Area Forecast Discussion
Issued by NWS Aberdeen, SD

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FXUS63 KABR 211733 AAC
AFDABR

Area Forecast Discussion...UPDATED
National Weather Service Aberdeen SD
1233 PM CDT Sun Apr 21 2019

.UPDATE...
Issued at 1039 AM CDT Sun Apr 21 2019

Updated the forecast this morning, mainly to lower sky cover over
much of the CWA. Light showers are moving into the extreme
southwest CWA this morning, however with dry air in place, it will
be a while before moves beyond Highway 83. Based on the 12Z HREF,
may need to delay pops a bit more through this evening.

UPDATE Issued at 627 AM CDT Sun Apr 21 2019

See updated aviation discussion below.

&&

.SHORT TERM...(Today through Monday Afternoon)
Issued at 345 AM CDT Sun Apr 21 2019

North breeze this morning, with just isolated shower/thundershower
activity now moving into the far eastern CWA. Low pressure will form
to the south, bringing shower activity to mainly south of 12 or 212
through late today into Monday. Not much overall CAPE with this
feature in our CWA, so just rain showers going forward. Gradient
comes up a little so that explains why mixed winds today are
creeping into the 30kt range. CAA and clouds and unfavorable mixing
will suppress temperatures as well.

.LONG TERM...(Monday Evening through Saturday)
Issued at 345 AM CDT Sun Apr 21 2019

High pressure will be the dominant feature over the area Monday
night and Tuesday, keeping conditions dry. A frontal boundary will
track across the area on Wednesday, with scattered showers possible,
mainly in the evening. Weak high pressure moves back in late
Wednesday night and Thursday, then a low pressure system will slide
across the Rockies Friday night, and across the Northern Plains on
Saturday, bringing the next chance for rain.

High temperatures will be in the 60s to lower 70s through the
period, with overnight lows in the upper 30s to mid 40s.

&&

.AVIATION...(For the 18Z TAFS through 18Z Monday Afternoon)
Issued at 1231 PM CDT Sun Apr 21 2019

Prevailing VFR conditions are expected across most of the area
today. Rain showers will develop across the area this evening,
with the best chances for seeing rain across the southern and
eastern parts of the CWA, including KATY. MVFR cigs and periods
of MVFR vsbys are expected with the rain this evening into the
overnight hours.

&&

.ABR WATCHES/WARNINGS/ADVISORIES...
SD...None.
MN...None.
&&

$$

UPDATE...SD
SHORT TERM...Connelly
LONG TERM...Parkin
AVIATION...SD


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