Monday, August21, 2017 L-36.com


Marine Weather and Tides
Cherry Creek, CO

Version 3.4
What's New / NOTES
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.

Sunrise 6:17AMSunset 7:47PM Monday August 21, 2017 7:42 PM MDT (01:42 UTC) Moonrise 6:05AMMoonset 7:56PM Illumination 0% Phase: New Moon; Moon at 29 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 212140
afdbou
area forecast discussion
national weather service denver boulder co
340 pm mdt Mon aug 21 2017

Short term (this evening through Tuesday)
issued at 340 pm mdt Mon aug 21 2017
cooler air is pushing over the plains this afternoon, and will
likely keep that area too stable for convection. Still a low
threat of weak showers dying storm moving off the foothills for a
few miles. With a little lift we will hold on to low pops near the
eastern border. The incoming air near the mountains is dry, but
much richer moisture will move from western nebraska into colorado
later tonight. This should produce low clouds and areas of fog
Tuesday morning. Not sure about the threat of dense fog as there
will be some higher clouds and still some wind for mixing, but it
is a possibility.

For Tuesday the cool air mass plus the morning clouds should hold
temperatures back enough that the plains will be capped again
despite the moisture. Main activity should again be on the
interface between the moisture and the warmth over the east slopes
of the mountains, with some possible motion into the adjacent
plains late in the day, with a better chance in the evening.

Forecast highs are near guidance and look good.

Long term (Tuesday night through Monday)
issued at 340 pm mdt Mon aug 21 2017
the upper ridge axis is over the CWA Tuesday night and Wednesday.

The upper ridge flattens Wednesday night, then weak upper
troughing moves in Thursday night. The synoptic scale energy is
benign Tuesday night through Thursday night. The boundary layer
winds should adhere to normal diurnal trends through the periods.

Precipitable water values are in the 0.50 to 1.30 inches range
Tuesday night. Wednesday through Thursday night values range from
0.50 to 1.10 inches. Surface dew points are in the lower 40s f
west to lower 60s f far eastern plains through the periods. There
is decent CAPE over the mountains and foothills Tuesday evening.

Cape is pretty good over the mountains again late day Wednesday
and also over the eastern half of the plains. There is CAPE over
all the CWA late day Thursday with the highest amounts over the
eastern plains. The highest pops will be on late day Wednesday and
late day Thursday, pops will be in the 20$-40% for the plains and
30%-60%s for the high country. For temperatures, Wednesday's
highs are 1-4 c warmer than Tuesday's highs. Thursday's highs are
close to Wednesday's. For the later days, Friday through Monday,
models show the upper ridge building back to the west of colorado
over the great basin. The flow aloft will be westerly Saturday in
the night, then north and northwesterly later Saturday night
through Monday. Moisture is pretty sparse all four days.

Aviation (for the 18z tafs through 18z Tuesday afternoon)
issued at 340 pm mdt Mon aug 21 2017
areas of low clouds and fog are expected to develop after 09z.

A period of MVFR or ifr ceilings is likely, with a chance of a few
hours of lifr conditions if dense fog develops. The lifr threat
will end by 15z withVFR by 18z. Winds should be light during the
low conditions. After that, only isolated showers storms with
little or no impact on the denver area terminals.

Bou watches warnings advisories
None.

Short term... Gimmestad
long term... Rjk
aviation... Gimmestad


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Denver - Centennial Airport, CO6 mi49 minN 810.00 miMostly Cloudy78°F39°F26%1016.8 hPa
Buckley Air Force Base Airport, CO9 mi1.7 hrsN 1110.00 miMostly Cloudy82°F43°F26%1015.8 hPa
Denver, Denver International Airport, CO18 mi49 minENE 910.00 miMostly Cloudy80°F46°F31%1014.4 hPa
Denver Nexrad, CO20 mi47 minENE 1210.00 miMostly Cloudy81°F50°F34%1023 hPa
Broomfield / Jeffco, CO23 mi50 minN 010.00 miFair81°F41°F24%1023.7 hPa

Wind History from APA (wind in knots)
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Last 24hrW5SW9SW8SW9SW9SW14SW8S4CalmCalmCalmCalmW6W4NW3NE8NE4NE10N14N7N14
G18
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1 day agoN10E9
G16
S8S7S8CalmSW3S4CalmCalmCalmS3E3W5NW44NE6NE8N7E55NE5NE3SW5
2 days agoSE8S7S10S10S10S12SE10SE11S6SE3CalmW6CalmSW8SW114SW9NW8SE53SE5S9W7S3

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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Weather Map
wmap_P
IR Satellite Image from GEOS
west_satellite

GOES Local Image of CentralPlains    EDIT
Geos

Wind Forecast for Denver/Boulder, CO (21,6,7,8)
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Ground Weather Radar Station Denver/Boulder, CO
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weather_mapweather_map weather_map

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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.