Sunday, May31, 2020
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Marine Weather and Tides
Foxfield, 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 8:22PM Sunday May 31, 2020 11:56 AM MDT (17:56 UTC) Moonrise 2:30PMMoonset 2:37AM Illumination 72% 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 Foxfield, CO
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location: 39.64, -104.8     debug


Area Discussion for - Denver/Boulder, CO
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FXUS65 KBOU 311554 AFDBOU

Area Forecast Discussion National Weather Service Denver/Boulder CO 954 AM MDT Sun May 31 2020

UPDATE. Issued at 946 AM MDT Sun May 31 2020

Current satellite imagery shows CU slowly starting to develop over the higher terrain with upper level flow mainly from the southwest behind the exiting trough. Dewpoints are slightly lower than yesterday with the morning sounding showing PW values a tenth of an inch lower than yesterday. This will provide for slightly lower CAPE values but with less mid level warming we could still see scattered storms into the evening hours. Model soundings still indicate with the increased low level drying that isolated severe wind gusts appear possible along with periods of moderate rain.

SHORT TERM. (Today and tonight) Issued at 406 AM MDT Sun May 31 2020

Clouds have been slow to dissipate, but are starting to fade now. The drying from the west anticipated for today is clearly going to be slower, and the latest model runs are picking up on this, with drying/clearing working into the mountains but not really until this evening. So again it turns out today will not be much different from yesterday. The air mass will be a little warmer, and surface dew points should be a bit lower but mainly just from the mixing that occurred yesterday and again this afternoon. We should get a decent amount of cloud cover from the mountain convection before late afternoon, which will likely keep us from hitting 90 in Denver. As far as storm type and coverage, it may be more like Friday or halfway between Friday and Saturday, with pretty good coverage over the Front Range, but storms struggling to survive on the plains, eventually helped by outflow convergence by early evening. CAPEs should be a little less than yesterday, perhaps around 1000 J/kg at most on the plains, but we may be a bit less capped at the end of the day. Still a minor severe threat, but will less CAPE and similar shear the threat may be a bit more wind, less hail and heavy rain, and more likely storms will stay below severe limits.

Overall, we just made minor adjustments to the going forecast for convective timing and more clouds overall and a degree or two cooler this afternoon.

LONG TERM. (Monday through Saturday) Issued at 406 AM MDT Sun May 31 2020

Temperatures will remain above normal through Saturday. Monday and Tuesday will warm to around 90, with an upper ridge over the central/southern plains, and a weak south to southwesterly flow aloft over the forecast area. Enough subtropical moisture continues to advect northward into CO to produce thunderstorms in the afternoon and evening. Best chance of thunderstorms will continue to be over the mountains, with isolated to scattered thunderstorms developing over the plains in the late in the day. The threat of severe thunderstorms should remain low, with gusty outflow winds and locally heavy rainfall the main threats. On Wednesday, the flow will be more westerly as a weak upper level disturbance brushes the state from the north. Not much impact from this system except slightly cooler (but still above normal) temperatures on Wednesday. The southerly flow aloft will reestablish itself over the state by the end of the week with the ridge axis over the Southern Plains. A closed upper low over southern CA Thursday night, is still progged to lift northeast across CO Friday night. The short wave trough will lift north of the state by 12z Saturday, with a drier southwesterly flow aloft in its wave for the weekend. Pops over the weekend are more isolated.

AVIATION. (For the 18Z TAFS through 18Z Monday afternoon) Issued at 946 AM MDT Sun May 31 2020

VFR conditions will prevail through tonight. Scattered thunderstorms will form over the higher terrain and push eastward between the hours of 23 and 03z. At this time confidence of thunderstorms at DEN are below 50% so have kept them out of the current TAF. However, outflow wind gusts up to 30 kts will be possible most likely from the southwest after 23z with thunderstorms in the vicinity. APA and BJC could see some isolated storms over the terminals with heavy rain and gusty winds a possibility. Localized MVFR visibilities and brief wind gusts to 40 knots are possible during that time.

BOU WATCHES/WARNINGS/ADVISORIES. None.

UPDATE . Bowen SHORT TERM . Gimmestad LONG TERM . Cooper AVIATION . Bowen


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Denver - Centennial Airport, CO6 mi64 minNNW 610.00 miPartly Cloudy81°F45°F28%1013.1 hPa
Buckley Air Force Base Airport, CO7 mi2 hrsWSW 310.00 miMostly Cloudy73°F51°F47%1013.7 hPa
Denver, Denver International Airport, CO16 mi64 minWSW 510.00 miMostly Cloudy78°F55°F45%1011.8 hPa

Link to 5 minute data for KAPA

Wind History from APA (wind in knots)
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Last 24hrNE9
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E56SE5W6SW10SW11W4SW3SW4S6SW6S7S5CalmW7SW3CalmW3CalmN6
1 day ago3534S15S9
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SW15SW18SW13SW12SW11SW10SW10W8NW8W7W6SW6NW63NE6
2 days agoNE5NE7N7NE754E6E5NE4NE4NE5S6S8S10S12S10S9SW8CalmSW3W3NW43NW4

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 (13,3,4,5)
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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 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.