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Storm 25-27 JAN about 2 feet likely

donbrown

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Small storm 23 January wednesday a few inches.

Snow fridAY sATURDAY sUNDAY into Monday levels to 4000 feet

six inches at 4000 feet and 2 feet at 8000 feet


www.mammothweather.com

Storm System for the Weekend looks to Dump Upwards to 2 feet on Old Woolly…..Then Snow Showery and Cold Monday for a Powder Day!


Tuesday January 22, 2013


Posted at 2:45 am by Howard
.

Confidence is now increasing between the GFS and the EC that the “slower more clustered ECMWF ensemble solution” will bring a good snow producing system to the Sierra over the weekend. In that now we have better agreement that the slower solution is preferred, upwards to two feet of snowfall is expected over Mammoth Mountain based upon last nights 00z Tuesday guidance. Additionally, between 6 to 12 inches is expected in town. The storm will begin very late Friday night with some very light snowfall that will continue into Saturday morning, with the tempo picking up Saturday afternoon into the night. By Sunday Am upward to a foot is expected on Mammoth Mountain and ”about” 3 to 6 inches in town.

Additionally….The slow movement of the system will allow snowfall to continue well into Sunday. The upper flow will be natural to the Sierra and so good orographics combined with ample vertical motion is expected to produce upwards to another foot by Sunrise Monday morning. This 2nd part of the storm will be colder and so snowfall will be lighter. It may even fluff out to be higher amounts then a foot.

Monday looks partly cloudy and cold with possibly some light upslope snow shower action. A powder day for sure! The ECMWF’s QPF just west of the Summit has settled down to about 2 inches now which looks more reasonable. This mornings new HPC 7 day total precip bullseye’s the precip right over the top of Mammoth Mt. The storm has got some cold air in it, so although snow levels will begin higher….the freezing level should be down to about 5500ft by 10:00am Sunday, with snowfall effecting most of the Mono County Valley floor areas during the afternoon. Further cooling is expected throughout the night and into the early morning hours with the freezing level near 4000 ft by midnight Sunday night. Snow levels typically are 1,000 to 1500 feet below the freezing level.

In the meantime, there is a splitting system that will bring some very light snowfall Wednesday night. An inch or two is possible over the crest and up to an inch in town is certainly possible.

For the time being…..this weekend storm looks to be a one storm scenario before we ridge up again later next week. Looks like the Mono Lake freezing fog will be back for a time…..
 

donbrown

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STORM HAS DUMPED IN THE OCEAN

EXPECT INCHES NOT FEET BUT SOME AREAS MAY GET MORE


Complicated pattern for the High Country next 5 days….Periods of Light Snowfall expected over the Upper Elevations through Monday….Turning Colder again early next week…..


Wednesday January 23, 2013


Posted at 9:01 am by Howard
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What happened to the models!!

Early yesterday AM confidence was increasing…now it has collapsed as they all going their own ways on handling the next 5 days.

Again…The forecast models have gone their own way in trying to handle the energy over the eastern pacific. The upshot is the Euro model has gone a lot drier as compared to the last couple of days for QPF. However, they may now be actually under-done.

Looking at the the eastern pacific sat picts, there is a lot of subtropical moisture to the SSW of Mammoth that is left behind from a circulation center that has since dissipated. An approaching splitting short wave is drawing it NEward into the sierra. This moisture is going to move up and over the Sierra, later today and especially tonight and early Thursday. The higher elevations mainly above 8000 is going to get some light snowfall, possibly some 2 to 4 inches at the village and between 4 and 6 inches at and above 9K. This will occur, mainly tonight and there may be an additional 2 inches up there Thursday. Then there is the portion of the split off circulation center that “may” lift NE and wrap some slight snowfall back up and around from NV into the Sierra Friday/Ngt. This is just a slight chance.

Then we have the kicker wave coming in late Saturday PM into Sunday followed by a cold inside slider early Monday morning. What a &^%$#! Mess!!



Stay Tuned!



The Dweeber………………………..:)
 

donbrown

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Today's Wed-Thurs storm is coming from the south hence on the warm side and any precip / snow mostly on the southern face.

Expect 1/2" H2O flatlands

1-2.5 inches foothills

4 inches moisture on southface mountains and much much less on northface

Snow levels ... ??? high up above 7000 feet day down to 4000 at night.

Snow amounts inches to feet since forecasters can't figuire out which "prediction" is accurate so they err to the least impact yet provide a travel advisory to CYA.

Second storm SAT- Mon 26-28 Jan is colder approaching from the north.
weather computer models predicted 2-4 feet at 7000 feet last week now predicts most will dump in ocean.

Will be cold after 2nd storm 28 Jan
 
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