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1/21 - 1/22 Winter Storm Threat


Brick Tamland
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1 minute ago, DeltaPilot said:

As a pilot ive seen some pretty crazy stuff with regards to snowfall and coverage. From higher altitudes its hard to fathom how the line can be extremely abrupt. Like someone painted the earth with

a brush.

If someone had a picture... We would all be really thankful..... :rolleyes:

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20 minutes ago, purduewx80 said:

NWS Atlanta will do an 18Z sounding. Most of the 12Z models appear to have initialized too moist at 850mb, and it still appears to be a struggle to saturate looking at the higher scans from BMX and FFC radars. 

To elaborate...

288
FXUS62 KFFC 211620
AFDFFC

Area Forecast Discussion
National Weather Service Peachtree City GA
1120 AM EST Tue Jan 21 2025


.UPDATE...
Issued at 1107 AM EST Tue Jan 21 2025

This morning the main question has been where will the dry air win
out. We are doing an 18z sounding to get a better picture of
this line and will have more of an update as that comes in.
Currently there is a deep layer of dry air at 850mb but our
dendritic growth zone is almost saturated at this point. We have
been receiving reports of flurries despite this and are seeing a
potential moisture surge coming in from Alabama. This along with
the 12z models coming in gives us a little more confidence that
the 850mb layer will moisten up but we will know more with this
sounding. Have just slightly upped snowfall totals to account for
this trend but only by a couple tenths of an inch. Will keep an
eye on that though.

&&
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  • Brick Tamland changed the title to 1/21 - 1/22 Winter Storm Threat

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