[PERSON]
Dr. Kriska György
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Situations
Mayfly swarms in Hungary
2 clusters · 2 sources · last updated
Latest: Mayfly swarming on the Danube attracts visitors in Hungary
In mid‑July 2026, massive swarms of non‑biting mayflies appeared over Lake Balaton. The insects formed bright evening clouds that confused regional weather radar, prompting scientists to advise tourists to reduce strong