Alert archive / Nevada / Winter Storm Warnings in 2015

Winter Storm Warning 1, NWS Las Vegas, NV

February 21, 2015Clark County, Lincoln County, Nye County, Nevada; Mohave County, Arizona

NWS Las Vegas, NV issued this winter storm warning at Feb 21, 2015, 2:25 PM PST for Clark County, Lincoln County, Nye County, Nevada; Mohave County, Arizona. It took effect at Feb 22, 2015, 4:00 AM PST. It was in force for 36 hr. 32 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Feb 21, 2015, 2:25 PM PST (22:25 UTC)
In effect from
Feb 22, 2015, 4:00 AM PST
Expired
Feb 23, 2015, 4:00 PM PST
In force
36 hr
Issued by
NWS Las Vegas, NV

Counties Mohave County, AZ, Clark County, NV, Lincoln County, NV, Nye County, NV

The radar

The Las Vegas radar (KESX), 134 km from the middle of the area, began a volume at 22:22 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

TimeReportWhereRemark
Feb 22, 5:00 PM PSTHEAVY SNOW 101 Ne Mt. Charleston, NV10 INCHES OF SNOW REPORTED AT MT CHARLESTON SKI RESORT AT LEE CANYON AT 9200 FEET. SNOW FELL HEAVILY SINCE 5PM SUNDAY FEB 22.
Feb 22, 5:00 PM PSTHEAVY SNOW 101 Ne Mt. Charleston, NV10 INCHES OF SNOW REPORTED AT MT CHARLESTON SKI RESORT AT LEE CANYON. SNOW FELL HEAVILY SINCE 5PM SUNDAY FEB 22.
Feb 23, 3:00 AM PSTHEAVY SNOW 122 S Mountain Springs, NVTWELVE INCHES OF SNOW FELL AT THE MOUNT POTOSI BOY SCOUT CAMP /ELEVATION 5500 FEET/ BETWEEN 10 PM SUNDAY AND 6 AM MONDAY.
Feb 23, 3:30 AM PSTSNOW 1.54 Ssw Summerlin, NVOFF DUTY NWS EMPLOYEE MEASURED 1.5 INCHES OF SNOW IN NEIGHBORHOOD AT ELEV OF ROUGHLY 3100 FT
Feb 23, 3:30 AM PSTSNOW 1.54 Ssw Summerlin, NVOFF DUTY NWS EMPLOYEE MEASURED 1.5 INCHES OF SNOW IN NEIGHBORHOOD AT ELEV OF ROUGHLY 3100 FT FROM AROUND 2 AM THROUGH 330 AM. SNOW BEGAN BY 115 AM BUT DID NOT ACCUMULATE ON THE GROUND AND SNOWBOARD UNTIL AROUND 2 AM.
Feb 23, 4:15 AM PSTSNOW 0.52 Wnw Mountains Edge, NVOFF DUTY NWS EMPLOYEE REPORTS ROUGHLY 0.5 INCH OF SNOW IN NEIGHBORHOOD.
Feb 23, 4:15 AM PSTSNOW 0.52 Wnw Mountains Edge, NVOFF DUTY NWS EMPLOYEE REPORTS ROUGHLY 0.5 INCH OF SNOW IN NEIGHBORHOOD AT AN ELEVATION OF 2800 FEET.
Feb 23, 4:58 AM PSTSNOW 05 Ene Sloan, NVSNOW MIXED WITH RAIN AT THE HENDERSON EXECUTIVE AIRPORT AT AN ELEVATION OF 2493 FEET. SNOW COATED THE GROUND IN ANTHEM WITH AT LEAST A HALF AN INCH ON SOME SURFACES PER SPOTTER PHOTOS.
Feb 23, 7:00 AM PSTSNOW 2Searchlight, NVA SEARCHLIGHT GAS STATION EMPLOYEE ESTIMATED ABOUT 2 INCHES OF SNOW STUCK ON UNPAVED SURFACES IN SEARCHLIGHT AT AROUND 3600 FEET. RAIN CHANGED TO SNOW AND THE SNOW LASTED ABOUT 5 HOURS. VISIBILITY WAS SHARPLY REDUCED FOR DRIVERS MAKING IT HARD TO SEE THE MIDDL
Feb 23, 7:00 AM PSTHEAVY SNOW 6Pipe Spring National Mo, AZPIPE SPRING NATIONAL MONUMENT MEASURED 6.0 INCHES OF SNOW AT AN ELEVATION OF 4920 FEET.
Feb 23, 7:00 AM PSTHEAVY SNOW 6Red Rock Canyon, NVSNOW RESULTED IN THE CLOSURE OF THE RED ROCK CANYON SCENIC LOOP AND OVERLOOK ON THE 23RD ALL DAY.
Feb 23, 7:00 AM PSTHEAVY SNOW 6Spring Mountain Ranch, NVRAIN CHANGED TO SNOW LATE SUNDAY EVENING AND BY 7 AM ON THE 23RD TOTALED 6.0 INCHES OF SNOW AT SPRING MOUNTAIN RANCH STATE PARK AT 3780 FEET.
