Friday, August23, 2019 L-36.com


Marine Weather and Tides
Portland, ND

Version 3.4
NOTICE
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 6:32AMSunset 8:29PM Friday August 23, 2019 6:28 AM CDT (11:28 UTC) Moonrise 11:23PMMoonset 1:46PM Illumination 46% Phase: Third Quarter Moon; Moon at 23 days in cycle
NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.
Marine Forecasts
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7 Day Forecast for Marine Location Near Portland, ND
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location: 47.5, -97.37     debug


Area Discussion for - Grand Forks, ND
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Fxus63 kfgf 230900
afdfgf
area forecast discussion
national weather service grand forks nd
400 am cdt Fri aug 23 2019

Short term (today through Saturday)
issued at 400 am cdt Fri aug 23 2019
timing of the precip moving into the area will be the primary
forecast issue for the period.

Water vapor loop shows blocking ridge over the region with some
pretty dry air over mn. The surface high has moved east and most
of our low level winds are currently southeasterly. Continues to
also be dry and low levels with dew points in the upper 40s and
50s, although some high clouds are starting to move into our far
western counties. This pattern will not change too much during the
day today, with only slightly higher dew points expected as the
moisture plume seems to be taking the scenic route and is still to
the west. Breezy southeast winds should mix us well and we should
get into the upper 70s even with some more cloud cover today. A
few of the cams bring some stray showers storms into north central
nd and could graze our far northwestern counties as they move
into canada. Have some very low pops for this afternoon and night
in case of this scenario, but think that much of the activity will
stay west of our area. Southeast winds tonight along with
increasing dew points will keep lows in the 50s to low 60s.

Tomorrow, the surface pattern will not change too much with
continued southeast winds, but the upper trough begins to move
into the plains. Moisture will finally be increasing, and the
chances for showers and thunderstorms will finally begin to shift
into the devils lake basin and then the rest of eastern nd along
with far western mn. Mu CAPE will be around 1000-1500 j kg across
the northwestern counties by tomorrow afternoon, although deep
layer bulk shear is pretty unimpressive at 20 kts or less. Still,
cannot rule out a storm pulsing up Saturday afternoon or evening
over our western counties, so will continue to message
marginal isolated risk.

Long term (Saturday night through Thursday)
issued at 400 am cdt Fri aug 23 2019
00z Sun - 12z mon
a fair amount of precip is forecast through much of the period.

Precipitable water rises to over 1.5 inches by 12z Sun and decreases
by Mon morning. Models do marginally support warm rain processes
from 12z Sun through 06z mon.

Mon - thu
gfs and ECMWF are in good agreement through 84 hours. Timing of
short waves through the flow vary between models and more so with
time. Upper level low pressure system slowly moves across southern
canada through the period. The heavier precip begin to exit the
eastern zones on mon. Northwest flow aloft is expected Tue and
thereafter.

Aviation (for the 06z tafs through 06z Friday night)
issued at 1137 pm cdt Thu aug 22 2019
vfr thru 12z fri. Then will need to watch lower endVFR clouds
move up from the south 12z-15z period west of the red river
valley. These should likely impact dvl for much of the day with
ceilings in the 4000-6000 ft agl range. Otherwise expect high
clouds patchy mid cloud gfk far and not much cloud cover east as
little to no CU expected bji area.

Southeast winds will increase to 15-28 kts in dvl Friday
midday aftn and also increase into that 12-25kt range gfk far
Friday aftn.

Fgf watches warnings advisories
Nd... None.

Mn... None.

Short term... Jr
long term... Jh
aviation... Riddle


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Grand Forks, Grand Forks International Airport, ND33 mi96 minSE 810.00 miA Few Clouds52°F48°F86%1019.7 hPa

Link to 5 minute data for KGFK

Wind History from GFK (wind in knots)
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Last 24hrW4NW4CalmCalm5SE7S55E5E6E8E8--SE5------SE8--S5--SE5SE8SE7
1 day agoNW4----N7NE6CalmW4NW7--N5N9NE8NE7E6NE7--E4Calm--W4N4--N3NW4
2 days agoN15
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N16N15N14N16N14
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----NW8NW8W3W6----------W6--W6NW4

Tide / Current Tables for
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Tide / Current Tables for
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Weather Map and Satellite Images
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GOES Local Image of    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 Grand Forks, ND (7,2,3,4)
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Ground Weather Radar Station Fargo, ND
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Disclaimer:
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.