Another Busy Evening

Morning sunshine really helped to destabilize things this afternoon as the conveyor belt of moisture from the south continued.  So showers and thunderstorms popped up.  Most intense was a complex of showers that developed east of Silverton, move up through Estacada, Sandy, and NE towards Cascade Locks & Hood River.  A 2nd "blob" of showers consolidated nicely this evening and really soaked the Columbia River corridor from Portland to Longview.

We should avoid heavy downpours and thunder tomorrow since this most recent upper-level low will be moving off to the east.  But it’s Spring and another one is nipping at it’s heels.  Models say the cold front should actually hold together and arrive with solid rain Sunday morning.  Either way a wet weekend.  Not good for yard work or rain-free outdoor activities.

By the way, I showed a graphic of Hawaii rainfall this evening and perpetuated one Hawaiian Urban "Rainfall" Legend.  Mt. Waialeale is not actually the wettest place on earth.  It’s in India, but they are quite close…about 460" per year.  Go to this great article from the Honolulu Star-Bulletin for the details…interesting article. http://starbulletin.com/2002/05/27/news/story3.html

And if you’re interested in more about Hawaii’s incredible 6 weeks of rain, check this out: http://www.prh.noaa.gov/data/HFO/PNSHFO.0603302058

Stay dry this weekend!  Mark

70 Responses to Another Busy Evening

  1. Derek Hodges says:

    well its almost 55, hopefully that will help with the storms because today was only supposed to get to like 57 or something.

  2. Derek Hodges says:

    I don’t remember that one, I was 1 lol. Yeah today looks interesting, probably just spotty stuff unless the sun comes out. It looks like it may eventually but its been trying awfully hard not to the last couple days so lets hope it does and we get some good storms.

  3. Droppin says:

    Hmmm rather strange upper air pattern. Looks like we “could” have some good t-storms today due to it, also I got this info off of NWS.
    CURRENT THUNDERSTORMS IN FORECAST FOR THIS
    AFTERNOON SUPPORTED BY MODEL SOUNDINGS THAT SHOW LIFTED INDICIES
    AROUND 0 TO -2.
    ^^ Not bad 🙂 Let’s hope for some good ones:)
    -Rob

  4. Droppin says:

    1 more post about previous severe weather. I got this info off of NWS site.
    Severe Thunderstorm of July 9, 1995 in north central Oregon
    A supercell thunderstorm that developed near Redmond traveled nearly 200 miles before dissipating. It produced baseball sized hail in cities from Condon to Hermiston. Nearly every vehicle in Hermiston was damaged by hail. The local watermelon crop, on the verge of harvest, was a complete loss. The storm spawned flash floods, damaging winds, and even a brief tornado. The National Weather Service’s new Doppler radar tracked the storm and allowed forecasters to provide ample warning. There were no fatalities, but damages to crops, structures, and property were in the tens of millions of dollars.
    I also remember seeing this storm on radar. Very large impressive circular shaped storm. On the radar loop you could see it wobbling around itself AMAZING.
    -Rob

  5. Droppin says:

    Morning guys. Since you’re all discussing storms from the past I thought I’d add some of my own info. Back in the summer of 1990 Wednesday about 7:45pm a supercell hit the east side of portland. I was working that day and temperatures were in the mid 90sF. Before the storm hit my house with constant lightning and golf ball sized hail there was a continuous roaring sound from the storm. The sky was a weird purplish-brown as it approached from the southeast. I remember the severe weather statement at the time was calling for golf ball sized hail, up to 70mph winds and 3-5″ of rain. Luckily the golf ball sized hail only fell briefly and not heavily but did break car windows. The lightning was amazingly frequent.
    -Rob

  6. Derek Hodges says:

    One more question, in case you know, what situation caused such a storm to occur here.

  7. Derek Hodges says:

    I kind of wonder though with the way everything is just staying out of whack, how long it is before something crazy like that happens again.

  8. Justin says:

    The 1972 event was close to a derecho. In fact the line at the point it crossed through here was a little small and localized, more indicitive of a sudden downburst, but it took the shape of a derecho and produced a supercell. Quite rare for here though, you’re right.

  9. Derek Hodges says:

    Interesting. I wonder if any of those have ever developed here, not likely.

  10. Derek Hodges says:

    Interesting. I wonder if any of those have ever developed here, not likely.

  11. Justin says:

    Its really just an organized line of straight line winds, going over 50kts I believe. To put it non scientifically, almost a mini front like line of wind that develops on its own. Think of it as a constant microburst or something. They can quickly explode and can produce gustnadoes as high as 150mph.

  12. Derek Hodges says:

    What exactly is a derecho again? But yeah, I hope nobody else got hurt or killed.

