Sunday, February18, 2018

Marine Weather and Tides
Naco, AZ

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 6:06AMSunset 5:27PM Sunday February 18, 2018 12:59 AM PST (08:59 UTC) Moonrise 8:43AMMoonset 8:58PM Illumination 10% Phase: Waxing Crescent; Moon at 3 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 Naco, AZ
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location: 26.7, -109.5     debug

Area Discussion for - Tucson, AZ
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Fxus65 ktwc 180340
area forecast discussion
national weather service tucson az
840 pm mst Sat feb 17 2018

Synopsis Patchy fog is possible again tonight but should not be
as widespread as Friday night. A couple of weather systems will
bring a chance of showers Sunday into Tuesday. As colder air moves
into southeast arizona Monday, snow will fall in the mountains,
especially the whites. After the precipitation exits the region,
freezing temperatures will return to valley locations Tuesday
night, mainly east of tucson.

Discussion Larger scale flow pattern has southwest flow aloft
across southeast arizona out ahead of an upper low located near
30n 120w. Considerable mid and upper level cloudiness over the
forecast area, though some partial clearing is taking place south
and west of tucson. This partial clearing will overspread the
remainder of the forecast area over the next several hours which
should allow enough radiational cooling to take place in a still
rather moist near surface layer to allow for patchy fog to develop
in valley locations overnight into Sunday morning. Any fog will burn
off mid to late Sunday morning, with the possibility of a few
showers developing during the day Sunday as a weak jet streak moves
by out ahead of the upper low which will shear out as it eject
across the area Sunday night. Thereafter, the focus turns to the
trough moving into the pacific NW and will rapidly dig to towards
the area Monday. Still some uncertainty as to just how much
precipitation there will be this far south Monday into Tuesday
morning. Will keep the forecast as is at this time and let the
midnight shift take a complete look at incoming 00z guidance. For
additional information see previous discussion below. No updates
this evening.

Aviation Valid thru 19 06z.

Expect sct clouds 3-6 kft agl and sct-bkn high clouds above 15k ft
agl through the forecast period. Due to lingering low-level moisture
patchy fog will again be possible between 18 09z - 18 16z, which
could create MVFR visibilities during that time period. CIGS will
also drop starting Sunday morning to bkn 3-6 kft agl with a slight
chance of -shra as well Sunday into Sunday night. Winds will be
variable less than 10 kts through 18 18z then increase out of the
southwest at 10-15 kts Sunday afternoon with gusts between 20-25 kts
before tapering off Sunday evening. Aviation discussion not updated
for TAF amendments.

Fire weather There will be another chance of valley rain
and mountain snow showers Sunday into Tuesday morning as a couple of
weather systems track through the southwest. The strong trough with
a tight pressure gradient will cause gusty conditions Monday with 20-
foot winds out of the west blowing near 20 mph and gusts up to 35

Prev discussion While the fog has lifted across the area, low
level moisture and some low-based cloudiness remain. Dew points are
still in the 40s to around 50. Expect patchy fog to form again later
tonight, although it should not be as widespread.

Looking at the big picture, an upper low west of baja california
continues to direct moisture into southeast arizona. The low will
kick eastward Sunday, and combined with a jet streak, act on the
moisture to develop isolated to scattered showers, mainly east of
tucson. Snow levels will remain high with only the very highest
peaks cold enough for any snow through Sunday night.

Another area of low pressure over the pacific northwest will dive
southeastward toward arizona Monday before turning east Tuesday.

The associated cold front will lower snow levels Monday night and
provide enough lift for significant mountain snow. At this time, the
rim figures to be the most favored area for accumulating snow, but
snow may also accumulate Monday night on other mountain ranges in
southeast arizona.

As the cold front passes Monday, expect breezy to windy conditions.

Then after skies clear Tuesday night, temperatures will drop below
freezing for the first time in over a week in valleys east of tucson
and may even approach freezing in the tucson metro.

Arizona will remain under the influence of low pressure aloft during
the latter half of the new work week, but at this time no
significant precipitation is expected. High temperatures for the
next 7 days will remain at or below seasonal normals. Tuesday and
Wednesday will be the coldest days, with highs 5 to 10 degrees below

Twc watches warnings advisories None.

Discussion... Lader
fire weather... Lader hardin
aviation... Lader hardin
prev discussion... Drozd
visit us on facebook... Twitter... Youtube... And at weather.Gov tucson

Weather Reporting Stations
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Airport Reports
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Tide / Current Tables for Yavaros, Sonora, Mexico
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Sun -- 04:59 AM MST     0.24 meters Low Tide
Sun -- 06:51 AM MST     Sunrise
Sun -- 08:43 AM MST     Moonrise
Sun -- 10:55 AM MST     1.13 meters High Tide
Sun -- 05:25 PM MST     -0.05 meters Low Tide
Sun -- 06:12 PM MST     Sunset
Sun -- 08:58 PM MST     Moonset
Sun -- 11:44 PM MST     1.01 meters High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Tide / Current Tables for Topolobampo, Sinaloa, Mexico
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Sun -- 05:01 AM MST     0.16 meters Low Tide
Sun -- 06:48 AM MST     Sunrise
Sun -- 08:41 AM MST     Moonrise
Sun -- 10:50 AM MST     1.01 meters High Tide
Sun -- 05:22 PM MST     -0.12 meters Low Tide
Sun -- 06:11 PM MST     Sunset
Sun -- 08:56 PM MST     Moonset
Sun -- 11:35 PM MST     0.93 meters High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Weather Map and Satellite Images
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Weather Map
IR Satellite Image from GEOS

GOES Local Image of SouthCentralPlains    EDIT

Wind Forecast for Tucson, AZ (3,6,7,8)
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Ground Weather Radar Station Tucson, AZ
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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.