Feb 23, 7:00 AM PSTHEAVY SNOW 6.56 S Red Rock Canyon, NVLAS VEGAS BROADCAST MEDIA REPORTED BETWEEN 6 AND 7 INCHES OF SNOW FELL FROM LATE SUNDAY EVENING INTO MONDAY MORNING AT THE BONNIE SPRINGS RANCH AT AN ELEVATION OF 3700 FEET.
Feb 23, 7:30 AM PSTSNOW 2Caliente, NVCALIENTE CO-OP OBSERVER MEASURED 2.0 INCHES OF SNOW AT AN ELEVATION OF 4379 FEET.
Feb 23, 8:00 AM PSTSNOW 0.72 Wnw Rachel, NVRACHEL MEASURED A STORM TOTAL OF 0.7 INCH OF SNOW WITH 0.5 INCH FOR THE 24 HOUR PERIOD ENDING AT 8 AM ON 2/23 AT AN ELEVATION OF 4820 FEET.
Feb 23, 8:00 AM PSTSNOW 12 Nw Panaca, NVCATHEDRAL GORGE STATE PARK MEASURED 1.0 INCH OF SNOW FOR THE 24 HOUR PERIOD ENDING AT 8 AM AT AN ELEVATION OF 4830 FEET.
Feb 23, 8:00 AM PSTSNOW 1Meadview, AZMEADVIEW CO-OP OBSERVER MEASURED 1.0 INCH OF SNOW AT AN ELEVATION OF 2900 FEET.
Feb 23, 8:00 AM PSTHEAVY SNOW 11.5Mt. Charleston, NVMT CHARLESTON NDF STATION IN KYLE CANYON MEASURED A STORM TOTAL OF 11.5 INCHES OF SNOW FROM 2/22 THROUGH THE MORNING OF 2/23 AT AN ELEVATION OF 7450 FEET.
Feb 23, 8:13 AM PSTSNOW 3Colorado City, AZ3 INCHES OF SNOW FALLING STARTING AT 10PM THE 22ND WITH LIGHT SNOW TAPERING OFF AT 8AM. SOME BLOWING SNOW OBSERVED OVERNIGHT.
Feb 23, 8:13 AM PSTSNOW 3Colorado City, AZ3 INCHES OF SNOW FELL STARTING AT 10PM THE 22ND WITH LIGHT SNOW TAPERING OFF AT 8AM AT AN ELEVATION OF 5400 FEET. SOME BLOWING SNOW OBSERVED OVERNIGHT.
Feb 23, 9:00 AM PSTSNOW 23 Se Spring Mountain Ra, NVESTIMATED AROUND 2 INCHES OF SNOW AS OF 9AM THIS MORNING AT 3300 FEET. EVENT BEGAN AFTER MIDNIGHT.
Feb 23, 9:00 AM PSTSNOW 23 Se Spring Mountain Ra, NVESTIMATED AROUND 2 INCHES OF SNOW AS OF 9AM THIS MORNING. EVENT BEGAN AFTER MIDNIGHT.
Feb 23, 9:51 AM PSTSNOW 2Caliente, NV
Feb 23, 9:51 AM PSTHEAVY SNOW 6Pipe Spring National Mo, AZ
Feb 23, 9:51 AM PSTHEAVY SNOW 11.4Mt. Charleston, NV
Feb 23, 10:28 AM PSTSNOW 0.5Goodsprings, NVGOODSPRINGS CO-OP OBSERVER MEASURED 0.5 INCH OF SNOW AT AN ELEVATION OF 3708 FEET.
Feb 23, 10:28 AM PSTSNOW 0.5Goodsprings, NV
Feb 23, 11:46 AM PSTHEAVY SNOW 10Mountain Springs, NVMOUNTAIN SPRINGS FIRE DEPARTMENT MEASURED 10.0 INCHES OF SNOW AT 5400 FEET.
Feb 23, 11:46 AM PSTHEAVY SNOW 10Mountain Springs, NV
Feb 23, 12:08 PM PSTSNOW 53 Ssw Red Rock Canyon, NVAN OFF DUTY NWS EMPLOYEE MEASURED 5 INCHES OF SNOW AT THE OAK CREEK CANYON TRAILHEAD AT AN ELEVATION OF 3800 FEET.
Feb 23, 12:08 PM PSTSNOW 53 Ssw Red Rock Canyon, NVOAK CREEK CANYON TRAILHEAD
Feb 23, 4:00 PM PSTSNOW 27 N I-40 At Fort Rock, AZDIAMOND M RANCH MEASURED 2.0 INCHES OF SNOW FROM 4 AM TO 4 PM AT AN ELEVATION OF 5492 FEET.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Las Vegas, NV (KVEF), launched 12:00Z, 10.4 hours before the alert went out and 74 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Las Vegas, NV at 12:00Z on 2015-02-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Las Vegas, NV at 12:00Z on 2015-02-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -35 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
3606 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
-35 m²/s²
0-3 km storm-relative helicity
171 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

