KF5JRV > WX 21.03.17 13:24l 53 Lines 2313 Bytes #999 (0) @ USA
BID : 12727_KF5JRV
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Subj: NWS USA WX Forecast 3/21
Path: IW8PGT<CX2SA<N9PMO<NS2B<KF5JRV
Sent: 170321/1215Z 12727@KF5JRV.#NWAR.AR.USA.NA BPQK6.0.13
Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
359 AM EDT Tue Mar 21 2017
Valid 12Z Tue Mar 21 2017 - 12Z Thu Mar 23 2017
...Heavy snow possible over the Sierras and northern Cascades...
...Heavy rain over parts of Northern California...
...Snow over parts of the Northern/Central Plains...
Widespread rain with mountain snow is forecast for a majority of the West
over the few days as multiple disturbances move through the region.
Portions of northern and central California may have periods of higher
rainfall amounts/intensities that could lead to rapid runoff and/or flash
flooding today and on Wednesday. The area of potential concern will shift
southward to southern California Wednesday afternoon into Thursday as a
cold front passes through California and into the southern Great Basin.
Higher snowfall totals are expected for the Sierras and the northern
Cascades in this active wet period. As the upper low tracks over the Great
Basin/Desert Southwest a surface low will develop and form a surface front
from northern Utah to Mexico-- which will generate snow across the Great
Basin... Wasatchs and the Wind River range by midweek.
Meanwhile... upper-level energy over the Northern Intermountain
Region/Northern Rockies will move eastward and dissipate over the Ohio
Valley during the evening hours tonight. Snow and rain will spread over
parts of Northern Intermountain Region/Northern Rockies into parts of the
Northern/Central High Plains is forecast to dissipate by this evening as
well. A second area of upper-level energy will move out of the Northern
Rockies into the Central Plains Tuesday into Wednesday morning. The
energy will produce rain and some snow over parts of the Central
Rockies/Central High Plains that will move into parts of the
Central/Northern Plains by Wednesday.
Low pressure over the Ohio Valley will move offshore today and the
associated front will advance southward to the interior Gulf Coast States
and eastward off the Southern Mid-Atlantic Coast by Wednesday morning.
Showers and thunderstorms along the frontal boundary is expected to end
over the Mid-Atlantic by Wednesday afternoon.
Campbell/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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