When thunder and lightning occur during a snowstorm, meteorologists refer to the phenomenon as thundersnow. Thundersnow can be found where there is relatively strong instability and abundant ...

To his happy surprise, it turns out this weekend’s storm was a rare “thundersnow” event in which the blizzard was punctuated by occasional bursts of lightning. The Weather Channel itself has ...

If the charge builds up sufficiently, a lightning strike occurs, accompanied by the rumbles of thunder. Thundersnow is indicative of heavy snowfall -- sometimes reaching rates of two to three ...

A rare weather phenomenon rumbled across several eastern and central U.S. states this weekend as Arctic air continues to bring heavy snow and freezing temperatures to millions of Americans.

Thundersnow happens when strong upward motion within a storm system generates lightning. Snow absorbs more sound than rain, people close to the lightning strike may hear a muffled boom ...

However, police said that what people were actually hearing was the weather phenomenon known as "thundersnow". Two "extraordinarily loud" thunder claps were heard over the capital just before 05:00.

This caused an “atmospheric instability” to develop, leading some places to see and hear lightning and thunder.

If you are outside, seek refuge in a car or grounded building when lightning or thunder begins. • If you are caught outside away from a building or car, stay clear of water bodies and tall ...

Former U.S. Ambassador Niels Marquardt has a stake in what's happening with USAID. A Lewis and Clark College graduate, he's now Diplomat in Residence at the college. He joined Eye on Northwest ...