Alert archive / New York / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 89, NWS Albany, NY

July 7, 2021Columbia County, Greene County, New York

NWS Albany, NY issued this severe thunderstorm warning at Jul 7, 2021, 3:29 PM EDT for Columbia County, Greene County, New York. It was in force for 31 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
Jul 7, 2021, 3:29 PM EDT (19:29 UTC)
Expired
Jul 7, 2021, 4:00 PM EDT
In force
31 min
Issued by
NWS Albany, NY
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Columbia County, NY, Greene County, NY

The radar

The Albany radar (KENX), 39 km from the middle of the area, began a volume at 19:32 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.

IssuedProductOfficeLasted
Jul 7, 2:41 PM EDTSevere Thunderstorm WatchSPC10 hr

The nearest sounding before it

Albany, NY (KALY), launched 12:00Z, 7.5 hours before the alert went out and 41 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-pSkew-T log-p diagram, Albany, NY at 12:00Z on 2021-07-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 18 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Albany, NY at 12:00Z on 2021-07-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 49 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
18 J/kg
Mixed-layer CIN
-132 J/kg
Mixed-layer LCL
923 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
49 m²/s²
0-3 km storm-relative helicity
64 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

441 
WUUS51 KALY 071929
SVRALY
NYC021-039-072000-
/O.NEW.KALY.SV.W.0089.210707T1929Z-210707T2000Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Albany NY
329 PM EDT Wed Jul 7 2021

The National Weather Service in Albany has issued a

* Severe Thunderstorm Warning for...
  Central Columbia County in east central New York...
  Northeastern Greene County in east central New York...

* Until 400 PM EDT.

* At 328 PM EDT, a severe thunderstorm was located near Lorenz Park,
  or near Hudson, moving southeast at 25 mph.

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

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Hudson, Chatham, Claverack, Copake, New Baltimore, Coxsackie,
  Valatie, Athens, Austerlitz, Philmont, Kinderhook, Lorenz Park,
  Claverack-Red Mills, Ghent, Stockport, Stuyvesant, Hillsdale,
  Taghkanic, Churchtown and Rossman.

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 4232 7397 4246 7382 4248 7367 4235 7343
      4205 7353
TIME...MOT...LOC 1928Z 300DEG 23KT 4231 7373 

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

NAS
1 follow-up statement
326 
WWUS51 KALY 071946
SVSALY

Severe Weather Statement
National Weather Service Albany NY
346 PM EDT Wed Jul 7 2021

NYC039-071956-
/O.CAN.KALY.SV.W.0089.000000T0000Z-210707T2000Z/
Greene NY-
346 PM EDT Wed Jul 7 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN GREENE 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.

LAT...LON 4221 7379 4238 7372 4248 7367 4235 7343
      4205 7353
TIME...MOT...LOC 1946Z 300DEG 23KT 4225 7359 

$$

NYC021-072000-
/O.CON.KALY.SV.W.0089.000000T0000Z-210707T2000Z/
Columbia NY-
346 PM EDT Wed Jul 7 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 PM EDT
FOR CENTRAL COLUMBIA COUNTY...

At 346 PM EDT, a severe thunderstorm was located over Philmont, or 7
miles south of Chatham, moving southeast at 25 mph.

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

SOURCE...Radar indicated.

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

Locations impacted include...
Chatham, Claverack, Copake, Valatie, Austerlitz, Philmont,
Kinderhook, Claverack-Red Mills, Lorenz Park, Ghent, Stockport,
Hillsdale, Taghkanic, Chatham Center, Weed Mines, Greenport Center,
Mellenville, Churchtown, Craryville and Red Rock.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4221 7379 4238 7372 4248 7367 4235 7343
      4205 7353
TIME...MOT...LOC 1946Z 300DEG 23KT 4225 7359 

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

NAS

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 7, 1:22 PM EDTSpecial Weather StatementALYSchoharie53 min
Jul 7, 2:14 PM EDTSpecial Weather StatementALYAlbany31 min
Jul 7, 2:25 PM EDTSevere Thunderstorm WarningALYAlbany, Greene, Schoharie35 min
Jul 7, 2:58 PM EDTSevere Thunderstorm WarningALYAlbany, Columbia, Greene, Rensselaer32 min
Jul 7, 3:07 PM EDTSpecial Weather StatementALYGreene23 min
Jul 7, 3:23 PM EDTSpecial Weather StatementALYColumbia37 min
Jul 7, 3:29 PM EDTSpecial Weather StatementALYRensselaer31 min
Jul 7, 3:46 PM EDTSpecial Weather StatementALYGreene29 min
Jul 7, 4:01 PM EDTAreal Flood AdvisoryALYColumbia119 min
Jul 7, 4:41 PM EDTSpecial Weather StatementALYColumbia34 min
Jul 7, 4:44 PM EDTSevere Thunderstorm WarningALYColumbia, Dutchess31 min
Jul 7, 4:59 PM EDTSpecial Weather StatementALYColumbia16 min
Jul 7, 5:03 PM EDTSpecial Weather StatementALYGreene27 min
Jul 7, 5:19 PM EDTSpecial Weather StatementALYColumbia26 min
Jul 7, 5:23 PM EDTSevere Thunderstorm WarningALYColumbia, Dutchess49 min
Jul 7, 5:42 PM EDTSevere Thunderstorm WarningALYSchoharie48 min
Jul 7, 6:03 PM EDTSpecial Weather StatementALYAlbany27 min
Jul 7, 6:06 PM EDTSevere Thunderstorm WarningALYAlbany, Rensselaer39 min
Jul 7, 6:15 PM EDTSpecial Weather StatementALYSchoharie30 min
Jul 7, 6:25 PM EDTSevere Thunderstorm WarningALYAlbany, Schoharie54 min
Jul 7, 6:35 PM EDTSevere Thunderstorm WarningALYAlbany, Schoharie70 min
Jul 7, 6:46 PM EDTSpecial Weather StatementALYRensselaer59 min
Jul 7, 6:48 PM EDTSevere Thunderstorm WarningALYRensselaer27 min
Jul 7, 7:06 PM EDTSpecial Weather StatementALYAlbany24 min
Jul 7, 7:22 PM EDTSpecial Weather StatementALYUlster38 min
Jul 7, 7:34 PM EDTSpecial Weather StatementALYColumbia41 min
Jul 7, 7:59 PM EDTSpecial Weather StatementALYDutchess46 min

Nearby

Severe Thunderstorm Warnings in New York, 2021Every 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.