Congrats Sierra Nevada Range

[Srain]

Time to plan a ski trip...

URGENT - WINTER WEATHER MESSAGE

NATIONAL WEATHER SERVICE RENO NV

300 PM PST THU NOV 18 2010

...MAJOR WINTER STORM TO AFFECT THE REGION THIS WEEKEND...

.A STRONG AND COLD LOW PRESSURE SYSTEM WILL DROP INTO NORTHERN

CALIFORNIA AND NEVADA THIS WEEKEND BRINGING HEAVY SNOW...GUSTY

WINDS AND MUCH COLDER TEMPERATURES. SNOW LEVELS WILL DROP TO

ALL VALLEY FLOORS WHEN A COLD FRONT PASSES THROUGH THE REGION

LATE FRIDAY NIGHT AND EARLY SATURDAY MORNING.

COLD AIR AND GUSTY WINDS WILL PRODUCE A POWDERY SNOW WITH THE

POTENTIAL FOR LOCAL BLIZZARD CONDITIONS IN THE SIERRA...ESPECIALLY

OVER MOUNTAIN PASSES AND EXPOSED LOCATIONS SATURDAY AFTERNOON AND

SATURDAY NIGHT.

TRAVEL IN THE SIERRA WILL BE DANGEROUS WITH SIGNIFICANT DELAYS

AND POSSIBLE ROAD CLOSURES. MOTORISTS SHOULD CONSIDER ADJUSTING

TRAVEL PLANS TO AVOID DRIVING THROUGH THE SIERRA THIS WEEKEND.

CAZ072-NVZ002-191200-

/O.UPG.KREV.WS.A.0006.101120T0000Z-101122T0000Z/

/O.NEW.KREV.WS.W.0008.101120T0000Z-101122T0000Z/

GREATER LAKE TAHOE AREA-

INCLUDING THE CITIES OF...SOUTH LAKE TAHOE...TRUCKEE...

INCLINE VILLAGE

300 PM PST THU NOV 18 2010

...WINTER STORM WARNING IN EFFECT FROM 4 PM FRIDAY TO 4 PM PST

SUNDAY...

THE NATIONAL WEATHER SERVICE IN RENO HAS ISSUED A WINTER STORM

WARNING FOR HEAVY SNOW AND GUSTY WINDS...WHICH IS IN EFFECT FROM

4 PM FRIDAY TO 4 PM PST SUNDAY. THE WINTER STORM WATCH IS NO

LONGER IN EFFECT.

* TIMING: SNOW WILL BEGIN FRIDAY AFTERNOON AND CONTINUE THROUGH

SUNDAY OR SUNDAY NIGHT. PERIODS OF HEAVY SNOW WILL AFFECT THE

TAHOE BASIN LATE FRIDAY NIGHT THROUGH SATURDAY MORNING AND

SATURDAY NIGHT.

* SNOW ACCUMULATIONS: 3 TO 5 FEET OF SNOW WILL OCCUR ABOVE 7000

FEET. 1 TO 2 FEET WILL OCCUR BELOW 7000 FEET WITH HIGHER AMOUNTS

UP TO 3 FEET POSSIBLE BELOW 7000 FEET ALONG THE WEST SHORE.

* WINDS: SOUTHWEST WINDS 20 TO 30 MPH WITH GUSTS UP TO 50 MPH.

RIDGE GUSTS UP TO 100 MPH.

* CONSIDERABLE BLOWING SNOW AND LOCAL BLIZZARD CONDITIONS ARE

POSSIBLE SATURDAY AFTERNOON AND SATURDAY NIGHT.

[baroclinic_instability]

It isn't the amount of moisture that is all that exceptional, in fact, this is run of the mill for a typical large storm in the Sierras, it is how cold this trough is going to be. The thermals are more consistent with something you would see in the Tetons, not the Sierras! Great ski snow. I agree, where we going? I am down for Mammoth.

[Srain]

Time for a Kirkwood trip...

[msp]

i'm game for skiing

http://www.wrh.noaa.gov/FXC/make_img.php?wfo=hnx&iname=Active_Screen1L&size=1&force=no

[Southland Wx]

Blogged a bit on this tonight: http://adiabat.wordpress.com/2010/11/20/a-sierra-special/

Always amazed at how the Sierra just cash in on these storms...happens a lot, but every time I'm still floored by it.

[baroclinic_instability]

They are definitely going to get nailed. Regions above 10000 feet will be in the prime snow crystal development region with 20-1 probably too low later in the storm. This is a once in a couple year cold snow event. Definitely not the moisture laden snow they usually see.

[Srain]

Ah, to be in Tahoe today...

