Marine Weather and Tides
5/20/2018 -- NOAA is having problems with the data feed that I use to draw the graphs. They are aware of the issue and working to resolve it. Sometimes changing the location by about a mile will give a correct graph. 3/3/2018 - There is a new GOES Satellite for the east coast that required rewriting that part of the code. Please report any issues.
|Sunrise 5:19AM||Sunset 7:21PM||Tuesday May 22, 2018 12:21 PM MST (19:21 UTC)||Moonrise 12:48PM||Moonset 1:20AM||Illumination 54%|
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7 Day Forecast for Marine Location Near South Tucson, AZHourly EDIT Help
Area Discussion for - Tucson, AZ  (on/off)  Help NOTE: mouseover dotted underlined text for definition
|Fxus65 ktwc 221821|
area forecast discussion
national weather service tucson az
issued by national weather service phoenix az
1120 am mst Tue may 22 2018
Dry conditions through the upcoming holiday weekend. Gusty winds
will occur today and should return again this weekend as a couple of
low pressure systems move north of the area. High temperatures will
warm above seasonal normals later this week and continue into the
An upper level low centered over southern nevada this morning is
currently bringing clouds and showers to the great basin along
with isolated thunderstorms. Just to the south, the desert sw
sits under very dry southwesterly flow where mostly clear skies
are being observed. In response to this low pressure system,
breezy southwesterly winds will again develop over our CWA this
afternoon as daytime heating mixes higher momentum air down to the
surface. Gusts are forecast to be of similar magnitude to what
was observed on Monday, albeit slightly weaker, ranging from 20 to
30 mph in and around tucson today. Given the dry and breezy
conditions across our cwa, a red flag warning remains in effect
from noon to 7 pm mst today for the white mountains.
In addition to the winds, modest cooling from Monday's
temperatures is expected this afternoon as cooler air from the
aforementioned low pressure system works its way into our area.
Looking at the latest 12z sounding, 850 mb temperatures have
cooled roughly 2 f over 24 hours ago while surface temperatures
are reporting similar to slightly cooler conditions. Everything|
considered, the forecast looks on track and no changes have been
Aviation Valid through 23 18z.
Under clear skies, gusty ssw winds will be the main aviation
concern. Gusts nearing 25-30kt will prevail through sunset, then
weaken later this evening. Directional headings this afternoon will
be somewhat more due south than is typical. The usual light and
variable drainage wind will settle in overnight. Aviation discussion
not updated for TAF amendments.
Fire weather A red flag warning is in effect from noon to 7 pm
mst today for the northern portions of fire weather zone 153; or,
more specifically for the alpine district. The combination of strong
and gusty south to southwest winds, low relative humidity, and a
very high fire danger will create critical fire conditions.
Otherwise, dry conditions will continue into early next week.
Although gusty southwest winds will occur this afternoon elsewhere
across southeast arizona, wind speeds are not expected to meet red
flag criteria. 20-foot winds will generally be less than 15 mph
Wednesday through Friday. Gusty afternoon winds should return this
weekend into early next week as another low pressure system moves
north of the area.
Twc watches warnings advisories
Red flag warning from noon today to 7 pm mst this evening for
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Weather Reporting StationsEDIT (on/off)  Help NOTE: Click on distance to see the station location on a map
Airport ReportsEDIT (on/off)  Help Click EDIT to display multiple airports
|Davis-Monthan Air Force Base, AZ||5 mi||84 min||SW 6||10.00 mi||Fair||85°F||22°F||10%||1007.6 hPa|
|Tucson, Tucson International Airport, AZ||7 mi||29 min||SSW 8||10.00 mi||Fair||87°F||19°F||8%||1006.8 hPa|
|Tucson Ryan Field Airport, AZ||12 mi||37 min||SW 14 G 19||10.00 mi||Fair||88°F||21°F||9%||1011.5 hPa|
Wind History from DMA (wind in knots)
|1 day ago||SE||SW||W||SW||SW||SW|
|2 days ago||W||W||W|
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GOES Local Image of Southwest 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 Tucson, AZ (15,3,4,5)(on/off)  Help
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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.