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Thread: Lift Alert: Wave Sat, Cu Sun Sept 18-19

  1. #1
    Join Date
    Jan 2011
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    Menlo Park, CA
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    977

    Lift Alert: Wave Sat, Cu Sun Sept 18-19

    Looking like a nice WSC weekend with Saturday wave starting around 1p, strengthening during the day past sunset:
    Click image for larger version. 

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ID:	6569 13k 2p Click image for larger version. 

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ID:	6570 19k 6p Click image for larger version. 

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ID:	6572 700mb 0Z, moisture not an issue except up north

    and Sunday a cu day, perhaps a bit breezy:
    Click image for larger version. 

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    2 good days on a weekend, with what should be NO smoke (at least Saturday) woohoo!
    Last edited by Kempton; 09-14-2021 at 03:14 PM.
    Kemp
    ASH-25 (FNX)

  2. #2
    Join Date
    Jan 2011
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    Menlo Park, CA
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    Re: Lift Alert: Wave Sat, Cu Sun Sept 18-19

    Update Thu, Sat wave looks slightly weaker, but later in the day more continuity and less moisture up north:
    Click image for larger version. 

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ID:	65732p 13k Click image for larger version. 

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ID:	6574 6p 18k Click image for larger version. 

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ID:	6575 700mb 0Z

    with Sunday looking like wave up to 1 or 2p, then windy cu the rest of the day:
    Click image for larger version. 

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ID:	65769a 16k wave, but rain possible: Click image for larger version. 

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ID:	6577 but gone by noon-ish Click image for larger version. 

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    Click image for larger version. 

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ID:	6579 the wave goes to noon-ish, then transition to valley cu 2p-ish Click image for larger version. 

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ID:	6580

    A rich weekend for sure, will you be there? FNX plans to fly both days.
    Kemp
    ASH-25 (FNX)

  3. #3
    Join Date
    Jan 2011
    Location
    San Jose, CA
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    306

    Re: Lift Alert: Wave Sat, Cu Sun Sept 18-19

    I'm planning to fly this weekend and possibly on Monday.
    Pete Alexander -- 98

  4. #4
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    Re: Lift Alert: Wave Sat, Cu Sun Sept 18-19

    Looking good for Saturday, wind speeds at all levels picked up 5-10kts and the front has conveniently slowed for the day. Ground winds light in the morning, picking up to 10-12kts SW by 6p per RASP.
    Click image for larger version. 

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ID:	6581 and the 700mb NAM for 1p Click image for larger version. 

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ID:	6582
    Last edited by Kempton; 09-17-2021 at 04:22 PM.
    Kemp
    ASH-25 (FNX)

  5. #5
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    Jan 2011
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    638

    Re: Lift Alert: Wave Sat, Cu Sun Sept 18-19

    TG is planning to join.

    Ramy

  6. #6
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    Jan 2011
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    638

    Re: Lift Alert: Wave Sat, Cu Sun Sept 18-19

    The forecast just keep getting better and better for wave on Saturday and post frontal cu Sunday!
    also looks like smoke will not be an issue.
    hope to see some of you at WSC this weekend.

    Ramy

  7. #7
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    Re: Lift Alert: Wave Sat, Cu Sun Sept 18-19

    Saturday's wave worked out nicely, we all could have launched near sunrise, this is the sat pic at 710a:
    Click image for larger version. 

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    but hey, other things got in the way of that. As it was I flew up on a UAL flight from SBA to SFO, drove to WSC, assembled with lots of help, then launched with Ted at 1p. While waiting, this is what the sky looked like at 1212p:
    Click image for larger version. 

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ID:	6592 view S Click image for larger version. 

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ID:	6593 view W Click image for larger version. 

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ID:	6594 view NW. Notice the front coming in.

    Wave was working off the Cortina's so easy to get off and climb in front of some beautiful mix of classic lennies and robust clouds:
    Click image for larger version. 

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    However, right as we release, my right contact lens decides to stick to my eyelid, so Ted was PIC while I debugged that for a few minutes.

    I had ambitions to get up to Hoopa, but none of us (Matt Gillis, Ramy, Pete, Jeff, etc.) couldn't get much past Elk Creek due to the heavy cloud. Ted and I worked the Indian Valley area:
    Click image for larger version. 

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    trying to find a way to the Snow primary where I believe we could get high enough to be on top and then go north. Finally got to the Snow wave but the hole wasn't that big, perhaps a half mile across. We're climbing at 4-5 knots, but about 15 minutes too late, the moisture came in to rapidly start filling the hole. We pulled the brakes to scoot under a shelf to the south. You can see on the trace our 6k drop in about 2 minutes. So we headed south where there was much more headroom, joining up with Ramy and Pete where we climbed along the big, fat Capay wave cloud, just east of the casino (video):
    https://drive.google.com/file/d/1Qkh...ew?usp=sharing
    and
    https://drive.google.com/file/d/1s0j...ew?usp=sharing

    Enough fun, we head back burning off altitude. We almost didn't make it back tho, as I got complacent, toured over to the Maxwell power plant and only realized too late we were in 6kt sink and now marginal glide to WSC. I immediately head west to get out of the sink and work my way to a shreddy wave cu where we thermal for a bit, then come in. The wind was from the west peaking mid-day at 16-17kts, but when we landed around 550p, it was only 8-10kts out of the west. I landed on 16 dirt and at a slight angle for practice. Whew!

