Alert archive / New York / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 11, NWS Burlington, VT
NWS Burlington, VT issued this severe thunderstorm warning at Jun 21, 2021, 3:25 PM EDT for 4 counties in New York. It was in force for 54 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jun 21, 2021, 3:25 PM EDT (19:25 UTC)
- Expired
- Jun 21, 2021, 4:19 PM EDT
- In force
- 54 min
- Issued by
- NWS Burlington, VT
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Clinton County, NY, Essex County, NY, Franklin County, NY, St. Lawrence County, NY
The radar
The Burlington radar (KCXX), 77 km from the middle of the area, began a volume at 19:29 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.
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 21, 1:11 PM EDT | Severe Thunderstorm Watch | SPC | 10 hr |
The nearest sounding before it
Albany, NY (KALY), launched 12:00Z, 7.4 hours before the alert went out and 201 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
- 524 J/kg
- Mixed-layer CIN
- -118 J/kg
- Mixed-layer LCL
- 990 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 162 m²/s²
- 0-3 km storm-relative helicity
- 192 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 2.4
The text
As transmitted.
753
WUUS51 KBTV 211925
SVRBTV
NYC019-031-033-089-212030-
/O.NEW.KBTV.SV.W.0011.210621T1925Z-210621T2030Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Burlington VT
325 PM EDT Mon Jun 21 2021
The National Weather Service in Burlington has issued a
* Severe Thunderstorm Warning for...
Clinton County in northern New York...
Central Franklin County in northern New York...
East central St. Lawrence County in northern New York...
Northwestern Essex County in northern New York...
* Until 430 PM EDT.
* At 324 PM EDT, a severe thunderstorm was located near St. Regis
Mountain, moving northeast at 50 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Minor hail damage to vehicles is possible. Expect wind
damage to trees and powerlines.
* Locations impacted include...
Adirondack Regional Airport, Saranac Lake, Tupper Lake, Peru,
Schuyler Falls, Saranac, Altona, Bryants Mill, Lyon Mountain,
Clayburg, Merrill, Port Kent, Debar Mountain, Jericho, Dannemora,
Peasleeville, Keeseville, Madawaska, Harrietstown and Black Brook.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
This is a DANGEROUS SITUATION. This storm is producing widespread
wind damage across Southern Saint Lawrence County. SEEK SHELTER NOW
inside a sturdy structure and stay away from windows!
&&
LAT...LON 4424 7447 4453 7471 4491 7365 4452 7338
TIME...MOT...LOC 1924Z 243DEG 42KT 4439 7440
HAIL...1.00IN
WIND...60MPH
$$
Neiles3 follow-up statements
789
WWUS51 KBTV 211949
SVSBTV
Severe Weather Statement
National Weather Service Burlington VT
349 PM EDT Mon Jun 21 2021
NYC089-211959-
/O.CAN.KBTV.SV.W.0011.000000T0000Z-210621T2030Z/
St. Lawrence NY-
349 PM EDT Mon Jun 21 2021
...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL ST. LAWRENCE
COUNTY IS CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 900 PM EDT for
northern New York.
LAT...LON 4427 7435 4468 7431 4491 7365 4452 7338
TIME...MOT...LOC 1949Z 243DEG 42KT 4452 7403
$$
NYC019-031-033-212030-
/O.CON.KBTV.SV.W.0011.000000T0000Z-210621T2030Z/
Clinton NY-Franklin NY-Essex NY-
349 PM EDT Mon Jun 21 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 PM EDT
FOR CLINTON...SOUTHEASTERN FRANKLIN AND NORTHWESTERN ESSEX
COUNTIES...
At 349 PM EDT, a severe thunderstorm was located over Loon Lake,
moving northeast at 50 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Minor hail damage to vehicles is possible. Expect wind
damage to trees and powerlines.
Locations impacted include...
Adirondack Regional Airport, Saranac Lake, Peru, Schuyler Falls,
Saranac, Altona, Bryants Mill, Lyon Mountain, Clayburg, Merrill, Port
Kent, Debar Mountain, Jericho, Dannemora, Peasleeville, Keeseville,
Harrietstown, Black Brook, Paul Smiths and West Beekmantown.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
Burlington.
