Typical April Showers Ahead

6pm Tuesday…

Here we are…it’s April in the Pacific Northwest.  The weather?  Pleasant, but uninspiring for meteorologists.   This past weekend was wonderful with mainly sunny skies and temperatures above average.  Lots more clouds yesterday and today but not much rain so far for MOST of us.  Today the only real soaking has been south of Portland

Rain Metro Today Databound

We are in a bit of a “split-flow” right now, but the jet stream consolidates a bit Thursday and beyond.  So we’ll turn wetter the 2nd half of the week.   The ECMWF shows a good 1-2″ rain in the lowlands of western Oregon now through Sunday

ECMWF Precipitation Accumulation

There have been hints of a surface low moving close to the coastline Friday or Saturday, but each model and model run has been different.  It IS possible to get a windstorm in early April (April 7th 2017 storm) but rare.  I’ll keep a close eye on that possibility.

Otherwise it’s all about showers, sunbreaks, and make-up time for the very dry March.  We only saw about 50% of our typical rain last month.

By the way, this morning we tied a record for a warm low temperature.  It was the warmest of the season so far, more like June than April

I don’t see any significant warm spell coming up.  The ECMWF ensembles don’t point to any sort of ridging overhead, no big swings up or down


Those surface temps are typically too cool, it’s fair to add about 5 degrees to those temps.

It can get quite warm (usually just for a few days) in April.  Last year we hit 86, and the all-time record is 90 in Portland.  More typical is a monthly high somewhere around 80.

April Warmest Temp

April is typically also a month where we transition from wet to dry.

April In Portland Stats

Some years it’s a soaker, other years quite dry.  Last year was unusual with a tremendously wet first half then our dry season began the second half of the month.  May was extremely dry last year as well.

There you go, your early April update…

Chief Meteorologist Mark Nelsen


13 Responses to Typical April Showers Ahead

  1. W7ENK says:

    Now the NWS is at it, with higher rain totals over a shorter time span. Forecast is calling for almost 3 inches at PDX Saturday through Monday.

    Who wants to bet this won’t even come close to verifying? Anyone?? My guess is we’ll end up at least a full inch short…

  2. W7ENK says:

    Only 0.13″ of rainfall yesterday, most of which fell during the band of heavy showers (sans thunder) that rolled through around 8pm. That’s a roughly 0.38″ deficit after Day 1, behind what had originally been forecast through Sunday. We’ll see if today plays out any better. When I left for work this morning I’d already had 0.10″ in the gauge from overnight.

  3. Jason Hougak says:

    Torrential downpour here in the foothills. Looks like some melting snow and heavy rains will start to cause flooding issues.

  4. paulbeugene says:

    Thunderstorm in Eugene…rather heavy precip with low tops as not seen on radar …several rolls of thunder

  5. Ken in Wood Village says:

    The radar is looking very interesting. Someone on Facebook reported having thunder next to Eugene. Maybe we could have some exciting weather tonight 🙂

  6. Roland Derksen says:

    A fairly sunny afternoon in store for us today, but rain is going to dominate (with some wind) for the following 3 days. I expect we’ll have more than all of March’s total amount by Sunday morning.

  7. Mike says:

    Fourth driest March on record in Eugene (1.09′.). Hoping the nice start to April continues.

  8. Larry says:

    Aprils showers bring May flowers!

  9. W7ENK says:

    Not surprised to see rain totals already backing off from just 24 hours ago, though yesterday yielded 0.24″ at my place, which is in line with the local Wunderground stations around me, but inconsistent with Mark’s map at the top.

    • Joshua Lake Oswego says:

      Today and tomorrow look almost entirely dry now. We need the rain badly. Oregon has the most drought coverage of any state in the nation.

  10. Anonymous says:

    Welcome back! Went to Cinque Terre several years ago and did the hike from north to south. My favorite hike of all time. Just an amazingly beautiful location.

  11. JERAT416 says:

    Dullsville for sure. This isn’t bad though. The showers and sun breaks are about as average as we get. The heat can wait for a while. Let’s hope for some thunderstorms!

  12. Roland Derksen says:

    Skies are overcast here now with high and middle clouds. it’s going to be a warm evening because the sun shine earlier in the day.

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