    The evening was beautiful as WSC can be:
    Click image for larger version. 

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ID:	6599 with the Buttes sunbeam, and to the west Click image for larger version. 

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ID:	6600 this pic is unfiltered, as-is off my iPhone 12.

    OLC
    https://www.onlinecontest.org/olc-3....l?dsId=8643692

    Will post my super Sunday flight with Erik next...
    Last edited by Kempton; 09-21-2021 at 02:14 PM.
    Kemp
    ASH-25 (FNX)

  8. #8
    Join Date
    Jan 2011
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    Menlo Park, CA
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    Re: Lift Alert: Wave Sat, Cu Sun Sept 18-19

    Erik’s Convergence day

    Many of you have met Michael and Erik Thomsen, they have an ASW-24 "ET" with the alien graphic on the side of the trailer. Michael works at Tesla and Erik, his 16 years old son, has 25 hours with aspirations to fly and make a career in aviation. Both of them look to be excellent XC pilot material. I brought up the idea with Michael of possibly pair flying on Sunday. Michael said he’d probably be exhausted after driving up from Southern California however Erik would be up for co-piloting.

    So on Sunday Erik and I launched at 11a for what promised to be a very good post frontal day. My goal, as with all young WSC pilots, is to give them such an incredible out-of-box XC soaring experience that they are hooked for life to make soaring a top priority.

    The clouds were about 6-7k on Goat and Snow. We released over Indian Valley and glided into the first clouds closest to us on the Goat Ridge. On the north side of Indian Valley Reservoir, with only about 1200 feet below clouds, we get hit with a 11kt thermal, unbelievable! 3 turns and were at cloud base. I said to Eric “That was incredible, that'll probably be the strongest for the rest of the day!” Unfortunately I was correct

    The forecast hinted at a Snow wave, so we went over to see if that was indeed possible, but with a very tall cumulus right on top of Snow, and no hint of wind, I deemed that a fantasy forecast, and so didn't think about wave for the rest of the day. We worked our way north along the east foothills with cloud base slowly rising as we got to Yolla:
    Click image for larger version. 

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    On Eagle Peak we curved around toward the T15-T16 Ridge amazed at the amount of fire damage:
    https://drive.google.com/file/d/1PR_...ew?usp=sharing

    Erik was flying more now and we could see our way clearly to Buckhorn and possibly beyond. The TFR would prevent us from going into Trinity but over the last couple years I’ve favored flying from Yolla to Buckhorn and straight up the ridge towards Mt. Eddy. I did this in June with Philip and got from Stonyford in the morning to NE of Montague in less than 3 hours along this route.

    Buckhorn had plenty of cu, so we climbed a bit and kept on towards Eddy. At this point it was a couple hours for Erik, coming up on the longest he's ever flown, and I asked him how he was doing, and he said he was a bit sleepy so I said, “It's ok to take a nap, this is alot to take in.” So he slept for 30 minutes while I flew on along a great convergence to just about Mt Eddy:
    Click image for larger version. 

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    The Trinity fires were still smoldering but look to be on their last legs:
    Click image for larger version. 

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    Cloud base kept going up and we hit the high point of our flight at 9200ft when we turned at 2:20p. I woke Eric up so he could fly and take in the view.
    Click image for larger version. 

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    By this time the convergence had moved east several miles and was not only well defined but was like 2 miles wide:
    Click image for larger version. 

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    I’d never seen a convergence line this wide before, so we just took in the dreamy scene, as you'll hear Eric say in the video:
    https://drive.google.com/file/d/1B8w...ew?usp=sharing
    https://drive.google.com/file/d/1r0S...ew?usp=sharing
    https://drive.google.com/file/d/1Z6g...ew?usp=sharing

    We flew straight ahead bobbing and weaving along the convergence for 70 miles well out into the Central Valley, almost to T16. Heading to Elk Creek, we pass over the NEW Elk Creek strip, by now paved, and lookin' mighty fine:
    Click image for larger version. 

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    Got a couple climbs and with 36:1 on the field we bounced the last set of clouds and came in at 4:30p. Clocking 5.5 hours, it was by far Erik’s longest flight and he was, as many co-pilots are after a long flight, a bit overloaded, but also amazed by what he’d just done.

    I hope to see Erik and Michael at WSC more this season!

    OLC:
    https://www.onlinecontest.org/olc-3....l?dsId=8645213
    Last edited by Kempton; 09-22-2021 at 01:16 PM.
    Kemp
    ASH-25 (FNX)

  9. #9
    Join Date
    Mar 2015
    Location
    Santa Rosa
    Posts
    226

    Re: Lift Alert: Wave Sat, Cu Sun Sept 18-19

    We always have to wait for Kempton's report, but always worth the wait! Terrific reporting and photographs!

    Very interesting that Elk Creek has been paved. Now an excellent landout option!

    Getting young pilots turned on to soaring is important work and you do it so well..congratulations!

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