| A | B |
|---|
| Analog Method | Forecasting based on the idea that weather repeats itself in a general way. |
| Automated Surface Observing Systems (ASOS) | Data collected automatically by stations that include all present weather conditions. |
| Climatological Forecasting | Uses the data collected over many years to predict the weather in an area. |
| Ensemble Forecasting | Forecasters use a number of forecasts using the computer and altering the initial reading but stay within the range of error of the instruments. |
| Geostationary Satellites | Located at a fixed point on the Earth as they rotate |
| Isotachs | Lines of equal wind speed. |
| Jet Streaks | Segments of the jet stream with higher velocities of wind. |
| Model Output Statistics | Using statistics to see how close a prediction is to previously generated forecasts. |
| National Centers for Environmental Prediction | The center where weather is collected from around the world in the US. |
| National Weather Service (NWS) | The US agency that is responsible for weather-related information. |
| Nowcasting | A quick issued forecast in a small area based on the possibility of severe weather. |
| Numerical Weather Prediction | Technique used to forecast weather using numeric models designed to represent atmospheric processes. |
| Persistence Forecasting | Based on the tendency of the weather to remain unchanged for several hours or days. |
| Polar Satellites | Low altitude satellites that can orbit the Earth in 100min. |
| Prognostic Charts | A machine generated map of the atmospheric conditions sometime in the future. |
| Skill | An Index to the degree of accuracy of a set of forecasts as compared to forecasts based on some standard. |
| Synoptic Weather Maps | A symbol that collects weather information and displays it at a given time. |
| Trend Forecasting | Based on the movement of fronts, cyclones, and precipitation to predict possible weather. |
| Weather Analysis | The collection, transmission, and compiling of millions of pieces of observed data. |
| Weather Forecast Offices | Forecasts sent to regional offices that are used to produce local and regional weather forecasts. |
| Weather Forecasting | A scientific estimate of the weather conditions in the future. |
| Wind Profilers | Special radar units that can measure wind speed and direction up to 10Km. |
| World Meteorological Organization | An agency of the UN, responsible for the international exchange of weather data. |
