Alert archive / New York / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 26, NWS Albany, NY

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

NWS Albany, NY issued this severe thunderstorm warning at Jun 21, 2021, 2:33 PM EDT for Hamilton County, Herkimer County, New York. It was in force for 42 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 21, 2021, 2:33 PM EDT (18:33 UTC)
Expired
Jun 21, 2021, 3:15 PM EDT
In force
42 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), 80 km from the middle of the area, began a volume at 18:33 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.

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, 6.6 hours before the alert went out and 154 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.

910 
WUUS51 KALY 211833
SVRALY
NYC041-043-211915-
/O.NEW.KALY.SV.W.0026.210621T1833Z-210621T1915Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Albany NY
233 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 315 PM EDT.

* At 232 PM EDT, severe thunderstorms were located along a line
  extending from 9 miles southwest of Oswegatchie to 15 miles
  northeast of Lowville to near Highmarket, moving east at 55 mph.

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

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Speculator, Old Forge, Inlet, Blue Mountain Lake, Lake Eaton
  Campground, 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, Long Lake, Eagle
  Nest, Little Rapids and Beaver River.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Persons in campgrounds should consider seeking sturdy shelter until
this storm passes. Remember, lightning can strike out to 15 miles
from the parent thunderstorm. If you can hear thunder, you are close
enough to be struck by lightning. Move to safe shelter now!

Torrential rainfall is occurring with these storms, 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 4405 7433 4351 7463 4354 7510 4410 7517
      4405 7506 4411 7432
TIME...MOT...LOC 1832Z 258DEG 48KT 4411 7523 4392 7525 4362 7549 

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

KSL
2 follow-up statements
339 
WWUS51 KALY 211853
SVSALY

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

NYC041-043-211915-
/O.CON.KALY.SV.W.0026.000000T0000Z-210621T1915Z/
Hamilton NY-Herkimer NY-
253 PM EDT Mon Jun 21 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 315 PM EDT
FOR NORTHWESTERN HAMILTON AND NORTHERN HERKIMER COUNTIES...

At 250 PM EDT, severe thunderstorms were located along a line
extending from near Star Lake to 11 miles northwest of Big Moose to 8
miles northwest of McKeever, moving east at 50 mph.

Another potentially severe thunderstorm was located 10 miles 
southeast of Old Forge, moving northeast at 30 mph.

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

SOURCE...Radar indicated.

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

Locations impacted include...
Speculator, Old Forge, Inlet, Blue Mountain Lake, Lake Eaton
Campground, 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, Long Lake, Eagle Nest,
Little Rapids and Beaver River.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 4405 7433 4351 7463 4354 7510 4410 7517
      4405 7506 4411 7432
TIME...MOT...LOC 1850Z 255DEG 45KT 4416 7499 4397 7501 4367 7525 

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

DBT
978 
WWUS51 KALY 211909
SVSALY

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

NYC041-043-211918-
/O.EXP.KALY.SV.W.0026.000000T0000Z-210621T1915Z/
Hamilton NY-Herkimer NY-
309 PM EDT Mon Jun 21 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN HAMILTON AND
NORTHERN HERKIMER COUNTIES WILL EXPIRE AT 315 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
southwestern Hamilton County until 345 pm EDT.

LAT...LON 4405 7433 4351 7463 4354 7510 4410 7517
      4405 7506 4411 7432
TIME...MOT...LOC 1908Z 258DEG 48KT 4421 7467 4402 7469 4372 7493 

$$

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, 2:56 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, 6:18 PM EDTSevere Thunderstorm WarningALYHamilton, Herkimer57 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.