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Difference meteograph.cgi?text=all vs WUnderground
Posted: Tue Oct 05, 2010 2:09 pm
by D70
Looking to my meteograph.cgi?text=all output I get:
Code: Select all
seqday1_utcdate 20101005111338_20101004111338_20101003111338_20101002111338_20101001111338_20100930111338_20100929111338_20100928111338_20100927111338_20100926111338_20100925111338_20100924111338_20100923111338_20100922111338_20100921111338_20100920111338_20100919111338_20100918111338_20100917111338_20100916111338_20100915111338_20100914111338_20100913111338_20100912111338_
seqday1_localdate 20101005111338_20101004111338_20101003111338_20101002111338_20101001111338_20100930111338_20100929111338_20100928111338_20100927111338_20100926111338_20100925111338_20100924111338_20100923111338_20100922111338_20100921111338_20100920111338_20100919111338_20100918111338_20100917111338_20100916111338_20100915111338_20100914111338_20100913111338_20100912111338_
seqday1_wind0_gustspeed_kn 2.3_7.1_3.7_1.5_3.5_2.0_1.6_1.7_1.2_
seqday1_wind0_speed_kn 2.0_6.4_3.3_1.3_3.2_1.7_1.4_1.5_0.7_
seqday1_wind0_maindir_deg 158_180_203_135_68_158_180_158_158_
seqday1_wind0_chill_c 15.0_14.3_17.4_15.4_14.9_15.1_15.9_15.6_13.1_
So in October, 3 i get a gustspeed of 3.7 knts = 6.8 km/h
Looking in my WUnderground I get a max gust for Oct-3: 72 km/h
So, why this discrepancy?
Re: Difference meteograph.cgi?text=all vs WUnderground
Posted: Tue Oct 05, 2010 10:40 pm
by admin
Looks to me like the gust peek was on October 4th. Please check with your graphs what they say.
WU sometime has timezone problems. When storm was near midnight, that might explain this a bit.
UTC and local time is identical in your timezone? Maybe, you forgot to set that correctly (or are you in the UK)?
Re: Difference meteograph.cgi?text=all vs WUnderground
Posted: Tue Oct 05, 2010 11:05 pm
by D70
Here is the generated graph:
I checked the dates and everything is OK.
Re: Difference meteograph.cgi?text=all vs WUnderground
Posted: Tue Oct 05, 2010 11:35 pm
by D70
By the way, I'm posting because I think that seqday1_wind0_gustspeed_kn refers to the max gust of the day, right? Or is this variable an average of gust winds of the day?
Re: Difference meteograph.cgi?text=all vs WUnderground
Posted: Thu Oct 07, 2010 1:28 am
by D70
??
Re: Difference meteograph.cgi?text=all vs WUnderground
Posted: Thu Oct 07, 2010 5:37 pm
by admin
looks like a tiny bug. But I will not change this, as to many programs make use of the current format. Please skip the first time stamp and you are fine.
Re: Difference meteograph.cgi?text=all vs WUnderground
Posted: Sat Oct 09, 2010 4:05 pm
by D70
Sorry, I didn't realise the meaning of your last post.
Again...
Looking for seqday1_wind0_gustspeed_kn in my first post I don't find any single value that approaches to 38.8 knts. So where is my mistake? Why Meteohub sent to weatherunderground 72 km/h (~38.8 knts)?
Re: Difference meteograph.cgi?text=all vs WUnderground
Posted: Sat Oct 09, 2010 5:02 pm
by admin
"seqday1_gust_speed" reports the average gust speed of the day, not the maximum.