Weather Stations In BC (Photos)

[Canada Goose]

Too much pavement behind it Sheriff.

The clearance around the station is very good and the concrete surfaces are relatively distant. This is a good station.

[Glacier]

The clearance around the station is very good and the concrete surfaces are relatively distant. This is a good station.

I agree that it's a good one, however, answer me this, Rocket Scientist: Why does Revelstoke have two stations at the airport (one by EC and one by Nav Canada) with the temperatures often being up to 5 degrees apart on hot days.

example 1: EC station = 34.6C on July 13th, 2018; Nav Canada = 31.8C

example 2: EC = 37.1C on July 8th, 2017; Nav Canada = 32.6!!!

EDIT: Interestingly enough, the hourly data for the EC station peaked at 32.9C, so maybe just a faulty thermometer by EC!

[Abby_wx]

I agree that it's a good one, however, answer me this, Rocket Scientist: Why does Revelstoke have two stations at the airport (one by EC and one by Nav Canada) with the temperatures often being up to 5 degrees apart on hot days.

example 1: EC station = 34.6C on July 13th, 2018; Nav Canada = 31.8C

example 2: EC = 37.1C on July 8th, 2017; Nav Canada = 32.6!!!

EDIT: Interestingly enough, the hourly data for the EC station peaked at 32.9C, so maybe just a faulty thermometer by EC!

I've often noticed that Nav Canada stations seems to have a cold bias. I notice it a lot with nighttime temperatures, as well (actually, moreso than daytime).

[Canada Goose]

I agree that it's a good one, however, answer me this, Rocket Scientist: Why does Revelstoke have two stations at the airport (one by EC and one by Nav Canada) with the temperatures often being up to 5 degrees apart on hot days.

example 1: EC station = 34.6C on July 13th, 2018; Nav Canada = 31.8C

example 2: EC = 37.1C on July 8th, 2017; Nav Canada = 32.6!!!

EDIT: Interestingly enough, the hourly data for the EC station peaked at 32.9C, so maybe just a faulty thermometer by EC!

Huh, EC's rules...

Let's have a look at the hourly data:

On July 8, 2017:

Time - Revelstoke A - Revelstoke Airport Auto (difference)

12:00: 20.7 - 26.4 (+5.7)
01:00: 19.5 - 27.6 (+8.1)
02:00: 23.5 - 28.9 (+5.4)
03:00: 23.9 - 29.1 (+5.2)
04:00: 24.0 - 31.7 (+7.7)
05:00: 31.2 - 32.9 (+0.7)
06:00: 31.6 - 32.6 (+1.0)
07:00: 28.4 - 29.5 (+1.1)
TMax: 32.6 - 37.1 (+4.5)

Since the 2 stations are supposed to be almost at the same place, the readings are totally inconsistent.
Furthermore, the Tmax of the 2nd station is 4.2C higher than the hourly Tmax, which is highly unlikely and suspicious.
And a 4.5C difference between the 2 Tmax is impossible.

On July 13, 2018:

Time - Revelstoke A - Revelstoke Airport Auto (difference)

12:00: 22.0 - 24.0 (+2.0)
01:00: 26.1 - 28.8 (+2.7)
02:00: 31.6 - 31.4 (-0.2)
03:00: 30.4 - 31.2 (+0.8)
04:00: 26.5 - 30.4 (+3.9)
05:00: 29.0 - 29.8 (+0.8)
06:00: 27.4 - 28.0 (+0.6)
07:00: 25.6 - 26.7 (+1.1)
Tmax: 31.8 - 34.6 (+2.8)

The readings are more close but still very different at certain hours (1:00, 4:00).
The Tmax of the 2nd station is 3.2C higher than the hourly Tmax, still too much...
A difference of 2.8C between the 2 Tmax is here again highly unlikely.


As Abby_wx said, there's a looooot of problems with some data, especially since 2013 or so (when NAVCAN replaced many EC stations).
I've noticed a lot of incoherences with YVR station when the sky is clear.
For example, I don't believe in the June record on June 30, 2013 (!). The hourly max was 26.1C and the Tmax was supposedly 31.2C!

In short, this is a real nightmare...

[Glacier]

I've often noticed that Nav Canada stations seems to have a cold bias. I notice it a lot with nighttime temperatures, as well (actually, moreso than daytime).

You are so right. I just ran a quick run at 2019 data for 7 airports in BC that have both stations.

In 100% of them, the cold bias exists at night. The daytime is less so, but look at Kamloops! Dease lake has an interesting trend!

temperaturebias.png

TDiffKamloops.png

TDiffDeaseLake.png

TDiffRevelstoke.png

TDiffVancouver.png

TDiffLytton.png

[SouthSardiswx]

Good detective work there Sheriff.

[Canada Goose]

Maple Ridge-Kanaka Creek (closed in Feb. 2018 but the Google image is from Dec. 2018 )

Maple Ridge-Kanaka Creek.jpg

[Hound]

So it secretly still exists?

[Canada Goose]

So it secretly still exists?

Maybe the station still exists but nobody operates it...
One day I will go there to check.

[Glacier]

I wonder why it's sitting over gravel?

[Canada Goose]

I wonder why it's sitting over gravel?

Yep...

Glacier, check your pm.

[SouthSardiswx]

Maybe the station still exists but nobody operates it...
One day I will go there to check.

We expect a full report Sheriff Goosey you may have to issue a fine for aborting a functional weather station.

[SouthSardiswx]

Yep...

Glacier, check your pm.

Probably to pee you off.

[Glacier]

GALIANO NORTH

galianonorth.png

[Glacier]

North Cowichan


North Cowichan.jpg

North Cowichan (2).jpg

We need to revisit this one.

The station is located here, which is way too close to the asphalt.

What kind of structure is this anyway?

northcowichanzoomed.png