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Area forecast discussion 
National Weather Service New Orleans la
349 PM CST Tuesday Jan 27 2015

Short term...
dry air has been able to warm above guidance levels once again
today. Cold surge associated with large blizzard system off the
the East Coast will be advancin southward tonight and maintain the
dry but somewhat cooler daytime temperatures Wednesday. That air
mass moves east and moderates rather quickly on Thursday for a
warming trend that should resemble today's temperature trends.

Long term...
a fast moving system moves across the middle-plains states Thursday
with an Arctic air mass building from Canada and wedging into the
area while the bulk of cold air shunts east. Meanwhile...cut-off
low dynamics develops over Baja California California that eventually induces
a surface low over the west Gulf Saturday night and early Sunday.
This feature will move along the frontal boundary into the
forecast area to bring a good cover of cold rain and elevated
convection Sunday. Rain chances will be held at 70 percent but
should flush out in late evening as low deepens while lifting
north in the appalchians.


VFR conditions are expected to prevail through the forecast period
with little or no cloud cover expected. May be a brief period of
MVFR visibilities due to fog around sunrise at the more prone
locations like kmcb and khum. 35


a bit of wind enhancement with some modest advection and drainage
in the near shore waters overnight as high pressure surge builds
into the Gulf. Winds veer to easterly Wednesday and onshore
Thursday ahead of a better surge Thursday night. No headlines
expected though brief period of near 15 knots with some gustiness may
be possible at daybreak over the sounds and near shore waters.
Heading into the weekend...some gradient response as weak area of
low pressure develops in the west Gulf and begins to ride north-northeast
along Pacific maritime front Sunday. 24/rr


Decision support...
Activities...slurry support

Decision support services (dss) code legend
green = no weather impacts that require action
blue = long fused watch/warning/advisory in effect or high
visibility event
yellow = heightened impacts with short fused
watch/warning/advisory issuances; radar support
Orange = high impacts - slight to moderate risk severe; nearby
tropical events; hazmat or other large episodes
red = full engagement for moderate to high risk severe
and/or direct tropical threats; events of National


Preliminary point temps/pops...
mcb 39 69 44 73 / 0 0 0 10
btr 42 67 47 73 / 0 0 0 10
asd 42 62 44 70 / 0 0 0 10
msy 46 62 49 71 / 0 0 0 10
gpt 43 59 46 68 / 0 0 0 10
pql 40 61 43 69 / 0 0 0 10


Lix watches/warnings/advisories...



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