Monday, December10, 2018 L-36.com


Marine Weather and Tides
Brawley, CA

Version 3.4
What's New / NOTES
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.

Sunrise 6:33AMSunset 4:37PM Monday December 10, 2018 12:12 AM PST (08:12 UTC) Moonrise 10:17AMMoonset 8:44PM Illumination 8% Phase: Waxing Crescent; Moon at 3 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
    EDIT      (on/off)   Help


7 Day Forecast for Marine Location Near Brawley, CA
   Hourly   EDIT   Help
location: 32.98, -115.53     debug


Area Discussion for - Phoenix, AZ
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus65 kpsr 100540
afdpsr
area forecast discussion
national weather service phoenix az
1040 pm mst Sun dec 9 2018

Update
Updated 06z aviation discussion.

Synopsis
Drier weather with steadily warming temperatures will grace the
region through the first part of the week. A fast moving, weak
weather system will brush through the area Tuesday and Wednesday
bringing thicker clouds, but just a very slight chance for
precipitation. Clearing conditions will exist later in the week
though temperatures should hover near or slight below average.

Discussion
Early this afternoon, an upper level high pressure ridge continued
to develop over the desert southwest; 12z 500mb plot data showed
heights continuing to climb and reaching around 580dm over the
southern deserts. With the ridge axis still west of arizona, the
high clouds streaming through the ridge were thinning as they moved
into the state, but overnight tonight and through the day Monday we
can expect increasing and thickening high clouds as the ridge
progresses east and the axis eventually shifts east of phoenix.

Surface dewpoints over the lower deserts were down 1-10 degrees over
the last 24 hours and were running mostly in the 40s; the drier air
combined with thicker high clouds overnight tonight and subsequent
lack of good radiational cooling should eliminate another bout of
dense fog which occurred over a portion of the deserts southeast of
phoenix this morning. Despite the high clouds in place Monday, the
warmer deserts will still reach into the low 70s in some locations.

During the middle of the week, a pair of fast moving, progressive,
dry open wave trofs will dive southeast and move across the area.

The first such wave will quickly race across arizona later Tuesday,
moving east and out of the area by early Wednesday. The second
stronger, kicker system will push through the area mainly Wednesday
night and will do little except to bring another shot of cooler and
drier air into the state in its wake. Latest guidance continues to
be ever more insistent that these will be dry systems, especially
the first one which will mainly bring variable mid and high clouds
with its passage. Pops continue to be lowered and now are barely
over 10 percent over portions of southern gila county on Tuesday
night. Latest mex MOS guidance keeps pops near zero in phoenix for
the rest of the work week, and current ivt (integrated vapor
transport) forecasts still show no moist plumes or enhanced
transport values anywhere near arizona with the upcoming systems,
which will have largely overland and dry trajectories as they pass
through the area. Look for high temperatures to fall off Wednesday
and Thursday in the wake of the passing disturbances, with central
desert highs lowering into the mainly middle 60s each day. The rest
of the discussion is from the previous midnight shift.

The aforementioned kicker system will dig through the great basin
during the middle of the week entering a rapid deepening phase over
the southern plains. This will result in an overall amplification to
the western CONUS flow pattern forcing strong sfc pressure rises
through the northern and central rockies. While some of the colder
low level airmass associated with the sfc high will bleed into
arizona, the larger synoptic pattern will remain progressive
providing just a glancing blow of the cold air to the forecast area.

Latest model guidance shows temperatures likely not as cold as
previously indicated, yet still hovering in a near normal range as
low amplitude waves and a healthy zonal pacific jet keep heights
aloft hovering around typical winter season levels.

Aviation
South-central arizona including kphx, kiwa, and ksdl:
high clouds will thicken overnight as surface dewpoints continue
to gradually decrease, precluding any fog development. High
pressure building across the southern rockies this morning will
result in a prolonged period of easterly 5-10 knot flow during the
afternoon with brief gusts up to 15 knots possible at kphx. Winds
may try to back to north-northeasterly late in the afternoon and
evening hours, but should remain weak. Broken to overcast cloud
decks at 20-25 kft will persist through Tuesday morning.

