Thursday, July29, 2021
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Marine Weather and Tides
Williams, OR

Version 3.4
NOTICE
3/30/2021 -- ANZ330 has been split into ANZ331 and ANZ332. Click EDIT in Marine Forecast and select your new zone.
1/26/2021 -- The West Coast Satellite images havd been updated. They now use GEOS-17.
1/1/2021 -- The 7 day forecast are now working well. Thank you NOAA for your support.

Sunrise 6:01AMSunset 8:37PM Thursday July 29, 2021 8:26 AM PDT (15:26 UTC) Moonrise 10:53PMMoonset 11:03AM Illumination 73% Phase: Waning Gibbous; Moon at 20 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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PZZ356 Coastal Waters From Cape Blanco Or To Pt. St. George Ca Out 10 Nm- 214 Am Pdt Thu Jul 29 2021
.small craft advisory in effect through Saturday evening...
Today..NW wind 5 to 10 kt. Within 5 nm of brookings southward, wind variable less than 5 kt...becoming N 5 kt early in the morning, then...backing to nw in the late morning and afternoon. Wind waves 3 to 5 ft. Mixed swell sw 1 ft at 14 seconds and nw 1 ft at 7 seconds.
Tonight..N wind 5 to 10 kt. Within 5 nm of brookings southward, nw wind 10 kt until early morning...becoming variable less than 5 kt. Wind waves 3 to 5 ft. Mixed swell sw 1 ft at 12 seconds and W 1 ft at 7 seconds.
Fri..NW wind 5 to 15 kt. Within 5 nm of brookings southward, wind variable less than 5 kt...becoming nw 5 kt in the late morning and afternoon. Wind waves 3 to 5 ft. Mixed swell sw 1 ft at 14 seconds and W 1 ft at 8 seconds.
Fri night..N wind 5 to 15 kt. Within 5 nm of brookings southward, nw wind 10 kt in the evening... Becoming variable less than 5 kt. Wind waves 3 to 5 ft. Mixed swell sw 1 ft and W 1 ft.
Sat..Northern portion, N wind 15 to 20 kt. Brookings southward, nw wind 5 kt...becoming 5 to 10 kt in the afternoon. Wind waves 3 to 4 ft. Mixed swell sw 1 ft and W 1 to 2 ft.
Sat night..N wind 15 to 20 kt northern portion and N 10 to 20 kt brookings southward. Wind waves 3 to 4 ft. Mixed swell sw 1 ft and W 2 ft.
Sun..N wind 15 to 20 kt. Wind waves 4 to 5 ft. Mixed swell sw 1 ft and W 2 ft.
Mon..N wind 15 to 20 kt. Wind waves 5 ft. Mixed swell sw 1 ft and W 2 ft.
PZZ300 214 Am Pdt Thu Jul 29 2021
Synopsis for the southern oregon coastal waters high pressure centered to the west and lower pressure inland will continue to bring general north winds to the coastal waters through at least early next week. Northerly winds and seas are expected to increase and steepen to advisory levels Thursday morning for much of the area south of cape blanco and are likely to continue through the weekend and into early next week.


7 Day Forecast for Marine Location Near Williams, OR
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location: 42.12, -123.35     debug


Area Discussion for - Medford, OR
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FXUS66 KMFR 291000 AFDMFR

Area Forecast Discussion National Weather Service Medford OR 300 AM PDT Thu Jul 29 2021

DISCUSSION. 29/00Z NAM/GFS/EC in.

There was a major earthquake near the Alaska Peninsula Wednesday evening, but the generated tsunami was small and there is no threat to the southern Oregon coast at this time.

The Medford forecast area remains under south to southwest flow aloft between a long wave trough in the Gulf of Alaska and a strong high over the central U.S. This pattern is not going to change much initially.

It will be very hot over the inland areas Thursday and Friday, and heat risk is a concern west of the Cascades. High temperatures will be in the lower to mid 100s in the valleys of Douglas, Josephine, Jackson and western/central Siskiyou Counties. Overnight lows will remain quite warm, in the mid 60s to lower 70s, offering little relief from the heat. An excessive heat warming (NPWMFR) remains in effect for these areas Thursday afternoon through Friday evening.

