Helge Tuschy
EF0
Hi everyone,
I'm wondering about this question:
This sounding shows the prefrontal situation immediately in front of an eastward racing cold front over Greece ( Athen, at 15Z ). Well, the cold front was driven by a very strong jet system ( 700hPa up to 25m/s and 500hPa up to 40m/s ---> deep layer shear (DLS) up to 35m/s / 70kt ).
Steep low level lapse rates present and I think impulse can be mixed down fine.
My question will be if someone of you knows a calculation, where you can guess the expected surface wind along the cold front ( squalline ) and how much influence this inversion will have for weaken this downward impulse somewhat...?Models forecast 925hPa wind speeds of about 25 kt ( ~ 13kt ) behind the cold front, not sampling the mesoscale convective wind field very well.
Maybe someone of you knows an abstract or a letter, which describes the problem.
Best regards,
Helge
I'm wondering about this question:
![Question.jpg](/proxy.php?image=http%3A%2F%2Fimg.photobucket.com%2Falbums%2Fv125%2Fhelge%2FQuestion.jpg&hash=a086b701997e2dd67a7a47e72cf3cefb)
This sounding shows the prefrontal situation immediately in front of an eastward racing cold front over Greece ( Athen, at 15Z ). Well, the cold front was driven by a very strong jet system ( 700hPa up to 25m/s and 500hPa up to 40m/s ---> deep layer shear (DLS) up to 35m/s / 70kt ).
Steep low level lapse rates present and I think impulse can be mixed down fine.
My question will be if someone of you knows a calculation, where you can guess the expected surface wind along the cold front ( squalline ) and how much influence this inversion will have for weaken this downward impulse somewhat...?Models forecast 925hPa wind speeds of about 25 kt ( ~ 13kt ) behind the cold front, not sampling the mesoscale convective wind field very well.
Maybe someone of you knows an abstract or a letter, which describes the problem.
Best regards,
Helge