Author Topic: NWS forecasts old v.s. new  (Read 339 times)

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Offline saratogaWX

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NWS forecasts old v.s. new
« 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 compares to the API-driven forecast at

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).

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)
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Offline Jasiu

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Re: NWS forecasts old v.s. new
« Reply #1 on: March 21, 2018, 07:46:38 PM »
I've noticed that the API forecast usually includes snow amounts before the old version does.