"10 Year" storm for California - Spillway Collapse Update

Tuesday is supposed to be a big one too :roll:

Yup, and if the rainfall predictions pan out, we could be in for a rough ride. I remember the problems we had in 1986 and 1997 very well.

[size=83]Excessive rain, melting snow may cause worst California flooding since 1997

An onslaught of excessive rain and mountain snow will threaten lives and property in northern and central California into next week.

“There is the potential for excessive rain, combined with melting snow to trigger the worst flooding in northern California since 1997 and perhaps 1986,” according to Senior Vice President of AccuWeather Enterprise Solutions Mike Smith.

The storm rolling ashore this weekend will not be in a hurry to leave. Another will quickly follow Tuesday into Tuesday night.
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http://www.accuweather.com/en/weather-news/weekend-storm-to-unload-widespread-heavy-rain-in-western-us/70000459

The Santa Cruz mountains mudslides in 1982(?) were quite an event too.

Yes, it was 1982. I remember that very well. Ten people died at Love Creek in the Santa Cruz Mountains (2 of the victims were never found) and another 12 died in another part of the county, don’t remember where. The landslide at Love Creek was massive, a 1/4 mile of the hillside gave way. All toll, 36 people died from that storm, 25 due to landslides. That has got be one of the deadliest, if not THE deadliest, storms we have ever had.

Stay safe fellows, keep the kayaks handy.

There are reports of 174 and 195 mph wind gusting at Sierra ski resorts (approx 9,000 ft ASL) with average around 100 mph.

WOW! That’s incredible! I’m seeing a lot of reports of downed trees and powerlines, and street flooding around here.

I just discovered a nice resource from Iowa State University that you may find useful. They are always coming up with some great stuff. You can select by state or WFO to see the current situation of rivers around you.

River Forecast Point Monitor
http://mesonet.agron.iastate.edu/river/?state=CA

Wow! Amazing weather out there. Have some relatives in that area so watching the weather and water closely. Stay safe!

That’s a good link Harry :slight_smile:

The wind suddenly arrived here around noon. When we see gusting around 40 mph it usually means a lot of power outages :roll:

Daniel Swain (weatherwest.com) twitter feed has some good stuff https://twitter.com/Weather_West/with_replies

Good info on his website. I tried his Twitter feed and it said I was blocked. Strange that. Don’t know why that would be, oh well.

The rain has finally ended here for now. The front has moved to the south. Now we are getting ready for the next storm with a new round of advisories. And if all the wind and rain wasn’t bad enough, we going to have the King Tide to contend with which could cause coastal flooding. Whoopee! :frowning:

8O 8O 8O

Overall “it could have been a lot worse” IMHO. We shall see what tomorrow brings…

https://twitter.com/Weather_West/with_replies

great info there alright
not sure I would be walking on that bridge?

Wow!

That’s good for the snowpack :slight_smile: AIUI yesterday’s Reno floods were triggered by the rain being warmer and melting snowpack.

Today we have much wind but only recorded .77" so far. That may be understated due to it being close to horizontal :lol:

I’m pushing the inch mark already with .98" with a lot more rain to go. I thought they said this storm wasn’t supposed to be as bad as the last one. Ha! This just in:

Event: Flash Flood Warning
Alert: The National Weather Service in The San Francisco Bay Area has issued
a

  • Flash Flood Warning for…
    Southwestern Napa County in northern California…

  • Until 800 PM PST

  • At 205 PM PST, Doppler radar indicated heavy rain across the
    warned area. Most stream gaging sites in the area are indicating
    that water levels are quickly rising, and many sites have reached
    Monitor Stage. Flash flooding is expected to begin shortly, and
    rainfall is expected to continue through the afternoon and evening
    hours.

  • Some locations that will experience flooding include…
    Napa, American Canyon, St. Helena, Calistoga, Yountville, Deer Park
    and Angwin.

The front for this storm finally went through at 7:49 pm with one last gasp of a gust of 32 mph. The baro bottomed out at 29.67 in and is now rising. The wind has gone down and changed direction to the SW.

40 mph gusts (high for us) and 29.46 here. Looking forward to a quiet couple of days now :slight_smile:

Trivial by the standards of other parts of the country I know :roll: but exciting for us California weather wimps :lol:

https://twitter.com/demianbulwa/status/819294272520208384/photo/1?ref_src=twsrc^tfw

Note that the electricity is still ON 8O

(Guerneville is no stranger to floods.)