Winter Storm Watch 1, NWS Las Vegas, NV

324 
WWUS45 KVEF 232138
WSWVEF

URGENT - WINTER WEATHER MESSAGE
National Weather Service Las Vegas NV
138 PM PST Sat Jan 23 2021

.A winter storm dropping down through California Sunday will lead
to the potential for significant snowfall over parts of southeast
California, southern Nevada and northwest Arizona late Sunday 
through Monday night.

Another storm system that will arrive Tuesday through Thursday 
will bring another wave of significant snowfall to the Sierra 
Nevada, Owens Valley and White Mountains, which looks to bring 
even more significant accumulations to these areas.

CAZ519-521-241200-
/O.NEW.KVEF.WS.A.0002.210127T0600Z-210129T1200Z/
/O.CON.KVEF.WW.Y.0002.210125T0300Z-210126T0000Z/
Eastern Sierra Slopes-White Mountains of Inyo County-
Including Aspendell
138 PM PST Sat Jan 23 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 7 PM SUNDAY TO
4 PM PST MONDAY...
...WINTER STORM WATCH IN EFFECT FROM TUESDAY NIGHT THROUGH THE
OVERNIGHT HOURS OF THURSDAY INTO FRIDAY...

* WHAT...For the Winter Weather Advisory on Monday, total snow
  accumulations of 1 to 3 inches are expected. For the Winter
  Storm Watch on Wednesday and Thursday, heavy snow possible with
  total snow accumulations of 1 to 3 feet possible.

* WHERE...Eastern Sierra Slopes and White Mountains of Inyo 
  County.

* WHEN...For the Winter Weather Advisory, from 7 PM Sunday to 4 PM
  PST Monday. For the Winter Storm Watch, from Tuesday evening
  through the overnight hours of Thursday into Friday.

* IMPACTS...Travel could be very difficult to impossible,
  especially along Highway 395, State Route 168 through Westgard
  Pass, Highway 190 and Highway 136.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Expect snow covered roads
and limited visibilities, and use caution while driving. 

A Winter Storm Watch means there is potential for significant
snow accumulations that may impact travel. Continue to monitor
the latest forecasts. 

The latest road conditions can be obtained by calling 5 1 1.

&&

$$

NVZ014-241200-
/O.CON.KVEF.WW.Y.0002.210125T0300Z-210126T0000Z/
Esmeralda and Central Nye County-
Including Goldfield, Silver Peak, and Dyer
138 PM PST Sat Jan 23 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 7 PM SUNDAY TO
4 PM PST MONDAY...

* WHAT...Snow expected with total snow accumulations of 3 to 6 
  inches.

* WHERE...Esmeralda and Central Nye County.

* WHEN...From 7 PM Sunday to 4 PM PST Monday.

* IMPACTS...Plan on hazardous road conditions along Highway 6, 
  Highway 95, State Route 265, State Route 266 and State Route 
  774.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Expect snow covered roads
and limited visibilities, and use caution while driving.

The latest road conditions can be obtained by calling 5 1 1.

&&

$$

CAZ520-241200-
/O.NEW.KVEF.WS.A.0002.210127T0600Z-210129T1200Z/
Owens Valley-
Including Bishop, Independence, Lone Pine, and Olancha
138 PM PST Sat Jan 23 2021

...WINTER STORM WATCH IN EFFECT FROM TUESDAY EVENING THROUGH THE
OVERNIGHT HOURS OF THURSDAY INTO FRIDAY...

* WHAT...Heavy snow with total snow accumulations 5 to 8 inches
  with over a foot possible above 4500 feet.

* WHERE...Owens Valley.

* WHEN...From Tuesday evening through the overnight hours of 
  Thursday into Friday.

* IMPACTS...Travel could be very difficult to impossible,
  especially along Highway 395, State Route 168 through Westgard
  Pass, Highway 190 and Highway 136.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Watch means there is potential for significant
snow accumulations that may impact travel. Continue to monitor
the latest forecasts. 

&&

$$

NVZ015-241200-
/O.EXA.KVEF.WS.A.0001.210125T1200Z-210126T1200Z/
Lincoln County-
138 PM PST Sat Jan 23 2021

...WINTER STORM WATCH IN EFFECT FROM 4 AM MONDAY MORNING THROUGH 
4 AM PST TUESDAY MORNING ABOVE 4000 FEET...

