Cape Shoalwater WA to Cascade Head OR out 10 NM Marine Forecast
| Rest Of Today...Sw Wind 5 Kt. Wind Waves Sw 1 Ft At 4 Seconds. Nw Swell 2 Ft At 9 Seconds. Widespread Dense Fog In The Morning. Areas Of Dense Fog In The Afternoon. |
| Tonight...Nw Wind To 5 Kt. Wind Waves Nw 1 Ft At 4 Seconds. Nw Swell 2 Ft At 9 Seconds. Areas Of Dense Fog In The Evening. Patchy Dense Fog After Midnight. |
| Wed...N Wind 5 To 10 Kt. Wind Waves N 1 Ft At 4 Seconds. Nw Swell 2 Ft At 9 Seconds. |
| Wed Night...N Wind 5 To 10 Kt. Wind Waves N 2 Ft At 4 Seconds. Nw Swell 3 Ft At 9 Seconds. |
| Thu...Ne Wind To 5 Kt, Backing To Nw In The Afternoon. Wind Waves Ne 1 Ft At 4 Seconds, Shifting To The Nw At 4 Seconds In The Afternoon. Nw Swell 3 Ft At 10 Seconds. |
| Thu Night...Nw Wind 5 Kt. Wind Waves N 1 Ft At 4 Seconds. Nw Swell 3 Ft At 10 Seconds. |
| Fri...Nw Wind 5 To 10 Kt. Wind Waves 2 Ft. Nw Swell 4 Ft. |
| Sat...Nw Wind 5 To 10 Kt. Wind Waves 2 Ft. Nw Swell 4 Ft. |
| Area Forecast Discussion ...CORRECTION National Weather Service Portland OR 1032am PDT Tuesday Jun 30 2026 Updated aviation discussion. Synopsis Cool onshore flow and persistent cloud cover will maintain below average temperatures over the area through Thursday with little change in the overall weather pattern. Conditions will be mainly dry aside from a few stray sprinkles, mainly over higher terrain. A gradual warming trend develops Friday into the holiday weekend with inland valleys likely warming above 80 degrees by the 4th of July (70-90% chance). Tuesday through Monday night...Conditions today will be very similar to what was observed yesterday as moist onshore flow continues, bringing persistent cloud cover and below average high temperatures mainly in the 60s. Conditions will be mainly dry aside from a few stray sprinkles, mainly over higher terrain. This "wash-rinse-repeat" weather pattern will hold steady on Wednesday as well, resulting in another mostly cloudy day with highs mainly in the 60s to near 70 degrees. There is minimal change to the weather pattern for Thursday too, aside from temperatures aloft warming a few degrees. As a result, temperatures on Thursday are expected to be slightly warmer with highs most likely in the low to mid 70s for most inland valley locations and 60s at the coast. That being said, there is a 5-15% chance inland valleys will stay stuck in the 60s for highs on Thursday, which would occur if skies remain mostly cloudy through the day. Regardless of the outcome, temperatures will still be running a bit below average for early July as average high temperatures for inland valleys are in the upper 70s for July 2. Confidence increases for a more noticeable warm-up Friday into the upcoming holiday weekend due to the arrival of weak upper level ridging and less cloud cover during peak heating hours. The NBM continues to show a 70-90% chance for highs above 80 degrees by the 4th of July for inland valleys while the coast stays in the 60s. Probabilities for highs above 80 degrees decrease slightly to 60-80% on Sunday and Monday, however highs somewhere in the 80s remains the most likely outcome. One change from yesterday's NBM guidance is a slight lowering of probabilities for highs above 90 degrees. Probabilities for highs above 90 degrees this weekend have lowered to 1-10%, suggesting abnormally hot conditions and heat-related impacts are unlikely to occur. -23 Marine Northwest winds around 10 to 20 kt with steep seas near 7 to 10 ft at 9 to 10 seconds driven mainly by a northwest swell continue today through early Wednesday. Given steep seas and wind gusts upwards of 20 kt, a Small Craft Advisory remains in effect for both the inner and outer waters through late Wednesday morning, except through early Wednesday morning for the central and southern inner waters. Rough bar conditions are also expected within the main channel of the Columbia River Bar through late Tuesday morning with steep seas around 7 to 9 ft at 9 to 10 seconds and northwest winds around 10 to 15 kt. Conditions over the bar will be particularly steep and choppy between 3-8am PDT Tuesday during a strong ebb current. Therefore, a Small Craft Advisory remains in effect for the Columbia River Bar through 11 AM PDT Tuesday. Winds and seas will ease significantly Wednesday afternoon and evening, with benign conditions expected Thursday and Friday. Seas are expected to range between 4 and 6 ft Wednesday night through the upcoming weekend, with north to northwest winds continuing. Northerly winds do increase in strength over the weekend, especially during the afternoon and evening hours when gusts up to 20-25 kt are expected. -23 NOAA Portland OR Office: Watches - Warnings - Advisories OR...None. WA...None. PZ...Small Craft Advisory until 11am PDT this morning for PZZ210. Small Craft Advisory until 11am PDT Wednesday for PZZ251- 271>273. Small Craft Advisory until 2am PDT Wednesday for PZZ252-253. |
Portland OR Radar
Northwest Radar