Friday, December13, 2019
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Marine Weather and Tides
Bandon, OR

Version 3.4
NOTICE
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
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 7:39AMSunset 4:42PM Friday December 13, 2019 12:51 PM PST (20:51 UTC) Moonrise 6:20PMMoonset 9:07AM Illumination 95% Phase: Waning Gibbous; Moon at 17 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
PZZ310 Coos bay bar- coastal waters from cape blanco or to pt. St. George ca out 10 nm- waters from cape blanco or to pt. St. George ca from 10 to 60 nm- 134 pm pdt Wed may 29 2013 a long-duration moderate to strong north wind event is expected to last from this weekend into early next week. Winds should begin to increase Friday into Saturday...peaking Sunday with storm force wind gusts possible. Very steep and hazardous waves will accompany this wind event and mariners should prepare for dangerous conditions at sea. The strongest winds and highest seas will occur beyond 5 nm from shore.
PZZ300 829 Am Pst Fri Dec 13 2019
Synopsis for the southern oregon coastal waters..A large, high, and steep long period west swell will persist over the waters today. A low pressure will move onshore near pt. St. George and widespread rain showers will continue over the waters today. Gusty southerly winds are expected within 10 nm of shore south of brookings and gusty northeasterly winds from bandon south. Another low will track south and brush past the edge of the outer waters on Saturday. It will be followed by weak high pressure on Sunday. Seas will gradually lower tonight through Sunday but remain high and steep. High pressure builds on Monday with seas trending lower.


7 Day Forecast for Marine Location Near Bandon, OR
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location: 43.12, -124.41     debug


Area Discussion for - Medford, OR
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FXUS66 KMFR 131709 AFDMFR

Area Forecast Discussion National Weather Service Medford OR 909 AM PST Fri Dec 13 2019

DISCUSSION. A wave of low pressure is moving into southwest Oregon. precipitation is over the entire area this morning and will continue to be the case for the rest of today. Snow levels vary depending on location from around 5500 feet in northern California to around 4000 feet in the northern part of the forecast area. The surface low is expected to move east along the California/Oregon border during the day. The forecast for today appears on track with only a few adjustments made.

Steady precipitation will start to wind down to light off and on showers from west to east as the low moves east of our area. We'll still have light off/on showers to deal with, especially east of the Cascades and Modoc county. At the same time, a colder air mass will filter in and snow levels drop to around 2500 feet, but most of the precip will have moved out of the area by then, so the impact on the higher passes should be minimal. Please see previous discussion for more details on the weather for this weekend and beyond. -Petrucelli


AVIATION. For the 13/12Z TAFs . There is a wide range of conditions this morning with mainly VFR but also areas of MVFR and IFR with mountain obscuration. Conditions will deteriorate toward sunrise with lower ceilings and visibilities. Freezing levels near 5800 ft MSL overnight will peak near 6600 ft MSL this morning while moderate to briefly heavy precipitation mainly produces a mix of IFR and MVFR across the area. Precipitation intensity will diminish this evening, but coverage will still be widespread with cigs mainly MVFR with mountain obscuration while freezing levels fall to around 4000 feet by the end of this evening. -Sven

MARINE. Updated 800 AM PST Friday, 13 December 2019 . The pattern will remain active during the next week with periods of rain. The largest impacts will be in the short term with a high to very high long period west swell remaining at a peak today of around 16 to 18 feet at 17 seconds. Winds will be variable and chaotic across the waters on Friday as a low moves east toward Pt. St. George. Gusty southerly winds are expected south of Brookings within 10 nm of shore with gusty northeast winds from Bandon south. Elsewhere expect generally lighter east winds. Seas will barely diminish today with seas remaining swell dominated and steep and high.

Another low will track south and brush past the edge of the outer waters on Saturday. Bar conditions are expected to be particularly hazardous until seas diminish Saturday. Weak high pressure will follow on Sunday. Throughout this time, expect diminishing but high and steep seas due to ongoing long-period swell. High pressure builds into the area on Monday with seas reaching a minimum at around 5 to 7 feet. Periods of mainly small craft advisory winds and seas are expected during the remainder of next week, another strong front may approach at the end of the week. -CC

PREV DISCUSSION. /Issued 412 AM PST Fri Dec 13 2019/

DISCUSSION . Radar is showing precipitation gradually increasing as an upper trough approaches the coast. Road cams and surface observations also indicate widespread rain and snow over mainly the west side with the snow level near 5000 feet, and higher in California.

