Friday, October20, 2017 L-36.com


Marine Weather and Tides
Crescent City, CA

Version 3.4
What's New / NOTES
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
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 7:33AMSunset 6:28PM Friday October 20, 2017 9:18 AM PDT (16:18 UTC) Moonrise 7:20AMMoonset 6:25PM Illumination 0% Phase: New Moon; Moon at 0 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
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 850 Am Pdt Fri Oct 20 2017
Synopsis for the southern oregon coastal waters..Heavy long period northwest swell will persist through this afternoon, creating very high and steep seas along with dangerous surf and bar conditions. The heavy swell will subside to moderate tonight, but another round of south gales will develop at that time as a warm front moves through the area. This front will also bring heavy rainfall late tonight into Saturday morning. A thermal trough will set up along the coast early next week, and this will bring strong north winds and steep seas south of cape blanco beginning Monday and continuing through Tuesday.

7 Day Forecast for Marine Location Near Crescent City, CA
   Hourly   EDIT   Help
location: 41.76, -124.19     debug


Area Discussion for - Medford, OR
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus66 kmfr 201556
afdmfr
area forecast discussion
national weather service medford or
856 am pdt Fri oct 20 2017

Update Radar returns this morning show numerous showers making
their way east to west across the region. The bulk of these remain
concentrated along and wets of the cascades, but a few showers are
possible across the east side as well. These showers should
gradually diminish through this afternoon, but the break will be
short lived, as the tail end of the passing front will lift back
north as a warm front tonight and tomorrow. This will produce
another round of widespread precipitation and breezy to gusty
winds. Snow levels of around 4500 feet today will lift quickly
above 9000 feet as the warm front passes. Until then, moderate to
heavy now is likely in the cascades, and a winter weather
advisory remains in place there.

Overall this morning, the forecast appears on track, so there are
no major changes with the update. Major efforts today will focus
on the warm frontal passage mentioned above. For more information
on this and the rest of the forecast, see the previous discussion
below. -bpn

Aviation 20 12z TAF cycle... From the cascades west... Areas of
MVFR ifr CIGS vsbys in showers and extensive obscuration of higher
terrain will persist this morning. Conditions will improve later
this morning to local MVFR CIGS in showers with areas of higher
terrain obscured. This will persist into this evening, but
precipitation will end briefly this afternoon into this evening.

South winds will increase tonight as a warm front moves in, with
MVFR with areas of ifr ceiling at the coast. East of the
cascades... Areas of MVFR CIGS vsbys with obscuration of higher
terrain will persist this morning. Conditions will improve to
isolated MVFR CIGS by this afternoon, but winds will pick up again
this afternoon. Precipitation will end briefly Friday afternoon into
Friday evening.

Marine Updated 850 am pdt Friday 20 october 2017... Heavy long
period northwest swell will persist through this afternoon, creating
very high and steep seas along with dangerous surf and bar
conditions. The heavy swell will subside to moderate tonight, but
another round of south gales will develop at that time as a warm
front moves through the area. This front will also bring heavy
rainfall late tonight into Saturday morning. A thermal trough will
set up along the coast early next week, and this will bring strong
north winds and steep seas south of CAPE blanco beginning Monday and
continuing through Tuesday. -msc

Prev discussion issued 513 am pdt Fri oct 20 2017
discussion...

scattered showers will continue across the region this morning
behind a robust cold front. Snow levels have dropped and we have
observed snow falling at lakeview, klamath falls and the diamond
lake odot camera this morning. We're still going with 6 to 10
inches to fall above 4500 feet across the cascade range this
morning through 18z. We also saw plenty of precipitation with one
site near brookings reporting 2+ inches of rain.

As for the rest of the day, the trough axis swings through our
forecast area with the cold temperatures aloft allowing widespread
showers to continue. The bulk of precipitation will occur during
the morning and early afternoon hours before the trough axis
swings through Friday afternoon evening. As a result, showers
should be on the down turn Friday evening.

That will be briefly lived as a warm front pushes in from the
west on Saturday morning. Snow levels will still be 4000 to 4500
feet ahead of the front. Therefore, broad synoptic lift ahead of
the front will allow for some pretty intense snow fall between
6z and 15z Saturday along the cascades. Right now the forecast
calls for an additional 6 to 10 inches along the cascades.

Once this warm front passes, the focus really is on the zonal flow
and the atmospheric river slamming onto the cascade range. Right
now portland's forecast area is really going to get hit if the
models are on point. 700mb and 850mb winds are 50 to 60 knots
allowing for some solid topographic lift, which can be seen on the
nam QPF output. More specifically for the QPF fields from 21z
Saturday to 18z Sunday. That moisture axis will then shift south
briefly Sunday evening bringing more rain to southern oregon. Wind
products may be needed for higher elevations on east side
Saturday afternoon because of the winds mentioned earlier.

