Sunday, July5, 2020
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Marine Weather and Tides
Nunn, 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 5:33AMSunset 8:35PM Saturday July 4, 2020 10:49 PM MDT (04:49 UTC) Moonrise 8:31PMMoonset 4:53AM Illumination 100% Phase: Full Moon; 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 Nunn, CO
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location: 40.66, -104.88     debug


Area Discussion for - Denver/Boulder, CO
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FXUS65 KBOU 050151 AFDBOU

Area Forecast Discussion National Weather Service Denver/Boulder CO 751 PM MDT Sat Jul 4 2020

UPDATE. Issued at 751 PM MDT Sat Jul 4 2020

Showers and thunderstorms have cleared out of the mountains and I-25 corridor with clearing skies spreading across the forecast area. Areas of showers and thunderstorms remain over Morgan, Washington and Lincoln Counties, but trends show the intensity and coverage decreasing. Shower activity over the plains should be completely ended by about 9 PM. Winds have also been decreasing, and impact on evening outdoor activities should be minimal after sunset.

SHORT TERM. (This evening through Sunday) Issued at 254 PM MDT Sat Jul 4 2020

There is broad "Denver Cyclone" circulation going at this time. Convection is going over the mountains and foothills and has recently commenced along Douglas/Elbert County border northward to DIA line. There is some drying/lowering of the dew points in the downsloping off the Palmer ridge. For example; DIA's dew point temperature is 42 F at present time. The motion of the storms is non-existent. Models keep upper ridging over the CWA tonight and Sunday, with weak southwesterly flow aloft tonight and weak west- northwesterly flow aloft on Sunday. The QG Omega fields show neutral vertical velocity for the first two periods. The low level winds should continue stays quo through early this evening, then normal drainage patterns. Models have some form of easterlies on Sunday from 18Z onward. Moisture wise, Precipitable water values are only a tad lower Sunday afternoon than they are, suppose to be, early this evening. The highest CAPE proggs for this evening are over the southeastern CWA, mainly Lincoln County. For Sunday afternoon, the highest values are over the mountains and foothills. For pops this evening, will mainly gave "chance"s through mid/late evening, then nothing overnight. For Sunday aftenoon's pops, 20%-50%s with the highest in the mountains. Sunday's high temperatures look close to today's highs.

LONG TERM. (Sunday night through Saturday) Issued at 143 PM MDT Sat Jul 4 2020

Sunday night through Tuesday, upper level high pressure will extend from the Desert Southwest into the Central Plains States with an upper level trough of low pressure over the western United States. North central and northeastern Colorado will be under the influence of a southwesterly flow aloft with some lingering subtropical moisture over the area. This pattern will lead to very warm temperatures along with isolated to scattered high based afternoon and evening showers and thunderstorms through the period. The main threat with the storms will be gusty winds and dangerous cloud to ground lightning. However, local moisture convergence due to boundary interactions could result in a couple of stronger storms with locally heavy rain and small hail across the plains east of Denver Sunday night and Monday. Drier conditions on Tuesday will lead to elevated fire weather conditons.

On Wednesday, the models are showing the upper high over Desert Southwest flattening with a drier westerly flow aloft over Colorado. This pattern should result in dry weather across the CWA with above normal temperatures continuing. The combination of low relative humidity and increasing westerly winds will lead to increasing fire danger across the high country.

Hot and mostly dry weather is expected Thursday through Saturday as the upper level ridge of high pressure builds over Rocky Mountain Region and Central Plains States. Temperatures could reach 100 degrees across some plains locations on Friday and Saturday. The continued above normal temperatures and low relative humidity will keep the fire danger elevated across the high country through the period.

AVIATION. (For the 00Z TAFS through 00Z Sunday evening) Issued at 751 PM MDT Sat Jul 4 2020

Storms have moved east of the Denver area airports and no more impacts to aviation are expected tonight. Southerly winds should prevail overnight. Unlimited ceilings and visibilities will prevail through tomorrow morning, but another round of showers and thunderstorms are expected in the afternoon.

BOU WATCHES/WARNINGS/ADVISORIES. None.

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


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Fort Collins/Loveland - Northern Colorado Regional Airport, CO16 mi53 minSSW 810.00 miFair65°F55°F70%1015.5 hPa
Greeley, Greeley-Weld County Airport, CO21 mi53 minSW 1010.00 miFair68°F55°F65%1017 hPa

Link to 5 minute data for KFNL

Wind History from FNL (wind in knots)
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Last 24hrS5E5E7SE4W4NE5N5N3N3N3E3Calm4S3E9
G15
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1 day agoE5E9SE14
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SE4E3NE4N5N4CalmE8N433NE665NE8SW8W16
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2 days agoSE12S7E7Calm4N5N8N8N9N7NE53E55SE7SE113SE6S7S6SE20
G25
SE14SE4Calm

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 CentralPlains    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 (0,6,7,8)
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Ground Weather Radar Station Cheyenne, WY
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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.