Blue Sky T-shirt Riding

[donbrown]

Natl weather Service RENO NV 26 FEB 2013

After an above average snowfall in December 2012, northern California and the Sierra Nevada Mountains have experienced an exceptionally dry start to 2013.

A strong ridge of high pressure dominated the weather pattern allowing only a few relatively small storms into the area causing the driest period on record for January 2013 and February 2013 in Tahoe City.

The average precipitation for January and February in Tahoe City from 1910 to 2013 is 11.24 inches.

The driest January/February on record was 1991 with only 1.34 inches of precipitation, while the total precipitation for January 2013 and February was only 0.76 inches.


The precipitation record in Tahoe City goes back over 100 years and is part of the National Weather Service Cooperative Observer (COOP) Program.

 

[Scott]

WOW

 

[bholmlate]

would that be considered climate change or not???? I am a bit confused

 

[rotax]

would that be considered climate change or not???? I am a bit confused

Not unless we can track climate for the last 2000 years...

What would an 'ice-age' be considered to the "climate change" crowd? Normal weather pattern, or due to human intervention. For all we know, it could have been human intervention I spose. But I bet the world and universe is bigger than mankind ever will be....... Not that we won't stop trying to prove that otherwise.


Regardless, it sucks. Need more hydrogen fueled devices/vehicles to create additional water vapor?

 

[donbrown]

would that be considered climate change or not???? I am a bit confused

Off topic BUT the last "mini" ice age occured because of pollution !!!

A volcano went off and spewed so much debis in the air it caused it to be cold for a few years.

I think we stopped "seeding" here the last couple years so yep less likely for moisture here in the golden state.

 

[donbrown]

Snow flurries Sunday 3 March.

Foot possible WED 6 March

Of course forecast models say storm likely 2 weeks out. (Like is ALWAYS does this time of the year.

www.mammothweather.com
Warmer Temps the next few days then increasing clouds Saturday Night with a chance of Rain and Snowshowers Sunday…….


Wednesday February 27, 2013


Posted at 10:01 am by Howard
.

Dweeb Update: Star date 2.27.13@9:20pmPST….



Nice quite evening…..all calm on the western front…Temps in the upper 20s….

Latest operational 00z Thursday GFS has a rather unimpressive off shore ridge out about 130west that will progress into the west coast Friday. As it does…it stands up over the state. IE Amplification upstream will be the pump. As a result…high temps will become above normal with temps on Saturday 55 to 60 degrees in Mammoth. Bishop in the low 70s.

By Sunday….the ridge shifts east to the Rockies as a rather unimpressive short wave dampens and splits during its transit through the golden state. At Wednesday AM, the Dweebs were not impressed or I should say “as impressed” as it looked Tuesday morning. However, I will look again Friday. In the meantime all eyes are focused upon the system for mid-week, next week. The set up with a large upper long wave ridge progressing east and a short wave coming west from the mid lats looks promising. The system gets a shot of BC, Can air prior to its arrival….as well as remnants of a small ribbon of Subtropical moisture from 140West. The QPF last time I checked the EC was running about an inch/foot of fresh. By the following weekend (10th)….retrogression in the over all pattern across the pacific looks somewhat promising for later the 2nd week of March if the retrogression of the long wave high continues.

Again……The mid week system will be coming west underneath a developing block over AK, this system should be good for at least a foot of fresh Wednesday 6 MAR over the upper elevations. Will fine tune over the weekend. In the meantime it’s status quot except for some unsettled weather Sunday. IE Wind, cooling and snow showers…light accumulation if any…. Sunday 3 MAR

Long Range:

It does look light some major hemispheric changes are going to take place later in the month of March.

The 06z Run last night of the GFS has quite a Kona Complex developing about the 15th in fantasyland, confluent with a significant polar jet at 140W. If this atmospheric river develops, it would be very significant for hydrological reasons for a lot of California. (This is not a forecast yet…just a model curiosity).



