Alert archive / New York / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 36, NWS Albany, NY

June 21, 2021Hamilton County, Herkimer County, New York

NWS Albany, NY issued this severe thunderstorm warning at Jun 21, 2021, 6:18 PM EDT for Hamilton County, Herkimer County, New York. It was in force for 57 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
Jun 21, 2021, 6:18 PM EDT (22:18 UTC)
Expired
Jun 21, 2021, 7:15 PM EDT
In force
57 min
Issued by
NWS Albany, NY
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Hamilton County, NY, Herkimer County, NY

The radar

The Ft Drum radar (KTYX), 64 km from the middle of the area, began a volume at 22:22 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

TimeReportWhereRemark
Jun 21, 6:31 PM EDTTSTM WND DMGOld Forge, NYREPORT OF TREES DOWN
Jun 21, 6:35 PM EDTTSTM WND DMGOld Forge, NYALL LANES ON ROUTE 28 IN OLD FORGE ARE BLOCKED BETWEEN CROSBY BLVD AND ADAMS ST DUE TO 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.

IssuedProductOfficeLasted
Jun 21, 1:11 PM EDTSevere Thunderstorm WatchSPC10 hr

The nearest sounding before it

Albany, NY (KALY), launched 12:00Z, 10.3 hours before the alert went out and 163 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 2021-06-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 524 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 2021-06-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 162 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
524 J/kg
Mixed-layer CIN
-118 J/kg
Mixed-layer LCL
990 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
162 m²/s²
0-3 km storm-relative helicity
192 m²/s²
Significant tornado parameter
0.2
Supercell composite
2.4

Open this sounding in Storm Lab

The text

As transmitted.

430 
WUUS51 KALY 212218
SVRALY
NYC041-043-212315-
/O.NEW.KALY.SV.W.0036.210621T2218Z-210621T2315Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Albany NY
618 PM EDT Mon Jun 21 2021

The National Weather Service in Albany has issued a

* Severe Thunderstorm Warning for...
  Northwestern Hamilton County in eastern New York...
  Northern Herkimer County in eastern New York...

* Until 715 PM EDT.

* At 617 PM EDT, severe thunderstorms were located along a line
  extending from 7 miles north of Lowville to near Forestport, moving
  northeast at 40 mph.

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

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Old Forge, Inlet, Brown Tract Pond Campground, Limekiln Lake
  Campground, Big Moose, Nicks Lake Campground, Eighth Lake
  Campground, Eagle Bay, Forked Lake Public Campground, McKeever,
  Raquette Lake, Golden Beach Campground, Alger Island Public
  Campground, Eagle Nest, Little Rapids, Beaver River, Minnehaha,
  Carter Station, Quaker Beach and First Lake.

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 4405 7506 4409 7466 4380 7444 4346 7509
      4410 7517
TIME...MOT...LOC 2217Z 227DEG 34KT 4389 7547 4352 7517 

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

DBT
2 follow-up statements
599 
WWUS51 KALY 212253
SVSALY

Severe Weather Statement
National Weather Service Albany NY
653 PM EDT Mon Jun 21 2021

NYC041-043-212315-
/O.CON.KALY.SV.W.0036.000000T0000Z-210621T2315Z/
Hamilton NY-Herkimer NY-
653 PM EDT Mon Jun 21 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 715 PM EDT
FOR NORTHWESTERN HAMILTON AND NORTHEASTERN HERKIMER COUNTIES...

At 653 PM EDT, severe thunderstorms were located along a line
extending from 8 miles south of Star Lake to near Raquette Lake,
moving northeast at 50 mph.

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

SOURCE...Radar indicated.

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

Locations impacted include...
Inlet, Brown Tract Pond Campground, Limekiln Lake Campground, Big
Moose, Eighth Lake Campground, Eagle Bay, Forked Lake Public
Campground, Raquette Lake, Golden Beach Campground, Alger Island
Public Campground, Eagle Nest, Little Rapids, Beaver River, Quaker
Beach, First Lake, Sabattis, Partlow, Robinwood, Sagamore and
Brandreth.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4405 7506 4409 7466 4380 7444 4346 7509
      4375 7490
TIME...MOT...LOC 2253Z 233DEG 42KT 4404 7501 4385 7464 

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

DBT
217 
WWUS51 KALY 212306
SVSALY

Severe Weather Statement
National Weather Service Albany NY
706 PM EDT Mon Jun 21 2021

NYC041-043-212315-
/O.EXP.KALY.SV.W.0036.000000T0000Z-210621T2315Z/
Hamilton NY-Herkimer NY-
706 PM EDT Mon Jun 21 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN HAMILTON AND
NORTHEASTERN HERKIMER COUNTIES WILL EXPIRE AT 715 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.

