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National Weather Service Gaylord Michigan
325 am EDT Tuesday Jul 7 2015

Near term...(today through tonight)
issued at 325 am EDT Tuesday Jul 7 2015

High impact weather potential...locally heavy rain north central and
NE lower this morning...with perhaps a rumble of thunder.

Cold front is near a Rogers City-htl line as of this typing. Showers
continue in a band either side of the front...though western
chip/Mack counties are starting to dry out. Thunder has been
minimal. Much cooler/drier air is advancing eastward behind the
front...thanks to high pressure in the Dakotas. Precipitation/sky
cover/wind trends are the main concerns in the near term.

Today...widespread rain showers will continue in southern and eastern
sections through 12z. In northwest sections...rain showers will diminish with time
very early this morning. By 12z/8am...expect precipitation to be largely
done in eastern Upper Michigan...on down to the gd trav Bay region. But
moderate to heavy rain will be ongoing near and southeast of an htl-apn
line....just behind the cold front which will be crossing Saginaw
Bay. Certainly potential for a solid inch of rain this morning in southeast
sections. However...this activity will dwindle as the cold front
continues southeast. Expect little if any precipitation after 18z/2pm.

There is a considerable amount of cloud cover (though not a complete
overcast) well to our northwest...to north of Superior. Anticipate seeing
more clouds than sun this morning...even well behind the precipitation
area. Will see gradual improvement this afternoon...as July sun
GOES to work. Daytime highs will range from the middle 60s to
lower 70s. Breezy northwest winds will be 15 to 25 miles per hour and gusty in
exposed locales.

Tonight...any remaining cloud cover will have become cellular cumulus by
early evening...and will quickly dissipate. High pressure will move
into WI...extending ridging into lower Michigan. The exited cold front
will still be contributing to convection in the Ohio Valley and
eastern Great Lakes. Associated cirrus may clip areas near Saginaw
Bay. Otherwise...skies will become mostly clear. Winds will
gradually decouple as skies clear and the pressure gradient relaxes.
The result will be a chilly night...with min temperatures mainly in the 40s.

&&

Short term...(wednesday through Thursday night)
issued at 325 am EDT Tuesday Jul 7 2015

High pressure more or less holds across the region while slowly
weakening over the next few days. This is expected to keep a series
of low pressure systems riding along a stalled out frontal boundary
to our south at Bay. A more moist return flow in combination with a
possible short wave or two moving through the flow will bring
chances for showers and thunderstorms to the region over the weekend
into early next week. The main short term forecast concerns are
minimal but will center around how quickly we warm up.

Wednesday right on through Thursday night...surface high pressure
slowly weakens through this time period. This high should remain
strong enough though to keep a stationary boundary stalled out to
our south (and the associated low pressure systems riding along it)
at Bay. Meanwhile...heights aloft will be slowly on the rise leading
to moderating temperatures. Highs Wednesday generally in the lower
and middle 70s with middle to upper 70s expected Thursday. Lows in
the middle 40s to lower 50s Wednesday night then mainly the 50s
Thursday night.

&&

Long term...(friday through monday)
issued at 325 am EDT Tuesday Jul 7 2015

Extended models are in general agreement with a warmer and more
moist southwest flow developing. However...the amount of available
moisture (gfs more moist) and the extent of warming (gfs much
warmer) are in question. At this point will continue chance probability of precipitation for
showers and thunderstorms starting on Saturday and continuing
through Monday. However...if model trends continue...precipitation
chances may be delayed (especially northeast). Will continue the
slow warming trend as well but not get too crazy with raising highs
just yet.

&&

Aviation...(for the 06z tafs through 06z Tuesday night)
issued at 1154 PM EDT Monday Jul 6 2015

Cold front stretches from eastern Upper Michigan into the tip of
the mitt...then down through Northern Lake Michigan. Front will be
passing through through northern lower Michigan within the 05z to 08z
timeframe. This will quickly turn winds from the southwest to the
northwest. Still looking at a few batches of heavier showers to
move through northern lower Michigan ahead and along the front through
the course of the night into Tuesday morning.

After frontal passage...a period of MVFR-IFR ceilings will spread into northern lower
Michigan overnight and may linger through at least midday Tuesday.
But strong drying should return things back to VFR by later in the
day and especially by Tuesday evening.

Winds...again...shifting sharply from S/SW to northwest/north-northwest at frontal passage.
Some modest gustiness develops on Tuesday.

&&

Marine...
issued at 325 am EDT Tuesday Jul 7 2015

Breezy northwest winds today behind a cold front now crossing northern
lower Michigan. Small craft advisories already up for part of the NE
lower Michigan coast...additional advisories are being considered.
Winds will quickly diminish this evening...as high pressure builds
in from the west.

&&

Apx watches/warnings/advisories...
Michigan...none.
LH...Small Craft Advisory until 6 PM EDT this evening for lhz347-348.

Lm...none.
Ls...none.
&&

$$

Near term...jaz
short term...Sullivan
long term...Sullivan
aviation...Adam
marine...jaz

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