Marine Weather and Tides
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|Sunrise 7:02AM||Sunset 7:18PM||Friday September 21, 2018 4:27 AM CDT (09:27 UTC)||Moonrise 6:39PM||Moonset 1:52AM||Illumination 87%|
7 Day Forecast for Marine Location Near Angle Inlet, MNHourly EDIT Help
Area Discussion for - Grand Forks, ND  (on/off)  Help NOTE: mouseover dotted underlined text for definition
|Fxus63 kfgf 210905|
area forecast discussion
national weather service grand forks nd
405 am cdt Fri sep 21 2018
Short term (today and tonight)
issued at 405 am cdt Fri sep 21 2018
positively titled trough has transition just east of of the nd mn
border, however a secondary jet streak and lingering moisture
advection has supported lingering drizzle light rain over our cwa
despite better forcing east of our area. Trend should be for this to
continue to transition eastward with drier air overspreading our
cwa by early afternoon. Another weak impulse may track north of
our CWA through southern canada late tonight and support a few
light showers near the international border (after midnight).
Otherwise, most locations should be dry after activity winds down
A note on early morning precip type: radar (supported by rap
analysis) does indicate there have been ice crystals a few thousand
feet aloft, but with wet bulb temps 3-6c in the lowest part of the
atmosphere this has melted and we have not seen any mixed precip at
the surface. Even if there were a few flakes early this morning,
ground temperatures are very warm and it would have melted and no
impacts would occur.
Temperatures today tonight: 0c line at 850mb transitions over our
cwa this morning with strong CAA on back side of mid level trough.
Surface high pressure quickly moves over our CWA and eastward with a
south-southwest gradient developing late tonight. There should be
breaks in cloud cover supportive of warming temps, but considering
the cool air mass in place we may still only reach 60f (or lower
60s) where clouds clear. Winds increasing late (after 06z) and
increasing cloud cover may limit radiational cooling potential
tonight, otherwise there may be potential for frost conditions in
northwest mn closer to surface high pressure.
Long term (Saturday through Thursday)
issued at 405 am cdt Fri sep 21 2018
12z Sat - 12z mon|
a short wave will rotate across ontario and send a cold front out of
canada Sat and stall over the central red river valley. Also some
mid level warm advection is expected later sat. Scattered showers
are expected over the northern valley.
An upper level trough over the northeast pacific will move east out
of the rockies Sun with more low level warm advection. Showalters go
negative late Sun afternoon into Sun night. Have threat for thunder.
Cold front moves across late sun.
Mon - thu
long wave pattern amplifies though the period with a long wave
trough over the northern plains.
Upper level trough moves over area Tue with instability precip
possible. Another short wave is expected to move through Wed with
wrap around precip for thu.
Aviation (for the 06z tafs through 06z Friday night)
issued at 1149 pm cdt Thu sep 20 2018
wet, windy, and MVFR to ifr conditions for much of the night.
Heavier rain is limited visibility to 3-5sm, and some mist and
drizzle has developed south of the main rain bands. Rain and
lowered ceilings and visibility will continue before tapering off
to vcsh towards morning. Some improvement toVFR can be expected
by mid-day. North winds gusting above 30 kts at times currently
will slowly decrease just a bit overnight, but still gust above 20
kts until after sunrise. Winds will diminish further by tomorrow
afternoon, and then shift to the south.
Fgf watches warnings advisories
Short term... Djr
long term... Jh
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