Short answers, pulled from the story.
The term sirocco derives from the Arabic verbal noun šurūq meaning East or aš-šarq. The Roman poet Horace wrote about a wind called Atabulus near Trevico in Apulia during his journey to Brundisium in 37 BC which connects to this modern name.
Warm dry tropical air masses originate in the Arabian or Sahara deserts before being pulled northward by low-pressure cells. These pressure systems move eastward across the Mediterranean Sea creating a specific atmospheric dynamic that mixes hot continental air with cooler wetter maritime cyclone air as they collide.
The phenomenon extends only to southern European territories into other parts of the continent. Duration varies significantly from half a day to several days depending on atmospheric conditions while peak intensity reaches speeds up to hurricane force levels during autumn and spring months.
Observations link health problems to either the heat and dust arriving from African coastal zones or the cool dampness found further north in Europe. The combination of airborne particles and temperature shifts creates discomfort for sensitive individuals even though residents attribute various ailments without always identifying specific medical causes.
Rising tides combine with strong sirocco winds to produce the acqua alta phenomenon in the Venetian Lagoon where water levels surge higher than normal creating flooding risks throughout the historic city streets. Venice stands uniquely vulnerable because its low elevation makes it susceptible to any rise in sea level.
Anchovies caught in the Gulf of Trieste near Barcola appear only during sirocco conditions despite being highly sought after delicacies. Georges Desrues documented this relationship in his 2020 publication Triest - Servus Magazin on page 73 stating that fishermen rely entirely on the presence of the sirocco to access these valuable catches.