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Leo Carrillo Sensor

 
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fradge



Joined: 21 Nov 1993
Posts: 13
Location: Secos

PostPosted: Sun Jul 01, 2007 5:12 pm    Post subject: Leo Carrillo Sensor Reply with quote

The Leo Carrillo Sensor is over rating the wind. Has anyone noticed this or is it just me?
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jpbassking



Joined: 19 May 1998
Posts: 2354
Location: Leo

PostPosted: Sun Jul 01, 2007 6:21 pm    Post subject: Reply with quote

yes, it seems to read high.
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kbshred



Joined: 15 Dec 1995
Posts: 18

PostPosted: Sun Jul 01, 2007 8:04 pm    Post subject: Reply with quote

Definitely - I usually figure I can sail at 17. Now it seems like I need to wait for it to read 19 or even 20 before it looks solid. Got suckered out there twice last week - hard to not to head out there with an 18 avg. reading. Anyone there today?? - Was the sailing solid at 18-19 in the PM??
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FredBGG



Joined: 01 Aug 2004
Posts: 725

PostPosted: Tue Jul 03, 2007 1:41 pm    Post subject: Reply with quote

I went up to the sensor and compared the reading with two hand held meters that I've had checked.

The sensor is reading spot on.

I checked the sensor when the wind was 7mph to a maximum or 11mph over about a 40 minute time span.

I was kiting Sunday and the wind was not that good low down, better with the kite a bit higher, also weak on the inside.

Cheers

Fred
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kbshred



Joined: 15 Dec 1995
Posts: 18

PostPosted: Thu Jul 12, 2007 10:26 am    Post subject: How was Wednesday early Reply with quote

I know it became sailable on Wednesday - by 23 I should hope so and I saw some of you guys on the camera. My question to anyone there is how was it earlier when it was reading a steady 17-18 (around 4PM-5PM or so) - thats usually sailable but has not been lately - kitable sure, sailable not so much. Any sailers there yesterday have any info?? Also - was it good 5.0 or better sailing when it was reading 23 later on?

Thanks
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mkrasnoff



Joined: 10 Apr 2000
Posts: 154

PostPosted: Thu Jul 12, 2007 11:28 am    Post subject: Sensor's seems okay Reply with quote

sensor seems okay to me.
When comparing NOAA/NWS readings for the lulls, they match what iwindsurf is posting. Check for your self. See link below.
http://www.wrh.noaa.gov/mesowest/getobext.php?wfo=lox&sid=LCBC1&num=48
Most of us were getting worked on 5.5-6.5 sails not wanting to re-rig and jink the wind. Late arrivals had the better sail choice.
There were a dozen or so sailors out on Wednesday shredding a classic Leo day. You couldn't buy a wave though. The wind setup was more of a winter or early spring clearing wind compared to a summer thermal. In fact, late in the day, it was downright cold when the sun was low in the sky around 7:45. A few of us were fortunate to hang around for the bonus wind bump late in the day.
The mantra for Leo is bring all the gear you own and rig for the current wind conditions. Mitch Cool
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windfind



Joined: 18 Mar 1997
Posts: 762

PostPosted: Thu Jul 12, 2007 11:57 am    Post subject: Is Leo sensor reading high? Reply with quote

Thanks for the Leo reports. We have been getting reports that the sensor is reading high and is broken. However when a sensor breaks it typically either stops reading or reads very low. (typically, when things break they do not spin faster) I suspect that the recent warm water is causing the wind to be very up and down and to lift from the water. So it is stronger at the sensor tower (or at high kites) than at the surface. Yesterday late and today should be a good test of that theory. Please let me know if the sensor seems significantly off today, Thursday July 12. On-site reports really help us learn how to forecast so keep them up.


mike@iwindsurf.com
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mkrasnoff



Joined: 10 Apr 2000
Posts: 154

PostPosted: Thu Jul 12, 2007 2:09 pm    Post subject: Reply with quote

Mike,

Glad you picked up the posts. I was just about to email you with my report from yesterday.
The only issue I have with the wind sensor at Leo is the direction. It's definitely off. It's not a big issue since most locals know the conditions.
A bunch of us have emailed iwindsurf about this over the last year.
My guess is that the sensor is off by 15deg.
NOAA/NWS will report W and the iwindsurf sensor will report WSW or SSW.
You can compare the readings on any day and see this.
When the wind is W at Leo, it shadows the inside cove because of the bluff windward and seems slightly offshore so the wind on the inside is very light but screaming beyond the buoy, but since the sensor is high up on the bluff it's not affected.

Thanks,
Mitch Cool
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tony



Joined: 05 May 1994
Posts: 60

PostPosted: Fri Jul 13, 2007 12:53 pm    Post subject: Reply with quote

I'm not convinced that the sensor is reading any different this season than last. Last season it started reading about 2mph higher than previously (I think the old WindTalker was replaced by a newer model sometime late 2005 or early 2006). I don't know which readings are more accurate. Also I agree with the person who commented on the direction being off. I don't think this sensor ever reports the wind as West whereas the old one used to. I don't know the details of how the direction sensor works, but it might be a missing segment rather than a rotational shift.
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capetonian



Joined: 11 Aug 2006
Posts: 895
Location: Oahu

PostPosted: Sat Jul 14, 2007 9:27 am    Post subject: Reply with quote

I sailed at Leo Carillo yesterday 7/13/07 from 6 pm to 7.30 pm with a 7.0 Ezzy wave. I was nicely powered. I weigh 200 lb, and prefer to sail nicely powered to over powered. The wind was very light on the inside as usual. Quite a distance out, I am guessing over 1 mile out, there was a windline where the wind was a lot stronger and the chop a lot bigger - large breaking white caps. I was almost overpowered once in this windline.
I would guess the sensor is accurate. I can't speak to the accuracy of the direction as I haven't been sailing at Leo Carillo long enough to know.
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