• 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.

Chesapeake Bay Area. Possibilities

Apr 12, 2007
197
Hunter 420 Herrington Harbor South
I did some looking around from Baltimore down to the Potomac. Looks like Point Lookout, (near Potomac), is going to have the strongest sustained winds but the largest gusts seem to be in the Balitmore area with one at 55kts this morning. Thomas Point, near Annapolis, sustained wind ~ 20kts gusts 30-35kts. Gooses Reef, ~50NM south of Annapolis about the same just a little higher. Cove Point, (Solomons area) mid 20's with 30kt gusts. Point Lookout, sustained winds high 20's + with high 30's gusts. And of course, Gail warning all around.
 

jssailem

SBO Weather and Forecasting Forum Jim & John
Oct 22, 2014
22,161
CAL 35 Cruiser #21 moored EVERETT WA
The event is likely to subside by evening. What's been happening on the east shore of the Bay? There is a bit of fetch for the wind to kick up some waves and create a surge. Normally, the Bay sees minimal tidal change (about 12 inches). Docks are built close to the water level. With the winds are we seeing this causing issues?
 

pgandw

.
Oct 14, 2023
92
Stuart (ODay) Mariner 19 Yeopim Creek
The shore side of the Outer Banks is forecast 1-2ft above ground level (minor flooding potential) due to strong south westerlies pushing Albemarle and Roanoke Sounds east. Pamilico Sound is forecast to have low water, but not enough for a low water level advisory.

Fred W
 
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May 1, 2011
4,698
Pearson 37 Lusby MD
Neither Solomons nor Cove Point Wx Buoys showed any significant wind gusts; however, Gooses Reef (slightly farther north) had those significant wind gusts!
Gooses_Reef_1428_20241205.jpg
 

jssailem

SBO Weather and Forecasting Forum Jim & John
Oct 22, 2014
22,161
CAL 35 Cruiser #21 moored EVERETT WA
Good Morning, all. By now, the winds of December have moved to the Atlantic. It was not the worst storm, for sure, to make its presence known. I hope all are ready for improving weather and the fun-filled holidays.

Looking at the big picture, much of the weather patterns we experience are driven by the ENSO current conditions that occurred 8-12 months ago. Last January, NOAA predicted a disaster-filled hurricane season. The cause was the dramatic change in the ENSO current flow. The conditions for 2023 were identified as El Niño. The ENSO readings were beginning to fall rapidly. This created the expectation of a La Niña condition. The rapid change in the current was observed and expressed as "serious climate change," resulting in "Above Normal 2024 Atlantic Hurricane Season" (NOAA predicts above-normal 2024 Atlantic hurricane season)

The rush to make predictions before all the data is available has proven error-prone. The 2024 ENSO rate of change slowed. The predicted La Niña condition did not materialize. Instead, we have moved to a stage known as "Neutral."

What does all this mean... volatility in forecasts.
What would a La Niña winter look like in the Northern Hemisphere? This NOAA chart helps.

1733506441337.png

During La Niña, the Pacific jet stream often meanders high into the North Pacific. Southern and interior Alaska and the Pacific Northwest tend to be cooler and wetter than average, and the southern tier of U.S. states—from California to the Carolinas—tends to be warmer and drier than average. Farther north, the Ohio and Upper Mississippi River Valleys may be wetter than usual. Climate.gov image.​

La Niña conditions usually bring a warmer, drier winter to the Chesapeake Bay and the Atlantic Coast. This winter's weather patterns could be more pleasant than the winter of 2023.

Time will tell if the conditions develop. It is weather, and weather is fickle.
 
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