Marine Weather and Tide Forecast for Winchester Bay, OR
 | Sunrise 6:25 AM Sunset 8:05 PM Moonrise 7:12 AM Moonset 11:56 PM |
Marine Forecasts
NOTE: Zones updated 4/16/2026. Some zones changed. Use Edit if needed.
PZZ350 Coastal Waters From Florence To Cape Blanco Or Out 10 Nm- 233 Am Pdt Mon Apr 20 2026
.small craft advisory in effect from 1 pm pdt this afternoon through this evening - .
Today - NE wind around 5 kt, becoming sw 20 to 25 kt with gusts up to 30 kt this afternoon. Seas 6 to 8 ft. Wave detail: S 3 ft at 5 seconds, sw 3 ft at 8 seconds and W 6 ft at 13 seconds. Rain likely.
Tonight - S wind 10 to 15 kt, becoming se 5 to 10 kt after midnight. Seas 5 to 7 ft. Wave detail: sw 5 ft at 6 seconds, W 5 ft at 11 seconds and S 2 ft at 13 seconds. Rain likely.
Tue - SE wind 5 to 10 kt, veering to W in the afternoon. Seas around 5 ft. Wave detail: W 4 ft at 10 seconds and S 2 ft at 13 seconds. Rain likely.
Tue night - NW wind 5 to 10 kt. Seas 4 to 5 ft. Wave detail: W 4 ft at 10 seconds and W 3 ft at 15 seconds. A chance of rain.
Wed - SW wind 5 to 10 kt, rising to 10 to 15 kt in the afternoon. Seas 4 to 5 ft, building to 6 ft in the afternoon. Wave detail: nw 2 ft at 5 seconds, nw 4 ft at 9 seconds and W 4 ft at 13 seconds. Rain likely.
Wed night - W wind 5 to 10 kt. Seas 7 to 9 ft. Wave detail: nw 3 ft at 5 seconds and nw 8 ft at 12 seconds. A chance of rain.
Thu - NW wind around 5 kt, veering to N in the afternoon. Seas 9 to 10 ft. Wave detail: nw 8 ft at 12 seconds and nw 2 ft at 6 seconds.
Thu night - N wind 10 to 15 kt, easing to 5 to 10 kt after midnight. Seas 7 to 8 ft. Wave detail: nw 2 ft at 5 seconds and nw 7 ft at 11 seconds.
Fri - NE wind 5 to 10 kt, becoming N 10 to 15 kt in the afternoon. Seas around 7 ft. Wave detail: N 4 ft at 5 seconds and nw 6 ft at 11 seconds.
Fri night - N wind 15 to 20 kt, easing to 10 to 15 kt after midnight. Seas 6 to 7 ft. Wave detail: N 4 ft at 5 seconds and nw 6 ft at 11 seconds.
PZZ300 233 Am Pdt Mon Apr 20 2026
Synopsis for the southern oregon coastal waters - Low pressure offshore will bring a period of active weather today, with periods of gusty south winds and elevated seas, and periods of rain and low visibility. Winds are likely to be strongest today through this evening with a period of steep seas hazardous to small craft for most the waters. Conditions should improve Tuesday as the low gradually pushes into northern california. Then, increasing nw swell follows Wednesday into Thursday with a return of north to northwest winds.
