Area Forecast Discussion
Issued by NWS Grand Forks, ND

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FXUS63 KFGF 060354

Area Forecast Discussion
National Weather Service Grand Forks ND
954 PM CST Tue Dec 5 2017

Issued at 954 PM CST Tue Dec 5 2017

No updates needed.


.SHORT TERM...(This evening through Wednesday)
Issued at 228 PM CST Tue Dec 5 2017

The main impacts tonight through Wednesday will continue to be
reduced visibility and snow and ice covered roads as a result of
patchy blowing and drifting snow, particularly in parts of northwest
MN. More of the same in terms of winds and temperatures Wednesday.
Winds will weaken diurnally a bit overnight and will be slightly
weaker but still breezy Wednesday, as the pressure gradient slowly
relaxes from tonight through Wednesday night. Breezy conditions
combined with lows in the single digits will result in subzero
wind chill values for tonight and Wednesday morning.

Additionally, chances for light snow remain across northwest and
west central Minnesota tonight and through Wednesday, especially in
the Lake of the Woods to Bemidji area, as weak upper level energy
and increased moisture churn around the backside of a low pressure
system near Hudson Bay. Probabilistic guidance indicates snowfall
totals of less than an inch are likely. Where light snowfall occurs,
it will likely be difficult to differentiate between this and
blowing and drifting snow, other than perhaps for further reduced

.LONG TERM...(Wednesday night through Tuesday)
Issued at 228 PM CST Tue Dec 5 2017

Little change to the overall pattern over the next week with weather
impacts on the low side. Long wave pattern across the Northern
Hemisphere has developed as expected for the last 2 to 3 weeks with
western CONUS ridge and eastern CONUS trough. In between the
northern plains clipper systems moving along, the NNW mean flow
will bring threat of light snow. The first clipper in the extended
is expected Friday across the eastern areas of FA. This weekend
the ridging to the west relaxes some and flow becomes more
northwesterly with the cooler air pushing east. This will allow
daytime highs to rise from the teens east and 20s west on Thursday
and Friday to 20s on Saturday and even some 30s on Sunday. Cooler
Monday and Tuesday with another wave moving through bringing
another round of light snow.


.AVIATION...(For the 00Z TAFS through 00Z Wednesday evening)
Issued at 622 PM CST Tue Dec 5 2017

Models are showing the clouds over northwest Minnesota backing up
tonight into early Wednesday. They should therefore hang around
KBJI and KTVF and may back up toward the northern Red River
Valley. At this point, they are MVFR. Otherwise, wind speeds
remain the main story. Wind gusts should decrease overnight and
then pick up again Wednesday morning.




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