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 7:32AM||Sunset 5:14PM||Saturday December 7, 2019 5:55 PM MST (00:55 UTC)||Moonrise 2:49PM||Moonset 2:51AM||Illumination 84%|
7 Day Forecast for Marine Location Near Kanab, UTHourly EDIT Help
Area Discussion for - Salt Lake City, UT  (on/off)  Help NOTE: mouseover dotted underlined text for definition
FXUS65 KSLC 072301 AFDSLC
Area Forecast Discussion National Weather Service Salt Lake City UT 401 PM MST Sat Dec 7 2019
SYNOPSIS. Southwesterly flow will prevail today. The next storm system will impact the region late tonight through early Monday, with drier conditions returning early next week.
SHORT TERM (Through 00Z Wednesday). A filling upper level low is currently located near the California/Oregon line and will continue to weaken through today. A splitting trough will cross into the West and pick up the remnants of this low tonight. This trough will remain weak . with the base of the trough crossing into Arizona Sunday into Monday.
This is a rather disorganized system with limited forcing to account for any widespread and significant precipitation. The main mid-level front will cross the state tonight into late Sunday. This will likely be the heaviest band of precipitation for most locations. Unstable northwest flow should bring a period of orographically enhanced snow to the northwest favored slopes, especially the Cottonwood Canyons Sunday into early Monday.
Areas such as the Cache Valley and northern Wasatch Front Brigham City and north may see a rain/snow mix or even snow as early as late tonight as cold pools are fairly resistant in these areas. Any accumulation in these areas will be limited and will depend on higher precipitation rates. Most valley locations will see at least a period of light rain/snow or snow Sunday night into Monday but again impacts are expected to be minimal.
The best news with this system is mid-level cooling and valley mixing should be sufficient to break down the inversions that have been present over the last few days.
Given the potential for winter driving conditions/travel impacts for mountain passes, especially the Cottonwood Canyons, the Wasatch Plateau and the higher summits on I-15 near Cove Fort, issued a winter weather advisory for the mountains of Utah early Sunday into Monday. Western/northwestern facing slopes will have the best totals with this system.
Upper level ridging will build into the state behind this storm for the remainder of the short term forecast period.
LONG TERM (After 00Z Wednesday). A shortwave trough is still progged to undercut the strong ridge over the West Coast and track across the Great Basin as a splitting feature. The GFS and GEFS mean 500mb heights remain lower over Utah than the EC and EPS mean, and 700mb temperatures are colder as well. The deterministic GFS is also less splitty than the EC, taking the vort max associated with the southern split across Utah rather than just to the south. Although have left mentionable weather out of the forecast for this storm for now, the chance that the GFS solution with its slightly better dynamics and stronger cold advection could bring some very light precipitation to the area.
A near zonal or slight northwesterly flow aloft will settle into the area Thursday through the end of the week. Weak ripples embedded in the flow grazing northern Utah are expected to bring some precipitation to northern Utah during this time. Precipitation may begin as snow or a wintry mix with the initial round or precipitation, but the unsettled weather, increased flow, and nighttime cloud cover may work together to gradually weaken valley inversions over time.
A shortwave trough is then progged to approach the area at the end of the forecast period, pushing a cold front through the area.
AVIATION. Low-end VFR conditions at the SLC terminal will likely be reduced to IFR or LIFR after 00-02z. Conditions are then expected to gradually improve late tonight as the next storm system works its way into the area. There may be a return to MVFR or VFR conditions after 07-08z, but more likely this will not occur until after 10-12z as rain or a rain/snow mix begins to develop. Winds will be light northerly through early this evening, then switching to light south and gradually increasing overnight.
SLC WATCHES/WARNINGS/ADVISORIES. UT . Winter Weather Advisory from midnight tonight to 10 AM MST Monday for UTZ007>010-517.
Winter Weather Advisory from 5 AM Sunday to midnight MST Sunday night for UTZ518.
WY . None.
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 StationsEDIT (on/off)  Help NOTE: Click on distance to see the station location on a map
Airport ReportsEDIT (on/off)  Help Click EDIT to display multiple airports. Follow links for more data.
|Bryce Canyon Airport, UT||42 mi||63 min||SE 12||7.00 mi||Overcast||35°F||33°F||93%||1019.5 hPa|
Link to 5 minute data for KBCE
Wind History from BCE (wind in knots)
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|2 days ago||SE||S||S||SE||SE||SE||SE||SE||SE||SE||SE||SE||S||SE||NW||W||NW||W||W||W||W||W||W||W |
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GEOS Local Image of Southwest 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 Salt Lake City, UT (19,4,5,8)(on/off)  Help
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