Jump to content
  • Member Statistics

    17,588
    Total Members
    7,904
    Most Online
    LopezElliana
    Newest Member
    LopezElliana
    Joined

WxChallenge 2013-14


Recommended Posts

  • Replies 1.9k
  • Created
  • Last Reply

40/18/14/0

Was thinking warmer for the low with high clouds much of the night, especially after 6z, but bumped down when I saw the 0z ob. There should be a better window of sun tomorrow to go along with slightly higher mixing, a warmer start and slightly warmer 925mb temps.

Link to comment
Share on other sites

Today was the best forecast I ever had falling one knot short of perfect day to get me all the way back to 0.00 from 2.50 or so. I think I finally figured out "the system" for this city so...

 

39/14/12/0.

 

I am loving the fact 14 degrees is two degrees below the consensus.

Link to comment
Share on other sites

38/15/14/0.00

Relatively low confidence, so went close to the consensus. I could see both the low and/or high swing in either direction. Thinking that clouds and northerly wind limit the high for tomorrow, but we'll see. Dew-points on the climb tonight and temperatures are only slowly falling, so I think the low will either be near or somewhat higher than the consensus.

Link to comment
Share on other sites

39/14/13/0

I'm not liking my low right now. These clouds are going to make it tough to drop toward mid teens. Need an hour window to get the temp down a bit quicker. I like everything else I got. That North wind will keep high in 30's, but clearing probably early afternoon should provide a good window of mixing for a quick temp spike.

Link to comment
Share on other sites

Either I'm going to look like a butt or a genius with my 19F tonight... I thought it was good at the time :popcorn:

Temp bumped up to 22F this hour. I had 21 but got scared when it got down to 23 for the 0z ob. It's still early but unless it clears just before sunrise the warmer side of consensus may work for the low.

Link to comment
Share on other sites

Edit: The low is 15 and should stay there.

Now it's time to watch the high and see just how quickly they recover today. Winds should be picking up during the second half of the day as the pressure gradient increases.

Link to comment
Share on other sites

38 now. Max's 42 might be conservative :o

 

The strongest winds looked to be this evening. So hopefully that holds. I'm still less than 4 points from the top but I'm starting to run out of time to make that up. I won't be in my car or working like the last two days when the 0z deadline passes so hopefully that helps. Still not thrilled that the temps dropped so much with the cloud cover last night.

Link to comment
Share on other sites

38 now. Max's 42 might be conservative :o

The strongest winds looked to be this evening. So hopefully that holds. I'm still less than 4 points from the top but I'm starting to run out of time to make that up. I won't be in my car or working like the last two days when the 0z deadline passes so hopefully that helps. Still not thrilled that the temps dropped so much with the cloud cover last night.

I swear I did my calculation correct but I could see 43. 44 probably but I dont know
Link to comment
Share on other sites

I swear I did my calculation correct but I could see 43. 44 probably but I dont know

 

There are plenty of non-adiabatic processes that can account for the HYSPLIT method being wrong. Just because you calculated 42F adiabatically doesn't mean the sun won't have something else to say about it. ;)

Link to comment
Share on other sites

Whew, I am glad BWI got down to 15 somehow. Because of that and the fact high is on my side of consensus, my overall city score is unlikely to be worse than 0.00 where I am right now. I need winds to start picking up so I can officially enter into national consensus :)

Link to comment
Share on other sites

Hey Max when using hysplit why choose a backward trajectory?

Because backwards means that the air is coming from an upstream location and BWI is downstream of that location. Basically yesterdays weather at X is todays weather at Y and X is upstream of Y. But the air parcel changes obviously adiabatically as it ascends and descends along its entire course towards wherever it is headed. If you choose forward you basically are saying that the air originates from BWI aka BWI is the upstream location and HYSPLIT will show you going forward where the air goes from BWI downstream somewhere. 

Link to comment
Share on other sites

Archived

This topic is now archived and is closed to further replies.

  • Recently Browsing   0 members

    • No registered users viewing this page.

×
×
  • Create New...