Delta Ditch Run Forecast

Weather Routing Inc. predicts a “good day” for tomorrow’s Delta Ditch Run from Richmond to Stockton.

Synopsis

“A thermal trough (low pressure) is situated across interior California. The trough will expand westward toward the California coast and adjacent Pacific waters east of 125°N and weaken on the 1st. Farther west, a ridge of high pressure is found just off the California Coast from near Point Conception northward, extending westward across adjacent offshore waters, and will slowly drift westward over the next three days or so, changing little in intensity.”

California weather graphics
The big picture.
© 2019 Weather Routing Inc.

Hedge Forecast

“While a general southwest to west wind regime will be in place, winds will actually tend nearer to the high ends of the forecast ranges during the afternoon hours, as afternoon land/sea thermal differences increase with daytime heating. Other than this, forecast confidence is above average.”

Conclusions

“Conditions this morning, outside of areas of tightened pressure gradients will remain southwesterly in nature and within reason inside the race area. Throughout the day today and into the early evening hours, expect increasing southwesterly winds due to diurnal surges of southwesterlies with higher gusts channeling into more narrow passages. A similar pattern of lower winds in the morning/overnight and increasing conditions in the later afternoon/early evening will ensue tomorrow, though the diurnal surges appear slightly stronger tomorrow afternoon. Within these areas of higher winds, a slight wind chop is expected with areas of higher southwesterly fetch. Otherwise, expect seas to be quite low.”

Wind and waves forecast
During tomorrow’s Ditch Run, expect breeze to build from 10 knots into the teens, with gusts topping out around 21. Wind waves of up to four feet are possible. Catch one and surf it, baby!
© 2019 Weather Routing Inc.

View this forecast online at www.wriwx.com/clientproduct.php?id=8875. We’ll see you on the water!

Leave a Comment

Sailors Rescued
No one would have expected one of the Southern Hemisphere’s best-known and most-traveled yachts to be lost at sea en route to the start, but that’s exactly what happened to Brian Petersen’s Auckland, New Zealand-based Elliott 50 Ran Tan II.
California Offshore Race Week
They're off. And they're almost there (or already finished, by the time you read this). Three 70-ft trimarans made a brief appearance on San Francisco Bay as they tuned up and got ready to blast down the coast in the inaugural California 500 race from San Francisco to San Diego.
Buy or Sell Marine Gear
Buy, sell, trade your used or new marine equipment, supplies, rigging, boating gear and anything & everything marine.
Hot Off the Presses
Happy June, Latitude Nation. We are celebrating the more-or-less start of summer with nothing less than a brand-new issue of Latitude 38.