Alert archive / New York / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 101, NWS Buffalo, NY

August 13, 2021Lewis County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at Aug 13, 2021, 3:04 PM EDT for Lewis County, New York. It was in force for 26 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 13, 2021, 3:04 PM EDT (19:04 UTC)
Expired: Aug 13, 2021, 3:30 PM EDT
In force: 26 min
Issued by: NWS Buffalo, NY
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Lewis County, NY

The radar

The Ft Drum radar (KTYX), 42 km from the middle of the area, began a volume at 19:07 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, 7.1 hours before the alert went out and 183 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 239 J/kg
Mixed-layer CIN: -124 J/kg
Mixed-layer LCL: 879 m above ground
0-6 km bulk shear: 16 kt
0-1 km storm-relative helicity: 31 m²/s²
0-3 km storm-relative helicity: 27 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

As transmitted.

363 
WUUS51 KBUF 131904
SVRBUF
NYC049-131930-
/O.NEW.KBUF.SV.W.0101.210813T1904Z-210813T1930Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Buffalo NY
304 PM EDT Fri Aug 13 2021

The National Weather Service in Buffalo has issued a

* Severe Thunderstorm Warning for...
  Northeastern Lewis County in central New York...

* Until 330 PM EDT.

* At 303 PM EDT, a severe thunderstorm was located 15 miles southwest
  of Star Lake, or 22 miles northwest of Old Forge, moving northeast
  at 20 mph.

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

  SOURCE...Radar indicated.

  IMPACT...Minor damage to vehicles is possible. Expect wind damage 
           to trees and power lines.

* Locations impacted include...
  Indian River, Belfort and Soft Maple Reservoir. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4384 7528 4402 7540 4413 7525 4410 7517
      4388 7514
TIME...MOT...LOC 1903Z 245DEG 18KT 4398 7522 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Thomas

1 follow-up statement

428 
WWUS51 KBUF 131930
SVSBUF

Severe Weather Statement
National Weather Service Buffalo NY
330 PM EDT Fri Aug 13 2021

NYC049-131939-
/O.EXP.KBUF.SV.W.0101.000000T0000Z-210813T1930Z/
Lewis NY-
330 PM EDT Fri Aug 13 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN LEWIS COUNTY WILL
EXPIRE AT 330 PM EDT...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.

A Severe Thunderstorm Watch remains in effect until 1100 PM EDT for
central New York.

LAT...LON 4384 7528 4402 7540 4413 7525 4410 7517
      4388 7514
TIME...MOT...LOC 1929Z 250DEG 16KT 4394 7514 

$$

Thomas

Nearby

Severe Thunderstorm Warnings in New York, 2021 Every 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.