Thursday, November15, 2018

Marine Weather and Tides
Kanab, UT

Version 3.4
What's New / NOTES
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.

Sunrise 7:11AMSunset 5:22PM Thursday November 15, 2018 1:45 PM MST (20:45 UTC) Moonrise 1:33PMMoonset 12:00AM Illumination 53% Phase: First Quarter Moon; Moon at 8 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 Kanab, UT
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location: 37.11, -112.22     debug

Area Discussion for - Salt Lake City, UT
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Fxus65 kslc 151554
area forecast discussion
national weather service salt lake city ut
854 am mst Thu nov 15 2018

High pressure will bring dry weather through the remainder of the
week, with temperatures peaking slightly above average on Friday.

A weak cold front will cross the region Saturday with a chance of
mountain snow showers and slightly cooler air to start next week.

Potential impacts...

* deteriorating air quality through tomorrow
* enhanced canyon winds possible Saturday night and Sunday
morning outlying washington county
antecedent conditions...

exceptional drought is occurring near the four corners, with
extreme drought across weber county, uinta basin, and most areas
southeast of provo. The remainder of the state is under severe
drought, with exception of southwest utah and near the wyoming
border which is under moderate drought.

Big picture...

during the past 5 days, the pattern across the pacific has been
amplified but somewhat progressive. The eastern pacific ridge
briefly broke down, only to re-amplify of late.

Mdcars 400mb-200mb aircraft observations reveal a 90-135kt
cyclonic jet over the gulf of alaska becomes anticyclonic over the
eastern pacific into southwest canada.

Local observations...

12z kslc RAOB shows a dry and stable profile, with several
subsidence inversions below 500mb and a strong nocturnal inversion
in place. Winds were fairly uniform out of the northwest.

Precipitable water values range from 0.10"-0.20" mountains to
0.25"-0.33" valleys.

An expansive 1028mb surface anticyclone dominates the eastern
pacific, pacific northwest, northern rockies and the eastern
great basin. A surface trough is located from southern california
into southern arizona. This is supporting a 4mb northerly pressure
gradient across utah.

24 hour trends:
* precipitable water values are little changed
* temperatures are little changed
* rh values are 10-20% higher valleys, 15-30% lower mountains

a storm system sliding southeast into the upper plains will have
little effect on our sensible weather. With high pressure
continuing to dominate, inverted conditions will continue to
persist. Air quality is expected to continue to deteriorate
through tomorrow.

It looks like a cold front will scour out the haze Saturday, per
fv3 bufkit forecast soundings.

No changes to the forecast, other than to update the hourly t rh
curve based on the latest model data and observations.

Previous discussion
Early this morning GOES 16 imagery shows hardly a cloud in the
sky across utah, save for a few high thin cirrus clouds passing
overhead at times. The clear conditions and light winds are making
for a another crisp morning with temperatures across the region
largely in the 20 and 30s.

This quiescent weather pattern will continue today and Friday as
a mid-level ridge axis over the great basin slowly weakens with
time. Continued airmass modification will result in high
temperatures today running a couple of degrees warmer than
yesterday and right near normal for this time of year.

Temperatures will peak on Friday, despite the mid-level ridge
being eroded by the impending wave for Saturday, as the subsidence
inversion weakens and allows for some better daytime mixing.

By Saturday, upstream amplification of the west coast ridge will
buckle the pacific jet sending a weakening shearing shortwave
southward across northeast utah southwest wyoming. The poor
dynamics and lack of moisture with this wave will result in little
sensible impact for much of the forecast area other than some
mountain snow showers for the northern wasatch and uintas, for
which some minor accumulations are possible. Cooler temperatures
will follow behind the wave passage for Sunday, however highs will
still top out just a few degrees below normal.

The amplified ridge taking shape over the great basin will
quickly break down, as forecast models have a quick moving trough
feature that will scoot through the desert southwest by Tuesday.

Models do have a tough time coming into agreement Wednesday and
beyond with another trough or slowing this trough down. Looking
farther upstream, a deepening trough dipping down from the gulf of
alaska begins to amplify the pattern in one model solution while
another begins to split the pattern flow which will result in less
precipitation chances for utah. That being said, with this
forecast package did not make many changes to the going forecast
with low confidence in any solution coming to light.

Temperatures will be on the mild side through the holiday period of
the extended forecast. The best chance for mountain snow (at this
time) looks to be a very weak chance Thursday and then better (more
agreement) chances by early Saturday. Again, this is 8-9 days out in

Light southeast surface winds currently in place are expected to
become light and variable during the 17-19z window today.

Thereafter a prevailing northwesterly surface wind will prevail
through the evening hours. AlthoughVFR conditions will be
maintained, slantwise visibility reductions are likely during low
sun angle periods.

Slc watches warnings advisories
Ut... None.

Wy... None.

Public... 10 church dewey
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

http: weather.Gov saltlakecity general afd_faqs.Php

Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Bryce Canyon Airport, UT42 mi52 minS 510.00 miFair52°F12°F21%1021.7 hPa

Wind History from BCE (wind in knots)
Last 24hrSE8SE9SE8SE6SW3W6SW5W7W6W7W7W5W9W9W9W7W10W9W6W6CalmNE5NE5S5
1 day agoSE8SE8SE9SE7CalmW6SW4SW4W7W8W6W7W8W6W9W7W7W9W5W3NE4N33S5
2 days agoN7

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 Salt Lake City, UT (15,3,4,5)
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Ground Weather Radar Station Cedar 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 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 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.