It can mean a few things, but the 2 most common are:
-in winter or cold weather situations, it means freezing rain/sleet, or a rain/snow mix
-in strong storms, the level of precipitation ranges from light rain in shades of green, up through steady rain in yellow, to heavy rain in red. Sometimes pink is used to indicate even heavier rain, usually a blinding downpour, and once in Oklahoma I actually saw them use black on the radar, which must be the heaviest rain possible.
Yellow clouds on a radar mean that the rain quantities are not light nor heavy and the storm has a small chance of severe weather.
Green means rain.
Depending on the product, it can mean either very heavy rain or pea size hail, or winds moving torwards the radar site if you are looking at Storm relative mean velocity or base mean velocity products.
Oceans can have a dramatic impact on weather radar. Mountains can also affect radar, although generally the difference is not dramatic.
Not heavy rain but not light. its a storm that is monitored because it may become a thunderstorm.
it probably means a storm on a weather radar, or nothing is located in that area
Yellow clouds on a radar mean that the rain quantities are not light nor heavy and the storm has a small chance of severe weather.
Green means rain.
snow/ice
Doppler Radar
You can see the Houston weather radar live on the weather channel of the city or you can go direct to the government website and ask for the weather in the area of Houston. Foxrad Storm seeker also offer a possibility to view the weather radar.
Depending on the product, it can mean either very heavy rain or pea size hail, or winds moving torwards the radar site if you are looking at Storm relative mean velocity or base mean velocity products.
The radar was starting to detect weather coming.
weather radar
A weather radar is a type of radar used to locate precipitation, calculate its motion, estimate its type (rain, snow, hail, etc.), and forecast its future position and intensity.
Oceans can have a dramatic impact on weather radar. Mountains can also affect radar, although generally the difference is not dramatic.
Not heavy rain but not light. its a storm that is monitored because it may become a thunderstorm.