Friday, August18, 2017 L-36.com


Marine Weather and Tides
Rillito, AZ

Version 3.4
What's New / NOTES
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
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 5:50AMSunset 7:06PM Friday August 18, 2017 9:28 AM MST (16:28 UTC) Moonrise 2:30AMMoonset 4:45PM Illumination 14% Phase: Waning Crescent; Moon at 26 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
    EDIT      (on/off)   Help
7 Day Forecast for Marine Location Near Rillito, AZ
   Hourly   EDIT   Help
location: 32.34, -111.15     debug


Area Discussion for - Tucson, AZ
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus65 ktwc 181000
afdtwc
area forecast discussion
national weather service tucson az
300 am mst Fri aug 18 2017

Synopsis The monsoon retreated to mexico earlier this week,
but it's on the way back. A moisture increase over the next 72
hours that will bring the thunderstorms back over the weekend into
next week.

Discussion Our precipitable water plummeted to 1 2 inch
yesterday afternoon, less than half of what we normally see in mid
august. Surface dew points are no better with values in the 30s
and 40s across the area. There is hope though.

That monster complex merger over sinaloa Wednesday night helped
fire a lesser convective complex further north over southern and
central sonora yesterday afternoon. Precipitable water values
have pushed up to near 1.7 inches in central sonora, and the
impulse supporting this activity will help organize the storms
that will then push convection to near the border this evening.

Initially, the deepest moisture is shaping up for chihuahua and
new mexico Saturday. Sunday and Monday will see that favorable h7
theta-e axis shift deeper into our area as a high center
reconsolidates over texas downstream, and a weak low sags into
california upstream. We should see decent thunderstorm coverage
Sunday afternoon into Monday evening or Tuesday afternoon.

After that it gets tricky. The moisture will still be here and or
nearby, but features become more subtle. The main factor is the
weakness in the flow upstream and it's positioning. If it's too
close then we likely wrap in some dry air under it, with the
deepest fetch of moisture through new mexico. For now the best we
can do is just throw in a chance of mainly afternoon and evening
thunderstorms, something close to climatology.

Aviation Valid thru 19 12z.

Scattered to broken cirrus from mexico, and some CU around 8k-12k ft
agl especially east of ktus this afternoon and evening. A few -tsra
may occur near the international new mexico borders southeast of
ktus tonight. However, expected occurrence of -tsra -shra at kdug is
too low to include in the kdug taf. Expect normal diurnal wind
trends less than 12 kts into early Saturday morning. Aviation
discussion not updated for TAF amendments.

Fire weather Dry conditions today followed by a slight chance of
thunderstorms across far southeast sections tonight. Increased
moisture will then bring scattered thunderstorms especially east-to-
south of tucson Saturday into Tuesday. Somewhat less coverage of
thunderstorms next Wednesday and Thursday, but still enough moisture
for isolated to scattered thunderstorms mainly east of tucson. 20-
foot winds will mainly be terrain driven less than 15 mph aside from
thunderstorm gusts. The exception appears to be Saturday when an
easterly component should prevail.

Twc watches warnings advisories None.

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


Weather Reporting Stations
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Tucson Ryan Field Airport, AZ14 mi43 minENE 310.00 miFair82°F44°F26%1018.6 hPa
Davis-Monthan Air Force Base, AZ18 mi90 minSE 610.00 miFair78°F44°F31%1013.8 hPa
Tucson, Tucson International Airport, AZ19 mi4.6 hrsSSE 510.00 miFair70°F46°F43%1017.6 hPa

Wind History from DMA (wind in knots)
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
Last 24hrCalmCalmNE3NE5CalmN6SE3CalmCalmNE5N4E4CalmS5S3SE4SE8CalmSE5SE5SE6SE7SE6SE4
1 day agoS5SW7S9
G15
W5W3SW6W7W4S8SW6S6SW6CalmSE5SE6SE8SE3SE3SE7E7SE5SE6CalmCalm
2 days agoS9S10S7W7W8SW11
G16
SW9W11W7SW7W7SW3SE8CalmS6SE6SE7CalmE3E3SE9SE6SE5SE6

Tide / Current Tables for
   EDIT   RT Ports Option   Weekend mode (on/off)   (on/off)   Help
Tide / Current Tables for
   EDIT      (on/off)   Help
Weather Map and Satellite Images
       (on/off)   Help
Weather Map
wmap_P
IR Satellite Image from GEOS
west_satellite

GOES Local Image of Southwest    EDIT
Geos

Wind Forecast for Tucson, AZ (12,3,4,5)
      (on/off)   Help

Ground Weather Radar Station Tucson, AZ
   (on/off)   Help
weather_mapweather_map weather_map

Ad by Google

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.