7 Day Forecast for Marine Location Near Winchester Bay, OR
NEW! Add second zone forecast
| Halfmoon Bay Click for Map Mon -- 02:17 AM PDT 8.15 feet High Tide Mon -- 06:25 AM PDT Sunrise Mon -- 08:12 AM PDT Moonrise Mon -- 09:21 AM PDT -1.47 feet Low Tide Mon -- 04:02 PM PDT 5.96 feet High Tide Mon -- 08:06 PM PDT Sunset Mon -- 09:03 PM PDT 2.86 feet Low Tide Tide / Current data from XTide NOT FOR NAVIGATION |
Halfmoon Bay, Umpqua River, Oregon, Tide feet
| 12 am |
| 6.3 |
| 1 am |
| 7.5 |
| 2 am |
| 8.1 |
| 3 am |
| 7.9 |
| 4 am |
| 6.9 |
| 5 am |
| 5.1 |
| 6 am |
| 3 |
| 7 am |
| 1 |
| 8 am |
| -0.6 |
| 9 am |
| -1.4 |
| 10 am |
| -1.3 |
| 11 am |
| -0.3 |
| 12 pm |
| 1.3 |
| 1 pm |
| 3 |
| 2 pm |
| 4.5 |
| 3 pm |
| 5.6 |
| 4 pm |
| 6 |
| 5 pm |
| 5.7 |
| 6 pm |
| 4.9 |
| 7 pm |
| 3.9 |
| 8 pm |
| 3.2 |
| 9 pm |
| 2.9 |
| 10 pm |
| 3.1 |
| 11 pm |
| 4 |
| Umpqua River entrance Click for Map Flood direction 10 true Ebb direction 190 true Mon -- 12:49 AM PDT 1.03 knots Max Flood Mon -- 04:00 AM PDT -0.00 knots Slack Mon -- 06:25 AM PDT Sunrise Mon -- 07:37 AM PDT -1.54 knots Max Ebb Mon -- 08:12 AM PDT Moonrise Mon -- 11:01 AM PDT 0.01 knots Slack Mon -- 02:02 PM PDT 1.11 knots Max Flood Mon -- 05:31 PM PDT -0.00 knots Slack Mon -- 08:06 PM PDT Sunset Mon -- 08:13 PM PDT -0.78 knots Max Ebb Mon -- 10:46 PM PDT 0.00 knots Slack Tide / Current data from XTide NOT FOR NAVIGATION |
Umpqua River entrance, Oregon Current, knots
| 12 am |
| 0.9 |
| 1 am |
| 1 |
| 2 am |
| 0.9 |
| 3 am |
| 0.5 |
| 4 am |
| 0 |
| 5 am |
| -0.6 |
| 6 am |
| -1.2 |
| 7 am |
| -1.5 |
| 8 am |
| -1.5 |
| 9 am |
| -1.3 |
| 10 am |
| -0.7 |
| 11 am |
| -0 |
| 12 pm |
| 0.6 |
| 1 pm |
| 1 |
| 2 pm |
| 1.1 |
| 3 pm |
| 1 |
| 4 pm |
| 0.8 |
| 5 pm |
| 0.3 |
| 6 pm |
| -0.2 |
| 7 pm |
| -0.6 |
| 8 pm |
| -0.8 |
| 9 pm |
| -0.7 |
| 10 pm |
| -0.4 |
| 11 pm |
| 0.1 |
FXUS66 KMFR 200932 AFDMFR
Area Forecast Discussion National Weather Service Medford OR 232 AM PDT Mon Apr 20 2026
DISCUSSION
Key Points:
* Only minor impacts expected the next several days * Low pressure off the coast will winds and precipitation - Precipitation gradually spreads inland today and tonight, with showers persisting through Wednesday.
- Breezy to gusty winds today, locally strong.
- Isolated thunderstorms possible on Tuesday.
- Advisory snowfall for mountains in Siskiyou County Mon- Tues * Drying trend towards the end of the week
An upper low offshore will approach the coast of southern Oregon and northern California late today, then remain just off the coast Tuesday before gradually moving inland across the region Tuesday night and Wednesday.
This low will send southerly moisture into the area today with showers spreading inland from the coast to the Cascades . Winds will increase out of the south today with breezy to gusty conditions affecting the area. Strong winds are expected in the Shasta Valley with gusts up to 50 mph. A wind advisory (NPWMFR) is in effect for this area. Gusty winds are also expected over higher mountains and east of the Cascades (gusts of 30 to 40 mph).
Precipitation will initially spread along the coast this morning then inland during the day with the most widespread precipitation across Curry county and southern and western Siskiyou County with more showery precipitation elsewhere.
Precipitation will be generally light to locally moderate with this system but expect showers to continue through Wednesday as the low gradually moves onshore and inland. Although initially areas from the Cascades west will be affected today, tonight and Tuesday, showers will spread inland across the area. The models and ensembles shower that showers will persist through Wednesday.
Heaviest amounts over the next 3 days are expected across western/southern Siskiyou County (1-2 inches) with moderate precipitation (0.5-1.0) in Curry County, southern Josephine County and the southern Oregon Cascades and Siskiyous. With lowering snow levels tonight into Tuesday (5000-6000 feet), expect mainly light snow accumulations in the Cascades (1-5") and mountains in Siskiyou County. One area that may see higher snowfall amounts is the the mountains near the Trinity Alps in SisKIyou County, including south of Callahan. A winter weather advisory is in effect for this area. Please see the WSWMFR for details.
