Thursday, July2, 2020
Privacy Policy
L-36.com


Marine Weather and Tides
Coos Bay, OR

Version 3.4
NOTICE
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
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.

Sunrise 5:39AMSunset 9:02PM Thursday July 2, 2020 11:25 AM PDT (18:25 UTC) Moonrise 5:50PMMoonset 2:31AM Illumination 91% Phase: Waxing Gibbous; Moon at 12 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
PZZ350 Coastal Waters From Florence To Cape Blanco Or Out 10 Nm- 839 Am Pdt Thu Jul 2 2020
.small craft advisory in effect through late tonight...
Today..NE wind 5 to 10 kt...backing to N 5 to 15 kt in the afternoon. Wind waves 5 to 7 ft. SW swell 2 ft at 16 seconds. Patchy fog in the morning.
Tonight..N wind 5 to 15 kt. Wind waves 5 to 6 ft. Mixed swell sw 2 ft at 15 seconds and S 1 ft at 24 seconds.
Fri..N wind 5 to 10 kt. Wind waves 4 to 5 ft. Mixed swell sw 2 ft at 15 seconds and sw 1 ft at 22 seconds.
Fri night..N wind 5 to 10 kt. Wind waves 4 ft. SW swell 1 to 2 ft.
Sat..E wind 5 kt...backing to nw in the afternoon. Wind waves 3 to 4 ft. SW swell 2 ft. Patchy fog in the morning.
Sat night..NW wind 5 to 10 kt...veering to N after midnight. Wind waves 3 ft. SW swell 2 ft. Patchy fog after midnight.
Sun..N wind 5 kt...becoming 5 to 10 kt. Wind waves 2 ft or less...becoming 3 ft. Mixed swell sw 2 ft and nw 1 to 2 ft.
Mon..N wind 5 kt...becoming 5 to 10 kt. Wind waves 3 ft. Mixed swell sw 2 ft and nw 2 ft.
PZZ300 839 Am Pdt Thu Jul 2 2020
Synopsis for the southern oregon coastal waters..Gusty north winds and steep to very steep seas will continue through this evening as the thermal trough persists along the coast. The strongest winds will occur south of gold beach. Conditions will improve Friday as the thermal trough weakens. Relatively calm conditions are then likely Friday night into early next week. However, a low long period south swell could result in problematic bar conditions this weekend.


7 Day Forecast for Marine Location Near Coos Bay city, OR
   Hourly   EDIT   Help
location: 43.38, -124.22     debug


Area Discussion for - Medford, OR
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
FXUS66 KMFR 021544 AFDMFR

Area Forecast Discussion National Weather Service Medford OR 844 AM PDT Thu Jul 2 2020

DISCUSSION. No changes to the forecast at this time.

Marine layer induced stratus is burning off in areas of Douglas and Coos county. Expect cloudless skies, but mild temperatures. Remember that at this time of the year the sun's intensity is quite strong, so even if it doesn't feel hot, to take action to prevent sunburn.

We are still anticipating afternoon breezes for inland areas, but they should be weaker than the past few afternoons. Beyond this, please refer to the previous discussion for expanded details on the forecast. -Miles

AVIATION. For the 02/12Z TAF Cycle . Areas of MVFR ceilings will burn off quickly this morning. VFR will prevail for the remainder of the TAF cycle.

-Smith

MARINE. Updated 840 AM PDT Thursday 2 July 2020 . Gusty north winds and steep to very steep seas will continue through this evening as the thermal trough persists along the coast. The strongest winds with very steep and hazardous seas will continue south of Gold Beach. Winds and seas will remain highest during the afternoon and evening hours.

Conditions will improve as the thermal trough weakens Friday, with Small Craft Advisory conditions retreating to areas south of Cape Blanco. Relatively calm conditions are then likely Friday night into early next week, although a low, long period southerly swell is expected later Friday through the weekend, which could result in problematic bar conditions and increased sneaker wave risk. The thermal trough will return next week, but models are showing it taking up a more inland position. This would keep north winds in place over the area, but at a much weaker strength than during a typical event.