GOES-17 infrared satellite shows a broad area of enhancement over western Oregon and the adjacent Pacific waters, extending southwest. This is the result of a 170-190 knot divergent upper jet streak, which is influencing deepening surface pressure near 130W 41N. This surface low will be moving inland across the region today helping to produce ample precipitation as the day progresses, however not an unusual amount of wind.

Current Winter Weather Advisory looks right on track, but it should be noted that the snow amounts expected over the Cascades and northern east side areas are fairly healthy, and in the upper range of what we typically issue an advisory for. So travelers should be well informed of conditions before heading out. The best rain and snowfall rates will occur from 10 am through 4 pm.

Thereafter, the system will be departing slowly to the east with the air mass cooling down into Saturday morning as an upper trough digs over the region. The latest "old favorites" (NAM12 and GFS) are keeping the area relatively dry over the weekend as energy digs down the backside of the trough, grazing the coast region. However a majority of other solutions aren't necessarily as optimistic. The official forecast keeps with the National Blend probabilities, which maintain chance pops or higher over the east side and coast Saturday, then taper the chances on Sunday.

Chances for rain/snow increase again later next week as a significant upper trough approaches. This system looks like it will bring strong south winds to the coast region by around Thursday night. Stavish

MFR WATCHES/WARNINGS/ADVISORIES. OR . Winter Weather Advisory until 8 PM PST this evening above 4500 feet in the for ORZ029-030. Winter Weather Advisory until 8 PM PST this evening above 5000 feet in the for ORZ031. High Surf Advisory until 7 PM PST this evening for ORZ021-022. Winter Weather Advisory until 8 PM PST this evening above 4500 feet in the for ORZ027. Winter Weather Advisory until 8 PM PST this evening above 4500 feet in the for ORZ028.

CA . Winter Weather Advisory until 4 AM PST Saturday above 5500 feet in the for CAZ085.

Pacific Coastal Waters . Small Craft Advisory until 10 PM PST Sunday for PZZ350-356-370-376.


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
46128 14 mi51 min 52°F
CHAO3 - 9432780 - Charleston, OR 16 mi75 min ESE 4.1 G 5.1 52°F1019 hPa
PORO3 - 9431647 - Port Orford, OR 27 mi57 min N 2.9 G 6 49°F 52°F1019.1 hPa
46229 - UMPQUA OFFSHORE, OR (139) 46 mi51 min 52°F13 ft

Wind History for Charleston, OR
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Southwest Oregon Regional Airport, OR23 mi55 minN 05.00 miFair with Haze50°F45°F83%1019.4 hPa

Link to 5 minute data for KOTH

Wind History from OTH (wind in knots)
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2 days agoSE3SE4SE6S3SE3CalmE4W3CalmSE4SE5S5SE5S6SE8SE8SE6S5S5S4SE5SE5SE6SE7

Tide / Current Tables for Bandon, Coquille River, Oregon
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Bandon
Click for Map
Fri -- 01:06 AM PST     6.11 feet High Tide
Fri -- 06:06 AM PST     3.10 feet Low Tide
Fri -- 07:40 AM PST     Sunrise
Fri -- 09:06 AM PST     Moonset
Fri -- 11:53 AM PST     7.94 feet High Tide
Fri -- 04:42 PM PST     Sunset
Fri -- 06:20 PM PST     Moonrise
Fri -- 07:08 PM PST     -0.95 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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5.76.15.95.14.23.43.13.44.25.46.77.67.97.56.34.62.60.9-0.4-0.9-0.60.423.6

Tide / Current Tables for Charleston, Oregon
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Charleston
Click for Map
Fri -- 01:11 AM PST     6.84 feet High Tide
Fri -- 06:16 AM PST     3.37 feet Low Tide
Fri -- 07:41 AM PST     Sunrise
Fri -- 09:07 AM PST     Moonset
Fri -- 12:09 PM PST     8.67 feet High Tide
Fri -- 04:41 PM PST     Sunset
Fri -- 06:19 PM PST     Moonrise
Fri -- 07:13 PM PST     -1.09 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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6.36.86.65.84.83.93.43.54.35.678.18.78.47.25.43.21.1-0.4-1.1-0.80.323.9

Weather Map
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wmap_P
GEOS Local Image of PacificNorthwest    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 Medford, OR (15,3,4,5)
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Ground Weather Radar Station Medford, OR
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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 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.