Wednesday, August21, 2019

Marine Weather and Tides
Utting, AZ

Version 3.4
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at Allen

Sunrise 6:01AMSunset 7:19PM Wednesday August 21, 2019 1:30 AM MST (08:30 UTC) Moonrise 10:52PMMoonset 11:26AM Illumination 68% 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 Utting, AZ
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location: 33.95, -113.87     debug

Area Discussion for - Phoenix, AZ
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Fxus65 kpsr 210510
area forecast discussion
national weather service phoenix az
1010 pm mst Tue aug 20 2019

Update Updated aviation discussion.

Another excessive heat episode with daily record
high temperatures is expected on Wednesday across southwestern and
south-central arizona and southeast california. Thunderstorm
activity will be very limited on Wednesday due to the persistence
of a dry air mass. Moisture will return by Thursday beginning a
gradual cooling trend and bringing isolated thunderstorms back
into the forecast for south central arizona during the second half
of this week, with the best chances on Friday and Saturday.

A very warm and dry air mass is in place across the state, as
evidenced by the limited cumulus development across arizona this
afternoon on visible satellite imagery. The observed 850-mb
temperature at phoenix was close to record values per the spc
sounding climatology, at 27.8 c. Afternoon surface observations
reflect the very warm air mass, as temperatures are already
approaching 110 degrees over the desert areas as of 1 pm pdt.

Still expecting a high temperature of 113 degrees at phoenix and
114 degrees at yuma today. Another day of excessive heat is likely
on Wednesday across the region, with high temperatures very
similar to today. Officially, the high temperature is forecast to
reach 114 degrees at phoenix, which is likely to shatter the
record of 110 degrees set in 2007.

A cooling trend will commence on Thursday into the weekend, as
high temperatures return closer to normal. Overnight low
temperatures will also be fairly pleasant for late august, falling
into the low 80s in phoenix and 70s across the remainder of the
desert locations. This will occur coincident with a gradual
increase in low-level moisture, as a complicated upper-level
pattern takes hold. Strong westerlies will be present across the
pacific northwest into the inter-mountain west, while a series of
weak upper-disturbances move across northwest mexico. With an
elongated ridge axis in place across central arizona into central
new mexico, this should keep the influence of upper-level
disturbances primarily confined to southern arizona. However, a
slight chance of showers and thunderstorms may still exist across
south-central arizona on late Friday into Saturday given the
elevated moisture values.

The persistence of strong westerlies aloft will keep the
southwestern u.S. Mid-upper level anticyclone relatively
suppressed and elongated, meaning rich monsoonal moisture will
continue to remain positioned southward across northwest mexico.

A gradual rise in heights will also bring high temperatures back
to a few degrees above normal by early next week with minimal
precipitation chances. All in all, expect very quiet weather most
of next week for late august. There are some indications a more
significant moisture increase could occur later next week, but
this far out confidence remains quite low.

Aviation Updated at 0510 utc.

South-central arizona including kphx, kiwa, ksdl, and kdvt:
benign weather conditions will persist through Wednesday as an
area of high pressure in the eastern pacific predominates. This
will result in light, diurnal winds and mostly clear skies.

Isolated convection is expected Wednesday, but will remain
confined to southeastern arizona, with no impacts in the phoenix

Southeast california southwest arizona including kipl and kblh:
no aviation weather concerns expected. Clear skies and diurnal
winds will prevail at both kipl and kblh.

Aviation discussion not updated for amended tafs.

Fire weather
Friday through Tuesday:
a gradual increase in moisture will occur into Friday, with
isolated thunderstorms returning into the forecast for the higher
terrain of gila county and possibly the lower deserts including
the phoenix metro on Friday and Saturday. Temperatures will also
return closer to seasonal normals through the weekend.

Thunderstorm chances will begin to decrease on Sunday and Monday.

Minimum relative humidity values will increase from the 10 to 20
percent range on Thursday to the 20 to 30 percent range by the
weekend. Winds will follow typical diurnal patterns through Friday
before westerlies generally prevail across the south central
arizona zones for the weekend with afternoon and early evening
gustiness each day. Another gradual warming and drying trend will
occur into Tuesday as high pressure rebuilds over the southwest.

Record high temperatures
date phoenix yuma
---- ------- ----
aug 20 112 in 1986 114 in 1982
aug 21 110 in 2007 115 in 1969
aug 22 113 in 2011 115 in 1969
aug 23 114 in 2011 115 in 2011

Spotter information statement
Spotters should follow standard reporting procedures.

Psr watches warnings advisories
Az... Excessive heat warning until 8 pm mst Wednesday for azz530>546-

Ca... Excessive heat warning until 8 pm pdt Wednesday for caz561>570.

Excessive heat warning from 11 am to 8 pm pdt Wednesday for

Discussion... Rogers
aviation... Hirsch
fire weather... Rogers hopper
climate... Rogers kuhlman mo

Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Blythe, Blythe Airport, CA50 mi38 minW 310.00 miFair86°F26°F11%1005.6 hPa

Link to 5 minute data for KBLH

Wind History from BLH (wind in knots)
Last 24hrS5CalmNW3NW7NW4NW5CalmSE3SE545E4SE5S11
1 day agoS4S5S9S86N4CalmS5SE554S8S8
2 days agoSW7CalmS6S7SE5SW3CalmS11S9S10S9S9S10SE10S10

Tide / Current Tables for
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Tide / Current Tables for
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Weather Map and Satellite Images
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GOES 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 (4,6,7,8)
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Ground Weather Radar Station Yuma, AZ
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The information on this web site has not been checked for accuracy. It is for entertainment purposes only and should be independently verified before using for any other reason. There are five sources. 1) Documents and manuals from a variety of sources. These have not been checked for accuracy and in many cases have not even been read by anyone associated with I have no idea of they are useful or accurate, I leave that to the reader. 2) Articles others have written and submitted. If you have questions on these, please contact the author. 3) Articles that represent my personal opinions. These are intended to promote thought and for entertainment. These are not intended to be fact, they are my opinions. 4) Small programs that generate result presented on a web page. Like any computer program, these may and in some cases do have errors. Almost all of these also make simplifying assumptions so they are not totally accurate even if there are no errors. Please verify all results. 5) Weather information is from numerious of sources and is presented automatically. It is not checked for accuracy either by anyone at or by the source which is typically the US Government. See the NOAA web site for their disclaimer. Finally, tide and current data on this site is from 2007 and 2008 data bases, which may contain even older data. Changes in harbors due to building or dredging change tides and currents and for that reason many of the locations presented are no longer supported by newer data bases. For example, there is very little tidal current data in newer data bases so current data is likely wrong to some extent. This data is NOT FOR NAVIGATION. See the XTide disclaimer for details. In addition, tide and current are influenced by storms, river flow, and other factors beyond the ability of any predictive program.