Saturday, May30, 2020
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Marine Weather and Tides
Cherry Creek, CO

Version 3.4
NOTICE
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 5:32AMSunset 8:21PM Saturday May 30, 2020 5:40 PM MDT (23:40 UTC) Moonrise 1:20PMMoonset 2:06AM Illumination 64% Phase: Waxing Gibbous; Moon at 9 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 Cherry Creek, CO
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location: 39.64, -104.86     debug


Area Discussion for - Denver/Boulder, CO
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FXUS65 KBOU 302046 AFDBOU

Area Forecast Discussion National Weather Service Denver/Boulder CO 246 PM MDT Sat May 30 2020

SHORT TERM. (This evening through Sunday) Issued at 229 PM MDT Sat May 30 2020

Current satellite imagery shows storms continuing to build over the higher terrain with west winds bringing them over the foothills and into the western portions of the plains. Current ACARS soundings are continuing to show a CAP over a large portion of the plains with a break temperature well above what we will be able to see today. However, CAMS continue to show gusty outflow winds with storms to the west that will allow a trigger for development later this evening. Model guidance puts a line of storms moving across the metro area after 6 pm with slightly better storm motions. Even with slightly higher mean wind storms could still produce heavy rain with some flooding possible over low-lying areas and city streets. In addition to the heavy rain, lightning and gusty winds from 30 to 40 mph will be possible. Some isolated storms could be severe with hail up to 1 inch and wind gusts of 60 mph. Storms will progress eastward through the early evening hours reaching more moisture rich air and slightly more stability. This will help to diminish any severe threat but will continue to have moderate to heavy rain possible across portions of eastern Adams, Arapahoe, Elbert and into Lincoln county through midnight.

For Sunday, an upper level trough will push through in the morning with increasing southwesterly to westerly flow behind it. This will dry out the low levels with model soundings showing inverted-V signatures nearing 500 mb and DCAPE values above 1000 J/kg. CAM output has been fairly consistent with diurnal convection starting over the higher terrain and pushing east during the late afternoon hours with gusty winds being the main threat. Highs will be slightly warmer than today with temperatures reaching into the upper 80s across the plains and 50s to 60 in the high country.

LONG TERM. (Sunday night through Saturday) Issued at 229 PM MDT Sat May 30 2020

Little change in the overall weather pattern through Tuesday with broad high pressure ridge aloft just east of Colorado while close low remains off Southern California coast. 700mb temperatures will be close to +15C for both Monday and Tuesday with resulting high temperatures in the upper 80s to around 90 degrees on the plains. There should be ample moisture for at least isolated to scattered coverage of storms each afternoon and evening as PW values range from 3/4 to around an inch of water. Best chance for storms will again be in mountains and adjacent plains and higher terrain areas.

By late Tuesday and Wednesday the flow aloft will turn a bit more westerly as a weak wave moves across the northern high plains and flattens the upper ridge. Expect some slight cooling behind a weak cold front but still ample low level moisture should be sufficient for another round of storms.

By late Thursday and Friday, the California low expected to begin to weaken and lift out in the southwest United States with increasing moisture, especially by Friday afternoon and evening. Temperatures still expected to be above normal for this time of year with high temperatures remaining in the upper 80s plains and 60s/70s in the mountains.

AVIATION. (For the 18Z TAFS through 18Z Sunday afternoon) Issued at 229 PM MDT Sat May 30 2020

VFR conditions will prevail through the TAF period Scattered thunderstorms are expected after 23z and could continue through 04z. Localized MVFR visibilities and wind gusts up to 40 knots are possible with the storms. Normal drainage patterns will prevail through 15z with another slight chance of storms after 21z on the 31st. These storms will be more high based and could produce strong gusty winds toward the end of the TAF period.

BOU WATCHES/WARNINGS/ADVISORIES. None.

SHORT TERM . Bowen LONG TERM . Entrekin AVIATION . Bowen


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Denver - Centennial Airport, CO6 mi47 minVar 610.00 miMostly Cloudy78°F50°F37%1015.2 hPa
Buckley Air Force Base Airport, CO9 mi1.7 hrsE 710.00 miMostly Cloudy78°F50°F38%1014.4 hPa
Denver, Denver International Airport, CO18 mi47 minESE 910.00 miMostly Cloudy78°F54°F43%1013.8 hPa
Broomfield / Jeffco, CO23 mi50 minNE 510.00 miMostly Cloudy77°F48°F36%1021.7 hPa

Link to 5 minute data for KAPA

Wind History from APA (wind in knots)
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Last 24hrN17
G24
3S13
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SW15SW18SW13SW12SW11SW10SW10W8NW8W7W6SW6NW63NE6NE9
G17
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1 day agoE6E5NE4NE4NE5S6S8S10S12S10S9SW8CalmSW3W3NW43NW43534S15S9
G18
2 days agoN6N6NW10S9S8S8S6SE4W6W6N7N9NW9N7N10N8NE65NE5NE7N7NE754

Tide / Current Tables for
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Tide / Current Tables for
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Weather Map
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GEOS 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 Denver/Boulder, CO (19,4,5,8)
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Ground Weather Radar Station Denver/Boulder, CO
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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 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.