Wednesday, August4, 2021
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Marine Weather and Tides
Ali Chuk, 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 5:57AMSunset 7:33PM Wednesday August 4, 2021 11:29 AM PDT (18:29 UTC) Moonrise 2:10AMMoonset 4:50PM Illumination 13% Phase: Waning Crescent; Moon at 26 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 Ali Chuk, AZ
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location: 31.3, -113.38     debug


Area Discussion for - Tucson, AZ
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FXUS65 KTWC 041633 AFDTWC

Area Forecast Discussion National Weather Service Tucson AZ 934 AM MST Wed Aug 4 2021

SYNOPSIS. Hot temperatures today from Tucson west and north as monsoon break continues. Thursday into the weekend will see a slow downward trend in temperatures along with an increase in rain and storm chances across much of southeast Arizona.

DISCUSSION. It's not looking good for thunderstorm activity today. Water vapor imagery paints a dry picture, as well as the morning sounding, which measured 1" of PW. This is in the 10th percentile of climatology when using a moving 31 day average. Convective allowing models are understandably quiet this afternoon, producing isolated weak storms at best for eastern Cochise County. Thus, the heat is on for much of the area and some locations will make a run at record high temperatures. The story should begin to shift tomorrow as the pattern adjusts. For the details on that and other days ahead, please see the previous discussion below.

AVIATION. Valid through 06/18Z. Generally SKC-FEW clouds 12k-16k ft MSL through the forecast period. Surface moisture is too minimal today for typical monsoon SHRA/TSRA development, though a few build-ups possible across the mountains/Sky Islands east of KTUS. SFC wind will generally remain less than 12 kts through the period with afternoon gusts due to daytime heating. Aviation discussion not updated for TAF amendments.

FIRE WEATHER. A down period for the monsoon continues today with dry conditions throughout the forecast period. A modest upswing in thunderstorm activity is expected starting Thursday and continuing through the weekend. Any thunderstorms that develop will be capable of producing strong, gusty and erratic winds along with locally heavy rainfall. RH values will remain well above critical thresholds the next 7 days. 20-foot winds will generally be less than 15 mph when not influenced by thunderstorms.

PREV DISCUSSION. The sky was clear across SE AZ early this morning with strong high pressure ridge over the desert SW. Hot early August day with Excessive Heat Warning in effect for most of Pima county, south-central and SE Pinal county and most of the Gila Valley in Graham county. A few locals will be near record highs for August 4th. Details in climate section below. No thunderstorms today across most of the forecast area. The exception is a very slight chance along the Intl border of Cochise county.

Tonight: Models suggesting an active evening across Sonora MX where thunderstorm outflows could push some low-level moisture north into the forecast area.

Thursday; The orientation of the upper ridge over the desert SW becomes more SW-NE thanks to an upper trof moving by well north of the area. Latest model/ensembles indicate that the best chances for afternoon storms will be across Santa Cruz county and over the mountains. With weak NE steering flow, some of these storms will move off the higher terrain into the lower elevations.

Friday: Elongated ridge axis over the area will keep best chances over the higher terrain and across Santa Cruz county under weak steering flow.

Weekend: Inverted trof moving across northern Mexico will enhance thunderstorm activity across Sonora with outflows sent north increasing low level moisture values across the area with Sunday looking to be the more active weekend day.

Early next week: Low-mid grade monsoon forecast.

High temperatures: Today will be the hottest day in the next 7 days as highs gradually cool as the work week closes and then be slightly below normal this weekend into early next week.

CLIMATE. Record or near record high temperatures today.

DATE Aug 04 FCST RCD/YR Ajo 113 115/1969 Picacho Peak 109 113/1995 Tucson Intl Airport 108 109/1994 Safford Ag Station 105 106/2009

TWC WATCHES/WARNINGS/ADVISORIES. Excessive Heat Warning from 11 AM this morning to 8 PM MST this evening for AZZ504-506-509.

Excessive Heat Warning until 8 PM MST this evening for AZZ501- 502-505.



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Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Yuma, Marine Corps Air Station, AZ114 mi32 minS 77.00 miFair102°F68°F33%1008.1 hPa

Link to 5 minute data for KNYL

Wind History from NYL (wind in knots)
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Last 24hrW7W6W8W833W8W8SW7W7SW5S3S3SE4S4CalmW4S8S7S8S8S13S9S7
1 day agoW7W6W5--W7W7W7W6W5SW6SW9--W6S5CalmCalmS4S5SW4S6S8SW6SW6W7
2 days agoNW6CalmS6CalmNW6CalmSW4W4S5S10S6W6SE7S4S4S3CalmCalmCalmCalmS7S9W5W7

Tide / Current Tables for Puerto Penasco, Sonora, Mexico
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Puerto Penasco
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Wed -- 02:09 AM MST     Moonrise
Wed -- 05:34 AM MST     0.62 meters Low Tide
Wed -- 05:52 AM MST     Sunrise
Wed -- 12:21 PM MST     4.20 meters High Tide
Wed -- 04:50 PM MST     Moonset
Wed -- 06:31 PM MST     1.33 meters Low Tide
Wed -- 07:26 PM MST     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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3.12.82.31.610.70.611.62.43.23.94.24.13.732.31.71.41.41.72.22.83.2

Tide / Current Tables for Puerto Penasco, Sonora, Mexico (3)
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Puerto Penasco
Click for Map
Wed -- 02:10 AM MST     Moonrise
Wed -- 05:39 AM MST     0.46 meters Low Tide
Wed -- 05:52 AM MST     Sunrise
Wed -- 12:26 PM MST     3.96 meters High Tide
Wed -- 04:51 PM MST     Moonset
Wed -- 06:40 PM MST     1.15 meters Low Tide
Wed -- 07:26 PM MST     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.82.521.50.90.50.50.81.42.12.93.63.93.93.52.92.21.61.21.21.41.92.52.9

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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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