589 
WWUS45 KVEF 212225
WSWVEF

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE LAS VEGAS NV
225 PM PST SAT FEB 21 2015

...WINTER WEATHER IS ON THE WAY WITH WIDESPREAD SNOW EXPECTED ABOVE
5000 FEET...

.A STRONG AND COLD STORM SYSTEM WILL TAKE SHAPE ON SUNDAY WITH
WIDESPREAD RAIN AND MOUNTAIN SNOW EXPECTED. LATEST TRENDS TAKE THIS
SYSTEM A BIT FURTHER SOUTH THAN PREVIOUS FORECASTS WITH THE HEAVIEST
SNOWFALL IN THE MOUNTAINS OF CLARK AND MOHAVE COUNTIES.
LIGHTER...BUT STILL IMPACTFUL AMOUNTS OF SNOW ARE EXPECTED ACROSS
INYO COUNTY AND THE SOUTHERN GREAT BASIN. SNOW LEVELS MAY DIP AS LOW
AS 3500 FEET IN SOME LOCATIONS BY MONDAY MORNING.

AZZ001-NVZ018-019-220630-
/O.UPG.KVEF.WS.A.0001.150222T1200Z-150224T0000Z/
/O.NEW.KVEF.WS.W.0001.150222T1200Z-150224T0000Z/
NORTHWEST PLATEAU-SHEEP RANGE-SPRING MOUNTAINS-RED ROCK CANYON-
INCLUDING THE CITIES OF...MT TRUMBULL...THE TOWN OF MT CHARLESTON
225 PM PST SAT FEB 21 2015 /325 PM MST SAT FEB 21 2015/

...WINTER STORM WARNING IN EFFECT FROM 4 AM PST /5 AM MST/ SUNDAY
TO 4 PM PST /5 PM MST/ MONDAY ABOVE 5000 FEET...

THE NATIONAL WEATHER SERVICE IN LAS VEGAS HAS ISSUED A WINTER
STORM WARNING ABOVE 5000 FEET...WHICH IS IN EFFECT FROM 4 AM PST /5
AM MST/ SUNDAY TO 4 PM PST /5 PM MST/ MONDAY FOR THE SPRING
MOUNTAINS...SHEEP RANGE...AND NORTHWEST PLATEAU OF ARIZONA. THIS
REPLACES THE WINTER STORM WATCH WHICH HAD BEEN IN EFFECT.

