Friday, June23, 2017 L-36.com


Marine Weather and Tides
Hornbrook, CA

Version 3.4
What's New / NOTES
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.

Sunrise 5:33AMSunset 8:52PM Friday June 23, 2017 10:10 AM PDT (17:10 UTC) Moonrise 4:26AMMoonset 7:27PM Illumination 0% Phase: New Moon; Moon at 29 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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This is a Weather Statement Zone, please check the Date to see if it has expired
PZZ330 1126 Pm Pdt Fri Aug 9 2013
.thunderstorms over the waters... Thunderstorms over the waters have weakened but isolated storms will continue overnight. Mariners can expect gusty and erratic winds with the storms along with frequent lightning. If caught on the open water stay below deck if possible...keep away from ungrounded metal objects. Lat...lon 4397 12411 4396 12411 4400 12413 4284 12455 4242 12440 4225 12441 4205 12428 4184 12422 4181 12580 4198 12579 4220 12589 4370 12576 4386 12565 4399 12562 4403 12414
PZZ300 847 Am Pdt Fri Jun 23 2017
Synopsis for the southern oregon coastal waters..Strong north winds and very steep, wind-driven seas continue today over the waters with the worst conditions this morning south of cape blanco and beyond 5 nm from shore. Winds ease a bit south of cape blanco in the afternoon as the thermal trough shifts inland. Winds and seas diminish considerably tonight through Saturday as the thermal trough expands north. Weak south flow prevails Saturday through Monday as low pressure approaches from the southwest.

7 Day Forecast for Marine Location Near Hornbrook, CA
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location: 41.9, -122.57     debug


Area Discussion for - Medford, OR
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Fxus66 kmfr 231615
afdmfr
area forecast discussion
national weather service medford or
915 am pdt Fri jun 23 2017

Discussion The coast is beginning to see cooler temperatures
this morning, starting south near brookings, and this coastal
surge of cooler air will slowly move northward over the next 2
days. We have lowered brookings forecast high today as they are
now seeing some onshore flow and temperatures have dropped 21
degrees over the past hour, from 85 to 64.

Sunny and hot will be the rule for inland locations
today through Sunday. Daily record high temperatures are possible
Saturday when temperatures will peak. Please see our web page at
weather.Gov medford for a rundown of forecast high temperatures
and daily record values for Saturday and Sunday. The three days of
heat will present a significant risk for a large part of the
area's population. This is partly due to the fact that we're still
in early summer and folks haven't acclimated to such high
temperatures yet. Additionally, overnight low temperatures will
not offer much relief from the heat (or at least not as much as
normal). Therefore, we have issued an excessive heat warning and
heat advisory for most inland areas west of the cascades. Some
things to remember during the heat.

* beat the heat, check the backseat. Never leave people or pets
in vehicles.

* rivers are dangerously cold and have strong currents. Wear a
life jacket if swimming.

* monitor older adults, young children and those who are sick.

* take plenty of rest breaks in shade or air conditioning.

* drink water before, during and after activities.

Attention then turns to more fire weather impacts Sunday and
Monday as thunderstorm chances are introduced to the forecast.

After such hot and dry weather, lightning poses a significant
threat for new fires. We'll be spending time on thunderstorm
chances today and communicating these threats to land management
agencies.

Please see the previous discussion below for more details on the
heat and thunderstorm potential.

Aviation 23 12z TAF cycle...VFR conditions will continue at all
inland terminals through the TAF period. There appears to be a good
chance for MVFR visibility in light fog to redevelop at oth after
04z this evening and worsen some toward 12z. Mts

Marine Updated 300 am Friday, 23 june 2017... Little change to the
forecast today other than to end the gale warning a bit earlier
south of CAPE blanco. The strong thermal trough will be moving
inland this afternoon with a weakening pressure gradient over the
waters. Hazardous seas and small craft advisory winds will continue
into tonight however. Saturday the north winds will weaken
considerably with seas remaining somewhat elevated beyond 5 nm from
shore. South flow prevails Sunday into Monday as low pressure moves
in from the southwest. Mts

Prev discussion issued 500 am pdt Fri jun 23 2017
discussion... The forecast focus was on coastal temperatures for
the next two days. Have only made minor changes to inland
temperatures for the next few days. The big question is how warm
will the coastal cities get today and Saturday. The guidance was
showing the brookings airport reaching the mid to upper 80s today
and the temperature at 2 am was a balmy 83 degrees with a
northeast wind gusting to 33 mph. The hrrr high resolution model
shows winds turning onshore at brookings today around 1 pm.

Therefore, have raised the high at brookings to 89 degrees but the
exact climb upward has a lot of uncertainty.

