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My friend Bob goes from A to B leaving tomorrow morning at 6:00. There are many direction services that indicates him short, fast and/or cheap routes. Bob does not like to drive under the rain and wants to know which weather is forecasted along different routes.

To help him, I would like to develop a web service that enrich existing direction webservices and provides him the "weather profile" of his trip from A to B. Such weather profile could be represented like on the following image (taken from the excellent norvegian website www.yr.no), except the X axis would be the travel time (or distance):

weather profile in Marseilles

Do you know if such service (or comparable) already exist?

Do you know some useful weather forecast web services to develop such thing? The requirement would be a service that provides for any location (lon,lat) a forecast (temperature, rain, etc.) for a given date/time.

Bob thanks you.

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Can be developped with GMap cloud layer: developers.google.com/maps/documentation/javascript/… –  julien Apr 5 '12 at 9:02
    
see also content.stamen.com/weather_weather_everywhere –  julien Jun 19 '12 at 8:08

2 Answers 2

I am unsure of anything that already plans routes by weather conditions, but if you were to try to figure it yourself, I would take a look at NOAA/NWS GIS Data. They have both KMLs and Shapefiles for current weather, forecasts, hurricanes, etc.

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And, after I post I notice that your picture is weather from France. So this might not help. I am looking into if there is something similar on an international basis. –  MaryBeth Mar 14 '11 at 17:20

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