* TIMING: OCCASIONAL SNOW WILL BEGIN SUNDAY MORNING AND LAST
  THROUGH MONDAY AFTERNOON. HEAVIEST SNOWFALL IS EXPECTED SUNDAY
  NIGHT THROUGH MONDAY MORNING.

* SNOW LEVEL: STARTING NEAR 6000 FEET AND FALLING TO 5000 FEET
  SUNDAY EVENING. SNOW LEVELS MAY DROP AS LOW AS 4000 FEET BY MONDAY
  MORNING.

* TOTAL SNOW ACCUMULATIONS: 6 TO 12 INCHES OF SNOW IS EXPECTED ABOVE
  5000 FEET. LESSER ACCUMULATIONS OF 3 TO 5 INCHES WILL BE POSSIBLE
  DOWN TO 4500 FEET LATE SUNDAY NIGHT THROUGH EARLY MONDAY MORNING.

* WINDS: GENERALLY LIGHT IN THE SPRING MOUNTAINS. IN THE NORTHWEST
  PLATEAU AND SHEEP RANGE...EXPECT NORTHEASTERLY WINDS OF 10 TO 15
  MPH WITH GUSTS TO 25 MPH. SOME AREAS OF BLOWING AND DRIFTING SNOW
  ARE POSSIBLE.

* IMPACTS: TRAVEL WILL BE DIFFICULT IF NOT IMPOSSIBLE ON SOME AREA
  ROADWAYS AND THROUGH MOUNTAIN PASSES. SNOW PACKED AND ICY
  CONDITIONS WILL IMPACT TRAVEL ON ROADWAYS LEADING TO MOUNT
  CHARLESTON...THE SPRING MOUNTAINS...AND THE SHEEP RANGE.
  ACCUMULATING SNOW WILL IMPACT HIGHWAY 389 IN NORTHWEST ARIZONA
  BETWEEN COLORADO CITY AND FREDONIA.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING.  ONLY TRAVEL IN AN EMERGENCY
SINCE SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL
DANGEROUS. IF YOU MUST TRAVEL...KEEP AN EXTRA
FLASHLIGHT...FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN
EMERGENCY.

&&

$$

CAZ519-521-522-NVZ014-015-220630-
/O.UPG.KVEF.WS.A.0001.150222T1200Z-150224T0000Z/
/O.NEW.KVEF.WW.Y.0001.150222T1200Z-150224T0000Z/
EASTERN SIERRA SLOPES-WHITE MOUNTAINS OF INYO COUNTY-
DEATH VALLEY NATIONAL PARK-ESMERALDA AND CENTRAL NYE COUNTY-
LINCOLN COUNTY-
INCLUDING THE CITIES OF...ASPENDELL...WHITNEY PORTAL...
GOLDFIELD...PIOCHE
225 PM PST SAT FEB 21 2015

...WINTER WEATHER ADVISORY IN EFFECT FROM 4 AM SUNDAY TO 4 PM PST
MONDAY ABOVE 5000 FEET...

THE NATIONAL WEATHER SERVICE IN LAS VEGAS HAS ISSUED A WINTER
WEATHER ADVISORY ABOVE 5000 FEET FOR INYO COUNTY IN CALIFORNIA 
AND...ESMERALDA...NYE...AND LINCOLN COUNTIES IN NEVADA....WHICH IS
IN EFFECT FROM 4 AM SUNDAY TO 4 PM PST MONDAY. THIS REPLACES THE
WINTER STORM WATCH WHICH HAD BEEN IN EFFECT.


* TIMING: OCCASIONAL RAIN AND MOUNTAIN SNOW WILL DEVELOP SUNDAY
  MORNING AND INCREASE THROUGH THE AFTERNOON. PRECIPITATION WILL
  DIMINISH LATE MONDAY.

* SNOW LEVEL: STARTING NEAR 6000 FEET AND FALLING TO NEAR 5000 FEET
  BY SUNDAY EVENING. SNOW LEVELS MAY DROP AS LOW AS 3500 FEET MONDAY
  MORNING. 

