KF5JRV > WX 18.03.17 12:43l 45 Lines 2011 Bytes #999 (0) @ USA
BID : 12525_KF5JRV
Read: GUEST
Subj: NWS USA WX Forecast 3/18
Path: IW8PGT<CX2SA<N9PMO<NS2B<KF5JRV
Sent: 170318/1137Z 12525@KF5JRV.#NWAR.AR.USA.NA BPQ6.0.13
Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
346 AM EDT Sat Mar 18 2017
Valid 12Z Sat Mar 18 2017 - 12Z Mon Mar 20 2017
...Record warmth expected over much of the western U.S. as heavy snow
moves across the northern Cascades...
...Cold and wintry precipitation expected to spread from the Great Lakes
into the Northeast during the weekend...
Much of the central and eastern U.S. will be cooler than seasonal average
over the next few days as an upper-level trough is forecast digs
southeastward across the Great Lakes and the mid-Atlantic. A couple of
associated surface cold fronts will track eastward allowing Arctic air to
overspread the region and generating a swath of a wintry mix of
precipitation from the Upper Great Lakes to the Mid-Atlantic/Northeast.
Once the system has pushed offshore late tonight the central low pressure
is forecast to deepen on Sunday a couple of hundred miles from Cape Cod --
keeping gusty winds and snow... possibly heavy at times along the coast
from Maine to southern Virginia. Prior to the frontal passage rain will be
the primary precipitation type from mid-Atlantic southwestward through the
mid and lower Mississippi Valley. Some scattered thunderstorms will be
possible.
A strong cold front combined with moist onshore flow will keep lower
elevation rain and mountain snow possibly across portions of the Pacific
Northwest... Great Basin and Intermountain West. A few thunderstorms will
be possible today across portions of Idaho and Montana. Heavy snow may be
possible for the northern Cascades. The northern portion of the front will
progress across the Northern Plains and Upper Midwest while the southern
flank stalls in the Intermountain West. Prior to the cold front
temperatures across the Desert Southwest and Rockies may reach or exceed
daily records today-- and for the Central Plains on Sunday.
Campbell
Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php
73 Scott KF5JRV
KF5JRV.#NWAR.AR.USA.NA
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