The red and green colors show the winds blowing away from the radar. Lighter colors on the image are associated with stronger winds, while darker colors are associated with weaker winds. Radar images can be used to determine the direction and speed of a moving object, such as a ship or aircraft.
Radar images are also useful for determining the position of an object in relation to other objects in the sky. You can also use radar images to measure the distance between two points on a map.
Table of Contents
What does red on radar mean?
The radar’s computers will calculate the shift and determine whether the precipitation is moving towards or away from the radar, and how fast, then apply a corresponding color to those directions and speeds. Red is a target moving away from the radar while green is a target moving towards it.
“This is the first time we’ve been able to do this in a real-world situation,” said Dr. Michael J. Smith, a radar scientist at NASA’s Goddard Space Flight Center in Greenbelt, Md., who led the study.
What do tornadoes look like on radar?
The national weather service image shows this as a red area next to a green area. Tornado activity can occur at any time of the year, but is most likely to occur during the spring and summer months, when the weather is warm and dry. Tornadoes can also occur in mid- to late-summer months.
What does purple mean on the radar?
It was very heavy rain or hail. Blue is the weather. Pink means either freezing rain or sleet. As the radar may think it is snow, snow can show up as yellow or orange. Snowstorm. The radar will show you the weather conditions in your area. You can click on the image to see a larger version of it.
What does GREY mean on radar?
The first scale is the wind speed in meters per second (m/s), and the second is in knots (knots per hour). Wind speed is indicated by the vertical line in the upper left corner of each image. The wind direction is shown as a horizontal line on the velocity images.
Wind direction can be either up or down. Downwind wind blows from right to left. Both wind directions are represented by a vertical dashed line, and both wind speeds are shown by horizontal lines.
What does black mean on radar?
Dark colors like red or black are not good. Those colors mean lots of energy is being reflected back to the radar from things like hail or tons of heavy rain. Sometimes we can get bright spots on radar images, since the radar can see anything. If you don’t see the spot, then it’s probably not a good idea to go out and look for it.
What does green mean on the radar?
Light green is light rain or light rain not reaching the ground. Light to moderate rain is what dark green is. Moderate rain in a yellow color. Rainfall is measured in inches (mm) and inches per hour (in/hr). For more information, see the Weather Prediction Center.