electric storm vs thunderstorm

electric storm and thunderstorm both are nouns.

Word	Noun	Adjective	Verb	Adverb
electric storm	Yes	No	No	No
thunderstorm	Yes	No	No	No

As nouns, electric storm and thunderstorm are synonyms defined as:

electric storm and thunderstorm: a storm resulting from strong rising air currents; heavy rain or hail along with thunder and lightning

Other synonyms of electric storm include electrical storm.

electric storm (noun)	thunderstorm (noun)
a storm resulting from strong rising air currents; heavy rain or hail along with thunder and lightning	a storm resulting from strong rising air currents; heavy rain or hail along with thunder and lightning