South Lake Tahoe, Lake Tahoe Airport

Last Update on 20 Nov 4:53 PST

Hvy Snow, Ice Fog

26°F

(-3°C)</FONT>Humidity:88 %Wind Speed:SSW 6 MPH

Barometer:29.65 in (1003.40 mb)Dewpoint:23°F (-5°C)Wind Chill:19°F (-7°C)Visibility:0.25 Miles

[daddylonglegs]

Southland-

Send a private jet to pick me up in La Crosse... I'm going to need to personally verify these snowfall amts. Just have a Land Rover waiting for me at the airport

[Srain]

URGENT - WINTER WEATHER MESSAGE...UPDATED

NATIONAL WEATHER SERVICE RENO NV

320 PM PST SAT NOV 20 2010

CORRECTED WORDING FOR RENO

...SIGNIFICANT WINTER STORM CONTINUES INTO SUNDAY...

.A STRONG AND COLD LOW PRESSURE SYSTEM WILL CONTINUE TO AFFECT

THE REGION THROUGH SUNDAY MORNING. SNOW AMOUNTS IN THE SECOND

ROUND TONIGHT WILL BE HIGHER THAN FRIDAY NIGHT...WITH HIGHER SNOW

RATIOS.

COLD AIR AND GUSTY WINDS WILL PRODUCE A POWDERY SNOW WITH THE

POTENTIAL FOR LOCAL BLIZZARD CONDITIONS IN THE SIERRA...

ESPECIALLY OVER MOUNTAIN PASSES AND EXPOSED LOCATIONS SATURDAY

NIGHT THROUGH SUNDAY MORNING.

TRAVEL IN THE SIERRA AND PORTIONS OF WESTERN NEVADA WILL BE

DANGEROUS WITH SIGNIFICANT DELAYS AND POSSIBLE ROAD CLOSURES.

MOTORISTS SHOULD CONSIDER ADJUSTING TRAVEL PLANS TO AVOID DRIVING

THROUGH THE SIERRA THIS WEEKEND.

CAZ072-NVZ002-211200-

/O.CON.KREV.WS.W.0008.000000T0000Z-101122T0000Z/

GREATER LAKE TAHOE AREA-

INCLUDING THE CITIES OF...SOUTH LAKE TAHOE...TRUCKEE...

INCLINE VILLAGE

320 PM PST SAT NOV 20 2010

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 PM PST SUNDAY...

A WINTER STORM WARNING FOR HEAVY SNOW AND GUSTY WINDS REMAINS IN

EFFECT UNTIL 4 PM PST SUNDAY.

* TIMING: A SECOND ROUND OF HEAVY SNOW WILL MOVE IN THIS

EVENING AND CONTINUE INTO SUNDAY.

* ADDITIONAL SNOW ACCUMULATIONS: 1 TO 2 FEET ABOVE 7000 FEET...

WITH LOCALLY HIGHER AMOUNTS ALONG THE SIERRA CREST. 12 TO 18

INCHES BELOW 7000 FEET.

* WINDS: SOUTHWEST WINDS 10 TO 20 MPH WITH GUSTS UP TO 30 MPH.

GUSTS TO 45 MPH TONIGHT AND SUNDAY MORNING. RIDGE GUSTS UP

TO 75 MPH.

* CONSIDERABLE BLOWING SNOW AND LOCAL BLIZZARD CONDITIONS ARE

POSSIBLE TONIGHT INTO SUNDAY MORNING.

[Southland Wx]

Snow totals in the Reno CWA as of this morning:

PRELIMINARY LOCAL STORM REPORT

NATIONAL WEATHER SERVICE RENO NV

1000 AM PST SAT NOV 20 2010

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...

..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....

..REMARKS..

0612 AM SNOW MOUNT ROSE SKI AREA 39.33N 119.89W

11/20/2010 M6.0 INCH WASHOE NV PUBLIC

MT ROSE SKI RESORT REPORTED 6 INCHES OF NEW SNOW IN THE

PAST 24 HOURS.

0615 AM HEAVY SNOW SQUAW VALLEY 39.20N 120.22W

11/20/2010 M18.0 INCH PLACER CA PUBLIC

SQUAW VALLEY SKI RESORT REPORTED A TOTAL OF 12 INCHES OF

NEW SNOW AT AN ELEVATION OF 6200 FEET WITH 18 INCHES OF

NEW SNOW AT 8200 FEET.

0620 AM HEAVY SNOW ALPINE MEADOWS 39.17N 120.22W

11/20/2010 M10.0 INCH PLACER CA PUBLIC

ALPINE MEADOWS SKI RESORT REPORTED A 24-HOUR SNOWFALL

TOTAL OF 8 INCHES ON THE LOWER MOUNTAIN WITH 10 INCHES ON

THE UPPER MOUNTAIN.

0626 AM HEAVY SNOW NORTHSTAR 39.28N 120.12W

11/20/2010 M16.0 INCH PLACER CA PUBLIC

NORTHSTAR-AT-TAHOE SKI RESORT REPORTED A 24-HOUR SNOWFALL

TOTAL OF 15 INCHES OF SNOWFALL AT MID-MOUNTAIN WITH 16

INCHES OF SNOW AT THE SUMMIT.