* TOTAL SNOW ACCUMULATIONS: 3 TO 5 INCHES ABOVE 5000 FEET. GREATEST
  ACCUMULATIONS ARE EXPECTED IN LINCOLN COUNTY AND THE SIERRA WITH
  LIGHTER ACCUMULATIONS OF 1 TO 3 INCHES IN NYE AND ESMERALDA
  COUNTIES. 

* WINDS: NORTHEASTERLY 10 TO 15 MPH WITH GUSTS TO 25 MPH. SOME 
  AREAS OF BLOWING AND DRIFTING SNOW ARE POSSIBLE.

* IMPACTS: TRAVEL WILL BE DIFFICULT ON SOME AREA ROADWAYS AND
  THROUGH MOUNTAIN PASSES. SNOW PACKED AND ICY CONDITIONS COULD
  IMPACT TRAVEL ON HIGHWAYS 93 AND 95 IN SOUTHERN NEVADA...AND
  HIGHWAY 190 NEAR TOWNES PASS IN INYO COUNTY AS WELL AS ROADWAYS IN
  THE EASTERN SIERRA.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL
CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED
ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING.

&&

$$
6 follow-up statements
911 
WWUS45 KVEF 220626
WSWVEF

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE LAS VEGAS NV
1026 PM PST SAT FEB 21 2015

...WINTER WEATHER IS ON THE WAY WITH WIDESPREAD SNOW EXPECTED
ABOVE 5000 FEET...

.A STRONG AND COLD STORM SYSTEM WILL TAKE SHAPE ON SUNDAY WITH
WIDESPREAD RAIN AND MOUNTAIN SNOW EXPECTED. LATEST TRENDS TAKE
THIS SYSTEM A BIT FURTHER SOUTH THAN PREVIOUS FORECASTS WITH THE
HEAVIEST SNOWFALL IN THE MOUNTAINS OF CLARK AND MOHAVE COUNTIES.
LIGHTER...BUT STILL IMPACTFUL AMOUNTS OF SNOW ARE EXPECTED ACROSS
INYO COUNTY AND THE SOUTHERN GREAT BASIN. SNOW LEVELS MAY DIP AS
LOW AS 3500 FEET IN SOME LOCATIONS BY MONDAY MORNING.

AZZ001-NVZ018-019-221430-
/O.CON.KVEF.WS.W.0001.150222T1200Z-150224T0000Z/
NORTHWEST PLATEAU-SHEEP RANGE-SPRING MOUNTAINS-RED ROCK CANYON-
INCLUDING THE CITIES OF...MT TRUMBULL...THE TOWN OF MT CHARLESTON
1026 PM PST SAT FEB 21 2015 /1126 PM MST SAT FEB 21 2015/

...WINTER STORM WARNING REMAINS IN EFFECT FROM 4 AM PST /5 AM
MST/ SUNDAY TO 4 PM PST /5 PM MST/ MONDAY ABOVE 5000 FEET...

A WINTER STORM WARNING ABOVE 5000 FEET REMAINS IN EFFECT FROM
4 AM PST /5 AM MST/ SUNDAY TO 4 PM PST /5 PM MST/ MONDAY FOR THE
SPRING MOUNTAINS...SHEEP RANGE AND NORTHERN MOHAVE COUNTY.

* TIMING: OCCASIONAL SNOW WILL BEGIN SUNDAY MORNING AND LAST 
  THROUGH MONDAY AFTERNOON. HEAVIEST SNOWFALL IS EXPECTED SUNDAY 
  NIGHT THROUGH MONDAY MORNING. 

* SNOW LEVEL: STARTING NEAR 6000 FEET AND FALLING TO 5000 FEET 
  SUNDAY EVENING. SNOW LEVELS MAY DROP AS LOW AS 4000 FEET BY
  MONDAY MORNING. 

* TOTAL SNOW ACCUMULATIONS: 6 TO 12 INCHES OF SNOW IS EXPECTED
  ABOVE 5000 FEET. LESSER ACCUMULATIONS OF 3 TO 5 INCHES WILL 
  BE POSSIBLE DOWN TO 4500 FEET LATE SUNDAY NIGHT THROUGH 
  EARLY MONDAY MORNING.

