Wednesday, April1, 2020
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Marine Weather and Tides
Englewood, 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 6:41AMSunset 7:25PM Wednesday April 1, 2020 3:03 AM MDT (09:03 UTC) Moonrise 11:05AMMoonset 1:33AM Illumination 58% Phase: Waxing Gibbous; Moon at 8 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 010245 AFDBOU

Area Forecast Discussion National Weather Service Denver/Boulder CO 845 PM MDT Tue Mar 31 2020

UPDATE. Issued at 839 PM MDT Tue Mar 31 2020

Radar showing some light showers over northeast Weld and Logan counties this evening. Most of this likely virga so will hold off adding pops to those grids as they should die off shortly. Otherwise just some minor adjustments to the temperatures and winds.

SHORT TERM. (This evening through Wednesday) Issued at 330 PM MDT Tue Mar 31 2020

Moderate westerly flow aloft has been generating areas of mountain wave cloudiness, both over the mountains and out onto the plains. Temperatures have warmed nicely, and breezy conditions have been confined to the 25 to 30 MPH range. Decreasing winds are expected by evening as surface de-couple from the flow aloft.

Wednesday will be mostly dry and a few degrees warmer as west- southwesterly flow aloft continues across the state. By afternoon, moisture aloft will begin increasing over the mountains as a weak weather disturbance approaches from the northwest. Light snow will begin to develop by evening over the mountains. Sensible weather on the plains will wait until later tomorrow night.

LONG TERM. (Wednesday night through Tuesday) Issued at 330 PM MDT Tue Mar 31 2020

Moderately strong west-southwesterly flow aloft is progged Wednesday night for the forecast area. At that time, there is a pretty decent upper trough northwest of Colorado over the northern Rockies. On Thursday, that west-southwesterly flow aloft increases as the trough nears us. The bottom of that upper trough moves across the CWA Friday morning, with 70-90 knot zonal jet level flow in place Friday afternoon and night. There is weak upward vertical velocity progged for the CWA Wednesday night well into Thursday night. Subsidence is progged on Friday with neutral forcing Friday night. The approaching upper trough helps drag a cold front into the CWA, with upslope flow behind it, Wednesday evening. The low level wind and pressure fields keep northeasterly upslope low level flow over the plains and foothills all day Thursday and much of Thursday night. Southeasterlies are progged on Friday with normal drainage patterns Friday night. Moisture increases in the lower levels of the plains Wednesday night. Moisture gets fairly deep over much of the CWA Thursday and Thursday evening. Then moisture decreases into Friday before increasing again Friday afternoon. There is some minor CAPE around Wednesday evening, then again late day Thursday. There is a bit of measurable precipitation on the QPF fields Wednesday night, mainly over the northwestern half of the CWA. There is better coverage by Thursday afternoon and evening for much of the CWA, although amounts are not substantial. There is a tiny bit of measurable precipitation in the high country on Friday. The forecast soundings show it cold enough for snow by 12Z Thursday morning for the plains. There could be some rain over the southern half of the plains Thursday afternoon, then all snow Thursday evening. For temperatures, Thursday's highs should be about 9-18 C colder than Wednesday's highs. Fairly significant! Friday's highs will be a tad colder than Thursday's. For the later days, Saturday through Tuesday, models have southwesterly flow aloft for us through Tuesday. The moisture is not great, maybe enough for a few late day showers mainly in the alpine areas. Temperatures will be above seasonal normals Sunday through Tuesday.

AVIATION. (For the 00Z TAFS through 00Z Wednesday evening) Issued at 839 PM MDT Tue Mar 31 2020

No aviation impact tonight and Wednesday morning as ceilings and visibilities remain unrestricted. Winds will be generally out of the south overnight and southwesterly until late Wednesday afternoon, when it may transition to west/northwest ahead of an approaching cold front.

BOU WATCHES/WARNINGS/ADVISORIES. None.

UPDATE . Cooper SHORT TERM . Dankers LONG TERM . RJK AVIATION . Cooper


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Denver - Centennial Airport, CO12 mi70 minN 010.00 miFair41°F24°F51%1007 hPa
Buckley Air Force Base Airport, CO14 mi65 minS 810.00 miA Few Clouds41°F25°F54%1006 hPa
Broomfield / Jeffco, CO17 mi74 minW 810.00 miFair46°F23°F40%1009.8 hPa
Denver, Denver International Airport, CO22 mi70 minSW 1110.00 miA Few Clouds45°F26°F48%1004.7 hPa
Erie Municipal Airport, CO23 mi57 minN 010.00 miPartly Cloudy41°F25°F53%1010.5 hPa

Link to 5 minute data for KAPA

Wind History from APA (wind in knots)
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Last 24hrS6SE5S8SE5CalmSW126S6
G14
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S75N10
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NW4N8NE5NE5E5SE5S6CalmSE6W11CalmS9
1 day agoSW13
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S5S4W7NW5NW7N7N5N4N13N11
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CalmN6N4W4NW4S3CalmS6S8S7S6
2 days agoS8SW5S6S5SW63CalmCalmN733E7E83S6E9E4SE6SE5CalmSW5CalmS5SE4

Tide / Current Tables for
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Tide / Current Tables for
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Weather Map
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wmap_P
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 (5,6,7,8)
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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 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.