Wereld

Noord-Amerika



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.


Weerstations in de buurt - Porterville Afstand
Porterville Luchthaven 0.5 km
Meadows Field Airport 32.5 km
Visalia Municipal Airport 40.2 km
Hanford Municipal Airport 63.1 km
Sandberg Airport 78.4 km
Fresno Yosemite (luchtaven) 82.7 km
Tehachapi Municipal Airport 84.8 km
Mammoth Yosemite Airport 89.4 km
Camarillo Luchthaven 98.6 km
Naval Air Station Lemoore 99.7 km
Oxnard Airport 100.5 km
Naval Air Station Point Mugu 103.9 km
Eastern Sierra Regional Airport 105.6 km
Mojave Air and Space Port Luchthaven 114.4 km
General William J. Fox Airfield 116.9 km
Van Nuys Airport 117.0 km
Whiteman Airport 119.1 km
Santa Barbara Municipal Airport 122.3 km
Burbank 126.4 km
Madera Municipal Airport 127.6 km
Santa Monica Airport 128.0 km
Palmdale Regional Airport 132.7 km
Los Angeles Intl. Airport 135.3 km
Santa Ynez Luchthaven 136.9 km
Hawthorne Municipal Airport 139.1 km
Downtown Los Angeles 140.7 km
Hawthorne Industrial Airport 143.2 km
Edwards Air Force Base 144.8 km
Edwards 144.9 km
Zamperini Field 145.4 km
San Gabriel Valley Airport 154.9 km
Naval Air Weapons Station China Lake 155.1 km
Long Beach Airport 156.1 km
Naval Outlying Landing Field San Nicolas 158.2 km
Catalina Airport 159.3 km
Joint Forces Training Base 164.3 km
Santa Maria Public Airport 166.2 km
Fullerton Municipal Airport 166.7 km
San Clemente Island Luchthaven 170.1 km
Lompoc Luchthaven 173.3 km
Grey Butte Field Airport 173.7 km
Paso Robles Municipal Airport 175.6 km
Merced Regional Airport 175.6 km
Brackett Field 175.8 km
San Luis Obispo County Regional Airport 180.8 km
John Wayne Airport 182.7 km
Castle Airport 183.0 km
Vandenberg Space Force Base 183.9 km
Columbia Luchthaven 186.2 km
Naval Air Station Fallon Airport 186.4 km
Carson City Luchthaven 187.8 km
Lake Tahoe Airport 188.2 km
Chino Airport 193.4 km
Ontario Intl. Airport 194.0 km
Corona Luchthaven 198.2 km
Southern California Logistics Airport 202.3 km
Reno 205.7 km
Riverside Municipal Airport 210.8 km
Truckee Tahoe Airport 216.0 km
Reno Stead Airport 218.5 km
Derby Field 223.4 km
Modesto 227.8 km
San Bernardino Intl. Airport 227.9 km
March Air Reserve Base 231.2 km
Marine Corps Air Station Camp Pendleton 239.1 km
Placerville Airport 239.9 km
Oceanside Municipal Airport 241.8 km
Tonopah Airport 244.7 km
Fallbrook Luchthaven 246.3 km
McClellan- Palomar Airport 250.2 km
Murrieta Hot Springs 251.3 km
Blue Canyon 257.3 km
Barstow-Daggett Airport 261.5 km
Big Bear Luchthaven 262.8 km
Stockton Metropolitan Airport 264.5 km
Hollister Luchthaven 265.3 km
Naval Air Station North Island 270.2 km
San Diego Intl. Airport 273.3 km
Montgomery-Gibbs Executive Airport 273.4 km
Marine Corps Air Station Miramar 273.7 km
Bicycle Lake Army Airfield 274.1 km
Auburn Luchthaven 277.6 km
Nevada 279.4 km
Naval Outlying Landing Field Imperial Beach 283.0 km
Salinas Municipal Airport 284.2 km
Sacramento Mather Airport 285.7 km
Ramona Luchthaven 286.0 km
Gillespie Field Airport 287.4 km
South County Arpt Of Santa Clara County 287.8 km
Winnemucca Luchthaven 293.9 km
Brown Field Municipal Airport 294.3 km
Tijuana Luchthaven 296.3 km
Sacramento McClellan Airport 298.8 km
Lincoln Luchthaven 301.0 km
Sacramento Executive Airport 303.8 km
Watsonville Municipal Airport 306.6 km
Palm Springs Intl. Airport 307.6 km
Monterey Regional Airport 311.4 km
Reid- Hillview Airport 314.8 km
Beale Air Force Base 315.6 km