Tuesday, December18, 2018 L-36.com


Marine Weather and Tides
Englewood, 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 7:14AMSunset 4:39PM Tuesday December 18, 2018 3:45 AM MST (10:45 UTC) Moonrise 2:04PMMoonset 2:32AM Illumination 83% Phase: Waxing Gibbous; Moon at 11 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 Englewood, CO
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location: 39.68, -105     debug


Area Discussion for - Denver/Boulder, CO
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Fxus65 kbou 180249
afdbou
area forecast discussion
national weather service denver boulder co
749 pm mst Mon dec 17 2018

Update
Issued at 740 pm mst Mon dec 17 2018
no significant changes to the grids at this time. Weak upper
trough moving across the region, with limited snow shower
coverage in the mountains so far. Current sky and pops grids
look reasonable at this time.

Short term (this evening through Tuesday)
issued at 319 pm mst Mon dec 17 2018
a weakening upper level trough will move across the forecast area
late tonight and early Tuesday morning. Mid level moisture will
increase, as evidenced by the latest satellite imagery from
western colorado, utah, and northern arizona. Any orographic
enhancement is quite weak, however, so don't expected more than a
few light snow showers or flurries over the mountains above
9,000-10,000 feet. On Tuesday, the upper level trough will pass to
the east, allowing a drier west northwest flow to develop post-
trough. That will bring a return of sunshine for the late morning
and afternoon hours. There is only weak cold air advection behind
the trough, so expect another day of much above normal
temperatures with highs reaching the 50s over all of the plains,
40s in the foothills, and upper 20s and 30s mountains and high
valleys.

Long term (Tuesday night through Monday)
issued at 425 pm mst Mon dec 17 2018
a developing upper ridge over the western united states Tuesday
night and Wednesday is going to bring an active period of weather
to colorado on Wednesday. As the ridge is building, a surge of
pacific moisture will ride over the ridge and move across the
state, producing some snow in the mountains. At the same time a
strong upper jet will be moving over the ridge and digging over
colorado. These ingredients will come together to produce the
mountain snowfall along with gusty wind in the mountains
beginning Tuesday night and continuing through Wednesday. The
plains will also see gusty winds on Wednesday. The 140 knot jet
will be coming over the state with quite a northwesterly
orientation. This will reduce the threat of developing an
amplified mountain wave, but the strength of the jet and all of
the momentum transfer is going to produce a brute force episode of
gusty winds. Snow amounts in the mountains look like they will
remain below 6 inches over a 24-36 hour period, but wind gusts of
50 to 60 mph will be possible over mountain ridges. Areas of
blowing and drifting snow can also be expected in the high
country. On the plains, areas east of the i-25 corridor should see
wind gusts of 50 to 60 mph through Wednesday afternoon. Will
issue a high wind watch for much of northeast colorado. A lack of
recent moisture on the plains will also allow areas of blowing
dust to accompany the gusty winds.

The wind and snow will subside Wednesday night as the upper ridge
builds over the state and the jet moves out over the great plains.

This will usher in warmer temperatures and benign weather for the
end of the week. Another upper trough out of the pacific northwest
will move over the state Saturday night and Sunday with cooler
temperatures to begin the holiday week. Mountain areas will also
see an increased chance of snow as the upper trough passes. On the
plains, dry conditions are expected to continue.

Aviation (for the 00z tafs through 00z Tuesday evening)
issued at 740 pm mst Mon dec 17 2018
vfr conditions will prevail through the period. Broken high
clouds overnight with a brief period of scattered to broken mid
level deck 04z-08z, but ceilings will remain above 10,000 feet.

Light and variable winds will transition to normal south southwest
at 6-10 knots around 04z. Winds on Tuesday will likely become
more northerly after 18z but hold under 10 knots.

Bou watches warnings advisories
High wind watch from Wednesday morning through Wednesday
afternoon for coz038-042>049.

Update... Cooper
short term... Barjenbruch
long term... Cooper
aviation... Cooper


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Denver - Centennial Airport, CO12 mi53 minSSE 310.00 miOvercast37°F18°F46%1014.1 hPa
Buckley Air Force Base Airport, CO14 mi1.8 hrsSW 410.00 miMostly Cloudy43°F15°F33%1012.3 hPa
Broomfield / Jeffco, CO17 mi54 minSW 610.00 miFair46°F21°F37%1015.6 hPa
Denver, Denver International Airport, CO22 mi53 minS 910.00 miMostly Cloudy39°F16°F39%1012.4 hPa
Erie Municipal Airport, CO23 mi52 minSSW 310.00 miFair30°F19°F66%1017.3 hPa

Wind History from APA (wind in knots)
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Last 24hrS4CalmSW4SW9SW5SW3SW9W6NW43N6N5N53CalmCalmCalmCalmS3W3S4S3S4S3
1 day agoS5E7S6S6SE6SE4Calm363SE5E45S6S4W6S6S6SE5S6S5S9S7Calm
2 days agoCalmCalmSW3S5SE6CalmS5SW8N8E3SE4SE5S7S5S7S6S8SE4SE3S5S4CalmNW6SW7

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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GOES 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 (5,6,7,8)
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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 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.