Record Warm April

11pm Sunday…

You just experienced the warmest April we’ve ever seen here in Western Oregon.  That’s assuming you are younger than 80-90 years old.  Here in Portland it was the warmest on record

MarkApril_RecordWarm

Those records go back to around 1940.  April 1926 and 1935 were warmer in many places though so in those spots it wasn’t the warmest on record.   Regardless, we are in a 26 month warm period that shows no sign of ending; we’ll see if a possible La Nina this fall/winter puts an end to that (or not).

We broke another record last month in Portland…most days in April above 70 degrees

MarkApril_70DegreeDays

A strong upper-level high is just to our northeast and tomorrow we’ll be in a southeast flow overhead.  That plus some moisture and some decent instability  mean we COULD get a thunderstorm in the late afternoon or evening in western Oregon.  Models are definitely not as bullish on thunder prospects as they were with the event last week so I’m not quite as wound up about it this go around.

So…we MIGHT see something interesting in the late afternoon and evening so I’ll be watching that radar pretty closely!

Chief Meteorologist Mark Nelsen

19 Responses to Record Warm April

  1. My alter ego says:

    This Summer definitely starting out much warmer than last year. I say Summer because we now seem to be in a Summertime pattern. More 80,s Friday and Saturday then some morning clouds and cooler for a couple of days. Then more 80,s by about next Wednesday. So maybe 12 days over 80 so far by mid May. Normal through June 30 used to be about 16. Yikes. If this keeps up which maybe it won’t, the three hottest Summers in Salem since 1892 when they started keeping records have all been in the last three years. OK by me. Peace.

  2. Boydo3 N. Albany says:

    Here’s hoping the big picture makes the predicted big switch..
    http://www.cpc.ncep.noaa.gov/products/analysis_monitoring/lanina/enso_evolution-status-fcsts-web.pdf

  3. 86.5F for the maximum temperature here today. I’ve been keeping watch on the southern horizon since about 3pm, as I’ve been seeing some patchy Ac clouds moving up from there since then.

  4. paulbeugene says:

    Lots of stratiform cumulus in south valley. Not looking good for t storms. Must be some sort of cap

  5. W7ENK says:

    Lots of ACCAS over the area this morning.

    I was surprised, because I didn’t think we were supposed to get thunderstorms until tomorrow. Now I see a lot of CU/Cb building over the Cascades to the SSE of Downtown.

    Hoping for some excitement this evening! Maybe it’ll wait ’til after dark so we can actually see the light show this time? 🙂

    • The HRRR seems to concur with nocturnal albino donkey’s rolling around around 10-11pm. Develops against eastern slopes of the coast range. Though if the HRRR is accurate it pretty well sticks to the coast range. One little finger comes out over the metro area.

    • runrain says:

      So you’re sayin’ the HRRR is giving us the finger??

  6. My alter ego says:

    Lots of altocumulus in the sky. 80 at 1:00 PM. More warm weather for next weekend. Yippee. Peace.

  7. runrain says:

    Cumulus really building up along the south-central Cascades. Looks like flow is southeasterly too.

  8. Joshua Downtown PDX says:

    The craziest statistic to me in this endless parade of warm weather over the last couple of years is that we have had record warm monthly temperatures in 9 out of the last 21 months. Hard to reconcile.

    • Yes, I think that’s the more important statistic. I recorded 7 days with 70+ temperatures this past April, and you might think that’s the most I’ve had here, but it isn’t: I had 8 days in April 2005, and 9 days in April 1989! What is different in 2016 is that daily temperatures overall (maximum and minimum) were higher, and of course, there was a new extreme monthly maximum temperature. We’re all seeing warmer temperatures over the year.

    • Mark Nelsen says:

      I totally agree, at the very least it’s a cyclical thing we haven’t seen since the 1930s. At worst, global warming is rearing its ugly head finally here in the Pacific Northwest. Gut feeling is that it’s some sort of combo and next year will be normal (instead of cold) for La Nina. Just an idea.

    • WEATHERDAN says:

      Well even with a normal Winter we might have a chance of some lowland snow. The last two Winters have been so incredibly warm. I really feel it is a combo of the the two factors and our warm stretch won’t be ending anytime soon. I think we have another very hot Summer on the way. Peace.

  9. Paul D says:

    Tuesday is down to 70 – yes!!

  10. Will May be like a June??? Hot summer or are we going to pay for the warm April with a cool Summer? Stay tuned…..

    We will be relentlessly on watch for t-storms….

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