0626 AM HEAVY SNOW 2 WSW SOUTH LAKE TAHOE 38.93N 120.01W

11/20/2010 M12.0 INCH EL DORADO CA TRAINED SPOTTER

A TRAINED WEATHER SPOTTER NEAR TAHOE KEYS REPORTED 9.0

INCHES OF SNOW ON HIS DRIVEWAY WITH 12.0 INCHES OF SNOW

ON HIS DECK SINCE 630 PM PST.

0633 AM HEAVY SNOW 5 W TRUCKEE 39.33N 120.30W

11/20/2010 M8.0 INCH NEVADA CA PUBLIC

SUGAR BOWL SKI RESORT REPORTED 5 INCHES OF NEW SNOW AT

THE BASE IN THE PAST 24 HOURS WITH 8 INCHES OF NEW SNOW

AT THE PEAK.

0633 AM HEAVY SNOW HEAVENLY VALLEY 38.96N 119.89W

11/20/2010 M18.0 INCH DOUGLAS NV PUBLIC

HEAVENLY SKI RESORT REPORTED 18 INCHES OF SNOW IN THE

PAST 24 HOURS.

0711 AM HEAVY SNOW 1 WNW MAMMOTH LAKES 37.65N 118.98W

11/20/2010 M12.0 INCH MONO CA TRAINED SPOTTER

A TOTAL OF 12 INCHES OF SNOWFALL WAS REPORTED AT AN

ELEVATION OF 8200 FEET IN THE PAST 24 HOURS.

0739 AM SNOW 1 E SLOAT 39.87N 120.72W

11/20/2010 M7.0 INCH PLUMAS CA TRAINED SPOTTER

TRAINED WEATHER SPOTTER REPORTED 24 HR SNOWFALL OF 7.0

INCHES.

0739 AM SNOW MINDEN 38.96N 119.77W

11/20/2010 M4.0 INCH DOUGLAS NV TRAINED SPOTTER

TRAINED WEATHER SPOTTER REPORTED 24 HOUR SNOWFALL OF 4.0

INCHES.

0739 AM SNOW 1 NE INCLINE VILLAGE 39.26N 119.94W

11/20/2010 M6.0 INCH WASHOE NV TRAINED SPOTTER

TRAINED SPOTTER REPORTED 24 HOUR SNOWFALL OF 6.0 INCHES.

0837 AM SNOW 1 W DOYLE 40.02N 120.12W

11/20/2010 M4.0 INCH LASSEN CA TRAINED SPOTTER

OVERNIGHT SNOWFALL TOTAL AS OF 830AM.

0905 AM HEAVY SNOW BOCA RESERVOIR 39.40N 120.09W

11/20/2010 M9.0 INCH NEVADA CA CO-OP OBSERVER

OVERNIGHT SNOWFALL TOTAL AT 5575 FEET. 0.73 INCHES OF

LIQUID EQUIVALENT MEASURED.

0908 AM SNOW LEE VINING 37.96N 119.12W

11/20/2010 M5.0 INCH MONO CA CO-OP OBSERVER

OVERNIGHT SNOWFALL TOTAL AT 6800 FEET. 0.45 INCHES OF

LIQUID EQUIVALENT MEASURED.

0909 AM SNOW STEAD 39.64N 119.88W

11/20/2010 M2.0 INCH WASHOE NV CO-OP OBSERVER

OVERNIGHT SNOWFALL TOTAL AS OF 800AM.

0911 AM SNOW BRIDGEPORT 38.26N 119.22W

11/20/2010 M4.0 INCH MONO CA CO-OP OBSERVER

OVERNIGHT SNOWFALL TOTAL AT 6470 FEET. 0.36 INCHES OF

LIQUID EQUIVALENT MEASURED.

0913 AM HEAVY SNOW 2 S HOMEWOOD 39.05N 120.16W

11/20/2010 M12.0 INCH PLACER CA TRAINED SPOTTER

OVERNIGHT SNOWFALL TOTAL AS OF 900AM. CURRENTLY 21

DEGREES.

0914 AM HEAVY SNOW HOMEWOOD 39.08N 120.16W

11/20/2010 M15.0 INCH PLACER CA TRAINED SPOTTER

OVERNIGHT SNOWFALL TOTAL FROM 600PM 11/19/10 - 600AM

11/20/10 AT 6300 FEET.

0916 AM SNOW 2 W MAMMOTH LAKES 37.64N 118.99W

11/20/2010 M13.0 INCH MONO CA MESONET

CURRENT SNOWFALL TOTAL AS OF 900AM AT MAMMOTH MOUNTAIN

SNOW STUDY LOCATED AT 9000 FEET. STILL SNOWING.

0924 AM SNOW DAGGET PASS 38.98N 119.89W

11/20/2010 M10.0 INCH DOUGLAS NV CO-OP OBSERVER

OVERNIGHT SNOWFALL TOTAL AT 7334 FEET.

0926 AM SNOW GLENBROOK 39.09N 119.94W

11/20/2010 M9.0 INCH DOUGLAS NV CO-OP OBSERVER

OVERNIGHT SNOWFALL TOTAL AT 6350 FEET.

