2024 Grape Growing and Weather Thread

SB county fire near vineyards


First signs of veraison, along with some heat damage. Laguna Ridge, RRV, clone 777 PN.

Fortunately NWS got it wrong again: Yesterday’s forecast 101 but the high measured 93. Today originally called for 101 again but now they are saying 92.

In any case we escaped fruit damage for now.

LA times listed highs that may have caused sunburn elsewhere in CA, however. Sacramento area, and Hopland vicinity posted highs of 108-111.

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Are there commercial forecasts that you find more accurate? if so, which ones?

For what specific location ? I’m curious . NWS is usually pretty accurate .

  1. Eastern Ventura county, CA
  2. Not on a routine basis, but for big events the forecast postings / alerts of climate scientist Daniel Swain seem very accurate (For California). You can sign up (free) to receive bulletins when he publishes them

(BTW the comments can be interesting. Many of Daniel’s followers are weather geeks and provide good info)

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Bump

Significant wildfire smoke over Oregon, Idaho, and extreme N. Cal

https://www.star.nesdis.noaa.gov/GOES/sector_band.php?sat=G18&sector=psw&band=GEOCOLOR&length=24

Anyone reporting from Oregon?

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I don’t see anything (or sense anything) from my part of the valley in the Eola Amity Hills. I haven’t been south in the valley in a few weeks, so no report from down by those AVAs

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The Shelly Fire has been burning for some time now in N Cal, with some additional smoke earlier on coming from the now-contained Salt Creek fire in S Oregon.

Total smoke exposure in the Rogue Valley has been pretty low. Nothing compared to last year, at least so far.

Pretty standard fare for that part of the world. I used to do fieldwork on Mt Shasta and we’d commonly sit on the mountain in the evenings and watch the fires in the distance, knowing that we could always go above tree line and drink from the glaciers if need be.

Edit to add: no concerns anywhere in the Willamette at the moment.

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There has been significant fire activity in eastern Oregon so far this summer. Four 100,000+ acre fires. Rough time out there. Fortunately not many people.

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Around the Napa Valley color has arrived! This is from Oak Knoll.

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Pinot Noir at the Elk Cove winery estate.

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Warmer, cooler, and possibly hot again in August

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The smoke plume from the Park fire* near Chico is huge (and sad)

https://www.star.nesdis.noaa.gov/GOES/sector_band.php?sat=G18&sector=psw&band=GEOCOLOR&length=24

*arson: Massive Park fire sparked by man pushing burning car into a gully, officials say

Can’t fix stupid?

Daniel Swain on this fire and general risks

Game on: veraision in the Grenache. This year having some problems with powdery mildew (visible on one of the leaves in the image) even though maintaining spray program as every year. Every season has its own challenges…

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Hey Kim, is that typical moderate shatter for Grenache?

Typical, at least for our vineyard. As you know Grenache is heavy-bearing and can produce large compact clusters with tightly packed berries that can promote internal mildew. Our clusters with some shatter seem better and less prone to mildew.

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