Area Forecast Discussion
Issued by NWS Grand Forks, ND

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279
FXUS63 KFGF 201301
AFDFGF

Area Forecast Discussion
National Weather Service Grand Forks ND
701 AM CST Fri Jan 20 2017

.UPDATE...
Issued at 700 AM CST Fri Jan 20 2017

Temperatures not expected to change much through the day. Dewpoint
depressions were small and are expected to remain that way today.


&&

.SHORT TERM...(Today through Sunday night)
Issued at 400 AM CST Fri Jan 20 2017

Water vapor loop indicated an upper low over eastern SD. Upper low
will move north then northwest today and tonight. Radar indicated a
band of rain over central MN moving northwest. rain is expected
mainly over northwest MN for today then lift north tonight.
Elsewhere very light rain or drizzle can be expected.

Another upper level trough on the water vapor loop was indicated
over the TX panhandle. Upper trough will move into the Northern
Plains Sat and more or less park over area. Upper low will produce
light precipitation over the forecast area Sat through late Sun
night.

.LONG TERM...(Monday through Thursday)
Issued at 400 AM CST Fri Jan 20 2017

Monday through Thursday...The upper trough will lift off into
western Ontario, although models are all in fairly good agreement on
some light precipitation lingering over northwestern MN. Temps will
range from the 20s to mid 30s, so kept it a snow/freezing
drizzle/drizzle mix. Another upper low will move across the Central
Plains into into IA and southern MN on Tuesday. The GFS continues to
clip the southern counties although the ECMWF has decent QPF further
south, so will keep 20-30 POPs going for near the SD border. After
the southern system moves by a shortwave trough digs down out of
Canada, bringing a slight chance for some light snow and a bit of
colder air down into the area for Wednesday and Thursday. Even with
the cold air advection the arriving air mass is not frigid, so
continue to think that temperatures will remain above seasonal
averages.

&&

.AVIATION...(For the 12Z TAFS through 12Z Saturday morning)
Issued at 700 AM CST Fri Jan 20 2017

IFR conditions were across the entire forecast area with cigs under5
hundred ft and visibilities under 2 miles in fog. Expect IFR to LIFR
conditions for today and friday night.

&&

.FGF WATCHES/WARNINGS/ADVISORIES...
ND...None.
MN...None.
&&

$$

UPDATE...Hoppes
SHORT TERM...Hoppes
LONG TERM...JR
AVIATION...Hoppes



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