Monday, September27, 2021
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Marine Weather and Tides
South Tucson, AZ

Version 3.4
NOTICE
3/30/2021 -- ANZ330 has been split into ANZ331 and ANZ332. Click EDIT in Marine Forecast and select your new zone.
1/26/2021 -- The West Coast Satellite images havd been updated. They now use GEOS-17.
1/1/2021 -- The 7 day forecast are now working well. Thank you NOAA for your support.

Sunrise 6:14AMSunset 6:14PM Monday September 27, 2021 8:56 PM MST (03:56 UTC) Moonrise 10:28PMMoonset 12:23PM Illumination 58% Phase: Waning Gibbous; Moon at 21 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
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7 Day Forecast for Marine Location Near South Tucson, AZ
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location: 32.22, -110.96     debug


Area Discussion for - Tucson, AZ
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FXUS65 KTWC 272128 AFDTWC

Area Forecast Discussion National Weather Service Tucson AZ 228 PM MST Mon Sep 27 2021

SYNOPSIS. A few showers will linger across parts of southern Arizona this evening into Tuesday as a result of the slow departure of the weekend storm system. Another storm will develop over the region late Wednesday through Thursday for another chance of showers and thunderstorms. Afternoon temperatures will remain cooler than average this week thanks to these storm systems.

DISCUSSION. Scattered showers have developed this afternoon from Tucson south and east with another batch of really light showers drifting south across western Pima county. All this activity is rotating around the slowly departing low that is currently centered over west-central NM. Much of this activity will diminish after sunset with clouds decreasing. The exception will be late tonight for areas north and Northeast of Tucson where a vort lobe rotating SE around backside of the low is expected to produce some clouds and showers across Pinal/Graham and Greenlee counties late tonight and early Tuesday morning.

By Tuesday the upper low is moving into Wyoming however there is enough lingering instability and moisture that, despite the distance from the low and weak shortwave ridging, some showers are still possible north and east of Tucson due to daytime heating. They should be light and mainly confined to Graham and Greenlee counties. Temperatures will warm several degrees but still peak around 5 degrees cooler than average.

The next system headed our way will be a longwave trough that will move over the region Wednesday. This trough is expected to split Wednesday night into Thursday with a low pressure center developing over eastern Arizona/western New Mexico Thursday. This will bring another round of scattered showers and thunderstorms to southern Arizona, mainly from Tucson eastward. Over the last three days there has been a slight eastward trend to this low development and if that trend continues the precipitation forecast will have to be shunted a bit further east. Elevating our position in the wettest monsoon standing depends on this storm producing in time. We will see.

Friday into the weekend the low moves off to the east leaving our area under a split zonal flow which will result in dry conditions with near normal temperatures. A bit of potential for some precipitation again early next week in the model world and that is also highlighted in the Above Normal precipitation outlook for AZ in the 6-10 and 8-14 day outlooks.

AVIATION. Valid through 29/00Z. SCT-BKN clouds at 10k-13k ft MSL thru 28/06Z, then slowly decreasing clouds south of a KTUS-KSAD line. ISOLD-SCT -SHRA/-TSRA mainly east of a KCGZ to KTUS to KOLS line thru the forecast period. SFC wind generally less than 12 kts favoring a SWLY/WLY direction in the afternoon/evening hours and variable in direction at other times. Aviation not updated for TAF amendments.

FIRE WEATHER. We should have isolated showers and very isolated thunderstorms through Tuesday. Then showers and storms will increase in coverage again Wednesday night through Thursday before drying out over the weekend. Temperatures will remain below normal through Friday then rise to near normal over the weekend with elevated humidity levels throughout. Winds will remain unexceptional and typical for the time of year.

TWC WATCHES/WARNINGS/ADVISORIES. None.

Public . Cerniglia Aviation . Rasmussen Fire Weather . Rasmussen

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Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Davis-Monthan Air Force Base, AZ5 mi59 minSW 57.00 miMostly Cloudy75°F54°F47%1015.2 hPa
Tucson, Tucson International Airport, AZ7 mi64 minSW 510.00 miFair74°F57°F56%1011.8 hPa
Tucson Ryan Field Airport, AZ12 mi72 minN 010.00 miA Few Clouds75°F55°F50%1014.2 hPa

Link to 5 minute data for KDMA

Wind History from DMA (wind in knots)
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Last 24hrS9SE7S6SE7S4S5SE5S8S4SE3S6S5SE5SE3CalmW3SW10NE3NW6CalmSW7S6S5SW5
1 day agoE7E3SE6N5CalmCalmCalmS3SW4W3SE10--E5CalmNW5W3NW8NW11NW8W9W5S9S4SE7
2 days agoW5CalmSE5S4SE4CalmS3CalmSE5SE4CalmSE3SE4E7CalmN5N4NW9N5SW6SW8SW13
G19
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Tide / Current Tables for
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NOTE: This section has been updated as of 1/26/2021. If the image you are expecting is not showing, please let me know. You may use the EDIT function to update your location.
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