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WxChallenge 2014-2015


Jurg

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Wow! 24 knots in the book...

KBTM 211730Z AUTO 26018G36KT 1 3/4SM +TSRA SCT026 BKN039 OVC060 06/03 A2981 RMK AO2 PK WND 25040/1720 WSHFT 1714 LTG DSNT N AND NW RAB22 TSB21 PRESRR P0007 T00560028

KBTM 211727Z AUTO 27024G40KT 3SM TSRA FEW026 BKN039 OVC060 06/03 A2979 RMK AO2 PK WND 25040/1720 LTG DSNT N AND NW RAB22 TSB21 PRESRR P0003 T00610028

Edit: Ninja'd

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You'll be first after today, won't you? Good call(s)

Except now I'm wishing I kept my higher precip instead of dropping down. Knew that vortmax meant business. I had .45 originally that probably will be too much but middle of the road like .35 is possible if this keeps up, but then again I can't really know with all the radar beam blockage going on.

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What a crazy day to forecast for this city. My winds and precip will keep me afloat today as long as the low gets down near 30 tonight. Should stick around top 60 if that happens. Great forecast by some in here, especially Max for his overall forecast. Great job sir on a tough day for forecasting  :clap:

Would have been better if I kept my prelim precipcast earlier in the day yesterday of 0.45", but talking to my old professor scared me b/c he said the moisture return was going to be too little too late and I was arguing that the dynamics were great and PWATs of 0.6" especially with that vortmax and PVA with a little help from upper level diffluence from an AC jet streak even though it was only a 80 knot jet streak nevertheless I should of went with my gut that this was going to be more of a stratiform precip shield over a convective one. 

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Would have been better if I kept my prelim precipcast earlier in the day yesterday of 0.45", but talking to my old professor scared me b/c he said the moisture return was going to be too little too late and I was arguing that the dynamics were great and PWATs of 0.6" especially with that vortmax and PVA with a little help from upper level diffluence from an AC jet streak even though it was only a 80 knot jet streak nevertheless I should of went with my gut that this was going to be more of a stratiform precip shield over a convective one. 

 

Eh, don't beat yourself up. You still had a great forecast. I had to do all my research and map viewing on my phone yesterday since I was out all day, so I didn't get the best look that I wanted. I did however make a mistake second guessing myself on the high. i had my prelim forecast at 56 degrees and got scared due to the blanket of cloud cover out west and I thought the speed of the system would have it arrive a bit sooner and keep the temperatures down for the late morning. I also never took into consideration the 6z morning of being one of the warmer times of the day and even that had a temp around 54, so I definitely goofed there. I honestly didn't know why I didn't go higher on the precip with such a strong looking vort max coming into the region with strong PVA and high PWAT values for the area. I got burned one year doing high precip and it ended up not getting anywhere near what I thought and I tanked, so maybe I was a bit gun shy. Either way, that was a good forecast by you and even others in here are doing very well. This has been a interesting city to forecast for. I have to admit though, I hate forecasting for the Rockies area haha

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The low tonight is tricky... there is a lot of residual moisture hanging around that might make it difficult to radiate as effectively as if it were dry. Dewpoint will need to fall a good 10 degrees tonight which will be difficult with all the residual moisture hanging around. Tomorrow's high is a little easier, we should quickly resume to WAA and mix out, so upper end of MOS guidance seems appropriate.

 

55/28/17/0.00

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Went 57/27/15/0

 

They've mixed higher than expected almost every sunny day and 700mb temps have generally ran warm most days...if they mix above 700mb tomorrow and the GFS 700mb temps verify closer to reality (around +1-2C as opposed to -1 to -2C on the NAM give or take) they should get into the mid to upper 50's. Went 57 so I was a degree warmer than the 12z GFS MOS. I split the GFS MOS and NAM MOS on the low as I wasn't convinced that dew points would get to 25 or colder like the NAM/USL show. They'll drag the dews down several degrees tonight once they clear (and hopefully that's before 6z for my day 5 low's sake) but I'm not sure if they can loose 10F off of their current dew point. And that's pretty much it.

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Went 57/27/15/0

 

They've mixed higher than expected almost every sunny day and 700mb temps have generally ran warm most days...if they mix above 700mb tomorrow and the GFS 700mb temps verify closer to reality (around +1-2C as opposed to -1 to -2C on the NAM give or take) they should get into the mid to upper 50's. Went 57 so I was a degree warmer than the 12z GFS MOS. I split the GFS MOS and NAM MOS on the low as I wasn't convinced that dew points would get to 25 or colder like the NAM/USL show. They'll drag the dews down several degrees tonight once they clear (and hopefully that's before 6z for my day 5 low's sake) but I'm not sure if they can loose 10F off of their current dew point. And that's pretty much it.

Except for Day 3. I'm hoping for somewhat of a repeat although I guess there were some high clouds that day that prevented it from getting higher. I guess I'll be hoping for those and maybe the added soil moisture (though that isn't likely to be much of a factor). The low really irked me...couldn't decide if maybe the dews wouldn't drop and the low would be in the high 20s. Ultimately went with the USL/ECMWF combo though. We'll see. 

 

54/25/13

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Except for Day 3. I'm hoping for somewhat of a repeat although I guess there were some high clouds that day that prevented it from getting higher. I guess I'll be hoping for those and maybe the added soil moisture (though that isn't likely to be much of a factor). The low really irked me...couldn't decide if maybe the dews wouldn't drop and the low would be in the high 20s. Ultimately went with the USL/ECMWF combo though. We'll see. 

 

54/25/13

I think I remember clouds moving in around 18z that day and causing temps to level off. We'll see if that happens tomorrow or not, the NAM showed a few clouds during the afternoon but nothing too long lasting. We'll see.

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I think I remember clouds moving in around 18z that day and causing temps to level off. We'll see if that happens tomorrow or not, the NAM showed a few clouds during the afternoon but nothing too long lasting. We'll see.

 

Yep, day 3 had clouds moving in. I'm a bit concerned about that tomorrow and almost went 55F for that reason, but stuck with my 56F.

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Yep, day 3 had clouds moving in. I'm a bit concerned about that tomorrow and almost went 55F for that reason, but stuck with my 56F.

There's some chance at high clouds moving in as early as 18z, but wanted to gamble on them coming in later. We'll see if I get burned for that or not.

 

Still 39/35, but winds are calm and skies are down to scattered this hour, so hopefully those start going down soon.

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