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Holy bombogenesis (W Pac 1/15/2013)

OKpowdah

Entry posted by OKpowdah ·

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Surprised I haven't seen any discussion about this bomb on the board.

Check out the DT pressure map I attached below. You'll never see a better signature of a tropopause fold. And obviously all sorts of upper level support with massive divergence aloft.

From Ryan Maue:

I used the full-resolution (T574) surface pressure grids from NCEP GFS for the data points:

1000 mb ... (13/12z)

994 mb ... (13/18z)

989 mb ... (14/00z)

978 mb ... (14/06z)

960 mb ... (14/12z)

946 mb ... (14/18z)

940 mb ... (15/00z)

blogentry-128-0-57832300-1358356260_thum

blogentry-128-0-70733000-1358355851_thum

blogentry-128-0-27399400-1358356613_thum

blogentry-128-0-90641000-1358356647_thum

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baroclinic_instability

Impressive beast it was. I posted a IR image in the AK thread. Interestingly, in terms of pure cyclogenesis, it was a relatively "steady state" rapid deepening with an insufficient upper PV/jet configuration to really develop the extreme bent-back seclusion seen in full on cyclones. Sounds weird saying that for a storm that deepened to 936 hpa at such a far S latitude. The beast in the N Atl day 3-4 is going to make this event look relatively unimpressive, if that is even possible.

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