Area Forecast Discussion
Issued by NWS Marquette, MI

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FXUS63 KMQT 180007

Area Forecast Discussion
National Weather Service Marquette MI
807 PM EDT Sat Mar 17 2018

.SHORT TERM...(This evening through Sunday)
Issued at 251 PM EDT SAT MAR 17 2018

Quiet weather will continue through Sunday. Lows tonight will
generally be in the upper teens to lower 20s.

Sunday, a backdoor cold front will push into the area from Ontario
with high pressure building southward from northern Ontario as a
shortwave slides southeast from James Bay. With limited moisture
available, any weak/sheared clipper shortwaves in the confluent nw
flow may bring an increase in mid clouds but should produce little
more than a few flurries. Temperatures will be cooler across the
north.  Cooling won`t reach the WI border until late in the days so
highs will top out in the mid 40s again there.

.LONG TERM...(Sunday night through Saturday)
Issued at 251 PM EDT SAT MAR 17 2018

Dry weather will continue through most of next week. Split flow
pattern will prevail across the U.S. Confluent mid/upper level flow
will support high pressure through northern Ontario into the
northern Great Lakes. This will keep any precipitation chances south
of the Great Lakes. Models differ on how the amplifying upper
pattern will evolve by next weekend. As upper troughing pushes out
of the western U.S. a surface low should develop over the Plains and
push toward the OH Valley by next weekend. A dissipating band of
light warm advection snow could affect the western U.P. Friday night
into early Saturday.

High temps through the middle of next week will remain a little
below normal dominated by cool northeasterly low level flow.
Temperature will modify closer to normal by late in the work week.

.AVIATION...(For the 00Z TAFS through 00Z Sunday evening)
Issued at 804 PM EDT SAT MAR 17 2018

A cold front moving in from the NE late tonight and Sun morning
should lead to reduced CIGs at KCMX and KSAW, but not precipitation.
The exact height of those CIGs is uncertain.

.MARINE...(For the 4 PM Lake Superior forecast issuance)
Issued at 251 PM EDT SAT MAR 17 2018

No significant winds are expected through the forecast period, with
winds generally staying at or below 20 knots.

Upper Michigan...
Lake Superior...
Lake Michigan...


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