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KF5JRV > WX 05.01.17 13:31l 73 Lines 3593 Bytes #999 (0) @ USA
BID : 8265_KF5JRV
Read: GUEST
Subj: NWS USA WX Forecast 1/5
Path: IW8PGT<CX2SA<N9PMO<NS2B<KF5JRV
Sent: 170105/1216Z 8265@KF5JRV.#NWAR.AR.USA.NA BPQK6.0.13
Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
402 AM EST Thu Jan 05 2017
Valid 12Z Thu Jan 05 2017 - 12Z Sat Jan 07 2017
...Heavy snow possible over the Southern Rockies...
...Heavy snow possible downwind from the Great Lakes...
...Snow possible for parts of the Southeast...
...Heavy rain possible for parts of Florida...
Upper-level energy over Northern California/Pacific Northwest will move
southeastward to the Southern Plains by Friday evening. Onshore flow will
stream a plume of moisture into Central/Southern California that will
slowly wane over California on Thursday before strengthening overnight
Friday. The system will produce rain and snow from parts of California to
the Central/Southern Rockies that will end over California by Friday
morning. The rain and snow will move southeastward into the Southwest and
Southern/Central Rockies on Friday morning. In addition, as upper-level
energy streaks out over the Southern High Plains on Thursday night into
Friday, snow will develop over parts of the Southern High Plains overnight
Thursday into Friday. The rain and snow will end over the Southwest and
the Southern/Central Rockies overnight Friday.
As upper-level energy moves onto the Southern Plains on Friday, low
pressure will develop along the Western/Central Gulf Coast overnight
Thursday that will move to the Eastern Gulf Coast by Friday evening.
Before the low develops, cold high pressure over the Northern Rockies will
move to the Southern Plains with the cold high pressure extending eastward
to the Tennessee Valley/Southern Mid-Atlantic by Friday. The developing
low will pull moisture from the Gulf of Mexico northward overrunning the
associated front. Rain will develop over parts of the Western Gulf
Coast/Lower Mississippi Valley on Thursday evening that will expand
eastward to the Central/Eastern Gulf Coast by Friday morning and the rain
will intensify over the Central/Eastern Gulf Coast by Friday evening.
Additionally, as upper-level energy streaks eastward over the Lower
Mississippi Valley into the Tennessee Valley/Southern Appalachians, snow
will develop over the interior Lower Mississippi Valley by Friday morning
expanding into parts of the Tennessee Valley/Southern Appalachians by
Friday evening.
Meanwhile, upper-level energy over the Great Lakes to the Middle
Mississippi Valley, on Thursday morning, will aid in producing snow over
parts of the Middle Mississippi Valley into the Ohio Valley that will move
into the Lower Great Lakes/Central Appalachians by Thursday evening.
Overnight Thursday the snow will end over the Middle Mississippi Valley
and the Ohio Valley. In the meantime overnight Thursday, low pressure
will develop along the Southeast Coast and move northeastward to Cape
Hatteras by Friday morning before moving out over the Western Atlantic by
Friday evening. Snow will develop overnight Thursday over the Northern
Mid-Atlantic into New England with rain over parts of Southeastern
Virginia and North Carolina that will move off the coast by Friday
afternoon.
Furthermore, cold air moving over the Great Lakes with favorable
upper-level flow will produce lake effect snow downwind from the Great
Lakes through Friday evening. In addition, weak onshore flow returns to
parts of the Pacific Northwest overnight Thursday. The onshore flow will
aid in producing rain and higher elevation snow over parts of the Olympic
Peninsula on Friday.
Ziegenfelder
Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php
73 Scott KF5JRV
KF5JRV.#NWAR.AR.USA.NA
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