Tom Keffer <[email protected]> writes: > 2. The algorithm for calculating heat index was changed to the new NWS > algorithm <https://www.wpc.ncep.noaa.gov/html/heatindex_equation.shtml>. > I must admit, I don't like it either, because it can show values below > sensible temperatures. I'm thinking of allowing the user to make a choice > between algorithms.
Sounds good to give people choice of course. It seems the tricky thing is various hardware calculations vs various algorithms in software and how the defaults change that. And the difficult UI thing is to have unambiguous but not enormous labels for the N kinds of varying country-defined Heat Index formulas. It seems that "Heat Index" is no longer a single concept. But HI-NWS is icky as a label. I don't understand the notion that Heat Index must be >= temperature. It seems Heat Index value X means it feels like X and Y% humidity, for some specfied Y (50?). So with lower humidity than Y%, it makes sense that it doesn't feel as hot as the actual temperature. I think we're used to this strict relationship with wind chill, but there the reference wind is 0, so wind chill is necessarily always <= temp. -- You received this message because you are subscribed to the Google Groups "weewx-user" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/weewx-user/rmi5z6iv41h.fsf%40s1.lexort.com.
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