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Web Weather => Weather Website PHP/AJAX scripting => Topic started by: saratogaWX on March 21, 2018, 05:58:03 PM

Title: NWS forecasts old v.s. new
Post by: saratogaWX on March 21, 2018, 05:58:03 PM

I'm still running occasional side-by-side tests of the advforecast2.php script (old-4.03 v.s. new-5.05) to see how the NWS current forecast from forecast.weather.gov compares to the API-driven forecast at forecast-v3.weather.gov.

Usually, they are mostly identical.  Today's rain probability and amounts seem to differ quite a bit (higher probability and values for the still 'beta' API forecast).

(https://saratoga-weather.org/2018-03-21_nws-compare.jpg)

Guess they have more work to do on the API version (or maybe it is the 'improved' version that makes better forecasts.. don't know)

Title: Re: NWS forecasts old v.s. new
Post by: Jasiu on March 21, 2018, 07:46:38 PM

I've noticed that the API forecast usually includes snow amounts before the old version does.