In addition to rain and mountain snow, there is a slight chance (15-20%) for thunderstorms from the Cascades west on Tuesday afternoon as well. Models continue to show MUCAPE values on Tuesday continue of around 100-500 J/kg, so we are expecting at least some isolated thunder. East of the Cascades, chances for thunderstorms are around 10% on Tuesday. MUCAPE on Wednesday is lower so chances for lightning are lower (5-10%). Not expecting any severe weather but lightning and occasional strong gusts (30-45 mph) will be possible through this stretch.
Breezy winds are expected on Tuesday then winds increase slightly on Wednesday with gusty winds (25-35 mph) expected east of the Cascades.
By Thursday, upper level low will be absorbed back into the main flow. A dry north/northwesterly flow will become evident over the forecast area. While the National Blend of Models holds onto spotty PoPs Thursday onward, we are anticipating precipitation chances to dwindle Thursday and Thursday night. Model differences in the extended come to fruition around Friday night as an upper level trough drops down from the north and into the region.
However, there are significant differences on the track and strength of this trough. So confidence is low on the details for Friday into the weekend.
AVIATION
20/06Z TAFs...Rain and lower ceilings (to MVFR) will spread onto the coast this morning. Inland areas will remain mainly VFR today, then areas of MVFR ceilings spreading inland to areas west of the Cascades this evening and tonight. Winds will increase again later this morning and this afternoon for similar locations as yesterday (Shasta Valley, Medford and the East Side). Increasing southerly flow into Siskiyou County, including the Mt Shasta region, may cause lowering ceilings (to MVFR) beginning late this afternoon and continuing tonight along with rain and high elevation snow (above 5000 feet). Precipitation will be more showery north of the Siskiyous.
MARINE
Updated 100 AM PDT Monday, April 20, 2026...Low pressure offshore will bring a period of active weather today into tonight, with periods of gusty south winds and elevated seas/swell. Winds are likely to be strongest through this evening with a period of steep seas hazardous to small craft mostly beyond 10 NM from shore and for areas within 10 NM of shore from Cape Blanco north. Conditions should improve Tuesday as the low gradually pushes into Northern California. Then, increasing NW swell follows Wednesday into Thursday with a return of north to northwest winds.
MFR WATCHES/WARNINGS/ADVISORIES
OR...None.
CA...Winter Weather Advisory from 11 AM this morning to 11 AM PDT Tuesday for CAZ080>082.
Wind Advisory from 8 AM this morning to 6 PM PDT this evening for CAZ081.
PACIFIC COASTAL WATERS...Small Craft Advisory from 1 PM this afternoon to 8 PM PDT this evening for PZZ350.
Small Craft Advisory until 8 PM PDT this evening for PZZ370-376.
Area Forecast Discussion National Weather Service Medford OR 232 AM PDT Mon Apr 20 2026
DISCUSSION
Key Points:
* Only minor impacts expected the next several days * Low pressure off the coast will winds and precipitation - Precipitation gradually spreads inland today and tonight, with showers persisting through Wednesday.
- Breezy to gusty winds today, locally strong.
- Isolated thunderstorms possible on Tuesday.
- Advisory snowfall for mountains in Siskiyou County Mon- Tues * Drying trend towards the end of the week
An upper low offshore will approach the coast of southern Oregon and northern California late today, then remain just off the coast Tuesday before gradually moving inland across the region Tuesday night and Wednesday.
This low will send southerly moisture into the area today with showers spreading inland from the coast to the Cascades . Winds will increase out of the south today with breezy to gusty conditions affecting the area. Strong winds are expected in the Shasta Valley with gusts up to 50 mph. A wind advisory (NPWMFR) is in effect for this area. Gusty winds are also expected over higher mountains and east of the Cascades (gusts of 30 to 40 mph).
Precipitation will initially spread along the coast this morning then inland during the day with the most widespread precipitation across Curry county and southern and western Siskiyou County with more showery precipitation elsewhere.
Precipitation will be generally light to locally moderate with this system but expect showers to continue through Wednesday as the low gradually moves onshore and inland. Although initially areas from the Cascades west will be affected today, tonight and Tuesday, showers will spread inland across the area. The models and ensembles shower that showers will persist through Wednesday.
