Thursday, September20, 2018

Marine Weather and Tides
Eagle, CO

Version 3.4
What's New / NOTES
9/17/2018 XTide broke when 1and1 "upgraded" my server. It has been esculated. I am sorry for the problem.

Sunrise 6:46AMSunset 7:01PM Thursday September 20, 2018 1:37 AM MDT (07:37 UTC) Moonrise 4:07PMMoonset 1:29AM Illumination 78% Phase: Waxing Gibbous; Moon at 10 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 Eagle, CO
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location: 39.63, -106.82     debug

Area Discussion for - Grand Junction, CO
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Fxus65 kgjt 200531
area forecast discussion
national weather service grand junction co
1131 pm mdt Wed sep 19 2018

Issued at 711 pm mdt Wed sep 19 2018
gusty winds continue across the forecast area but the clouds and
precipitation have caused humidities to increase. Widespread
critical fire weather conditions are no longer being met, so the
red flag warnings have been cancelled. The gusty winds will
continue for the next few hours before dying down. No changes to
going forecast.

Short term (tonight through Thursday night)
issued at 348 pm mdt Wed sep 19 2018
the more expansive cloud cover is east of a line running southwest
to northeast from about moab to mack to craig and slowly filling
in westward. Scattered to widespread rain showers are occurring
underneath this cloud layer with no lightning in sight. There were
a few isolated strikes late this morning but the forecast is
working out as previously thought. There are enough breaks in the
cloud cover to warrant keeping isolated thunderstorm mention but
overall, expect mostly light to moderate rain with some gusty
outflow winds underneath showers. Relative humidity values are
much higher than seen in the past with this moisture advecting
northward, with values ranging from the 30s to 50s in the low
elevations and 60s and above in the higher elevations. West of
that edge of cloud cover, much drier conditions are being seen
with relative humidity in the teens and single digits across
northeast utah and northwest colorado. Even the moab area at
canyonlands airport is seeing rh of 15 percent with gusts of 25
mph or greater. So, mixing is occurring at times in these areas
where red flag warnings remain in effect with rh at 15 percent or
below. Forecast remains on track but red flag warnings may need to
be dropped a bit earlier before 10 pm depending on how quickly
the rh recovers as moisture continues to advect northward and
cloud cover fills in a bit more.

The cold front and trough is projected to move through the area
sometime after midnight tonight through early Thursday morning.

Much drier air moves in behind this cold front with precipitable
water values dropping below 0.25 inches. Conditions may remain
breezy at times through the overnight period as this trough moves
through. The cloud cover is keeping our daytime high temperatures a
bit cooler as well as we are struggling to get much surface
heating in those areas. This is a nice reprieve from the above
normal heat we have been experiencing and those who enjoy the fall
will be happy to note that Thursday looks cooler and closer to
seasonal temperatures. Due to the moisture and cooling
temperatures, the highest peaks of the san juans, west elks and
elks may see a skiff of the white stuff this evening before this
system moves out to the east. Nothing much by any means, but it
may make for nice contrast on the golden fall foliage which is
reaching its peak.

On Thursday, critical fire weather conditions may occur over
northwest colorado closer to the wyoming border as the better jet
support will remain over this region. However, conditions look
marginal and localized at this time, so held off on issuing any
fire weather highlites for Thursday as it looks borderline.

Confidence is also lower in this occurring due to the cooler
temperatures post-frontal which may also mean the rh will be a bit
higher in the upper teens. Low temperatures Thursday night may
drop near to a few degrees below freezing in some higher valleys
like gunnison, craig and steamboat springs, but the coverage does
not look widespread enough to warrant any freeze highlites. Future
shifts will need to monitor this potential with latest guidance.

Long term (Friday through Wednesday)
issued at 348 pm mdt Wed sep 19 2018
high pressure builds back over the region Friday into the weekend,
with dry conditions and near seasonal temperatures. A trough of
low pressure will track across the northern rockies Sunday,
dragging a weak shortwave across the north, which may result in
some light showers but most guidance remains dry. We may see
breezy conditions at times due to the proximity of the upper level
jet overhead at the base of this trough. Dry northwest flow takes
hold early next week with another trough dropping in from canada
and diving southeast across the northern high plains and front
range by mid-week. Once again, we will remain on the dry side of
things with some breezy conditions at times. These shortwaves and
the north to northwest flow looks to help reinforce the cooler,
near seasonal temperatures. So, our chance of breaking the record
of 90 days at or above 90 degrees in grand junction this month
looks slim. The pattern going forth towards the end of september
looks to favor a ridge of high pressure building over much of the
western states, which does not bode well for those hoping for more
moisture. Today looks like the best chance for the remainder of
the month at this time.

Aviation (for the 06z tafs through 06z Thursday night)
issued at 1129 pm mdt Wed sep 19 2018
broken to overcast skies remain across the area though clearing
skies can be seen just to our west. Under these clouds, some
showers also persist but not anticipate much in the way of
obstructions to visibilities. Cloud decks are generally in the 5k
to 10k range and will slowly lift overnight. By morning, few to
scattered skies will be common over eastern utah and extreme
western colorado and this lifting will continue through the
morning hours.

Fire weather
Issued at 348 pm mdt Wed sep 19 2018
breezy and dry conditions will occur at times tomorrow afternoon
across northwest colorado closer to the wyoming border
(particularly fire zone 200) but critical fire weather conditions
look marginal and more localized at this time.

Gjt watches warnings advisories
Co... None.

Ut... None.

Update... Tgr
short term... Mda
long term... Mda
aviation... Tgr
fire weather... Tgjt

Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Eagle County Regional, CO6 mi41 minE 410.00 miFair57°F45°F64%1011.4 hPa

Wind History from EGE (wind in knots)
Last 24hrCalmCalmSE3CalmCalmCalmCalmE3CalmW73E4SW5SW15SW15E11NE13
1 day agoCalmE3CalmCalmSE6CalmSE3CalmCalm33NW10W11W14
2 days agoCalmCalmCalm--E3CalmCalmCalmCalmCalmCalmW9W11

Tide / Current Tables for
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Weather Map and Satellite Images
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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.
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Wind Forecast for Grand Junction, CO (3,6,7,8)
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Ground Weather Radar Station Grand Junction, 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 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 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.