Thursday, December5, 2019
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Marine Weather and Tides
Stansbury Park, UT

Version 3.4
NOTICE
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 7:35AMSunset 5:02PM Thursday December 5, 2019 12:16 PM MST (19:16 UTC) Moonrise 1:58PMMoonset 12:55AM Illumination 64% Phase: Waxing Gibbous; Moon at 9 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 Stansbury Park, UT
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location: 40.78, -112.29     debug


Area Discussion for - Salt Lake City, UT
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FXUS65 KSLC 051656 AFDSLC

Area Forecast Discussion National Weather Service Salt Lake City UT 956 AM MST Thu Dec 5 2019

SYNOPSIS. A low pressure system will continue to shift east of the area through midday today. High pressure aloft will follow this storm for the late in the week, with the next storm system impacting the region during the upcoming weekend.

DISCUSSION. Morning satellite and H5 analysis indicate the trough that has been translating east across the area has opened over the last few hours while rapidly shifting over western Colorado. The remnants of an occluded front within the northern periphery of this low has weakened while also shifting downstream, with warming cloud tops and building height trends noted and indicative of rapid stabilization across the local area.

Quite the mixed bag of light precip this morning, with largely snow north of KOGD and across the west deserts, mixed freezing rain and snow across the northern Wasatch Front, and largely rain below 6kft for the central and southern portions. As mentioned, precip has been rapidly waning areawide, with clearing skies across the south where height rises have been most notable.

The 12z KSLC RAOB continues to indicate inversion conditions persisting through roughly H8, with significant moistening of the column due to the latest round of precip. Over the next 24 hours heights will continue to build as a short wave ridge shifts over the area, with H7 temps jumping back towards 0C from roughly -6C where they sit now. Expecting maintenance and even expansion of stratus and largely diurnally driven fog for most valleys/basins (including the KSLC metro area) as this low level cap strengthens. Poor air quality will remain along the Wasatch Front.

Moving forward the near term forecast remains on track from an earlier update several hours ago. No further updates anticipated at this time.

PREVIOUS DISCUSSION. A progressive but weakening mid level trough will move into the region over the weekend. As a result have maintained fairly high PoPs for the northern mountains and adjacent valleys during the upcoming weekend with valley rain/snow and mountain snowfall expected.

Long range models, both deterministic and ensembles, have a handle on the trough sliding through the Great Basin late in the weekend. Differences in exact strength of the front are very evident. One set of guidance wants to keep a more northern track while the other set splits and stretches the trough through northern Mexico. Regardless, northwest flow associated with the cold frontal passage will usher in a cold airmass which should help to scoop out some of the valley inversions.

Initially -6C to -7C at 700mb late Sunday will then continue to cool into the overnight hours Sunday night to near -10C by Monday. This storm system should bring some relief to poor air quality and valley inversion conditions along the Wasatch Front and West Deserts through late Monday. Sharp amplification of high pressure behind this trough will once again mostly likely secure valley inversion conditions across northern Utah as we head into mid-week (with 700mb temperatures back up to -2C).

AVIATION. Light northerly flow will switch to a light southerly flow at the SLC terminal between 02z and 03z. IFR and LIFR conditions will continue over the SLC terminal through ~12z. A slow improvement to MVFR conditions is expected between 14z and 15z, with a 30 percent chance of VFR conditions returning to the terminal by 18z.

SLC WATCHES/WARNINGS/ADVISORIES. UT . None. WY . None.

DISCUSSION/AVIATION . Merrill/Woodward PREVIOUS DISCUSSION . Seaman/Dewey

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


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Salt Lake City, Salt Lake City International Airport, UT17 mi22 minN 02.00 miLight Rain Fog/Mist35°F34°F96%1022.2 hPa

Link to 5 minute data for KSLC

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Last 24hrNW5N3N4W3NW4NW5N5CalmS3CalmCalmCalmCalmN5N6NW6NW4W4CalmN4N4CalmCalmCalm
1 day agoNW3NW4NW7NW5W5N4N4NW3CalmW3CalmCalmCalmSE3CalmE3CalmN3CalmCalmN3N3N5NW5
2 days agoNW4NW5N4NW7NW5N5NE3CalmCalmCalmN4N4NW4S3N3CalmCalmCalmCalmN3CalmNW3N6N4

Tide / Current Tables for
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Tide / Current Tables for
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Weather Map
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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 (14,3,4,5)
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Ground Weather Radar Station Salt Lake City, UT
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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.