* WHAT...Heavy snow possible above 4000 feet with total snow
  accumulations of 4 to 8 inches possible with higher amounts over
  6000 feet.

* WHERE...Lincoln County.

* WHEN...From 4 AM Monday morning through 4 AM PST Tuesday 
  morning.

* IMPACTS...Travel could be very difficult to impossible,
  especially along Highway 93, State Route 168, State Route 318, State
  Route 320, and State Route 375.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Watch means there is potential for significant
snow accumulations that may impact travel. Continue to monitor
the latest forecasts. 

&&

$$

NVZ018-019-241200-
/O.CON.KVEF.WS.A.0001.210125T1200Z-210126T1200Z/
Sheep Range-Spring Mountains-Red Rock Canyon-
Including Hayford Pk and Red Rock Canyon
138 PM PST Sat Jan 23 2021

...WINTER STORM WATCH REMAINS IN EFFECT FROM 4 AM MONDAY MORNING 
THROUGH 4 AM PST TUESDAY MORNING ABOVE 4000 FEET...

* WHAT...Heavy snow possible. Total snow accumulations of 8 to 
  16 inches possible above 6000 feet.

* WHERE...Sheep Range and Spring Mountains-Red Rock Canyon.

* WHEN...From 4 AM Monday morning through 4 AM PST Tuesday 
  morning.

* IMPACTS...Travel could be very difficult to impossible
  especially along State Route 156, State Route 157, State Route
  158 and State Route 160.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Watch means there is potential for significant
snow accumulations that may impact travel. Continue to monitor
the latest forecasts.

&&

$$

CAZ524-241200-
/O.CON.KVEF.WS.A.0001.210125T1200Z-210126T1200Z/
Eastern Mojave Desert-
Including Mountain Pass
138 PM PST Sat Jan 23 2021

...WINTER STORM WATCH REMAINS IN EFFECT FROM 4 AM MONDAY MORNING 
THROUGH 4 AM PST TUESDAY MORNING ABOVE 4000 FEET...

* WHAT...Heavy snow possible above 4000 feet. Total snow 
  accumulations of 3 to 6 inches possible.

* WHERE...Eastern Mojave Desert including I-15 at Mountain Pass.

* WHEN...From 4 AM Monday morning through 4 AM PST Tuesday 
  morning.

* IMPACTS...Travel could be very difficult on I-15 at Mountain
  Pass as well as Kelbaker Road and other roads in the Mojave
  National Preserve.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Watch means there is potential for significant
snow accumulations that may impact travel. Continue to monitor
the latest forecasts.

&&

$$

AZZ003-241200-
/O.CON.KVEF.WS.A.0001.210125T1200Z-210126T1200Z/
Northwest Deserts-
238 PM MST Sat Jan 23 2021

...WINTER STORM WATCH REMAINS IN EFFECT FROM 4 AM MONDAY MORNING 
THROUGH 4 AM PST TUESDAY MORNING ABOVE 4000 FEET...

* WHAT...Heavy snow possible above 4000 feet. Total snow 
  accumulations of 4 to 10 inches possible. Winds could gust as 
  high as 35 mph.

* WHERE...Northwest Deserts including the Hualapai Mountains.

* WHEN...From 4 AM Monday morning through 4 AM PST Tuesday 
  morning.

* IMPACTS...Travel could be very difficult on I-40 east of 
  Kingman, into the Hualapai Mountains and along Route 66 near 
  Peach Springs.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Watch means there is potential for significant
snow accumulations that may impact travel. Continue to monitor
the latest forecasts.

&&

$$

For more information from the National Weather Service visit
https://weather.gov/lasvegas

343 
WWUS45 KVEF 232157 CCA
WSWVEF

URGENT - WINTER WEATHER MESSAGE...CORRECTED
National Weather Service Las Vegas NV
157 PM PST Sat Jan 23 2021

.A winter storm dropping down through California Sunday will lead 
to the potential for significant snowfall over parts of southeast 
California, southern Nevada and northwest Arizona late Sunday 
through Monday night.

