Weather

Statement as of 3:14 PM PST on November 20, 2009

Expires 1:00 AM EST on November 21, 2009

... Winter Storm Warning remains in effect until 10 PM PST this
evening...

A Winter Storm Warning remains in effect until 10 PM PST this
evening from eastern Shasta County down along the West Slope
northern Sierra Nevada.

* Timing: precipitation will continue through tonight. Snow
levels will initially range between 4000 feet over the northern
mountains and 5000 feet over the Sierra this morning... but then
fall to around 3000 feet tonight.

* Winds: local southwesterly wind gusts upwards of 65 mph will
continue through this evening over Sierra ridgetops.

* Snow: over the higher mountains... a foot or two of total
snowfall is possible... with 6 to 12 inches between 4000 and 7000
ft.

* Impacts: treacherous traveling conditions from slick roads and
visibilities dropping to near zero at times due to snow and
blowing snow.

Precautionary/preparedness actions...

A Winter Storm Warning means significant amounts of snow...
blowing snow... and possibly mixed with some sleet are expected or
occurring. Strong winds are also possible. This will make travel
very hazardous or impossible.



Jmc

11/20/2009 1133 am

2 miles W of Loyalton, Sierra County.

Non-thunderstorm wind gust m65.00 mph, reported by trained spotter.


            Spotter reported sustained winds of 55 mph and a gust 65
            mph.




11/20/2009 1255 PM

3 miles se of Truckee, Placer County.

Non-thunderstorm wind gust m64.00 mph, reported by AWOS.


            Peak gust at Truckee-Tahoe Airport. El. 5899 ft.




11/20/2009 0150 PM

5 miles SSW of Tahoe City, Placer County.

Snow e0.0 inch, reported by trained spotter.


            Spotter in Tahoma reported heavy snow with small tree
            limbs coming down. Snow is accumulating on all suraces.




11/20/2009 0239 PM

NW South Lake Taho, El Dorado County.

Snow m0.2 inch, reported by trained spotter.


            So far on ground




11/20/2009 0334 PM

4 miles W of Prosser creek ourth, Nevada County.

Snow m5.0 inch, reported by trained spotter.


            5.0 inches measured since 1pm at 6500 feet. Currently 28
            degrees with 1/2 mile visibility.




11/20/2009 0344 PM

3 miles ENE of alpine meadosden, Placer County.

Snow e3.0 inch, reported by trained spotter.


            Snow began around 1pm. Visibility 500 feet in heavy snow
            with gusts 30-35 mph. One foot drifts.




11/20/2009 0446 PM

5 miles SSW of Tahoe City, Placer County.

Snow m6.0 inch, reported by trained spotter.


            Current snowfall total as of 5pm. Currently still snowing
            heavily.




11/20/2009 0459 PM

5 miles ENE of Cisco, Nevada County.

Heavy snow m7.5 inch, reported by trained spotter.





11/20/2009 0513 PM

Tahoe City, Placer County.

Snow m4.0 inch, reported by co-op observer.


            Snowfall total as of 5pm at the U.S.C.G. Station Lake
            Tahoe.




11/20/2009 0334 PM

4 miles W of Prosser creek , Nevada County.

Snow m5.0 inch, reported by trained spotter.


            5.0 inches measured since 1pm at 6500 feet. Currently 28
            degrees with 1/2 mile visibility.




11/20/2009 0344 PM

3 miles ENE of alpine meadoon, Placer County.

Snow e3.0 inch, reported by trained spotter.


            Snow began around 1pm. Visibility 500 feet in heavy snow
            with gusts 30-35 mph. One foot drifts.




11/20/2009 0446 PM

5 miles SSW of Tahoe City, Placer County.

Snow m6.0 inch, reported by trained spotter.


            Current snowfall total as of 5pm. Currently still snowing
            heavily.





11/20/2009 0150 PM

5 miles SSW of Tahoe City, Placer County.

Snow e0.0 inch, reported by trained spotter.


            Spotter in Tahoma reported heavy snow with small tree
            limbs coming down. Snow is accumulating on all suraces.




11/20/2009 0239 PM

NW South Lake Taho, El Dorado County.

Snow m0.2 inch, reported by trained spotter.


            So far on ground




11/20/2009 1145 am

Blue Canyon, Placer County.

Sleet e0.00 inch, reported by NWS employee.


            Ice pellets reported at 5273 feet. Winds were 20 to 30
            mph sustained.




11/20/2009 1133 am

2 miles W of Loyalton, Sierra County.

Non-thunderstorm wind gust m65.00 mph, reported by trained spotter.


            Spotter reported sustained winds of 55 mph and a gust 65
            mph.

Statement as of 5:36 PM PST on November 20, 2009

... Public information statement...

Preliminary wind gust information from 20 November 2009 storm.


Central Valley and Delta...

Redding... ... ... ... ... ... ... ..24 mph at 1253 PM
Red Bluff... ... ... ... ... ... ... 32 mph at 102 PM
Sacramento international ap... 30 mph at 1122 am
Sacramento executive ap... ... .21 mph at 1153 am
Marysville... ... ... ... ... ... ..33 mph at 1158 am
Chico... ... ... ... ... ... ... ... .38 mph at 926 am
Oroville... ... ... ... ... ... ... .35 mph at 851 am
Stockton... ... ... ... ... ... ... .27 mph at 355 PM
Suisun... ... ... ... ... ... ... ... 37 mph at 1112 am


Mountains and foothills...

Zone 13 Sugarloaf 3214 ft... ... .33 mph
zone 14 Burney 3136 ft... ... ... .49 mph
... ... ..Soldier mtn 3704 ft... ..57 mph
zone 63 Eagle Peak 3713 ft... ... 40 mph
zone 64 Lyons Valley 3200 ft... .60 mph
... ... ..konocti 2163 ft... ... ... 42 mph
zone 66 Cohasset 1733 ft... ... ..35 mph
zone 67 Pike co lookout 3714 ft.43 mph
zone 68 Manzanita lk 5660 ft... .38 mph
zone 69 Blue Canyon 5280 ft... ..46 mph
... ... ..Squaw Valley 8200 ft... .55 mph
... ... ..Sugar Bowl 6975 ft... ... 53 mph


For precipitation amounts... .see the rtp... regional temperature
and precipitation summary.

Snowfall amounts/estimates will be available on Saturday.