Enormous balls of 'gorilla hail' pelt Kansas and Missouri

Massive chunks of hail pelted parts of Kansas and Missouri on Wednesday night, bringing traffic to a standstill along the major road the Interstate 70 and unleashing a possible tornado, as meteorologists urged residents to stay indoors.

At least one unconfirmed tornado was reported on Wednesday in Alta Vista, Kansas, according to media reports.

The National Weather Service in the city of Topeka, Kansas, said coin-sized hail and wind gusts up to 60 mph were expected across northern Kansas overnight until 6 am on Thursday.

Descriptions of the hail ranged from the size of golf balls and apples to baseballs.

Alex Sosnowski, senior meteorologist at AccuWeather, previously said the predicted hail was deemed “gorilla hail” because it had the potential to be so big.

“Gorilla hail” is a term coined by Reed Timmer, a storm chaser who calls himself an extreme meteorologist, Mr Sosnowski said.

“When you get up to tennis ball, baseball-sized or God forbid softball-sized, that can do a tremendous amount of damage, and if you get hit in the head, that could be fatal,” Mr Sosnowski said.

Traffic came to a standstill for a time on part of Interstate 70 because of the falling hail, the National Weather Service said on X, formerly known as Twitter.

Images of large hail chunks and at least one cracked windshield were shown on local channel KSHB-TV.

Late on Wednesday, forecasters issued tornado warnings in the areas around Topeka and to the north, while severe thunderstorm warnings were issued northeast of Kansas City in Missouri.

“If you are in this warning, get away from windows and shelter inside now!!!” the National Weather Service posted on X, formerly known as Twitter.

The weather service said the storm had previously produced 8.9-centimetre chunks.

The weather service also issued a severe thunderstorm watch for parts of Illinois, Iowa, Missouri and Kansas through Thursday morning, after which forecasters said the storm will move to the east.