Area Forecast Discussion
Issued by NWS Marquette, MI

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FXUS63 KMQT 161124

Area Forecast Discussion
National Weather Service Marquette MI
724 AM EDT Fri Mar 16 2018

.SHORT TERM...(Today and tonight)
Issued at 404 AM EDT FRI MAR 16 2018

No major weather impacts expected in the short-term forecast.

High pressure will build across the Upper Great Lakes region today
and linger through tonight. This will provide mostly clear skies
with light and variable winds. High temperatures today will warm
into the mid and upper 30s to low 40s. Overnight lows will cool to
the single digits over the inland west U.P., while the rest of the
area sees low to mid teens.

.LONG TERM...(Saturday through Thursday)
Issued at 452 AM EDT FRI MAR 16 2018

Models suggest that a split flow pattern will prevail from this
weekend through next week. With the more active weather remaining
well to the south, the northern Great Lakes will be dominated by
sfc ridging from Hudson Bay and northern Ontario which will
maintain dry weather.

Saturday, wrly flow in advance of a weak low moving north of Lake
Superior will bring a brief warmup with temps into the mid 40s west
and south the the mid 30s east.

Sunday, a backdoor cold front will push into the area as high
pressure builds through northern Ontario. With limited moisture
available, any weak/sheared clipper shortwaves in the confluent nw
flow should produce little more than a few flurries.

Sunday night into Monday, ne flow with 850 mb temps to around -12C
will provide only marginal instability for any LES, especially with
very dry air upstream. Temps, however will drop below normal with
highs from the upper 20s north to lower 30s south.

Tue-Thu, temps will gradually moderate to near normal by the end of
the week as the plains ridge gradually expands to the east. With
northerly flow developing by Wednesday into Thursday, and with 850
mb still to around -12C with the mid level trough axis through the
area, some light snow showers or flurries may again be possible that
may be aided by early Springtime diurnal heating. However, no
accumulations are expected.

.AVIATION...(For the 12Z TAFS through 12Z Saturday morning)
Issued at 724 AM EDT FRI MAR 16 2018

VFR conditions will continue at all sites through the period.

.MARINE...(For the 4 AM Lake Superior forecast issuance)
Issued at 404 AM EDT FRI MAR 16 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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