Alert archive / New York / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 179, NWS Albany, NY

September 18, 2021Rensselaer County, Saratoga County, New York

NWS Albany, NY issued this severe thunderstorm warning at Sep 18, 2021, 4:29 PM EDT for Rensselaer County, Saratoga County, New York. It was in force for 21 min. 2 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: Sep 18, 2021, 4:29 PM EDT (20:29 UTC)
Expired: Sep 18, 2021, 4:50 PM EDT
In force: 21 min
Issued by: NWS Albany, NY
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Rensselaer County, NY, Saratoga County, NY

The radar

The Albany radar (KENX), 43 km from the middle of the area, began a volume at 20:33 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
Sep 18, 4:40 PM EDT	HAIL 0.88	1 W Malta, NY	NICKEL SIZE HAIL ON CORONADO WAY
Sep 18, 4:42 PM EDT	TSTM WND DMG	1 Sse Malta, NY	TREE DOWN ON PARTRIDGE DRUM RD

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

The nearest sounding before it

Albany, NY (KALY), launched 12:00Z, 8.5 hours before the alert went out and 22 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: 24 J/kg
Mixed-layer CIN: -70 J/kg
Mixed-layer LCL: 595 m above ground
0-6 km bulk shear: 17 kt
0-1 km storm-relative helicity: 81 m²/s²
0-3 km storm-relative helicity: 78 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

419 
WUUS51 KALY 182029
SVRALY
NYC083-091-182115-
/O.NEW.KALY.SV.W.0179.210918T2029Z-210918T2115Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Albany NY
429 PM EDT Sat Sep 18 2021

The National Weather Service in Albany has issued a

* Severe Thunderstorm Warning for...
  Southeastern Saratoga County in east central New York...
  Northwestern Rensselaer County in east central New York...

* Until 515 PM EDT.

* At 429 PM EDT, a severe thunderstorm was located over Round Lake,
  or near Mechanicville, moving southeast at 25 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.

* This severe thunderstorm will be near...
  Mechanicville around 445 PM EDT.
  Waterford around 455 PM EDT.
  Troy around 500 PM EDT.
  Center Brunswick around 510 PM EDT.

Other locations impacted by this severe thunderstorm include
Schaghticoke Hill, Johnsonville, West Milton, Willow Glen, Coons,
Garrison Manor, Wayville, Schaghticoke, Pleasantdale and Tamarack.

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 4270 7356 4277 7368 4278 7368 4278 7369
      4279 7371 4282 7372 4281 7374 4297 7401
      4308 7388 4297 7363 4294 7363 4294 7355
      4288 7340
TIME...MOT...LOC 2029Z 303DEG 20KT 4297 7377 

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

$$

DBT

1 follow-up statement

967 
WWUS51 KALY 182050
SVSALY

Severe Weather Statement
National Weather Service Albany NY
450 PM EDT Sat Sep 18 2021

NYC083-091-182100-
/O.CAN.KALY.SV.W.0179.000000T0000Z-210918T2115Z/
Saratoga NY-Rensselaer NY-
450 PM EDT Sat Sep 18 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN SARATOGA AND
NORTHWESTERN RENSSELAER 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.

LAT...LON 4270 7356 4277 7368 4278 7368 4278 7369
      4279 7371 4282 7372 4281 7374 4297 7401
      4308 7388 4297 7363 4294 7363 4294 7355
      4288 7340
TIME...MOT...LOC 2048Z 303DEG 20KT 4291 7364 

$$

DBT

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 18, 2:02 PM EDT	Special Weather Statement	ALY	Herkimer	43 min
Sep 18, 2:40 PM EDT	Special Weather Statement	ALY	Fulton	35 min
Sep 18, 3:40 PM EDT	Special Weather Statement	ALY	Saratoga	50 min
Sep 18, 4:24 PM EDT	Special Weather Statement	ALY	Saratoga	51 min
Sep 18, 5:06 PM EDT	Special Weather Statement	ALY	Washington	39 min
Sep 18, 5:08 PM EDT	Special Weather Statement	ALY	Rensselaer	52 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.