Another storm system that will arrive Tuesday through Thursday 
will bring another wave of significant snowfall to the Sierra 
Nevada, Owens Valley and White Mountains, which looks to bring 
even more significant accumulations to these areas.

CAZ519-521-241200-
/O.COR.KVEF.WS.A.0002.210127T0600Z-210129T1200Z/
/O.COR.KVEF.WW.Y.0002.210125T0300Z-210126T0000Z/
Eastern Sierra Slopes-White Mountains of Inyo County-
Including Aspendell
157 PM PST Sat Jan 23 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 7 PM SUNDAY TO
4 PM PST MONDAY...
...WINTER STORM WATCH IN EFFECT FROM TUESDAY NIGHT THROUGH THE
OVERNIGHT HOURS OF THURSDAY INTO FRIDAY...

* WHAT...For the Winter Weather Advisory on Monday, total snow
  accumulations of 3 to 5 inches are expected. For the Winter Storm
  Watch on Wednesday and Thursday, heavy snow possible with total 
  snow accumulations of 1 to 3 feet possible.

* WHERE...Eastern Sierra Slopes and White Mountains of Inyo 
  County.

* WHEN...For the Winter Weather Advisory, from 7 PM Sunday to 4 PM
  PST Monday. For the Winter Storm Watch, from Tuesday evening
  through the overnight hours of Thursday into Friday.

* IMPACTS...Travel could be very difficult to impossible,
  especially along Highway 395, State Route 168 through Westgard
  Pass, Highway 190 and Highway 136.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Expect snow covered roads
and limited visibilities, and use caution while driving. 

A Winter Storm Watch means there is potential for significant
snow accumulations that may impact travel. Continue to monitor
the latest forecasts. 

The latest road conditions can be obtained by calling 5 1 1.

&&

$$

NVZ014-241200-
/O.CON.KVEF.WW.Y.0002.210125T0300Z-210126T0000Z/
Esmeralda and Central Nye County-
Including Goldfield, Silver Peak, and Dyer
157 PM PST Sat Jan 23 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 7 PM SUNDAY TO
4 PM PST MONDAY...

* WHAT...Snow expected with total snow accumulations of 3 to 6 
  inches.

* WHERE...Esmeralda and Central Nye County.

* WHEN...From 7 PM Sunday to 4 PM PST Monday.

* IMPACTS...Plan on hazardous road conditions along Highway 6, 
  Highway 95, State Route 265, State Route 266 and State Route 
  774.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Expect snow covered roads
and limited visibilities, and use caution while driving.

The latest road conditions can be obtained by calling 5 1 1.

&&

$$

CAZ520-241200-
/O.NEW.KVEF.WS.A.0002.210127T0600Z-210129T1200Z/
Owens Valley-
Including Bishop, Independence, Lone Pine, and Olancha
157 PM PST Sat Jan 23 2021

...WINTER STORM WATCH IN EFFECT FROM TUESDAY EVENING THROUGH THE
OVERNIGHT HOURS OF THURSDAY INTO FRIDAY...

* WHAT...Heavy snow with total snow accumulations 5 to 8 inches
  with over a foot possible above 4500 feet.

* WHERE...Owens Valley.

* WHEN...From Tuesday evening through the overnight hours of 
  Thursday into Friday.

* IMPACTS...Travel could be very difficult to impossible,
  especially along Highway 395, State Route 168 through Westgard
  Pass, Highway 190 and Highway 136.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Watch means there is potential for significant
snow accumulations that may impact travel. Continue to monitor
the latest forecasts. 

&&

$$

NVZ015-241200-
/O.EXA.KVEF.WS.A.0001.210125T1200Z-210126T1200Z/
Lincoln County-
157 PM PST Sat Jan 23 2021

...WINTER STORM WATCH IN EFFECT FROM 4 AM MONDAY MORNING THROUGH 
4 AM PST TUESDAY MORNING ABOVE 4000 FEET...

* WHAT...Heavy snow possible above 4000 feet with total snow
  accumulations of 4 to 8 inches possible with higher amounts over
  6000 feet.

* WHERE...Lincoln County.

* WHEN...From 4 AM Monday morning through 4 AM PST Tuesday 
  morning.

