Alert archive / New York / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 24, NWS Burlington, VT

July 8, 2021Franklin County, St. Lawrence County, New York

NWS Burlington, VT issued this severe thunderstorm warning at Jul 8, 2021, 7:35 PM EDT for Franklin County, St. Lawrence County, New York. It was in force for 55 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
Jul 8, 2021, 7:35 PM EDT (23:35 UTC)
Expired
Jul 8, 2021, 8:30 PM EDT
In force
55 min
Issued by
NWS Burlington, VT
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Franklin County, NY, St. Lawrence County, NY

The radar

The Ft Drum radar (KTYX), 103 km from the middle of the area, began a volume at 23:35 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 nearest sounding before it

Albany, NY (KALY), launched 12:00Z, 11.6 hours before the alert went out and 178 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.

Skew-T log-pSkew-T log-p diagram, Albany, NY at 12:00Z on 2021-07-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Albany, NY at 12:00Z on 2021-07-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 56 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
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

Open this sounding in Storm Lab

The text

As transmitted.

034 
WUUS51 KBTV 082335
SVRBTV
NYC033-089-090030-
/O.NEW.KBTV.SV.W.0024.210708T2335Z-210709T0030Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Burlington VT
735 PM EDT Thu Jul 8 2021

The National Weather Service in Burlington has issued a

* Severe Thunderstorm Warning for...
  Southwestern Franklin County in northern New York...
  Southeastern St. Lawrence County in northern New York...

* Until 830 PM EDT.

* At 735 PM EDT, a severe thunderstorm was located over Wanakena,
  moving northeast at 35 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to trees and powerlines.

* Locations impacted include...
  Tupper Lake, Oswegatchie, Piercefield, Carry Falls Reservoir,
  Wawbeek, Horseshoe Lake, Cranberry Lake, Star Lake, Lower
  Oswegatchie, Aldrich, Conifer, Saranac Inn, Wanakena, Gale, Newton
  Falls, Childwold, Shurtleff, Axton Landing and Coreys.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4416 7410 4411 7442 4405 7503 4414 7514
      4460 7455
TIME...MOT...LOC 2335Z 230DEG 30KT 4414 7496 

HAIL...<.75IN
WIND...60MPH
 
$$

SLW
2 follow-up statements
695 
WWUS51 KBTV 082357
SVSBTV

Severe Weather Statement
National Weather Service Burlington VT
757 PM EDT Thu Jul 8 2021

NYC033-089-090030-
/O.CON.KBTV.SV.W.0024.000000T0000Z-210709T0030Z/
Franklin NY-St. Lawrence NY-
757 PM EDT Thu Jul 8 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 830 PM EDT
FOR SOUTHWESTERN FRANKLIN AND SOUTHEASTERN ST. LAWRENCE COUNTIES...

At 757 PM EDT, a severe thunderstorm was located over Shurtleff,
moving northeast at 35 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect damage to trees and powerlines.

Locations impacted include...
Tupper Lake, Piercefield, Carry Falls Reservoir, Wawbeek, Horseshoe
Lake, Cranberry Lake, Conifer, Saranac Inn, Gale, Childwold,
Shurtleff, Axton Landing and Coreys.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4407 7483 4428 7494 4460 7455 4416 7411
TIME...MOT...LOC 2357Z 230DEG 30KT 4426 7476 

HAIL...<.75IN
WIND...60MPH
 
$$

SLW
339 
WWUS51 KBTV 090018
SVSBTV

Severe Weather Statement
National Weather Service Burlington VT
818 PM EDT Thu Jul 8 2021

NYC033-089-090030-
/O.CON.KBTV.SV.W.0024.000000T0000Z-210709T0030Z/
Franklin NY-St. Lawrence NY-
818 PM EDT Thu Jul 8 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 830 PM EDT
FOR SOUTHWESTERN FRANKLIN AND SOUTHEASTERN ST. LAWRENCE COUNTIES...

At 817 PM EDT, a severe thunderstorm was located 7 miles northeast of
Childwold, moving northeast at 35 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect damage to trees and powerlines.

Locations impacted include...
Tupper Lake, Piercefield, Wawbeek, Horseshoe Lake, Gale, Conifer,
Saranac Inn, Childwold, Axton Landing and Coreys.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

Please report any damage to weather.gov/btv/stormreport

&&

LAT...LON 4409 7467 4433 7472 4460 7455 4416 7411
TIME...MOT...LOC 0017Z 230DEG 30KT 4437 7458 

HAIL...<.75IN
WIND...60MPH
 
$$

SLW

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.