First Thunder Day

As I mentioned on the 10 & 11pm broadcasts tonight, March 28th will definitely go down as the first widespread "thunderstorm" day in the spring here in the Northwest.  We recorded over 200 strikes across Oregon.  They were spread all across the state from the Coast to the Idaho border.  Scattered storms developed and moved north, away from a California system supplying the moisture.

Tomorrow the flow overhead turns onshore, which should give us lighter afternoon showers.  Onshore flow also means a bit more cloud cover and cooler temperatures.

Long range maps show this active pattern will continue with deep troughs dropping in towards California, which gives us southerly flow and moisture, then cooler air as they move on through.  Those of you looking for 70 degree weather will have to wait into the first week of April at least….Mark

26 Responses to First Thunder Day

  1. Derek Hodges says:

    Also Mark added in t-storms for friday, I was hoping for that. And the end of next week.

  2. Derek Hodges says:

    Check out your radar that you gave Josh, there was a tornado vortex signature in there to your north. wow.

  3. Derek Hodges says:

    Check out your radar that you gave Josh, there was a tornado vortex signature in there to your north. wow.

  4. Derek Hodges says:

    Possibly, but often times in this pattern my side of the city, east side, gets soaked all day while the west side gets nothing. If that has been the case then this is because of the upslope of the cascades. If the west side has been wet too then this probably would be a convergence zone kind of thing. Do you know if Hillsboro/Forest Grove areas have been wet all day?

  5. Josh"The Snowman" says:

    BTW, looks like one around Centralia too. I just find it interesting.

  6. Josh"The Snowman" says:

    You know I’m always talking about the convergence zone up here in Everett. But is that possibly what you guys are experiencing there? I’d be very interested to here what Mark would have to say about this. Could you guys be getting rain there in Portland from the winds coming south up the willamette valley and colliding with winds coming in from the mouth of the columbia? Looks like that is what is happening.

  7. kirk says:

    What a miserable day rainy and no warmer than 45.5 all day. YUCK!! I do not think the rain let up all day here. I want SUN and 75 deg. 8 months til November. lol

  8. Derek Hodges says:

    raining heavlily here, I still am watching that low.

  9. Josh"The Snowman" says:

    Heck of a convergence zone firing up here right now guys. Darn thing is just north of me too, couple of mid-upper 40’s dbz in there.

  10. Derek Hodges says:

    Lets wait and see I guess. I’m sure if anything COULD happen Mark will let us know.

  11. Justin says:

    That’s probably just some high cloudtops that show up on the satellite, not ‘tropical moisture’, and it doesn’t have a chance of making it here.

  12. Derek Hodges says:

    Radar works again, yay

  13. Derek Hodges says:

    also, todays high was a sorry 48.7 here, that rain really held it down.

  14. Derek Hodges says:

    Or also southwest, which is probably where it will go. I mentioned the flow switches more westerly so that should at least cause the low to move more in that direction.

  15. Derek Hodges says:

    Why? I know it appears to be diving a bit south but below that the flow switches more westerly. Are we talking about the same thing? And anyway it doesn’t have to get to us it just has to get a bit to our west so it can restart the southerly flow.

  16. Derek Hodges says:

    Why? I know it appears to be diving a bit south but below that the flow switches more westerly. Are we talking about the same thing? And anyway it doesn’t have to get to us it just has to get a bit to our west so it can restart the southerly flow.

  17. Justin says:

    I don’t think that has any chance of getting to us Derek…

  18. Derek Hodges says:

    Its not warm at all either. In my research today I was looking at the satellite, http://www.weather.com/weather/map/USOR0148?name=westcoastussatellite_large_animated&day=1
    What I am noticing is see the low toward our west. That appears to be moving in a somewhat similar track as to where the other one was. Tropical moisture from the rains in Hawaii appear to be feeding into it. Hopefully this one will work out and even if not its something to think about.

  19. Camas Mom says:

    Hi guys! Yup, not much to say except it’s raining. I washed the car today, even so, because I can’t take the dirt. It will be nice when it quits raining! 🙂

  20. Derek Hodges says:

    Its been raining all morning, must be a strong onshore flow. Even if we get storms anytime soon, we need to wait until late spring or summer for the best ones.

  21. Justin says:

    The pattern still is not really conducive for widespread thunderstorms, I’d wait for a few more months. I’m hoping to go to the midwest sometime in the next few springs and catch myself some real storms.
    Mark, have you ever been storm chasing or seen a serious severe thunderstorm/tornado?

  22. Travis says:

    I’m looking for storms. I was excited all day and then nothing. I am hoping for that warm weather and April is close so I am glad. But there better be at least one good storm or it will be dissipointing for me and many others.

  23. Jeff says:

    I am in the valley.. In the country, Northwest of Woodburn. Yesterday around 2:30pm A warm breeze came by for about 30 seconds, kinda strong. I was amazed. I look up in the sky and a nice funnel cloud was over me. It turned into a regular cloud with in half a minute. But I am on a 100 acre farm.. and It is my dream to see a tornado touch down in Oregon.. Neighbors of mine says one touches down in the remote area that I am in around every 10 years..

  24. Derek Hodges says:

    Hopefully within a few days we have another one. I want to see at least one good storm.

  25. Derek Hodges says:

    Hopefully within a few days we have another one. I want to see at least one good storm.

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