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What are the sources for WeatherOnline forecasts?


The WeatherOnline forecasts are created by using a MOS system developed in-house with the most current US weather services model data (GFS). The statistical methods of the Model-Output-Statistic (MOS)-System were developed in cooperation with the Meteorological Department of the University of Bonn.

What is a MOS-System?


A Model-Output-Statistic (MOS)-System combines the data of the weather forecast model and the locally recorded data for any given point by transforming the model data from a coarse grid to detailed small scale areas.
In order to do so, one needs a large volume of past model forecast data as well as the corresponding recorded data for any given location. The MOS-System relates these two sets of data in an optimized fashion allowing development of the local weather forecast by using the most current model forecast.

What are the time intervals used in the temperature and icons of the local forecasts?


The forecasted maximum temperature always refers to a 12hour window from 6am to 6om local time.
The forecasted minimum temperature always refers to the 12hour window from 6pm of the day before the forecast day to 6 am of the forecast day.
The weather icon for the morning refers to the time between 6am and 12pm local time, the icon for the afternoon is valid from 12am to 6pm local time and the evening icon refers to the time from 6pm to 12am local time.

How often are the current weather conditions and forecasts updated?


The current weather information as well as the satellite images are updated every 30 minutes whereas the radar images are being updated every 15 minutes.
The local weather forecasts as well as the weather charts are updated 8 times a day. The updates start at 2 am CEST or 3 am CEST depending on daylight saving time and continue on a three hourly bases.


Nearby Weather Stations - Chiavari Distance
Genova/Sestri 53.1 km
Giovi Pass 55.1 km
Sarzana/Luni 78.5 km
Piacenza 80.6 km
Parma 120.8 km
Linate Airport 125.9 km
Capo Mele 134.2 km
Albenga 135.9 km
Pisa 137.6 km
Cap Corse 144.2 km
Novara / Cameri 150.5 km
Monte Cimone 154.6 km
Orio al Serio Intl. Airport 155.1 km
Milan Malpensa Airport 158.6 km
Ghedi Air Base 161.8 km
Brescia Airport 166.2 km
Mondovì 167.1 km
Monte Malanotte 169.0 km
Monte Generoso 180.1 km
Stabio 182.1 km
L'Île-Rousse 190.3 km
Cuneo Intl. Airport 190.7 km
Lugano Airport 190.8 km
Turin / Bric della Croce 193.1 km
Bastia - Poretta Airport 194.6 km
Calvi/St Catherine 204.6 km
Turin-Aeritalia Airport 208.7 km
Locarno Airport 208.9 km
Villafranca 209.2 km
Torino/Caselle 209.7 km
Calamita 210.5 km
Monte Calamita 211.4 km
Locarno/Monti 212.4 km
Grono 213.7 km
Cimetta 215.2 km
Florence/Peretola 217.2 km
Bologna/Borgo 222.1 km
Vicosoprano 226.3 km
Alistro 226.4 km
Matro 234.2 km
Cevio 234.2 km
San Bernardino 236.7 km
Piz Corvatsch 237.1 km
Sils im Engadin/Segl 237.5 km
Kraftwerk Robbia 237.7 km
Comprovasco 239.3 km
Bernina 242.6 km
Nice 244.8 km
Monte Rosa-Plattje 246.1 km
Piz Martegnas 249.4 km
Gornergrat 250.4 km
Lago di Robièi 250.9 km
Samedan Airport 251.3 km
Piotta 252.0 km
Tinizong-Rona 252.2 km
Pian Rosa 252.7 km
Zermatt 256.6 km
Binn 257.9 km
Grosseto 259.6 km
Ferrara 262.2 km
Solenzara 263.8 km
Grächen 264.4 km
Ulrichen 265.6 km
Hospental 267.3 km
Disentis/Sedrun 267.7 km
Naetschen 268.1 km
Aosta Valley Airport 268.9 km
Valbella 269.1 km
Ajaccio Napoleon Bonaparte Airport 269.2 km
Eggishorn 269.2 km
Ilanz 270.3 km
Grimsel-Hospiz 270.6 km
Visp 273.3 km
Buffalora 276.8 km
Cannes 277.2 km
Paganella 277.2 km
Crap Masegn 277.9 km
Santa Maria Val Müstair 279.4 km
Davos 280.2 km
Chur-Ems 281.4 km
Weissfluhjoch 281.6 km
Evolène 282.1 km
Blatten 285.0 km
Elm 286.9 km
Jungfraujoch 287.1 km
Titlis 287.5 km
Scuol 292.2 km
Altdorf 293.0 km
Engelberg 293.4 km
Great St Bernard 293.8 km
Naluns / Schlivera 293.8 km
Schiers 294.5 km
Meiringen 294.9 km
Monte Argentario 295.4 km
Arezzo 296.9 km
Bad Ragaz Airport 297.2 km
Glarus 299.8 km
St. Valentin auf der Haide 300.4 km
Crans-Montana 300.5 km
Les Attelas 300.9 km