Marine Weather and Tides
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.
|Sunrise 8:00AM||Sunset 4:59PM||Monday January 22, 2018 2:02 PM CST (20:02 UTC)||Moonrise 11:29AM||Moonset 11:41PM||Illumination 35%|
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Area Discussion for - Grand Forks, ND  (on/off)  Help NOTE: mouseover dotted underlined text for definition
|Fxus63 kfgf 221737|
area forecast discussion
national weather service grand forks nd
1137 am cst Mon jan 22 2018
Issued at 956 am cst Mon jan 22 2018
no changes to the forecast thoughts across our region for today.
Cloudy day with nearly steady temperatures and no impacts.
Short term (today and tonight)
issued at 356 am cst Mon jan 22 2018
upper level low pressure system was over ks and will affect areas
south of us. Split flow was over north america with southern
stream over the southern states and northern stream over southern
canada and the northern states. Ks upper level low will produce
north or northeast winds today and tonight across much of the red
river valley. Short wavelength upper ridge from mt to sask will
move into the the area this afternoon and tonight. Return flow
will occur over the devils lake basin and will shift into eastern
nd tonight. Low level convergent flow will occur over the area
today. Low level moist layer was relatively shallow and so will
leave flurries light freezing drizzle out of the forecast for
today and tonight.
Long term (Tuesday through Sunday)
issued at 356 am cst Mon jan 22 2018
500 mb short wave trough will move east-southeast into eastern nd
and northwestern minnesota Tuesday afternoon and evening. Initially
airmass is quite dry, but as it moves east there is increased
moisture near 850 mb. Thus there is a hint on most models of a
little light precip with this feature. It would appear to be more
flurries than anything and superblend gave sub 15 pops and after|
coord with abr bis left it that way and thus kept fcst dry. After
this system 500 mb ridge builds into montana and spreads east into
the northern plains Thursday as warmer air at 850 mb moves in. How
much is realized at the surface in terms of warming is questionable
due to anticipated clouds.
Main question in the long term is precip chances fri-sat as several
disorganized 500 mb short waves move northeast into the area and
then develop a better 500 mb trough in S manitoba NW ontario. Not a
lot of moisture available with this system and most of it is when
the 500 mb trough is stronger north of the international border.
Thus the low chance pops given by model blended solns appear
reasonable. Overall a light precipitation event.
Aviation (for the 18z tafs through 18z Tuesday afternoon)
issued at 1137 am cst Mon jan 22 2018
ifr MVFR CIGS will remain across the region through this forecast
period. North winds will gradually diminish this evening become
light and variable. CIGS should lower a bit during the overnight
period (although not sure how low). Probability for fog formation
is very low according to most guidance.
Fgf watches warnings advisories
short term... Jh
long term... Riddle
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Mon -- 04:26 AM AKST 11.13 feet High Tide
Mon -- 09:28 AM AKST Sunrise
Mon -- 10:24 AM AKST 3.08 feet Low Tide
Mon -- 11:19 AM AKST Moonrise
Mon -- 04:00 PM AKST 10.62 feet High Tide
Mon -- 04:28 PM AKST Sunset
Mon -- 10:37 PM AKST 1.03 feet Low Tide
Mon -- 11:43 PM AKST Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
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Wind Forecast for Grand Forks, ND (15,3,4,5)(on/off)  Help
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The information on this web site has not been checked for accuracy. It is for entertainment purposes only and should be independently verified before using for any other reason. There are five sources. 1) Documents and manuals from a variety of sources. These have not been checked for accuracy and in many cases have not even been read by anyone associated with L-36.com. I have no idea of they are useful or accurate, I leave that to the reader. 2) Articles others have written and submitted. If you have questions on these, please contact the author. 3) Articles that represent my personal opinions. These are intended to promote thought and for entertainment. These are not intended to be fact, they are my opinions. 4) Small programs that generate result presented on a web page. Like any computer program, these may and in some cases do have errors. Almost all of these also make simplifying assumptions so they are not totally accurate even if there are no errors. Please verify all results. 5) Weather information is from numerious of sources and is presented automatically. It is not checked for accuracy either by anyone at L-36.com or by the source which is typically the US Government. See the NOAA web site for their disclaimer. Finally, tide and current data on this site is from 2007 and 2008 data bases, which may contain even older data. Changes in harbors due to building or dredging change tides and currents and for that reason many of the locations presented are no longer supported by newer data bases. For example, there is very little tidal current data in newer data bases so current data is likely wrong to some extent. This data is NOT FOR NAVIGATION. See the XTide disclaimer for details. In addition, tide and current are influenced by storms, river flow, and other factors beyond the ability of any predictive program.