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 5:22AM||Sunset 7:37PM||Sunday July 5, 2020 1:06 PM MST (20:06 UTC)||Moonrise 8:25PM||Moonset 5:43AM||Illumination 100%|
7 Day Forecast for Marine Location Near Rillito, AZHourly EDIT Help
Area Discussion for - Tucson, AZ  (on/off)  Help NOTE: mouseover dotted underlined text for definition
FXUS65 KTWC 051558 AFDTWC
Area Forecast Discussion National Weather Service Tucson AZ 858 AM MST Sun Jul 5 2020
SYNOPSIS. High pressure will keep temperatures several degrees above average this week. We'll have just enough moisture for a few afternoon showers or thunderstorms near the international border.
DISCUSSION. The deeper moisture remains south of our area with just enough in place across SE AZ for a few buildups near the higher terrain near the border with Mexico. 12Z KTWC sounding showed precipitable water at 1 inch with a strong subsidence inversion near 500mb, and limited convective potential even with afternoon heating. No updates. Please see the previous discussion below for additional details.
AVIATION. Valid through 06/18Z. Isolated -TSRA near international border in the afternoon hours, including KOLS, KFHU and KDUG. FEW-BKN clouds 12k-15k ft MSL. Surface wind variable in direction generally under 12 kts, gusty in the afternoon. Aviation discussion not updated for TAF amendments.
FIRE WEATHER. Expect isolated thunderstorms southeast-to-south of Tucson Tuesday, Wednesday, and next Friday and Saturday during the afternoon and evening hours. Otherwise, dry conditions to prevail during this forecast period. Daytime minimum humidity mostly ranging from 15-30 percent with good overnight recoveries. Aside from brief gusty thunderstorm outflows, 20-foot will be mainly terrain driven at less than 15 mph.
PREV DISCUSSION. /issued 216 AM MST Sun Jul 5 2020/ A clear down period for the monsoon is expected the next couple of days as the atmosphere just remains a bit too dry with lower level west to northwest continuing to advect in drier air. This will keep build-ups limited mainly to areas along the International border and along the White Mountains. With the drier air and mid/upper high near the AZ/NM border through Monday, temperatures will continue to be several degrees above normal.
By Tuesday and Wednesday, a modest increase in moisture is expected due to a Gulf surge, however the surge will remain fairly shallow. While PWAT values increase to around 1 to 1.4 inches from Tucson westward and that is typically enough for a decent amount of convection, given the depth of mid/upper level drier air and subsidence with the high pressure aloft nearby, it will tough to get much more than isolated shower and thunderstorm activity and that will occur primarily to the south and east of Tucson. With the uptick in moisture, temperatures may briefly drop to near normal levels during this period.
Starting on Thursday, confidence is increasing that the mid/upper level high will be intensifying with increasing heights heading into next weekend. However, there are still some differences in the guidance regarding the position of the high and whether it is closer to us or placed a little bit further east in New Mexico. Regardless, still a fairly quiet period with a slight chance of showers and thunderstorms returning mainly south of Tucson Friday and Saturday as temperatures warm back up by a few degrees.
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||14 mi||81 min||N 0||10.00 mi||Fair||99°F||46°F||17%||1014.9 hPa|
|Davis-Monthan Air Force Base, AZ||18 mi||68 min||NW 5||10.00 mi||Fair||99°F||49°F||19%||1009.6 hPa|
|Tucson, Tucson International Airport, AZ||19 mi||73 min||W 9||10.00 mi||Fair||100°F||48°F||17%||1009.5 hPa|
Link to 5 minute data for KRYN
Wind History from RYN (wind in knots)
|1 day ago||W||E||W||NW||N||NW||Calm||Calm||W||NW||SW||Calm||W||W|
|2 days ago||E||E||E||SE|
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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 (16,3,4,5)(on/off)  Help
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