Alert archive / New York / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 59, NWS Buffalo, NY
NWS Buffalo, NY issued this severe thunderstorm warning at Jul 8, 2021, 5:12 PM EDT for Jefferson County, Lewis County, Oswego 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
- Jul 8, 2021, 5:12 PM EDT (21:12 UTC)
- Expired
- Jul 8, 2021, 6:15 PM EDT
- In force
- 63 min
- Issued by
- NWS Buffalo, NY
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Jefferson County, NY, Lewis County, NY, Oswego County, NY
The radar
The Ft Drum radar (KTYX), 33 km from the middle of the area, began a volume at 21:11 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 8, 5:27 PM EDT | TSTM WND DMG | 1 E Sackets Harbor, NY | SEVERAL TREES AND WIRES DOWN REPORTED IN THE TOWN OF HOUNSFIELD. |
| Jul 8, 5:38 PM EDT | TSTM WND DMG | Dexter, NY | SEVERAL TREES DOWN AND DAMAGE TO CAMPER TENTS AT BLACK RIVER BAY CAMPGROUND. |
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, 9.2 hours before the alert went out and 220 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
- 578 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 56 m²/s²
- 0-3 km storm-relative helicity
- 126 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
258
WUUS51 KBUF 082112
SVRBUF
NYC045-049-075-082215-
/O.NEW.KBUF.SV.W.0059.210708T2112Z-210708T2215Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Buffalo NY
512 PM EDT Thu Jul 8 2021
The National Weather Service in Buffalo has issued a
* Severe Thunderstorm Warning for...
Southern Jefferson County in central New York...
Southern Lewis County in central New York...
Northeastern Oswego County in central New York...
* Until 615 PM EDT..
* At 511 PM EDT, a severe thunderstorm was located 8 miles east of
Sandy Island Beach State Park, moving northeast at 35 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Watertown, Fort Drum, Stony Point, Lowville, West Carthage, Adams,
Dexter, Redfield, Glen Park and Highmarket.
This includes Interstate 81 between exits 37 and 48.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4344 7564 4348 7581 4348 7582 4377 7629
4383 7636 4387 7635 4385 7641 4391 7650
4396 7644 4396 7634 4403 7636 4424 7604
4374 7523
TIME...MOT...LOC 2111Z 219DEG 31KT 4367 7604
HAIL...<.75IN
WIND...60MPH
$$
HSK3 follow-up statements
383
WWUS51 KBUF 082137
SVSBUF
Severe Weather Statement
National Weather Service Buffalo NY
537 PM EDT Thu Jul 8 2021
NYC045-049-075-082215-
/O.CON.KBUF.SV.W.0059.000000T0000Z-210708T2215Z/
Jefferson NY-Lewis NY-Oswego NY-
537 PM EDT Thu Jul 8 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 PM EDT
FOR SOUTHERN JEFFERSON...SOUTHERN LEWIS AND NORTHEASTERN OSWEGO
COUNTIES...
At 536 PM EDT, a severe thunderstorm was located over Adams Center,
or 11 miles southwest of Watertown, moving northeast at 40 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Watertown, Fort Drum, Lowville, West Carthage, Adams, Dexter,
Redfield, Glen Park, Highmarket and Adams Center.
This includes Interstate 81 between exits 37 and 48.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4344 7564 4348 7581 4348 7582 4377 7629
4379 7630 4413 7620 4424 7604 4374 7523
TIME...MOT...LOC 2136Z 233DEG 36KT 4384 7603
HAIL...<.75IN
WIND...60MPH
$$
HSK341
WWUS51 KBUF 082141
SVSBUF
Severe Weather Statement
National Weather Service Buffalo NY
541 PM EDT Thu Jul 8 2021
NYC045-049-075-082215-
/O.CON.KBUF.SV.W.0059.000000T0000Z-210708T2215Z/
Jefferson NY-Lewis NY-Oswego NY-
541 PM EDT Thu Jul 8 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 PM EDT
FOR SOUTHERN JEFFERSON...WEST CENTRAL LEWIS AND NORTHEASTERN OSWEGO
COUNTIES...