Farther north, the coos bay area is also a challenging
temperature forecast. Northerly flow should allow some cooling
compared with inland areas and it was 54 degrees at 230 am. Have
raised the high temperature at the north bend airport to 75
degrees today and kept the 80 degrees for Saturday. The cooler
south-to-north surge of marine air may not make it that far north
until late on Saturday so there is the chance that temperatures
could climb through the 80s on Saturday.

The ocean temperatures are only in the upper 40s and lower 50s due
to strong upwelling (colder ocean water coming up from below) which
has occurred due to the recent gusty and persistent north winds.

These cold ocean temperatures will really be felt when the winds
turn onshore, especially when accompanied by low clouds and fog.

Elsewhere inland, it will be very hot with near record high
temperatures this weekend. Various excessive heat warnings and
heat advisories are in effect this weekend.

There will be a transition to cooler air early next week with
thunderstorms possible during this change of airmass. The upper
flow will become southerly on Sunday and the models have been
consistently showing convection and precipitation developing from
mainly the cascades westward. The models have also shown the
convection continuing throughout the night so we could see an
unusual bout of isolated to scattered thunderstorms persisting
through the night.

On Monday the convection should focus farther east from around
the oregon cascades eastward as an upper trough comes through our
area by evening. Much of next week will feature temperatures
closer to normal with dry conditions as the upper westerlies
influence the pacific northwest.

Sandler

Mfr watches warnings advisories
Or... Red flag warning until 10 am pdt this morning for orz618.

Heat advisory from 11 am Saturday to 8 pm pdt Sunday for
orz023>028.

Excessive heat warning from 11 am Saturday to 8 pm pdt Sunday
for orz023>028.

Ca... Heat advisory from 11 am Saturday to 8 pm pdt Sunday for
caz080-081.

Excessive heat warning from 11 am Saturday to 8 pm pdt Sunday
for caz080-081.

Pacific coastal waters... Small craft advisory until 11 pm pdt this evening for
pzz350-356-370-376.

Small craft advisory for hazardous seas from 11 pm this evening
to 5 pm pdt Saturday for pzz350-356-370-376.

Hazardous seas warning until 2 pm pdt this afternoon for
pzz356-370-376.

Nsk res mts


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CECC1 - 9419750 - Crescent City, CA 86 mi40 min Calm G 1 56°F 51°F1012.6 hPa
46027 - ST GEORGES - 8NM West Northwest of Crescent City, CA 96 mi80 min SSW 1.9 G 5.8 52°F 48°F8 ft1011.8 hPa (+2.3)

Wind History for Crescent City, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Montague Siskiyou County Airport, CA9 mi17 minW 310.00 miFair77°F37°F24%1017.4 hPa

Wind History from SIY (wind in knots)
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Last 24hrN6----N8N10N12N17
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N14N12N9N12N11N10N11N13N10NE7E6NE8NE6NE6NE65W3
1 day agoN4CalmN7N11
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N16N15N13N17N14N14N11N8N9N6N7N8N10N6N9N10N6

Tide / Current Tables for Crescent City, California
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Crescent City
Click for Map
Fri -- 05:34 AM PDT     Moonrise
Fri -- 05:42 AM PDT     Sunrise
Fri -- 05:48 AM PDT     -1.86 feet Low Tide
Fri -- 12:22 PM PDT     5.95 feet High Tide
Fri -- 05:31 PM PDT     2.16 feet Low Tide
Fri -- 07:32 PM PDT     New Moon
Fri -- 08:33 PM PDT     Moonset
Fri -- 08:55 PM PDT     Sunset
Fri -- 11:33 PM PDT     8.27 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
7.45.93.81.6-0.3-1.5-1.8-1.20.223.85.25.95.85.142.92.32.234.35.87.28.1

Tide / Current Tables for Brookings, Chetco Cove, Oregon
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Brookings
Click for Map
Fri -- 05:33 AM PDT     Moonrise
Fri -- 05:42 AM PDT     Sunrise
Fri -- 05:52 AM PDT     -1.86 feet Low Tide
Fri -- 12:23 PM PDT     5.95 feet High Tide
Fri -- 05:35 PM PDT     2.16 feet Low Tide
Fri -- 07:32 PM PDT     New Moon
Fri -- 08:34 PM PDT     Moonset
Fri -- 08:56 PM PDT     Sunset
Fri -- 11:34 PM PDT     8.27 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
7.463.91.7-0.2-1.5-1.8-1.20.123.85.25.95.85.1432.32.22.94.25.87.28.1

Weather Map and Satellite Images
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Weather Map
wmap_P
IR Satellite Image from GEOS
west_satellite

GOES Local Image of CentralWestCoast    EDIT
Geos

Wind Forecast for Medford, OR (13,3,4,5)
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Ground Weather Radar Station Medford, OR
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weather_mapweather_map weather_map

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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.