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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 - Half Moon Bay Απόσταση
Eddie Andreini Sr. Airfield 2.0 km
San Francisco International Airport 13.1 km
San Carlos Airport 26.0 km
Oakland International Airport 32.8 km
Marin 39.4 km
Πάλο Άλτο Αεροδρόμιο 40.9 km
Hayward Executive Airport 42.0 km
Petaluma Airport 47.4 km
Napa Airport 48.1 km
Moffett Federal Airfield 48.5 km
Buchanan Field Airport 56.1 km
San Jose International Airport 62.8 km
Santa Rose Airport 71.4 km
Reid- Hillview Airport 74.9 km
Livermore Municipal Airport 75.2 km
Travis Air Force Base 76.3 km
Nut Tree Airport 78.6 km
Watsonville Municipal Airport 84.8 km
Monterey Regional Airport 89.0 km
Davis Airport 98.7 km
South County Arpt Of Santa Clara County 101.7 km
Salinas Municipal Airport 110.0 km
Sacramento International Airport 121.9 km
Hollister Airport 124.7 km
Sacramento Executive Airport 125.0 km
Ukiah Airport 126.5 km
Sacramento McClellan Airport 138.8 km
Yuba 139.0 km
Stockton Metropolitan Airport 139.3 km
Sacramento Mather Airport 145.5 km
Lincoln Airport 150.8 km
Beale Air Force Base 151.4 km
Oroville Municipal Airport 151.6 km
Chico Municipal Airport 152.6 km
Red Bluff Municipal Airport 160.0 km
Modesto 170.9 km
Auburn Airport 177.4 km
Redding Municipal Airport 180.0 km
Nevada 193.2 km
Weaverville 201.2 km
Placerville Airport 205.4 km
Trinity Center 210.2 km
Castle Airport 213.3 km
Merced Regional Airport 219.3 km
Blue Canyon 222.5 km
Mount Shasta 228.3 km
Paso Robles Municipal Airport 232.0 km
Columbia Airport 232.4 km
San Luis Obispo County Regional Airport 243.7 km
Siskiyou 255.9 km
Rohnerville Airport 261.8 km
Madera Municipal Airport 265.3 km
Vandenberg Space Force Base 266.4 km
Santa Maria Public Airport 272.1 km
Arcata 275.3 km
Lompoc Airport 278.3 km
Truckee Tahoe Airport 281.9 km
Lake Tahoe Airport 288.4 km
Naval Air Station Lemoore 289.9 km
Fresno Yosemite International Airport 310.9 km
Santa Ynez Airport 315.8 km
Reno Stead Airport 315.9 km
Alturas Airport 318.1 km
Κάρσον Σίτι Αεροδρόμιο 321.3 km
Reno 321.8 km
Hanford Municipal Airport 326.3 km
Crescent City 326.5 km
Santa Barbara Municipal Airport 343.8 km
Visalia Municipal Airport 349.8 km
Porterville Airport 389.8 km
Meadows Field Airport 399.9 km
Mammoth Yosemite Airport 405.8 km
Oxnard Airport 411.0 km
Naval Outlying Landing Field San Nicolas 416.6 km
Naval Air Station Point Mugu 421.4 km
Camarillo Airport 421.4 km
Hawthorne Industrial Airport 432.5 km
Naval Air Station Fallon Airport 434.8 km
Sandberg Airport 445.5 km
Eastern Sierra Regional Airport 458.3 km
Derby Field 459.4 km
Tehachapi Municipal Airport 469.5 km
Van Nuys Airport 482.2 km
Whiteman Airport 487.9 km
Santa Monica Airport 490.0 km
Μπέρμπανκ 496.1 km
Διεθνές Αεροδρόμιο του Λος Άντζελες 498.1 km
General William J. Fox Airfield 499.3 km
Mojave Air and Space Port Airport 501.4 km
San Clemente Island Airport 501.8 km
Hawthorne Municipal Airport 503.7 km
Zamperini Field 507.0 km
Catalina Airport 509.8 km
Downtown Los Angeles 511.2 km
Long Beach Airport 524.7 km
San Gabriel Valley Airport 531.0 km
Joint Forces Training Base 535.2 km

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