* IMPACTS...Travel could be very difficult to impossible,
  especially along Highway 93, State Route 168, State Route 318, State
  Route 320, and State Route 375.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Watch means there is potential for significant
snow accumulations that may impact travel. Continue to monitor
the latest forecasts. 

&&

$$

NVZ018-019-241200-
/O.CON.KVEF.WS.A.0001.210125T1200Z-210126T1200Z/
Sheep Range-Spring Mountains-Red Rock Canyon-
Including Hayford Pk and Red Rock Canyon
157 PM PST Sat Jan 23 2021

...WINTER STORM WATCH REMAINS IN EFFECT FROM 4 AM MONDAY MORNING 
THROUGH 4 AM PST TUESDAY MORNING ABOVE 4000 FEET...

* WHAT...Heavy snow possible. Total snow accumulations of 8 to 
  16 inches possible above 6000 feet.

* WHERE...Sheep Range and Spring Mountains-Red Rock Canyon.

* WHEN...From 4 AM Monday morning through 4 AM PST Tuesday 
  morning.

* IMPACTS...Travel could be very difficult to impossible
  especially along State Route 156, State Route 157, State Route
  158 and State Route 160.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Watch means there is potential for significant
snow accumulations that may impact travel. Continue to monitor
the latest forecasts.

&&

$$

CAZ524-241200-
/O.CON.KVEF.WS.A.0001.210125T1200Z-210126T1200Z/
Eastern Mojave Desert-
Including Mountain Pass
157 PM PST Sat Jan 23 2021

...WINTER STORM WATCH REMAINS IN EFFECT FROM 4 AM MONDAY MORNING 
THROUGH 4 AM PST TUESDAY MORNING ABOVE 4000 FEET...

* WHAT...Heavy snow possible above 4000 feet. Total snow 
  accumulations of 3 to 6 inches possible.

* WHERE...Eastern Mojave Desert including I-15 at Mountain Pass.

* WHEN...From 4 AM Monday morning through 4 AM PST Tuesday 
  morning.

* IMPACTS...Travel could be very difficult on I-15 at Mountain
  Pass as well as Kelbaker Road and other roads in the Mojave
  National Preserve.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Watch means there is potential for significant
snow accumulations that may impact travel. Continue to monitor
the latest forecasts.

&&

$$

AZZ003-241200-
/O.CON.KVEF.WS.A.0001.210125T1200Z-210126T1200Z/
Northwest Deserts-
257 PM MST Sat Jan 23 2021

...WINTER STORM WATCH REMAINS IN EFFECT FROM 4 AM MONDAY MORNING 
THROUGH 4 AM PST TUESDAY MORNING ABOVE 4000 FEET...

* WHAT...Heavy snow possible above 4000 feet. Total snow 
  accumulations of 4 to 10 inches possible. Winds could gust as 
  high as 35 mph.

* WHERE...Northwest Deserts including the Hualapai Mountains.

* WHEN...From 4 AM Monday morning through 4 AM PST Tuesday 
  morning.

* IMPACTS...Travel could be very difficult on I-40 east of 
  Kingman, into the Hualapai Mountains and along Route 66 near 
  Peach Springs.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Watch means there is potential for significant
snow accumulations that may impact travel. Continue to monitor
the latest forecasts.

&&

$$

For more information from the National Weather Service visit
https://weather.gov/lasvegas

259 
WWUS45 KVEF 241139
WSWVEF

URGENT - WINTER WEATHER MESSAGE
National Weather Service Las Vegas NV
339 AM PST Sun Jan 24 2021

.A winter storm dropping down through California Sunday will lead
to the potential for significant snowfall over parts of southeast
California, southern Nevada and northwest Arizona late Sunday
through Tuesday morning.

Another storm system that will arrive Wednesday through Friday 
will bring another wave of significant snowfall to the Sierra 
Nevada, Owens Valley and White Mountains, which looks to bring 
even more significant accumulations to these areas.

NVZ018-019-250000-
/O.UPG.KVEF.WS.A.0001.210125T1200Z-210126T1200Z/
/O.NEW.KVEF.WS.W.0001.210125T1200Z-210126T1800Z/
Sheep Range-Spring Mountains-Red Rock Canyon-
Including Hayford Pk and Red Rock Canyon
339 AM PST Sun Jan 24 2021

...WINTER STORM WARNING IN EFFECT FROM 4 AM MONDAY TO 10 AM PST
TUESDAY...