A Severe Thunderstorm Watch remains in effect until 900 PM EDT for
eastern New York.

Remember, a Severe Thunderstorm Warning still remains in effect for
Hamilton County and southern Herkimer County until 730 pm.

Remember, a Tornado Warning still remains in effect for central 
Herkimer and southwestern Hamilton Counties until 715 pm.

LAT...LON 4405 7506 4409 7466 4380 7444 4346 7509
      4375 7490
TIME...MOT...LOC 2305Z 227DEG 34KT 4412 7490 4393 7453 

$$

DBT

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 21, 5:14 AM EDTSpecial Weather StatementALYFulton31 min
Jun 21, 8:12 AM EDTSpecial Weather StatementALYHerkimer33 min
Jun 21, 2:21 PM EDTSpecial Weather StatementALYHamilton, Herkimer39 min
Jun 21, 2:33 PM EDTSevere Thunderstorm WarningALYHamilton, Herkimer42 min
Jun 21, 2:56 PM EDTSpecial Weather StatementALYHerkimer49 min
Jun 21, 3:03 PM EDTSevere Thunderstorm WarningALYHamilton42 min
Jun 21, 3:16 PM EDTAreal Flood AdvisoryALYHamilton, Herkimer91 min
Jun 21, 3:34 PM EDTSevere Thunderstorm WarningALYHamilton, Warren41 min
Jun 21, 3:36 PM EDTSpecial Weather StatementALYHerkimer39 min
Jun 21, 3:41 PM EDTSevere Thunderstorm WarningALYHamilton34 min
Jun 21, 3:48 PM EDTSpecial Weather StatementALYOneida42 min
Jun 21, 3:52 PM EDTAreal Flood AdvisoryALYHamilton61 min
Jun 21, 4:05 PM EDTSpecial Weather StatementALYHamilton40 min
Jun 21, 4:14 PM EDTSevere Thunderstorm WarningALYHamilton, Warren46 min
Jun 21, 4:22 PM EDTFlash Flood WarningALYHamilton44 min
Jun 21, 4:29 PM EDTSpecial Weather StatementALYWarren31 min
Jun 21, 4:37 PM EDTSevere Thunderstorm WarningALYWarren, Washington23 min
Jun 21, 4:48 PM EDTSevere Thunderstorm WarningALYWarren, Washington42 min
Jun 21, 4:51 PM EDTSpecial Weather StatementALYHamilton24 min
Jun 21, 5:03 PM EDTSevere Thunderstorm WarningALYWarren, Washington27 min
Jun 21, 5:12 PM EDTSpecial Weather StatementALYWashington33 min
Jun 21, 5:15 PM EDTAreal Flood AdvisoryALYWarren, Washington69 min
Jun 21, 5:21 PM EDTSevere Thunderstorm WarningALYWarren, Washington39 min
Jun 21, 5:50 PM EDTAreal Flood AdvisoryALYWashington55 min
Jun 21, 5:54 PM EDTSevere Thunderstorm WarningALYWashington36 min
Jun 21, 6:28 PM EDTSevere Thunderstorm WarningALYFulton, Hamilton, Herkimer62 min
Jun 21, 6:46 PM EDTTornado WarningALYFulton, Hamilton, Herkimer29 min
Jun 21, 7:22 PM EDTSpecial Weather StatementALYWarren23 min
Jun 21, 7:28 PM EDTSevere Thunderstorm WarningALYFulton, Hamilton, Saratoga, Warren62 min
Jun 21, 7:46 PM EDTSpecial Weather StatementALYMontgomery44 min
Jun 21, 7:55 PM EDTSpecial Weather StatementALYWarren50 min
Jun 21, 7:57 PM EDTSevere Thunderstorm WarningALYWarren, Washington34 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.