053 
FXUS63 KFSD 082328
AFDFSD

AREA FORECAST DISCUSSION
National Weather Service Sioux Falls SD
628 PM CDT Sat Jun 8 2019

.SHORT TERM...(This Evening through Sunday)
Issued at 301 PM CDT Sat Jun 8 2019

Convective debris west of the James River Valley leading to weak 
elevated storms.  As cold front approaches from the west, expect to 
see more surface based storms develop along the James River Valley 
late this afternoon into the early evening hours.  Bulk shear 
remains weak, but on initial development could see a few strong 
storms develop marginally severe hail/winds.  

Cold front will work through the region through the overnight
hours. Strong cold air advection behind the front will result in 
gusty winds. Temperatures tonight should easily fall back into 
the 50s with current afternoon temperatures in the 50s and 60s
behind the front.

With the upper wave hanging across the west, could see scattered 
showers and thunderstorms linger throughout the day on Sunday. Have 
raised cloud cover and pops, and lowered temperatures slightly in 
the east. Potential for instability showers to develop in the east
Sunday afternoon if atmosphere is able to sufficiently mixout. If
showers do develop, they will be high based with very light rain 
amounts.

.LONG TERM...(Sunday Night through Saturday)
Issued at 301 PM CDT Sat Jun 8 2019

Cooler week expected as upper level northwest to southeast flow 
draws canadian air into the center portion of the country.  Short 
wave passing through on Tuesday may lead to additional light showers 
across the region.  Northwest flow transitions to a more zonal 
pattern late in the week, with a few disturbances passing through. 
With increasing southerly winds drawing warmer air and moisture 
northward, could see additional storms with the potential for severe 
weather Friday night into Saturday. 

&&

.AVIATION...(For the 00Z TAFS through 00Z Sunday evening)
Issued at 618 PM CDT Sat Jun 8 2019

Scattered thunderstorms will continue to slolwy move east tonight
as a cold front moves through. -TSRA are expected across KHON 
after 00Z Sunday, at KFSD and KSUX later this evening. Some of 
the storms could become strong to marginally severe. Hail and 
gusty winds are the main risks. Scattered showers and isolated 
thunderstorms will continue on Sunday, mainly east of I-29. MVFR 
to IFR conditions are possible with thunderstorms, and early 
Sunday morning. 



&&

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

$$

SHORT TERM...BT
LONG TERM...BT
AVIATION...05