Monday, September24, 2018

Marine Weather and Tides
Guadalupe, AZ

Version 3.4
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9/17/2018 XTide broke when 1and1 "upgraded" my server. It has been esculated. I am sorry for the problem.

Sunrise 6:16AMSunset 6:23PM Sunday September 23, 2018 10:15 PM MST (05:15 UTC) Moonrise 6:02PMMoonset 4:49AM Illumination 99% Phase: Full Moon; Moon at 14 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 Guadalupe, AZ
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location: 33.41, -112.04     debug

Area Discussion for - Phoenix, AZ
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Fxus65 kpsr 240459 aaa
area forecast discussion
national weather service phoenix az
1000 pm mst Sun sep 23 2018

Update Updated aviation discussion...

High temperatures will continue at or just above 100 degrees through
the week with only modest day to day changes anticipated. Expect a
slight to moderate increase in moisture aloft through the early
part of the week followed by drier air again by Wednesday.

Precipitation and storm chances will remain very low and are
generally not expected through the forecast period with the
occasional slight possibility of very isolated, short-lived
afternoon pop-up showers and storms.

A flat high pressure ridge aloft remains in control of south-central
az today to bring yet another day of hot, above normal temperatures
across the region. Early afternoon temperatures ranged from the low
to mid 100s out west to the upper 90s to low 100s across the lower
deserts. It's also drier today with surface dewpoints two days into
a drying trend registering 12 to 19 degrees lower than yesterday
afternoon with readings in the mid 30s to mid 40s. Afternoon
satellite imagery depicted patchy middle clouds drifting
northeastward over southern to southwest az with mostly clear skies
across other lower desert areas.

Little change is expected in the sensible weather this week with
high temperatures near or just above 100 degrees into next weekend
amidst very low storm chances. The high pressure aloft is forecast
to flatten and reposition more to the southwest of the region as
broad, saggy cyclonic troughing and stronger westerly flow takes its
place over arizona. In addition a slight to moderate increase in
moisture parameters is also expected from now through Monday as pw
near 0.75 in. Increase to near 1.4 in. Due to light to moderate
midlevel and some bl moisture advection from NW mexico. As a result
several of the high-res models such as the href show very isolated
and small pop-up storms and showers over portions of the lower
deserts through Monday, thus the non-zero pops across the lower
deserts are included in the forecast.

On Tuesday and Wednesday a relatively dry, shallow and weak four-
corners trough axis will move across the region and try to draw up
some moisture from NW mexico into far se, E and NE az, although
during a simultaneous drying trend further west in the lower
deserts. Models remain in agreement that the isolated storm activity
associated with this feature will likely be confined to far se, e
and north-central az.

For the second half of the week dry northwesterly flow will be in
control followed by a ridge of high pressure moving into the
intermountain west which will increase h5 heights over south-central
deserts to near 588-590dam by Thursday and Friday. By Saturday the
ridge axis shifts east of the region and is replaced by
southwesterly flow aloft as well as increasing moisture out ahead
of a closed low pressure storm system moving east into northern

South-central arizona including kphx, kiwa, and ksdl:
only minimal aviation impacts through Monday evening. Sct-bkn cigs
around 10k ft and virga are still forecast to develop overnight into
the early morning hours on Monday as mid-level moisture is pulled
northward into the region. Clearing is then expected to commence
Monday afternoon evening as drier air moves back into s-central az
from the west. Easterly drainage winds are expected to develop
sometime after midnight tonight, then revert back to westerly by
late afternoon on Monday.

Southeast california southwest arizona including kipl and kblh:
little to no aviation concerns through Monday afternoon with just
some occasional mid high clouds. Winds to follow typical diurnal
trends at kipl while remaining mostly from a southerly direction at

Aviation discussion not updated for amended tafs.

Fire weather
Wednesday through Sunday:
temperatures will remain several degrees above seasonal normals
through the weekend with dry weather for all districts. Minimum
afternoon humidity levels will range from the teens in lower
elevations to around 25% at higher terrain north and east of
phoenix. Overnight recovery will be fair to good. Wind speeds should
remain typically light for early autumn with only the usual
afternoon upslope gustiness.

Spotter information statement
Spotters should follow standard reporting procedures.

Psr watches warnings advisories
Az... None.

Ca... None.

Discussion... Sawtelle
aviation... Percha
fire weather... Mo

Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Phoenix, Phoenix Sky Harbor International Airport, AZ2 mi25 minN 010.00 miPartly Cloudy94°F41°F16%1004.4 hPa
Scottsdale Airport, AZ15 mi23 minN 010.00 miFair87°F39°F19%1005.5 hPa
Glendale, Glendale Municipal Airport, AZ16 mi4.5 hrsE 310.00 miA Few Clouds99°F42°F15%1006.8 hPa
Chandler, Chandler Municipal Airport, AZ16 mi89 minN 010.00 miFair88°F44°F22%1007.4 hPa
Mesa / Falcon Field, AZ17 mi2.5 hrsSSW 540.00 miClear93°F39°F15%1007.4 hPa
Goodyear Municipal, AZ19 mi89 minVar 310.00 miA Few Clouds90°F44°F21%1006.8 hPa
Phoenix, Phoenix-Deer Valley Municipal Airport, AZ19 mi23 minN 010.00 miFair85°F41°F21%1005.2 hPa
Phoenix-Mesa Gateway Airport, AZ21 mi29 minVar 420.00 miClear82°F46°F28%1008.5 hPa

Wind History from PHX (wind in knots)
Last 24hrSE4E4SE5SE10SE7E4E4E4E6SE6SE8E8SE10SE8SE12
1 day agoN3E6E6E6E5SE8E5SE7SE4E6E7SE9E5E8E544S6CalmSE5S6S6SE7E4
2 days agoE4E7E6E7SE6E6E8E5E6E6CalmN4N43W83SW6W8SW3SW5SW4S3SW3Calm

Tide / Current Tables for
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Weather Map and Satellite Images
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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 Phoenix, AZ (1,6,7,8)
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Ground Weather Radar Station Phoenix, 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.