• Sailing is all about the Weather.

    Big into the exploration of Atlantic Hurricanes since Katrina came uninvited into his world, James (Jim) Gurley (JamesG161) has followed every Tropical Storm birthed in Atlantic, Gulf and Caribbean waters since. Being a boater, he knows that we often need more time to prepare than we get from the TV weather folk. Jim relies on the science of storm development to share early warning info with friends and fellow boaters.

    Early in 2018, Jim and John Shepard, (JSSailem) started to chat about the weather data available. John asked Jim to help forecast Pacific NW storms, and this morphed into discussions on weather forecasting.

    For John, sailing in the PNW is sometimes hit and miss. One day is ugly, then a string of beautiful days but no wind, followed by a series of blue-sky days and 12 knot breezes. Being ready for those great sailing days means you need to look to the Pacific Ocean and what is brewing. John has been into Pacific NW Weather since the 1970’s when his first PNW November storm hit bringing more than 40 days and 40 nights of continual rain.

    Together we want to share information, new APPs, safety, and thoughts about letting the weather help you. Identify some of the resources for sailors and help prepare you for your next sailboat outing.

    It is far better to go out on the water knowing what to expect in weather terms, than to be out on the water and see dark ominous clouds suddenly appear, unprepared.

June 2023 As Cruising season gets under way...

jssailem

jssailem

SBO Weather and Forecasting Forum Jim & John
Oct 22, 2014
21,206
CAL 35 Cruiser #21 moored EVERETT WA
The next couple of weeks look to be nice for those who seek early summer cruising adventures. Nice days to be at anchor...

From my friend Rufus:
Monday June 5​
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No big change in the weather is expected over the next 12 days. We could stop there, but details always go well with your morn’n beverage. ​
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A few warm-to-hot days; a few mild, with onshore winds. Still dry. The onshore breeze will weaken by tomorrow, with temps responding by popping up into the high 80s to lower 90s across much of the PNW. It will cool back down again beginning Wed, with the winds remaining weak through Sat, other than a notable westerly through the Columbia Gorge (to the delight of windsurfers). East side showers/thunderstorms possible Fri & Sat.​
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The week of Jun 12-16 will remain generally dry, with notable onshore W-to-NW winds picking back up again (frustrating growers that need to apply crop protection treatments). We should also note that Thu & early Fri may bring on a very weak, cool air Low over the Puget Sound, with increasing clouds and chance for a stray shower as far south as Portland. More of a cloud event, not a rain pattern. It will turn cooler.​
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The weekend of Jun 17,18 is trending dry, but cooler under the colder air aloft the moved in per the system mentioned above. ​
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Rain Watch: early yet, but we are seeing the potential for a wet June system that could arrive by Mon Jun 19. What’s changing? Well, the high pressure ridge that has stationed to our west is modeled to drift farther west, opening the door for cooler air, along with weak Low pressure troughs, to move down the Alaskan Panhandle & BC coast for a slightly cooler pattern around the region. Very typical for June. We’ll monitor closely, as this “dirty ridge” pattern could hold for a week or more, yielding a round or two of precipitation as the second half of June runs its course. ​
 
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