-Sven

PREV DISCUSSION. /Issued 450 AM PDT Thu Jul 2 2020/

DISCUSSION . Upper troughing will dominate our weather pattern into next week, and weather impacts will be minimal through the next 7 days. Marine layer stratus has made its way into the Umpqua Basin, and the coast, as is typical when the winds aloft (at about 5000 ft) turn more northerly, has at least partially cleared out north of Cape Blanco. Expect any morning clouds to clear out later this morning,

A warming trend is expected today (about 5 degrees warmer than yesterday), and then temperatures should remain relatively steady through the weekend. A sunny 4th of July weekend is expected with temperatures near normal and typical afternoon breezes. Models show a robust area of marine layer clouds over the Northeast Pacific waters, so expect nighttime and morning low clouds to move inland to the Umpqua Basin, then clear in the late morning/early afternoon. For the immediate coastline, clearing is a little more uncertain, but we do think that at least partly sunny skies can be expected in the afternoons/early evening timeframe . before the marine stratus moves back in late in the evening and overnight.

Midlevel winds (at about 10000 feet above sea level) dictate much of the weather we experience in the summertime . and in the wintertime to some extent. We've transitioned away from late spring frontal-type thunderstorm activity that involves warming surface temperatures due to increasing sun angle and the last of cold air "pools" aloft behind cold fronts. Now through August, thunderstorms are generally dictated by how much moisture can be delivered into our forecast area. Summertime winds that are generally from a westerly direction (northwest to southwest) usually bring relatively dry and stable air to the forecast area. This may seem strange, given that these winds are coming from the ocean. However, the Northeast Pacific is a cold ocean, and the colder the ocean the less evaporation of moisture into the atmosphere. Summertime thunderstorms in our forecast area depend on significant moisture, so any winds that come from our local ocean waters typically do not provide sufficient moisture. When deep layer winds shift more southerly, the moisture source can shift to distant, warmer oceans like the Gulf of California and Gulf of Mexico. This is when significant thunderstorm events enter the picture. All this early-morning pontificating about winds above the surface is to bring home the point that these winds are so meaningful for our forecast area, and that regional midlevel winds will remain southwesterly to westerly through Wednesday at least, resulting in a stable air mass with no thunderstorms expected.

As we move into late next week, there's some data that suggests as a 4-corners high develops in the Desert Southwest, midlevel winds may shift to a more southerly direction. However, the consensus of the model data keeps generally southwesterly flow aloft, so we're keeping thunderstorms out of the forecast even late into next week. We'll keep monitoring the evolution of this upper troughing pattern.

FIRE WEATHER . Updated 200 AM PDT Thursday, 2 July 2020 . Gusty northeast winds and moderate humidity recoveries are occurring along the mid slopes and ridges in fire zones, 618, 619 and western 620 this morning.

Aside from afternoon breezes, it's looking like a relatively quiet fire weather pattern for at least the next 7-10 days. The general pattern will feature troughiness over the area with a stable northwest, then southwest flow. This typically results in temperatures around or slightly below normal and no precipitation. A warm up is expected through early next week. Even then, afternoon temperatures are expected to be near normal for this time of the year.

Thunderstorm chances are next to zero through the forecast period. This is because of generally stable and dry northwest to southwest flow aloft and drier mid level moisture. A upper trough will move into the area by the start of next week with a weak trigger, but once again mid level moisture is lacking, thus no threat of thunderstorms.

Beyond next Monday the operational models, ensemble members and cluster analysis all point to a similar conclusion. General troughiness with continued dry and stable conditions. -Petrucelli/Keene

MFR WATCHES/WARNINGS/ADVISORIES. OR . Frost Advisory until 8 AM PDT this morning for ORZ029>031.

CA . Frost Advisory until 8 AM PDT this morning for CAZ084.

Pacific Coastal Waters . Small Craft Advisory until 5 AM PDT Friday for PZZ350-370. Small Craft Advisory until 2 AM PDT Saturday for PZZ356-376. Hazardous Seas Warning until 5 AM PDT Friday for PZZ356-376.


