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Thread: Wave watch: Mon Jan 18 (MLK day)

  1. #1
    Join Date
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    Wave watch: Mon Jan 18 (MLK day)

    This morning's GFS run surfaced an offshore setup Mon and Tue Jan 18-19:
    Click image for larger version. 

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ID:	6041 Norcal RASP 2p Mon Jan 18
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ID:	6040 700mb 4p Mon Click image for larger version. 

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ID:	6043 500mb 4p Mon Click image for larger version. 

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ID:	6042 700mb 4p Tue
    And windy, but so far, not terrible on the ground at 8a:
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    So will watch and update. If holds close to this, FNX will fly Monday.
    Kemp
    ASH-25 (FNX)

  2. #2
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    Re: Wave watch: Mon Jan 18 (MLK day)

    TG planning to join...

    Ramy

  3. #3
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    Re: Wave watch: Mon Jan 18 (MLK day)

    Update Fri eve.
    Forecast is not wandering too much, esp. given that it's a cutoff low. Monday looks very good, but Tuesday is the best offshore setup I have ever seen, even beating the Nov 2013 setup I flew with Pat Alford, from my "early" NE wind days.

    On that Nov 2013 flight, the 500mb, 18k ft altitude wind was 35-40kts. For this Tue it's 60kts, so more energy, but not too much:
    Click image for larger version. 

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ID:	6047 500mb 102 hr Norcal RASP

    What's even more spectacular is, look at this cross section profile:
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ID:	6048 You could jump off a mountain top and go up! Lift down to the ground, amazing.

    Monday is looking pretty good, but the 500mb flow is a bit strong at 90-100kts
    Click image for larger version. 

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ID:	6049 500mb 3p

    but not quite aligned with the 850mb level:
    Click image for larger version. 

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ID:	6050 850mb

    So the plan is Jim Darke and I fly Monday aiming for 1000km, and Tuesday is a 1250km day. Ramy and possibly John Cochrane will fly Tue.
    Kemp
    ASH-25 (FNX)

  4. #4
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    Re: Wave watch: Mon Jan 18 (MLK day)

    Kemp ~

    Thanks for the heads up!

    Tell me about the 1,000 km task you are thinking...
    Pete Alexander -- 98

  5. #5
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    Re: Wave watch: Mon Jan 18 (MLK day)

    Pete,
    Task is zig zagging along the length of the range, Hyampon/Hoopa (if we can get there) and Napa:

    108sm Goat - Hyampom H47 10a
    180sm H47 - Napa KAPC 11:15a
    180sm KAPC - H47 2:30p
    180sm H47 - KAPC 3:45p
    66sm KAPC - CN12 4:45p
    714sm total, 9 hr task time

    Per se, we're not going to Hyampon/Hoopa, but rather on the ridge west of those places, but I use those airports as approximate TPs.

    Yesterday's 90-95kt wind at 18k have backed off to 70-80kt, so that's good. I've budgeted 3 hours for the upwind slog on Monday. Same task for Tuesday.
    Last edited by Kempton; 01-16-2021 at 10:39 AM.
    Kemp
    ASH-25 (FNX)

  6. #6
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    Schleicher ASW-24
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    Re: Wave watch: Mon Jan 18 (MLK day)

    Kemp,

    I overheard you mention on the webinar on Saturday that Tuesday was looking good for wave, as well as Monday.

    Looking at the sounding for Black Butte (1 PM PST Tue) , it's the kind of air you're looking for - REAL stable, and not too moist.

    Have fun.

    Click image for larger version. 

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    Peter Kelly

  7. #7
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    Re: Wave watch: Mon Jan 18 (MLK day)

    Monday January 18, 2021 08:05 Launch Winds NNW 25 gusting into the 40's

    Kempton Izuno & Jim Darke in FNX towed by Ben Mayes in 7Y
    and
    Ramy Yanetz in TG towed by Nick Mayes in 30Z

    Radio call between Nick and Ramy about crab angle. Ramy responded "This is the biggest crab angle I have ever made"

    You can follow their progress on Flarm - GliderTracker - OGN Websocket Client

    or

    Spot Trackers - Soaring Society of America (ssa.org)


    Click image for larger version. 

