Thursday, March23, 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 6:15AMSunset 6:33PM Thursday March 23, 2017 1:05 AM MST (08:05 UTC) Moonrise 3:20AMMoonset 2:19PM Illumination 19% Phase: Waning Crescent; Moon at 25 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 230301
afdtwc
area forecast discussion
national weather service tucson az
800 pm mst Wed mar 22 2017

Synopsis A storm system will bring a chance of showers and
thunderstorms tonight into Thursday. This system will result in much
cooler temperatures Thursday, as well as gusty west to northwest
winds. Dry conditions with somewhat milder temperatures and gusty
winds at times will occur over the weekend into early next week.

Discussion In the big picture, an upper ridge was situated over
central/eastern texas, with a trough and associated storm system
over california. Although the ridge was well east of the area and
most locations across southeast arizona reported cooler highs today
(generally 1-4 degs of cooling), clear skies and southwest flow
ahead of the approaching system allowed areas east of tucson to warm
to just about yesterday's levels, with a record high broken at the
bisbee-douglas airport (high today was 87 degrees which broke the
old record of 86 degrees set in 1997). The breezy southwest winds
this afternoon have diminished considerably this evening. However,
still expect elevated south to southwest winds tonight (10-15 mph)
with the system approaching from the west.

Impressive height falls are associated with the california storm
system. IR and water vapor satellite imagery indicate the moisture
band ahead of the system (which produced showers and thunderstorms
across western arizona this afternoon/early evening) has lost it's
pacific feed. However, even with limited moisture, in conjunction
with height falls may still see a few showers or thunderstorms this
evening, primarily west of tucson as the system moves east. Best
chances for precipitation across southern arizona will be overnight
through mid-day Thursday as a vort MAX west of san diego rotates
through base of the trough and across the area. Overall, forecast
package looks to be in good shape with precipitation timing and
highest precipitation chances to the north/northeast of the tucson
metro area. No updates.

Aviation Valid through 24/00z.

Cloud decks will lower from west to east late tonight and Thursday,
as isolated to scattered -tsra/-shra move in from the west,
impacting ktus and kols after 23/09z. Prevalent conditions should
remainVFR.

Surface wind will continue to diminish this evening, with sly/swly
surface wind at 10-15 kts thru 23/16z. Increasing surface wind aft
23/16z, with wly/nwly surface wind at 17-25 kts and gusts to 25-33
kts Thursday afternoon. The strongest wind Thursday afternoon will
be east of ktus, in the vicinity of kalk, kdug and especially ksad.

Aviation discussion not updated for TAF amendments.

Fire weather A pacific storm system will bring a chance of
showers and thunderstorms tonight and Thursday, with the main focus
north/northeast of tucson. A few snow showers may occur across the
white mountains northeast of safford Thursday night. Dry conditions
will then prevail Friday into Sunday. There is a slight chance of
showers across the white mountains next Monday.

There will be gusty west to northwest winds Thursday accompanied by
higher rh values, then less wind Friday into Saturday. Some gusty
afternoon west winds are forecast to return Sunday and next Monday.

Prev discussion The large ridge axis is now east of our area,
with an increasing southwesterly flow ahead of the deep trough now
onshore near the west coast. Clouds increasing from the west
through tonight. Based on the track of the low a little north of
our area, and the associated cold front now entering western
arizona, it looks like the best chances for precip for most of our
area will be directly associated with the frontal passage
tomorrow morning. Some instability and residual moisture behind
the front tomorrow afternoon for a few showers or thunderstorms
mainly northeast of tucson. Rainfall between a trace and .1 in
valleys with a dusting to an inch or two of snow possible above
7000 feet. Most of the significant precip should be north of our
area.

Winds are holding nicely below advisory levels. The cooler air is
still on track behind the front tomorrow.

A shortwave ridge to end the week with temperatures jumping back
above average, but well short of what we've been seeing. The next
system this weekend will be a more traditional transition season
system, with wind the main concern and enough cool air to push
temperatures back down a few degrees.

Twc watches/warnings/advisories None.

Meyer
visit us on facebook... Twitter... Youtube... And at weather.Gov/tucson


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Bisbee Douglas International Airport, AZ5 mi70 minN 010.00 miFair57°F23°F27%1008.1 hPa

Wind History from DUG (wind in knots)
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Last 24hrE3SE6CalmCalmCalmE4E4S3S8S13
G20
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SW13SW9SW16SW10S6Calm
1 day agoE4CalmN3CalmNE5S4N4NW6CalmS8S11
G18
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W11SW9SW5E6E3SE6S5
2 days agoE8E7SE7SE4E4S3CalmS3S4S7S7SE7S12
G18
S5S8SW12SW9SW11SW7SW8SW5NE5E6E6

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 (4,6,7,8)
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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.