* WHAT...Heavy snow expected. Total snow accumulations of 2 to 8
  inches at Red Rock Canyon and 11 to 16 inches in the higher
  elevations of the Spring Mountains and Sheep Range.

* WHERE...Sheep Range and Spring Mountains-Red Rock Canyon.

* WHEN...From 4 AM Monday to 10 AM PST Tuesday.

* IMPACTS...Travel could be very difficult to impossible.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions will make travel very hazardous or impossible. If you
must travel, keep an extra flashlight, food and water in your
vehicle in case of an emergency. 

The latest road conditions can be obtained by calling 5 1 1.

&&

$$

AZZ003-250000-
/O.UPG.KVEF.WS.A.0001.210125T1200Z-210126T1200Z/
/O.NEW.KVEF.WS.W.0001.210125T1200Z-210126T1800Z/
Northwest Deserts-
Including Kingman
439 AM MST Sun Jan 24 2021

...WINTER STORM WARNING IN EFFECT FROM 5 AM MONDAY TO 11 AM MST
TUESDAY ABOVE 2000 FEET...

* WHAT...Heavy snow expected above 2000 feet. Total snow
  accumulations of 2 to 4 inches between 2000 and 4000 feet and 6
  to 11 inches above 4000 feet. Winds gusting as high as 35 mph.

* WHERE...Northwest Deserts.

* WHEN...From 5 AM Monday to 11 AM MST Tuesday.

* IMPACTS...Travel could be very difficult.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions will make travel very hazardous or impossible. If you
must travel, keep an extra flashlight, food and water in your
vehicle in case of an emergency. 

The latest road conditions can be obtained by calling 5 1 1.

&&

$$

CAZ524-NVZ015-250000-
/O.UPG.KVEF.WS.A.0001.210125T1200Z-210126T1200Z/
/O.NEW.KVEF.WS.W.0001.210125T1200Z-210126T1800Z/
Eastern Mojave Desert-Lincoln County-
Including Mountain Pass
339 AM PST Sun Jan 24 2021

...WINTER STORM WARNING IN EFFECT FROM 4 AM MONDAY TO 10 AM PST
TUESDAY ABOVE 4000 FEET...

* WHAT...Heavy snow expected above 4000 feet. Total snow
  accumulations of 3 to 9 inches.

* WHERE...In Nevada, Lincoln County. In California, Eastern 
  Mojave Desert.

* WHEN...From 4 AM Monday to 10 AM PST Tuesday.

* IMPACTS...Travel could be very difficult to impossible on
  Interstate 15 going through Mountain Pass as well as east of
  Panaca, NV on NV-319.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions will make travel very hazardous or impossible. If you
must travel, keep an extra flashlight, food and water in your
vehicle in case of an emergency. 

The latest road conditions can be obtained by calling 5 1 1.

&&

$$

AZZ001-250000-
/O.NEW.KVEF.WS.W.0001.210125T1200Z-210126T1800Z/
Northwest Plateau-
439 AM MST Sun Jan 24 2021

...WINTER STORM WARNING IN EFFECT FROM 5 AM MONDAY TO 11 AM MST
TUESDAY...

* WHAT...Heavy snow expected above 3000 feet. Total snow
  accumulations of 2 to 6 inches.

* WHERE...Northwest Plateau.

* WHEN...From 5 AM Monday to 11 AM MST Tuesday.

* IMPACTS...Plan on slippery road conditions including in the
  Virgin River Gorge on Interstate 15. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions will make travel very hazardous or impossible. If you
must travel, keep an extra flashlight, food and water in your
vehicle in case of an emergency. 

The latest road conditions can be obtained by calling 5 1 1.

&&

$$

NVZ017-020-022-250000-
/O.EXB.KVEF.WW.Y.0002.210125T1200Z-210126T1800Z/
Western Clark and Southern Nye County-Las Vegas Valley-
Southern Clark County-
Including Pahrump, Henderson, and Primm
339 AM PST Sun Jan 24 2021

...WINTER WEATHER ADVISORY IN EFFECT FROM 4 AM MONDAY TO 10 AM
PST TUESDAY ABOVE 2000 FEET...

