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First bucket tip (Re: highlights from 2017-18 North CA rainy season)

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Dear WeatherCat West Coast drought sufferers,

Over a space of about a week, I've had two potential rain events where a low pressure center from the north interacted with some warm southern monsoonal flow.  Monday night we had a considerable amount of lightning and a few brief showers - but none sufficient to cause the rain gauge to tip.  This morning we had one last shower event that was sufficient to "tip da' bucket."

That leaves the statistics in an interesting state according to the WeatherCat comparison with past Septembers:

It does feel hotter, calmer, and drier than in the past.  The summer appears to last longer and the storms are later in coming.  Still the Autumnal Equinox is only 9 days away.  Here is the exact day and time for your location:

With the celestial start of Autumn there is hope for a change in the weather.

Cheers, Edouard

Your little storm gathered up some moisture as it climbed over the Sierras and dropped .13 at my home late this afternoon. Keep 'em coming. The last two months have been unusually dry after such a wet winter.

Dear WeatherCat observers of the season's turning,

In California there is a period when storms pass to our North and East and cause rapid changes in pressure.  Those changes are responsible for the off-shore wind events like the famous Santa Anas.  Last night we had one such event it was indeed very windy.  Here is the "blow by blow" as captured by my "WC Storm Monitor" AppleScript:

Over 6 hours of high winds are very unusual for my AppleScript to capture.  The peak gust of 26 mph (42 kph) was the strongest gust observed in all of 2017 and the strongest gust ever observed in October since the station went up in 2009.  Since my anemometer is very much wind sheltered, the actual gust that generated the reading could have easily been double that.

Off-shore wind events also result in extremely low humidities.  The humidity range for today has been only 18% to 28%.  The combination of high winds and low humidities are a recipe for fire disaster.  The San Francisco East Bay hills lucked out with no significant fires starting.  Alas the San Francisco North Bay wasn't so lucky:

It goes to show you that we need to be aware of the all the ways weather can potentially put us into harm's way.


Impressive use of those Apple Scripts, not to mention the weather itself.

"The combination of high winds and low humidities are a recipe for fire disaster."
Tragic. Where we choose to live often has dangers we don't want to acknowledge.


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