How
the weather service lies about daily temperatures
As
I have pointed out I have been keeping a record of daily temperatures
at home in Alicetown, Lower Hutt.
What
I have noticed and have been recording is how daily temperatures have
been warmer than that reported by Metservice. In particular the
minimum temperatures have been much warmer than what one would
“expect” and what has been reported on the internet.
For
example the other day the minimum night-time termperature was a
toasty 12 degrees Celsius whereas Metservice reported the minimum
temperature as being 8 degrees Celsius.
The
maximum temperature for the day was reported as 12 degrees. It was
over this at breakast time and reached almost 20 degrees!
I
decided to ring Metservice to get their explanation for this state of
affairs.
After
a long-winded explanation from a helpful meteorologist it turned out
that the situation is that the temperatures I read every day are a
forecast the comes from a model which uses average temperatures as
part of the equation.
In
other words, nothing that has any bearing with reality!!
The
discussion is recorded below:
If I want the actual recorded temperatures I have to scroll down further.
"You’ll
see the forecast high and low for today at the top of the tab (14C
and 8C respectively).
"The
observed temperatures you can see to the left of the line in the
graph portion of the image (you can see the lowest temperature
recorded this morning was 12C between 4am-6am).
"If
you would like to check out weather observations further back from
today you will have to scroll down the webpage (past the headings for
Social Media Gallery and Maps, Radars and Videos) to the ‘Past
Weather’ heading. This is a great resource for checking
observations. The default view will show maximum/minimum
temperatures, total rainfall and maximum wind gust and wind speed for
each day in the past 30 days. You can change this to show you more
detailed info for the yesterday only, or less detailed info for the 2
years along with the historical averages"
Thank you for this.. Helps understand what is going on. (madness)
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