Marine Weather and Tides
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
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 8:01AM||Sunset 4:37PM||Saturday December 7, 2019 5:56 AM CST (11:56 UTC)||Moonrise 2:42PM||Moonset 2:52AM||Illumination 80%|
7 Day Forecast for Marine Location Near Portland, NDHourly EDIT Help
Area Discussion for - Grand Forks, ND  (on/off)  Help NOTE: mouseover dotted underlined text for definition
FXUS63 KFGF 071007 AFDFGF
Area Forecast Discussion National Weather Service Grand Forks ND 407 AM CST Sat Dec 7 2019
SHORT TERM. (Today through Sunday) Issued at 331 AM CST Sat Dec 7 2019
Today.. Dense fog has spread into the Devils Lake basin as well as portions of the Sheyenne River Valley. Latest HRRR guidance suggests this will persist and perhaps spread into the western Red River Valley through 9 AM CST. Earlier freezing drizzle within the Red River Valley and northwest Minnesota looks to be waning, although still getting sporadic reports at KGFK and KPKD. A step outside of the office verifies a light mist still lingers. Still think freezing drizzle chances are decreasing, or rather advecting further east into northwest/north-central Minnesota. Despite this trend, lingering glaze of ice may remain through the morning on untreated surfaces and thus poses a hazard to transportation.
Focus then shifts to the chance for additional wintry mix this morning with freezing rain, sleet, and snow possible mainly north of the Highway 200 corridor capable of producing another glaze of ice and/or a dusting of snow/sleet. Current IR satellite imagery depicts an area of colder, higher cloud tops over southern SK and eastern MT moving east. This is associated with mid level lift/saturation of an upper jet max rounding the crest of a ridge. Responding near the surface is an area of low level WAA. Both synoptic forcing mechanisms lends credence into the CAM suite suggesting this wintry mix pass west to east across northern counties starting around 6 AM. It treks across the CWA before exiting around noon near LOW. While precipitation may be steady, it shouldn't linger over one location for more than 1 to 2 hours. Still, the chance of light icing may lead to slick conditions and thus continues a hazard to transportation.
Otherwise, today will be the last day of relatively mild temperatures with highs near freezing. However, a breeze out of the south and extensive cloud cover will make it feel cooler.
Tonight through Sunday.. A cold front moves through the area from the north overnight tonight bringing the chance for light snow, increased northerly winds, and dropping temperatures. There is a slight chance of brief freezing drizzle along the initial cold frontal passage. Some flurries may linger through the day Sunday. Increasing winds gusting to 30 mph behind the cold front may lead to patchy blowing snow, especially within the Red River Valley.
LONG TERM. (Sunday night through Friday) Issued at 331 AM CST Sat Dec 7 2019
Snow in our south and very cold temps will be the main impacts for the period.
Sunday night through Wednesday . The upper trough will be swinging through the Dakotas Sunday night, with the Arctic cold front pushing into our southern counties around the same time. Some of the deterministic runs show some mid level frontogenesis along with the synoptic lift Sunday night into Monday morning, indicating some potential for banding and thus have some higher QPF along the border with SD. The GEFS M-climate is not extreme for QPF, but does have some 90th percentiles approaching our southwestern counties. Continued the trend of bumping up QPF a bit along our southern counties, but will hold off on any advisory headlines for now. Of much greater certainty is the Arctic air that this system brings down, still looking to be the coldest of the season so far. The start of the work week will bring very cold temps with even highs struggling to get above zero. There is good consensus on a reinforcing shortwave dropping heights down even further on Tuesday. The high should be very near us on Tuesday night/Wednesday morning, and although much will depend on clouds, lows down into the teens to near twenty below zero will be possible. The surface high moves east and south winds will start to pick up during the day on Wednesday, but will probably not do much at that point except increase wind chill.
Thursday through Friday . The real warm up starts Thursday as flow becomes more zonal. The pattern also becomes more active, with several shortwaves coming through during the end of the week although deterministic model timing is all over the place. At this point a lot of snow seems unlikely with ensembles having pretty low probabilities of over 0.10" liquid. However, do think there will be some chances of light snow so will continue with the low POPs that the blend gives us.
AVIATION. (For the 06Z TAFS through 06Z Saturday night) Issued at 1149 PM CST Fri Dec 6 2019
Widespread IFR and MVFR ceilings with pockets of LIFR ceilings. There are pockets of light treeing drizzle across far northeast ND and northwest MN that have impacted KGFK and KTVF this evening, however how much longer this will be a threat is tough to say and I limited mention to the early TAF period. Fog has developed across western ND and is spreading east and this could overspread eastern ND and northwest MN by 12Z before lifting 18Z, and bring drops to LIFR vis (best chance at KDVL but not confident enough to prevail at this time). South winds 5-10kt should shift to the southwest ahead of the next approaching system that could bring light wintry precip Saturday-Saturday night. Cold front should arrive Saturday night with winds shifting back to the northwest.
FGF WATCHES/WARNINGS/ADVISORIES. ND . Dense Fog Advisory until 9 AM CST this morning for NDZ006-007- 014-015-024-026-028-029-038-054.
MN . None.
SHORT TERM . CJ LONG TERM . JR AVIATION . DJR
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|Grand Forks, Grand Forks International Airport, ND||33 mi||64 min||S 9||5.00 mi||Fog/Mist||25°F||23°F||92%||1017.4 hPa|
Link to 5 minute data for KGFK
Wind History from GFK (wind in knots)
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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.
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Wind Forecast for Grand Forks, ND (6,6,7,8)(on/off)  Help
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