Wednesday, January 27, 2010

MOS Watching

I've picked three cities in the northern Plains to follow for lows Thursday morning, Thursday afternoon highs, and Friday morning lows. I want to get a handle on how MOS and raw guidance handle the arctic air mass. I'm willing to bet that MOS guidance will be too warm with the temperatures as it rarely performs well with these arctic air masses.

Omaha, NE
12Z NAM MOS -- 2/13/3
12Z GFS MOS -- 3/14/4
18Z NAM RAW -- 3/14/5
18Z GFS RAW -- 4/14/5

Des Moines, IA
12Z NAM MOS -- 3/11/0
12Z GFS MOS -- 2/10/-1
18Z NAM RAW -- -2/11/8
18Z GFS RAW -- 0/9/-5

Kansas City, MO
12Z NAM MOS -- 13/25/8
12Z GFS MOS -- 13/28/14
18Z NAM RAW -- 16/26/16
18Z GFS RAW -- 17/24/16

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