Alert archive / New York / Tornado Warnings in 2020

Tornado Warning 2, NWS Burlington, VT

August 2, 2020Essex County, New York

NWS Burlington, VT issued this tornado warning at Aug 2, 2020, 8:11 PM EDT for Essex County, New York. It was in force for 34 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
Aug 2, 2020, 8:11 PM EDT (00:11 UTC)
Expired
Aug 2, 2020, 8:45 PM EDT
In force
34 min
Issued by
NWS Burlington, VT
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

County Essex County, NY

The radar

The Burlington radar (KCXX), 88 km from the middle of the area, began a volume at 00:11 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.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Aug 2, 3:10 PM EDTTornado WatchSPC7 hr

The nearest sounding before it

Albany, NY (KALY), launched 00:00Z, 0.2 hours before the alert went out and 152 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 00:00Z on 2020-08-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1081 joules per kilogram.LCLLFCEL10008507005003002001001 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 00:00Z on 2020-08-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 256 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
1081 J/kg
Mixed-layer CIN
-39 J/kg
Mixed-layer LCL
1190 m above ground
0-6 km bulk shear
51 kt
0-1 km storm-relative helicity
256 m²/s²
0-3 km storm-relative helicity
337 m²/s²
Significant tornado parameter
1.3
Supercell composite
13.2

Open this sounding in Storm Lab

The text

As transmitted.

251 
WFUS51 KBTV 030011
TORBTV
NYC031-030045-
/O.NEW.KBTV.TO.W.0002.200803T0011Z-200803T0045Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Burlington VT
811 PM EDT Sun Aug 2 2020

The National Weather Service in Burlington has issued a

* Tornado Warning for...
  West central Essex County in northern New York...

* Until 845 PM EDT.
    
* At 811 PM EDT, a severe thunderstorm capable of producing a tornado
  was located near Newcomb, moving northeast at 25 mph.

  HAZARD...Tornado.

  SOURCE...Radar indicated rotation.

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely.

* This dangerous storm will be near...
  Mount Marcy around 840 PM EDT.

Other locations impacted by this tornadic thunderstorm include
Tahawus.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 4396 7419 4403 7422 4424 7397 4405 7377
TIME...MOT...LOC 0011Z 231DEG 22KT 4403 7415 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

Haynes
2 follow-up statements
476 
WWUS51 KBTV 030030
SVSBTV

Severe Weather Statement
National Weather Service Burlington VT
830 PM EDT Sun Aug 2 2020

NYC031-030045-
/O.CON.KBTV.TO.W.0002.000000T0000Z-200803T0045Z/
Essex NY-
830 PM EDT Sun Aug 2 2020

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 845 PM EDT FOR WEST
CENTRAL ESSEX COUNTY...
    
At 830 PM EDT, a severe thunderstorm capable of producing a tornado
was located near Tahawus, moving northeast at 25 mph.

HAZARD...Tornado.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

This dangerous storm will be near...
  Mount Marcy around 840 PM EDT.

Other locations impacted by this tornadic thunderstorm include
Tahawus.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 4403 7406 4410 7411 4424 7397 4405 7377
TIME...MOT...LOC 0030Z 231DEG 22KT 4410 7402 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

Haynes
782 
WWUS51 KBTV 030043
SVSBTV

Severe Weather Statement
National Weather Service Burlington VT
843 PM EDT Sun Aug 2 2020

NYC031-030053-
/O.EXP.KBTV.TO.W.0002.000000T0000Z-200803T0045Z/
Essex NY-
843 PM EDT Sun Aug 2 2020

...THE TORNADO WARNING FOR WEST CENTRAL ESSEX COUNTY WILL EXPIRE AT
845 PM EDT...
    
The tornado threat has diminished and the Tornado Warning has been
cancelled. However, large hail and damaging winds remain likely and a
Severe Thunderstorm Warning remains in effect for the area.

A Tornado Watch remains in effect until 1000 PM EDT for northern New
York.

LAT...LON 4403 7406 4410 7411 4424 7397 4405 7377
TIME...MOT...LOC 0043Z 231DEG 22KT 4414 7394 

$$

Haynes

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 2, 8:32 PM EDTSpecial Weather StatementBTVEssex58 min
Aug 2, 8:42 PM EDTSevere Thunderstorm WarningBTVEssex14 min
Aug 2, 8:54 PM EDTSevere Thunderstorm WarningBTVEssex, Franklin51 min
Aug 2, 9:37 PM EDTSpecial Weather StatementBTVEssex53 min
Aug 2, 9:50 PM EDTSpecial Weather StatementBTVEssex25 min
Aug 3, 3:02 AM EDTFlash Flood WatchBTVClinton, Essex43 hr
Aug 3, 3:13 PM EDTWind AdvisoryBTVClinton, Essex31 hr

Nearby

Tornado Warnings in New York, 2020Every tornado warning in 2020Tornadoes in 2020

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.