  13. Justin says:

    *prayers*
    Hope they find everyone and there aren’t anymore hurt people out there. Have a safe night Sean.

  14. Justin says:

    Quite a wild day. There have been some tragic reports from Tennessee tonight, 8 dead in Newbern from what I suspect was a giant tornado. Prays go out to the folks affected by the storms.
    There was a tornado reported 7 miles SW of Indianapolis, and some more funnel clouds in the area. They think the line it came off from may have been a derecho, a rare straight line wind phenomena.

  15. Derek Hodges says:

    Sounded pretty wild. Yeah thats not really a Portland kind of storm except for once or twice, it sounds similar to the 72′ storm me and Justin were discussing earlier. Tomorrow seems like there will be a few storms around, nothing to major though. Although I will say if we could ever break out of this cloudiness some good storms could kick off. Looking at the satelite again, http://www.weather.com/weather/map/USOR0148?name=westcoastussatellite_large_animated&day=1
    it seems like the front is trying to split and the flow is generally from the south so if it would clear out possibly a good line could come on through. Often times it seems like at the end of the day all the storms just flatten out into one big mass and it rains for hours. When that happened a few days ago, or yesterday, idk, it put down quite a bit at my house. I can’t believe GFS is still calling for snow. It doesn’t really give us the necessary lift index but like it has been said, it doesn’t entirely understand things so I guess lets see if the sun breaks out or not tomorrow as to whether we get a few t-storms or not.

  16. Sean says:

    About 20 minutes after my last post a tornado warning was issued for my county.. I’ve got to say this is the first time that the sirens wen’t off in my area and then the realization hit that a tornado could be bearing down on us.
    I was outside until about a minute before the storm hit, I have a TV located just inside my back porch so I could see the radar (all TV stations were covering this). I was able to hear the straight line winds about 2-3 minutes before the winds hit and the cell passed over my house. It was like a dull-roar that just got louder and louder, then winds went from about 5-10mph and no rain to 50-70 and torrential downpour and constant lightning. That went on for about 5-10 minutes and then wind slowed , but still had some heavy rain.
    As far as I can tell from reports, there was a funnel cloud spotted just 4 miles SW of town. But no damage that I can see in my local area (of course it’s almost midnight). All meteorologists is saying though that there was probably widespread damage from straight line winds (which a gust of 82mph was recording in downtown Indianapolis).
    Was quite impressive.. I never saw anything like this in Oregon thats for sure.. Time to get some sleep now..

  17. Justin says:

    Yes, it started out in Tigard I believe as a downburst, and the cell funneled northward and became a rainwrapped F1 on Marine Drive before coming into Vancouver. There was also an F3 near Spokane that day, one of our very few true Northwest tornado outbreaks. Rarely do we have enough lift and moisture support at the same time for true severe weather.
    Tomorrow could be a little like yesterday with the pre frontal showers that came through, wouldn’t be surprised to see another solid block of one develop.

  18. Derek Hodges says:

    I’m pretty sure the funnel cloud or rotation was near my house. In my part of the city there were gusts to about 70mph and hail I believe.

  19. Derek Hodges says:

    I’m pretty sure the funnel cloud or rotation was near my house. In my part of the city there were gusts to about 70mph and hail I believe.

  20. Derek Hodges says:

    I don’t know when we will see another storm like that, probably someday, but that certainly is a once or twice in a lifetime kind of storm.

  21. Derek Hodges says:

    Looks like he is getting quite a storm. Do you think we will see any action tomorrow? That front is struggling to get inland.

  22. Justin says:

    Sean, a tornado warning appears to be right in your area almost, get to shelter if its coming towards your vicinity.

  23. Justin says:

    Yikes. This one cell I’ve been tracking through Western TN for almost 75 miles, and its been producing a tornado for the entirety. Probaably an F3+ tornado.
    The storm of 1972 was incredible. Waremart, which is where 5 of the 6 fatalities occured is now Value Village in Vancouver. I’ve stood at the intersection right where the tornado crossed, it probably moved within a mile of my house’s site.
    I wonder what the chances are that we ever get another F3 here, we had a small tornado in 1997 here in Vancouver as well.
    Stay safe again Sean, and get to shelter if the siren sounds. Western Kentucky is a solid blob of red tornado warning dots right now, the worst is probably to your south but tornadoes are plenty possible in Indiana.

  24. Sean says:

    Starting to get some occasional lightning to the north and west of my location.. Currently a tornado warning two counties to my west.. I’m located 20 miles east of indianapolis..
    Going offline for now until storms pass.. Should be able to get some good lightning pics..

  25. Derek Hodges says:

    Tornadoes are forming in that main line as well as a new line is probably over you as we speak, just not as strong as the other one.