* WHAT...Snow expected above 2000 feet. Total snow accumulations
  of up to 1 inch in the central and eastern Las Vegas Valley
  including the Las Vegas Strip, Henderson, and North Las Vegas.
  Summerlin, the far southwest Las Vegas Valley, Desert Rock,
  southern Clark County, and Pahrump could see up to 2-4 inches. 

* WHERE...Western Clark and Southern Nye County, Las Vegas 
  Valley and Southern Clark County.

* WHEN...From 4 AM Monday to 10 AM PST Tuesday.

* IMPACTS...Travel could be very difficult to impossible,
  especially along Nevada state roads 159, 160, and Highway 95.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Expect snow covered roads
and limited visibilities, and use caution while driving. 

The latest road conditions can be obtained by calling 5 1 1.

&&

$$

CAZ519-521-250000-
/O.CON.KVEF.WW.Y.0002.210125T0300Z-210126T0000Z/
/O.CON.KVEF.WS.A.0002.210127T0600Z-210129T1200Z/
Eastern Sierra Slopes-White Mountains of Inyo County-
Including Aspendell
339 AM PST Sun Jan 24 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 7 PM THIS
EVENING TO 4 PM PST MONDAY...
...WINTER STORM WATCH REMAINS IN EFFECT FROM TUESDAY EVENING
THROUGH LATE THURSDAY NIGHT...

* WHAT...For the Winter Weather Advisory on Monday, total snow 
  accumulations of 3 to 5 inches are expected. For the Winter 
  Storm Watch on Wednesday and Thursday, heavy snow possible 
  with total snow accumulations of 1 to 3 feet possible.

* WHERE...Eastern Sierra Slopes and White Mountains of Inyo 
  County.

* WHEN...For the Winter Weather Advisory, from 7 PM Sunday to 4 
  PM PST Monday. For the Winter Storm Watch, from Tuesday 
  evening through the overnight hours of Thursday into Friday.

* IMPACTS...Travel could be very difficult to impossible,
  especially along Highway 395, State Route 168 through Westgard
  Pass, Highway 190 and Highway 136.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Expect snow covered roads
and limited visibilities, and use caution while driving. 

A Winter Storm Watch means there is potential for significant
snow accumulations that may impact travel. Continue to monitor
the latest forecasts. 

The latest road conditions can be obtained by calling 5 1 1.

&&

$$

NVZ014-250000-
/O.CON.KVEF.WW.Y.0002.210125T0300Z-210126T0000Z/
Esmeralda and Central Nye County-
Including Goldfield, Silver Peak, and Dyer
339 AM PST Sun Jan 24 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 7 PM THIS
EVENING TO 4 PM PST MONDAY...

* WHAT...Snow expected with total snow accumulations of 3 to 7 
  inches.

* WHERE...Esmeralda and Central Nye County.

* WHEN...From 7 PM Sunday to 4 PM PST Monday.

* IMPACTS...Plan on hazardous road conditions along Highway 6,
  Highway 95, State Route 265, State Route 266 and State Route
  774.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Expect snow covered roads
and limited visibilities, and use caution while driving. 

The latest road conditions can be obtained by calling 5 1 1.

&&

$$

CAZ520-250000-
/O.CON.KVEF.WS.A.0002.210127T0600Z-210129T1200Z/
Owens Valley-
Including Bishop, Independence, Lone Pine, and Olancha
339 AM PST Sun Jan 24 2021

...WINTER STORM WATCH REMAINS IN EFFECT FROM TUESDAY EVENING
THROUGH LATE THURSDAY NIGHT...

* WHAT...Heavy snow with total snow accumulations 5 to 8 inches 
  with over a foot possible above 4500 feet.

* WHERE...Owens Valley.

* WHEN...From Tuesday evening through the overnight hours of 
  Thursday into Friday.

* IMPACTS...Travel could be very difficult to impossible,
  especially along Highway 395, State Route 168 through Westgard
  Pass, Highway 190 and Highway 136.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Watch means there is potential for significant
snow accumulations that may impact travel. Continue to monitor
the latest forecasts. 

