Tuesday, February20, 2018 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 7:00AMSunset 6:16PM Tuesday February 20, 2018 8:31 AM MST (15:31 UTC) Moonrise 10:01AMMoonset 11:03PM Illumination 28% Phase: Waxing Crescent; Moon at 5 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 201014
afdtwc
area forecast discussion
national weather service tucson az
314 am mst Tue feb 20 2018

Synopsis As the cool air mass behind the cold front that moved
through last night continues to settle over the area, showers will
diminish this morning and skies will clear from the west through
the day. High temperatures will top out 13 to 20 degrees cooler
than average today. Cooler than average temperatures will
continue into the weekend with a chance for a few showers on
Friday.

Discussion Despite the best efforts of the high-res models to
get rid of the showers late last evening, they continue this
morning and looking at the low level water vapor imagery suggests
that it will continue for several more hours as it slowly eases to
the east. Just this last hour the drier low level air finally made
it to the tucson area so would expect showers in the immediate
vicinity to come to an end very soon. I adjusted pops through the
morning hours to slow up the tapering of the showers a bit as well
as increasing the could cover. I may have to extend them a bit
more across eastern areas, especially the whites and will keep an
eye on that. Speaking of the white mountains, opted to let the
winter weather advisory continue until 5 am as upslope flow
continues with accumulating precipitation noted on area gauges.

Otherwise, gradual clearing from the west later today as the cool
and dry air mass advects across the area. High temperatures will
be quite a bit cooler than yesterday and topping out well below
normal for a change. Actually, today's average temperature should
end up below normal for the first time since january 27th. With
the clearing skies along with the cool and dry air mass in place,
temperatures late tonight into Wednesday morning will be quite
cool with near or below freezing temperatures east and south of
tucson. In the immediate tucson area lows are expected to be near
or just above freezing for the metro area with a few outlying
areas dipping below freezing.

For Wednesday through Thursday a few upper level waves passing
through the base of the trough will enhance clouds at times and
bring a small chance of a shower or two near the new mexico border
and the white mountains. The more noticeable aspect for most will
be the continued cooler than average temperatures.

Friday a more significant shortwave will round the base of the
trough and the models are gradually converging on a similar
solution however the GFS remains the most aggressive. Based on
the continued trend toward this feature being real and fairly
significant I lowered temperatures a bit and raised pops a bit for
a somewhat larger area of showers and highs mostly in the 50s in
the valleys.

Saturday looks to be dry and continued cool then Sunday into
Monday temperatures jump up 5-10 degrees under mostly clear
skies.

Aviation Valid thru 21 12z.

Sct-bkn cloud layers with ceilings generally 4-8k ft agl. Isolated
to scattered valley -shra and mtn -shsn mainly to the south and east
of ktus this morning. Brief MVFR conditions possible in near -shra -
shsn. Sfc wind wly swly at 8-15 kts with a few gusts near 20 kts
into this evening. The strongest speeds will occur at
kdug kalk kfhu. Dry conditions at all terminals by late this
afternoon with skies clearing from west to east tonight into
Wednesday morning. Aviation discussion not updated for taf
amendments.

Fire weather Isolated to scattered valley rain and mountain snow
showers will continue this morning east of tucson. Dry conditions
and well below normal temperatures will occur this afternoon into
Sunday morning, except for a slight chance of showers Friday and
Friday night. 20-ft west to southwest winds will occur through
Thursday and generally remain less than 15 mph. Slightly elevated
west or southwest winds may then occur Friday with less wind
occurring this weekend.

Twc watches warnings advisories
Winter weather advisory until 5 am mst early this morning for
azz510.

Public... Cerniglia
aviation... .Carpenter
fire weather... Carpenter
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 mi42 minESE 510.00 miFair43°F37°F81%1017.6 hPa
Davis-Monthan Air Force Base, AZ18 mi36 minSSE 710.00 miOvercast40°F34°F80%1015.5 hPa
Tucson, Tucson International Airport, AZ19 mi39 minS 910.00 miOvercast41°F34°F76%1016 hPa

Wind History from DMA (wind in knots)
9
AM
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
Last 24hrS4SW14SW17SW22
G31
S19
G28
S19
G28
SW18
G26
SW18
G28
SW25
G28
SW18
G25
SW23
G32
NW18
G23
N9NW10W11CalmNW5NW8NW8W6CalmS6S7SE7
1 day agoCalmCalmCalmCalmSW3SW9W7--W9W12W8SW6W3W3S3SE5S8S8CalmSE3S5S4SW7W9
2 days agoCalmCalmCalmSE5SE6S5S3N3NW7NW8NW7NW6W5CalmS3SE3SE4S4CalmE5CalmE3SE5Calm

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 (10,2,3,4)
      (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.