{"id":2954,"date":"2021-12-09T11:29:00","date_gmt":"2021-12-09T09:29:00","guid":{"rendered":"https:\/\/projekti.pmfst.unist.hr\/floods\/storm-surges\/?p=2954"},"modified":"2025-06-27T17:01:29","modified_gmt":"2025-06-27T15:01:29","slug":"episode-26-8-december-2021","status":"publish","type":"post","link":"https:\/\/projekti.pmfst.unist.hr\/floods\/storm-surges\/episode-26-8-december-2021\/","title":{"rendered":"Episode 26, 8 December 2021"},"content":{"rendered":"\t\t
\n\t\t\t\t\t\t
\n\t\t\t\t\t\t
\n\t\t\t\t\t
\n\t\t\t
\n\t\t\t\t\t\t
\n\t\t\t\t
\n\t\t\t\t\t

Episode 26, 8 December 2021<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
\n\t\t\t\t\t\t
\n\t\t\t\t\t
\n\t\t\t
\n\t\t\t\t\t\t
\n\t\t\t\t
\n\t\t\t\t\t

Analysis<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
\n\t\t\t\t
\n\t\t\t\t\t\t\t
\n\t\t\t
<\/div>\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
\n\t\t\t\t
\n\t\t\t\t\t\t\t\t\t

Description<\/b><\/p>


<\/b><\/p>\n

Meteorological background<\/u><\/p>\n

From 26 November to 12 December, a series of cyclones crossed the Adriatic, supported by a persistent upper-level trough. On 6\u20137 December, the deep cyclone \u2018Barra\u2019 formed over the Atlantic, with central pressure dropping to 960 hPa on 7 December. Barra’s frontal system reached Europe on 7 December, triggering leeward cyclogenesis in the Gulf of Lion that night. By 8 December, this cyclone intensified in the Gulf of Genoa before moving towards the Adriatic, while Barra remained over the North Sea, generating strong to gale-force southeasterly winds across the Adriatic.<\/p>


<\/p>\n

Sea-level evolution<\/u><\/p>\n

On 8 December 2021, at 23:00 UTC, sea level in Bakar rose to 97 cm above the long-term average. The sea-level maximum peaked shortly before the daily tidal <\/i>maximum, which contributed 10 cm. Synoptic component<\/i>, driven by a Mediterranean cyclone and Atlantic pressure gradient, contributed 46 cm to the overall maximum. Although series of disturbances crossed the Adriatic in period before the flood, no wide-basin seiches (~21.2 hours) were triggered. Therefore, synoptic component<\/i> was mainly driven by a storm surge.<\/p>\n

The remaining sea-level rise resulted from processes acting on other time scales (refer to Figure 1 in the Introduction for detailed explanations). High-frequency oscillations<\/i> contributed 7 cm, planetary-scale variability<\/i> added 18 cm, and long-term sea-level change<\/i> added 16 cm.<\/p>


<\/p>\n

During this flooding episode, all processes contributed positively, with synoptic component<\/i> having the largest impact.
<\/strong><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

\n\t\t\t\t
\n\t\t\t\t\t

Newspaper reports<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
\n\t\t\t\t
\n\t\t\t\t\t\t\t\t\t

Here is an excerpt from reports about the flood from Novi list<\/em><\/strong>.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

\n\t\t\t\t\t\t
\n\t\t\t\t\t
\n\t\t\t
\n\t\t\t\t\t\t
\n\t\t\t\t
\n\t\t\t\t\t\t\t\t\t\t\t\t
\n\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\"Novi\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t
Novi List, 10 December 2021<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t
\n\t\t\t
\n\t\t\t\t\t\t
\n\t\t\t\t
\n\t\t\t\t\t\t\t\t\t

Stormy sirocco wind lifts cobblestones and moves cars in the Rab waterfront<\/em><\/strong>\u00a0<\/span><\/p>

RAB >> Waves driven by stormy Sirocco wind flooded the Municipium Arba square during the night and water entered stores and restaurants. Some boats ended up on the shore, and in the parking lot on the city shore, near Dorka Park, the force of the sea lifted paving stones and moved cars. Fortunately, workers from the municipal company “Dundovo” had been working since the early morning to remove scattered cobblestones from the road so that it was passable again relatively quickly. Firefighters from the Rab Volunteer Fire Brigade (DVD Rab) were also on site with their pumps to help the owners of the flooded properties. On parts of the Barbat promenade, gravel from the beaches covered the asphalt, and in Grpa, the wind blew down a telephone pole.<\/em><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

\n\t\t\t\t
\n\t\t\t\t\t\t\t\t\t

Other online articles mention that the strong winds led to the disruption of many ferry and catamaran routes, especially in the middle and southern Adriatic. On the island of Rab, many stores and restaurants on the coast were flooded, boats were washed ashore, while the strong surf lifted pressure vessels and displaced cars. In Split, the wind felled numerous trees that fell on vehicles and electricity pylons, leading to dozens of firefighting operations throughout the day.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

\n\t\t\t\t
\n\t\t\t\t\t

For more information, see the links below<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
\n\t\t\t\t
\n\t\t\t\t\t\t\t\t\t

MorskiHR, 9 December 2021<\/a><\/p>

Dalmacija Danas, 9 December 2021<\/a><\/p>

Radio Dalmacija, 9 December 2021<\/a><\/p>

Hrvatska Danas, 9 December 2021<\/a><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"

Sea-level series for the flood of 8 December 2021: measured (black), tide (green), combined long-period component and mean sea-level changes (grey), synoptic component (purple), and local processes (blue). The inset figure shows the contributions (cm) of the five sea-level components to the maximum measured sea level.<\/p>\n","protected":false},"author":1,"featured_media":4409,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[23],"tags":[],"class_list":["post-2954","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-storm-surge","entry"],"_links":{"self":[{"href":"https:\/\/projekti.pmfst.unist.hr\/floods\/storm-surges\/wp-json\/wp\/v2\/posts\/2954","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/projekti.pmfst.unist.hr\/floods\/storm-surges\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/projekti.pmfst.unist.hr\/floods\/storm-surges\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/projekti.pmfst.unist.hr\/floods\/storm-surges\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/projekti.pmfst.unist.hr\/floods\/storm-surges\/wp-json\/wp\/v2\/comments?post=2954"}],"version-history":[{"count":60,"href":"https:\/\/projekti.pmfst.unist.hr\/floods\/storm-surges\/wp-json\/wp\/v2\/posts\/2954\/revisions"}],"predecessor-version":[{"id":4604,"href":"https:\/\/projekti.pmfst.unist.hr\/floods\/storm-surges\/wp-json\/wp\/v2\/posts\/2954\/revisions\/4604"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/projekti.pmfst.unist.hr\/floods\/storm-surges\/wp-json\/wp\/v2\/media\/4409"}],"wp:attachment":[{"href":"https:\/\/projekti.pmfst.unist.hr\/floods\/storm-surges\/wp-json\/wp\/v2\/media?parent=2954"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/projekti.pmfst.unist.hr\/floods\/storm-surges\/wp-json\/wp\/v2\/categories?post=2954"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/projekti.pmfst.unist.hr\/floods\/storm-surges\/wp-json\/wp\/v2\/tags?post=2954"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}