Scientific Forecaster Discussion

Return to Local Conditions & Forecast

Without Abbreviations
With Abbreviations

fxus63 kfgf 261138 

Area forecast discussion
National Weather Service Grand Forks ND
638 am CDT Wed Jul 26 2017

issued at 637 am CDT Wed Jul 26 2017

No update necessary.


Short term...(today and tonight)
issued at 212 am CDT Wed Jul 26 2017

Quiet through the short term. Drier air will accompany surface
high pressure with precipitable h20 values between .75-1.0 inch.
Temperatures will be ranging right at seasonal averages.

Long term...(thursday through tuesday)
issued at 212 am CDT Wed Jul 26 2017

Quiet pattern will continue through the remainder of the work
week. Surface high pressure will gradually shift east setting up
return flow and modest warm advection Thursday night into Friday
for slightly warmer temperatures.

Long wave pattern amplifies a bit through the period with long wave
ridge building/sharpening north over western North America. Long
wave trough over eastern North America retrogrades and deepens a bit
with building upstream ridge. Flow aloft becomes more northwest over
the northern plains.

The GFS and the European model (ecmwf) are in reasonable agreement at the beginning
of the period but quickly become out of phase by 12z Mon over
eastern Canada. Both the European model (ecmwf) and the GFS were trending slower and
farther south and west.

High temperatures were increased a degree on Sat and sun. Also highs
were increased one to two degrees on Tue and zero to three degrees
on Mon from yesterdays run.


Aviation...(for the 12z tafs through 12z Thursday morning)
issued at 637 am CDT Wed Jul 26 2017

VFR conditions through the period.


Fgf watches/warnings/advisories...


National Weather Service Glossary of Abbreviations