Alert archive / New York / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 42, NWS Albany, NY

June 21, 2021Greene County, Ulster County, New York

NWS Albany, NY issued this severe thunderstorm warning at Jun 21, 2021, 8:37 PM EDT for Greene County, Ulster County, New York. It was in force for 53 min. 1 report 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 21, 2021, 8:37 PM EDT (00:37 UTC)
Expired: Jun 21, 2021, 9:30 PM EDT
In force: 53 min
Issued by: NWS Albany, NY
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Greene County, NY, Ulster County, NY

The radar

The Albany radar (KENX), 71 km from the middle of the area, began a volume at 00:36 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

Time	Report	Where	Remark
Jun 21, 9:09 PM EDT	TSTM WND DMG	3 Ssw Lexington, NY	THE NORTHBOUND LANE OF ROUTE 42 WAS CLOSED JUST SOUTH OF SPRUCETON ROAD DUE TO A DOWNED TREE

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

The watch it was issued in

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

Issued	Product	Office	Lasted
Jun 21, 3:45 PM EDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Albany, NY (KALY), launched 00:00Z, 0.6 hours before the alert went out and 90 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: 1525 J/kg
Mixed-layer CIN: -17 J/kg
Mixed-layer LCL: 1247 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: 218 m²/s²
0-3 km storm-relative helicity: 283 m²/s²
Significant tornado parameter: 1.1
Supercell composite: 12.5

Open this sounding in Storm Lab

The text

As transmitted.

032 
WUUS51 KALY 220037
SVRALY
NYC039-111-220130-
/O.NEW.KALY.SV.W.0042.210622T0037Z-210622T0130Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Albany NY
837 PM EDT Mon Jun 21 2021

The National Weather Service in Albany has issued a

* Severe Thunderstorm Warning for...
  Ulster County in east central New York...
  Southwestern Greene County in east central New York...

* Until 930 PM EDT.

* At 837 PM EDT, a severe thunderstorm was located near Willowemoc,
  or 11 miles north of Liberty, moving northeast at 35 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to roofs, siding, and trees.

* Locations impacted include...
  Kingston, Hunter, Hurley, Woodstock, Windham, High Falls, Tillson,
  West Hurley, Woodland Valley Campground, West Shokan, Kenneth L
  Wilson Campground, Phoenicia, Mount Tremper, Lanesville,
  Olivebridge, Kerhonkson, Port Ewen, Rosendale, Marbletown and
  Shandaken.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

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 4175 7457 4188 7445 4202 7478 4212 7456
      4215 7453 4214 7450 4217 7445 4220 7454
      4225 7450 4235 7414 4185 7397 4173 7454
TIME...MOT...LOC 0037Z 244DEG 29KT 4196 7473 

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

MSE

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 21, 8:05 PM EDT	Areal Flood Advisory	ALY	Warren, Washington	3 hr
Jun 21, 8:12 PM EDT	Severe Thunderstorm Warning	ALY	Greene, Schoharie	51 min
Jun 21, 8:29 PM EDT	Severe Thunderstorm Warning	ALY	Warren, Washington	43 min
Jun 21, 8:34 PM EDT	Special Weather Statement	ALY	Saratoga	41 min
Jun 21, 8:43 PM EDT	Severe Thunderstorm Warning	ALY	Montgomery, Saratoga, Schenectady	62 min
Jun 21, 8:49 PM EDT	Severe Thunderstorm Warning	ALY	Albany, Schenectady, Schoharie	30 min
Jun 21, 9:15 PM EDT	Severe Thunderstorm Warning	ALY	Washington	60 min
Jun 21, 9:34 PM EDT	Special Weather Statement	ALY	Columbia, Dutchess, Rensselaer	26 min
Jun 21, 9:37 PM EDT	Areal Flood Advisory	ALY	Washington	72 min
Jun 21, 9:44 PM EDT	Severe Thunderstorm Warning	ALY	Albany, Rensselaer, Saratoga	61 min
Jun 21, 9:49 PM EDT	Severe Thunderstorm Warning	ALY	Columbia, Dutchess, Greene, Ulster	56 min

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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.