What Does Each Color on the NWS Radar Indicate?

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SUMMARY

The National Weather Service (NWS) radar uses a color-coded system to indicate various weather conditions across the United States. Blue represents rain, while green indicates rain with potential wind and storm activity. Yellow and red signify tornado watches and warnings, highlighting severe weather conditions. This discussion emphasizes the importance of understanding these color codes for safety during severe weather events.

PREREQUISITES
  • Understanding of NWS radar systems
  • Familiarity with weather terminology (e.g., tornado watches, severe weather warnings)
  • Basic knowledge of meteorological phenomena
  • Ability to interpret radar images
NEXT STEPS
  • Research the NWS radar color codes in detail
  • Learn about the different types of severe weather alerts issued by the NWS
  • Explore the functionality of the National Mosaic Enhanced Radar Image
  • Study the impact of weather patterns on local safety measures
USEFUL FOR

This discussion is beneficial for meteorology enthusiasts, emergency responders, and anyone interested in understanding weather radar systems and their implications for public safety during severe weather events.

Kitchen Diva
Kitchen Diva
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NWS - National Mosaic Enhanced Radar Image: Full Resolution Loop


looks like a fun night for most of the US! I hope that no one experiences really severe weather...

I love this radar- it shows the entire US and what's going on! You can click on a state for more indepth info. Right now it is quite the thunder and lightening show in my neck of the woods. I guess we have Tornado watches tonight...
 
Yowza!! I wonder what the blue means though. I'm in Nor Cal and as far as I know there isn't any severe weather expected (or rain or anything). I am just a little over an hour away from where Earthquakes have been going on though! Stay safe everyone!
 
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  • #3
pampermejolene said:
Yowza!! I wonder what the blue means though. I'm in Nor Cal and as far as I know there isn't any severe weather expected (or rain or anything). I am just a little over an hour away from where Earthquakes have been going on though!

Stay safe everyone!
Click to expand...

Blue is rain, green is rain with maybe wind and potential for bad storms. Yellow and red are tornado watches and warnings and severe weather.
 

Frequently Asked Questions

What does the color green indicate on the NWS radar?

The color green on the NWS radar typically indicates light to moderate precipitation, such as rain. It can also represent areas of light snow or drizzle.

What does yellow signify on the NWS radar?

Yellow on the NWS radar generally signifies moderate to heavy precipitation. This can include heavier rain or more intense snowfall, indicating that the precipitation is likely to be more significant in terms of volume.

What does red mean on the NWS radar?

Red on the NWS radar indicates very heavy precipitation. This color often represents severe weather conditions, such as heavy rain, thunderstorms, or even hail, and can be associated with flash flood warnings.

What does purple or magenta represent on the NWS radar?

Purple or magenta on the NWS radar often indicates extreme precipitation rates, such as torrential rain or heavy snowfall. This color is used to highlight areas where severe weather is occurring, potentially leading to hazardous conditions.

What does the color white indicate on the NWS radar?

The color white on the NWS radar typically represents areas of very light precipitation or no precipitation at all. It can also indicate areas of cloud cover without significant weather activity.

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