-smith

Mfr watches warnings advisories
Or... High surf advisory until 11 pm pdt this evening for orz021-022.

Winter weather advisory until 11 am pdt Saturday for
orz025-027-028.

Ca... None.

Pacific coastal waters... Gale warning from 11 pm this evening to 5 pm pdt Saturday for
pzz350-356-370-376.

Hazardous seas warning until 11 pm pdt this evening for
pzz350-356-370-376.

Bpn msc czs sbn


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
CECC1 - 9419750 - Crescent City, CA 1 mi127 min S 14 G 17 51°F 52°F1014.4 hPa
46027 - ST GEORGES - 8NM West Northwest of Crescent City, CA 12 mi149 min S 12 G 16 54°F 53°F17 ft1013.3 hPa (+2.1)
46244 - Humboldt Bay, North Spit, CA 60 mi118 min 50°F20 ft

Wind History for Crescent City, CA
(wind in knots)    EDIT      (on/off)   Help
9
AM
10
AM
11
AM
-12
PM
-12
PM
-12
PM
-12
PM
-12
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
Last
24hr
SE25
G32
SE24
G30
SE26
W12
G17
SE8
N2
SE10
E7
SE4
S10
S14
S13
G17
S12
S11
G14
S12
G16
S14
S17
G22
SE15
G19
S13
G18
1 day
ago
SE2
SE1
SE3
S7
S7
S10
S11
S6
S11
S10
S15
SE13
SE12
S13
G16
SE16
G21
S17
G22
SE20
G25
2 days
ago
--
NW5
G8
E3
S2
E3
SE5
E1
NE1
E1
N5
N1
--
N3
N1

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Crescent City, Jack McNamara Field Airport, CA3 mi23 minS 108.00 miOvercast50°F48°F93%1016.4 hPa
Brookings, Brookings Airport, OR22 mi23 minVar 39.00 miLight Rain50°F48°F96%1017.5 hPa

Wind History from CEC (wind in knots)
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
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
Last 24hrS20
G28
S21S21
G27
S15
G22
S16SW20
G29
SW14
G22
SW12W13SE6E6SE8SE7SE3S7S10S10S10S8S10S12S15S11S12
1 day agoS4S5S7S8S7S8S7S6S5S5SE7S7S7S7S7S9S10S12S13SE14S12S14SE18
G24
SE18
G26
2 days agoCalmS4Calm5N6NW9N8NW9N7NW3NW6CalmS3S3SE4N4CalmS3CalmCalmCalmCalmCalmSE3

Tide / Current Tables for Crescent City, California
   EDIT   RT Ports Option   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Crescent City
Click for Map
Fri -- 12:38 AM PDT     6.32 feet High Tide
Fri -- 06:22 AM PDT     1.50 feet Low Tide
Fri -- 07:35 AM PDT     Sunrise
Fri -- 08:19 AM PDT     Moonrise
Fri -- 12:25 PM PDT     7.16 feet High Tide
Fri -- 06:27 PM PDT     Sunset
Fri -- 07:00 PM PDT     -0.12 feet Low Tide
Fri -- 07:25 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
6.26.35.74.63.32.21.61.62.43.75.26.47.176.24.831.40.3-0.10.31.42.84.4

Tide / Current Tables for Brookings, Chetco Cove, Oregon
   EDIT      (on/off)   Help   One Week of Data
Brookings
Click for Map
Fri -- 12:39 AM PDT     6.32 feet High Tide
Fri -- 06:26 AM PDT     1.50 feet Low Tide
Fri -- 07:36 AM PDT     Sunrise
Fri -- 08:19 AM PDT     Moonrise
Fri -- 12:26 PM PDT     7.16 feet High Tide
Fri -- 06:27 PM PDT     Sunset
Fri -- 07:04 PM PDT     -0.12 feet Low Tide
Fri -- 07:25 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
6.26.35.74.63.32.21.61.62.43.65.16.47.176.24.83.11.50.3-0.10.21.32.84.3

Weather Map and Satellite Images
       (on/off)   Help
Weather Map
wmap_P
IR Satellite Image from GEOS
west_satellite

GOES Local Image of CentralWestCoast    EDIT
Geos

Wind Forecast for Medford, OR (12,3,4,5)
      (on/off)   Help

Ground Weather Radar Station Medford, OR
   (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.