Alert archive / New York / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 7, NWS Burlington, VT

June 14, 2021Franklin County, New York

NWS Burlington, VT issued this severe thunderstorm warning at Jun 14, 2021, 3:57 PM EDT for Franklin County, New York. It was in force for 48 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
Jun 14, 2021, 3:57 PM EDT (19:57 UTC)
Expired
Jun 14, 2021, 4:45 PM EDT
In force
48 min
Issued by
NWS Burlington, VT
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

County Franklin County, NY

The radar

The Burlington radar (KCXX), 110 km from the middle of the area, began a volume at 19:57 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

TimeReportWhereRemark
Jun 14, 4:02 PM EDTHAIL 1Brushton, NYDIME TO QUARTER SIZE HAIL REPORTED IN BRUSHTON.
Jun 14, 4:06 PM EDTHAIL 1Moira, NYQUARTER SIZE HAIL REPORTED IN MOIRA.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Gray, ME (KGYX), launched 12:00Z, 8.0 hours before the alert went out and 351 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, Gray, ME at 12:00Z on 2021-06-14Temperature 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, Gray, ME at 12:00Z on 2021-06-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 6 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
1919 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
6 m²/s²
0-3 km storm-relative helicity
-83 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

430 
WUUS51 KBTV 141957
SVRBTV
NYC033-142045-
/O.NEW.KBTV.SV.W.0007.210614T1957Z-210614T2045Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Burlington VT
357 PM EDT Mon Jun 14 2021

The National Weather Service in Burlington has issued a

* Severe Thunderstorm Warning for...
  Northwestern Franklin County in northern New York...

* Until 445 PM EDT.

* At 356 PM EDT, a severe thunderstorm was located over Brushton,
  moving northeast at 10 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...
  Moira, Fort Covington, Bombay, Brushton, Westville Center, Fort
  Covington Center and South Bombay.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4499 7429 4476 7450 4478 7457 4500 7457
TIME...MOT...LOC 1956Z 213DEG 9KT 4483 7452 

HAIL...1.00IN
WIND...60MPH
 
$$

Haynes
2 follow-up statements
304 
WWUS51 KBTV 142018
SVSBTV

Severe Weather Statement
National Weather Service Burlington VT
418 PM EDT Mon Jun 14 2021

NYC033-142045-
/O.CON.KBTV.SV.W.0007.000000T0000Z-210614T2045Z/
Franklin NY-
418 PM EDT Mon Jun 14 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 445 PM EDT
FOR NORTHWESTERN FRANKLIN COUNTY...

At 417 PM EDT, a severe thunderstorm was located over Brushton,
moving northeast at 10 mph.

HAZARD...60 mph wind gusts and quarter size hail.

SOURCE...Public in Brushton reported dime sized hail.

IMPACT...Minor hail damage to vehicles is possible. Expect wind 
         damage to trees and powerlines.

Locations impacted include...
Moira, Brushton, South Bombay and Westville Center. 

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 4495 7433 4482 7445 4480 7457 4491 7457
      4494 7446
TIME...MOT...LOC 2017Z 213DEG 9KT 4484 7451 

HAIL...1.00IN
WIND...60MPH
 
$$

Haynes
032 
WWUS51 KBTV 142043
SVSBTV

Severe Weather Statement
National Weather Service Burlington VT
443 PM EDT Mon Jun 14 2021

NYC033-142053-
/O.EXP.KBTV.SV.W.0007.000000T0000Z-210614T2045Z/
Franklin NY-
443 PM EDT Mon Jun 14 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN FRANKLIN COUNTY
WILL EXPIRE AT 445 PM EDT...
                
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 will be allowed to expire.  However small hail
and heavy rain are still possible with this thunderstorm.

LAT...LON 4495 7433 4482 7445 4480 7457 4491 7457
      4494 7446
TIME...MOT...LOC 2043Z 213DEG 9KT 4488 7447 

$$

Haynes

The office that day

Everything else NWS Burlington, VT issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 13, 10:42 PM EDTSpecial Weather StatementBTVSt. Lawrence48 min
Jun 13, 11:33 PM EDTSpecial Weather StatementBTVSt. Lawrence42 min
Jun 14, 1:15 AM EDTSpecial Weather StatementBTVSt. Lawrence60 min
Jun 14, 2:13 AM EDTSpecial Weather StatementBTVFranklin62 min
Jun 14, 2:44 AM EDTSpecial Weather StatementBTVEssex61 min
Jun 14, 12:25 PM EDTSpecial Weather StatementBTVFranklin20 min
Jun 14, 3:47 PM EDTSpecial Weather StatementBTVFranklin28 min
Jun 14, 3:51 PM EDTSpecial Weather StatementBTVFranklin54 min
Jun 14, 4:30 PM EDTSpecial Weather StatementBTVClinton30 min
Jun 14, 4:42 PM EDTSpecial Weather StatementBTVFranklin63 min
Jun 14, 4:54 PM EDTSpecial Weather StatementBTVFranklin36 min
Jun 14, 4:58 PM EDTSpecial Weather StatementBTVClinton17 min
Jun 14, 5:17 PM EDTSpecial Weather StatementBTVFranklin43 min
Jun 14, 5:28 PM EDTSpecial Weather StatementBTVEssex47 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.