
| Aug 12, 4:38 AM EDT | Beach Hazards Statement | BUF | Chautauqua, Erie | 18 hr |
| Aug 12, 4:39 AM EDT | Small Craft Advisory | BUF | 18 hr | |
| Aug 12, 1:19 PM EDT | Special Marine Warning | BUF | 56 min | |
| Aug 12, 1:21 PM EDT | Special Weather Statement | BUF | Ontario | 24 min |
| Aug 12, 1:42 PM EDT | Special Weather Statement | BUF | Oswego | 48 min |
| Aug 12, 1:45 PM EDT | Severe Thunderstorm Warning | BUF | Cayuga, Oswego, Wayne | 60 min |
| Aug 12, 3:23 PM EDT | Severe Thunderstorm Warning | BUF | Lewis | 24 min |
| Aug 12, 3:38 PM EDT | Special Weather Statement | BUF | Niagara | 37 min |
| Aug 12, 5:10 PM EDT | Special Weather Statement | BUF | Niagara, Orleans | 50 min |
| Aug 12, 6:29 PM EDT | Special Marine Warning | BUF | 31 min | |
| Aug 12, 6:57 PM EDT | Special Marine Warning | BUF | 63 min | |
| Aug 12, 7:02 PM EDT | Special Weather Statement | BUF | Erie | 28 min |
| Aug 12, 7:32 PM EDT | Special Weather Statement | BUF | Wyoming | 28 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.