Alert archive / New York / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 124, NWS Albany, NY

July 20, 2021Rensselaer County, Saratoga County, Washington County, New York

NWS Albany, NY issued this severe thunderstorm warning at Jul 20, 2021, 8:54 PM EDT for Rensselaer County, Saratoga County, Washington County, New York. It was in force for 36 min. 5 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: Jul 20, 2021, 8:54 PM EDT (00:54 UTC)
Expired: Jul 20, 2021, 9:30 PM EDT
In force: 36 min
Issued by: NWS Albany, NY
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Rensselaer County, NY, Saratoga County, NY, Washington County, NY

The radar

The Albany radar (KENX), 65 km from the middle of the area, began a volume at 00:55 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
Jul 20, 9:00 PM EDT	TSTM WND DMG	Cambridge, NY	MULTIPLE TREES AND BRANCHES DOWN. TIME ESTIMATED BY RADAR.
Jul 20, 9:15 PM EDT	TSTM WND DMG	Cambridge, NY	TREE ON HOUSE AND ON ROAD.
Jul 20, 9:15 PM EDT	TSTM WND DMG	Cambridge, NY	MULTIPLE TREES AND BRANCHES DOWN. TIME ESTIMATED BY RADAR.
Jul 20, 9:18 PM EDT	TSTM WND DMG	2 Ne Eagle Bridge, NY	TREE DOWN ON ROAD. STATE ROUTE 22.
Jul 20, 9:25 PM EDT	TSTM WND DMG	2 Nne Hoosick Falls, NY	TREES AND WIRES DOWN.

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
Jul 20, 3:05 PM EDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Albany, NY (KALY), launched 00:00Z, 0.9 hours before the alert went out and 42 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: 1226 J/kg
Mixed-layer CIN: -24 J/kg
Mixed-layer LCL: 1198 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 89 m²/s²
0-3 km storm-relative helicity: 82 m²/s²
Significant tornado parameter: 0.4
Supercell composite: 4.6

Open this sounding in Storm Lab

The text

As transmitted.

983 
WUUS51 KALY 210054
SVRALY
NYC083-091-115-210130-
/O.NEW.KALY.SV.W.0124.210721T0054Z-210721T0130Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Albany NY
854 PM EDT Tue Jul 20 2021

The National Weather Service in Albany has issued a

* Severe Thunderstorm Warning for...
  Southeastern Saratoga County in east central New York...
  Southern Washington County in east central New York...
  Northeastern Rensselaer County in east central New York...

* Until 930 PM EDT.

* At 853 PM EDT, a severe thunderstorm was located near
  Mechanicville, moving east at 35 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Mechanicville, Hoosick Falls, Cambridge, Greenwich, Gates, Hoosick,
  Lee, White Creek, Easton, Stillwater, Schuylerville, Victory,
  Schaghticoke, Valley Falls, Deans Corners, Schaghticoke Hill,
  Center White Creek, Hoosick Junction, Center Falls and Petersburg
  Junction.

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 4283 7328 4283 7329 4282 7329 4291 7379
      4308 7372 4315 7326
TIME...MOT...LOC 0053Z 277DEG 29KT 4299 7366 

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

Rathbun

1 follow-up statement

548 
WWUS51 KALY 210114
SVSALY

Severe Weather Statement
National Weather Service Albany NY
914 PM EDT Tue Jul 20 2021

NYC091-210124-
/O.CAN.KALY.SV.W.0124.000000T0000Z-210721T0130Z/
Saratoga NY-
914 PM EDT Tue Jul 20 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN SARATOGA COUNTY
IS CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

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

LAT...LON 4283 7328 4282 7329 4289 7363 4301 7360
      4306 7358 4309 7358 4315 7326
TIME...MOT...LOC 0114Z 277DEG 29KT 4297 7343 

$$

NYC083-115-210130-
/O.CON.KALY.SV.W.0124.000000T0000Z-210721T0130Z/
Washington NY-Rensselaer NY-
914 PM EDT Tue Jul 20 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 930 PM EDT
FOR SOUTHERN WASHINGTON AND NORTHEASTERN RENSSELAER COUNTIES...

At 914 PM EDT, a severe thunderstorm was located near Cambridge, or
near Hoosick Falls, moving east at 35 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

Locations impacted include...
Hoosick Falls, Cambridge, Greenwich, Hoosick, Lee, White Creek,
Easton, Schaghticoke, Valley Falls, White Creek Station, Center White
Creek, Hoosick Junction, West Cambridge, Battenville, Post Corners,
Center Falls, Petersburg Junction, East Hoosick, Johnsonville and
East Buskirk.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4283 7328 4282 7329 4289 7363 4301 7360
      4306 7358 4309 7358 4315 7326
TIME...MOT...LOC 0114Z 277DEG 29KT 4297 7343 

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

Rathbun

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 20, 8:11 PM EDT	Areal Flood Advisory	ALY	Fulton, Saratoga, Schenectady, Warren, Washington	3 hr
Jul 20, 8:12 PM EDT	Special Weather Statement	ALY	Montgomery	33 min
Jul 20, 8:17 PM EDT	Severe Thunderstorm Warning	ALY	Fulton, Montgomery, Saratoga, Schenectady	43 min
Jul 20, 8:24 PM EDT	Special Weather Statement	ALY	Saratoga, Washington	36 min
Jul 20, 8:31 PM EDT	Severe Thunderstorm Warning	ALY	Fulton, Saratoga, Warren, Washington	59 min
Jul 20, 8:39 PM EDT	Areal Flood Advisory	ALY	Montgomery, Schenectady, Schoharie	3 hr
Jul 20, 8:40 PM EDT	Severe Thunderstorm Warning	ALY	Montgomery, Schenectady, Schoharie	50 min
Jul 20, 8:49 PM EDT	Areal Flood Advisory	ALY	Rensselaer, Saratoga, Schenectady, Washington	3 hr
Jul 20, 9:06 PM EDT	Special Weather Statement	ALY	Albany	39 min
Jul 20, 9:12 PM EDT	Special Weather Statement	ALY	Rensselaer	33 min
Jul 20, 9:24 PM EDT	Severe Thunderstorm Warning	ALY	Rensselaer, Washington	51 min
Jul 20, 9:31 PM EDT	Special Weather Statement	ALY	Columbia, Greene	44 min
Jul 20, 9:38 PM EDT	Severe Thunderstorm Warning	ALY	Rensselaer	52 min
Jul 20, 9:46 PM EDT	Severe Thunderstorm Warning	ALY	Columbia, Rensselaer	59 min
Jul 20, 10:40 PM EDT	Special Weather Statement	ALY	Ulster	50 min
Jul 20, 11:33 PM EDT	Special Weather Statement	ALY	Dutchess	42 min
Jul 20, 11:45 PM EDT	Areal Flood Advisory	ALY	Montgomery, Schenectady, Schoharie	2 hr

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.