Tuesday, November20, 2018 L-36.com


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 7:17AMSunset 5:19PM Tuesday November 20, 2018 6:56 AM MST (13:56 UTC) Moonrise 4:07PMMoonset 4:16AM Illumination 94% Phase: Waxing Gibbous; Moon at 12 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 201209
afdslc
area forecast discussion
national weather service salt lake city ut
509 am mst Tue nov 20 2018

Synopsis High pressure aloft will give way to an upper level
trough scheduled to cross the state Thursday. A second trough will
move into the region from the northwest late Friday through Saturday.

High pressure aloft will briefly return for late in the weekend.

Short term (through 12z Friday) An upper ridge remains centered
over the great basin this morning leading to dry and stable
conditions across the forecast area. Across southwest utah, a thin
veil of high clouds have spread into the area as a weakening trough
undercuts the ridge and makes its way onshore across northwest
mexico. This trough will have little to no impact on the forecast
area other than the clouds.

With the stable airmass in place, valley inversions will linger, and
urban haze will continue to gradually increase today. Max
temperatures in the valleys are expected to warm little from
yesterday's readings and remain near climatological normals.

The ridge axis will shift east tomorrow, allowing southwesterly flow
aloft to increase across the area. However, these winds may not be
realized in the lower valleys with a weak mslp gradient through the
afternoon. As a result, the valleys will likely fail to mix fully.

However, valley winds and associated mixing should increase tomorrow
night ahead of an approaching trough.

The trough, which will be coming in from the west, will be
associated with a relatively mild and moist airmass. As a result,
widespread measurable precipitation is expected from this storm as
it crosses the area late tomorrow night through Thursday evening,
with the bulk of the precipitation associated with the midlevel
baroclinic zone Thursday morning through afternoon. Because of the
aforementioned mixing occurring ahead of the storm along with the
mild airmass, snow levels are expected to generally remain above
valley floors. However, some of the colder valleys which might not
mix as well, such as the cache valley and west deserts, could see
snow initially. In addition, with h7 temperatures falling to around
-7c with precipitation, pockets of heavier precipitation could also
bring snow levels down locally at times. Otherwise, expect mountains
and higher valleys to see accumulating snow.

After some lingering, mostly orographic, precipitation winds down
Thursday evening, midlevel warm advection is expected to develop
during the night. The GFS is still more aggressive with the strength
of the warm advection compared to the ec during the overnight hours,
as the ec prefers to wait until Friday to get more excited.

Regardless, at some point Thursday night or Friday morning,
precipitation will increase across the north, keeping an active and
wet weather pattern in place.

Long term (after 12z Friday) By Friday morning the thanksgiving
trough will have exited the area to the east, but moist warm
advection will allow for precip to re-develop over primarily
northern portions of the forecast area during the day. Snow levels
will rise noticeably during the afternoon to at least 6500 feet for
most locations, but accumulations above that level could be decent.

A colder pacific northwest storm system is expected to make its way
through the area Friday night through Saturday night. Models are
overall in better agreement compared to this time yesterday, with
the GFS having moved to the stronger and colder ec solution. 700 mb
temps in the -10c to -14c range would easily drop snow levels down
to northern utah valley floors with the passage of the front
Saturday morning, and lingering cold pool instability could allow
for some significant totals. A more stable northwest flow is progged
to develop behind the exiting system beginning Sunday, though a few
showers may still be possible over the higher terrain of northern
utah into Monday.

Aviation The slc terminal will seeVFR conditions and clear skies
through the morning. Southeast winds are expected to shift to the
northwest between 17z and 19z.

Slc watches warnings advisories
Ut... Hard freeze warning until 9 am mst this morning for utz019.

Wy... None.

Cheng traphagan
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
Bryce Canyon Airport, UT42 mi63 minWSW 510.00 miFair6°F-2°F69%1027.6 hPa

Wind History from BCE (wind in knots)
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Last 24hrW6W8W5CalmCalm3SE8SE10SE10SE11SE7SW3SW4W6SW4W5W4W5W4W5W3W4W4W5
1 day agoN3NW7NE6NE74NE9NW5Calm4NW6NW5CalmW5SW3W8NW4W7W8W8W7W9W8W9W9
2 days agoNW3W5W5SW4W6W8NW10W9
G20
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NW16NW13NW10NW10NW6W6W9CalmNW3CalmW7SW6NW7NW7W9

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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wmap_P
GOES 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 (8,2,3,4)
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Ground Weather Radar Station Cedar City, UT
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Disclaimer:
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.