The Dweeber…………………..
. - See more at: http://mammothweather.com/#sthash.r1A7dDTN.dpuf

 

[bholmlate]

We shall see. It have been really nice in truckee the last few weeks. The last storm dumped a lot more snow to the south of truckee and north of truckee but dropped 1 inch in truckee With such a high pressure system in the area it will be interesting to see it the storm is big enough to push out the high pressure or will it once again get split in two and drop more snow down south and north

Never wanted to switch topics here at all just thought 11.24 inches > 1.34 inches > 0.76 inches when viewed side by side reflects a change in areas climate. Now i know 11.24=1.34=0.76 i never understood this high math anyway

 

[donbrown]

Active Weather Pattern Returning To The Eastern Sierra Beginning Tonight…..Then Moderate Snowstorm Expected Tuesday Afternoon Through Wednesday Night 5-6 MAR ….Weather Turning Colder Again Second half of Next Week…

Saturday March 2, 2013


Posted at 8:53 am by Howard
.

After a long break…an active weather pattern will return to the Eastern Sierra Sunday and continue on and off next week. The biggest system by far this year is expected between Tuesday and Wednesday night. 5-6 MAR That could dump 12 to 18 inches up on Mammoth Mtn with up to a foot in town…..



Updating…..

Current upper ridge over Ca will begin weakening today…but not before bringing another few degrees of warming. Highs in Mammoth well into the 50s are expected.

Over the pacific its a progressive pattern in the westerlies. The current trof that is approaching California is weakening as it encounters the west coast ridge. It is resulting in a much weaker system that will produce at most an inch or two of snowfall between tonight and Sunday. Following a break on Monday….the next upstream system is looking much wetter, deeper and colder. An upper high over AK is aiding the system in its more mid latitude storm track. This is the storm we have been waiting for to really freshen up the snow pack! It will have a period of strong orographics and so current snowfall estimates may even be underestimated! The storm will be followed by unsettled weather pattern for another day or two with another impulse following between Thursday into Friday. Then a weekend that is promising to be pretty nice!



Updating…..
. - See more at: http://mammothweather.com/#sthash.D8is09Zw.dpuf

 

[kidwoo]

The biggest system by far this year is expected........

Ooh that's really saying a lot

 

[donbrown]

Ooh that's really saying a lot

Ya as long as it can be measured in whole number in feet is a profound testament as to how this season has been here.

Too bad they take the OHV into the general fund and not for seeding the clouds for snow/rain.

 

[kidwoo]

I don't know what the story is in mammoth but PG&E and DRI still cloud seed up around here. They just haven't had the right kind of storms to really have it hit hard.

http://www.dri.edu/current-operations/2340-cloud-seeding-tahoe-truckee

PG&E knocks the almanor region (and probably others)

 

[donbrown]

I don't know what the story is in mammoth but PG&E and DRI still cloud seed up around here. They just haven't had the right kind of storms to really have it hit hard.

http://www.dri.edu/current-operations/2340-cloud-seeding-tahoe-truckee

PG&E knocks the almanor region (and probably others)

That is nice they still seed.

Do thetyride up and sample or do they heli up?

Now down here they have to helicopter in so not to rely on sled trails.

 

[kidwoo]

PG&E has hydro guys that do their normal snow survey stuff just to forecast runoff for their reservoirs. They use choppers and sleds both. One of their guys is a sledder so you know what he chooses.

Not sure if DRI does any snow depth surveys but their site implies that they do chemical analyses.......not sure how or where.

 

[donbrown]

PG&E has hydro guys that do their normal snow survey stuff just to forecast runoff for their reservoirs. They use choppers and sleds both. One of their guys is a sledder so you know what he chooses.

Not sure if DRI does any snow depth surveys but their site implies that they do chemical analyses.......not sure how or where.

The seeding has a "radioactive" and spectrum analysis signature and thjey sample the snow to see how and where the seeding contributed.

They basically fill a box with snow bring it down and sample it.