Wednesday, January19, 2022
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Marine Weather and Tides
Kanab, UT

Version 3.4
NOTICE
3/30/2021 -- ANZ330 has been split into ANZ331 and ANZ332. Click EDIT in Marine Forecast and select your new zone.
1/26/2021 -- The West Coast Satellite images havd been updated. They now use GEOS-17.
1/1/2021 -- The 7 day forecast are now working well. Thank you NOAA for your support.

Sunrise 7:42AMSunset 5:43PM Wednesday January 19, 2022 1:48 AM MST (08:48 UTC) Moonrise 7:26PMMoonset 9:06AM Illumination 97% Phase: Waning Gibbous; Moon at 17 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 182231 AFDSLC

Area Forecast Discussion National Weather Service Salt Lake City UT 331 PM MST Tue Jan 18 2022

SYNOPSIS. A light northwesterly flow will develop across the forecast area through midweek. The next storm system will cross the region Friday into Friday night.

SHORT TERM (Through 00Z Friday). Northwesterly flow aloft has become established across the Intermountain region this afternoon, as mid level ridging amplifies off the Pacific Coast. An upper low which had been spinning off the CA coast moved inland overnight, and is currently crossing the Four Corners area moving away from the forecast area. Valley inversions remain firmly entrenched across northern Utah, where areas of fog are once again expected overnight into Wednesday morning.

Inversions are expected to remain firmly in place through Thursday across northern Utah valleys, maintaining daytime haze along with overnight/morning fog. A pair of very subtle wave will bring cooling temperatures aloft Wednesday, lowering 700mb temps down into the -8 to -10C range. It's possible this cooling will help ventilate some of the stagnant airmasses, however with fairly light flow aloft and a weak pressure gradient, it's much more likely these inversions remain in place through Thursday.

LONG TERM (After 00Z Friday). A rapidly amplifying trough will dive in from the north, acquiring an increasingly positive tilt as it deepens. This will be a quick-hitting system that will only temporarily weaken the background Rex block, but should deliver modest accumulations to the northern through central mountains and drive a much needed mix-out for stagnant northern valley air. While model trends towards a deeper solution suggest the central and eastern valleys could see accumulating snowfall, confidence remains low at this time and near-zero QPFs in the grids reflect this.

Models are in good agreement now that precipitation will likely begin in the mountains late Thursday night with a tightening height gradient at the base of the trough and left exit region of the jet both moving in overhead. The highly positive tilt will allow for northwest flow on the leading edge of the trough to incorporate a reasonable amount of moisture from a decaying plume of high PWATs over the Pacific Northwest. Most northern valleys will see fairly limited accumulations from 0.1 to 0.2 in of water equivalent and 1 to 3 in of snow, producing little in the way of impacts. Mountain locations are expected to do considerably better with 0.5 to 0.75 in of water equivalent through Friday morning as the environmental conditions and moist northwest flow will maximize potential for orographic enhancement. H7 temperatures of -8 to -10C with very light winds in and below the DGZ will help boost snowfall totals as snow ratios are expected to push 12:1 in valleys and as high as 17:1 in the mountains.

Once the trough axis is through the region by Friday afternoon, the flow will quickly go north to northeast in its wake, shutting off precipitation for all valley and most mountain locations, perhaps lingering with light to no accumulations through the evening across the Uintas. The Rex block is poised to strengthen once again into the weekend. While it is not impossible for another weak trough to move through the block, there is little to no support in the ensemble forecasts for any sign of a pattern change through day 10 at this time.

AVIATION. KSLC . MVFR conditions will prevail through the valid TAF period because of haze limiting visibility. Expect values of 4-5 SM much of the period. Increasing mid and high clouds are expected, but dry conditions will continue. Light northwest flow will transition to the southeast between 03-04Z.

REST OF UTAH AND SOUTHWEST WYOMING . Conditions are borderline MVFR/VFR at KLGU with haze limiting visibility. Values will drop into MVFR range in the evening, with IFR or LIFR visibility expected into tomorrow morning. Other northern Utah valleys will decrease into MVFR range from haze. VFR conditions are expected for southwest Wyoming and the remainder of Utah. Increasing mid/high clouds are expected, but dry conditions will continue with light winds.

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

Seaman/Wessler/Cunningham

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

Link to 5 minute data for KPGA

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Last 24 hr0N4N4E3E300000SW3SW30000SW4000S3000
1 day agoN433NE3NE300SW3000W3W30000W3W4W300W30
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NOTE: This section has been updated as of 1/26/2021. If the image you are expecting is not showing, please let me know. You may use the EDIT function to update your location.
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