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    08:30 FNX- Off tow at 7K in Goat Wave with 7-8 kts going thru 8,000' with TG
    08:31 FNX - Going through 9,000' 8-12 kts
    08:33 FNX - Winds 030 at 29kts
    09:01 FNX - 16K going to push North to explore around Snow - TG following
    11:55 FNX - FNX & TG St Helena Wave 15,500 in 2-4 kts heading to either Napa or Mt Tam
    15:00 FNX - 12.5K South of Mt Konocti heading North to next Wave. TG still over St Helena ( Surface Winds at Williams 30 MPH gusting 35 MPH + )
    15:50 FNX Safely Back on the Ground and in the hanger.

    Click image for larger version. 

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    Last edited by Noelle Mayes; 01-18-2021 at 04:15 PM.

  8. #8
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    Re: Wave watch: Mon Jan 18 (MLK day)

    Noelle ~ Thanks for the photos and info.

    Nice flights Kemp & Ramp!
    Pete Alexander -- 98

  9. #9
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    Re: Wave watch: Mon Jan 18 (MLK day)

    Thanks everyone, these two days were very interesting.

    Yesterday, Monday, after Noelle's 11:55a update in the St. Helena wave, we went south to see if we could get to Napa. Got a few miles down the valley to about Yountville and lost the scent, so then went to the Sonoma wave point. Ramy had marked this before for his cross Delta flights from Byron, so I wanted to try. Weak, but good to have.

    At this point, we decided to go for Mt. Tam. My other Marin Headlands flights were May 1, 2016, Mar 31 2017, and Oct 7, 2018.

    Last time I was here, Oct 7, 2018 with Ramy and co-pilot David Moruzzi, we hadn't talked to NorCal approach and consequently Noelle was called by NorCal approach and we were asked to leave as we were an unknown obstacle to incoming airliners. This time, I called to let them know we planned to go to Mt. Tam. As I'm not a power pilot, I'm a bit out of my expertise to talk with ATC, but I did, and it went very well. It was easier as airline traffic is down, not many privates flying on a windy day, so the chatter had enough gaps I could easily jump in. Had to ask for the squawk code & frequencies a couple times, but no problem for the repeat. A bit a chuckle when asked "Say again type of aircraft?" And, "Are you with (Ramy's N-number) ?" Ramy has ADS-B so they know exactly who & where he is 8^) They requested to call them if we dropped below 14k ft. And that was it!

    Anyway, since I have to stay on frequency with Center, Ramy and I couldn't talk, so before I called Center, we agreed that he'd just follow me. This worked out well. The views was especially fantastic:
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    With the re-config of the SFO airspace, this waypoint is a couple miles inside Class B. But with a transponder, a glider can fly over Class B. Even tho the Muir Beach wave waypoint didn't work, we enjoyed the view for a minute, then started the 90 mile return trip into the 40-50kt headwind.

    This is my 4th trip to this point and return to WSC. The first time, I thought for sure I'd land out. But each flight shows there are plenty of wavelets along the way, and we weren't disappointed. Wave right over downtown San Rafael, Novato near Gnoss field, Petaluma wave point worked, and from near Kenwood, there was a straight-line lift line to almost Calistoga when we hit some tremendous sink and rotor. Up to this point, Ramy and FNX were never more than a couple miles apart which really helped in finding lift. Back at St. Helena, we decided to head back in, and Ramy went back down to Napa, finding the wave, and then returned to WSC. A great day.

    Oh, and the landings were interesting into the 32-34mph headwind (thanks Noelle for the video!):
    https://drive.google.com/file/d/1IoD...ew?usp=sharing

    OLC:
    https://www.onlinecontest.org/olc-3....247252#comment

    Tuesday's post next....
    Last edited by Kempton; 01-23-2021 at 08:00 AM.
    Kemp
    ASH-25 (FNX)

  10. #10
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    Aug 2014
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    Re: Wave watch: Mon Jan 18 (MLK day)

    Still waiting for that tuesday write up, Kemp! It must have been an interesting day. Your fans are waiting...

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