Hail

Hailstones (ice) on ground after a storm

A piece of hail (called a hailstone) is a lump of ice that falls out of a storm cloud. About 5,000 hailstorms a year in the United States of America make hail 3/4 of an inch or bigger.[1]

The beginning of a hailstorm

A hailstone begins as a small water drop or a round snow pellet in a cloud.[1] The drop grows by collecting many cloud drops. The little drop is blown by a strong wind inside the cloud to where it meets with some extremely cold water drops. These supercooled drops are still liquid water even though the temperature is below freezing. When the little drop mixes with these extremely cold drops, they join, and the little drop has now become a hailstone.[1]

The little hailstone is thrown up inside the cloud, still collecting other cold drops. The hailstone gets bigger and bigger until it goes to the top of the cloud. Then, because there is no more wind, it falls back down through the cloud. While it is falling it gets even bigger as it bangs into more supercooled drops. If it goes down very fast it can hit the earth at up to 90 mph (144 kph), bouncing like popcorn.[1] If the hailstone hits dirt, it can actually bury itself.

Other Languages
Afrikaans: Hael
العربية: برد (هطول)
asturianu: Xarazu
Avañe'ẽ: Amandáu
Aymar aru: Chhijchhi
azərbaycanca: Dolu (yağıntı)
Bân-lâm-gú: Pha̍uh
беларуская: Град
беларуская (тарашкевіца)‎: Град
български: Градушка
bosanski: Grad (padavina)
català: Calamarsa
chiShona: Chivhuramabwe
Cymraeg: Cesair
Deutsch: Hagel
eesti: Rahe
Ελληνικά: Χαλάζι
English: Hail
español: Granizo
Esperanto: Hajlo
euskara: Txingor
فارسی: تگرگ
français: Grêle
galego: Sarabia
客家語/Hak-kâ-ngî: Pho̍k
한국어: 우박
հայերեն: Կարկուտ
hrvatski: Tuča
Ido: Grelo
Bahasa Indonesia: Hujan es
ᐃᓄᒃᑎᑐᑦ/inuktitut: ᓇᑕᖅᑯᕐᓇᐃᑦ/nataqqurnait
íslenska: Haglél
italiano: Grandine
עברית: ברד
ಕನ್ನಡ: ಆಲಿಕಲ್ಲು
ქართული: სეტყვა
Kiswahili: Mvua ya mawe
kurdî: Zîpik
Кыргызча: Мөндүр
Latina: Grando
latviešu: Krusa
lietuvių: Kruša
Lingua Franca Nova: Graniza
lumbaart: Tempesta
magyar: Jégeső
Malagasy: Havandra
മലയാളം: ആലിപ്പഴം
मराठी: गार
მარგალური: კირცხი (ტაროსი)
Bahasa Melayu: Hujan batu
မြန်မာဘာသာ: မိုးသီး
Nāhuatl: Texihuitl
Nederlands: Hagel (neerslag)
नेपाली: असिना
日本語:
norsk: Hagl
norsk nynorsk: Hagl
occitan: Granissa
олык марий: Шолем
oʻzbekcha/ўзбекча: Doʻl
polski: Grad
português: Granizo
română: Grindină
Runa Simi: Chikchi
русский: Град
саха тыла: Тобурах
Scots: Hail
shqip: Breshëri
sicilianu: Gragnola
slovenčina: Krúpa (ľadovec)
slovenščina: Toča
српски / srpski: Град (падавина)
srpskohrvatski / српскохрватски: Grad (padavina)
suomi: Rae
svenska: Hagel
Tagalog: Hail
татарча/tatarça: Боз яву
తెలుగు: వడగళ్ళు
тоҷикӣ: Жола
Türkçe: Dolu
українська: Град
vepsän kel’: Ragiž
Tiếng Việt: Mưa đá
walon: Gurzea
文言:
吴语:
粵語:
Zazaki: Torge
žemaitėška: Kroša
中文: 冰雹