Alert archive / New York / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 54, NWS Albany, NY

June 29, 20214 counties in New York

NWS Albany, NY issued this severe thunderstorm warning at Jun 29, 2021, 7:45 PM EDT for 4 counties in New York. It was in force for 60 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: Jun 29, 2021, 7:45 PM EDT (23:45 UTC)
Expired: Jun 29, 2021, 8:45 PM EDT
In force: 60 min
Issued by: NWS Albany, NY
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Albany County, NY, Columbia County, NY, Greene County, NY, Rensselaer County, NY

The radar

The Albany radar (KENX), 35 km from the middle of the area, began a volume at 23:44 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, 11.8 hours before the alert went out and 29 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: 333 J/kg
Mixed-layer CIN: -97 J/kg
Mixed-layer LCL: 1057 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 72 m²/s²
0-3 km storm-relative helicity: 80 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.4

Open this sounding in Storm Lab

The text

As transmitted.

701 
WUUS51 KALY 292345
SVRALY
NYC001-021-039-083-300045-
/O.NEW.KALY.SV.W.0054.210629T2345Z-210630T0045Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Albany NY
745 PM EDT Tue Jun 29 2021

The National Weather Service in Albany has issued a

* Severe Thunderstorm Warning for...
  Northeastern Columbia County in east central New York...
  Southeastern Albany County in east central New York...
  Northeastern Greene County in east central New York...
  Southern Rensselaer County in east central New York...

* Until 845 PM EDT.

* At 745 PM EDT, severe thunderstorms were located along a line
  extending from East Greenbush to near New Baltimore to 7 miles east
  of Preston Hollow, moving east at 15 mph.

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

  SOURCE...Radar indicated.

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

* Locations impacted include...
  East Greenbush, Rensselaer, Chatham, Nassau, Delmar, New Baltimore,
  Ravena, Stephentown, Coxsackie, New Lebanon, Valatie,
  Castleton-On-Hudson, Kinderhook, Selkirk, Feura Bush, Coeymans,
  Cairo, Ghent, Stockport and Stuyvesant.

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 4242 7338 4236 7341 4225 7401 4241 7418
      4253 7390 4263 7387 4261 7333
TIME...MOT...LOC 2345Z 285DEG 14KT 4259 7374 4246 7375 4241 7407 

HAIL...0.75IN
WIND...60MPH
 
$$

JPV

2 follow-up statements

287 
WWUS51 KALY 300012
SVSALY

Severe Weather Statement
National Weather Service Albany NY
812 PM EDT Tue Jun 29 2021

NYC001-300022-
/O.CAN.KALY.SV.W.0054.000000T0000Z-210630T0045Z/
Albany NY-
812 PM EDT Tue Jun 29 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN ALBANY COUNTY IS
CANCELLED...

The storms which prompted the warning have moved out of the warned 
area. Therefore, the warning has been cancelled.

LAT...LON 4225 7401 4234 7408 4241 7409 4244 7373
      4256 7356 4254 7335 4242 7338 4236 7341
TIME...MOT...LOC 0012Z 295DEG 20KT 4251 7350 4239 7359 4234 7401 

$$

NYC021-039-083-300045-
/O.CON.KALY.SV.W.0054.000000T0000Z-210630T0045Z/
Columbia NY-Greene NY-Rensselaer NY-
812 PM EDT Tue Jun 29 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 845 PM EDT
FOR NORTHEASTERN COLUMBIA...NORTHEASTERN GREENE AND SOUTHEASTERN
RENSSELAER COUNTIES...

At 812 PM EDT, severe thunderstorms were located along a line
extending from near Stephentown to Chatham to 10 miles north of
North-South Lake Campground, moving southeast at 25 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

Locations impacted include...
Chatham, Nassau, Stephentown, Coxsackie, New Lebanon, Valatie,
Kinderhook, Cairo, Ghent, Stockport, Stuyvesant, Canaan, East Nassau,
Jacks Corners, Rossman, Rayville, Result, Earlton, Otter Hook and
Riders Mills.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Continuous cloud to ground lightning is occurring with these storms.
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.

