Saturday, August24, 2019 L-36.com


Marine Weather and Tides
Brawley, CA

Version 3.4
NOTICE
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 L-36.com. Allen

Sunrise 6:10AMSunset 7:18PM Saturday August 24, 2019 1:22 PM PDT (20:22 UTC) Moonrise 12:14AMMoonset 2:28PM Illumination 32% Phase: Waning Crescent; Moon at 24 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 Brawley, CA
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location: 32.98, -115.53     debug


Area Discussion for - Phoenix, AZ
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Fxus65 kpsr 241814
afdpsr
area forecast discussion
national weather service phoenix az
1114 am mst Sat aug 24 2019

Update
Updated aviation section.

Synopsis
Although temperatures will be cooler the next couple days,
humidity levels will be significantly elevated. Slight chances
for showers and thunderstorms today will only exist well south of
phoenix. Drier air will move into the region through the first
half of next week, basically ending storm chances. Temperatures
will start climbing again early next week with Tuesday and
Wednesday possibly topping 110 degrees across the lower deserts.

Discussion
Morning WV imagery shows a series of fast moving northern stream
waves punching into the great basin while a flat midtropospheric
ridge splays across the foreast area. Further south, an easterly
wave (likely convectively enhanced) was situated over western sonora
placing much of south-central arizona within a region of deformation
and weak ascent. After another robust gulf surge last night and mid
60 to mid 70s surface dewpoints this morning, 12z sounding data
sampled very healthy sfc-h8 mixing ratios of 14-16 g kg. However,
sounding data also depicts quite a h8-h7 inhibition layer; and
lacking a more substantial gravity waves or other impetus for
stronger lift, only shallow cloud decks around the h8 level have
been observed this morning. Had there been some better ascent
mechanisms and or erosion of this capping layer, instability on the
order of 1500-2000 j kg could have easily been released (something
cams seemed to pick up on yesterday). Given this scenario, have
increased cloud cover through the morning hours while trending many
other parameters towards recent observational data.

Previous discussion
529 am mst Sat aug 24 2019
the rest of the today will still pose a small threat for isolated
afternoon showers and thunderstorms south of phoenix, but the
drying aloft will also be mixing out some of the lower level
moisture, gradually decreasing instability by this evening. Sunday
looks even more quiet with virtually no chance of storms other
than south of tucson. Temperatures this weekend will be somewhat
more comfortable and right around seasonal normals, but increased
surface dew points will make higher humidity levels more
noticeable.

The high pressure ridge centered to our northwest on Sunday will
gradually shift southeastward over our region early this week
with heights staying near steady-state, but low level
conditions will be warming as the atmosphere dries out more each
day. The warm air aloft and fairly dry conditions will keep storm
chances near zero on Monday and Tuesday. Models continue to show
high temperatures quickly trending upward early next week with
highs 3-5 degrees above normal on Monday and 6-8 degrees above
normal by Tuesday. The possibility for a marginal excessive heat
episode is becoming a bit more likely for Tuesday and Wednesday
for the warmest deserts with median guidance showing highs topping
out 109-112 on Tuesday, but will hold off on any headlines for
now.

Eventually, models mostly show the high center shifting just to
our northeast, likely setting up a more favorable southeasterly
moist flow. This should bring back storm chances as early as
Wednesday across the eastern arizona high terrain and possibly
over the arizona lower deserts at some point late next week.

Heights aloft later next week still look to be toward the upper
end of climo normals, but the likely increase in low level
moisture should lower temperatures to just a bit above normal.

Aviation Updated at 1815 utc.

South-central arizona including kphx, kiwa, ksdl, and kdvt:
humid air in the lower levels has been streaming in from the gulf
of california. It has been moist enough to generate cumulus at
unusually low altitudes for this time of year with bases at
fl050-070. The cumulus has been scattered for the most part and
is expected to remain that way. But, in localized areas (especially
near mountains) expect broken conditions into the early afternoon.