0936 AM SNOW PORTOLA 39.80N 120.47W

11/20/2010 M7.0 INCH PLUMAS CA CO-OP OBSERVER

OVERNIGHT SNOWFALL TOTAL AT 4850 FEET. 0.73 INCHES OF

LIQUID EQUIVALENT MEASURED.

0941 AM SNOW 2 NW TAHOE CITY 39.19N 120.17W

11/20/2010 M10.0 INCH PLACER CA CO-OP OBSERVER

OVERNIGHT SNOWFALL TOTAL AT THE U.S.C.G. STATION LAKE

TAHOE.

0947 AM SNOW SUSANVILLE 40.41N 120.65W

11/20/2010 M4.0 INCH LASSEN CA CO-OP OBSERVER

OVERNIGHT SNOWFALL TOTAL AT 4184 FEET.

0956 AM HEAVY SNOW 5 WSW PROSSER CREEK RES 39.34N 120.25W

11/20/2010 M21.0 INCH NEVADA CA TRAINED SPOTTER

SNOWFALL TOTAL FROM 600PM 11/19/2010 - 900AM 11/20/2010

AT 6700 FEET. SPOTTER REPORTED THAT THE SNOW IS BEGINNING

AGAIN.

0957 AM HEAVY SNOW TRUCKEE 39.33N 120.20W

11/20/2010 M12.0 INCH NEVADA CA CO-OP OBSERVER

OVERNIGHT SNOWFALL TOTAL AT 5900 FEET.

0959 AM SNOW PORTOLA 39.80N 120.47W

11/20/2010 M8.0 INCH PLUMAS CA TRAINED SPOTTER

OVERNIGHT SNOWFALL TOTAL FROM 5PM 11/19/2010.

1000 AM HEAVY SNOW 5 SW SOUTH LAKE TAHOE 38.88N 120.03W

11/20/2010 M13.0 INCH EL DORADO CA TRAINED SPOTTER

OVERNIGHT SNOWFALL TOTAL.

[aslkahuna]

Eh, I remember that during the broadcast of the Opening Ceremonies of the 1960 Winter Olympics at Squaw Valley that the 18 inch snowfall that day was referred to as Flurries by a couple of the newscasters familiar with High Sierra Weather. While an exaggeration perhaps, 24 hour snowfall amounts under 2 feet are pretty much considered light in the wake of what can occur there.

Steve

[baroclinic_instability]

KBLU 210552Z AUTO 19016G22KT 1/4SM +SN FZFG VV001 M03/M04 A2953 RMK AO2 PK WND 19026/0534 SLP023 P0056 60086 T10281039 11017 21028 53006 TSNO

.56 in liquid QPF for one hour during a snow event, pretty incredible.

[Stebo]

KBLU 210552Z AUTO 19016G22KT 1/4SM +SN FZFG VV001 M03/M04 A2953 RMK AO2 PK WND 19026/0534 SLP023 P0056 60086 T10281039 11017 21028 53006 TSNO

.56 in liquid QPF for one hour during a snow event, pretty incredible.

Yeah, god straight 10 to 1 is 5.6 inches, but this is probably 15/20 to 1....

[baroclinic_instability]

Yeah, it is pretty amazing. I took a brief look at the discussion and they mentioned multiple sites reporting some pretty extreme precip values in thunderstorms, so it wasn't a bad ob. I would have to imagine there may have been some pellets in there as well so it prolly didn't amount to a massive amount of snow per se, but I am sure it piled up nice.

[Cheeznado]

Unofficial reports now of 5 feet in the Tahoe area

[aslkahuna]

Blue Canyon is well known for heavy snow in the Sierra being on the windward side of the Range in the snowbelt elevation. I believe that for any town in the US that reports it has the highest average annual snowfall while Buffalo NY is usually considered the snowiest large city in the US.

Steve

[meatwad]

I love the Sierras, even I experienced a Sierra snowstorm back in the 1980s, but that was in July, so it wasn't anything like this.

This is the kind of place JI should move to, then he would get ungodly amounts of snow.

Congrats to the snow to the Sierra residents.

[Southland Wx]

Posted a bunch of Ski Resort totals in my blog: http://adiabat.wordpress.com/2010/11/21/sierra-snow-doesnt-disappoint-more-on-the-way/

It will be interesting to see how Tuesday does...they could easily add 1-3 more feet on top of these totals. I imagine this is really pushing it for November. Great start to the season.

[Southland Wx]

Looks like another 1-2' on the way, and if you believe the NAM, up to 3' possible on top of the 2-5' that have already fallen in the High Sierra. Similar Nina Novembers average about 125% of normal precip in the Sierra (and interestingly, there is a tendency for the back 10 days of the month to be active... Nov 1-21 avg precip is about 95-100% of normal, but Nov 1-30 is 110-130%). We're sitting around 110-125% of normal right now and should solidly end up 125+ by tomorrow there. Very important to cash in on these early season events there, as Nina climo tends to dry out drastically come Feb and March in that region.

