Weather, while it cannot be controlled, can be predicted, which helps commanders make informed decisions about planning exercises and troop movements. Meteorology and oceanography Marines support battlefield capabilities through forecasting and predicting how weather will impact operations.
These Marines are trained meteorologists and oceanographers who look at the current state of the environment and create weather forecasts that support operational planning and execution. They create routine forecasts, 96-120 hours out, using satellite data and weather patterns, in addition to future forecasts for exercise planning, using historical weather data over a 20-year period.
"Out here in the Pacific, weather can determine both friendly and adversarial pacing of operations," said Marine Corps Sgt. Priya Hasham, a meteorology and oceanography analyst forecaster with the III Marine Expeditionary Force.
To learn this field, Marines attend a yearlong program where they are taught basic physics, develop an understanding of the atmosphere and how it affects the weather and gain the ability to interpret weather radar data to create forecasts.
In creating a forecast, satellite imagery, radar and data from weather stations around the world can be used. Pattern recognition also plays a significant role in forecasting, making personal experience an important factor. Since weather is influenced by local terrain, the longer a Marine has been in an area, the more familiar they are with local weather patterns, improving their ability to create accurate predictions.
"Forecasting is an art and science," Hasham said. "There is a lot of technical skill involved."
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