Anticipate coverage to decrease after 20z. Otherwise, anticipate a
slow increase in the height of the cloud bases. Winds at the
surface and lower levels will favor westerly directions the rest
of the day and overnight. Expect speeds to be strongest late this
afternoon and evening with gusts in the 15-25 kt range. There is
an outside possibility of another round of cumulus stratocumulus
Sunday morning but confidence too low to depict ceilings in the
tafs. As for storms, expect activity to remain outside of metro
phoenix with the main area over far southeast az.

Southeast california southwest arizona including kipl and kblh:
humid air in the lower levels has been streaming in from the gulf
of california. It has been moist enough to generate cumulus at
unusually low altitudes for this time of year with bases at
fl035-055. The cumulus has been broken over many areas near and
west of the lower colorado river valley. Anticipate coverage to
decrease after 20z. Otherwise, anticipate a slow increase in the
height of the cloud bases. Winds at the surface and lower levels
will favor southerly directions the rest of the day and overnight.

Expect speeds to be strongest late this afternoon and evening
with gusts in the 15-25 kt range.

Aviation discussion not updated for amended tafs.

Fire weather
Monday through Friday:
unusually dry conditions for late august will prevail through the
first half of next week with only slight chances of high terrain
thunderstorms later in the week. With this dry airmass, temperatures
will once again warm near excessive levels as afternoon highs peak
some 5f-10f above average. Afternoon humidity levels will fall into
the teens during the early part of the week, but increase closer to
a 20-30% range late in the week. Occasionally gusty upslope terrain
winds are likely through the week, though nothing too unusual for
the season.

Spotter information statement
Spotters should follow standard reporting procedures.

Psr watches warnings advisories
Az... None.

Ca... None.

Discussion... Mo kuhlman
aviation... Aj
fire weather... Mo


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SDBC1 - 9410170 - San Diego, CA 89 mi58 min 73°F1013.2 hPa
TIXC1 - Tijuana River Reserve, CA 89 mi97 min WNW 7 74°F 1014 hPa66°F

Wind History for USS MIDWAY South Navy Pier, San Diego, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Imperial, Imperial County Airport, CA10 mi29 minSSE 1110.00 miA Few Clouds98°F70°F40%1011.3 hPa
El Centro, Naval Air Facility, CA13 mi26 minSW 610.00 miMostly Cloudy99°F68°F37%1013.4 hPa

Link to 5 minute data for KIPL

Wind History from IPL (wind in knots)
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Last 24hr--E9SE11SE14SE15SE13SE13SE12SE11SE12SE13SE10E8E7E8E5E4E5SE7S8S9SE8
G17
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1 day agoE7SE8E9E7SE12SE13SW5W5CalmNE5E6SE6SE10SE8E9SE6SE4W4N5E7E63S5S6
2 days agoCalmE4CalmSW5S4SE6W9SW8W13W9W7W6E3SE5S6SE5SE5SE9SE9SE9SE6CalmE9SE6

Tide / Current Tables for National City, San Diego Bay, California
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National City
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Sat -- 12:21 AM PDT     Moonrise
Sat -- 06:02 AM PDT     3.47 feet High Tide
Sat -- 06:17 AM PDT     Sunrise
Sat -- 10:05 AM PDT     2.82 feet Low Tide
Sat -- 02:34 PM PDT     Moonset
Sat -- 04:57 PM PDT     5.55 feet High Tide
Sat -- 07:23 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.51.72.22.63.13.43.53.43.22.92.82.93.23.74.34.95.45.55.44.843.12.11.4

Tide / Current Tables for San Diego, California
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San Diego
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Sat -- 12:21 AM PDT     Moonrise
Sat -- 05:58 AM PDT     3.27 feet High Tide
Sat -- 06:18 AM PDT     Sunrise
Sat -- 09:55 AM PDT     2.82 feet Low Tide
Sat -- 02:35 PM PDT     Moonset
Sat -- 04:53 PM PDT     5.35 feet High Tide
Sat -- 07:23 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.51.82.12.633.23.33.232.92.82.93.23.74.34.85.25.35.14.63.82.921.3

Weather Map and Satellite Images
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wmap_P
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 (16,3,4,5)
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Ground Weather Radar Station Yuma, AZ
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Disclaimer:
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 L-36.com. 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 L-36.com 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.