Sunday, August18, 2019 L-36.com


Marine Weather and Tides
Byers, CO

Version 3.4
NOTICE
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 6:12AMSunset 7:53PM Sunday August 18, 2019 3:02 PM MDT (21:02 UTC) Moonrise 9:45PMMoonset 8:57AM Illumination 89% Phase: Waning Gibbous; Moon at 18 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
    EDIT      (on/off)   Help


7 Day Forecast for Marine Location Near Byers, CO
   Hourly   EDIT   Help
location: 39.94, -104     debug


Area Discussion for - Denver/Boulder, CO
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus65 kbou 182020
afdbou
area forecast discussion
national weather service denver boulder co
220 pm mdt Sun aug 18 2019

Short term (this evening through Monday)
issued at 124 pm mdt Sun aug 18 2019
a subtropical ridge is not going anywhere soon, and currently the
axis is right over our area. It shifts a bit east and intensifies,
reaching 594 dm by Monday afternoon. The ridge will continue to
suppress any hope of significant moisture return through Monday,
either in the mid levels or at the surface. Pw values remain in in
the 0.3" range across the mountains to 0.5" across the i-25
corridor, to 0.75" across the far northeast plains. With the
dryness and subsidence indicated in QG fields, convective chances
are pretty close to 0 the rest of today and tonight. Skies should
remain mostly clear with lows in the 60s across the i-25 corridor,
and upper 50s to near 60 elsewhere across the plains.

On Monday more of the same but with the building ridge at 500 mb
just east of us and 700 mb temps around +18 to +19 degc, high
temperatures should top out in the upper 90s across the plains. We
do not expect a slow start to the warming like this morning,
because convection across the central plains will be nil this
afternoon evening, so there will not be a source of cool moist
low-level that could advect into our area later tonight (like
early this morning). It will also be hot in the mountains, with
80s expected and even around 60 degrees at treeline. With
significant 700-500 mb flow retreating north, there won't be as
much wind in the mountains either. With very hot and dry
conditions, despite weak winds, fire danger will be elevated
tomorrow. Details in the fire wx discussion below.

Long term (Monday night through Sunday)
issued at 124 pm mdt Sun aug 18 2019
Tuesday and Tuesday night, a dry and weak west to southwesterly
flow aloft will remain over the northern co. Some subtropical
moisture does into the area late in the afternoon, primarily
impacting the mountains east of the continental divide. It will
remain hot and dry over the high valleys of jackson and grand
counties. Across the plains, another hot day is expected but with
a gradual increase in low level moisture behind a frontal
boundary that backs into the CWA late in the afternoon. This will
result in a better chance of showers and thunderstorms across the
area late Tuesday afternoon and Tuesday night. Not as hot as
Monday but still well above normal. Wednesday into Wednesday
night, temperatures will be closer to seasonal normals, with a
good chance of showers and thunderstorms across the region. Low
level moisture will remain in place across the northeast plains
with stationary front settled along the foothills and palmer
divide. The flow aloft will be weak and northwesterly as the
center of the upper ridge is centered closer to the four corners
area. Layer precipitable water values range from 0.5 along the
front range to 1.0 inch over the northeast plains Tuesday
afternoon. Those values increase to 1.0 and 1.3 inches
respectively for Wednesday afternoon. The trend of warmer and
drier will develop the latter part of the week and into next
weekend. There should still be a decent chance of thunderstorms
over the region on Thursday, but the pops will be confined
primarily to the higher terrain by the weekend with high
temperatures back into the mid 90s by Saturday.

Aviation (for the 18z tafs through 18z Monday afternoon)
issued at 124 pm mdt Sun aug 18 2019
vfr conditions through Monday with almost zero chances of
convection impacting the airports. East to southeast flow should
continue through this evening before going to drainage. Light and
variable winds should occur mid morning on Monday, then go to
northeast by midday and remain 8-12 kts or less. At this time we
are not expecting any significant gust fronts via convection
Monday afternoon and evening.

Fire weather
Issued at 124 pm mdt Sun aug 18 2019
winds in north and middle parks this afternoon are gusting to 25
mph with rh around 20 percent. Expect this to continue into the
early evening hours. On Monday, winds will be lighter pretty much
everywhere but it will be significantly hotter and a bit drier.

Rh should get down around 10-12 percent across the mountain
valleys, foothills, and much of the plains. If winds were a bit
stronger we'd consider highlights for the afternoon, but they
should remain light.

The fire danger will decrease a bit on Tuesday over the northeast
plains as low level moisture starts to increase from the
east northeast behind a weak frontal boundary in the afternoon.

Dry conditions however will keep the fire danger elevated
in the high valleys of north and middle parks Tuesday afternoon
but with continued light winds.

Bou watches warnings advisories
None.

Short term... Schlatter
long term... Cooper
aviation... Schlatter
fire weather... Schlatter cooper


Weather Reporting Stations
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports. Follow links for more data.
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Denver Nexrad, CO31 mi2.1 hrsE 810.00 miA Few Clouds82°F50°F32%1018.3 hPa

Link to 5 minute data for KFTG

Wind History from FTG (wind in knots)
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
Last 24hrSE8N6
G20
N14
G20
E13SE9SE7SE5CalmSW7S8S8SW10SW12SW11NE10E11E6--E4SE5CalmCalmE8E8
1 day agoE4N10
G14
N6CalmCalmN8--N7NE3S6SW15SW14--SW10SW14S14SW14S10SW8W4CalmN6SE8S7
2 days ago--NW7----N7N10--E19
G25
E7
G14
S5S5----S5SW7SW10------NW4NW3NW4NW4SE4

Tide / Current Tables for
   EDIT   Weekend mode (on/off)   (on/off)   Help
Tide / Current Tables for
   EDIT      (on/off)   Help
Weather Map and Satellite Images
       (on/off)   HelpWeather Map
wmap_P
GOES 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 (17,4,5,8)
      (on/off)   Help

Ground Weather Radar Station Denver/Boulder, CO
   (on/off)   Help
weather_mapweather_map weather_map

Ad by Google

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.