spring storm
Refers to stormy weather, strong winds, or rough seas that occur in spring, often associated with the seasonal transition. Compare 春嵐 (はるあらし), which is a more common synonym.
See also: 春嵐
The fishing boats returned to port because of the spring storm.
At this time of year, spring storms are common and mountain weather can change suddenly.
Compound of 春 (はる, 'spring') and 荒れ (あれ, 'roughness, storminess', the noun form of verb 荒れる). The exact historical derivation is uncertain, but the word transparently describes rough spring weather.