satellitehead
Registered:1257988353 Posts: 3,687
Posted 1293062544
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#1
Jon and others in southern Cali... Hope y'all make it through the flooding and potential mudslides happening right now. Check in with us to let us know you're alright!
__________________ Jason
Atlanta/Grant Park area - z8
pitangadiego
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Registered:1188871011 Posts: 5,447
Posted 1293066398
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#2
Looks like it is mostly over for now, but more coming for the weekend, maybe. 5-1/2" of rain here. I am sure Sue had twice that. This is called a Pineapple Express. Warm tropical moisture all the way from Hawaii gets sucked in by a large low pressure. It acts like a huge hose, and wherever it points, gets hammered. Everyone else is relatively dry. LA was at the center of the hose, and we are at the fringe. They got 10-15 inches, and we got much less. If the "hose" points to the Sierras, they end up with 2 or 2-/12 times normal snow pack. Mammoth Resort had 9' of new snow by Monday, and should have 20' or so now. The problems come when the soil gets super-saturated, and all the extra weight causes large chunks of clay soil to move, causing landslides.
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satellitehead
Registered:1257988353 Posts: 3,687
Posted 1293074686
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#3
I have seen there have already been a couple of serious landslides. Had our SoCal fig friends in the back of my mind the last 48 hours or so. Quick funny: My parents are in town to spend time with their new granddaughter, and my mom laughed in disbelief when I explained that "Pineapple express" was actually a weather phenomenon. I had to go online and prove it to her.
__________________ Jason
Atlanta/Grant Park area - z8
noss
Registered:1244523274 Posts: 2,122
Posted 1293076642
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#4
Was that 20 feet of snow, Jon? I can't even comprehend 9', never mind 20'. I didn't know anything was happening out that way. God be with you all. Never heard of the "Pineapple Express" before
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satellitehead
Registered:1257988353 Posts: 3,687
Posted 1293084011
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#5
More info: http://en.wikipedia.org/wiki/Pineapple_Express That's what I had to show to my mom for her to believe me ;)
__________________ Jason
Atlanta/Grant Park area - z8
rafed
Registered:1252876934 Posts: 5,308
Posted 1293111457
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#6
Jon, Where is Mammoth Resort? About how far is it from you? And I "Assume" it is in high elevation? I heard Colorado was supposed to get hit with 8' of snow but haven't heard it actually happened. 20' of snow is way too much for any place in North America. Hope all is O.K. with you.
rafed
Registered:1252876934 Posts: 5,308
Posted 1293111818
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#7
Never mind the elevation question, Just googled it. Duhhh I passed by that place a couple months ago. Beautiful area. Yah, I say they did get hammered.
pitangadiego
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Posted 1293115741
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#8
Yes, 20'. Mammoth is in the Sierra Mountains, SE of Yosemite, and S of Lake Tahoe. Yosemite is mostly on the west side of the Sierras, and Mammoth is on the backside (E side).
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svanessa
Registered:1189292564 Posts: 905
Posted 1293120840
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#9
New records set for rain fall in San Diego County.
Ramona had nearly 8" of rain so far. That's about our yearly total! It was great! Love the rain.
7 day precipitation records broken or tied for the period December 16 through December 22... Location new record (ins.) Old record period of record Alpine 6.27, 3.21 in 1978
Campo 5.83, 4.32 in 2008
Escondido 8.30, 7.21 in 1921
Palomar Mountain 18.23, 9.95 in 1938
Ramona 7.99, 5.98 in 1945
Palm Springs 3.47, 1.67 in 2008
Big Bear Lake 14.29, 5.07 in 1978
Palomar Mountain is only a few miles from here and they got 18" of rain. That's amazing for this area...
Sue
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Zone 9B, 1946'
Ramona, CA
San Diego County