Area Forecast Discussion
Issued by NWS Grand Forks, ND

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FXUS63 KFGF 240835
AFDFGF

Area Forecast Discussion
National Weather Service Grand Forks ND
335 AM CDT Sat Jun 24 2017

.SHORT TERM...(Today and tonight)
Issued at 315 AM CDT Sat Jun 24 2017

Challenge will be rain shower placement with passage of upper low
and def zone rain band across the northern FA this afternoon.
Clouds and rain showers combined with NW winds sustained between
15 to 25 mph, from east to west, will create an unseasonably cool
and raw last saturday of June with max temps for much of the area
held under 60F.

Center of the upper low moving into SE ND this morning with an
area of showers heading for the southern Red River valley. Second
area of rain expected to move into the Devils Lake basin and
northern valley late this morning to early afternoon as band of
700mb Omega slides south with the upper low. Primarily showers
with a thunder chance in the east as some instability may develop
this afternoon. Area of rain will move to the east overnight with
temps falling into the 40s with clearing commencing in the
evening form west to east behind the exiting system. Generally
less than a tenth total of rain with some spots seeing up to a
quarter of an inch.

.LONG TERM...(Sunday through Friday)
Issued at 315 AM CDT Sat Jun 24 2017

Sunday will see another day in the 60s as the FA remains under the
influence of the cyclonic 500mb flow and associated cloudy and
cool canadian airmass. A few showers and perhaps a thunderstorm
will be possible in the afternoon with model soundings indicating
some instability with negative LIs developing in the afternoon.
SFC high pressure will work into the area Sunday night with a cool
morning setting up on Monday with lows in the 40s expected.
Moderating temps begin Monday as 500mb ridging and blyr thermal
profile warms. Max temps on Monday much closer to end of June
normals with low to mid 70s expected.

Tuesday to Friday Night...
The extended period begins with upper level ridging shifting over
the forecast area bringing warmer temperatures. Surface winds will
turn south and increase ahead of the next front, which will move
through Tuesday night into Wednesday. Anticipate increased moisture
on the nose of a 30 to 35-knot low level jet. Models also indicate
increased instability ahead of the system so expect increased
chances for thunder, especially in far eastern portions of North
Dakota and into Minnesota.

By Wednesday, as the system passes, expect some slight cooling and
breezy conditions, with scattered showers and some thunder possible.
Otherwise, looking for more zonal flow aloft along the Canadian
border. Impulses traversing the flow will help increase the chances
for showers through the end of the period.


&&

.AVIATION...(For the 00Z TAFS through 00Z Saturday evening)
Issued at 734 PM CDT Fri Jun 23 2017

Expect SCT-BKN VFR cigs through the late evening...with ceiling
slowly lowering and becoming BKN MVFR by early morning. Broken MVR
cigs should persist through Saturday morning...with most areas
lifting to VFR in the afternoon. Winds will remain from the
northwest through the period.


&&

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

$$

SHORT TERM...JK
LONG TERM...Hopkins/JK
AVIATION...Gust


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