Barry <[email protected]> writes: > Now that I have (with help from the group) Weefx and the tempest running > well I would lie to throw out a Met. > > Current observation > > Wind 210/3knts > Humidity 75% > Temp 20.1C > Dewpoint 15.5C > > Wind Chill 20.1C > Heat Index 20.1C > Feels Like 21.5C > > From what I have read Heat index is calculated from Temperature and > Humidity and Feels Like is calculated from Temperature, Humidity and Wind. > with any wind, would it not decrease the Feel Like below the value of > the Heat Index? I am not sure how the Feel Like can be higher than the Heat > Index. Are Wind Chill, Heat Index and Feels like calculated by the Tempest, > weewx or a combination of both?
There are a number of terms, and it woudl not shock me if some equipment used a term with a non-standard definition. The first thing you should do is chase down what the words actually mean. Often heat index type values are relative to 50% humidity. There's no reason to expect that Heat Index and Feels Like have the same baseline treatment of humidity, unless you read both definitions. I have never seen a definition for "Feels Like". It seems to be an acurite concept, basically heat index or wind chill, depending on whether it is hot or cold, in some vague way. I would not be surprised if there were a number of inconsistent definitions. I generally ignore things like this, that aren't clearly traceable to a widely-agreed-on definition backed up by the literature. Weewx can use values from hardware or calculate. Read your weewx.conf and look at the StdWXCalculate section, and read the docs about that. https://en.wikipedia.org/wiki/Heat_index There is also THSW, which I gather is popular in .au, but I am unclear on it. -- 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/rmio7zxzetg.fsf%40s1.lexort.com.
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