&&

LAT...LON 4225 7401 4234 7408 4241 7409 4244 7373
      4256 7356 4254 7335 4242 7338 4236 7341
TIME...MOT...LOC 0012Z 295DEG 20KT 4251 7350 4239 7359 4234 7401 

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

JPV

849 
WWUS51 KALY 300039
SVSALY

Severe Weather Statement
National Weather Service Albany NY
839 PM EDT Tue Jun 29 2021

NYC021-039-083-300049-
/O.EXP.KALY.SV.W.0054.000000T0000Z-210630T0045Z/
Columbia NY-Greene NY-Rensselaer NY-
839 PM EDT Tue Jun 29 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN COLUMBIA...
NORTHEASTERN GREENE AND SOUTHEASTERN RENSSELAER COUNTIES WILL EXPIRE
AT 845 PM EDT...
            
The storms which prompted the warning have weakened below severe
limits, and no longer pose an immediate threat to life or property.
Therefore, the warning will be allowed to expire.

LAT...LON 4225 7401 4234 7408 4241 7409 4244 7373
      4256 7356 4254 7335 4242 7338 4236 7341
TIME...MOT...LOC 0039Z 285DEG 14KT 4248 7337 4236 7346 4231 7388 

$$

JPV

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 29, 1:54 PM EDT	Special Weather Statement	ALY	Dutchess	36 min
Jun 29, 1:59 PM EDT	Special Weather Statement	ALY	Columbia	31 min
Jun 29, 2:01 PM EDT	Special Weather Statement	ALY	Montgomery	29 min
Jun 29, 2:12 PM EDT	Severe Thunderstorm Warning	ALY	Columbia	22 min
Jun 29, 2:19 PM EDT	Areal Flood Advisory	ALY	Columbia, Dutchess	64 min
Jun 29, 2:43 PM EDT	Special Weather Statement	ALY	Dutchess	32 min
Jun 29, 2:45 PM EDT	Special Weather Statement	ALY	Warren	30 min
Jun 29, 2:52 PM EDT	Special Weather Statement	ALY	Schoharie	23 min
Jun 29, 3:16 PM EDT	Special Weather Statement	ALY	Washington	29 min
Jun 29, 3:18 PM EDT	Special Weather Statement	ALY	Schenectady	27 min
Jun 29, 3:29 PM EDT	Special Weather Statement	ALY	Washington	31 min
Jun 29, 3:41 PM EDT	Severe Thunderstorm Warning	ALY	Washington	13 min
Jun 29, 3:52 PM EDT	Heat Advisory	ALY	Albany, Columbia, Dutchess, Greene, Rensselaer, Saratoga and 4 more	27 hr
Jun 29, 4:20 PM EDT	Special Weather Statement	ALY	Rensselaer	40 min
Jun 29, 4:42 PM EDT	Severe Thunderstorm Warning	ALY	Columbia, Rensselaer	63 min
Jun 29, 4:49 PM EDT	Special Weather Statement	ALY	Otsego	26 min
Jun 29, 5:02 PM EDT	Special Weather Statement	ALY	Dutchess	28 min
Jun 29, 5:07 PM EDT	Special Weather Statement	ALY	Rensselaer	38 min
Jun 29, 5:15 PM EDT	Severe Thunderstorm Warning	ALY	Columbia, Rensselaer	60 min
Jun 29, 5:20 PM EDT	Special Weather Statement	ALY	Otsego	25 min
Jun 29, 5:44 PM EDT	Special Weather Statement	ALY	Montgomery	46 min
Jun 29, 5:46 PM EDT	Areal Flood Advisory	ALY	Columbia	119 min
Jun 29, 5:57 PM EDT	Severe Thunderstorm Warning	ALY	Montgomery, Schenectady, Schoharie	63 min
Jun 29, 6:00 PM EDT	Special Weather Statement	ALY	Montgomery	45 min
Jun 29, 6:32 PM EDT	Special Weather Statement	ALY	Columbia	43 min
Jun 29, 6:44 PM EDT	Special Weather Statement	ALY	Schenectady	31 min
Jun 29, 6:53 PM EDT	Severe Thunderstorm Warning	ALY	Albany, Schenectady, Schoharie	52 min
Jun 29, 7:38 PM EDT	Special Weather Statement	ALY	Albany	37 min
Jun 29, 7:47 PM EDT	Special Weather Statement	ALY	Rensselaer	28 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.