* WINDS: GENERALLY LIGHT IN THE SPRING MOUNTAINS. IN THE
  NORTHWEST PLATEAU AND SHEEP RANGE...EXPECT NORTHEASTERLY 
  WINDS OF 10 TO 15 MPH WITH GUSTS TO 25 MPH. SOME AREAS OF 
  BLOWING AND DRIFTING SNOW ARE POSSIBLE. 

* IMPACTS: TRAVEL WILL BE DIFFICULT IF NOT IMPOSSIBLE ON SOME
  AREA ROADWAYS AND THROUGH MOUNTAIN PASSES. SNOW PACKED AND 
  ICY CONDITIONS WILL IMPACT TRAVEL ON ROADWAYS LEADING TO 
  MOUNT CHARLESTON...THE SPRING MOUNTAINS...AND THE SHEEP 
  RANGE. ACCUMULATING SNOW WILL IMPACT HIGHWAY 389 IN 
  NORTHWEST ARIZONA BETWEEN COLORADO CITY AND FREDONIA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING.  ONLY TRAVEL IN AN
EMERGENCY SINCE SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT
WILL MAKE TRAVEL DANGEROUS. IF YOU MUST TRAVEL...KEEP AN EXTRA
FLASHLIGHT...FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN
EMERGENCY.

&&

$$

CAZ519-521-522-NVZ014-015-221430-
/O.CON.KVEF.WW.Y.0001.150222T1200Z-150224T0000Z/
EASTERN SIERRA SLOPES-WHITE MOUNTAINS OF INYO COUNTY-
DEATH VALLEY NATIONAL PARK-ESMERALDA AND CENTRAL NYE COUNTY-
LINCOLN COUNTY-
INCLUDING THE CITIES OF...ASPENDELL...WHITNEY PORTAL...
GOLDFIELD...PIOCHE
1026 PM PST SAT FEB 21 2015

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 4 AM SUNDAY TO
4 PM PST MONDAY ABOVE 5000 FEET...

A WINTER WEATHER ADVISORY ABOVE 5000 FEET REMAINS IN EFFECT FROM
4 AM SUNDAY TO 4 PM PST MONDAY FOR THE MOUNTAINS OF INYO COUNTY AND
SOUTH CENTRAL NEVADA.

* TIMING: OCCASIONAL RAIN AND MOUNTAIN SNOW WILL DEVELOP SUNDAY 
  MORNING AND INCREASE THROUGH THE AFTERNOON. PRECIPITATION WILL 
  DIMINISH LATE MONDAY. 

* SNOW LEVEL: STARTING NEAR 6000 FEET AND FALLING TO NEAR 5000 
  FEET BY SUNDAY EVENING. SNOW LEVELS MAY DROP AS LOW AS 3500 
  FEET MONDAY MORNING. 

* TOTAL SNOW ACCUMULATIONS: 3 TO 5 INCHES ABOVE 5000 FEET.
  GREATEST ACCUMULATIONS ARE EXPECTED IN LINCOLN COUNTY AND 
  THE SIERRA WITH LIGHTER ACCUMULATIONS OF 1 TO 3 INCHES IN 
  NYE AND ESMERALDA COUNTIES. 

* WINDS: NORTHEASTERLY 10 TO 15 MPH WITH GUSTS TO 25 MPH. SOME 
  AREAS OF BLOWING AND DRIFTING SNOW ARE POSSIBLE.

* IMPACTS: TRAVEL WILL BE DIFFICULT ON SOME AREA ROADWAYS AND 
  THROUGH MOUNTAIN PASSES. SNOW PACKED AND ICY CONDITIONS 
  COULD IMPACT TRAVEL ON HIGHWAYS 93 AND 95 IN SOUTHERN 
  NEVADA...AND HIGHWAY 190 NEAR TOWNES PASS IN INYO COUNTY AS 
  WELL AS ROADWAYSIN THE EASTERN SIERRA. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW
COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE
DRIVING.

