Heavy Rain This Evening

10:15pm…

Wow, sheets of rain at the coast the past few hours.  Rainfall rates up to 1/2″ per hour!  Astoria is quickly approaching 2″ for the day.

PLOT_Rain_NWOregon_Autoplot

Here in the valley the rain has been steady on the west side of the metro area but very light eastside.

PLOT_Rain_NWOregon_Autoplot2

That will change between now and 2am as a very moist frontal zone moves inland.  This is not a typical cool-season front.  Precipitable water, a measure of moisture available in the atmosphere, is quite high.  We’ve got a subtropical flow of air over us for the next 8-12 hours.  Warm air can hold a lot of moisture!

Models are insistent on not producing those coastal totals here in the valleys, even though the flow is from the south and not subject to the usual Coast Range rain shadow.  We’ll see, hopefully we don’t end up with 1-1.50″ in the valleys or that will be a forecast bust.

Enjoy the sounds of the rain falling overnight, our gardens and yards REALLY need it.

Chief Meteorologist Mark Nelsen

20 Responses to Heavy Rain This Evening

  1. ANDY says:

    Strange,23 earthquakes Mammoth lakes California in last hour?

  2. WEATHERDAN says:

    65 and cloudy in Salem at 1:30 PM. 1.04 inches of rain the last 24 hours. A lot more than I expected. This was the biggest rainfall since March 28th when we also had 1.04 inches. Overall trend for the next couple of weeks is mostly dry with a couple of weak systems hitting us and highs in the 68-76 range. Lows should be in the 48-56 range. Very pleasant Autumn weather ahead as we slide into October. Peace.

  3. Garron near Washington Square says:

    Another notch in the record belt! Low at PDX above 60, so I think that is 49 days above 60 d/f for the season. I have to say, it was a great night last night even with the rain since the temps were so warm!

    http://www.wrh.noaa.gov/mesowest/getobext.php?sid=KPDX&table=1&banner=off

  4. Tyler Mode says:

    One more post…then I’ll stop filling Mark’s blog with this link haha

    Time to decide on the 2015 calendar pics. I’ve included quite an assortment. These are in no order other than they order they were taken.

    Please tell me what number you like, or, better yet, post a link in the comments section!

  5. W7ENK says:

    0.11″ of rain yesterday.
    0.52″ of rain when I left the house this morning, and still raining.

    It was a dark, wet and lonely ride into downtown this morning, but I’m still at 100% for the September Bike Commute Challenge!

  6. Tyler Mode says:

    3 days ago the high temp was 95…geeze what a change!

  7. An average of 1″ so here, all since midnight. Impressive!

  8. ChiefWright (Marquam) says:

    Forecast bust approaching– 0.83″ in the bucket for 24 hrs at 0700 today, with plenty of green to come on the radar…

  9. schmit44 says:

    9/23/2014 Oregon (All) Temperature Summary

    Warmest:
    High:87 at BUCKHORN SPRINGS(2780 ft) & CW5984 Pilot Roc(1749 ft) & Medford, Rogue V(1329 ft)
    Low: 65 at ECHO(683 ft) & BLALOK(277 ft) & WYETH(102 ft)

    Coldest:
    High:52 at Timberline Lodge(7001 ft)
    Low: 41 at DIMLKE (4726 ft )

    Largest Diurnal Change: 34 degrees
    RED BUTTE (83/49 ) (4460 ft )
    Worden (77/43) (4080 ft)
    LAKEVIEW (77/43) (4770 ft)
    Lakeview, Lake C (77/43) (4734 ft)

    Heaviest Rainfall:
    2.32″ at HEBOWX Mt. Hebo(3160ft)
    2.26″ at TILLAMOOK(11ft)
    2.25″ at DW2405 Tierra De(13ft)
    2.13″ at MEARES Cape Mear(1421ft)
    2.12″ at W7KKE-3 Road’s E(89ft)
    2.01″ at YACHTS Yachats(82ft)
    1.99″ at EW1135 Yachats1(32ft)
    1.97″ at Astoria Regional(10ft)
    1.96″ at AA7OA Astoria(240ft)
    1.91″ at CEDAR(2220ft)

  10. John Liu says:

    I am unreasonably excited at the thought of a good rainstorm! I’m even hoping it is still raining tomorrow morning when I bicycle to work. This must be a symptom of serious weather boredom.

  11. Suppose that Portland only gets 0.5-0.8″ of rain out of this system somehow, and the Cascades about 1″, and not much more for the days later in the 7-Day. Then let’s assume that we get several days of warm and very dry east wind in early October. Is there any threat of fire danger returning if both outcomes were to happen?

    • David B. says:

      The issue is, it becomes increasingly hard to get a good run of days that is sufficiently warm and dry to dry things out and increase the fire danger as you get into October. Past mid-October, if things are damp in the woods, they will just tend to stay that way, even without much additional moisture falling.

      So I would have to say the odds don’t favor your scenario.

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