Thursday, March30, 2017 L-36.com


Marine Weather and Tides
Douglas, AZ

Version 3.4
What's New / NOTES
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.
3/12/2015 - Added section for Gulf current for users in the GMZ marine zones.
This was requested by a user. If you have requests, please let me know.

Sunrise 6:06AMSunset 6:38PM Thursday March 30, 2017 3:50 AM MST (10:50 UTC) Moonrise 8:11AMMoonset 9:43PM Illumination 9% 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 Douglas, AZ
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location: 31.4, -109.54     debug


Area Discussion for - Tucson, AZ
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Fxus65 ktwc 300924
afdtwc
area forecast discussion
national weather service tucson az
224 am mst Thu mar 30 2017

Synopsis Warmer today ahead of a storm system that will bring
increasing winds Thursday afternoon and tonight, with stronger winds
Friday east of tucson. We'll also see another chance of showers
mainly northeast of tucson Friday and Saturday with a return to
cooler temperatures. Temperatures will then rebound to seasonal
averages early next week.

Discussion Clear skies this morning across southeast arizona with
shortwave ridging aloft passing through the area. The next system
in this amplified pattern is now seen on WV satellite imagery
digging down into northern california. As this system continues to
track southeast into the greats basin today, the pressure gradient
will start to tighten with gusty west to southwest winds this
afternoon. Meanwhile, the warmest temperatures of the week are in
store this afternoon with highs about 7 to 10 degrees above normal.

For tonight, as the trough closes off into an anomalously strong
upper low and moves into far northern arizona, the pressure gradient
will remain tight across the area with gusty winds continuing
through the evening and overnight. A surface cold front will also
track east to southeast across the forecast area from late this
evening through Friday morning. There are still some minor
differences in the timing of the front amongst the models with the
ecmwf seemingly the slowest with also the highest moisture fields.

Regarding qpf, the ECMWF is all alone in showing a few hundredths of
an inch along the cold front with the nam/gfs and even all members
of the SREF and GEFS dry. Given the strong dynamics and forcing with
the front, am a bit concerned we will have a similar scenario play
out to Tuesday morning with a few showers along the front far enough
southwest to include the tucson metro early Friday morning. However,
given the near overwhelming guidance against this scenario will
leave out mentionable pops except for the mountains where we will
indicate slight chances. Later shifts will need to continue to
monitor.

With the front clearing out of the forecast area completely by
midday Friday, that will leave us with much cooler temperatures with
highs running about 10 to 20 degrees cooler than today. The upper
low itself will be located across northeast arizona which will be
close enough for the chance of a few showers mainly across the
higher terrain of graham and greenlee counties. The other concern
Friday will be the strong gusty winds, particularly east of tucson.

Winds will likely be close to advisory thresholds especially for the
southeast half of cochise county.

As the upper low slowly transitions eastward into new mexico on
Saturday, areas northeast of tucson will remain close enough to the
low and its wrap-around moisture for a continued chance of a few
showers with continued cool temperatures. A few breezes are expected
Saturday afternoon for eastern areas but less than today and Friday.

By Sunday, the upper low will move far enough east to allow for
shortwave ridging to build back in with moderating temperatures.

Heading into early to middle portions of next week, the pattern will
become a bit more progressive with the next system Monday into
Tuesday remaining far enough north it shouldn't impact our weather
much except for once again some increased breezes. Expect
temperatures to remain a few degrees on either side of normal.

Aviation Valid through 30/00z.

Skc areawide. Sfc wind less than 10 kts thru 29/18z. Aft 29/18z,
nwly sfc wind at 8-16 kts, with the strongest wind in the upper gila
river valley near ksad. Aviation discussion not updated for taf
amendments.

Fire weather Afternoon breezes will continue today and
Thursday along with warmer temperatures. Another weather system will
then move in late Friday with gusty winds. Red flag conditions
possible Friday afternoon across far southern fire weather zone 152.

This system will also bring a chance of showers mainly northeast of
tucson Friday through Sunday.

Twc watches/warnings/advisories None.

Gl
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Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Bisbee Douglas International Airport, AZ5 mi54 minN 010.00 miFair42°F23°F47%1014.8 hPa

Wind History from DUG (wind in knots)
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Last 24hrNE9N8N9N6W5NW12N8
G19
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G17
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4N7NW7N7N9N9N11N10NW4N8Calm
1 day agoW4SW6NW19
G26
NW6SE6SE3Calm--NW13
G21
NW13
G27
NW19
G29
NW16
G26
NW21
G30
NW14
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G25
NW12NW10NW8N3NW5N8N4NW3NE4
2 days agoE6SE3SE4E5S6S7S8SW8CalmSW12
G17
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G23
SW13
G23
W15
G25
W16
G27
W17
G25
W14W7W8S8SW14SW9W9W13NW10

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
wmap_P
IR Satellite Image from GEOS
west_satellite

GOES Local Image of Southwest    EDIT
Geos

Wind Forecast for Tucson, AZ (6,6,7,8)
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Ground Weather Radar Station Tucson, AZ
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weather_mapweather_map weather_map

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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.