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KF5JRV > WX 10.01.17 14:21l 63 Lines 3217 Bytes #999 (0) @ USA
BID : 8590_KF5JRV
Read: GUEST
Subj: NWS USA WX Forecast 1/10
Path: IW8PGT<CX2SA<N9PMO<NS2B<KF5JRV
Sent: 170110/1315Z 8590@KF5JRV.#NWAR.AR.USA.NA BPQ6.0.13
Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
239 AM EST Tue Jan 10 2017
Valid 12Z Tue Jan 10 2017 - 12Z Thu Jan 12 2017
...Periods of heavy rain and snow expected to continue for much of the
West through midweek...
...Low pressure system expected to bring rain and snow from the Midwest to
the Northeast...
...Warming temperatures expected for much of the central and eastern U.S...
A series of Pacific storm systems will continue to impact the western U.S.
through midweek, bringing periods of rain and snow, some of which could be
heavy. Onshore flow will continue to spread moisture into the West today
ahead of another Pacific low pressure system, which will approach the
coast this afternoon. Widespread precipitation is expected, with heavy
rain and even a few thunderstorms possible for much of California. Snow
levels will rise as the system approaches, with snow changing to rain or a
mix of rain and snow across portions of the Sierras and the Great Basin.
Meanwhile snow, potentially heavy for some areas, will persist from the
interior Pacific Northwest to the northern and central Rockies. Rain and
snow will begin to become more scattered by late Wednesday as the system
moves inland and weakens. Another somewhat weaker low pressure system will
bring more rain and mountain snow to the West Coast states on Wednesday,
although precipitation will not be as widespread or as heavy as with
previous storm systems.
Snow will fall across areas from the Upper Midwest to the Great Lakes this
morning as a developing low pressure system crosses the region. The
surface low will begin to deepen quickly across the Upper Great Lakes
later today. As the low deepens, warmer air will be transported northward,
changing snow to rain across much of the Great Lakes by this afternoon and
evening. Farther south, showers and thunderstorms are expected today and
Wednesday from the Ohio valley to the Tennessee and lower Mississippi
valleys. Precipitation is also expected to spread into the Northeast
today, beginning as snow for many areas and then gradually changing to
freezing rain or rain tonight into Wednesday morning. A second cold front
will quickly move into the Midwest later Wednesday, bringing another round
of rain to much of the Ohio valley and southern Great Lakes, with snow and
areas of freezing rain for the Upper Midwest.
Temperatures will warm substantially through midweek across much of the
central and eastern U.S. High temperatures today are forecast to be 15 to
25 degrees above average from the southern plains and lower Mississippi
valley to the Great Lakes. Temperatures will remain slightly below average
along much of the East Coast today, but these areas will warm up quickly
by Wednesday, with high temperatures expected to be 5 to 10 degrees above
average. Even warmer temperatures are expected for much of the eastern
U.S. by Thursday. Meanwhile, another round of arctic air will spread into
the northern Rockies and northern plains today and Wednesday, with high
temperatures expected to be 15 to 25 degrees below average.
Ryan
Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php
73 Scott KF5JRV
KF5JRV.#NWAR.AR.USA.NA
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