Marine Weather and Tides
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
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.
|Sunrise 7:20AM||Sunset 5:55PM||Tuesday January 28, 2020 6:10 PM MST (01:10 UTC)||Moonrise 9:50AM||Moonset 9:32PM||Illumination 16%|
7 Day Forecast for Marine Location Near Picture Rocks, AZHourly EDIT Help
Area Discussion for - Tucson, AZ  (on/off)  Help NOTE: mouseover dotted underlined text for definition
FXUS65 KTWC 282229 AFDTWC
Area Forecast Discussion National Weather Service Tucson AZ 329 PM MST Tue Jan 28 2020
SYNOPSIS. Another weather system will bring a few mainly mountain showers to the area Wednesday afternoon into Thursday. Gusty winds at times with several more degrees of cooling. High pressure will bring dry conditions and another jump in temperatures by this weekend.
DISCUSSION. After a very pleasant afternoon across southeastern Arizona, a shortwave impulse will quickly drop south from the Great Basin and into southern Arizona through Wednesday. This system appears to briefly close off at 500mb as it crosses into Sonora, Mexico. With the continental trajectory and lack of moisture advection, this system will be on the dry side. Nonetheless, a few hundredths to isolated areas around 1/10 of an inch of rain are possible. Could see slightly higher amounts across the mountains, especially north and east of Tucson. Currently not in the forecast, but don't be surprised if there are a few rumbles of thunder as marginal instability and steep lapse rates could result in some very isolated thunderstorms briefly during the afternoon and early evening. If trends continue, thunder could be added to the forecast tonight or tomorrow morning. This system will have enough cold air available to drop snow levels to around 5000-5500ft, however not expecting any accumulation at these levels. A couple inches of snow will be possible above 7000ft. Showers should begin to develop across southeastern Arizona by Wednesday afternoon and continue off and on through Thursday morning. In the wake of the system, Thursday will be cooler with temperatures in the 50s/60s across the area.
Another system will quickly slide south into the region with a couple showers possible near the AZ/NM border on Friday afternoon. Then a dry northerly flow will take hold until heights build with a strengthening ridge of high pressure sliding into the western US. The axis of the ridge will extend across central Cali and into the Great basin, with us situated between a retrograding closed low over Baja and the ridge to the north. This will allow for quite a warmup, but the best height rises will remain over the Great Basin. Sunday appears to be the warmest day with highs into at least the middle 70s for lower deserts and middle to upper 60s for areas south and east of Tucson.
By Monday, GEFS/ECMWF ensembles are pointing to a significant pattern change as a deep and cold trough is forecast to develop and move east across the Great Basin. It is too early to tell the exact track and southern extent of the system, but a pattern change is possible with much cooler weather and a chance for precipitation.
AVIATION. Valid through 30/00Z. SKC area wide until FEW-SCT clouds above 15k MSL approach late overnight. Isolated -SHRA develop tomorrow afternoon east of KTUS with lowering cloud bases around precipitation. Surface winds are currently SWLY-NWLY and less than 10 kts, becoming variable at night. Winds then strengthen tomorrow afternoon, mainly along the International Border WLY-NWLY 10-15 kts with gusts to 25 kts. Aviation discussion not updated for TAF amendments.
FIRE WEATHER. An approaching weather system will skim the region tomorrow, primarily affecting areas east of Tucson. This brings generally light amounts of valley rain and mountain snow. Conditions dry out by daybreak Thursday, remaining dry until the following system arrives early next week with another chance for precipitation. This second system also looks much cooler. Southwesterly winds become rather breezy this upcoming Monday, reaching 15-20 mph across a large portion of the area.
TWC WATCHES/WARNINGS/ADVISORIES. None.
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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. Follow links for more data.
|Tucson Ryan Field Airport, AZ||11 mi||86 min||NNW 8||10.00 mi||Fair||64°F||21°F||19%||1019 hPa|
|Davis-Monthan Air Force Base, AZ||19 mi||73 min||WNW 6||10.00 mi||Fair||63°F||23°F||22%||1016.5 hPa|
|Tucson, Tucson International Airport, AZ||19 mi||78 min||N 9||10.00 mi||Fair||64°F||19°F||18%||1016.9 hPa|
Link to 5 minute data for KRYN
Wind History from RYN (wind in knots)
|1 day ago||NW||S||Calm||E||Calm||W||W||NW||NW|
|2 days ago||NW||W||E||SE||SE||E||SW||SE||Calm||Calm||NW||W||NW||NW||NW |
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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.
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Other links: Northern Pacific Contential US Full GOES-East
Wind Forecast for Tucson, AZ (20,4,5,8)(on/off)  Help
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