Could also see another round of snow (especially if you trust the Euro) this weekend. Not quite as productive as this event, but still 1-2' > 5,000' would be possible if you take it literally.

[Srain]

Very impressive early season storm for Tahoe. I am seriously looking at a December trip to the S Lake Tahoe Area...

URGENT - WINTER WEATHER MESSAGE

NATIONAL WEATHER SERVICE RENO NV

730 AM PST TUE NOV 23 2010

...STRONG COLD FRONT TO BRING HEAVY SNOW AND BLOWING SNOW TO THE

REGION TODAY...

.HEAVY SNOW AND GUSTY WINDS WILL CONTINUE TODAY AS A STRONG COLD

FRONT MOVES THROUGH THE REGION. BLOWING SNOW AND NEAR WHITEOUT

CONDITIONS ARE LIKELY AT TIMES...ESPECIALLY WITH THE FRONTAL

PASSAGE.

TRAVEL IN THE SIERRA AND PORTIONS OF WESTERN NEVADA WILL BE

IMPACTED AT TIMES THROUGH TUESDAY EVENING. MOTORISTS SHOULD STAY

PREPARED FOR WINTER DRIVING CONDITIONS.

CAZ072-NVZ002-232330-

/O.CON.KREV.WS.W.0009.000000T0000Z-101124T0000Z/

GREATER LAKE TAHOE AREA-

INCLUDING THE CITIES OF...SOUTH LAKE TAHOE...TRUCKEE...

INCLINE VILLAGE

730 AM PST TUE NOV 23 2010

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 PM PST THIS

AFTERNOON...

A WINTER STORM WARNING FOR HEAVY SNOW AND BLOWING SNOW REMAINS IN

EFFECT UNTIL 4 PM PST THIS AFTERNOON.

* TIMING: MODERATE TO HEAVY WILL CONTINUE...DIMINISHING DURING THE

AFTERNOON.

* SNOW ACCUMULATIONS: 10 TO 20 INCHES AT LAKE LEVEL WITH 2 TO 3

FEET ABOVE 7000 FEET.

* WINDS: SOUTHWEST 15 TO 30 MPH WITH GUSTS TO 45 MPH.

* IMPACTS: HEAVY SNOW AND GUSTY WINDS WILL RESULT IN BLOWING

SNOW AND POOR VISIBILITY. WHITEOUT CONDITIONS ARE LIKELY

OVER THE RIDGES AND PASSES BECOMING WIDESPREAD ACROSS THE

GREATER LAKE TAHOE AREA FOR A 1 TO 3 HOUR PERIOD LATE THIS

MORNING.

[meatwad]

WUS55 KREV 232019
LSRREV

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE RENO NV
1218 PM PST TUE NOV 23 2010

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0259 AM     SNOW             4 SSW RENO              39.49N 119.86W
11/23/2010  U0.0 INCH        WASHOE             NV   TRAINED SPOTTER 

            JUST STARTING IN CAUGHLIN RANCH.

0421 AM     SNOW             VERDI                   39.52N 120.00W
11/23/2010  E2.0 INCH        SIERRA             CA   EMERGENCY MNGR  

            SO FAR. RELAYED BY WASHOE COUNTY SCHOOLS E.M.

0424 AM     NON-TSTM WND GST 8 NNW HAWTHORNE         38.63N 118.68W
11/23/2010  M67.00 MPH       MINERAL            NV   DEPT OF HIGHWAYS

            AT WALKER LAKE NDOT SITE. EL. 4104 FT.

0530 AM     HEAVY SNOW       HEAVENLY VALLEY         38.96N 119.89W
11/23/2010  M5.0 INCH        DOUGLAS            NV   PUBLIC          

            5 INCHES NEW SNOW FALL. 

0700 AM     HEAVY SNOW       TRUCKEE                 39.33N 120.20W
11/23/2010  M12.0 INCH       NEVADA             CA   AWOS            

            MEASURED 12.0 INCHES SNOW FALL PAST 24 HOURS AT TRUCKEE 
            AIRPORT AT 5900 FT. 0.52 INCHES WATER EQUIVALENT. 20 
            INCHES SNOW ON GROUND.

0710 AM     SNOW             MOUNT ROSE SKI AREA     39.33N 119.89W
11/23/2010  M5.0 INCH        WASHOE             NV   PUBLIC          

            MT ROSE SKI RESORT REPORTED 5 INCHES OF NEW SNOW IN THE 
            PAST 24 HOURS.

0710 AM     HEAVY SNOW       ALPINE MEADOWS          39.17N 120.22W
11/23/2010  M14.0 INCH       PLACER             CA   PUBLIC          

            ALPINE MEADOWS SKI RESORT REPORTED 10 INCHES OF NEW SNOW 
            IN THE PAST 24 HOURS AT 6800 FEET WITH 14 INCHES AT 8600 
            FEET.

