Alert archive / New York / Lake Effect Snow Warnings in 2021
Lake Effect Snow Warning 2, NWS Albany, NY
NWS Albany, NY issued this lake effect snow warning at Jan 21, 2021, 4:09 PM EST for Hamilton County, Herkimer County, New York. It took effect at Jan 21, 2021, 7:00 PM EST. It was in force for 18 hr. 8 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Jan 21, 2021, 4:09 PM EST (21:09 UTC)
- In effect from
- Jan 21, 2021, 7:00 PM EST
- Expired
- Jan 22, 2021, 12:51 PM EST
- In force
- 18 hr
- Issued by
- NWS Albany, NY
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 21:11 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 |
|---|---|---|---|
| Jan 22, 6:12 AM EST | SNOW 6 | Inlet, NY | |
| Jan 22, 6:37 AM EST | SNOW 5 | Piseco, NY | WEATHERNET6 |
| Jan 22, 6:55 AM EST | SNOW 4.6 | 2 Wsw Lake Pleasant, NY | 24-HOUR SNOWFALL. |
| Jan 22, 7:00 AM EST | SNOW 3 | Sse Long Lake, NY | 24-HOUR SNOWFALL. |
| Jan 22, 7:00 AM EST | SNOW 4 | 10 Ssw Speculator, NY | 24-HOUR SNOWFALL. |
| Jan 22, 7:07 AM EST | SNOW 1.5 | Indian Lake, NY | WEATHERNET6 |
| Jan 22, 7:50 AM EST | SNOW 2.6 | Indian Lake, NY | 24-HOUR SNOWFALL. |
| Jan 22, 8:50 AM EST | HEAVY SNOW 8.5 | 1 Sw Old Forge, NY | SNOW SINCE 9PM LAST EVENING. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Albany, NY (KALY), launched 12:00Z, 9.2 hours before the alert went out and 119 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
- 1286 m above ground
- 0-6 km bulk shear
- 77 kt
- 0-1 km storm-relative helicity
- 242 m²/s²
- 0-3 km storm-relative helicity
- 315 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
680
WWUS41 KALY 212109
WSWALY
URGENT - WINTER WEATHER MESSAGE
National Weather Service Albany NY
409 PM EST Thu Jan 21 2021
NYZ032-033-221100-
/O.UPG.KALY.WW.Y.0005.000000T0000Z-210122T1800Z/
/O.NEW.KALY.LE.W.0002.210122T0000Z-210123T0000Z/
Northern Herkimer-Hamilton-
Including the cities of Big Moose, Eagle Bay, McKeever,
Old Forge, Atwell, Nobleboro, Northwood, Long Lake, Sabattis,
Hoffmeister, and Wells
409 PM EST Thu Jan 21 2021
...LAKE EFFECT SNOW WARNING IN EFFECT FROM 7 PM THIS EVENING TO
7 PM EST FRIDAY...
* WHAT...Heavy lake effect snow expected. Total snow accumulations
of 5 to 9 inches.
* WHERE...Northern Herkimer and Hamilton Counties.
* WHEN...From 7 PM this evening to 7 PM EST Friday.
* IMPACTS...Travel could be very difficult.
* ADDITIONAL DETAILS...Snow rates up between one and two inches
per hour at times are possible, especially tonight into Friday
morning.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency.
&&
Experimental content below...do not use operationally
Please see below links for more information on this experiment
http://www.weather.gov/buf/polygon_pdd
http://www.nws.noaa.gov/os/notification/
pns15lake_effect_snowaaa.htm
To view the experimental polygons please see:
http://www.weather.gov/buf/lespolygon
COORD...4404 7492 4408 7515 4354 7511 4343 7477
4356 7478 4374 7495
TIME Y21M01D22T0000Z-Y21M01D22T0900Z
$$
VTZ013-221100-
/O.NEW.KALY.WW.Y.0006.210122T0000Z-210123T0000Z/
Bennington-
Including the cities of Stamford, Bennington,
Woodford State Park, and Pownal
409 PM EST Thu Jan 21 2021
...WINTER WEATHER ADVISORY IN EFFECT FROM 7 PM THIS EVENING TO
7 PM EST FRIDAY...
* WHAT...Snow expected. Total snow accumulations of 3 to 5 inches
with up to 5 to 6 inches possible above 1500 feet.
* WHERE...Bennington County.
* WHEN...From 7 PM this evening to 7 PM EST Friday.
* IMPACTS...Plan on slippery travel conditions.
* ADDITIONAL DETAILS...Periods of moderate to heavy snow will be
possible mainly after midnight tonight through early afternoon
tomorrow.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Slow down and use caution while traveling.
&&
$$3 follow-up statements
155
WWUS41 KALY 220240
WSWALY
URGENT - WINTER WEATHER MESSAGE
National Weather Service Albany NY
940 PM EST Thu Jan 21 2021
NYZ032-033-221045-
/O.CON.KALY.LE.W.0002.000000T0000Z-210123T0000Z/
Northern Herkimer-Hamilton-
Including the cities of Big Moose, Eagle Bay, McKeever,
Old Forge, Atwell, Nobleboro, Northwood, Long Lake, Sabattis,
Hoffmeister, and Wells
940 PM EST Thu Jan 21 2021
...LAKE EFFECT SNOW WARNING REMAINS IN EFFECT UNTIL 7 PM EST
FRIDAY...
* WHAT...Heavy lake effect snow expected. Total snow
accumulations of 5 to 9 inches.
* WHERE...Northern Herkimer and Hamilton Counties.
* WHEN...Until 7 PM EST Friday.
* IMPACTS...Travel could be very difficult.
