|
Marine Weather and Tides
Version 3.4 |
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed. 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. |
| Sunrise 7:42AM | Sunset 5:44PM | Tuesday January 21, 2020 8:08 AM MST (15:08 UTC) | Moonrise 4:58AM | Moonset 2:56PM | Illumination 13% |  |
7 Day Forecast for Marine Location Near Kanab, UT
Hourly EDIT Helplocation: 37.11, -112.22 debug
Area Discussion for - Salt Lake City, UT
(on/off) Help NOTE: mouseover dotted underlined text for definitionFXUS65 KSLC 211127 AFDSLC
Area Forecast Discussion National Weather Service Salt Lake City UT 427 AM MST Tue Jan 21 2020
SYNOPSIS. A couple of weak weather systems will pass through the region through Wednesday. High pressure will return late in the week.
SHORT TERM (Through 00Z Saturday). A pair of shortwave troughs will impact the forecast area over the next 36 hours. The lead shortwave is currently lifting through the lower Colorado River valley, while an upstream wave is making landfall along the Pacific Northwest coast.
The lead wave will continue on an east-northeast trajectory this morning. Large scale ascent, albeit weak, ahead of this wave has overspread southern and central UT early this morning, as noted by cooling cloud tops in IR imagery and an increase in radar returns across the area. A dry sub-cloud layer is keeping this precipitation from reaching the surface across the valleys as the column slowly saturates from the top down, however higher elevations across central and southern Utah are likely seeing periods of light snow. This will continue through the morning hours with scattered precipitation eventually reaching the valley floors before large scale forcing shifts east this afternoon. As such have maintained chance PoPs across the valleys of central and southern UT and likely PoPs in the higher terrain. The southern/central Wasatch Front remains on the northern fringe and have included only slight chance PoPs across these areas.
A brief break in precipitation is expected later this afternoon into this evening, before the second shortwave brushes by northern Utah overnight into Wednesday morning. The bulk of the upper forcing and cold air aloft will pass north of the forecast area, however sufficient lift should bring a round of mountain snowfall to northern Utah with a few inches of accumulation expected. Valleys can expect a rain/snow mix along the Wasatch Front, with snow expected in the Cache and other northern valleys where cold air remains entrenched. These locations may see an inch or two of accumulation while the Wasatch Front should see little if any.
In the wake of this second wave, mid level heights are expected to gradually rise through the remainder of the week as ridging amplifies upstream beginning Wednesday, then builds eastward through the remainder of the week. This may allow valley inversions to redevelop with a gradual increase in urban haze Thursday into Friday.
LONG TERM (After 00Z Saturday). A brief redevelopment of the 500mb ridge is expected to occur over the weekend, however, significant valley inversions will likely not be able to develop as this feature should slide eastward rather quickly. Afterwards, a trough will begin to move inland over the western U.S. by Sunday evening, allowing for a period of enhanced southwesterly flow aloft. This period of enhanced southwesterly flow will act to increase surface temperatures and raise snow levels as we head into our next shot of precipitation across the forecast area.
Confidence for widespread precipitation along the mountainous terrain is continually increasing as successive model runs (both ensemble and deterministic) depict a very similar scenario. However, there still remains some discrepancy over the mean amplitude of the trough between the EPS and GEFS. At this time the GEFS solution supports a less amplified trough as compared to that of the EPS which suggests a cutoff system near the four corners region. In the deterministic realm, the GFS translates this less amplified trough to a round of enhanced precipitation across northern Utah with little emphasis on the southern portions of the state. In contrast, the ECMWF supports a round of enhanced precipitation to the north, but also favors a round of heavier precipitation across southern Utah as the system becomes cutoff over the four corners region. In any case, confidence for precipitation across northern Utah/ southwestern Wyoming is continually increasing while the solution for southern Utah remains up in the air.
AVIATION. Generally light southerly flow with periods of northerly flow will persist at the SLC terminal through ~20-21Z before becoming northwesterly. CIGs are expected to lower to around 5,000-6,000ft AGL around 12Z, and then again to around 3,000-4,000ft AGL by 03Z. VFR conditions are expected to prevail at the SLC terminal before deteriorating to MVFR by 03-04Z with the arrival of snow showers.
SLC WATCHES/WARNINGS/ADVISORIES. UT . None. WY . None.
Seaman/Webber
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
EDIT (on/off) Help NOTE: Click on distance to see the station location on a mapAirport Reports
EDIT (on/off) Help Click EDIT to display multiple airports. Follow links for more data.| Airport | Dist | Age | Wind kt | Visibility | Sky/Weather | Temp | DewPt | Humidity | Pressure |
| Bryce Canyon Airport, UT | 42 mi | 16 min | N 0 | 2.50 mi | Light Snow Fog/Mist | 26°F | 23°F | 88% | 1016.6 hPa |
Link to 5 minute data for KBCE
Wind History from BCE (wind in knots)
| 9 AM | 10 AM | 11 AM | 12 PM | 1 PM | 2 PM | 3 PM | 4 PM | 5 PM | 6 PM | 7 PM | 8 PM | 9 PM | 10 PM | 11 PM | 12 AM | 1 AM | 2 AM | 3 AM | 4 AM | 5 AM | 6 AM | 7 AM | 8 AM | |
| Last 24hr | Calm | NE | SE | E | S | S | S | S | SE | N | SE | SW | S | NW | Calm | S | SE | SE | SE | SE | SE | S | Calm | |
| 1 day ago | W | W | W | NW | N | Calm | Calm | Calm | Calm | SW | SW | W | W | W | W | W | Calm | SW | W | SW | Calm | Calm | Calm | W |
| 2 days ago | W | Calm | N | NE | Calm | SE | SE | Calm | SW | W | Calm | W | W | W | W | W | W | W | W | W | W | W |
Tide / Current Tables for
EDIT Weekend mode (on/off) (on/off) HelpTide / Current Tables for
EDIT (on/off) HelpWeather Map
(on/off) Help Weather Map
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 (10,2,3,4)
(on/off) Help
Ground Weather Radar Station Cedar City, UT
(on/off) Help
Ad by Google
|
Cookie Policy: This website uses cookies to save your settings. No personal information is saved. I do not collect statistics on your visit. You can disable cookies in your browser if you like but it is not recommended for this site. I do not sell cookies. Go to a bakery for that. In fact I do not sell anything. To disable cookies from L-36.com, please refer to the Help button in your browser. Privacy Policy: I do not sell or share any user data or anything else for that matter. The only personal information I save is in the site log which has a line for each page view which includes the IP address your browser sends in the header as well as which page you requested. I use this to block hackers and other bad actors. I do not use this raw data to create profiles on users. I periodically delete the log files. If you are subject to CCPA, Google ads on this site will not be based on your past behavior so you will likely not see an ad for a lawn mower just because you looked for one at a big box website. I do not believe this site is subject to CCPA but I am doing what I can to follow the guidelines anyway. 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 numerous 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. |