Heaviest amounts over the next 3 days are expected across western/southern Siskiyou County (1-2 inches) with moderate precipitation (0.5-1.0) in Curry County, southern Josephine County and the southern Oregon Cascades and Siskiyous. With lowering snow levels tonight into Tuesday (5000-6000 feet), expect mainly light snow accumulations in the Cascades (1-5") and mountains in Siskiyou County. One area that may see higher snowfall amounts is the the mountains near the Trinity Alps in SisKIyou County, including south of Callahan. A winter weather advisory is in effect for this area. Please see the WSWMFR for details.
In addition to rain and mountain snow, there is a slight chance (15-20%) for thunderstorms from the Cascades west on Tuesday afternoon as well. Models continue to show MUCAPE values on Tuesday continue of around 100-500 J/kg, so we are expecting at least some isolated thunder. East of the Cascades, chances for thunderstorms are around 10% on Tuesday. MUCAPE on Wednesday is lower so chances for lightning are lower (5-10%). Not expecting any severe weather but lightning and occasional strong gusts (30-45 mph) will be possible through this stretch.
Breezy winds are expected on Tuesday then winds increase slightly on Wednesday with gusty winds (25-35 mph) expected east of the Cascades.
By Thursday, upper level low will be absorbed back into the main flow. A dry north/northwesterly flow will become evident over the forecast area. While the National Blend of Models holds onto spotty PoPs Thursday onward, we are anticipating precipitation chances to dwindle Thursday and Thursday night. Model differences in the extended come to fruition around Friday night as an upper level trough drops down from the north and into the region.
However, there are significant differences on the track and strength of this trough. So confidence is low on the details for Friday into the weekend.
AVIATION
20/06Z TAFs...Rain and lower ceilings (to MVFR) will spread onto the coast this morning. Inland areas will remain mainly VFR today, then areas of MVFR ceilings spreading inland to areas west of the Cascades this evening and tonight. Winds will increase again later this morning and this afternoon for similar locations as yesterday (Shasta Valley, Medford and the East Side). Increasing southerly flow into Siskiyou County, including the Mt Shasta region, may cause lowering ceilings (to MVFR) beginning late this afternoon and continuing tonight along with rain and high elevation snow (above 5000 feet). Precipitation will be more showery north of the Siskiyous.
MARINE
Updated 100 AM PDT Monday, April 20, 2026...Low pressure offshore will bring a period of active weather today into tonight, with periods of gusty south winds and elevated seas/swell. Winds are likely to be strongest through this evening with a period of steep seas hazardous to small craft mostly beyond 10 NM from shore and for areas within 10 NM of shore from Cape Blanco north. Conditions should improve Tuesday as the low gradually pushes into Northern California. Then, increasing NW swell follows Wednesday into Thursday with a return of north to northwest winds.
MFR WATCHES/WARNINGS/ADVISORIES
OR...None.
CA...Winter Weather Advisory from 11 AM this morning to 11 AM PDT Tuesday for CAZ080>082.
Wind Advisory from 8 AM this morning to 6 PM PDT this evening for CAZ081.
PACIFIC COASTAL WATERS...Small Craft Advisory from 1 PM this afternoon to 8 PM PDT this evening for PZZ350.
Small Craft Advisory until 8 PM PDT this evening for PZZ370-376.
| Stations | Dist | Age | Wind | Air | Water | Waves | inHg | DewPt |
| 46229 - UMPQUA OFFSHORE, OR (139) | 20 mi | 46 min | 52°F | 53°F | 6 ft | |||
| CHAO3 - 9432780 - Charleston, OR | 24 mi | 40 min | W 1.9G | 29.82 | ||||
| SNTO3 | 28 mi | 46 min | 0 | 49°F | 29.86 | 48°F |
Wind History for Port Orford, OR
toggle option: (graph/table)
| Airport | Dist | Age | Wind kt | Vis | Sky | Weather | Air | DewPt | RH | inHg |
Link to 1 hour of 5 minute data for KOTH
Terminal Aerodrome Forecast (TAF) for KOTH
Wind History Graph: OTH
(wind in knots)
GEOS Local Image of Pacific Northwest
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Medford, OR,
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