United States Weather Radar Data Feed or API?

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Is there a government or private API for accessing weather radar data in the United States?

Championship answered 29/6, 2010 at 16:56 Comment(0)

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NOAA has a SOAP API: http://www.nws.noaa.gov/forecasts/xml/

Several private APIs are listed here:

http://www.programmableweb.com/apis/directory/1?apicat=Weather

Constructivism answered 29/6, 2010 at 16:59 Comment(1)

The NOAA radar feed works, but their radar images do not distinguish between rain and snow, making them somewhat useless for the average user – Infer 26/10, 2013 at 18:6

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I was looking for radar data awhile back to overlay on a google map. This site offers it for free and they provide some sample code to get started for google maps and some other online maps:

IEM Open GIS Consortium

The map tiles they provide are not limited to radar and as far as I can tell they are all free to use.

Pricillaprick answered 28/3, 2013 at 19:42 Comment(0)

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Radarmatic has a JSON API at http://radarmatic.com/api.html

Update: link broken, project no longer active

Billfold answered 3/9, 2010 at 12:50 Comment(0)

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A better way to apprach this would be to use the "Weather and Climate Toolkit" offered at : The Weather and Climate Toolkit homepage.

The software can batch process raw radar data - and you can get just about anything you want this way if you are able to place it on your map after processing. It can export in JSON, geoTIF and some other formats. If you want more options for your app/project, this is the easiest way to do it - as you can get rain, snow, hail, wind velocity, dual polarization products, etc quite easily once you learn your way around the software.

Weather radar data feed from every WSR-88D radar site comes in 2 raw forms : Level-2 and Level-3. Level 2 data ("super resolution" and base data) is available from the Amazon AWS servers (NEXRAD on AWS) and level-3 data is available from the NWS server at This link from the Radar Operations Center.

Cimmerian answered 19/10, 2018 at 10:19 Comment(0)

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You can get images updated every three minutes from NWS RIDGE. It's not really an API -- just images sitting in a directory -- but the naming convention and structure of the images is fully documented.

Thunderstorm answered 20/12, 2015 at 18:49 Comment(2)

NWS Ridge has been removed. This one no longer works :( – Healy 3/9, 2018 at 1:45

@Healy It's still up. They just changed the URLs -- Thanks for pointing this out, I've updated my answer to link to weather.gov/jetstream/ridge_download – Thunderstorm 7/10, 2018 at 18:28

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