Monsoonal moisture will continue to stream over the area. This, combined with strong surface heating, will support isolated to scattered thunderstorms and showers over areas inland of the Coast Range. The highest surface based lifted indices, ranging from -1.5 to -4.0, are over western Siskiyou county, extending north and east over Josephine and Jackson counties, then up the Cascades into northern Klamath county. 850 mb based lifted indices highlight roughly the same area.

On Friday, the best lifted indices are less widespread, with the favored areas being area area arcing from the Mount Shasta area northwest into the Kalmiopsis and the northern Cascades. However, a stronger short wave will move through during maximum surface heating, so convection may actually be more widespread Friday, especially east the the Cascades.

The ridge will retrograde and amplify this weekend while the offshore trough moves northeast. However, increased cloud cover will make for a significantly cooler, but still hot, day Saturday. Sunday and Monday won't be much different in that regard. Afternoon and evening thunderstorms will continue, but due to reduced surface heating, the location and coverage will depend more on the trajectory of short waves embedded in the upper level flow. That is an uncertain forecast at this time.

The ridge will weaken Monday through Thursday while the trough remains in place. Flow aloft will turn more westerly with time , and this will cut off the flow of monsoonal moisture. Therefore, the Tuesday forecast moves the area of showers and thunderstorms off to Lake County Tuesday, and Wednesday and Thursday look to be dry. Temperatures won't change much, as the cooling of the air mass will be roughly balanced by heating due to less cloud cover.

AVIATION. For the 29/06Z TAF Cycle . LIFR ceilings have moved into locations along the coast tonight and those ceilings will likely persist into the early morning hours. Eventually, these ceilings will burn off shortly after sunrise.

Smoke from wildfires is not too much of an issue per monitoring sensors and satellite, except for the Jack Fire east of KRBG and west of Diamond Lake. However, the smoke from the Jack fire is confined to a small area right around the fire.

We'll see scattered thunderstorms develop along and near the Cascades, Siskiyous, and Marble Mountains later this afternoon and evening. Expect little in the way of rain, yet look for gusty winds near any thunderstorms that do form. -Smith

MARINE. Updated 225 AM PDT Thursday 29 July 2021 . There was a earthquake of magnitude of 8.2 detected near the Alaska Peninsula Wednesday evening. The tsunami warning center has determined there is no tsunami threat for the Oregon or California coastline.

Otherwise, high pressure centered to the west and lower pressure inland will continue to bring general northerly winds to the coastal waters through at least early next week. The ingredient that will roughen up the seas a bit is the northerly winds over the south of Cape Blanco due to a weak to moderate thermal trough developing Thursday morning and continuing into early next week. Models begin to differ around Tuesday, with some expecting northerlies to increase and others showing them decreasing. ~BTL/Smith

FIRE WEATHER. Updated 300 AM Thursday 29 July 2021 . Deep southerly flow will continue to bring monsoonal moisture into the area through Monday. It will be quite hot through Friday over the inland areas, especially the west side, with the hottest day on Friday.

High resolution model guidance is showing some terrain-based thunderstorm initiation on Thursday over portions of Siskiyou county in California as well as over the Cascades and the Umpqua Divide in Oregon. Additionally, a weak short wave will move in from the south which could initiate some additional convection during peak heating in northern Klamath County. A Red Flag Warning remains in effect for portions of Fire Zone 280 in California and for portions of Fire Zones 621, 622, 623, 617, and 624 in southern Oregon. Elsewhere, the triggers remain relatively weak and isolated storms will be possible east of the Cascades.

A similar set up will occur on Friday, but with additional moisture moving in at the mid levels and a stronger trigger moving up from the south, the chances for scattered thunderstorms will spread over a larger area of southern Oregon and northern California, including areas east of the Cascades. A Fire Weather Watch remains in effect Friday afternoon and evening for most of the areas covered by the Thursday Red Flag Warning, with the addition of portions of Klamath, Lake, and Modoc Counties. See RFWMFR for more details.