  26. Derek Hodges says:

    Your pretty lucky. I was looking back, that storm here on April 5 1972 was really amazing for this area. A storm though not quite as intense but similar to a lot of midwest storms. There were gusts to 80mph away from the tornado. lol Anyway hoping for some good storms tomorrow, maybe some hail again. Be careful though Sean, those storms are monsters.

  27. Sean says:

    The line is expected to be in my area by around 10pm (local time). A tornado watch was issued about an hour ago that covers most of western and central indiana.. Bad thing is that this line is going to roll through after dark..
    But should be another exciting light show though.. I’m keeping a real close eye on the line as it continues to move toward my area..
    On Friday we had an F2 tornado just 10 miles south.. Hopefully they will stay that far away at least again..

  28. Sean says:

    The line is expected to be in my area by around 10pm (local time). A tornado watch was issued about an hour ago that covers most of western and central indiana.. Bad thing is that this line is going to roll through after dark..
    But should be another exciting light show though.. I’m keeping a real close eye on the line as it continues to move toward my area..
    On Friday we had an F2 tornado just 10 miles south.. Hopefully they will stay that far away at least again..

  29. Justin says:

    Its dropped some violent tornadoes in Iowa, the Springfield, Illinois area, and in Arkansas there was a long lived supercell.
    Stay safe, looks like we’re in the midst of a moderate tornado outbreak. Also 4.5 inch hail, near record sized, was reported in Russel County, Missouri. That’s one line of storms coming for you Sean!

  30. Sean says:

    Derek – I’m located in Greenfield.. Which is located east of Indianapolis..
    Yeah, storms are going to our south and west.. Looks like there will be a squall line that comes through later this evening.. Temp is about 65 and dewpoints on the rise..

  31. Derek Hodges says:

    You said you lived in Indiana right? What city? It looks kind of stormy in spots there.

  32. Travis says:

    Temps are in mid 40’s. If the model I showed yesterday is right http://wxweb.meteostar.com/sample/sample.shtml?text=KPDX We will be in for storms. Keep up hopes!

  33. Derek Hodges says:

    Stay safe..It would be clearing out right now but a second area of cloudiness developed so it should be that way for a while. Who knows though, maybe some instability anyway, but not to much.

  34. Sean says:

    Not yet.. But I did see a wall cloud on Friday, but the sunset a few minutes later..
    But looking at the forecast this morning, should have one line a strong storms with the warm front.. Then between 6pm to 12am is when the severe storms will come rolling through..

  35. Derek Hodges says:

    well..maybe anyway..

  36. Derek Hodges says:

    Seen any funnel clouds yet Sean? As for here I am thinking that tomorrow there should be a bit more activity than today. Its off the ocean though so its just the cold showers with possibly brief hail. It looks like the front will pass by about 8AM and it should begin to clear out, thats assuming that clouds don’t stay socked in the valley all day for some reason or another, which should give some sun and added instability. I guess I will tell you if that may still be the case tomorrow morning but you can just as easily know by looking out the window lol. I’m not saying it WILL happen but I’m seeing it as possible.

  37. Sean says:

    Justin – Yes tomorrow is going to be a very interesting day in the Upper MS and OH River Valley area.. Seems like tomorrow that all signs are pointing to big severe weather outbreak..
    I got my camera ready..

  38. Sean says:

    Justin – Yes tomorrow is going to be a very interesting day in the Upper MS and OH River Valley area.. Seems like tomorrow that all signs are pointing to big severe weather outbreak..
    I got my camera ready..

  39. Derek Hodges says:

    Anyway looks like it could be pretty active at times during the week.

  40. Justin says:

    This next week has dangerous looking implications for some strong severe weather outbreaks in the midwest and upper Mississippi Valley. Its my ‘break’, too bad I can’t go out there for a chase or two.

  41. Derek Hodges says:

    Of course we know that it won’t be that cold but that supports the cold air aloft and thus instability. Its getting a little bit active out there now, one storm putting down a little hail.

  42. Ryan says:

    Looking at the model that Travis posted I did find it interesting that the 12z run is still trying to keep us in the 30’s for highs.

  43. Derek Hodges says:

    Travis thats not really just rain, but rather showers and thunderstorms. Monday looks like a good bet for storms and maybe another trough a few days later. I had a brief hail shower this morning lol

  44. Travis says:

    This link shows lots of rain. http://wxweb.meteostar.com/sample/sample.shtml?text=KPDX
    You can see it going from a little today to mid tuesday. Then it starts up again a few days later. This isn’t a joke, check it yourself!

  45. Derek Hodges says:

    Can’t wait for the next one!

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