Saturday, May26, 2018

Marine Weather and Tides
Brighton, CO

Version 3.4
What's New / NOTES
5/20/2018 -- NOAA is having problems with the data feed that I use to draw the graphs. They are aware of the issue and working to resolve it. Sometimes changing the location by about a mile will give a correct graph. 3/3/2018 - There is a new GOES Satellite for the east coast that required rewriting that part of the code. Please report any issues.

Sunrise 5:33AMSunset 8:18PM Friday May 25, 2018 10:24 PM MDT (04:24 UTC) Moonrise 4:27PMMoonset 3:43AM Illumination 86% Phase: Waxing Gibbous; Moon at 11 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 Brighton, CO
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location: 39.94, -104.76     debug

Area Discussion for - Denver/Boulder, CO
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Fxus65 kbou 260230
area forecast discussion
national weather service denver boulder co
830 pm mdt Fri may 25 2018

Issued at 830 pm mdt Fri may 25 2018
a few storms formed over far eastern colorado late this
afternoon. They have since weakened and moved into nebraska and
kansas. Other than mid convective clouds over park and douglas
counties, mostly clear skies are prevailing over the area. These
clouds should dissipate in the next 2-3 hours. Will tweak the
forecast to follow these trends.

Short term (this evening through Saturday)
issued at 245 pm mdt Fri may 25 2018
there is limited convective cloudiness over the CWA this
afternoon. There are a couple radar echoes over the far northeast
corner right now. Winds are pretty much adhering to normal
diurnal trends, and a bit weaker in speed than normal. Models keep
an upper ridge over the CWA overnight and Saturday. Ls 18z
Saturday the axis pushes east out of colorado. Weak westerly flow
aloft tonight gives was to slighting increasing southwesterly flow
aloft by 00z Saturday afternoon late. There is benign synoptic
scale energy over the forecast area tonight and Saturday morning.

Weak upward vertical velocity moves in Saturday afternoon. The
boundary layer winds should follow normal patterns tonight and
Saturday. For moisture is is dry overnight and much of Saturday,
with a bit of upper level cloudiness increasing from the west
Saturday afternoon. There is no measurable precipitation for the
cwa on the QPF fields tonight or Saturday. For pops, will put some
"isolated"s over zones 50 and 51. For temperatures, Saturday
highs will be 1-3 c warmer than today's highs. We could get close
to setting some record high readings for the date.

Long term (Saturday night through Friday)
issued at 245 pm mdt Fri may 25 2018
Saturday night and Sunday, a dry southerly flow aloft will
increase over co as the ridge axis shifts into the great plains. A
closed low centered over eastern nv western ut at 12z Sunday, will
slowly shift eastward into central ut by 00z Sunday. No relief
from the heat on Sunday with another day in the low 90s for
denver. 700 mb temperatures 16-18c Sunday afternoon. Fire danger
will be elevated mainly over south park and the southern front
range foothills. Too dry aloft over the mountains on Sunday for
more than isolated tstms in the afternoon and evening. Some
potential over the northeast plains, with surface based computed
capes 600-1200 j kg in the afternoon and evening, highest near the
ne ks borders. On Monday, the closed upper low will be over
northern ut western wy with weakening mid level winds and slightly
cooler mid level temperatures in the afternoon. Weak QG ascent
with a better chance of thunderstorms across the cwa, highest
along the northern border. Weak QG ascent present Sunday night and
Monday. Better low level moisture will be over the northeast
plains Monday with surface based capes of 500-1000 j kg along the
i-25 corridor with values around 2500 j kg along the eastern
border. Cooler with 700 mb temperatures 9-11c on Monday afternoon,
even cooler Tuesday with temperatures 7-9c. On Tuesday, weak mid
level subsidence with a westerly flow aloft over co. Ecmwf
continues to generate sfc based computed capes 300-700 j kg along
the i-25 corridor to 1000-1500 j kg along the eastern border. Not
as much with the gfs, especially over the co mountains. In any
event the best chc of pcpn across the CWA will occur Sunday night
through Tuesday. For the rest of the week, drier and warmer with
another upper level ridge over the region Wednesday through

Aviation (for the 00z tafs through 00z Saturday evening)
issued at 830 pm mdt Fri may 25 2018
vfr conditions will prevail through Saturday under mostly clear
skies. East to southeast winds will turn a normal southerly
drainage direction at kapa and kden around 06z. After light winds
Saturday morning, winds increase out of the southeast with gusts
to 25 knots possible after 21z.

Fire weather
Issued at 245 pm mdt Fri may 25 2018
for Saturday, the relative humidities will be pretty low over the
southern half of the CWA by Saturday afternoon; with south and
middle parks included. Winds gust speeds will be marginal for a
red flag warning. Will let the watch going Saturday afternoon in
south park where the fuels are quite dry.

No change for Sunday as hot and dry conditions continue for one
more day. Will go ahead an included a fire weather watch for 214
for Sunday as well. Could see slightly stronger winds on Sunday
as the flow aloft strengthens a bit.

Bou watches warnings advisories
Fire weather watch from Saturday morning through Saturday
evening for coz214.

Fire weather watch from Sunday morning through Sunday evening
for coz214.

Update... Meier
short term... ..Koop
long term... ... Coop
aviation... Meier
fire weather... Koop coop

Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Denver, Denver International Airport, CO8 mi32 minSE 1110.00 miA Few Clouds68°F39°F35%1007.8 hPa
Buckley Air Force Base Airport, CO15 mi87 minE 810.00 miA Few Clouds71°F38°F30%1008.4 hPa
Denver Nexrad, CO16 mi25 minSSE 1110.00 miFair71°F39°F33%1016.6 hPa
Erie Municipal Airport, CO16 mi31 minN 010.00 miFair67°F40°F37%1017.6 hPa
Broomfield / Jeffco, CO19 mi40 minWNW 750.00 miPartly Cloudy75°F35°F24%1017.3 hPa

Wind History from DEN (wind in knots)
Last 24hrSE7SW9SW8S10SW11SW10SW9SW10SW10SW8SW9SW3W4SW544N75NE12E8E11E10E8SE11
1 day agoN10NW10NW10NW8W7W6W3SW6SW6W8W5CalmE4CalmNE6W9
2 days agoNE4N8W6SW6SW4CalmSW6S5SW9W7SE3SE3NE5E4NW4

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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GOES 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.
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Wind Forecast for Denver/Boulder, CO (0,6,7,8)
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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 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.