At 541 PM EDT, a severe thunderstorm was located over Adams Center,
or 7 miles southwest of Watertown, moving northeast at 35 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Watertown, Fort Drum, Lowville, West Carthage, Adams, Dexter, Glen
Park, Adams Center, Henderson Harbor and Barnes Corners.
This includes Interstate 81 between exits 37 and 48.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4383 7538 4354 7592 4377 7629 4412 7614
4424 7604
TIME...MOT...LOC 2141Z 219DEG 31KT 4388 7599
HAIL...<.75IN
WIND...60MPH
$$
HSK860
WWUS51 KBUF 082152
SVSBUF
Severe Weather Statement
National Weather Service Buffalo NY
552 PM EDT Thu Jul 8 2021
NYC045-049-075-082215-
/O.CON.KBUF.SV.W.0059.000000T0000Z-210708T2215Z/
Jefferson NY-Lewis NY-Oswego NY-
552 PM EDT Thu Jul 8 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 PM EDT
FOR SOUTHEASTERN JEFFERSON...WEST CENTRAL LEWIS AND NORTHEASTERN
OSWEGO COUNTIES...
At 552 PM EDT, a severe thunderstorm was located near Adams, or 13
miles south of Watertown, moving northeast at 25 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Watertown, Fort Drum, Lowville, West Carthage, Adams, Dexter, Glen
Park, Adams Center, Barnes Corners and Denmark.
This includes Interstate 81 between exits 37 and 48.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4421 7599 4383 7538 4354 7592 4364 7608
4368 7615
TIME...MOT...LOC 2152Z 234DEG 24KT 4377 7593
HAIL...<.75IN
WIND...60MPH
$$
HSKThe office that day
Everything else NWS Buffalo, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 7, 8:04 PM EDT | Special Weather Statement | BUF | Allegany, Cattaraugus, Chautauqua | 56 min |
| Jul 7, 8:39 PM EDT | Flash Flood Warning | BUF | Allegany | 3 hr |
| Jul 8, 12:48 PM EDT | Special Weather Statement | BUF | Niagara | 27 min |
| Jul 8, 1:40 PM EDT | Special Weather Statement | BUF | Niagara | 35 min |
| Jul 8, 2:18 PM EDT | Special Weather Statement | BUF | Orleans | 42 min |
| Jul 8, 3:08 PM EDT | Special Weather Statement | BUF | Niagara | 67 min |
| Jul 8, 3:23 PM EDT | Special Marine Warning | BUF | 37 min | |
| Jul 8, 3:34 PM EDT | Special Weather Statement | BUF | Erie | 41 min |
| Jul 8, 3:41 PM EDT | Severe Thunderstorm Warning | BUF | Erie, Niagara | 48 min |
| Jul 8, 3:48 PM EDT | Special Marine Warning | BUF | 57 min | |
| Jul 8, 4:13 PM EDT | Severe Thunderstorm Warning | BUF | Erie, Genesee, Niagara, Orleans | 32 min |
| Jul 8, 4:16 PM EDT | Special Weather Statement | BUF | Oswego | 44 min |
| Jul 8, 4:26 PM EDT | Severe Thunderstorm Warning | BUF | Jefferson, Lewis, Oswego | 49 min |
| Jul 8, 4:29 PM EDT | Special Weather Statement | BUF | Monroe | 61 min |
| Jul 8, 4:37 PM EDT | Special Marine Warning | BUF | 53 min | |
| Jul 8, 4:45 PM EDT | Special Weather Statement | BUF | Genesee, Monroe | 30 min |
| Jul 8, 4:53 PM EDT | Flash Flood Warning | BUF | Monroe, Wayne | 3 hr |
| Jul 8, 5:09 PM EDT | Special Weather Statement | BUF | Lewis | 51 min |
| Jul 8, 6:15 PM EDT | Severe Thunderstorm Warning | BUF | Jefferson, Lewis | 60 min |
| Jul 8, 7:52 PM EDT | Special Weather Statement | BUF | Lewis | 38 min |
Nearby
Severe Thunderstorm Warnings in New York, 2021Every severe thunderstorm warning in 2021
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.