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KF5JRV > WX 29.04.17 13:24l 59 Lines 2780 Bytes #999 (0) @ USA
BID : 14803_KF5JRV
Read: GUEST
Subj: NWS USA WX Forecast 4/29
Path: IW8PGT<CX2SA<N9PMO<NS2B<KF5JRV
Sent: 170429/1215Z 14803@KF5JRV.#NWAR.AR.USA.NA BPQK6.0.13
Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
314 AM EDT Sat Apr 29 2017
Valid 12Z Sat Apr 29 2017 - 12Z Mon May 01 2017
...Severe thunderstorms and flash flooding possible from portions of the
southern plains to the mid-Mississippi and Ohio valleys...
...Heavy snow possible for portions of the southern/central Rockies and
the adjacent High Plains...
...Above average temperatures expected for much of the eastern U.S...
An active weather pattern is expected to persist across the central and
eastern U.S. through the weekend and into early next week. A frontal
boundary is forecast to linger from the southern plains to the
mid-Mississippi and Ohio valleys as multiple waves of low pressure
traverse the boundary. A deepening upper-level low moving from the Rockies
into the southern plains will keep deep southerly flow in place across the
central U.S., transporting abundant moisture northward for precipitation.
At the surface, a low pressure system is forecast to strengthen across the
southern plains today, moving northeastward to the mid-Mississippi valley
by Sunday.
Showers and thunderstorms are expected across a vast area spanning from
the southern/central Plains through the Mississippi valley and into
portions of Tennessee and Ohio valleys today and Sunday. Heavy rain may
result in flash flooding for some areas, and severe thunderstorms are also
possible. Please refer to products issued by the Storm Prediction Center
for further details on the severe weather threat. Farther east, scattered
showers and thunderstorms will be possible for portions of the
Mid-Atlantic region Saturday afternoon into Sunday as a cold front
approaches. By Monday morning the frontal system across the southern
plains will begin to move into the eastern U.S., with showers and
thunderstorms accompanying it. On the western side of the low pressure
system, heavy snow is possible for some areas in the central and southern
Rockies as well as the adjacent High Plains. By Sunday night into early
Monday, as the surface low moves into the Upper Midwest, a mix of rain and
snow will be possible on the northwestern side of the system across
portions of the northern plains and Upper Midwest.
Elsewhere, a weakening frontal system will bring rain and high elevation
snow showers to the Pacific Northwest starting later Saturday. The system
is forecast to spread scattered rain and snow showers into the northern
and portions of the central Rockies on Sunday. Much of the East will see
above average temperatures through the weekend. High temperatures will
average 10 to 20 degrees above average for some locations.
Ryan
Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php
73, Scott KF5JRV
KF5JRV @ KF5JRV.#NWAR.AR.USA.NA
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