Thursday, July29, 2021
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Marine Weather and Tides
Picture Rocks, 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 5:36AMSunset 7:26PM Thursday July 29, 2021 4:52 PM MST (23:52 UTC) Moonrise 11:10PMMoonset 11:09AM Illumination 69% Phase: Waning Gibbous; Moon at 20 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 Picture Rocks, AZ
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location: 32.3, -111.21     debug


Area Discussion for - Tucson, AZ
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FXUS65 KTWC 292206 AFDTWC

Area Forecast Discussion National Weather Service Tucson AZ 304 PM MST Thu Jul 29 2021

SYNOPSIS. Scattered to perhaps numerous storms are expected this evening into the weekend. High temperatures will run near to a few degrees below seasonal normals.

DISCUSSION. The circulation associated with the MCV which formed over southern AZ was helping focus storms across far western Pima and Yuma counties early this afternoon. To complicate matters, an upper low centered over northern Mexico will continue to track farther northwest and weaken over the next 36 hours. Difluence aloft ahead of the low should provide enough support for additional isolated to scattered showers and thunderstorms through tonight. Latest models depicted the upper low centered over Sonora, Mexico just south of the International Border by Friday morning. Per collaboration call with WPC and surrounding offices, will post a Flash Flood Watch for central and western Pima county Friday afternoon through late Friday night. Thereafter, models showed the upper low lifting northward Friday night and mixing with a shortwave trough approaching the California coast. This will shift the widespread flash flood threat to areas mainly north and west of SE AZ. That said, the chance of isolated to scattered showers and thunderstorms will continue through the weekend with signs of less activity early next week. High temperatures will remain near or slightly below seasonal normals.

AVIATION. Valid through 31/00Z. Expect SCT-BKN clouds 8k-12k ft AGL for most of the period with some higher clouds at times as well from storm anvils. This afternoon and evening scattered SHRA/TSRA will be possible area wide with some activity continuing through the overnight hours but with reduced coverage. The expect another round of storms Friday afternoon. Storm impacts include strong erratic wind gusts in excess of 30 knots, heavy downpours, lowered vsbys, and CIGS dropping to 5k-8k feet. Outside of TSRA outflows winds will be below 10 kts. Aviation discussion not updated for TAF amendments.

FIRE WEATHER. More widespread storm activity is expected today with development already beginning this afternoon and lasting into tonight. Another active day is anticipated for Friday before a downward trend in storm activity begins going into early next week when storm chances will mainly be from Tucson eastward. Storms will likely produce erratic, gusty winds and locally heavy downpours. RH values remain well above critical thresholds through early next week. Temps will remain near to slightly below normal. 20-foot winds will generally be less than 15 mph when not influenced by thunderstorms.

TWC WATCHES/WARNINGS/ADVISORIES. Flash Flood Watch from Friday afternoon through late Friday night for AZZ501-502.



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Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Tucson Ryan Field Airport, AZ11 mi68 minN 010.00 miFair91°F63°F38%1014.9 hPa
Davis-Monthan Air Force Base, AZ19 mi55 minNNW 510.00 miFair96°F56°F27%1008.2 hPa
Tucson, Tucson International Airport, AZ19 mi60 minN 010.00 miFair95°F55°F26%1007.8 hPa

Link to 5 minute data for KTUS

Wind History from TUS (wind in knots)
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Last 24hrW7W5W5W4SW3S6S11S6SE8SE14SE7E4SE7SE4SE10
G19
SE103S7E6SE4S5S6CalmCalm
1 day agoE8NE3SE6SW4S7SE5SE6E3S7SE8S5SE5SE6S3SE8SE8SE65SE43CalmNW7W9W9
2 days ago4NW5NW4NW3NW5CalmCalmS3CalmSE6SE4E5S3S5SE7SE5S4S5CalmW53CalmNW5SW19
G39

Tide / Current Tables for
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Tide / Current Tables for
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Weather Map
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GEOS Local Image of Southwest    EDIT
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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