Rain fog is a type of fog that forms when warm rain falls through cooler air near the surface. Here's a detailed explanation:
Formation of Rain Fog
When warm rain descends into a layer of cooler air, the following process occurs:
- Evaporation: Water evaporates from the warm raindrops.
- Condensation: The evaporated water vapor then condenses within the cool air.
- Fog Formation: This condensation process creates fog, which can become quite dense.
According to provided information, rain fog generally persists as long as the rain continues. Because the temperature doesn't rise much during the day when it's raining, rain-induced fog shows little variation between day and night.
Characteristics of Rain Fog
Here's a summary of the main characteristics of rain fog in a table:
| Characteristic | Description |
|---|---|
| Formation Process | Warm rain falls through cooler air, leading to evaporation and condensation. |
| Density | Can be quite dense. |
| Duration | Persists as long as the rain continues. |
| Diurnal Variation | Little variation between day and night due to stable temperatures. |
