Interesting Forecast

dmccormack

dmccormack

Touchdown! Greaser!
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Dan Mc
Forecast for: KCKB (CLARKSBURG, WV, US) Text: KCKB 060908Z 0609/0706 00000KT P6SM SKC WS020/36040KT Forecast period: 0900 to 1300 UTC 06 November 2009 Forecast type: FROM: standard forecast or significant change Winds: calm Visibility: 6 or more miles (10+ km) Clouds: clear skies Wind shear: at 2000 feet ( 610 m) AGL, from the N (360 degrees) at 46 MPH (40 knots; 20.8 m/s) Weather: no significant weather forecast for this period
 
Bumpy transition!
 
Yeah.. I was planning on flying the Chief from MGW to Malley Fld (SHinnston, WV) this morning, but we had ice fog in our area (roads were all black ice except the tracks fro earlier vehicles). There was fog in the valleys as well.

Of course I had to drive 15 miles to I-79 with an ignoramous 5' off my rear bumper upset I wasn't doing 80 on the back roads.

:mad2:
 
I did pattern work on a day like that. Down low it was nice. We did climb up just for grins, and that mixing layer wasn't that much fun.
 
We've had some hellacious winds aloft around the coast this week, haven't we! We've been facing 80+ kts at and even below 8,000-10,000. Flew an approach the other night...winds at the surface were reported 300@17, winds aloft inside the marker were 020@47.

Cruising at 16,000 night before last:
 

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Scott, is this another case of non-convective LLWS due to an inversion?

KPTK 061724Z 0618/0718 16010KT P6SM SCT200
FM070400 19012KT P6SM SCT250 WS015/24045KT
FM071400 22014G23KT P6SM SCT040

I always thought the cause of conditions like this was strong flow aloft that doesn't make it down to the surface because of surface friction and lack of mixing? I always assumed the boundary layer would be turbulent. I'd be interested to learn otherwise!
 
This morning our surface winds were 19016G23. The winds aloft, just another 2000 feet up, were 220@53. It was smooth sailing up there, but everything below that layer was really rough.
 
Matthew said:
This morning our surface winds were 19016G23. The winds aloft, just another 2000 feet up, were 220@53. It was smooth sailing up there, but everything below that layer was really rough.
Click to expand...

I didn't fly, but a friend did. He said local winds were varying 100 degrees at 3-5 knots and it was "bumpy" at pattern altitude.
 
Yes, now I have first-hand experience of flying in those conditions, too! I went up with my CFII to practice holds at the PSI VOR. It really was smooth as glass up there at 3000 MSL! The winds were totally crazy, we were trying to hold on the PSI 090, right turns, and were getting blown too far north during the outbound turn to do anything but steer straight back to the VOR. But the boundary layer had only a little light chop. My CFII said it was worse a couple of hours earlier when he was up with another student. I'm guessing there was still some warmer air down below then from daytime heating; by the time were getting ready to land, it was about 3.5 hours after sunset.

I'm not familiar with the skew T log p plot. It looks like the solid red curve is temperature and the solid blue is dewpoint, as a function of pressure, but where is the temperature scale? Or are some of the diagonal lines isotherms? (Actually, if there is a good accurate online explanation, a link would be worth 1000 words... teach someone to fish, etc.)

Thanks.
 
dmccormack said:
Of course I had to drive 15 miles to I-79 with an ignoramous 5' off my rear bumper upset I wasn't doing 80 on the back roads. :mad2:
Click to expand...

A young lady I was riding with once informed me that folks like this were dogs or horses in a past life that liked to sniff butt! Ever since then, I laugh when it happens, take my foot off the accelerator and slow until they finally pass. I've even pulled to the side once or twice when conditions allow. In rush hour, there always seems to be another behind the first. I try to just avoid that time when possible.

Best,

Dave
 
That sounds like a typical day around here.

Here's today:

KJLN 071453Z 20019G25KT 10SM CLR 18/10 A2996 RMK AO2 PK WND 21027/1427 SLP138 T01830100 53015

KJLN 071120Z 0712/0812 20017G25KT P6SM SKC WS018/22050KT
FM071430 20016G24KT P6SM SKC
FM080000 19012KT P6SM SKC WS018/22045KT


Tom's going with a student on a cross country shortly and we're both taking a bunch of college students flying this afternoon in the Citabria at the farm. Sometimes it's windy and sometimes there's shear. Oh, well.


Dave Siciliano said:
A young lady I was riding with once informed me that folks like this were dogs or horses in a past life that liked to sniff butt! Ever since then, I laugh when it happens, take my foot off the accelerator and slow until they finally pass.
Click to expand...
I remember that thread...it is one of the funniest one's we've had here. :D
 
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