| Funnel-type rain gauge |
| Sheltered rain gauges reduce problems with wind. |
| A radar installation. The radar dish is located within the white dome. |
| Radio waves are sent out by a transmitter, and the reflected signal returns to the dish for analysis. The movement of objects can be measured by changes in the radio waves. |
| The current US weather radar netork. Coverage is not as good as depicted here due to blockage of the radar by buildings, trees, and terrain. |
| Conditions for sleet (ice pellet) formation. |
| Example of a precipitation analysis that uses radar data. |
| Washington state topography. |
| Washington state average annual precipitation. |
| Washington state ecological zones. |