Area Forecast Discussion
Issued by NWS Sioux Falls, SD

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FXUS63 KFSD 240905

Area Forecast Discussion
National Weather Service Sioux Falls SD
305 AM CST Fri Nov 24 2017

.SHORT TERM...(Today and Tonight)
Issued at 302 AM CST Fri Nov 24 2017

Today starts out quite mild, as light south winds keep overnight
lows well above freezing. A dry cold front will begin moving through
the region during the late morning hours. This will bring widespread
25 to 30 mph winds during the afternoon, gusting 40 to 45 mph at
times, which is plenty to blow over trash cans and other loose
objects. Along with the winds, humidities will be low, leading to
elevated fire danger, especially west of the James River. Some
mid-level cloud cover is possible with the front, but a dearth of
moisture will mean no precipitation is expected. Winds decrease
quickly around sunset as the boundary layer decouples.

.LONG TERM...(Saturday through Thursday)
Issued at 302 AM CST Fri Nov 24 2017

The weekend and week ahead continue to look mostly dry. An upper
level ridge builds for the weekend, keeping mostly clear skies and
above average temperatures. Monday looks like another exceptionally
warm day similar to Thanksgiving Day, with mostly clear skies and
strong southerly warm advection. Another cold front moves through
Tuesday, bringing breezy northwest winds. A cutoff low pressure
migrates south of the area Wednesday, with most models keeping
precipitation south of the area with this system; a few bring rain
as far north as Sioux City, so this is worth keeping an eye on for
those with plans mid-week.

For the end of the work week, a trough of low pressure will advect
cooler Canadian air in from the northwest, decreasing temperatures
closer to seasonal values, with highs Thursday and Friday in the
40s and lows in the 20s.


.AVIATION...(For the 06Z TAFS through 06Z Friday night)
Issued at 1052 PM CST Thu Nov 23 2017

VFR conditions will continue through the period. Surface winds
gusts near 25 kts will continue tonight in parts of southwest MN
near and downstream of the Buffalo Ridge through 10z, but prospect
for low-level wind shear remains too marginal on value to mention
for KFSD and KSUX forecasts at this point. A strong cold front
will press across the area during the morning and very early
afternoon, and will be followed by frequent northwest wind gusts
of 25 to 35 kts.




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