Marine Weather and Tides
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.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen
|Sunrise 7:10AM||Sunset 5:20PM||Saturday December 7, 2019 4:45 PM MST (23:45 UTC)||Moonrise 2:47PM||Moonset 2:45AM||Illumination 84%|
7 Day Forecast for Marine Location Near Tucson Estates CDP, AZHourly EDIT Help
Area Discussion for - Tucson, AZ  (on/off)  Help NOTE: mouseover dotted underlined text for definition
FXUS65 KTWC 072151 AFDTWC
Area Forecast Discussion National Weather Service Tucson AZ 251 PM MST Sat Dec 7 2019
SYNOPSIS. A Pacific weather system will bring increasing rainfall chances tonight followed by periods of valley rain and higher elevation mountain snow showers Sunday into Monday. Much cooler temperatures will also occur. Expect dry conditions with a warming trend next Tuesday into Friday.
DISCUSSION. Increasing clouds today with moisture streaming in from the west ahead of a Pacific storm system digging down the west coast. Precipitable water was around 3/4 of an inch on the morning sounding. It should peak just under 1 inch over the next 24 hours before slowly receding as the dry slot wrapping into the base of the low shifts overhead.
Shower chances increasing tonight, relying somewhat on orographics as the westerly flow increases. Generally lighter rainfall amounts in valleys overnight into Sunday. 1/2 to 2/3 of an inch in mountains as rain with snow levels still too high Sunday. As the storm system drops into Arizona Monday, snow levels will fall to around 8000 feet early Monday morning, to 7000 feet Monday afternoon behind the associated (weakening) frontal passage. Something like 2 to 5 inches of snow in the mountains above 7500 feet with 6 or 7 inches possible in one or two spots at highest mountain peaks above 8500-9000 feet.
Clearing from the west late Monday and Monday night. Decent cold air advection knocking temperatures back to well below average Monday. With the clearing Monday night, Tuesday morning should end up chilly with another hard freeze in colder eastern and southern valleys. A brief freeze possible in outlying areas around Tucson Metro and some foothills locations.
Dry with a warming trend the rest of the week, but a weakness in the flow will probably keep heights from supporting anything above average until around the end of the week.
AVIATION. Valid through 09/00Z. BKN-OVC cirrus clouds above 20k ft MSL today becoming SCT-BKN clouds 9k-13k ft MSL this evening into Sunday morning. ISOLD -SHRA developing west of KTUS this evening, then SCT -SHRA later tonight/Sunday. Winds SWLY to NWLY in the afternoon through the evening at mainly less than 10 kts. Becoming SLY overnight into Sunday Aviation discussion not updated for TAF amendments.
FIRE WEATHER. Minimal fire weather concerns. A weather system is expected to impact the area starting late tonight through Monday night with a chance of valley rain and mountain snow, particularly across the higher elevations. Dry conditions return Tuesday morning and continue through the end of the work week. 20-ft winds will generally remain less than 15 mph through the forecast period.
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||6 mi||60 min||WNW 4||10.00 mi||Fair||70°F||44°F||40%||1020 hPa|
|Tucson, Tucson International Airport, AZ||16 mi||52 min||NNW 7||10.00 mi||Fair||72°F||41°F||33%||1017 hPa|
|Davis-Monthan Air Force Base, AZ||18 mi||1.8 hrs||NW 4||10.00 mi||A Few Clouds||72°F||40°F||32%||1016.9 hPa|
Link to 5 minute data for KTUS
Wind History from TUS (wind in knots)
|1 day ago||NW||N||N||W||S||S||S||SE||SE||SE||SE||SE||SE||S||SE||S||S||S||S||SE||Calm|
|2 days ago||SW||SW||SW|
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GEOS 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 (18,4,5,8)(on/off)  Help
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