What Do The Colors Mean On NOAA Radar?

What do the colors on the radar mean?

Typically, the heavier the rain, the warmer the color.

So, green usually means light rain, yellow means moderate rain, and red means heavy rain or hail.

The green colors indicate winds moving towards the radar, and the red colors indicate winds moving away from the radar..

What does gray mean on weather radar?

The colors are the different radial velocities measured by the radar. In velocity images, red colors indicated wind moving away from the radar with green colors indicating motion toward the radar. The transition zone between incoming and outgoing winds are indicated the gray-ish colors between the two.

What color is a tornado?

A tornado which is “back-lit” (viewed with the sun behind it) appears very dark. The same tornado, viewed with the sun at the observer’s back, may appear gray or brilliant white. Tornadoes which occur near the time of sunset can be many different colors, appearing in hues of yellow, orange, and pink.

How do you tell if a tornado is coming towards you?

Warning Signs that a Tornado May DevelopA dark, often greenish, sky.Wall clouds or an approaching cloud of debris.Large hail often in the absence of rain.Before a tornado strikes, the wind may die down and the air may become very still.A loud roar similar to a freight train may be heard.An approaching cloud of debris, even if a funnel is not visible.

Is it safe to hide in a bathtub during a tornado?

A bathtub can be a safe place to find shelter at home. … But if your bathroom or bathtub is on (or even in a room with) an exterior facing wall — or if there are outside-facing windows — best to leave it for a more secure space.

How can you tell a tornado is forming?

Besides an obviously visible tornado, here are some things to look and listen for: Strong, persistent rotation in the cloud base. Whirling dust or debris on the ground under a cloud base — tornadoes sometimes have no funnel! Hail or heavy rain followed by either dead calm or a fast, intense wind shift.

How do you read radar colors?

Velocity imagery is almost always displayed with red and green colors. Red shows winds blowing away from the radar, and green shows winds blowing toward it. Stronger winds usually equate to brighter colors on the radar imagery.

What do tornadoes look like on radar?

Meteorologists look for low CC values within a tornado’s debris ball surrounded by higher values. This often appears as a small blue circle within a larger red area. … If the radar shows a strong area of rotation and a debris ball in the same area, it is a strong signature that there is a tornado occurring.

What color is a tornado warning?

The term “red box” refers to the assigned coloring used for watch box outlines used in Storm Prediction Center and National Weather Service products; television stations typically assign other colors (colors used may vary, but very seldom if ever red, which is usually reserved for identifying tornado warnings; yellow …

Which color indicates very light snow is falling?

Therefore, dark blue could represent either light rain or light snow, depending upon the weather conditions that existed at the time the radar image was generated.

How does rain radar work?

The word ‘radar’ is an acronym for ‘radio detection and ranging’ and is a technology based on radio waves. A weather radar detects precipitation, such as rain or hail. … When these pulses hit water particles they reflect back to the radar as ‘echoes’, much like the echoes of sound you hear in a cave or tunnel.

What are the color codes for weather?

Breakdown: The science behind doppler radar ‘colors’Light green= Light rain or rain.Orange= Heavy Rain.Red= Very Heavy Rain or Rain & Hail.Pink= Freezing Rain or Sleet or Both.Often times people think of red as severe but this isn’t necessary the case. We should think of this colors in terms of intensity, not severity.

What does purple mean on weather radar?

Hail, which is common in thunderstorms, is extremely reflective, and can easily return high-end reflexivities, so purple on a radar map often means hail is occurring. Ice pellets have higher reflectiveness than rain, but lower than hail.

What does black mean on radar?

We call this reflectivity. As you know, dark colors like red or black = bad! Those colors mean lots of energy is being reflected back to the radar from things like hail or tons of heavy rain.

What color is snow on radar?

BlueImage 2: Blue shows where snow is most likely. Pink is mix. Green is rain.