&&
LAT...LON 4427 7435 4468 7431 4491 7365 4452 7338
TIME...MOT...LOC 1949Z 243DEG 42KT 4452 7403
HAIL...1.00IN
WIND...60MPH
$$
Neiles458
WWUS51 KBTV 212009
SVSBTV
Severe Weather Statement
National Weather Service Burlington VT
409 PM EDT Mon Jun 21 2021
NYC019-031-033-212030-
/O.CON.KBTV.SV.W.0011.000000T0000Z-210621T2030Z/
Clinton NY-Franklin NY-Essex NY-
409 PM EDT Mon Jun 21 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 PM EDT
FOR CLINTON...SOUTHEASTERN FRANKLIN AND NORTH CENTRAL ESSEX
COUNTIES...
At 409 PM EDT, a severe thunderstorm was located over Moffitsville,
moving northeast at 50 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Minor hail damage to vehicles is possible. Expect wind
damage to trees and powerlines.
Locations impacted include...
Peru, Schuyler Falls, Saranac, Altona, Jericho, Dannemora,
Peasleeville, Clayburg, Keeseville, Port Kent, Black Brook, South
Plattsburgh, West Beekmantown, Chazy Lake, Union Falls,
Morrisonville, Moffittsville, Cadyville, Ausable Point and
Moffitsville.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
Burlington.
&&
LAT...LON 4437 7398 4484 7385 4491 7365 4452 7338
TIME...MOT...LOC 2009Z 243DEG 42KT 4463 7374
HAIL...1.00IN
WIND...60MPH
$$
Neiles776
WWUS51 KBTV 212019
SVSBTV
Severe Weather Statement
National Weather Service Burlington VT
419 PM EDT Mon Jun 21 2021
NYC019-031-033-212029-
/O.CAN.KBTV.SV.W.0011.000000T0000Z-210621T2030Z/
Clinton NY-Franklin NY-Essex NY-
419 PM EDT Mon Jun 21 2021
...THE SEVERE THUNDERSTORM WARNING FOR CLINTON...SOUTHEASTERN
FRANKLIN AND NORTH CENTRAL ESSEX COUNTIES IS CANCELLED...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 900 PM EDT for
northern New York.
To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Burlington.
LAT...LON 4437 7398 4484 7385 4491 7365 4452 7338
TIME...MOT...LOC 2017Z 243DEG 42KT 4468 7359
$$
NeilesThe office that day
Everything else NWS Burlington, VT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 21, 7:59 AM EDT | Special Weather Statement | BTV | St. Lawrence | 61 min |
| Jun 21, 9:12 AM EDT | Special Weather Statement | BTV | Clinton, Franklin | 48 min |
| Jun 21, 10:08 AM EDT | Special Weather Statement | BTV | Clinton | 37 min |
| Jun 21, 1:06 PM EDT | Special Weather Statement | BTV | St. Lawrence | 39 min |
| Jun 21, 1:28 PM EDT | Special Weather Statement | BTV | St. Lawrence | 62 min |
| Jun 21, 1:41 PM EDT | Severe Thunderstorm Warning | BTV | Franklin, St. Lawrence | 49 min |
| Jun 21, 2:08 PM EDT | Special Weather Statement | BTV | St. Lawrence | 67 min |
| Jun 21, 2:35 PM EDT | Severe Thunderstorm Warning | BTV | Franklin, St. Lawrence | 55 min |
| Jun 21, 3:13 PM EDT | Severe Thunderstorm Warning | BTV | Essex | 62 min |
| Jun 21, 4:40 PM EDT | Severe Thunderstorm Warning | BTV | Essex | 65 min |
| Jun 21, 4:57 PM EDT | Special Weather Statement | BTV | Essex | 48 min |
| Jun 21, 5:12 PM EDT | Severe Thunderstorm Warning | BTV | Essex | 63 min |
| Jun 21, 7:50 PM EDT | Special Weather Statement | BTV | Essex | 25 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.