Thundersnow

snowthunder
Thundersnow, also known as a winter thunderstorm or a thundersnowstorm, is an unusual kind of thunderstorm with snow falling as the primary precipitation instead of rain.wikipedia
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Thunderstorm

thunderstormssevere thunderstormelectrical storm
Thundersnow, also known as a winter thunderstorm or a thundersnowstorm, is an unusual kind of thunderstorm with snow falling as the primary precipitation instead of rain.
They are usually accompanied by strong winds, heavy rain, and sometimes snow, sleet, hail, or, in contrast, no precipitation at all.

Precipitation

rainfallhydrometeorannual precipitation
Thundersnow, also known as a winter thunderstorm or a thundersnowstorm, is an unusual kind of thunderstorm with snow falling as the primary precipitation instead of rain.
Thundersnow is possible within a cyclone's comma head and within lake effect precipitation bands.

Snow

snowfallsnow covernival
Thundersnow, also known as a winter thunderstorm or a thundersnowstorm, is an unusual kind of thunderstorm with snow falling as the primary precipitation instead of rain.
In cases where there is a large amount of vertical growth and mixing the squall may develop embedded cumulonimbus clouds resulting in lightning and thunder which is dubbed thundersnow.

Lake-effect snow

lake effect snowlake effectlake-effect
Thundersnow, while relatively rare anywhere, is more common with lake-effect snow in the Great Lakes area of the United States and Canada, the midwestern United States, and the Great Salt Lake. A lake effect or ocean effect thunderstorm which is produced by cold air passing over relatively warm water; this effect commonly produces snow squalls over the Great Lakes
Lake-effect occurring when the air at 850 mbar is much colder than the water surface can produce thundersnow, snow showers accompanied by lightning and thunder (caused by larger amounts of energy available from the increased instability).

Extratropical cyclone

extratropicalextratropical transitionextratropical storm
It typically falls in regions of strong upward motion within the cold sector of an extratropical cyclone.
In mature extratropical cyclones, an area known as the comma head on the northwest periphery of the surface low can be a region of heavy precipitation, frequent thunderstorms, and thundersnows.

Lightning

lightning boltlightning strikelightning strikes
A heavy synoptic snowstorm that sustains strong vertical mixing which allows for favorable conditions for lightning and thunder to occur
However, it can also occur during dust storms, forest fires, tornadoes, volcanic eruptions, and even in the cold of winter, where the lightning is known as thundersnow.

Snowsquall

snow squallsnow squallsfrontal snowsqualls
A lake effect or ocean effect thunderstorm which is produced by cold air passing over relatively warm water; this effect commonly produces snow squalls over the Great Lakes
Extremely cold air over still warm water in early winter can even produce thundersnow, snow showers accompanied by lightning and thunder.

1993 Storm of the Century

Storm of the Century1993 SuperstormBlizzard of 1993
The 1991 Halloween blizzard, Superstorm of 1993, and White Juan are examples of such blizzards featuring thundersnow.
It brought in cold air along with heavy precipitation and hurricane-force winds which, ultimately, caused a blizzard over the affected area; this also included thundersnow from Georgia to Pennsylvania and widespread whiteout conditions.

White Juan

White Juan of 2004
The 1991 Halloween blizzard, Superstorm of 1993, and White Juan are examples of such blizzards featuring thundersnow.
Weather radar observations, as well as synoptic report, showed extensive thundersnow embedded within the blizzard; in the heaviest bands, accumulation rates exceeded 20 cm/h.

1991 Halloween blizzard

Halloween blizzardOctober 31 – November 3
The 1991 Halloween blizzard, Superstorm of 1993, and White Juan are examples of such blizzards featuring thundersnow.
As the storm system pushed its way northward, more communities in eastern Minnesota and northwestern Wisconsin began to experience similar conditions; and thundersnow occurred as far north as Duluth.

Rain

rainfallrainstormtorrential rain
Thundersnow, also known as a winter thunderstorm or a thundersnowstorm, is an unusual kind of thunderstorm with snow falling as the primary precipitation instead of rain.

Cumulonimbus cloud

cumulonimbusthundercloudcumulonimbus clouds
Thermodynamically, it is not different from any other type of thunderstorm, but the top of the cumulonimbus cloud is usually quite low.

Graupel

Snow pelletssmall hailsoft hail
In addition to snow, graupel or hail may fall.

Hail

hailstormhailstoneshailstone
In addition to snow, graupel or hail may fall.

Great Lakes

Great Lakethe Great LakesGreat Lakes region
Thundersnow, while relatively rare anywhere, is more common with lake-effect snow in the Great Lakes area of the United States and Canada, the midwestern United States, and the Great Salt Lake. A lake effect or ocean effect thunderstorm which is produced by cold air passing over relatively warm water; this effect commonly produces snow squalls over the Great Lakes

Great Salt Lake

Salt LakeGreat Salt Lake regionGreat Salt Lake, North Arm
Thundersnow, while relatively rare anywhere, is more common with lake-effect snow in the Great Lakes area of the United States and Canada, the midwestern United States, and the Great Salt Lake.

Halifax, Nova Scotia

HalifaxHalifax Regional MunicipalityHalifax, NS
Thundersnow also occurs in Halifax, Nova Scotia, sometimes several times per winter season.

Bozeman, Montana

BozemanBozeman, MTBozeman (MT)
Bozeman, Montana also sees thundersnow more often than average with these storms typically occurring in April or May.

Kanazawa

Kanazawa CityKanazawa City, IshikawaKanazawa MEA
It is also common around Kanazawa and the Sea of Japan, and even around Mount Everest.

Sea of Japan

East SeaJapanJapan Sea
It is also common around Kanazawa and the Sea of Japan, and even around Mount Everest.

Mount Everest

EverestMt. EverestSagarmartha (Mount Everest)
It is also common around Kanazawa and the Sea of Japan, and even around Mount Everest.

Mediterranean Sea

MediterraneanMediterranean coastMediterranean islands
Low pressure events in the eastern Mediterranean that originate from polar origin cause copious thundersnow occurrences during winter storms, especially over the elevated provinces of Israel, Palestine and Jordan, including Amman and Jerusalem.

Israel

🇮🇱IsraeliState of Israel
Low pressure events in the eastern Mediterranean that originate from polar origin cause copious thundersnow occurrences during winter storms, especially over the elevated provinces of Israel, Palestine and Jordan, including Amman and Jerusalem.

State of Palestine

PalestinePalestinianPalestinian state
Low pressure events in the eastern Mediterranean that originate from polar origin cause copious thundersnow occurrences during winter storms, especially over the elevated provinces of Israel, Palestine and Jordan, including Amman and Jerusalem.

Jordan

🇯🇴TransjordanJordanian
Low pressure events in the eastern Mediterranean that originate from polar origin cause copious thundersnow occurrences during winter storms, especially over the elevated provinces of Israel, Palestine and Jordan, including Amman and Jerusalem.