Storm Wrapping Up: 40mph Gusts In Valley and 70-90 Coastal Mountains

11:45am…

Highest gust in our viewing area was 90 mph on Meares Hill (around 1400′) just west of Tillamook.  Is it really August?  This is crazy to see gusts 40+ all over the place here in the valleys in late August.

Updated numbers…increased speeds this hour are in bold.

COAST

  • Cape Disappointment 61 70
  • Astoria 45  62
  • Cannon Beach 60
  • Garibaldi 61  74
  • Tillamook 38 46 48
  • Oceanside 77
  • Pacific City 65 68
  • Lincoln City 52
  • Gleneden Beach 53  56
  • Newport 58
  • Waldport 59
  • Yachats 56

COASTAL HILLS & OTHER MTNS (1,000’+)

  • Naselle Ridge (SW WA) 85
  • Megler Hill (SW WA) 78
  • Meares Hill 90
  • Mt. Hebo 76
  • Rockhouse RAWS 59
  • 3 Corner Rock (Gorge) 68

METRO AREA

  • Portland Airport 37 41 43 at 11:08am (39 mph was previous all-time August gust)
  • Troutdale 35  36 38 44
  • Corbett 34 43
  • Scappoose 30 33
  • Ridgefield 37 41
  • Vancouver 25 37
  • Forest Grove 31  36 38
  • Hillsboro 35 39
  • McMinnville 32 35 38
  • Aurora 32 45
  • Scotts Mills 36 40
  • Estacada 35 38
  • Salem 35  36 39
  • Happy Valley 33  39
  • Chehalem Mtn 48

For the weather geeks like me, a few thoughts for future forecasting:

  • Peak pressure gradients were around 9 millibars EUG-OLM, 10.0 OTH-AST, & 18.3 OTH-UIL.  That last one is very strong even in mid winter!
  • Lowest pressure of the low center appeared to be around 986 millibars, a bit stronger than models (even mesoscale models) forecast.
  • 12 hour forecast from GFS & ECMWF seemed to be a bit too far offshore and a little weak too.  Low came onshore just north of Forks, or at least just passed over the extreme NW tip of Washington.  Mesoscale models were better on placement on depth.  Surprisingly, even the NAM did pretty well.
  • For a storm that was totally out of season, models and forecasts turned out really well!
  • PGE says 27,000 were out of power at the height at the peak of the wind.
  • It was an unusually long recovery period power-wise.  Some folks didn’t get power back for 36+ hours.  Not sure if that was due to lack of manpower or too many small outages slowing things down?

73 Responses to Storm Wrapping Up: 40mph Gusts In Valley and 70-90 Coastal Mountains

  1. Recap: Well that was fun… Finally, we had a rather significant event and for August? That’s just icing on the cake. Finally, tracking an event and providing analysis(over on my facebook group) was not for nothing and it didn’t end up being yet another huge colossal waste of time. Nope! This one paid off! Who knew we wouldn’t only have some strong, gusty winds, but add the very active T-Storms early this morning. Crazy. These weren’t just our typical run of the mill storms either, at times the lightning was constant. The storm that hammered McMinnville had some nice structure to it and it was obvious the strong belt of shear just ahead of the front was in play. Now to the Wind. I’ve never tracked a low pressure area like this in August and I wonder if that sub 990mb low was the strongest ever off the Oregon coast during August. Heck, I don’t even remember the last time we tracked a low pressure area like this in October, or November for that matter. The Coast did well and forecast gusts of 65-75mph verified. That was a beauty absolutely classic on IR/WV imagery.

    Inland, it was gusty and I suppose there were enough 40mph gusts reported to say the Wind Advisory verified, perhaps on the lower end scale. The models did a pretty good job, but I’d have to say the NAM won this one. It handled the track the best and depth too. The WRF/GFS was too far offshore suggest the low would track either into central/northern Vancouver Island. The EC was close. The RAP if I remember had the low moving into Northwest Washington. None of the models were deep enough though. Overall it was the NAM that wins this one. The crummy, unreliable, often scoffed at and laughed upon NAM has improved. Maybe it will prove to be very useful this Fall and Winter. Is this a sign of things to come as we head into Fall? Impossible to know. Until the next one! …..

  2. W7ENK says:

    Well, that was one helluva weekend!

    What’s next?

  3. Jason Hougak says:

    Going to Govy. Mt. Hood’s got new snow at 8500 and above

  4. Power was finally restored at my place last night (10:05 pm) though some places locally are still out. Anyway, what a storm for late summer! Maybe this winter won’t be as boring as I thought…

    • David B. says:

      As I just posted below, if there’s an exceptionally strong El Niño (as models are currently hinting at), there’s real hope for above-average precipitation this winter here. It will also probably be warmer than normal, though even with that odds are it won’t be as bad a bust for snow as last winter, which was so exceptionally bad that the odds of a back-to-back repeat are very slim.

