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KF5JRV > WX 09.02.17 13:28l 63 Lines 2999 Bytes #999 (0) @ USA
BID : 10127_KF5JRV
Read: GUEST
Subj: NWS USA WX Forecast 2/9
Path: IW8PGT<CX2SA<N9PMO<NS2B<KF5JRV
Sent: 170209/1215Z 10127@KF5JRV.#NWAR.AR.USA.NA BPQK6.0.13
Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
300 AM EST Thu Feb 09 2017
Valid 12Z Thu Feb 09 2017 - 12Z Sat Feb 11 2017
...Heavy snow possible across parts of New England and the northern
Appalachians...
...Lake effect snow over parts of the Upper Great Lakes...
...Heavy rain possible over parts of Northern California and the Pacific
Northwest...
...A wintry mix of snow and ice possible near the Canadian Border in the
Pacific Northwest, with heavy snow possible in the higher elevations of
the Northern Rockies...
The strong low pressure system that impacted much of the eastern U.S. is
poised to move off the mid Atlantic coast today, and then travel northeast
and along seaboard. A strong surge of cold air will continue to push its
way across much of the eastern half of the conus behind this exiting
system. Some wrap around moisture near the low pressure system will likely
interact with this rapidly cooling airmass to produce snow across much of
New England, especially along the Atlantic coast, as well as upslope snow
showers for much of the central and northern Appalachians. A wintry mix of
rain and snow will be likely just along the coast through this morning.
Lake Effect snow showers will also be possible in downwind regions of the
Upper Great Lakes today, stretching across the Lower Great Lakes tonight
and Friday.
Another strong center of low pressure continues to spin off the Pacific
Northwest coast. A warm front associated with this system caused a surge
of warm moist air across the region yesterday and overnight. Today, the
warm front will continue to lift into Canada, but the associated cold
front will begin impacting the coast. This will bring yet another round of
moisture across the region. Given the warm airmass currently in place,
conditions will be set for most locations to see precipitation in the form
of rain as this cold front moves through. However, locations closer to the
Canadian border could still see snow or a wintry mix of snow, rain, and
ice over the next couple of days. Colder air will move in behind the
frontal passage, bringing a mix of rain and wintry precipitation to much
of the region by Friday, and continuing into the weekend.
Winter storm warnings and advisories are currently in effect for much of
Washington, northern Idaho, west and northern Montana, and western
Wyoming. While many of the affected lower elevations will see a
combination of ice and snow, some higher elevations of the Bitterroots,
Absarokas, and Wind River Mountains could see additional heavy snows, with
accumulations in excess of a foot through Friday. Meanwhile, for the
remaining Pacific Northwest that is expecting rain today, flood watches
and warnings are in effect for the coastal areas of Washington, much of
Oregon, north and central California, southern Idaho and northern Nevada.
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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