* ADDITIONAL DETAILS...Snowfall rates up between one and two
inches per hour at times are possible, especially tonight into
Friday morning.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency.
&&
Experimental content below...do not use operationally
Please see below links for more information on this experiment
http://www.weather.gov/buf/polygon_pdd
http://www.nws.noaa.gov/os/notification/
pns15lake_effect_snowaaa.htm
To view the experimental polygons please see:
http://www.weather.gov/buf/lespolygon
COORD...4362 7467 4370 7481 4371 7493 4378 7497
4376 7513 4354 7511 4350 7500 4343 7495 4340 7469
4352 7459
TIME Y21M01D22T0900Z-Y21M01D23T0000Z
$$
VTZ013-221045-
/O.CON.KALY.WW.Y.0006.000000T0000Z-210123T0000Z/
Bennington-
Including the cities of Stamford, Bennington,
Woodford State Park, and Pownal
940 PM EST Thu Jan 21 2021
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 PM EST
FRIDAY...
* WHAT...Snow expected. Total snow accumulations of 3 to 5 inches
with up to 6 inches possible above 1500 feet.
* WHERE...Bennington County.
* WHEN...Until 7 PM EST Friday.
* IMPACTS...Plan on slippery travel conditions.
* ADDITIONAL DETAILS...Periods of moderate to heavy snow will be
possible mainly after midnight tonight through early afternoon
tomorrow.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Slow down and use caution while traveling.
&&
$$130
WWUS41 KALY 220844
WSWALY
URGENT - WINTER WEATHER MESSAGE
National Weather Service Albany NY
344 AM EST Fri Jan 22 2021
NYZ032-033-222200-
/O.CON.KALY.LE.W.0002.000000T0000Z-210123T0000Z/
Northern Herkimer-Hamilton-
Including the cities of Big Moose, Eagle Bay, McKeever,
Old Forge, Atwell, Nobleboro, Northwood, Long Lake, Sabattis,
Hoffmeister, and Wells
344 AM EST Fri Jan 22 2021
...LAKE EFFECT SNOW WARNING REMAINS IN EFFECT UNTIL 7 PM EST THIS
EVENING...
* WHAT...Heavy lake effect snow expected. Additional snow
accumulations of 3 to 6 inches in the most persistent snow
bands.
* WHERE...Northern Herkimer and Hamilton Counties.
* WHEN...Until 7 PM EST Friday.
* IMPACTS...Travel could be very difficult.
* ADDITIONAL DETAILS...Snowfall rates between one and two inches
per hour at times are possible.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency.
&&
Experimental content below...do not use operationally
Please see below links for more information on this experiment
http://www.weather.gov/buf/polygon_pdd
http://www.nws.noaa.gov/os/notification/
pns15lake_effect_snowaaa.htm
To view the experimental polygons please see:
http://www.weather.gov/buf/lespolygon
COORD...4377 7481 4384 7469 4409 7479 4408 7515
4398 7517 4343 7511 4340 7487 4323 7472 4338 7469
4346 7459
TIME Y21M01D22T0000Z-Y21M01D22T0600Z
COORD...4366 7461 4367 7469 4373 7468 4384 7490
4389 7513 4380 7515 4336 7509 4327 7472 4340 7466
4353 7469
TIME Y21M01D22T0600Z-Y21M01D22T1500Z
COORD...4366 7461 4365 7494 4361 7495 4373 7509
4362 7512 4342 7505 4336 7488 4331 7468 4342 7468
4344 7462
TIME Y21M01D22T1500Z-Y21M01D23T0000Z
$$
VTZ013-222200-
/O.CON.KALY.WW.Y.0006.000000T0000Z-210123T0000Z/
Bennington-
Including the cities of Stamford, Bennington,
Woodford State Park, and Pownal
344 AM EST Fri Jan 22 2021
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 PM EST THIS
EVENING...
* WHAT...Snow expected. Additional accumulations of 2 to 4 inches
with up to 6 inches possible above 1500 feet.
* WHERE...Bennington County.
* WHEN...Until 7 PM EST Friday.
* IMPACTS...Plan on slippery travel conditions.
* ADDITIONAL DETAILS...Periods of moderate to heavy snow will be
possible through the afternoon.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Slow down and use caution while traveling.
&&
$$368 WWUS41 KALY 221751 WSWALY URGENT - WINTER WEATHER MESSAGE National Weather Service Albany NY 1251 PM EST Fri Jan 22 2021 NYZ032-033-221900- /O.CAN.KALY.LE.W.0002.000000T0000Z-210123T0000Z/ Northern Herkimer-Hamilton- Including the cities of Big Moose, Eagle Bay, McKeever, Old Forge, Atwell, Nobleboro, Northwood, Long Lake, Sabattis, Hoffmeister, and Wells 1251 PM EST Fri Jan 22 2021 ...LAKE EFFECT SNOW WARNING IS CANCELLED... Heavy lake effect snow has ended. Occasional snow showers are expected through Saturday morning. $$ VTZ013-221900- /O.CAN.KALY.WW.Y.0006.000000T0000Z-210123T0000Z/ Bennington- Including the cities of Stamford, Bennington, Woodford State Park, and Pownal 1251 PM EST Fri Jan 22 2021 ...WINTER WEATHER ADVISORY IS CANCELLED... Steady snow that prompted the advisory has ended. Occasional snow showers are expected through saturday morning. $$
The office that day
Everything else NWS Albany, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 21, 3:36 AM EST | Winter Weather Advisory | ALY | Hamilton, Herkimer | 13 hr |
Nearby
Lake Effect Snow Warnings in New York, 2021Every lake effect snow 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.