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 5:32AM||Sunset 7:51PM||Saturday May 30, 2020 6:23 PM PDT (01:23 UTC)||Moonrise 1:12PM||Moonset 1:43AM||Illumination 65%|
7 Day Forecast for Marine Location Near Desert Center, CAHourly EDIT Help
Area Discussion for - Phoenix, AZ  (on/off)  Help NOTE: mouseover dotted underlined text for definition
FXUS65 KPSR 302056 AFDPSR
Area Forecast Discussion National Weather Service Phoenix AZ 156 PM MST Sat May 30 2020
SYNOPSIS. Strong high pressure persisting over the region will lead to temperatures around 10 degrees above normal across south-central Arizona. Slightly cooler, but still above average temperatures are likely early next week as an area of low pressure slowly moves towards the west coast. Increasing moisture may also bring a slight chance of thunderstorms to southern Gila County through at least the middle of next week.
DISCUSSION. Current visible satellite shows thunderstorm activity increasing south of Tucson and over parts of Northern Arizona. Activity is still quiet for us but latest hi-res guidance and satellite trends suggest storms may develop over Gila County within the next couple of hours. Otherwise, temperatures across the Valley are already in the 104-107 degree range with a few more hours of peak heating to go. An Excessive Heat Warning remains in effect for south-central Arizona, including Phoenix.
Farther west, atmospheric heights are falling as a low pressure system slowly moves onto the California coast. Heights will continue to fall today and tomorrow ultimately leading to a slight reprieve from the recent excessive temperatures. Afternoon highs today will be 5-10 degrees cooler than yesterday across southeast California and western Arizona but the heat will linger through tomorrow in south-central Arizona. This afternoon will be a bit on the breezy side for southeast California and western Arizona with some gusts approaching 30 mph.
Otherwise, lingering moisture will keep chances for isolated thunderstorms over the higher terrain across the eastern half of Arizona. For our forecast area, the mountains east of Phoenix will have generally 10-20% chance for storms on any given afternoon over the next several days. Storms are not expected to be prolific rain producers, but may produce gusty winds, outflows, and lightning strikes. Distant storms may also send long traveling outflows and a few may reach the lower desert areas of Pinal and Maricopa Counties. Convection potential over the lower desert, including the Phoenix area, is limited given the overall dry atmospheric profile. Ensemble guidance remains consistent showing a Pacific trough deepening off the West Coast late next week. The ensemble spread on how the trough will progress is varied enough to create uncertainty in the forecast late next week. For the most part, trends still favor a gradual cool down through at least the middle of next week with afternoon highs nearing seasonal normals by Thursday or Friday.
AVIATION. Updated at 1800Z.
South-Central Arizona including KPHX, KIWA, KSDL, and KDVT:
Light winds this morning will continue to become variable at times before southwesterly winds take hold this afternoon. Afternoon breeziness with gusts upwards of 18 kts will be possible as daytime mixing increases. More thunderstorm development is expected this afternoon mainly to the south and east of the metro over the higher terrain. Can't rule out an outflow moving into the metro early this evening, but confidence is too low to mention in the KPHX, KSDL, and KDVT TAFs at this time. Have added an outflow in the KIWA TAF since there is higher confidence of an outflow reaching the site. Latest CAMs and HREF guidance indicate an outflow from the south/southeast reaching KIWA around 01Z-02Z with speeds upwards of 10-15 kts possible. The magnitude, timing, and direction of outflows are subject to change in later updates. Otherwise, FEW-SCT mid and high level clouds aoa 12 kft will be possible throughout the TAF period.
Southeast California/Southwest Arizona including KIPL and KBLH:
Winds at KIPL will favor a westerly component through the next 24 hours, while winds at KBLH will favor a south to southwesterly direction. Afternoon breeziness will be possible at both sites, with gusts upwards of 20-25 kts possible at times. Otherwise, mostly clear skies will persist, aside from some passing high clouds.
FIRE WEATHER. Tuesday through Saturday: Moisture may remain ample enough for isolated afternoon thunderstorms nearly every afternoon and evening across much of eastern Arizona, including Gila County. Storms farther west into the lower desert area around Phoenix is less likely. Storms are not likely to produce much rain, but may create strong gusty winds, outflows, and lightning strikes. Otherwise, winds are likely to follow typical diurnal directional trends with some afternoon breeziness. Minimum humidity values will drop into the 10-20% range with overnight recoveries rising into the 20-40% range. Even though these elements remain well below critical thresholds, the fire danger will remain heightened.
Date Phoenix Yuma ---- ------- ---- May 30 114 in 1910 120 in 1910
May 31 109 in 2012 113 in 2012
SPOTTER INFORMATION STATEMENT. Spotters should follow standard reporting procedures.
PSR WATCHES/WARNINGS/ADVISORIES. AZ . Excessive Heat Warning until 8 PM MST Sunday for AZZ534-537>556- 559>561.
CA . None.
DISCUSSION . AD AVIATION . Smith FIRE WEATHER . AD/CB CLIMATE . Hodges/MO
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.
|Palm Springs, Jacqueline Cochran Regional Airport, CA||27 mi||31 min||NW 16 G 24||10.00 mi||Fair||94°F||37°F||14%||1004.6 hPa|
Link to 5 minute data for KTRM
Wind History from TRM (wind in knots)
|1 day ago||S||Calm||NE||SE||NW||NE||Calm||N||Calm||Calm||N||SW||Calm||Calm||NE||SE||SE||SE||S||SE||SE||SE||SE|
|2 days ago||S||SW||N||N||W||Calm||Calm||Calm||Calm||Calm||S||Calm||Calm||E||SE||SE||SE||SE||SE|
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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 Phoenix, AZ (21,6,7,8)(on/off)  Help
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