Southeast california southwest arizona including kipl and kblh:
no aviation weather impacts are expected as light diurnal winds
persist under broken cirrus cloud decks through Monday evening.

Aviation discussion not updated for amended tafs.

Fire weather
Tuesday through Saturday:
dry weather with very seasonal temperatures will be common over the
districts during the middle of the week. Somewhat cooler conditions
will spread into the region through the latter half of the week with
just a very slight chance of precipitation in the higher elevations
of gila county. Most locations should not expect to see any rain or
snow. Some locally breezy north winds will be possible Tuesday
afternoon through SE california, and then again Thursday across all
districts. Minimum afternoon humidity levels will likely not fall
below 25-30% throughout the week with good to excellent overnight
recovery.

Spotter information statement
Spotters should follow standard reporting procedures.

Psr watches warnings advisories
Az... None.

Ca... None.

Discussion... CB mo
aviation... Hopper mh
fire weather... Mo


Weather Reporting Stations
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map
Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
TIXC1 - Tijuana River Reserve, CA 89 mi87 min Calm 56°F 1022 hPa55°F
SDBC1 - 9410170 - San Diego, CA 89 mi48 min 1020.5 hPa

Wind History for USS MIDWAY South Navy Pier, San Diego, CA
(wind in knots)    EDIT      (on/off)   Help
Last
24hr
1 day
ago
2 days
ago

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Imperial, Imperial County Airport, CA10 mi19 minW 47.00 miFair55°F51°F87%1021.7 hPa
El Centro, Naval Air Facility, CA13 mi16 minW 610.00 miFair54°F50°F87%1024 hPa

Wind History from IPL (wind in knots)
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
Last 24hrW3W5W5W3W4W3W4W4W4NW44NW4N5N4NW4CalmW4W4NW3CalmCalmW3CalmW4
1 day agoW7W4W3W4SW4W5W4W4W3CalmN4N5N3W3NW3CalmCalmCalmCalmCalmW3CalmW3W5
2 days agoW4W3NW5W6W3W3W3W5NW5NW5NW7N6NW7NW6NW6N4W3SW3W4SW3W4W5W4W7

Tide / Current Tables for National City, San Diego Bay, California
   EDIT   RT Ports Option   Weekend mode (on/off)   (on/off)   Help   One Week of Data
National City
Click for Map
Mon -- 04:07 AM PST     2.51 feet Low Tide
Mon -- 06:39 AM PST     Sunrise
Mon -- 09:23 AM PST     Moonrise
Mon -- 10:13 AM PST     6.14 feet High Tide
Mon -- 04:42 PM PST     Sunset
Mon -- 05:42 PM PST     -0.25 feet Low Tide
Mon -- 07:52 PM PST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
43.73.22.72.52.73.24.155.86.165.34.22.91.60.5-0.1-0.20.2122.93.6

Tide / Current Tables for San Diego, California (2)
   EDIT      (on/off)   Help   One Week of Data
San Diego
Click for Map
Mon -- 03:57 AM PST     2.59 feet Low Tide
Mon -- 06:40 AM PST     Sunrise
Mon -- 09:23 AM PST     Moonrise
Mon -- 10:09 AM PST     5.86 feet High Tide
Mon -- 04:42 PM PST     Sunset
Mon -- 05:32 PM PST     -0.03 feet Low Tide
Mon -- 07:52 PM PST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
3.83.53.12.72.62.83.34.14.95.65.95.7542.71.50.6000.51.22.12.93.5

Weather Map and Satellite Images
       (on/off)   HelpWeather Map
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 (3,6,7,8)
      (on/off)   Help

Ground Weather Radar Station Yuma, AZ
   (on/off)   Help
weather_mapweather_map weather_map

Ad by Google

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.