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Re: [OM] OT: Weather

Subject: Re: [OM] OT: Weather
From: Chris Trask <christrask@xxxxxxxxxxxxx>
Date: Mon, 21 Apr 2014 15:19:47 -0700 (GMT-07:00)

-----Original Message-----
>From: Ken Norton <ken@xxxxxxxxxxx>
>Sent: Apr 21, 2014 2:49 PM
>To: Olympus Camera Discussion <olympus@xxxxxxxxxxxxxxxxx>
>Subject: Re: [OM] OT: Weather
>
>> Sometimes.  If the amount of rainfall runoff exceeds storage capacity then 
>> you have to release it.  With snowpack you get a slower inflow and less need 
>> for release.
>
>But you get sublimation with snow...
>
>
>> If I look at this in detail, the Great Lakes storm is a second lower 
>> latitude centre of the Hudson Bay cyclone, the other centre sitting over the 
>> southern tip of Greenland.  This will be fed along the western side by a jet 
>> of arctic air from Baffin Island southward on Sunday, which will accelerate 
>> things.
>
>OK, I see it now. Had to change to a different map and your 500mb
>recommendation was good because it eliminated the surface clutter. :)
>

     I use the NCEP/NWS/NOWW GFS plots as the colours in the Unisys plots are a 
bit distracting:

http://mag.ncep.noaa.gov/GemPakTier/MagGemPakImages/gfs/00/gfs_namer_168_500_vort_ht.gif

     You'll notice here that the nor'easter is now depicted as a full-blown 
cutoff low.

     <<SNIP>>

>
>Looking at the 1000mb plot, it looks there is a thin cold air mass
>sliding in under this upper level low:
>http://weather.unisys.com/gfs/gfs.php?inv=0&plot=1000®ion=us&t=7e
>

     Yikes!  That a prime scenario (cold dry air quickly underlaying warm moist 
air) for tornado activity.


Chris

When the going gets weird, the weird turn pro 
     - Hunter S. Thompson
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