Area Forecast Discussion
Issued by NWS Twin Cities, MN

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FXUS63 KMPX 150859

Area Forecast Discussion
National Weather Service Twin Cities/Chanhassen MN
359 AM CDT SAT OCT 15 2016

.SHORT TERM...(Today and tonight)
Issued at 359 AM CDT Sat Oct 15 2016

The main concerns in the near term...timing of cold
trends along with temperatures.

Strong southerly flow remains across the cwa ahead of the cold front
in the eastern Dakotas this morning. Lower stratus did develop across
much of the region after midnight.  This trend should continue
through the morning as the front moves into western Minnesota.
Little in the way of forcing with the it will most likely
moves through much of the MN cwa dry.  Some patchy drizzle remains
possible during the morning in the lower cloud region. The front
should move into western Wisconsin by this evening. A small chance
of thunder will accompany the front as it moves east by
little in the way of instability is present.  The stronger southerly
winds will gradually diminish as the front moves into the area.

Some small chance of lingering showers to the east into the early
evening...with clearing expected thereafter.  If we see enough
clearing to the east...we may see some fog and we did mention this
for late tonight. Temperatures will cool into the 40s over much of
the area with lower 50s to the southeast.

.LONG TERM...(Sunday through Friday)
Issued at 359 AM CDT Sat Oct 15 2016

The front won`t go too far Saturday night and will return Sunday
as southeast winds encompass the region ahead of another low
pressure system. The low levels will be dry and should respond
well to the WAA. 925 mb temps increase to the upper teens C across
southern MN and mid teens elsewhere by afternoon, and there should
be enough mechanical mixing to reach that level despite high
clouds increasing. Highs from the upper 60s to mid 70s seem like a
good bet per MOS and mixing to 925 mb.

Low level moisture will increase markedly late Sunday afternoon
from south to north. Dew points rising into the 65 to 70 degree
range is widely shown in the raw model output and in MOS Sunday
night. This is incredible considering normal lows this time of
year are 30 degrees colder. Raised lows several degrees across the
eastern two thirds of the area, where the highest dew points will
reside. We may even see some lows warmer and close to 70 in
rain-free areas if these dew points actually materialize.

A disturbance will pass overhead Sunday night with steep mid
level lapse rates in place atop a very moist boundary layer.
MUCAPEs of 1500 j/kg and 500 mb winds of 50+ kts are anticipated
so there could be some stronger storms capable of hail.

A front will drape itself across the area Monday and Monday night
with multiple disturbances riding along it. This will keep PoPs
in the forecast through at least that time.

A trough will finally push the front southeast for midweek, with
more typical weather for this time of year returning for the rest
of the period.


.AVIATION...(For the 00Z TAFS through 00Z Saturday evening)
Issued at 1016 PM CDT Fri Oct 14 2016

Expect the stratus deck to thicken/lower as the night progresses,
especially from eastern MN into west central WI. MVFR cigs are
expected to lower to IFR/LIFR around/after 06z with drizzle and
BR also expected to develop. The low stratus will likely linger
through Saturday morning, with VFR slowly returning toward 00z.
Winds will stay gusty from the south then gradually veer southwest
then west/northwest with the frontal passage Saturday.

MVFR conditions are expected to deteriorate to IFR overnight with
vis restrictions due to drizzle and mist. Most of Saturday will be
plagued with the low stratus deck as well.

Sun...VFR. Chc MVFR with -TSRA late. Wind ESE 5-10 kts.
Mon...VFR. Chc MVFR with -SHRA. Wind Variable around 5 kts.
Tue...VFR. Wind Northwest 7-10 kts.


.MPX Watches/Warnings/Advisories...


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