Area Forecast Discussion
Issued by NWS Grand Forks, ND

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FXUS63 KFGF 151757

Area Forecast Discussion
National Weather Service Grand Forks ND
1257 PM CDT Sun Oct 15 2017

Issued at 1257 PM CDT Sun Oct 15 2017

There could still be a few sprinkles for areas east of the Red
River Valley for another hour or two, otherwise the threat of any
pcpn is about past. Otherwise south winds are starting to switch
to the west northwest along and west of the Red River Valley with
the clearing moving back in. Despite the sunshine breaking out
this afternoon, the breezy winds will make it feel cooler.


.SHORT TERM...(Today and tonight)
Issued at 321 AM CDT Sun Oct 15 2017

Small area of high pressure near Grand Forks at 08z. Calm wind and
clear sky over the NE ND into far NW MN has allowed temps to drop
into the lower 20s. Patchy fog around Devils Lake airport, but
webcams show good vsby otherwise in that area. Also have had
patchy fog around GFK but that has since moved out. Will need to
watch for other areas of fog forming near dawn but so far coverage
is quite small. Of concern would be the rain areas of west central
into north central MN where skies are clearing late and temps
falling but ground is still wet. But drier air is advecting in so
this may help fog from becoming an issue.

Otherwise today will see a fast moving short wave drop southeast
from Saskatchewan into NE ND and into MN by aftn. Area of mid
clouds with this and also obs and radar near Regina SK indicate
some light -ra. Coordination with other office led to a small pop
for this morning over parts of NE ND and into late morning/early
aftn over NW/NC MN. Temps will rebound some today, but be held a
bit below normal with highs upper 40s to mid 50s.

.LONG TERM...(Monday through Saturday)
Issued at 321 AM CDT Sun Oct 15 2017

Confidence continues for a dry and warm work week ahead. Upper level
northwesterly flow aloft through the first half of the week will
allow for a short wave trough to pass through the region Monday.
This will likely have weak associated surface features, so the
passage of a dry, weak cold front/trough is possible. GFS guidance
suggests dry air present behind this front on Tuesday with relative
humidity values near twenty percent with west/southwesterly winds at
10 to 15 mph across the western most counties in North Dakota. Other
model guidance is not as dry or as warm as the GFS. However, given
the recent freeze conditions across that region and the above normal
temperatures expected attention may need to be given to fire weather
conditions on Tuesday.

A stronger upper level trough is expected to develop on the leeward
side of the Canadian Rockies Wednesday, but will likely only result
in the passage of another weak and dry cold front for the forecast
area on Wednesday. Upper level ridging is expected towards the
second half of the week along with the northward progression of a
warm, moist surface air mass. This may set moisture in place for
rain chances on Saturday as another cold front moves through the
region. Generally dry weather is expected for Sunday, but this may
change depending on the speed and progression of upper level and
surface features towards the end of the week.

High temperatures for Monday through Wednesday are expected to reach
the mid to upper 60s with overnight lows dropping to the upper 30s
and low 40s. Lows in the mid to upper 40s are expected for the
second half of the week. Thursday through Saturday will likely be
warmer with afternoon highs reaching the low 70s through the Red
River Valley. Saturday and Sunday should be slightly cooler with
temperatures in the 60s.


.AVIATION...(For the 18Z TAFS through 18Z Monday afternoon)
Issued at 1257 PM CDT Sun Oct 15 2017

Clouds and vsbys will stay in the VFR realm for the next 24 hours.
Winds will be the main story. As a trough moves through today,
south-southwest winds will turn to the west-northwest, and get a
little gusty at times at KDVL. Speeds will die down quickly this
evening, but will increase again by mid Monday morning.




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