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Special Weather Statement

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avatar Special Weather Statement
December 23, 2022 04:34PM
National Weather Service RENO NV
121 PM PST Fri Dec 23 2022

CAZ070>073-NVZ001>005-250000-
Surprise Valley California-Lassen-Eastern Plumas-
Eastern Sierra Counties-Greater Lake Tahoe Area-Mono County-
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, Stateline, Glenbrook,
Incline Village, Sparks, Verdi, Gardnerville, Virginia City,
Fernley, Fallon, Lovelock, Silver Springs, Nixon, Imlay, Empire,
and Gerlach
121 PM PST Fri Dec 23 2022

...ACTIVE WEATHER PATTERN RETURNS NEXT WEEK WITH STRONGER WINDS,
HEAVY MOUNTAIN SNOW AND VALLEY RAIN...

For the Christmas weekend, dry and mild conditions will prevail
with valley inversions producing areas of haze especially in urban
areas, and patchy nighttime and morning freezing fog in fog-prone
Sierra valleys.

A series of storms next week will bring periods of gusty winds,
heavy mountain snow and valley rain with potential for widespread
travel and recreation impacts. The strongest storm is currently
expected to affect eastern California and western Nevada Monday
night through Tuesday night.

* WINDS: The strongest winds are most likely from Monday night
through Tuesday morning. For lower elevations of northeast
California, the Tahoe basin and western Nevada, wind gusts of
45-55 mph are anticipated, with gusts possibly exceeding 65 mph
especially in wind prone areas. Gusts well over 100 mph will
occur over Sierra ridges.

* SIERRA RAIN AND SNOW: The heaviest rain and snowfall rates are
expected late Monday night through Tuesday. Snow could begin to
accumulate over the main Sierra passes starting late Tuesday
morning, and into the Lake Tahoe basin and higher elevation
roads of northeast California by Tuesday afternoon, continuing
through Tuesday night. Storm snowfall totals of 2 or more feet
are possible above 8000 feet, with several inches to over 1 foot
possible between 5500 and 8000 feet.

* LOWER ELEVATION RAIN: The heaviest rain is most likely in
western Nevada valleys and foothills Tuesday morning and
afternoon. Rainfall totals could reach 1 inch in the main urban
areas of Reno-Sparks, Carson City and Minden, with up to 2
inches in foothill locations and lighter amounts farther east
into west central Nevada. The rain may end as a short period of
snow or a rain-snow mix by late Tuesday night in foothill
locations, with light snow accumulations possible near and above
5500 feet including areas near Virginia City.

Later next week through the New Year`s holiday weekend,
additional storm systems remain possible. The best chances for
more snow continue to favor the Sierra, but light accumulations
may occur in some western Nevada and eastern California valleys.
The New Year`s Eve period could see an elevated risk for winter
travel impacts and increased winds.

The quiet weather through this weekend brings an opportunity to
plan for winter driving conditions and alternate options if
traveling next week, and to secure or remove outdoor decorations
if they are at risk of damage from strong winds.

$$
avatar Hydrologic Outlook
December 24, 2022 12:54PM
CAC003-005-007-009-011-017-021-057-061-063-067-077-089-091-095-
099-101-103-109-113-115-252000-

Hydrologic Outlook
National Weather Service Sacramento CA
1114 AM PST Sat Dec 24 2022

...Moderate to heavy rain will likely cause some urban and small
stream flooding late Monday through Tuesday...

* WHAT...A significant winter storm will impact the region late
Monday and Tuesday, with showers lingering into Wednesday. This
potent system is tapping into a very moist subtropical plume,
which will allow for moderate, to periods of heavy,
precipitation. Precipitation will begin in the Northern areas
Monday evening, becoming moderate to heavy Monday night, then
spread south across the region early on Tuesday. Rainfall totals
will range from 1.25 to 2.5 inches in the valley, with foothills
and mountains receiving 3 to 5 inches. Locally up to 8 inches
are possible over favored peaks and higher terrain. Moderate to
heavy rain will lead to rapid rises of area rivers, streams, and
creeks. Localized ponding of water for low-lying or poorly
drained areas as well as localized flooding is possible due to
blocked drainages, and storm drains. Main stem rivers are
presently forecast to remain below flood stage, but may rise
above monitor stage in a few locations.

* WHERE...Interior Northern California

* WHEN...Monday night through Tuesday with greatest impacts
expected early Tuesday. Showers will linger through Wednesday,
with runoff expected to continue.

* ADDITIONAL DETAILS...There is a concern for minor mud, rock, and
debris flows that may occur across burn areas. In addition,
strong and gusty winds are expected late Monday night and
Tuesday. Debris from gusty winds may cause drainage blockages
which could create a localized flooding threat. Localized
ponding of water is likely in low-lying or poorly drained areas,
such as freeway off ramps. No mainstem river flooding is
forecast at this time, but mainstream rivers will see rapid
rises, and may reach monitor stage in a few places. More storms
look likely late next week and into the early part of the New
Year. Please monitor the latest forecast for the most up to date
weather information.

$$


Winter Storm Watch
URGENT - WINTER WEATHER MESSAGE
National Weather Service Hanford CA
1224 PM PST Sat Dec 24 2022

CAZ323-326>330-250430-
/O.NEW.KHNX.WS.A.0009.221227T0600Z-221228T1800Z/
Yosemite NP outside of the valley-Upper San Joaquin River-
Kaiser to Rodgers Ridge-Kings Canyon NP-Grant Grove Area-
Sequoia NP-
Including the cities of Tuolumne Meadows, Wawona,
Devils Postpile, Florence Lake, Lake Thomas Edison, Lake Wishon,
Huntington Lake, Shaver Lake, Cedar Grove, Grant Grove,
Hume Lake, Giant Forest, and Lodgepole
1224 PM PST Sat Dec 24 2022

...WINTER STORM WATCH IN EFFECT FROM MONDAY EVENING THROUGH
WEDNESDAY MORNING ABOVE 6000 FEET...

* WHAT...Heavy snow possible above 6000 feet with total snow
accumulations of 1 to 2 feet expected. Winds could gust as high
as 45 mph.

* WHERE...Portions of central California.

* WHEN...From Monday evening through Wednesday morning.

* IMPACTS...Travel could be very difficult. Very
strong winds could cause extensive tree damage.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency.

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.


&&

$$
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