0732 AM     HEAVY SNOW       SQUAW VALLEY            39.20N 120.22W
11/23/2010  M18.0 INCH       PLACER             CA   PUBLIC          

            SQUAW VALLEY SKI RESORT REPORTED 14 INCHES OF NEW SNOW IN
            THE PAST 24 HOURS AT 6200 FEET WITH 18 INCHES AT 8200 
            FEET.

0735 AM     HEAVY SNOW       HOMEWOOD                39.08N 120.16W
11/23/2010  M14.0 INCH       PLACER             CA   PUBLIC          

            HOMEWOOD SKI RESORT REPORTED 10 INCHES OF NEW SNOW IN THE
            PAST 24 HOURS ON THE LOWER MOUNTAIN WITH 14 INCHES ON THE
            UPPER MOUNTAIN.

0737 AM     HEAVY SNOW       5 W TRUCKEE             39.33N 120.30W
11/23/2010  M12.0 INCH       NEVADA             CA   PUBLIC          

            BOREAL SKI RESORT REPORTED 12 INCHES OF NEW SNOW IN THE 
            PAST 24 HOURS.

0800 AM     HEAVY SNOW       6 E ALPINE MEADOWS      39.19N 120.12W
11/23/2010  M10.0 INCH       PLACER             CA   TRAINED SPOTTER 

            MEASURED 10 INCHES PAST 24 HOURS AT 6230 FT. 37 INCHES ON
            GROUND.

0808 AM     SNOW             PORTOLA                 39.80N 120.47W
11/23/2010  M4.0 INCH        PLUMAS             CA   CO-OP OBSERVER  

            MEASURED 4 INCHES NEW SNOWFALL PAST 24 HOURS AT 4850 FT. 
            17 INCHES TOTAL SNOW DEPTH ON GROUND. 0.55 INCHES WATER 
            EQUIVALENT.

0821 AM     HEAVY SNOW       1 NE INCLINE VILLAGE    39.26N 119.94W
11/23/2010  M15.5 INCH       WASHOE             NV   TRAINED SPOTTER 

            15.5 INCHES NEW SNOW MEASURED AS OF 8AM THIS MORNING. 
            TOTAL SNOW ON GROUND IS 40.5 INCHES. ELEVATION 6700 FEET.


0832 AM     HEAVY SNOW       BOCA RESERVOIR          39.40N 120.09W
11/23/2010  M6.6 INCH        NEVADA             CA   CO-OP OBSERVER  

            MEASURED 6.6 INCHES NEW SNOWFALL FROM 8AM MONDAY TO 8AM 
            TUESDAY AT 5575 FT. TOTAL SNOW DEPTH 22 INCHES.

0900 AM     HEAVY SNOW       5 E ALPINE MEADOWS      39.18N 120.14W
11/23/2010  E17.0 INCH       PLACER             CA   TRAINED SPOTTER 

            MEASURED 17 INCHES NEW SNOWFALL PAST 24 HOURS FROM MONDAY
            9AM TO TUESDAY 9AM AT 6350 FT.

0905 AM     HEAVY SNOW       2 S SOUTH LAKE TAHOE    38.91N 119.98W
11/23/2010  M16.0 INCH       EL DORADO          CA   ASOS            

            MEASURED 16 INCHES NEW SNOWFALL AT SOUTH LAKE TAHOE 
            AIRPORT FROM MONDAY 9AM TO TUESDAY 9AM AT 6314 FT.

0911 AM     HEAVY SNOW       ALPINE MEADOWS          39.17N 120.22W
11/23/2010  M20.0 INCH       PLACER             CA   PUBLIC          

            20 INCHES NEW SNOWFALL PAST 24 HOURS AT ALPINE MEADOWS 
            SKI RESORT ON UPPER MOUNTAIN WITH 14 INCHES NEW SNOW FALL
            ON LOWER MOUNTAIN.

0915 AM     HEAVY SNOW       SQUAW VALLEY            39.20N 120.22W
11/23/2010  E16.0 INCH       PLACER             CA   PUBLIC          

            ESTIMATED 14-16 INCHES NEW SNOWFALL PAST 24 HOURS AT 6200
            FT. 16-18 INCHES NEW SNOWFALL AT 8200 FT. 

1132 AM     HEAVY SNOW       5 WSW PROSSER CREEK RES 39.34N 120.25W
11/23/2010  M21.0 INCH       NEVADA             CA   TRAINED SPOTTER 

            MEASURED 21 INCHES NEW SNOWFALL AT 6700 FT PAST 24 HOURS 
            WITH MOST OCCURING SINCE 6PM MONDAY. 

1145 AM     HEAVY SNOW       CARNELIAN BAY           39.23N 120.07W
11/23/2010  M12.0 INCH       PLACER             CA   NWS EMPLOYEE    

            12 INCHES NEW SNOWFALL PAST 24 HOURS. 30 INCHES SNOW 
            DEPTH.


&&

$$

JKIELHOR

[Srain]

Keep building that snow pack...