  5. Jake-(Gresham) says:

    So yesterday a few of my siblings and I went hiking up in the gorge. Amazing how the Cascades bring out the precipitation (got caught in a downpour on the way down). Anyways, here’s the viewpoint for you guys:

  6. schmit44 says:

    8/30/2015 Oregon (All) Temperature Summary

    Warmest:
    High:84 at LAKE OWHEE AND O(2400 ft)
    Low: 64 at RUFUS(185 ft) & ROWEWS(104 ft)

    Coldest:
    High:42 at Rim(7050 ft)
    Low: 28 at CROW FLAT (5172 ft )

    Largest Diurnal Change: 37 degrees
    Burns Municipal (74/37 ) (4144 ft )

    Heaviest Rainfall:
    2.50″ at NORTH FORK(3060ft)
    1.75″ at SOUTH FORK(2257ft)
    1.40″ at LITTLE MEADOWS(4020ft)
    1.21″ at EW6494 Florence(64ft)
    1.20″ at GREENPOINT(3310ft)
    1.10″ at SOUTH FORK BULL(2690ft)
    1.10″ at RED HILL(4410ft)
    1.10″ at BLAZED ALDER(3650ft)
    1.08″ at RED MOUND(1753ft)
    1.04″ at HORSE CREEK(3402ft)

  7. Ann says:

    Drove through a huge downpour near the Lloyd District about 2pm. Must have been a really narrow band of rain- SE Portland didn’t get it, and it doesn’t look like the airport did either.

  8. WEATHERDAN says:

    Storm total in Salem .64. A little more than I expected but a lot less than some had predicted. Ironic in that in early June we had a thunderstorm and .67. Then nothing for 87 days then another thunderstorm and .64. For the heat lovers and those that believe in models 10 or so days out more 90,s are forecast. Of course this is the GFS meteogram that forecasted 3.36 inches of rain between yesterday and Tuesday. Still it was a nice little storm. The rain on my face felt food. Now just a few light showers Tuesday and Wednesday then a sunny and warmer weekend with highs around 80. Summer just took a little break. Should be about 79 on Monday. Peace.

    • JohnD says:

      The rain in my face felt food too. Then I went inside and had some good. Hehe Just kidding. ‘Enjoy your posts Dan. Our weather is such a fun ride!

  9. High Desert Mat says:

    Pretty strange that once it cools Dow and rains a little with some wind that Dan doesn’t post as usual. No pun intended just being observant.

    It can’t stay warm or hot forever and be dry, it is the northwest after all.

    Very strong el Nino on tap for us all this winter and I for one am a little excited for the mystery behind it. Last one this strong was 17 years ago. How did that one play out? I vaguely remember it but I remember the year before was great.

  10. Andrew (Near Silver Falls 1600') says:

    Been out of town the past few days. Came back to find lots of small branches down off the Douglas fir trees, at the power went out at some point as everything is blinking.

  11. sds says:

    1.78 inch of precip. since Sat. morning and still coming down 6 mi. E of Woodland.

  12. DEL X V says:

    The forecasts and warnings of Friday/Saturdays storm were well done by the NWS and local weather persons, congratulations to all!
    Mark’s good blog advisories about the coming storm deserve special note!

  13. Jason Hougak says:

    Has the Pacific Ridge moved west??? Looking at it on infrared satellite imagery and looping the Pacific it appears that the storms are going up into Alaska and riding the ridge down the coast and into us. Another wave is off BC heading our way. Let’s pray this pattern holds.

  14. Jason Hougak says:

    Radar looking great with more steady rain moving in. The lungs feel hydrated again breathing in all the moist air.

  15. Jason Hougak says:

    Rained all night, what a welcome relief. Feels like Oregon again outside but still all the areas that haven’t gotten water this summer are still brown.

  16. David B. says:

    0.86″ overnight, 1.27″ weekend total so far.

  17. schmit44 says:

    8/29/2015 Oregon (All) Temperature Summary

    Warmest:
    High:93 at Rye Valley(I-84(2229 ft) & LAKE OWHEE AND O(2400 ft) & CW2049 Imnaha(1978 ft)
    Low: 70 at Rome(4049 ft) & GRASSY MOUNTAIN(4560 ft)

    Coldest:
    High:57 at IRISH TAYLOR(5540 ft) & Rim(7050 ft)
    Low: 48 at IRISH TAYLOR (5540 ft ) & Rim (7050 ft )

    Largest Diurnal Change: 34 degrees
    Baker City Munic (87/53 ) (3373 ft )

    Heaviest Rainfall:
    1.42″ at QUAIL PRAIRIE LO(3183ft)
    1.27″ at RED MOUND(1753ft)
    1.21″ at N7HAE Knappa(105ft)
    1.10″ at NORTH FORK(3060ft)

  18. Jason Hougak says:

    Power got restored about 12 hrs out, not too bad.

  19. MasterNate says:

    Not bad. We topped out at 48 mph but only managed a measly .16 in the bucket.

