Summary of the Impending Storm in Sicily and Calabria (January 19-20)
This text details a meaningful and possibly damaging storm system expected to impact Sicily and calabria, Italy, between January 19th and 20th. Here’s a breakdown of the key points:
1. Storm Formation & Movement:
* Origin: The storm will form as a deep low-pressure system originating in the Algerian hinterland, fueled by interaction with the subtropical jet stream.
* Path: It will move rapidly towards the Sicily and Sardinia Channels but will stall due to a blocking high-pressure system over Central Europe.
* Timing: The low-pressure system will fully develop between the evening of sunday, January 18th and Monday, January 19th.
2. Intense Pressure Gradient & Winds:
* Baric Contrast: A massive pressure difference – over 40 hPa – will exist between the low-pressure system (below 992 hPa) and a high-pressure system over Eastern Europe (over 1040 hPa).
* Winds: This will generate strong eastern winds (Sirocco and Levante) across Sicily, with gusts exceeding 100 km/h, potentially reaching 120 km/h along the southern and eastern coasts. Mountainous areas like Etna could experience gusts over 150 km/h.
* Calabria: Calabria, particularly the Tyrrhenian side, will also experience strong eastern winds, potentially extending to the Aeolian Islands.
3. Dangerous Sea Conditions:
* Wave Generation: The sustained eastern wind over the Ionian Sea (with a fetch of 750km) will generate exceptionally high waves.
* Wave Height: Significant waves of 6-7 meters are expected, with maximum heights potentially exceeding 10 meters if the strong winds persist for at least 26 hours.
* storm Surge: The most intense storm surges are predicted along the Ionian coasts of Sicily (from the Strait of Messina to Capo Passero) and Calabria (Reggio, Catanzaro, and Crotone provinces).
4. Potential Impacts & Comparisons:
* Coastal Damage: The storm surge and large waves pose a significant risk of damage to seafront infrastructure and accelerated coastal erosion. Areas lacking natural barriers (dunes) are particularly vulnerable.
* Severity: The storm is being compared to the event of January 13, 2009, which caused serious damage along the Ionian coasts of Sicily and Calabria.
In essence, this is a high-impact weather event with the potential for significant damage due to strong winds, large waves, and storm surges. the critical period is expected to be Monday night and Tuesday morning.