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windfind
Joined: 18 Mar 1997 Posts: 1901
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Posted: Mon May 13, 2013 9:50 am Post subject: To much of a good thing: the "heat bubble" |
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Gang,
Below is some imagery about the dreaded Southern California "heat bubble" that struck yesterday at some sites and will probably do the same today. In the images watch the "heat bubble" ooze out from the interior and over the coast. Then watch what it does to the wind graphs.
If you want to get the details head to the Weather Blog at:
http://blog.weatherflow.com/?p=13940
Or use the Weather Blog link in the left column of most pages.
Mike Godsey
iwindsurf.com/ikitesurf.com
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dllee
Joined: 03 Jul 2009 Posts: 5329 Location: East Bay
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Posted: Mon May 13, 2013 10:24 am Post subject: |
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You want a "bubble", try hanging around at Berkeley for a week.
That "bubble could easily cause 5-12 mph gusty holey breeze at the Basin while upwind of the Lordships can be solid 19-26mph.
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victor
Joined: 03 Aug 1998 Posts: 581
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Posted: Mon May 13, 2013 11:30 am Post subject: |
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don't think it would take a week to experience the berkeley bubble. more like any day between 3 & 4.
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windfind
Joined: 18 Mar 1997 Posts: 1901
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Posted: Mon May 13, 2013 11:54 am Post subject: |
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The Berkeley "bubble" is really not a "heat bubble" effect on most days. The causes of the The Berkeley "bubble" are a lot more complex and harder to forecast. But this Berkeley "bubble" is what makes the Hs. Lordships roof sensor seem so accurate sometimes and so inaccurate at other times.
Mike
iwindsurf.com
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cbknap
Joined: 03 Jun 1997 Posts: 373
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Posted: Mon May 13, 2013 1:42 pm Post subject: |
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That's interesting Mike. What's the pressure on either side of that isobaric line?
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windfind
Joined: 18 Mar 1997 Posts: 1901
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Posted: Mon May 13, 2013 3:45 pm Post subject: |
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I did not record the actual pressures. Remember that the lines really do not reflect the reality that there is a gradient between each line not a sudden drop in pressure. It would be interesting to have someone drive with a recording barometer from the interior to the coast on "heat bubble" day.
Mike
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capetonian
Joined: 11 Aug 2006 Posts: 1197 Location: Florida
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Posted: Mon May 13, 2013 5:06 pm Post subject: |
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Wow, Cabrillo is 28 mph gusting to 32 right now.
@#$%# Mondays!!!
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dllee
Joined: 03 Jul 2009 Posts: 5329 Location: East Bay
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Posted: Mon May 13, 2013 5:45 pm Post subject: |
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The "Berkeley Heat Bubble, while world famous, must be caused by all the hot air circulating amongst the windsurfer's who show up and get skunked.
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dabull1
Joined: 19 Mar 1997 Posts: 556
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Posted: Tue May 14, 2013 12:05 am Post subject: |
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10:04 pm Leo still averaging 20.5 WNW....WHERE'S A FULL MOON!!!! Bull
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MalibuGuru
Joined: 11 Nov 1993 Posts: 9300
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Posted: Tue May 14, 2013 12:13 am Post subject: |
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dabull1 wrote: | 10:04 pm Leo still averaging 20.5 WNW....WHERE'S A FULL MOON!!!! Bull |
It was smoking today at Secos! It went from cool to hot and back to cool on the water today. You could feel the heat bubble trying to take over.
This is like the middle of summer. 63 degree water, and thermals blowing all day. PS> at 10:15 it's 25 mph with gusts to 30!!!!
Capetonian, that's why they call Cabrillo "Hurricane Gulch". I hope it's like this for the races this summer.
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