Area Forecast Discussion
Issued by NWS Grand Forks, ND

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FXUS63 KFGF 240844

Area Forecast Discussion
National Weather Service Grand Forks ND
344 AM CDT Mon Jul 24 2017

.SHORT TERM...(Today and tonight)
Issued at 330 AM CDT Mon Jul 24 2017

Surface high pressure will shift east today setting up warm
advection and increasing return flow. With convective temperatures
around 100 there should be plenty of solar which should all
combine to boost temperatures above average from valley west and a
few degrees cooler east of the valley.

Low level boundary associated with next wave will still be over
western North Dakota early this evening reaching the far nw FA
towards midnight. Bulk shear sufficient after midnight with
convective parameters looking marginal and best upper forcing
north of the border. With lack of low level jet and above feel
convection will be spotty and will maintain chance pops overnight.
Respectable amount of CIN to overcome from roughly highway 2
southward so feeling best potential will be across the north.

.LONG TERM...(Tuesday through Sunday)
Issued at 330 AM CDT Mon Jul 24 2017

Severe potential Tuesday will hinge on position of cold front.
Latest model guidance having boundary a little farther east at
prime heating which would limit areal coverage of severe
potential. SPC day 2 svr potential unchanged so maintain current

Convection Tuesday night mainly will be across the far southern fa
as boundary sags slowly south.

Wednesday looks dry with seasonal temperatures.

Northern stream was located over northern and eastern Canada while
the southern stream was along the International border. Pattern
amplifies a bit through the period. Long wave ridge over the Desert
Southwest retrogrades a bit to the northwest and also builds a low
amplitude ridge over western Canada. Longwave trough over northern
Canada moves north of Hudson Bay and also creates a low amplitude
trough over the eastern US.

The GFS was a faster solution than the ECMWF. Both the ECMWF and the
GFS were trending farther north over the last couple model runs.
Will blend the models.

Little change to high temperatures for Thu and Sat. High temps were
increased one degree for Fri and increased two to four degrees for
Sun from yesterdays forecast.


.AVIATION...(For the 06Z TAFS through 06Z Monday night)
Issued at 1143 PM CDT Sun Jul 23 2017

VFR thru the pd. Some patchy fog in MN lakes country 09z-13z.
Otherwise light winds increasing to southerly 15-20 kts with gusts
to 25 kts in the RRV and E ND Monday afternoon.




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