ECMWF Monthly Maps

Here you go, the twice weekly one month maps from last night’s ECMWF run.

500za_week1_bg_NA

500za_week2_bg_NA

500za_week3_bg_NA

500za_week4_bg_NA

And here is the 12z ECWMF ensemble chart.  Snow levels very low about 9 days from now (NEXT Tuesday-Wednesday) briefly as a cold trough passes by.  Then slightly warmer until Days 12-16 when some members show ridging closer to us for warmer temps but other members show more cold troughing.

Here’s the chart:

tseries_850t_000-360_Portland

Chief Meteorologist Mark Nelsen

32 Responses to ECMWF Monthly Maps

  1. snodaze says:

    Why do people “thank Mark for the update”

  2. W7ENK says:

    Thanks for the update, Mark.

  3. paulbeugene says:

    Winter isn’t over. After having to sit on the sidelines watching the East USA endure another potential big ticket winter storm toward the end of this week, looks like we may see snow levels below 2000′ for much of the following week. I say 50/50 chance of snow to valley floor before the end of the month.

    Cliff Mass really took it to the US Govt for misappropriation of resources by the NOAA/NWS……might as well use the computers to forecast weather for the next week on Titan while you’re at it. Looks like the high temperature there tomorrow will be -282C, with a low of -300C…chance of methane showers, possibly heavy at times. Warmer on Wednesday with a high of -280C.

  4. Ron says:

    I look into my late winter crystal (smudged plastic) ball and I see blowing and drifting drizzle inside of day 10. T Record amounts of drizzle coming our way. The GFN (PNW’s very own (Good For Nothin) 00z, 6, and 12 show the time finally moving up. TWC will name it something like Drizzleagedon 2013. Mark will make a new graphic for this epic event and it will show one slug, two slugs, or three slugs, using his new slug-chill chart. It’s the measure of moss, warm rain, and the success of slugs mating. Well, that’s our late winter round-up folks.

  5. SNOW! says:

    Starting to love that 7 day forecast at the end. Highs in the mid 40′s and lows close to freezing. The start of a mild arctic blast! :)

  6. Ben T says:

    For snow,right?

  7. Tyler Mode in Battle Ground says:

    Remarkable agreement in the Ensembles out 6 days.

  8. Ben T says:

    Poose, you in!?

  9. Ben T says:

    Not everybody :)

  10. Setting up for a cold, wet nasty March. Just when everybody is wanting the sunshine ;)

  11. Ben T says:

    It’s the ECMWF folks, we’re getting snow.

  12. karlbonner1982 says:

    Ensemble chart, Mark?

  13. Dave in SW PDX (235') says:

    Thanks for the new post, Mark. Did you forget to post the 12Z ECMWF ensemble chart?

  14. TraciG says:

    So there is still a chance to see snow?!?!?!

    • Dave in SW PDX (235') says:

      We might see some flakes in the air in a week or two, but I’m afraid accumulating snow is very unlikely this late in the season, at least in the Willamette Valley.

  15. Tyler Mode in Battle Ground says:

    Yawn…Bring on a ridge…well, we still need some rain, maybe just overnight heavy showers?

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