Monday, May20, 2019 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 6:17AMSunset 8:40PM Monday May 20, 2019 9:02 AM MDT (15:02 UTC) Moonrise 9:38PMMoonset 6:48AM Illumination 98% Phase: Waning Gibbous; Moon at 16 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 200952
afdslc
area forecast discussion
national weather service salt lake city ut
352 am mdt Mon may 20 2019

Synopsis
A cool and unsettled weather pattern will continue through the
remainder of the week and into the start of next week as a
persistent trough takes up residence over the western us.

Short term (through 6pm Thursday)
A splitting mid-level low continues to work its way across the
forecast area early this morning. GOES water vapor imagery shows
the dominate mid-level circulation moving east of las vegas, while
a secondary weaker circulation is spinning nearly stationary over
the west great salt lake dessert. Increased synoptic ascent over
southwestern utah ahead of the dominate mid-level circulation,
combined with steep lapse rates, is resulting in area of showers
with some embedded rumbles of thunder. This area of ascent will
work its way slowly northeastward today along the southern and
central mountains brining increased shower and embedded
thunderstorm coverage with diurnal heating into this afternoon.

Across northern utah, showers across the west dessert associated
with the weak secondary mid-level circulation will move
northeastward through the northern wasatch front this morning with
likely decreasing shower coverage by this afternoon. Outside of
these main areas of synoptic forcing, isolated to widely scattered
showers will develop along terrain, and remnant outflow or lake
breeze boundaries with diurnal heating under steep lapse rates
aloft. Temperatures today will remain 10-20 degrees below normal
under the cold pool aloft, ample cloud cover and scattered
showers.

Overall shower coverage will diminish tonight into early Tuesday
morning with the loss of surface heating and as the trough axis
departs to the west. Heights aloft subtly rise between the
departing storm system and the next one diving in from the
pacific northwest, bringing a brief relative lull in
precipitation across the forecast area.

The next trough dives into the great basin Tuesday to near las
vegas by Tuesday night before meandering slowly north-
northeastward across the forecast area through Thursday. This will
bring renewed scattered to numerous shower and isolated thunder
potential Tuesday through Thursday. The reinforcement of cooler
air with the trough will maintain temperatures 10-20 degrees below
normal.

Through this entire period, snow levels will fluctuate either side
of 7000 feet. Mountain snow accumulations are expected above this,
however no one period looks particularly impressive and impacts
over high elevation passes will remain negligible with the help
of the high may Sun angle.

Long term (after 6pm Thursday)
A shearing longwave trough will remain in place across the region
to begin the long term period, this driven by further ridge
amplification along 140w off the pac coast upstream, and
maintenance of mean ridge over the south-central conus. Kind of a
lull looks to form locally beginning Friday within this shear as
the parent short wave energy lifts northeast, while the remnant
stands pat to our southwest. The aforementioned trough will become
reinforced over the weekend as yet another short wave deepens
along its western periphery forming a new closed low over the
western CONUS leading into next week however. The location of this
low spin up will be key to the details in sensible weather
towards the end of the period, and have retained a heavy weight to
the ensemble solutions for the best go as a most probable outcome
this package.

Come Friday into Saturday have retained the greatest precip
potential over the far north northwest due to the shearing nature
trough (to our north and southwest) initially, and the beginning
stages of long wave reinforcement to the west into the weekend.

Ensemble guidance suggests the majority of the local area will
transition to a drier south southwest flow aloft, with any precip
driven more diurnal and showery in nature largely from remnant low
level moisture in place. Warming trend temps look
likely... Towards normal finally (beginning Saturday).

Thereafter the key will lie in the translation of the closed low
as it eventually fills and shifts east into the intermountain west
bringing another round of fairly widespread precip and below
normal temps. Guidance suggest the best bet is early next week
(beginning Monday). Stay tuned...

Aviation
Southerly winds are expected to prevail at the kslc terminal this
morning, with a switch to northwest between 17-19z. The bulk of
showers low CIGS are expected to remain just to the west and over
local terrain today, but a 60% chance exists for periodic rain
showers and cigs AOB 6000ft agl will occur late morning through
the afternoon.

Slc watches warnings advisories
Ut... None.

Wy... None.

Short term... Church
long term... Merrill
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


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Bryce Canyon Airport, UT42 mi70 minESE 94.00 miLight Snow Fog/Mist29°F28°F96%1003.3 hPa

Wind History from BCE (wind in knots)
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Last 24hrS12S22
G31
SE11SE9SE13SE12SE10SE7SE10SE12CalmCalmNE5W8NW4N5S6S4E10SE7NE6E3SE9SE7
1 day agoW10
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54NW5S8S83W7SW8SW6NE3SW4CalmSW3CalmSE6SE4SE8SE8S17
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2 days agoNW9NW16
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W12W9W13N8W15
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NW17NW9NW9N4N6NW8NW7W10NW9W6W7W5NW6NW11

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 (11,2,3,4)
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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.