Friday, December13, 2019
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Marine Weather and Tides
Guadalupe, AZ

Version 3.4
NOTICE
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
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 7:22AMSunset 5:22PM Friday December 13, 2019 7:10 PM MST (02:10 UTC) Moonrise 6:59PMMoonset 8:45AM Illumination 94% Phase: Waning Gibbous; Moon at 17 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 132331 AFDPSR

Area Forecast Discussion National Weather Service Phoenix AZ 431 PM MST Fri Dec 13 2019

UPDATE. Updated Aviation Section

SYNOPSIS. High pressure will result in near to slightly above normal temperatures for the beginning of the weekend. Skies will remain mostly sunny with occasional increases in high clouds. A mostly dry weather system will arrive Sunday bringing cooler temperatures across the area with chilly morning low temperatures Monday and Tuesday. Temperatures will rebound slowly through the first half of next week.

DISCUSSION. Upper-level ridging continues to promote dry conditions across the Desert Southwest with only some passing cirrus to be noted on GOES West visible satellite imagery this afternoon. Mostly clear skies will continue through the remainder of this afternoon and through much of the day tomorrow.

Much of the day Saturday will be similar to today with mild temperatures remaining near to slightly above normal. Windy conditions are expected to develop across parts of southwest Imperial County tomorrow afternoon into Sunday so have issued a Wind Advisory. Increasing upper-level moisture ahead of a developing Pacific trough will promote an increase in upper-level cloud coverage late Saturday night. The trough axis will pass over the Four Corners area fairly quickly Sunday and move off to the east by Monday. The greatest moisture with this system will remain over northern Arizona with only a few showers possible across the higher terrain over southern Gila County. Cooler air moves in behind this system resulting in temperatures dropping into the low to mid 60s for highs across the lower deserts Sunday through Tuesday with Monday looking to be the coolest of those days. Overnight lows Monday night into Tuesday morning look to be chilly with low temperatures dipping down into the upper 30s to low 40s around the Phoenix metro.

Behind the aforementioned trough, a transient upper-level ridge will build into the southwest CONUS Tuesday into Wednesday before the next trough approaches the region later next week. GFS and ECMWF guidance differs on how deep this trough will dig. As of now, PoPs continue to remain low across south-central Arizona and southeast California with this system.

AVIATION. Updated at 2330Z.

South-Central Arizona including KPHX, KIWA, KSDL, and KDVT:

Passing high clouds at 20-25k feet are expected over the next 24 hours. Light easterly flow overnight will gradually veer to southerly during the late morning on Saturday, and eventually to westerly by Saturday afternoon. Winds should remain at or below 7 knots at all sites during this period.

Southeast California/Southwest Arizona including KIPL and KBLH:

Passing high clouds at 20-25k feet are expected over the next 24 hours, with a few clouds near 10k feet possible by Saturday afternoon. At KIPL winds will be light and variable overnight, but westerly winds will increase to 12-15 knots on Saturday afternoon. KBLH should remain light and variable until later Saturday afternoon but will also see westerly winds increase to 7-9 knots.

FIRE WEATHER. Sunday through Thursday: A weak low pressure system affects the region Sunday into Monday mainly ushering in cooler conditions. Moisture levels with the late weekend system should be rather dry, hindering precipitation chances although there is a chance of rain or high elevation snow on Sunday over high terrain east of Phoenix. Cooler conditions develop Sunday with highs falling below normal by Monday and into the lower 60s over the cooler lower deserts. Minimal warming returns returns Tuesday into Thursday as highs approach seasonal normal levels.Minimum humidity levels initially should stick around 25-35% much of the period, lowering into early next week with desert readings falling into the teens before humidity levels increase again later in the period. Breezy conditions move in for Sunday and Monday, mainly over deserts west of Phoenix. Light winds return again by Tuesday as weak high pressure aloft returns to the area.

SPOTTER INFORMATION STATEMENT. Spotters should follow standard reporting procedures.

PSR WATCHES/WARNINGS/ADVISORIES. AZ . None. CA . Wind Advisory from 1 PM Saturday to 10 AM PST Sunday for CAZ562.



DISCUSSION . Smith/Deems AVIATION . Hodges FIRE WEATHER . Kuhlman/CB


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Phoenix, Phoenix Sky Harbor International Airport, AZ2 mi19 minSSW 310.00 miA Few Clouds61°F45°F56%1015.3 hPa
Scottsdale Airport, AZ15 mi17 minN 010.00 miFair60°F46°F62%1015.9 hPa
Chandler, Chandler Municipal Airport, AZ16 mi83 minSSW 410.00 miFair63°F44°F52%1016.3 hPa
Glendale, Glendale Municipal Airport, AZ16 mi20 minN 010.00 miA Few Clouds59°F46°F63%1016.9 hPa
Mesa / Falcon Field, AZ17 mi16 minN 010.00 miFair58°F46°F67%1015.5 hPa
Phoenix, Phoenix-Deer Valley Municipal Airport, AZ19 mi17 minSE 310.00 miFair58°F46°F65%1015.6 hPa
Goodyear Municipal, AZ19 mi83 minN 010.00 miA Few Clouds61°F48°F63%1016.3 hPa
Luke Air Force Base / Phoenix, AZ21 mi72 minN 010.00 miFair63°F48°F58%1015.7 hPa
Phoenix-Mesa Gateway Airport, AZ21 mi20 minN 010.00 miFair61°F44°F55%1017.3 hPa

Link to 5 minute data for KPHX

Wind History from PHX (wind in knots)
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Last 24hrW4NW4SW3CalmE5E7E5E5E3NE5SE5E6E5SE7E6E43S4Calm3NW3W3SW3SW3
1 day agoSW3Calm3CalmCalmCalmE6SE4SE6E6SE6CalmE4E5SE63CalmNE3CalmS5W4W4SW4Calm
2 days agoCalmCalmE6CalmCalmE7CalmNW4CalmE3CalmSE43CalmCalmE73Calm4SE3SE4CalmSW3W5

Tide / Current Tables for
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Tide / Current Tables for
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Weather Map
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GEOS 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 Phoenix, AZ (21,6,7,8)
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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 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.