Thursday, April18, 2019

Marine Weather and Tides
Denver, CO

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 6:15AMSunset 7:41PM Thursday April 18, 2019 10:18 AM MDT (16:18 UTC) Moonrise 7:00PMMoonset 6:12AM Illumination 99% Phase: Waxing Gibbous; Moon at 14 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 Denver, CO
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location: 39.76, -104.88     debug

Area Discussion for - Denver/Boulder, CO
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Fxus65 kbou 181547
area forecast discussion
national weather service denver boulder co
947 am mdt Thu apr 18 2019

Issued at 947 am mdt Thu apr 18 2019
lingering slight instability and some lift from a jet streak are
keeping an area of showers going across the plains this morning.

The forcing for this will fade this afternoon, though there could
still be an isolated shower or two. Same story for the mountains
as there was pretty good coverage of light showers over the ridges
this morning that will likely fade this afternoon. Winds and
temperatures look on track.

Short term (today and tonight)
issued at 257 am mdt Thu apr 18 2019
north to northwest flow aloft will remain across the area today thru
tonight. Position of upper level jet combined with moisture
embedded in the flow, may continue to produce sct light showers
across portions of the plains thru mid morning. By aftn, the
upper level jet will shift a bit further east, so expect any aftn
showers to be confined to the far nern plains. In the mtns will
also see light orographic snow showers thru midday with activity
decreasing in the aftn. Meanwhile with decent mixing expected thru
the day, gusty north to northwest winds will develop across the
plains by midday. Gusts from 40 to 50 mph will be possible during
the aftn hours. As for highs, readings will be near seasonal
levels across nern co.

For tonight, drier air will spread across the area with no pcpn
expected overnight. Winds should gradually decrease during the
early evening hours over the plains.

Long term (Friday through Wednesday)
issued at 350 am mdt Thu apr 18 2019
models have upper ridging over the forecast area Friday through
Saturday. A weak upper trough is over southeastern colorado
Saturday night. The synoptic scale energy is pretty neutral over
the CWA Friday through Saturday afternoon. Then some weak upward
vertical velocity is progged into early Sunday morning. The low
level winds will stick to weak normal diurnal patterns Friday and
Friday night. There will be downsloping southwesterlies much of
the day Saturday, then normal drainage kicks in. Models bring a
cold front down after midnight. This is a bit later than yesterday's
runs indicated. It is pretty dry Friday through Saturday. Models
increase moisture Saturday night. There is little to no cape
progged Friday through Saturday. There is limited CAPE over the
plains Saturday night. There is no measurable precipitation on the
qpf fields Friday through Saturday afternoon. Then there are
small amounts scattered around late Saturday afternoon and
Saturday night. For pops will go with 10-30%s in the high
mountains Saturday afternoon. Will increase pops a bit Saturday
night, with "chance"s in the mountains and "slight chance"s for
the most of plains. For temperatures, Friday's highs are 5-8 c
warmer than today's. Saturday's highs are 0-3 c warmer than
Friday's. For the later days, Sunday through Wednesday, models
have weak upper troughiness, then southwesterly flow aloft through
the day Sunday into Sunday night. An open wave upper trough moves
slowly across colorado Monday into Tuesday. North-northeasterly
flow aloft is progged on Wednesday. There is plenty of moisture
around as well as upslope flow much of Sunday into early Tuesday.

Later Tuesday and Wednesday are dry with some warming.

Aviation (for the 18z tafs through 18z Friday afternoon)
issued at 947 am mdt Thu apr 18 2019
vfr through tonight. Light showers in the denver area will end by
19z. North winds will gust as high as 35 knots at kden kapa and 25
knots at kbjc this afternoon, diminishing by 02z, with S w
drainage winds resuming by 06z.

Bou watches warnings advisories

Update... Gimmestad
short term... Rpk
long term... .Rjk
aviation... Gimmestad

Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Buckley Air Force Base Airport, CO7 mi80 minENE 1010.00 miMostly Cloudy44°F37°F80%1020 hPa
Denver, Denver International Airport, CO13 mi25 minN 1310.00 miMostly Cloudy44°F37°F76%1021.1 hPa
Denver - Centennial Airport, CO14 mi25 minNE 10 G 2110.00 miMostly Cloudy44°F35°F71%1021.6 hPa
Broomfield / Jeffco, CO16 mi33 minE 810.00 miMostly Cloudy45°F37°F76%1024 hPa
Denver Nexrad, CO18 mi23 minNE 13 G 1910.00 miOvercast45°F39°F81%1023.7 hPa
Erie Municipal Airport, CO19 mi24 minNE 810.00 miOvercast45°F34°F66%1025.7 hPa

Wind History from BKF (wind in knots)
Last 24hrN9
1 day agoN4E4NE5E9SE10
2 days agoSW9NW5NE4CalmNE6E7E10

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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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.
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Wind Forecast for Denver/Boulder, CO (12,3,4,5)
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Ground Weather Radar Station Denver/Boulder, CO
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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 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 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.