Alert archive / New York / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 114, NWS Albany, NY
NWS Albany, NY issued this severe thunderstorm warning at Jul 17, 2021, 5:25 PM EDT for 4 counties in New York; Berkshire County, Massachusetts. It was in force for 65 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
- Jul 17, 2021, 5:25 PM EDT (21:25 UTC)
- Expired
- Jul 17, 2021, 6:30 PM EDT
- In force
- 65 min
- Issued by
- NWS Albany, NY
- Area
- Storm-based polygon
- Hail
- 1.25 in
- Wind
- 60.0 mph
Counties Berkshire County, MA, Columbia County, NY, Dutchess County, NY, Greene County, NY, Ulster County, NY
The radar
The Albany radar (KENX), 57 km from the middle of the area, began a volume at 21:28 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 17, 5:32 PM EDT | TSTM WND DMG | Zena, NY | POWER POLE AND WIRES DOWNED ON ROWE ROAD |
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 17, 1:13 PM EDT | Severe Thunderstorm Watch | SPC | 10 hr |
The nearest sounding before it
Albany, NY (KALY), launched 12:00Z, 9.4 hours before the alert went out and 58 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 958 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 83 m²/s²
- 0-3 km storm-relative helicity
- 163 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted.
219
WUUS51 KALY 172125
SVRALY
MAC003-NYC021-027-039-111-172230-
/O.NEW.KALY.SV.W.0114.210717T2125Z-210717T2230Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Albany NY
525 PM EDT Sat Jul 17 2021
The National Weather Service in Albany has issued a
* Severe Thunderstorm Warning for...
Southwestern Berkshire County in western Massachusetts...
Northeastern Ulster County in east central New York...
Northern Dutchess County in east central New York...
Columbia County in east central New York...
Southeastern Greene County in east central New York...
* Until 630 PM EDT.
* At 525 PM EDT, a severe thunderstorm was located near Clermont, or
10 miles east of Saugerties, moving northeast at 30 mph.
HAZARD...60 mph wind gusts and half dollar size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage
to roofs, siding, and trees.
* Locations impacted include...
Pittsfield, Great Barrington, Hudson, Catskill, Saugerties,
Chatham, Claverack, Lenox, Livingston, Copake, Sheffield,
Coxsackie, Pine Plains, Clermont, Red Hook, Valatie, Athens,
Austerlitz, Ancram and Philmont.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Large hail and damaging winds and continuous cloud to ground
lightning is occurring with this storm. 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.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
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 4201 7412 4242 7375 4245 7353 4246 7320
4210 7335 4205 7349 4196 7361
TIME...MOT...LOC 2125Z 211DEG 25KT 4203 7376
HAIL...1.25IN
WIND...60MPH
$$
Frugis2 follow-up statements
114
WWUS51 KALY 172200
SVSALY
Severe Weather Statement
National Weather Service Albany NY
600 PM EDT Sat Jul 17 2021
NYC027-111-172209-
/O.CAN.KALY.SV.W.0114.000000T0000Z-210717T2230Z/
Ulster NY-Dutchess NY-
600 PM EDT Sat Jul 17 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN ULSTER AND
NORTHERN DUTCHESS COUNTIES IS CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 1100 PM EDT for
western Massachusetts and east central New York.
LAT...LON 4224 7329 4212 7348 4207 7371 4209 7393
4213 7391 4216 7398 4242 7375 4245 7353
4246 7320
TIME...MOT...LOC 2159Z 202DEG 25KT 4225 7362
$$
MAC003-NYC021-039-172230-
/O.CON.KALY.SV.W.0114.000000T0000Z-210717T2230Z/
Berkshire MA-Columbia NY-Greene NY-
600 PM EDT Sat Jul 17 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 PM EDT
FOR SOUTHWESTERN BERKSHIRE...COLUMBIA AND SOUTHEASTERN GREENE
COUNTIES...
At 559 PM EDT, a severe thunderstorm was located over Philmont, or 7
miles south of Chatham, moving northeast at 30 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.
Locations impacted include...
Pittsfield, Great Barrington, Hudson, Catskill, Chatham, Claverack,
Lenox, Livingston, Coxsackie, Clermont, Valatie, Athens, Austerlitz,
Philmont, Kinderhook, Lorenz Park, Claverack-Red Mills, Housatonic,
Ghent and Stockport.
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 this storm.
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.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4224 7329 4212 7348 4207 7371 4209 7393
4213 7391 4216 7398 4242 7375 4245 7353
4246 7320
TIME...MOT...LOC 2159Z 202DEG 25KT 4225 7362
HAIL...1.00IN
WIND...60MPH
$$
Frugis762
WWUS51 KALY 172221
SVSALY
Severe Weather Statement
National Weather Service Albany NY
621 PM EDT Sat Jul 17 2021
MAC003-NYC021-039-172230-
/O.EXP.KALY.SV.W.0114.000000T0000Z-210717T2230Z/
Berkshire MA-Columbia NY-Greene NY-
621 PM EDT Sat Jul 17 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN BERKSHIRE...
COLUMBIA AND SOUTHEASTERN GREENE COUNTIES WILL EXPIRE AT 630 PM
EDT...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire. However heavy rain
is still possible with this thunderstorm.
A Severe Thunderstorm Watch remains in effect until 1100 PM EDT for
western Massachusetts...and east central New York.
LAT...LON 4224 7329 4212 7348 4207 7371 4209 7393
4213 7391 4216 7398 4242 7375 4245 7353
4246 7320
TIME...MOT...LOC 2220Z 211DEG 25KT 4237 7352
$$
FrugisThe office that day
Everything else NWS Albany, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 17, 1:39 PM EDT | Special Weather Statement | ALY | Schoharie | 51 min |
| Jul 17, 2:24 PM EDT | Special Weather Statement | ALY | Dutchess | 51 min |
| Jul 17, 3:22 PM EDT | Severe Thunderstorm Warning | ALY | Dutchess | 53 min |
| Jul 17, 3:37 PM EDT | Special Weather Statement | ALY | Columbia | 53 min |
| Jul 17, 3:57 PM EDT | Special Weather Statement | ALY | Dutchess | 48 min |
| Jul 17, 4:32 PM EDT | Special Weather Statement | ALY | Dutchess | 28 min |
| Jul 17, 4:36 PM EDT | Areal Flood Advisory | ALY | Dutchess, Ulster | 118 min |
| Jul 17, 4:47 PM EDT | Severe Thunderstorm Warning | ALY | Dutchess, Ulster | 58 min |
| Jul 17, 4:49 PM EDT | Special Weather Statement | ALY | Columbia | 41 min |
| Jul 17, 5:23 PM EDT | Areal Flood Advisory | ALY | Columbia, Dutchess, Ulster | 3 hr |
| Jul 17, 5:31 PM EDT | Flash Flood Warning | ALY | Columbia, Dutchess | 4 hr |
| Jul 17, 6:02 PM EDT | Special Weather Statement | ALY | Ulster | 43 min |
| Jul 17, 6:22 PM EDT | Special Weather Statement | ALY | Albany | 38 min |
| Jul 17, 6:30 PM EDT | Areal Flood Advisory | ALY | Ulster | 5 hr |
| Jul 17, 6:49 PM EDT | Special Weather Statement | ALY | Ulster | 26 min |
| Jul 17, 7:51 PM EDT | Areal Flood Advisory | ALY | Dutchess, Ulster | 114 min |
Nearby
Severe Thunderstorm Warnings in New York, 2021Severe Thunderstorm Warnings in Massachusetts, 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.