| |
KF5JRV > WX 09.01.17 13:31l 60 Lines 3073 Bytes #999 (0) @ USA
BID : 8534_KF5JRV
Read: GUEST
Subj: NWS USA WX Forecast 1/9
Path: IW8PGT<CX2SA<N9PMO<NS2B<KF5JRV
Sent: 170109/1215Z 8534@KF5JRV.#NWAR.AR.USA.NA BPQK6.0.13
Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
225 AM EST Mon Jan 09 2017
Valid 12Z Mon Jan 09 2017 - 12Z Wed Jan 11 2017
...Periods of heavy rain and snow expected to continue for much of the
West through midweek...
...Deepening low pressure expected to bring a mix of rain and snow from
the northern plains and 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, to many areas. A cold front will move across the Great Basin and
into the Rockies today, lowering snow levels and changing precipitation
from rain back to snow by tonight at many lower elevation locations. Snow
will also be widespread at the higher elevations of the Rockies and the
northern Intermountain region, as well as mountain ranges across the West
Coast states. Heavy snow is possible for some of these areas. At the lower
elevations along the West Coast, rain will continue for many areas, some
of which could be heavy and lead to areas of flooding or flash flooding.
Another potent Pacific low pressure system will approach the coast Tuesday
afternoon and evening, bringing another round of potentially heavy
precipitation. Rising snow levels ahead of this system may once again
change some mountain locations over to rain, before changing back to snow
as the system moves inland Tuesday night and Wednesday.
Upper-level energy will cross the Rockies and move into the plains today,
with a low pressure system expected to begin taking shape tonight across
the northern plains. Snow is expected to develop today across the northern
plains, spreading east into the Midwest and Great Lakes tonight and
Tuesday morning. As the low pressure system begins to deepen more quickly
across the Midwest on Tuesday, warmer air will be pulled northward,
changing snow to rain across much of the Great Lakes by Tuesday afternoon
and evening. Farther south, showers and thunderstorms are expected Tuesday
and Wednesday from the Ohio valley to the Tennessee and lower Mississippi
valleys. Precipitation is also expected to spread into the Northeast on
Tuesday, beginning as snow for many areas and then gradually changing to
freezing rain or rain Tuesday night and Wednesday morning.
An arctic air mass will begin to subside across the eastern U.S., with
temperatures warming substantially through midweek across much of the
central and eastern U.S. High temperatures today will be 10 to 20 degrees
below average across portions of the Southeast and Mid-Atlantic regions.
Warmer air will begin building, however, with areas from the southern
plains to the Midwest temperatures rising to well above average on
Tuesday. Portions of the southern plains and mid-Mississippi valley could
see high temperatures 15 to 25 degrees above average on Tuesday.
Ryan
Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php
73 Scott KF5JRV
KF5JRV.#NWAR.AR.USA.NA
Read previous mail | Read next mail
| |
