Friday, May26, 2017 L-36.com


Marine Weather and Tides
Catalina Foothills, AZ

Version 3.4
What's New / NOTES
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 5:18AMSunset 7:23PM Thursday May 25, 2017 10:31 PM MST (05:31 UTC) Moonrise 5:28AMMoonset 7:25PM Illumination 0% Phase: New Moon; Moon at 1 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 Catalina Foothills, AZ
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location: 32.29, -110.91     debug


Area Discussion for - Tucson, AZ
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Fxus65 ktwc 260410
afdtwc
area forecast discussion
national weather service tucson az
910 pm mst Thu may 25 2017

Synopsis Gusty winds and slightly below normal daytime
temperatures will occur Friday. A warming trend with less wind will
then prevail Saturday into Monday. A weak low pressure system will
bring a chance of showers and thunderstorms especially east of
tucson Monday into next Thursday.

Discussion Ir satellite imagery has indicated a gradual decrease
in cirriform clouds across southeast arizona during the past 2-3
hours. The back edge of these mostly high-level clouds extended from
just east of phoenix southwestward into the northern gulf of
california. Thus, mostly clear skies were across western pima county
as of 9 pm mst, and partly cloudy skies prevailed elsewhere across
the area. Surface wind speeds valid 9 pm mst had diminished to less
than 10 mph for most locales, although 15-20 mph speeds were
observed mainly across southern cochise county.

The 26 00z nam GFS were very similar with depicting the bulk of 500-
300 mb moisture of significance to be east of this forecast area by
daybreak Friday. Thus, sunny skies will likely be the rule for much
of southeast arizona Friday. The lack of clouds may produce higher
wind speeds Friday versus today. However, wind speeds are expected
to remain below wind advisory criteria. High temperatures Friday are
forecast to be about 2-5 degrees cooler versus temperatures achieved
this afternoon. Expect a degree-or-two of warming Saturday.

Please refer to the additional sections for further detail.

Aviation Valid thru 27 06z.

Sct-bkn clouds mostly above 20k ft agl then decreasing clouds from
west-to-east overnight. Clear skies or a few clouds above 20k ft agl
will prevail Friday into Friday evening. Surface wind decreasing to
mainly less than 12 kts by daybreak Friday. Surface wind 15z-18z
Friday and into Friday evening swly wly 12-25 kts with gusts to near
35 kts. The strongest speeds will be east of ktus. Aviation
discussion not updated for TAF amendments.

Fire weather A red flag warning is in effect from 10 am to 8 pm
mst Friday for portions of fire weather zones 151 and 152, mainly
south-to-southeast of tucson. The combination of strong and gusty
winds, low relative humidity values and a very high fire danger will
create critical fire weather conditions.

Less wind will prevail this weekend and next week. Some increase in
moisture will result in a slight chance of mainly afternoon and
evening thunderstorms near higher terrain Monday into next
Wednesday. Expect erratic and gusty winds due to thunderstorm
outflows.

Prev discussion 237 pm mst Height and thickness decreases will
continue the cooling trend into Friday, with nearly steady daytime
temperatures Saturday. Overall, afternoon temperatures will be 1-3
degrees below normal Friday and Saturday, warming to slightly above
normal on Sunday.

A highly amplified ridge of high pressure will build across the
western united states late in the weekend into the middle of next
week. The high will be centered over northwest nevada Sunday,
gradually shifting east into central utah by Wednesday. Weaknesses
in the flow under this ridge will allow moisture to push westward
into the southern arizona Monday through Thursday of next week. The
bulk of this moisture will remain east of the tucson metro area
across cochise, graham and greenlee counties.

The models indicate a weak upper low will develop off the baja
peninsula late Monday into early Tuesday, shifting east across
sonora Tuesday into Wednesday. Flow around this feature may
contribute to the westward push of moisture across southern arizona.

The latest numerical guidance figures have fairly robust numbers for
this time of year, with 20 30 pops for eastern portions of the
forecast area on Tuesday and Wednesday of next week. As a result,
have bumped up pops for the valley locations across eastern portions
of the forecast area next week into the slight chance category (and
a good chance in the white mountains).

However, have not gone quite as aggressive as the guidance values
just yet. Still plenty of time between now and then to evaluate
additional model runs and make any pop adjustments. Daytime
temperatures are expected to peak on Monday, with a gradual cooling
trend through the rest of the week as clouds and moisture moderate
daytime heating.

Twc watches warnings advisories
Red flag warning from 10 am to 8 pm mst Friday for azz151-152.

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Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Davis-Monthan Air Force Base, AZ8 mi93 minSSW 510.00 miFair79°F16°F9%1005.9 hPa
Tucson, Tucson International Airport, AZ12 mi38 minSSW 1310.00 miFair82°F16°F8%1006.5 hPa
Tucson Ryan Field Airport, AZ17 mi2.8 hrsSW 810.00 miFair84°F14°F7%1009.5 hPa

Wind History from DMA (wind in knots)
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Last 24hrS5S5S8SW7S6E6E4SE6SE3S10S13W10
G19
W10W5
G18
W9W14W13
G24
SW15
G20
W8
G19
W11
G20
W10SW7S5SW9
G15
1 day agoSW4S4SE8SE9E6SE9SE7SE6E4SE4S3CalmNW4NW5W12
G21
NW14
G21
W12
G20
W6W12
G19
W8
G17
W14
G17
W12
G17
W7
G15
W5
2 days agoS3S6SE7E5SE10SE7SE7SE7SE7SE4CalmCalmSW4NW7N4N7
G18
N9
G15
N10
G20
NW10
G18
NW10
G20
N11N9N5Calm

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 (1,6,7,8)
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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.