A prolific waterspout outbreak happened on cold front passage along the Istrian coast of Croatia in the afternoon of September 29. At least 5 waterspouts were recorded by storm chaser Marko Korošec with more recorded by other storm chasers in the area. The envrionment was prime for waterspouts with sea surface temperatures around 22-23 °C and very steep low level lapse rates.  A possible waterspout caused some minor damage in Piran, Slovenia, just north of the main outbreak area with damage to the Marine Biology Station and some other buildings in the area.

Waterspout off the coast of Istria near Novigrad. Photo: Marko Korošec.

Additional reports on the waterspout outbreak:

  1. Waterspouts in Rovinj, Croatia: http://www.istramet.com/pijavice-kod-rovinja-u-umagu-more-izbacilo-uginulog-dupina/
  2. Funnel cloud in Pula, Croatia: http://www.istramet.com/danas-najvise-kise-u-puli-zabiljezen-i-funnel-cloud/
  3. Possible waterspout damage in Piran, Slovenia: http://www.24ur.com/dan-po-neurju-toplo-morje-se-pospesilo-nastanek-vodne-trombe.html