&&

$$

For more information from the National Weather Service visit
https://weather.gov/lasvegas

Area Forecast Discussion
National Weather Service Las Vegas NV
810 PM PST Fri Jan 22 2021

.SYNOPSIS...An active weather pattern will bring multiple low
pressure systems across the region. The first will continue to
impact our region this afternoon and evening with elevated southerly
winds areawide and scattered showers and thunderstorms in
southeastern Nevada and northwestern Arizona. A much colder system
will arrive early next week bringing measurable snow to the
mountains, rain for many of the valleys and the chance of low
elevation snowfall. Late in the week, systems will take advantage of
moisture from the atmospheric river, allowing the Sierra Nevada to
accumulate significant snowfall.
&&

.UPDATE...All the Wind Advisories were allowed to expire at 6 pm
PST. The exception was for the Morongo Basin where the advisory was
extended through 9 pm PST.

Next issue this evening other than the thunderstorms has been a
persistent area of cooling tops over Tonopah. Airport has been
reporting light to heavy snow much of the evening. Gas station in
Tonopah estimated 1" earlier. Also, Esmeralda S.O. did report an
incident on Highway 95 at the Tonopah Summit due to the heavy snow.
With snow forecast to last several more hours around parts of
Esmeralda County and additional periods of snow forecast for Lincoln
County tonight have gone ahead and issued a Winter Weather Advisory
until 4 am Saturday. Some areas above 5000 feet may see 3-6 inches
of accumulation.
&&

.SHORT TERM...Today through Sunday.

The first of several systems will continue to push through the area
today before a reinforcing area of low pressure spins up and around
the previous low, to bring lingering impacts. Wind Advisories remain
in effect for western San Bernardino County up through Death Valley,
eastward including western Clark County through 6pm PST tonight.
Lake Wind Advisories for Lake Mead Recreation Area continue through
6pm as well as southerly wind gusts persist through sunset.

Other than windy conditions, precipitation chances enter the
forecast for much of Lincoln, Clark and Mohave counties this
evening, with the best chances between 4pm and midnight PST tonight.
Looking at forecast RAP and HRRR soundings for KLAS and KIGM (Las
Vegas and Kingman), there exists a decent amount of CAPE as well as
shear this evening. Though 250 J/kg of CAPE would be nothing to
write home about in the Midwest or even during monsoon season, it is
a decent amount to have in winter, particularly when coupled with
upper level shear. Are we expecting severe thunderstorms tonight?
No, but a rumble of thunder is not out of the question. For
elevations below 6000 ft, the bulk of the precipitation expected
tonight will be in the form of rain. However, above 6000 ft, snow is
expected. Further, if a convective cell forms over higher elevation,
convective snow has the capability of dropping a substantial amount
of snow in a short period of time, with potential rain rates 2-
3"/hour. For this reason, confidence is moderate regarding snowfall
totals tonight, as isolated higher amounts are possible underneath a
stronger cell. All in all, this event will shape up to be relatively
minor compared to next week's systems. Widespread precipitation
amounts between 0.10" and 0.30" expected tonight, though when the
reinforcing area of low pressure swings around, so will additional
chances of precipitation along southern Mohave County and
southeastern San Bernardino County, that could amount to an
additional 0.10" to 0.25" Saturday and Sunday. Otherwise, most areas
can enjoy a break with dry weather on Sunday as we gear up for what
the coming work week has in store.

Winds will be overall calmer through the weekend than today, though
elevated southerly winds can be expected. Temperatures will drop
about 10 degrees between today's highs and tomorrow's highs, as the
cold front pushes through the region tonight.

Impacts are overall anticipated to be minor, but it is important to
note that grime, oil and dirt build up on the roadways due to months
without widespread wetting rains need very little rain to become
incredibly slick. Double the distance between you and the car in
front of you when driving, if you can, than you normally do.

.LONG TERM...Monday through Thursday.