SPECIAL WEATHER STATEMENT

NATIONAL WEATHER SERVICE RENO NV

218 PM PST SAT DEC 4 2010

CAZ070>073-NVZ001>005-051300-

SURPRISE VALLEY CALIFORNIA-LASSEN-EASTERN PLUMAS-

EASTERN SIERRA COUNTIES-GREATER LAKE TAHOE AREA-MONO-

MINERAL AND SOUTHERN LYON COUNTIES-GREATER RENO-CARSON CITY-

MINDEN AREA-WESTERN NEVADA BASIN AND RANGE INCLUDING PYRAMID LAKE-

NORTHERN WASHOE COUNTY-

INCLUDING THE CITIES OF...CEDARVILLE...EAGLEVILLE...

FORT BIDWELL...PORTOLA...SUSANVILLE...WESTWOOD...SIERRAVILLE...

LOYALTON...SOUTH LAKE TAHOE...TAHOE CITY...TRUCKEE...

MARKLEEVILLE...BRIDGEPORT...COLEVILLE...LEE VINING...

MAMMOTH LAKES...HAWTHORNE...YERINGTON...SMITH VALLEY...MINA...

SCHURZ...GLENBROOK...INCLINE VILLAGE...SPARKS...VERDI...

GARDNERVILLE...VIRGINIA CITY...FERNLEY...FALLON...LOVELOCK...

SILVER SPRINGS...NIXON...IMLAY...EMPIRE...GERLACH

218 PM PST SAT DEC 4 2010

...WINTER DRIVING CONDITIONS IN THE SIERRA LATE IN THE WEEKEND...

A LOW PRESSURE SYSTEM DEVELOPING OFF THE COAST OF CALIFORNIA WILL

IMPACT THE SIERRA AND WESTERN NEVADA LATE SUNDAY INTO MONDAY

MORNING. THE LOW WILL MOVE INLAND BRINGING SNOW TO THE SIERRA WITH

MAINLY RAIN IN THE WESTERN NEVADA VALLEYS.

SNOW LEVELS WILL START AROUND 7000 FEET FOR THE LAKE TAHOE AREA AND

7500 FEET FOR MONO COUNTY BEFORE FALLING TO AROUND 5000 FEET BY

MONDAY MORNING. CURRENT ACCUMULATION PROJECTIONS INCLUDE 8 TO 14

INCHES ABOVE 7000 FEET IN THE SIERRA AND 4 TO 8 INCHES ALONG AND

WEST OF HIGHWAY 395 ABOVE 6000 FEET INCLUDING THE LAKE TAHOE

BASIN. LOCAL ACCUMULATIONS MAY REACH 2 FEET IN THE HIGH SIERRA

BACK COUNTRY OF MONO AND ALPINE COUNTIES.

WHILE AN INCH OR TWO OF SNOW IS POSSIBLE IN THE FOOTHILLS OF

WESTERN NEVADA...SNOW ACCUMULATIONS ARE NOT EXPECTED ON THE LOWER

VALLEY FLOORS.

MOTORISTS TRAVELING OVER SIERRA PASSES OR ALONG 395 THROUGH MONO

COUNTY SUNDAY EVENING INTO MONDAY MORNING SHOULD PREPARE FOR WINTER

DRIVING CONDITIONS.

[Srain]

I bet Strat is not a happy camper about now...

URGENT - WINTER WEATHER MESSAGE

NATIONAL WEATHER SERVICE RENO NV

408 PM PST THU DEC 16 2010

...PERIODS OF HEAVY SNOW AND GUSTY WINDS THIS WEEKEND...

.LOW PRESSURE OVER THE NORTHEAST PACIFIC WILL PUSH ABUNDANT

MOISTURE INTO THE SIERRA THIS WEEKEND. SNOW LEVELS WILL BE

VARIABLE THROUGHOUT THE WEEKEND WITH LOWER ELEVATIONS OF THE

SIERRA SEEING RAIN IN THE MIDDLE OF THE EVENT...WITH SNOW ON

EITHER SIDE. THE DETAILS FOR SNOW LEVELS IN EACH AREA CAN BE

FOUND IN THE STATEMENTS BELOW.

LIGHT SNOW WILL BEGIN THE SIERRA ON FRIDAY MORNING...WITH THE

HEAVIEST SNOW OCCURRING FRIDAY NIGHT THROUGH SUNDAY MORNING.

HOURLY SNOWFALL RATES MAY EXCEED 2 TO 4 INCHES PER HOUR DURING THE

STRONGEST PORTION OF THE STORM. 3 TO 8 FEET OF SNOW IS LIKELY IN

THE SIERRA ABOVE 7000 FEET...WHICH WILL SIGNIFICANTLY INCREASE

AVALANCHE DANGER. THOSE LIVING IN REMOTE...HIGHER ELEVATION AREAS

IN THE SIERRA COULD BE SNOWED IN FOR MULTIPLE DAYS AND SHOULD

PREPARE ACCORDINGLY.