It is worth noting that some of our west side valleys could experience thunderstorms should our high resolution guidance be on track, but these storms will likely flow over the valleys from the surrounding mountains, and be more isolated in nature, this is especially true for Fire zones 620 and 622 both Thursday and Friday.

The moisture will continue moving into our area throughout the weekend, bringing additional cloud cover, some cooler temperatures this weekend, and hopefully some widespread showers. Instability remains relatively high; so a few showers may produce some lightning, but storms should remain isolated despite the scattered nature of showers over the weekend.

Thunderstorm chances will be limited to Lake County Tuesday, and Wednesday and Thursday look to be dry.

MFR WATCHES/WARNINGS/ADVISORIES. OR . Fire Weather Watch from Friday afternoon through Friday evening for ORZ617-621>625. Excessive Heat Warning from 11 AM Thursday to 11 PM PDT Friday for ORZ023-024-026. Red Flag Warning from 2 PM to 11 PM PDT Thursday for ORZ617-621>624.

CA . Fire Weather Watch from Friday afternoon through Friday evening for CAZ280-281-284-285. Red Flag Warning from 2 PM to 11 PM PDT Thursday for CAZ280. Excessive Heat Warning from 11 AM Thursday to 11 PM PDT Friday for CAZ080>082.

Pacific Coastal Waters . Small Craft Advisory from 5 AM Thursday to 11 PM PDT Saturday for PZZ356-376.

15/15/11


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CECC1 - 9419750 - Crescent City, CA 51 mi57 min S 2.9 G 4.1 56°F 60°F1015.4 hPa
46027 - ST GEORGES - 8NM West Northwest of Crescent City, CA 58 mi47 min NNW 3.9 G 5.8 51°F1016 hPa
PORO3 - 9431647 - Port Orford, OR 74 mi57 min NW 19 G 24 56°F 48°F1016.4 hPa

Wind History for Crescent City, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Rogue Valley International Airport, OR31 mi34 minN 010.00 miFair71°F56°F59%1016 hPa

Link to 5 minute data for KMFR

Wind History from MFR (wind in knots)
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Last 24hrCalmCalmCalm535NW6NE6N8NW8NW11NW10N6NW3CalmSW3CalmS5CalmCalmCalmCalmNE3Calm
1 day agoS3NW5NW5NW3CalmCalmNW4CalmNW3CalmCalmCalmCalmCalmNE3CalmCalmCalmW3CalmCalmCalmCalmCalm
2 days agoN336NW34N5W9
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Tide / Current Tables for Brookings, Chetco Cove, Oregon
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Brookings
Click for Map
Thu -- 03:48 AM PDT     5.73 feet High Tide
Thu -- 06:07 AM PDT     Sunrise
Thu -- 10:13 AM PDT     0.83 feet Low Tide
Thu -- 12:07 PM PDT     Moonset
Thu -- 04:49 PM PDT     6.30 feet High Tide
Thu -- 08:38 PM PDT     Sunset
Thu -- 11:08 PM PDT     2.05 feet Low Tide
Thu -- 11:56 PM PDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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344.95.65.75.34.53.32.21.30.811.82.94.25.46.16.35.95.14.13.12.42.1

Tide / Current Tables for Crescent City, California
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Crescent City
Click for Map
Thu -- 03:47 AM PDT     5.73 feet High Tide
Thu -- 06:08 AM PDT     Sunrise
Thu -- 10:09 AM PDT     0.83 feet Low Tide
Thu -- 12:06 PM PDT     Moonset
Thu -- 04:48 PM PDT     6.30 feet High Tide
Thu -- 08:37 PM PDT     Sunset
Thu -- 11:04 PM PDT     2.05 feet Low Tide
Thu -- 11:56 PM PDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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3.144.95.65.75.34.43.32.11.20.811.834.35.46.16.35.95.1432.32.1

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NOTE: This section has been updated as of 1/26/2021. If the image you are expecting is not showing, please let me know. You may use the EDIT function to update your location.
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