  20. David B. says:

    Well, that was dramatic. Spent most of the afternoon without power as gusts raged off and on. Been on the ham radio and listening to the local police and fire channels… LOTS of trees down, to the point that the fire departments weren’t even being dispatched for downed power lines at one point, too many to handle.

    • David B. says:

      0.43″ since this event began, 0.41″ in the past 24 hours.

    • David B. says:

      Rain is really starting to dump now, and the radar shows lots of yellows and oranges yet to come, so looks like I’m in for a good soaking tonight. Hope everyone to the south gets to share in some of the wealth.

    • Chief482 says:

      RE: FD response to down trees w/power lines involved. It requires resources, manpower & time. One incident can take up several hours for all agencies (power, transportation, etc.) to complete cleanup. To safely open the roads and provide for public safety is the main objective.

      Resources are stretched thin, conflagrations have taken the “best & brightest” from the local rural departments & sent them over the mountains to provide for structure protection. The rural areas are often delayed in mitigation, due to the remote location.

      Closing the roads & providing for scene safety is time & resource consuming, we spend hours at scene waiting for the responsible agencies to mitigate the hazard in the area so we can clean up debris damage, open roads and remove barricades and proceed to the next incident. The response from one incident to the next is non-stop during major storms. Hence the reason most emergency response personnel, especially us volunteers, don’t relish storm season. 🙂

    • W7ENK says:

      Ham radio? 🙂

  21. oldwxwatcher says:

    Wonder what Portland’s low pressure record is for the month. My weather station bottomed out at 29.51″ and I don’t recall seeing it that low in any other August.

  22. Um. says:

    All this talk of wind, what happened to the rain that was supposed to happen?

  23. Boring Oregon says:

    Is there supposed to be a second round of moisture tonight?

  24. Power has been out here since noon. We had wind gusts up to 50 mph here, which isn’t all that much compared to other places, but there is a lot of debris, tree branches & leaves lying around. Never seen such a wind in August before!

  25. Mattmann1972 says:

    Still very breezy out here in LO

  26. Ron Magnus says:

    Great to have this avenue as I am not a social media person. Had lightning and thunder around 4 this morning in SW Portland just north of Tigard. Some nice gusts at times but that has subsided now.

  27. schmit44 says:

    Time to get out the blower. My driveway looks like the day after a November wind event…. (very messy)

    • Dave in Battle Ground says:

      Yup. Me too. Just finished doing my roof and driveway. Felt like a November or February storm had just finished doing its worst!

    • Garron by Hillsboro Airport says:

      My wheel barrow tipped over! Is that covered by home owners’ insurance?

    • Boydo3 N. Albany says:

      Collateral damage report:
      Garbage can tipped over, rain water in boat, leaves on porch…
      slugs on the move.

  28. W7ENK says:

    Peak gust S at 23.6 mph at my mostly wind sheltered location.

  29. Farmer Ted says:

    A very mild pleasant day here, yes breezie but quite enjoyable, just a spritz of rain this morning. Storm must be elsewhere.

    • PurpleHaze says:

      Same here in the Salem area. Not too impressed but a good garden variety event. I wouldn’t call this a storm by any means and in the winter this would’ve been the lowest impact event you can get for a wind scenario.

    • leer` Geddy says:

      Well that’s like ppl in LA saying what storm? we got nothing here, this is a big storm historic for august with widespread damage across western WA and power outage. The storm itself is something we would see in December. Whidbey IS had a wind gust of 70mph that’s NEVER happened before. so yes I would call this a storm by all means.

    • Dave in south Salem (500') says:

      I’d call this a storm in Salem. We had thunder, heavy rain, wind blowing things over and power outages in the past 12 hours.

    • Garron by Hillsboro Airport says:

      If you were awake at 4 AM, like I was, it was an impressive storm! If you were sleeping, like normal people tend to do, sorry, u missed all the action! It looked like a photo shoot at a red carpet event twice this morning! Not the best for thunder, but the rainfall was impressive! Note to self…In the future, plan your lives around weather events…That’s if you are a weather nerd, u sleep when nature sleeps….

    • David B. says:

      It definitely was a storm here on Bainbridge Island. Significant tree and power line damage.

  30. EY (Oak Grove) says:

    Nearly 24,000 without power in PGE’s area. That’s pretty decent even in winter.

  31. Wendy-Silverlake, WA says:

    Just got power back on after being out for several hours. It’s a mess out there, but no rain. Still a little breezy but nothing like earlier. The rain however is just completely missing us.

  32. David B. says:

    Getting pretty wild out there up here. Have had several momentary power outages in the last 15 minutes.

  33. Jason Hougak says:

    Visible satellite showing a lot of wrap around moisture coming around back side from the gulf of Alaska. Should get good heavier showers with them.

    • David B. says:

      Something we all can use but particularly you folks in Oregon who mostly missed out on the mid-August event.

  34. Jason Hougak says:

    No power for last 2 hrs. Gusts over 50 mph

  35. Richard Hodges 160TH & SE Burnside Street says:

    A very refreshing whoosh of non-smoky, fresh air.

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