Monde

Amérique du Nord



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.


Stations météo à proximité - Napa Distance
Napa Aéroport 4.2 km
Buchanan Field (Aéroport) 31.5 km
Marin 31.5 km
Aéroport international d'Oakland 33.5 km
Petaluma Aéroport 35.9 km
Nut Tree (Aéroport) 37.4 km
Travis Air Force Base 39.0 km
Hayward Executive (Aéroport) 41.0 km
San Francisco (Aéroport) 41.2 km
San Carlos (Aéroport) 45.7 km
Eddie Andreini Sr. Airfield 51.8 km
Palo Alto Aéroport 51.9 km
Davis Aéroport 57.2 km
Moffett Federal Airfield 57.6 km
Santa Rose Airport 61.0 km
Livermore Municipal (Aéroport) 62.3 km
San José (Aéroport) 67.7 km
Reid- Hillview (Aéroport) 76.5 km
Sacramento (Aéroport) 80.8 km
Sacramento Executive (Aéroport) 88.7 km
Yuba 93.1 km
Watsonville Municipal (Aéroport) 97.2 km
Sacramento McClellan (Aéroport) 100.8 km
Chico Municipal (Aéroport) 100.9 km
Oroville Municipal (Aéroport) 102.2 km
South County Arpt Of Santa Clara County 104.1 km
Beale Air Force Base 107.0 km
Lincoln Aéroport 110.1 km
Sacramento Mather (Aéroport) 110.6 km
Red Bluff Municipal (Aéroport) 111.0 km
Aéroport régional de Monterey 111.4 km
Ukiah Aéroport 114.0 km
Stockton Metropolitan (Aéroport) 117.2 km
Salinas Municipal (Aéroport) 121.9 km
Hollister Aéroport 126.9 km
Redding Municipal (Aéroport) 131.8 km
Auburn Aéroport 138.9 km
Nevada 152.7 km
Modesto 153.2 km
Weaverville 163.9 km
Trinity Center 167.8 km
Placerville (Aéroport) 172.2 km
Mont Shasta 180.4 km
Blue Canyon 183.8 km
Castle (Aéroport) 198.0 km
Merced (Aéroport) 205.0 km
Columbia Aéroport 208.6 km
Siskiyou 209.5 km
Crater Lake 236.6 km
Paso Robles Municipal (Aéroport) 238.4 km
Truckee Tahoe (Aéroport) 246.6 km
Rohnerville (Aéroport) 248.1 km
Madera Municipal (Aéroport) 252.8 km
Medford Aéroport 253.2 km
San Luis Obispo County Regional (Aéroport) 254.3 km
Lake Tahoe (Aéroport) 257.1 km
Aéroport d'Arcata-Eureka 259.8 km
Alturas Aéroport 269.7 km
Aéroport Reno Stead 279.5 km
Vandenberg Space Force Base 280.4 km
Naval Air Station Lemoore 282.9 km
Santa Maria Public (Aéroport) 282.9 km
Reno-Tahoe (Aéroport) 286.9 km
Carson City Aéroport 288.7 km
Lompoc Aéroport 291.2 km
Fresno Yosemite (Aéroport) 298.6 km
Crescent City 304.5 km
Lake County (Aéroport) 307.3 km
Hanford Municipal (Aéroport) 317.5 km
Brookings Aéroport 321.7 km
Santa Ynez Aéroport 324.4 km
Visalia Municipal (Aéroport) 340.0 km
Santa Barbara Municipal (Aéroport) 351.0 km
Porterville Aéroport 380.6 km
Mammoth Yosemite (Aéroport) 385.2 km
Meadows Field (Aéroport) 394.5 km
Naval Air Station Fallon Aéroport 403.9 km
Hawthorne Industrial (Aéroport) 406.5 km
Oxnard (Aéroport) 414.3 km
Camarillo Aéroport 423.8 km
Naval Air Station Point Mugu 424.5 km
Derby Field 425.7 km
Eastern Sierra Regional (Aéroport) 439.0 km
Sandberg (Aéroport) 442.6 km
Tehachapi Municipal (Aéroport) 463.0 km
Van Nuys Aéroport 480.8 km
Whiteman (Aéroport) 485.9 km
Santa Monica (Aéroport) 489.4 km
General William J. Fox Airfield 494.0 km
Burbank 494.1 km
Aéroport et port spatial de Mojave Aéroport 494.1 km
Downtown Los Angeles 509.3 km
San Gabriel Valley (Aéroport) 528.0 km

Situation actuelle