The parade of weather continues. Monday morning, the next system
will dip down the Western CONUS. Originating from Alaska, this
system is substantially colder than its predecessors. As such, snow
levels will drop to 3000 feet or lower, potentially reaching valley
floors in some areas. As a result, measurable snowfall can be
expected above 3500 ft, with a dusting to an inch possible even
lower. Snow chances continue to remain elevated across the region on
Monday, particularly, Monday morning. Looking at probabilistic NBM
resources, valleys such as Las Vegas, Yucca Valley, and Bishop can
expect to see snow in some capacity on Monday, with 40%, 72% and 78%
respectively. ECMWF ensemble members are increasing in confidence as
well regarding measurable snowfall here in Las Vegas, with only one
member keeping all of the precipitation as rain. What does this mean
for impacts? What about the roads? Though snow is possible,
accumulating snow is not as likely, with Las Vegas sporting a
whopping 1% chance of snow greater than 1 inch (though Yucca Valley
and Bishop have better odds with 35% and 55% respectively).
Additionally, ambient temperatures are not expected to drop low
enough in Las Vegas to cool roadways and allow snow to accumulate.
What could be a potential concern is black ice, depending on how
much rain Las Vegas gets during the day on Monday, followed by how
cold it gets Monday night/Tuesday morning. There is a nonzero chance
of isolated spots of black ice around the valley if temperatures dip
low enough for long enough. Chances of this at this time are low.

The "Shift of Tails" from the Ensemble Situational Awareness Table,
continues to indicate climatologically significant rainfall amounts
across southern Nevada and northwestern Arizona Monday, further
enhancing confidence. What is also shows, of note, is a
climatologically significant amount of CAPE across the forecast area
on Monday. This would indicate that there may be enough dynamics in
place to overcome potentially meager moisture amounts... and would
increase rain rates if there is a substantial amount of moisture
left over from the weekend system. Regarding snowfall...confidence
is not currently high enough to warrant any Winter Weather headlines
at this time. Additionally, we want to avoid putting out any
headlines this afternoon for Monday, as we don't want people to
confuse the headlines with tonight's event. Snowfall rates will be
highest Monday morning, decreasing through the event, with
measurable amounts expected above 3500 ft. Due to low confidence in
moisture potential, there is low confidence in precise snow totals
at this time, but are trending upward for higher elevations and
lower for the valleys.

Wind does not look to be a major impact for most of the area for
this system, but elevated southerly breezes can be expected. That
said, areas with lower anticipated rain rates can expect stronger
wind gusts. Areas that fit this description include cities south of
I-40 including Barstow-Daggett and Lake Havasu City as well as
potentially Yucca Valley and Twentynine Palms. Lake Wind products
for Lake Havasu will be reevaluated as we get closer and have
increased confidence, as these winds could result in waves 1.5-2.5
feet if they come to fruition. Additionally, local wind guidance as
well as CONSMOS continue to trend upward for western San Bernardino
County, so wind headlines may be necessary as we get closer and
confidence increases.

But wait, there's more. The next system to drop down will coincide
with a surge of moisture as a fairly robust atmospheric river
funnels into the western CONUS. This system has the potential to
dumb a substantial amount of snow on the Sierra Nevada and White
Mountain ranges with chances of light rainfall elsewhere.
&&

.AVIATION...For McCarran...Clouds continue to this
afternoon as chances for rain increase into this evening. A few
showers and isolated thunderstorms can be expected through the
evening hours, ending by midnight. The greatest potential for
showers and isolated thunderstorms impacting the terminal area will
be between 01z-08z. Clouds as low as 4k-6k feet will be possible
with heavier shower activity. Southerly winds will continue at
around 15 kts gusting to 25 kts through 06z when wind will begin to
slowly subside.

For the rest of southern Nevada, northwest Arizona and southeast
California...Windy conditions prevail over much of the area this
evening as a weather system moves through the area. Southerly winds
of 10-15 kts gusting to over 25 kts has been common, particularly
along the Colorado River Valley. This will continue through the
evening before winds begin to decrease after about 08z. Showers
and isolated thunderstorms are possible this evening with the
greatest chance between 01z and 08z. CIGs as low as 3-5kft are
expected along the Colorado River and in areas through 08z and in
areas with ongoing precipitation. Over southeast California, cloud
bases will be higher, AOA 15kft except in areas of showers and
precipitation will be more isolated.
&&

.SPOTTER INFORMATION STATEMENT...Spotters are encouraged to report
any significant weather or impacts according to standard operating
procedures.
&&

UPDATE...Pierce

DISCUSSION...Varian
AVIATION...Berc

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