Wednesday, August23, 2017 L-36.com


Marine Weather and Tides
Nunn, CO

Version 3.4
What's New / NOTES
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.

Sunrise 6:18AMSunset 7:46PM Wednesday August 23, 2017 2:19 AM MDT (08:19 UTC) Moonrise 8:17AMMoonset 9:06PM Illumination 1% Phase: Waxing Crescent; Moon at 1 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 230215
afdbou
area forecast discussion
national weather service denver boulder co
815 pm mdt Tue aug 22 2017

Update
Issued at 809 pm mdt Tue aug 22 2017
still some lingering isolated showers and thunderstorms over the
mountains, with much of the activity focused over park and western
boulder counties. Some of this will slide into gilpin, clear creek
and jefferson counties through 10 pm. Expect much of this
activity to be finished by midnight and will just need to make
some minor adjustments to the evening forecast. The plains have
remained capped with dry conditions this evening.

Short term (this evening through Wednesday)
issued at 330 pm mdt Tue aug 22 2017
goes-16 and current radar trends continue to show a stable
atmosphere across the eastern plains. As expected, convection is
primarily confined to the east slopes of the mountains. Storms
have been having a difficult time getting out of the foothills so
far. Thus, despite the 50s dewpoints hanging on along the i-25
corridor, cooler temperatures and poor lapse rates aloft have led
to stable conditions and we do not expect any convection to
survive very far east of the foothills. A denver cyclone has set
up near dia with an attendant convergence zone across the eastern
side of metro denver. A bubbling CU field is in the vicinity of
the convergence zone and we will watch the feature the remainder
of this afternoon and evening for development given potential
instability should remain limited. Isolated storms should continue
through this evening across the mountains and foothills along and
east of the continental divide, diminishing with the loss of
daytime heating. Skies should become mostly clear overnight area-
wide with seasonal low temperatures.

On Wednesday the west coast trough axis is located along the
california coast with an upper-level ridge axis right across
colorado. Weak westerly flow should exist in the mid and upper
levels. Models are hinting at some mid-level moisture being
advected north Wednesday afternoon and increasing pwats a little,
up to 0.85" west of a ft. Morgan to limon line, and about a half
inch in the mountains. In the low levels, shallow moisture
remains in place tomorrow morning but the high res models want to
mix it out by Thursday afternoon, particularly west of ft. Morgan
to limon line. Eastern colorado will have the deepest low-level
moisture and by far the best pwats, up to 1.25" or better. Despite
the good moisture, not seeing a well defined forcing mechanism to
initiate convection across the eastern quarter of colorado during
the daylight hours. Expect thunderstorms to form over the
mountains early afternoon and attempt to move east. If the low-
level moisture mixes out as anticipated, rain chances will be low
again along and east of the i-25 corridor. With the moisture mixed
out, temperatures will rebound across the plains to the upper 80s
to near 90. Another decent chance of afternoon evening
thunderstorms for the mountains and foothills, similar to the
previous few days. Mountain temperatures will be similar to
Tuesday's with the ridge in place and lack of significant moisture
in the mid- levels.

Long term (Wednesday night through Tuesday)
issued at 330 pm mdt Tue aug 22 2017
mid and high level moisture will increase through
Thursday. At low levels, there will be some moisture over the
eastern parts of the plains, with less near the mountains. This
means we will be marginal for surface based convection over the
plains, but likely to have storms developing over the mountains.

In addition, there is some weak synoptic scale lift moving over
on Thursday that should cause increased convection in the moist
neutral airmass. Drier air moves in on Friday, and then the
upstream ridge builds bringing the flow aloft more northerly. This
will also promote drying. There is little temperature change either
at the surface or aloft through the weekend as the northerly flow
will generally offset the subsidence.

Our forecast shows modestly higher rain chances Wednesday night
through Thursday night, then lower chances after that, mainly
over the mountains. Only minor temperature variations, probably
a few degrees cooler on Thursday due to cloud cover, then warmer
over the weekend with less cloud, and possibly a little cooler
again on Monday or Tuesday as a weak cold front drops across
the plains.

Aviation (for the 00z tafs through 00z Wednesday evening)
issued at 809 pm mdt Tue aug 22 2017
modest southerly flow this evening at apa,kden and will continue
for the rest of tonight. Partial clearing of the high level deck
of clouds by later tonight. Slightly better chance for storms on
Wednesday but low areal coverage so will not mention TS in
terminal forecasts.

Bou watches warnings advisories
None.

Update... Entrekin
short term... Schlatter
long term... Gimmestad
aviation... Entrekin


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Fort Collins/Loveland - Northern Colorado Regional Airport, CO16 mi24 minNNE 310.00 miFair61°F57°F87%1016.3 hPa
Greeley, Greeley-Weld County Airport, CO21 mi24 minN 49.00 miFair56°F55°F97%1018.1 hPa

Wind History from FNL (wind in knots)
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Last 24hrE5E5CalmE3E4SE7SE9SE7SE7SE7CalmNW4W5NW6W4CalmCalmNE4SE5N4NE6NE6N6N3
1 day agoNE6N5N4SE5CalmCalm45E5SE4NE16N8N7E7E4E10E11E8E6CalmCalmNE4SE4NE4
2 days agoN3N3E8N3NE5N4CalmN4E7E12E11
G19
SE12E5CalmSE6N4E4CalmW3W4CalmCalmNW4N5

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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Weather Map
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IR Satellite Image from GEOS
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GOES Local Image of CentralPlains    EDIT
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Wind Forecast for Denver/Boulder, CO (4,6,7,8)
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Ground Weather Radar Station Cheyenne, WY
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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.