Scientific Forecaster Discussion
Area forecast discussion
National Weather Service Duluth Minnesota
1233 am CDT Wednesday Jul 23 2014
Short term...(this evening through wednesday)
issued at 700 PM CDT Tuesday Jul 22 2014
High pressure will build over the forecast area through Wednesday.
The cooler northwest flow aloft will bring falling middle level temperatures and
promote steep low level lapse rates and strato-cumulus Wednesday
Long term...(wednesday night through tuesday)
issued at 400 PM CDT Tuesday Jul 22 2014
Surface high pressure will provide the Northland mostly clear skies
for Wednesday night and Thursday. A upper level ridge over the
northern plains will shift into the upper Midwest. This will provide
slightly warmer temperatures for Thursday compared to Wednesday.
An upper level low over the Pacific northwest Wednesday night will lift
into southern Alberta and southern Saskatchewan Thursday and
Thursday night. The associated surface trough or occluded
front...which will extend to the southeast into the northern plains...will
approach and move into the Northland later this week. This will
provide the Northland with low chances of showers and storms Friday
and Saturday. The upper low will likely move through the Northland
during the latter half of the weekend and continue to provide low
chances of showers and storms.
The models are suggesting that high pressure will move into the
central United States and provide the Northland with dry weather for
the early and middle of the week.
Aviation...(for the 06z tafs through 06z Wednesday night)
issued at 1232 am CDT Wednesday Jul 23 2014
VFR conditions will prevail through the taf period as a high
pressure ridge settles over the area.
Preliminary point temps/pops...
dlh 53 75 58 75 / 0 0 20 30
inl 47 78 56 77 / 0 0 30 30
brd 54 78 63 78 / 0 20 30 40
hyr 48 78 58 77 / 0 0 20 20
asx 48 76 55 75 / 0 0 10 20