STRONG WINDS WILL ACCOMPANY THIS STORM SATURDAY AND SUNDAY WITH

GUSTS OF 50 TO 70 MPH IN THE LOWER ELEVATIONS AND WINDS OF 100

MPH OR MORE OVER THE SIERRA RIDGES. THIS WILL CAUSE CONSIDERABLE

BLOWING AND DRIFTING SNOW WITH WHITEOUT CONDITIONS OVER MOUNTAIN

PASSES AND WIND PRONE AREAS.

THE SNOW WILL BE VERY HEAVY AND WET WHICH COMBINED WITH THE

STRONG...DAMAGING WINDS COULD DOWN POWER LINES AND TREES. THIS MAY

CAUSE WIDESPREAD POWER OUTAGES ACROSS THE SIERRA.

THE SNOW WILL TURN TO RAIN AT LAKE LEVEL SATURDAY AND SATURDAY

NIGHT WITH LOCALIZED POOLING OF WATER LIKELY. DEBRIS AND EXCESS

SNOW SHOULD BE CLEARED FROM GUTTERS AND DRAINAGES DURING THIS

PERIOD TO REDUCE THE RISK OF FLOODING.

CONDITIONS IN THE SIERRA COULD BECOME DANGEROUS THIS WEEKEND DUE

TO RAPID SNOW ACCUMULATIONS AND STRONG WINDS. MOTORISTS SHOULD

CONSIDER ALTERING PLANS TO AVOID THE DANGEROUS TRAVEL CONDITIONS.

TRAVEL RESTRICTIONS ARE LIKELY...WITH ROAD CLOSURES AND LENGTHY

DELAYS POSSIBLE. BACKCOUNTY ACTIVITIES IN THE SIERRA ARE STRONGLY

DISCOURAGED THIS WEEKEND.

[meatwad]

This is the forecast for Mammoth Mountian

Tonight: Snow likely, mainly after 4am. Mostly cloudy, with a low around 13. Breezy, with a southwest wind 5 to 10 mph increasing to between 15 and 20 mph. Winds could gust as high as 30 mph. Chance of precipitation is 60%. Total nighttime snow accumulation of less than one inch possible.

Friday: Snow. High near 24. Windy, with a south wind between 20 and 30 mph, with gusts as high as 45 mph. Chance of precipitation is 100%. New snow accumulation of 5 to 9 inches possible.

Friday Night: Snow. Low around 23. Very windy, with a south wind between 45 and 50 mph, with gusts as high as 80 mph. Chance of precipitation is 100%. New snow accumulation of 17 to 23 inches possible.

Saturday: Snow. High near 27. Strong and damaging winds, with a southwest wind around 70 mph, with gusts as high as 105 mph. Chance of precipitation is 100%. New snow accumulation of 11 to 17 inches possible.

Saturday Night: Snow. Low around 25. Strong and damaging winds, with a southwest wind between 55 and 65 mph, with gusts as high as 100 mph. Chance of precipitation is 100%. New snow accumulation of 22 to 28 inches possible.

Sunday: Snow. High near 25. Very windy. Chance of precipitation is 100%. New snow accumulation of 12 to 18 inches possible.

Sunday Night: Snow likely. Mostly cloudy and very windy, with a low around 16. Chance of precipitation is 70%. New snow accumulation of 2 to 4 inches possible.

[baroclinic_instability]

The Sierras are going to get rocked a new one. Even the GFS spits out 7+" of qpf in the high sierras through 84 hours only! The moist SW flow will remain in place for quite a bit longer too. The totals from this storm will be massive even with high snow levels. 18Z GFS spits out 14+ through the forecast. Localized amounts will be much higher. 12+ feet seems quite easy above 9000 feet in the northern high Sierras.

[aslkahuna]

The Sierras are going to get rocked a new one. Even the GFS spits out 7+" of qpf in the high sierras through 84 hours only! The moist SW flow will remain in place for quite a bit longer too. The totals from this storm will be massive even with high snow levels. 18Z GFS spits out 14+ through the forecast. Localized amounts will be much higher. 12+ feet seems quite easy above 9000 feet in the northern high Sierras.

Have to remember that Sierra snow has a high liquid content with the water ratio in the snow being closer to 6-8:1 rather than the traditional 10:1.

[Southland Wx]

Have to remember that Sierra snow has a high liquid content with the water ratio in the snow being closer to 6-8:1 rather than the traditional 10:1.

Especially considering how warm this storm is going to be. This really is an awesome pattern though. Very out of character considering we have a mod-strong Nina going in the Pacific. One thing's for sure...with the initial base from November up there and the monster snows the next week or so, skiing is going to be phenomenal up there over the next several months, especially if we can stray back into more Nina climo in Jan/Feb, with colder than normal wx.

[NorEaster27]

12-14 Feet for Mammoth?

[daddylonglegs]

This is just crazy. I guess its good for California agriculture, considering i *think* they depend on this snowpack come summer?

[Srain]

Great news for California. The extended drought in Central and Northern California has drained lake levels to unbelievable levels. This year is a good start to replenishing those lake levels.