Marine Weather and Tides
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.
|Sunrise 7:56AM||Sunset 8:12PM||Thursday March 21, 2019 11:48 AM EDT (15:48 UTC)||Moonrise 8:10PM||Moonset 7:45AM||Illumination 100%|
7 Day Forecast for Marine Location Near Grand Marais city, MNHourly EDIT Help
Area Discussion for - Duluth, MN  (on/off)  Help NOTE: mouseover dotted underlined text for definition
|Fxus63 kdlh 211146 aaa|
area forecast discussion... Updated
national weather service duluth mn
646 am cdt Thu mar 21 2019
Issued at 640 am cdt Thu mar 21 2019
updated below for 12z aviation discussion.
Short term (today through Friday)
issued at 411 am cdt Thu mar 21 2019
surface and upper level ridging covered the forecast area at 0730z.
Plenty of clouds were found over the eastern two thirds of the area
in response to departing upper level energy. Expect these clouds to
move off to the east dissipate later this morning allowing for a
brief window for a mostly sunny sky. However, by late morning and
into the afternoon, expect a scattered to broken cumulus field to
develop and affect much of the region. This is in response to a weak
cold front pushing through the area. A majority of the short term
hires models, as well as the deterministic models keep the area dry
and will follow the majority and have no precipitation.
A second front moves through the eastern third of the area tonight.
There is a bit better agreement on moisture availability, as well as
forcing, to generate a few rain snow showers in the early evening
over the arrowhead, and a portion of northwest wisconsin through the
overnight. No accumulations are expected. Friday finds high pressure
settling over the region.
Long term (Friday night through Wednesday)
issued at 411 am cdt Thu mar 21 2019
the focus for the long term remains on a system that moves through
on Sunday bringing rain snow chances and cooler temperatures to
start the new week.
High pressure will be in place across the northland to start the
long term Friday night. This high will drift to the southeast on
Saturday, allowing winds to shift to the west-southwest and usher in
warmest air seen in months. Highs Saturday will be in the upper 40s
and lower 50s, with the warmest readings being seen from koochiching
county eastward into northern lake and cook counties.
Heading into Saturday night, a cold front associated with an area of
low pressure over northern quebec will approach the northland from
the north, while another area of low pressure begins to organize
across the central plains. With the 21.00 suite of guidance, models
are beginning to converge on a solution that will bring a bit of rain
and snow to the northland. A few rain snow showers will be possible
along the international border Saturday night Sunday morning as the
cold front begins to move in. Soundings in this area show a change|
from rain to snow overnight and then back to rain in the morning. As
such, have kept any freezing precipitation out of the forecast at
this time. Rain showers will then be possible on Sunday as moisture
from the southern system interacts with the cold front moving
through the northland. Colder air will be moving in behind the front
and will change the rain over to snow late Sunday afternoon into
Sunday evening before precipitation ends early Monday morning. The
gfs remains the wettest of the gfs ECMWF canadian, but the ECMWF and
canadian are both starting to phase the northern and southern
systems like the GFS has been doing the past few days. The GFS is
most likely overdoing the precipitation, but a mix of all three help
to dampen that. Highs Sunday will range from the upper 30s to middle
40s, but these may be reached earlier in the day depending on the
timing of the cold front.
High pressure will then bring dry conditions to the northland for
Monday and Tuesday before a weak system brings a chance for a few
rain showers on Wednesday. Monday looks to be the coolest day of the
period with high in the 30s before warming back into the 40s and
lower 50s by Wednesday.
Aviation (for the 12z tafs through 12z Friday morning)
issued at 646 am cdt Thu mar 21 2019
vfr conditions are expected through the TAF period. There is the
potential for some MVFR ceilings late this morning and into the
early afternoon hours if some stratocumulus clouds are able to
develop. If they do, ceilings will return toVFR by mid to late
afternoon, but these chances seem low. Winds will be breezy today
from the northwest at 10 to 20 knots with a few gusts to near 25
knots late this morning and early afternoon. Winds will then
diminish this evening and become light overnight.
Preliminary point temps pops
Dlh 44 24 38 21 0 0 0 0
inl 44 21 38 17 0 0 0 0
brd 45 23 41 19 0 0 0 0
hyr 46 23 38 14 0 0 0 0
asx 46 25 36 19 0 0 0 0
Dlh watches warnings advisories
short term... Gsf
long term... Bjh
Weather Reporting StationsEDIT (on/off)  Help NOTE: Click on distance to see the station location on a map
|Stations||Dist||Age||Wind||Air Temp||Water Temp||Waves||Pressure||DewPt|
|KGNA||26 mi||53 min||WSW 8.9||35°F||1012.6 hPa||30°F|
|GD5 - 9099090 - Grand Marais, MN||26 mi||49 min||36°F||1011.5 hPa (-2.9)||33°F|
|ROAM4 - Rock of Ages, MI||30 mi||49 min||WSW 24 G 26||38°F||1012.9 hPa (-3.2)|
|DISW3 - Devils Island, WI||71 mi||49 min||WSW 19 G 24||36°F||1014.1 hPa (-2.7)||28°F|
Airport ReportsEDIT (on/off)  Help Click EDIT to display multiple airports
|Grand Marais/Cook County Airport, MN||27 mi||73 min||WSW 7 G 14||10.00 mi||Fair||37°F||24°F||60%||1010.2 hPa|
Wind History from CKC (wind in knots)
|1 day ago||S||S||S||S||SW|
|2 days ago||W||W||Calm||S||S||S||S||S||Calm||Calm||Calm||Calm||Calm||Calm||Calm||Calm||W||W||Calm||Calm||Calm||Calm||S||SW |
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Weather Map and Satellite Images(on/off)  HelpWeather Map
GOES Local Image of GreatLakes EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
Link to Loop
Other links: Northern Pacific Contential US Full GOES-East
Wind Forecast for Duluth, MN (11,2,3,4)(on/off)  Help
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