Area Forecast Discussion
Issued by NWS Grand Forks, ND

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FXUS63 KFGF 260836

Area Forecast Discussion
National Weather Service Grand Forks ND
336 AM CDT Wed Oct 26 2016

.SHORT TERM...(Today and tonight)
Issued at 314 AM CDT Wed Oct 26 2016

The main 500 mb short wave trough is moving into southwestern MN
and far northwestern Iowa and the 850 mb frontogenesis has shifted
to far SE MN into southern Wisconsin. Thus have seen a gradual
downward trend in precip in E ND and NW/WC MN. But broad upper
level trough does extend northwest to connect with the northern
stream 500 mb short wave over central Saskatchewan. The entire
system will move slowly east today. Thus look for areas of light
rain focusing in NW MN this morning and gradually ending this
aftn. In E ND...areas of fog and drizzle replacing the light rain
areas. Overall clouds today, but cool advection minimal but with
clouds temps will be cooler than on Tuesday.

Tonight will see some gradual clearing into E ND and the RRV. Will
have to watch for fog potential with light winds.

.LONG TERM...(Thursday through Tuesday)
Issued at 314 AM CDT Wed Oct 26 2016

South winds return Thursday into early Friday ahead of next cold
front due to move through Friday morning. Precipitation will
remain generally north of the International border late Thu night
into Friday. Based on coordination with WFO BIS did up winds over
the blended guidance for Friday behind the front where 925 mb
winds of 35 kts will be seen and mixing will be sufficient to
bring that down.

Upper level features show a more zonal pattern with periods of
precipitation as a wave crosses the area later in the period.

For Saturday...model guidance remains in good agreement with placing
surface high pressure across the region with partly cloudy
conditions and light winds. By Sunday...the high pressure retreats
eastward with return flow and increasing thicknesses pointing toward
moderating temperatures. Tightening pressure gradient on Sunday will
see some gustiness associated with the south to southwest winds.

By Monday and Monday night...a wave crosses the area providing
chances for measurable precipitation. Looking at an initial round of
pcpn associated with a warm frontal boundary with wrap around
moisture in the wake of a cold front. Thickness values and 850mb
temps show rain as the main form of pcpn at this time. Tuesday the precipitation will move out of the area
and cooler conditions are expected in its wake.


.AVIATION...(For the 06Z TAFS through 06Z Wednesday night)
Issued at 1145 PM CDT Tue Oct 25 2016

Cigs still expected to drop to mvfr/ifr range from west to east as
rain shifts east. Guidance not very excited about thick fog so
left out of forecast but will need to monitor. Low cigs to persist
through tomorrow morning.




LONG TERM...Hopkins/Riddle
AVIATION...Voelker is the U.S. government's official web portal to all federal, state and local government web resources and services.