841 
FXUS63 KFSD 300903
AFDFSD

AREA FORECAST DISCUSSION
National Weather Service Sioux Falls SD
403 AM CDT Tue Apr 30 2019

.SHORT TERM...(Today and Tonight)
Issued at 358 AM CDT Tue Apr 30 2019

The morning will start off rainy for many, with mid-level 
frontogenesis helping to create a band of precipitation over the 
Sioux Falls region. This band weakens through the morning hours. Periods
of rain are expected throughout the day as a broad upper level 
trough sits to the west; however, rain amounts and shower coverage
is expected to lessen during the afternoon and evening, as the 
only distinct forcing feature will be well to the south and 
southeast (a shortwave trough moving through Kansas into 
Missouri). Daytime temperatures will be cool and about 15 degrees 
below average as light easterly surface winds continue to advect 
in a cool continental polar air mass.

Slight chances for showers remain overnight into Wednesday, but 
overall rain amounts will be minimal. Cloudy skies persist, with 
low temperatures around 40.


.LONG TERM...(Wednesday through Monday)
Issued at 358 AM CDT Tue Apr 30 2019

Wednesday into Wednesday night will continue to bring cloudy skies 
as the relatively stagnant trough remains over the western CONUS. 
Again, no distinct forcing features look to move through, so overall 
rain coverage will be spotty, with only light amounts forecast due
to a weak upper wave.

Thursday will be mostly dry and on Friday breezy southerly winds 
gusting 25 to 35 mph develop ahead of an incoming shortwave. 
Temperatures recover closer to seasonal normals as warmer air is 
brought in from the south. The front which will pass during the 
afternoon and evening doesn't appear overly strong, but a few 
thunderstorms and another hour or two of light to moderate rain 
looks likely. 

For the weekend and into early next week, the region remains under 
the jet stream, and several impulses will feed off the jet's 
baroclinicity, bringing chances for scattered showers every 36 hours 
or so. None of these weather systems are notable, with no major 
pattern change. Saturday should be the warmest day of the next 
seven, but even then, temperatures will only climb to near or 
slightly above average. Next week starts off with high 
temperatures in the upper 50s to low 60s.


&&

.AVIATION...(For the 06Z TAFS through 06Z Tuesday night)
Issued at 1040 PM CDT Mon Apr 29 2019

Periods of rain showers will be possible over much of the TAF 
period, with some snow mixing in across central South Dakota west 
of KHON overnight. Ceilings will lower into the MVFR range 
overnight and then eventually toward IFR for Tuesday. Showers will
come to an end from west to east very late in the TAF period
although ceiling/vsby restrictions will likely hold on longer. 


&&

.FSD WATCHES/WARNINGS/ADVISORIES...
SD...NONE.
MN...NONE.
IA...NONE.
NE...NONE.
&&

$$

SHORT TERM...VandenBoogart
LONG TERM...VandenBoogart
AVIATION...Kalin