Alert archive / New York / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 184, NWS Albany, NY

November 13, 2021Dutchess County, New York; Northwest Hills Planning Region, Connecticut

NWS Albany, NY issued this severe thunderstorm warning at Nov 13, 2021, 2:09 PM EST for Dutchess County, New York; Northwest Hills Planning Region, Connecticut. It was in force for 51 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: Nov 13, 2021, 2:09 PM EST (19:09 UTC)
Expired: Nov 13, 2021, 3:00 PM EST
In force: 51 min
Issued by: NWS Albany, NY
Area: Storm-based polygon
Tornado: Possible
Hail: 1.0 in
Wind: 60.0 mph

Counties Northwest Hills Planning Region, CT, Dutchess County, NY

The radar

The Brookhaven radar (KOKX), 87 km from the middle of the area, began a volume at 19:08 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
Nov 13, 12:27 PM EST	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 7.2 hours before the alert went out and 87 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1435 m above ground
0-6 km bulk shear: 82 kt
0-1 km storm-relative helicity: 14 m²/s²
0-3 km storm-relative helicity: 34 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

141 
WUUS51 KALY 131909
SVRALY
CTC005-NYC027-132015-
/O.NEW.KALY.SV.W.0184.211113T1909Z-211113T2015Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Albany NY
209 PM EST Sat Nov 13 2021

The National Weather Service in Albany has issued a

* Severe Thunderstorm Warning for...
  Southern Litchfield County in northern Connecticut...
  Southeastern Dutchess County in east central New York...

* Until 315 PM EST.

* At 208 PM EST, a severe thunderstorm was located over Mahopac,
  moving northeast at 50 mph.

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

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees.

* Locations impacted include...
  Torrington, New Milford, Sherman, Pawling, Thomaston, Litchfield,
  Northwest Harwinton, Oakville, Terryville, Woodbury Center,
  Gaylordsville, New Preston, Wingdale, Watertown, Plymouth,
  Woodbury, Harwinton, Bethlehem, Washington and Morris.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Large hail and damaging winds and continuous cloud to ground
lightning is occurring with this storm. Move indoors immediately.
Lightning is one of nature's leading killers. Remember, if you can
hear thunder, you are close enough to be struck by lightning.

&&

Please report hail size...damaging winds and reports of trees down to
the National Weather Service by email at Alb.Stormreport@noaa.gov...
On Facebook at www.facebook.com/nwsalbany or twitter @nwsalbany

LAT...LON 4149 7337 4151 7339 4149 7344 4163 7350
      4165 7349 4167 7351 4153 7353 4150 7389
      4187 7312 4170 7300 4164 7299 4161 7306
      4159 7306 4159 7308 4157 7309 4156 7316
      4151 7316 4151 7332 4147 7332
TIME...MOT...LOC 1908Z 245DEG 42KT 4140 7378 

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

$$

ATE

1 follow-up statement

436 
WWUS51 KALY 132000
SVSALY

Severe Weather Statement
National Weather Service Albany NY
300 PM EST Sat Nov 13 2021

CTC005-NYC027-132010-
/O.CAN.KALY.SV.W.0184.000000T0000Z-211113T2015Z/
Litchfield CT-Dutchess NY-
300 PM EST Sat Nov 13 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN LITCHFIELD AND
SOUTHEASTERN DUTCHESS 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 700 PM EST for
northern Connecticut...and east central New York.

LAT...LON 4149 7337 4151 7339 4149 7344 4163 7350
      4165 7349 4167 7351 4153 7353 4150 7389
      4187 7312 4170 7300 4164 7299 4161 7306
      4159 7306 4159 7308 4157 7309 4156 7316
      4151 7316 4151 7332 4147 7332
TIME...MOT...LOC 1959Z 245DEG 42KT 4166 7304 

$$

ATE

The office that day

Everything else NWS Albany, NY issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Nov 13, 2:53 PM EST	Areal Flood Advisory	ALY	Albany, Columbia, Greene, Rensselaer, Saratoga, Schenectady and 1 more	3 hr

Nearby

Severe Thunderstorm Warnings in New York, 2021 Severe Thunderstorm Warnings in Connecticut, 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.