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RandySF

(58,854 posts)
Fri Jul 10, 2015, 12:56 AM Jul 2015

Massive El Niņo growing in California, say models

SACRAMENTO — There is growing evidence California could see an even stronger El Niño event this winter than the 1997 one that caused massive flooding across Northern California.

Stunning images from Japan's Himawari 8 Weather Satellite, just activated Tuesday, show what could

"Almost all models are showing consistency that we're seeing a stronger and stronger tendency for that to hold in place through the winter season. It could rival that of 1997," News10-KXTV Chief Meteorologist Monica Woods said.

In recent days, cyclones and typhoons, including one mammoth storm heading toward China with cloud cover the size of Texas, have helped shift the trade winds from west to east, pushing warm sub-surface water toward the coast of South America and making it all but certain an El Niño event will last at least through the fall.


http://www.usatoday.com/story/news/nation-now/2015/07/09/el-nino-california/29921633/

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Massive El Niņo growing in California, say models (Original Post) RandySF Jul 2015 OP
It's certainly been keeping us soggy in NM Warpy Jul 2015 #1
I dread and welcome, at the same time n/t jaysunb Jul 2015 #2
same here. We need it so badly, but I don't want flooding or people getting hurt from it still_one Jul 2015 #4
I remember those floods nadinbrzezinski Jul 2015 #3
Feeling it already laundry_queen Jul 2015 #5
Well, it's USA Today JayhawkSD Jul 2015 #6
Maybe, but read this: Infrared and microwave remote sensing of sea surface temperature (SST) HereSince1628 Jul 2015 #7
Of course you can get SST from satellites. JayhawkSD Jul 2015 #9
Maybe, I'm not sure how limited space is for instruments on weather satellites HereSince1628 Jul 2015 #10
It rained earlier last night.. yuiyoshida Jul 2015 #8
Edd: "Summer rains, you can never predict them." (10:20-25) Jamaal510 Jul 2015 #11

laundry_queen

(8,646 posts)
5. Feeling it already
Fri Jul 10, 2015, 01:17 AM
Jul 2015

here in Western Canada. Record breaking heat. Hit 94 today. No rain. Still.

I read somewhere that this El Niño is a lot like 1987's. I hope not. That's the year a rare F4 tornado came through where I live.

 

JayhawkSD

(3,163 posts)
6. Well, it's USA Today
Fri Jul 10, 2015, 01:30 AM
Jul 2015

Other sources confirm the likelihood of a strong El Nino, but as tends to be the case with USA Today, that article is essentially gibberish.

Weather satellites are not going to show El Nino because they show cloud cover and aerial phenomena, and El Nino is sea surface temperature. Cyclones and typhoons are the result of El Nino, not causation of it, and the trade winds have weakened, allowing the warmer water to move eastward, but they have not reversed direction.

HereSince1628

(36,063 posts)
7. Maybe, but read this: Infrared and microwave remote sensing of sea surface temperature (SST)
Fri Jul 10, 2015, 07:24 AM
Jul 2015

I'm not sure what instrumentation the Japanese satellite carries but it's not impossible to get data on sea surface temp from satellite remote sensing.

http://www2.hawaii.edu/~jmaurer/sst/

Sea surface temperature (SST) is an important geophysical parameter, providing the boundary condition used in the estimation of heat flux at the air-sea interface. On the global scale this is important for climate modeling, study of the earth's heat balance, and insight into atmospheric and oceanic circulation patterns and anomalies (such as El Niño). On a more local scale, SST can be used operationally to assess eddies, fronts and upwellings for marine navigation and to track biological productivity.

Satellite technology has improved upon our ability to measure SST by allowing frequent and global coverage. In the past, SST could only be measured by ships and buoys, whose ranges were limited. Below are two maps illustrating this point:


Methods for determining SST from satellite remote sensing include thermal infrared and passive microwave radiometry. Both methods have their own strengths and weaknesses, which are outlined below. Gary Wick's current research investigates techniques for combining the strengths of both of these methods into a blended SST product which will hopefully improve upon existing SST measurements. Climatologists have stated the need for accuracy on the order of 0.3 Kelvin (World Climate Research Program, 1985) while the best accuracy possible today is only on the order of ~0.6 Kelvin.

<snip>

 

JayhawkSD

(3,163 posts)
9. Of course you can get SST from satellites.
Fri Jul 10, 2015, 10:31 AM
Jul 2015

I never suggested that we could not. I said that a weather satellite would not, because a weather satellite is designed and used for looking at the weather, which happens in the atmosphere. Not to mention that the image displayed by the peurile USA Today article was a weather satellite image of cloud formations in the atmosphere, which confirmed my assertions.

HereSince1628

(36,063 posts)
10. Maybe, I'm not sure how limited space is for instruments on weather satellites
Fri Jul 10, 2015, 03:59 PM
Jul 2015

Seems planners for weather satellites would include it if they had opportunity as ocean temps have real significance for weather forecasts.

yuiyoshida

(41,831 posts)
8. It rained earlier last night..
Fri Jul 10, 2015, 07:43 AM
Jul 2015

surprised me, we haven't seen rain since spring, and now its Summer. Something is going on as I can't recall Rain in the summer time.

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