Marine Weather and Tides
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
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.
|Sunrise 7:45AM||Sunset 5:28PM||Friday January 17, 2020 6:44 PM MST (01:44 UTC)||Moonrise 12:30AM||Moonset 12:12PM||Illumination 47%|
7 Day Forecast for Marine Location Near Samak, UTHourly EDIT Help
Area Discussion for - Salt Lake City, UT  (on/off)  Help NOTE: mouseover dotted underlined text for definition
FXUS65 KSLC 172245 AFDSLC
Area Forecast Discussion National Weather Service Salt Lake City UT 345 PM MST Fri Jan 17 2020
SYNOPSIS. Gusty winds tapering off late tonight. High pressure builds in through the weekend. The next weather system approaches next week.
SHORT TERM (Through 00z Tuesday). Conditions continue to improve and clear rapidly from west to east behind the departing cold front this afternoon. The going winter weather advisory will expire as expected this afternoon as snowfall accumulations wind down. As the storm unfolded early this morning, impacts to the morning commute were noted along the Wasatch Front from Brigham City to Utah county and worse conditions existed in the canyons of the Wasatch Mountains. Snowfall rates of 2 to 4 inches per hour were observed during the heaviest accumulation period, with impressive amounts in just a short few hours (some 13 inches in just 3-4 hours were observed). Winds remained gusty in the mountain areas as well. As the front continues to push southeast, gusty winds are persisting this afternoon in the Uinta Basin and locations in Castle Country. As winds trend down going into the evening hours, felt the wind advisory was safe to let expire.
Rising heights behind the departing trough will allow some cloud cover to filter in overnight. As some of the snow has melted and with the cloud cover, the thought of dense fog does not seem reasonable this evening. Some low stratus may develop in locked in valley locations, such as Cache or some of the mountain valley areas but confidence is not very high for this phenomena. This will be something to look into for Saturday night as thinner clouds and less high moisture seems more reasonable, although it depends if much of the ground snow melts under clear skies Saturday.
Through the weekend high pressure will result in quieter weather conditions keeping temperatures just above seasonal normal and winds trending lighter. The ridge will begin to weaken Monday with a trough moving into the Western CONUS.
LONG TERM (After 00z Tuesday). Ensemble means and cluster analysis continue to point to a trough passage locally Tuesday night through Wednesday, but significant spread continues regarding amplitude of the feature as it translates inland. EPS maintains a lower amplitude feature with signs of a splitting (weaker), while the GEFS maintains more amplitude indicating a more consolidated feature (stronger). These signals can be noted in their respective deterministic runs as well . with both models carrying run to run consistency. Bottom line, high confidence in some sort of trough passage within this window, but low confidence continues regarding the details and significance of it. Some snow to valley floors remains possible, as do modest mountain accumulations.
Thereafter the upstream pattern shows signatures of a split flow regime over the northern Pacific, with progressive but rather weak features translating into the western CONUS late week or into the weekend Not too notable, but semi-active. active enough to preclude significant inversion conditions in our valleys/basins.
AVIATION. VFR conditions will be maintained at the KSLC terminal through the valid TAF period, but lingering mountain obscuration of local terrain does look to remain in place through 02/03z this evening. Northwesterly winds will remain in place through roughly 03z before switching to the south for the overnight hours.
SLC WATCHES/WARNINGS/ADVISORIES. UT . None. WY . None.
SHORT TERM . Dewey LONG TERM/AVIATION . Merrill
For more information from NOAA's National Weather Service visit . http://weather.gov/saltlakecity
For frequently asked questions about the Area Forecast Discussion visit . http://weather.gov/saltlakecity/general/afd_faqs.php
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Link to 5 minute data for K36U
Wind History from 36U (wind in knots)
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|2 days ago||E||E||SE||E||NE||E||Calm||N||N|
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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.
Link to Loop
Other links: Northern Pacific Contential US Full GOES-East
Wind Forecast for Salt Lake City, UT (20,4,5,8)(on/off)  Help
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