462
FXUS63 KFGF 250839
AFDFGF

Area Forecast Discussion
National Weather Service Grand Forks ND
339 AM CDT Wed Sep 25 2024

.KEY MESSAGES...

- The probability for weather impacts in the next 7 days is low.

&&

.DISCUSSION...
Issued at 338 AM CDT Wed Sep 25 2024

Upper level ridging continues to dominate the weather pattern across
the Dakotas and Minnesota this week. The amplification of the ridge
keeps the shortwaves north of the border, but brings the chance for
breezy conditions as LLJ`s have the potential to develop ahead of
those shortwaves. Precipitation also remains north of the
International Border during this time keeping conditions dry, with
low relative humidity values. Change of flow is anticipated as we
get into the end of the weekend and early next week, with
precipitation chances increasing and temperatures cooling.

Current satellite has a few clouds lingering across the region, with
light and variable winds. A observations in lakes county have patchy
ground fog developing as dew point depression reach zero, skies are
clear, and the winds are light and variable. This continues through
the mid morning. Skies remain mostly sunny today, with temperatures
reaching 10-15 degrees above normal as highs hit the upper 70s to
mid 80s. RH values drop to the mid 30s in the southern Red River
Valley during the afternoon and early evening hours, but winds
remain below 15mph limiting any fire weather concerns.

A LLJ starts to develop Thursday afternoon, with 925mb winds in
eastern North Dakota and northwestern Minnesota reaching 35-40kts.
Lapse rates of 8-9.5 C/km through the 925mb level would allow for
breezy conditions in the afternoon and evening hours Thursday.
Probabilities of seeing wind gusts 35kts or higher are 60% for
eastern North Dakota and 30-40% for the Red River Valley.
Probabilities of seeing advisory level winds are 20% for the Devils
Lake Basin. RH values during this time are in the low to mid 30s for
southeastern North Dakota and northwestern Minnesota, with the mid
30s in the Devils Lake Basin through northeastern North Dakota. Fire
weather is worth monitoring, but not a concern as of right now.

Continued warm conditions are expected end of the work week and into
the weekend, with highs in the upper 70s to mid 80s. Dry conditions
are expected during this time, with RH values ranging from the mid
30s to lower 40s. Next chance for precipitation comes early next
week as the ridge breaks down.

&&

.AVIATION /06Z TAFS THROUGH 06Z THURSDAY/...
Issued at 1113 PM CDT Tue Sep 24 2024

VFR conditions prevail through the period at all sites. Clear
skies are expected to persist through the overnight period with
a low chance for patchy fog early Wednesday morning. Look for
light and variable winds through mid morning with winds
increasing slightly by midday.

&&

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

&&

$$

DISCUSSION...Spender
AVIATION...Lynch