World

Central America



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 - Piedras Negras Distance
Piedras Negras 0.0 km
Maverick County Memorial IAP 3.9 km
Laughlin Air Force Base 31.0 km
Sonora Airport 40.7 km
Del Rio Intl. Airport 44.9 km
Rocksprings Airport 47.2 km
San Angelo Regional Airport 54.3 km
Monterrey 65.1 km
Del Norte Intl 65.7 km
Monterrey/Gen Maria AP 65.9 km
Avenger Field 76.8 km
Carrizo Hill Airport 79.1 km
Ozona Airport 85.9 km
Saltillo Airport 87.8 km
Garner Field 88.5 km
Junction Airport 92.4 km
Snyder 95.0 km
Dyess Air Force Base 105.8 km
Monclova 107.3 km
Nuevo Laredo Intl. Airport 109.9 km
Abilene Airport 119.2 km
Laredo Intl. Airport 120.8 km
Big Spring Airport 133.0 km
Coleman Airport 139.3 km
Curtis Field 142.8 km
Cotulla 146.6 km
Zapata Airport 146.7 km
South Texas Regional Airport at Hondo 152.7 km
Kerrville Airport 163.2 km
Fredericksburg 183.1 km
Brownwood Regional Airport 185.6 km
Castroville Airport 187.8 km
Dryden Terrell C. Arpt 187.9 km
Midland Airpark Airport 189.1 km
Midland Airport 196.9 km
Breckenridge Airport 197.7 km
Hebbronville Airport 201.5 km
Boerne Stage Field 205.5 km
Llano Airport 211.8 km
Lackland Air Force Base 217.4 km
Odessa Airport 218.2 km
Comanche Airport 223.5 km
Pleasanton Airport 224.4 km
Stinson Airport 230.3 km
San Antonio Intl. Airport 230.6 km
Andrews Airport 236.3 km
Randolph Air Force Base 250.9 km
Seminole Airport 252.0 km
Burnet Airport 258.6 km
McAllen Miller Intl. Airport 259.5 km
General Lucio Blanco Intl. Airport 261.1 km
Lampasas Airport 263.6 km
Alice Intl. Airport 265.9 km
Fort Stockton- Pecos County Airport 268.1 km
Stephenville Airport 269.7 km
Falfurrias Airport 269.9 km
South Texas International Airport at Edinburg 270.6 km
Hamilton Airport 270.7 km
Naval Auxiliary Landing Field Orange Grove 277.5 km
New Braunfels Airport 277.5 km
Lago Vista Airport 287.6 km
Mineral Wells Airport 290.0 km
San Marcos Regional Airport 297.6 km
Killeen- Fort Hood Regional Airport 303.4 km
Naval Air Station Kingsville Airport 303.9 km
Beeville Airport 304.9 km
Winkler Airport 305.0 km
Gatesville Airport 308.3 km
Granbury Airport 309.4 km
Lea 310.4 km
Killeen 316.4 km
Austin 316.6 km
Georgetown Airport 319.1 km
Skylark Field 320.0 km
Valley Intl. Airport 323.8 km
Torreón Airport 330.9 km
Austin Executive Airport 332.0 km
Pecos Airport 337.2 km
Matamoros Airport 337.8 km
Corpus Christi Intl. Airport 338.0 km
Gonzales Airport 342.0 km
Brownsville/South Padre 350.2 km
Naval Air Station Joint Reserve Base Fort Worth 350.2 km
Draughon- Miller Central Texas Regional Airport 350.5 km
Cleburne Airport 350.7 km
Alpine- Casparis Airport 352.8 km
Port Isabel AP 358.8 km
Fort Worth Meacham Intl. Airport 359.4 km
Mc Gregor 361.2 km
Naval Air Station Corpus Christi 362.2 km
Perot Field Fort Worth Alliance Airport 365.4 km
Fort Worth Spinks Airport 365.9 km
Waco Regional Airport 372.5 km
Port Aransas Airport 383.7 km
Hillsboro Airport 386.8 km
Aransas 387.9 km
Arlington Airport 387.9 km
TSTC Waco Airport 388.6 km
Marfa Airport 389.2 km
Grand Prairie Airport 393.8 km