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KF5JRV > WX 07.03.17 12:26l 55 Lines 2494 Bytes #999 (0) @ USA
BID : 11837_KF5JRV
Read: GUEST
Subj: NWS USA WX Forecast 3/7
Path: IW8PGT<CX2SA<N9PMO<NS2B<KF5JRV
Sent: 170307/1116Z 11837@KF5JRV.#NWAR.AR.USA.NA BPQK6.0.13
Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
315 AM EST Tue Mar 07 2017
Valid 12Z Tue Mar 07 2017 - 12Z Thu Mar 09 2017
...Another round of heavy snow is expected across the Pacific Northwest
and inland to the Northern Rockies over the next couple days...
...A line of showers and thunderstorms will continue to push across the
eastern U.S. today...
...Snow showers are possible for the northern Upper Mississippi Valley and
Upper Great Lakes today and Wednesday...
As has been the pattern, as one low pressure exits the Pacific Northwest,
another one approaches. This next incoming low is expected to make
landfall by this evening, with a surge of moist air pushing inland ahead
of the system. As such, expect yet another round of heavy rain along the
coast of Northern California, Washington, and Oregon. Rain will change to
snow as it moves inland and into the higher terrain. The snow will be
heavy at times, persisting over the next couple of days in many locations.
Winter Storm Warnings and Advisories are in effect from the Cascades
eastward into the Northern Rockies for the incoming snow.
Meanwhile, a robust surface low pressure system is still driving the
weather for much of the eastern U.S. This low is expected to slowly move
northeast along the Quebec/Manitoba line today and tonight, reaching the
Hudson Bay by Wednesday. A potent cold front extending southward from this
low will continue to sweep eastward, impacting areas east of the
Mississippi River and near the Gulf of Mexico today. Widespread rain and
thunderstorms will be the main concern ahead of the cold front. The Storm
Prediction Center has outlined a portion of the lower Mississippi and
Tennessee Valleys as being in a slight risk for severe thunderstorms
through today, and an area extending from Eastern Texas into the northern
Tennessee Valley in a marginal risk. Please refer to the Storm Prediction
Center for additional information on the threat for severe weather.
Another reinforcing cold front will protrude southward from Canada on the
backside of the low. This will result in a strong push of arctic air into
the north central U.S. Lingering moisture across the region will collide
with this cold air to produce snow showers along the Canada border in the
Upper Mississippi Valley today, and in the Upper Great Lakes tonight and
Wednesday.
Wix
Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php
73 Scott KF5JRV
KF5JRV.#NWAR.AR.USA.NA
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