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
CHAO3 - 9432780 - Charleston, OR 7 mi49 min N 6 G 8 63°F1017.6 hPa
SNTO3 9 mi55 min N 5.1 61°F 1018 hPa53°F
46128 18 mi85 min 52°F 53°F
46229 - UMPQUA OFFSHORE, OR (139) 32 mi59 min 58°F8 ft
PORO3 - 9431647 - Port Orford, OR 47 mi55 min NNW 11 G 18 63°F 46°F1017 hPa

Wind History for Charleston, OR
(wind in knots)    EDIT      (on/off)   Help
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
9
AM
10
AM
11
AM
Last
24hr
N6
NW5
NW3
NW10
G13
N10
G13
NW11
N7
G11
N3
G9
N5
NW5
E2
E1
G4
SE2
--
SE1
--
--
--
SE3
E3
E1
N2
W4
N10
1 day
ago
N8
G12
N7
G10
NW6
G9
N8
G11
N7
G12
NW5
N5
N6
N7
G10
N3
NE2
NE3
NE3
N3
NE4
N4
NE4
N3
SE1
E2
NW3
N4
NW4
N8
G13
2 days
ago
W3
W6
NW11
NW8
NW6
NW7
NW8
NW5
NW3
N2
N1
S1
SW1
W3
W1
SW1
--
W1
W3
SW2
W2
W3
W4
W3
G6

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports. Follow links for more data.
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Southwest Oregon Regional Airport, OR4 mi29 minNNW 1210.00 miFair65°F54°F68%1017.6 hPa

Link to 5 minute data for KOTH

Wind History from OTH (wind in knots)
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
9
AM
10
AM
11
AM
Last 24hrN9N11NW14NW12NW15N13N12N9N11N10N6N4NE3E3CalmSE4SE3S4SE4SE4Calm3N9NW12
1 day agoN13N14N14N12
G18
N12--NW13N11N11N9N6N7N6N4N5NW5NW3N5N5N5N5N5NW10N11
2 days agoNW9NW9NW12NW12NW12NW12NW11N9N8N6NW5NW4NW4W4CalmW3CalmW3W3W5W4W4W6N9

Tide / Current Tables for Coos Bay, Oregon
   EDIT   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Tide / Current Tables for Charleston, Oregon
   EDIT      (on/off)   Help   One Week of Data
Charleston
Click for Map
Thu -- 03:31 AM PDT     Moonset
Thu -- 04:56 AM PDT     -1.06 feet Low Tide
Thu -- 05:41 AM PDT     Sunrise
Thu -- 11:27 AM PDT     5.64 feet High Tide
Thu -- 04:27 PM PDT     2.54 feet Low Tide
Thu -- 06:50 PM PDT     Moonrise
Thu -- 09:01 PM PDT     Sunset
Thu -- 10:37 PM PDT     8.36 feet High Tide
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
6.24.42.30.5-0.7-1.1-0.60.62.13.74.95.65.5543.22.62.63.34.567.38.28.3

Weather Map
       (on/off)   Help Weather Map
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 (14,3,4,5)
      (on/off)   Help

Ground Weather Radar Station Medford, OR
   (on/off)   Help
weather_mapweather_map weather_map

Ad by Google

Cookie Policy:
This website uses cookies to save your settings. No personal information is saved. I do not collect statistics on your visit. You can disable cookies in your browser if you like but it is not recommended for this site. I do not sell cookies. Go to a bakery for that. In fact I do not sell anything. To disable cookies from L-36.com, please refer to the Help button in your browser.
Privacy Policy:
I do not sell or share any user data or anything else for that matter. The only personal information I save is in the site log which has a line for each page view which includes the IP address your browser sends in the header as well as which page you requested. I use this to block hackers and other bad actors. I do not use this raw data to create profiles on users. I periodically delete the log files. If you are subject to CCPA, Google ads on this site will not be based on your past behavior so you will likely not see an ad for a lawn mower just because you looked for one at a big box website. I do not believe this site is subject to CCPA but I am doing what I can to follow the guidelines anyway.
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 numerous 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.