&&

$$
742 
WWUS45 KVEF 221307
WSWVEF

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE LAS VEGAS NV
507 AM PST SUN FEB 22 2015

.A STRONG AND COLD STORM SYSTEM WILL CONTINUE TO DEVELOP TODAY WITH
WIDESPREAD RAIN AND MOUNTAIN SNOW EXPECTED. THE HEAVIEST SNOWFALL IS
IN THE MOUNTAINS OF CLARK AND MOHAVE COUNTIES. LIGHTER...BUT STILL
IMPACTFUL AMOUNTS OF SNOW ARE EXPECTED ACROSS INYO COUNTY AND THE
SOUTHERN GREAT BASIN. SNOW LEVELS MAY DIP AS LOW AS 3500 FEET IN
SOME LOCATIONS BY MONDAY MORNING.

AZZ001-NVZ018-019-222300-
/O.CON.KVEF.WS.W.0001.000000T0000Z-150224T0000Z/
NORTHWEST PLATEAU-SHEEP RANGE-SPRING MOUNTAINS-RED ROCK CANYON-
INCLUDING THE CITIES OF...MT TRUMBULL...THE TOWN OF MT CHARLESTON
507 AM PST SUN FEB 22 2015 /607 AM MST SUN FEB 22 2015/

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 PM PST /5 PM
MST/ MONDAY ABOVE 5000 FEET...

A WINTER STORM WARNING ABOVE 5000 FEET REMAINS IN EFFECT UNTIL
4 PM PST /5 PM MST/ MONDAY. 

* TIMING: SNOW WILL DEVELOP THIS MORNING AND LAST THROUGH MONDAY
  AFTERNOON. THE HEAVIEST SNOWFALL IS EXPECTED SUNDAY NIGHT THROUGH
  MONDAY MORNING.

* SNOW LEVEL: STARTING NEAR 5500 FEET AND FALLING TO 4500 FEET
  SUNDAY EVENING. SNOW LEVELS MAY DROP AS LOW AS 4000 FEET BY MONDAY
  MORNING.

* TOTAL SNOW ACCUMULATIONS: 6 TO 12 INCHES OF SNOW IS EXPECTED 
  ABOVE 5000 FEET. LESSER ACCUMULATIONS OF 3 TO 5 INCHES WILL 
  BE POSSIBLE DOWN TO 4500 FEET LATE SUNDAY NIGHT THROUGH 
  EARLY MONDAY MORNING.

* WINDS: EXPECT NORTHEASTERLY WINDS OF 10 TO 15 MPH WITH GUSTS TO
  25 MPH. SOME AREAS OF BLOWING AND DRIFTING SNOW ARE POSSIBLE.

* IMPACTS: TRAVEL WILL BE DIFFICULT IF NOT IMPOSSIBLE ON SOME 
  AREA ROADWAYS AND THROUGH MOUNTAIN PASSES. SNOW PACKED AND 
  ICY CONDITIONS WILL IMPACT TRAVEL ON ROADWAYS LEADING TO 
  MOUNT CHARLESTON...THE SPRING MOUNTAINS...AND THE SHEEP 
  RANGE. ACCUMULATING SNOW WILL IMPACT HIGHWAY 389 IN 
  NORTHWEST ARIZONA BETWEEN COLORADO CITY AND FREDONIA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING.  ONLY TRAVEL IN AN
EMERGENCY SINCE SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT
WILL MAKE TRAVEL DANGEROUS. IF YOU MUST TRAVEL...KEEP AN EXTRA
FLASHLIGHT...FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN
EMERGENCY.

&&

$$

CAZ519-521-522-NVZ014-015-222300-
/O.CON.KVEF.WW.Y.0001.000000T0000Z-150224T0000Z/
EASTERN SIERRA SLOPES-WHITE MOUNTAINS OF INYO COUNTY-
DEATH VALLEY NATIONAL PARK-ESMERALDA AND CENTRAL NYE COUNTY-
LINCOLN COUNTY-
INCLUDING THE CITIES OF...ASPENDELL...WHITNEY PORTAL...
GOLDFIELD...PIOCHE
507 AM PST SUN FEB 22 2015

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST
MONDAY ABOVE 5000 FEET...

A WINTER WEATHER ADVISORY ABOVE 5000 FEET REMAINS IN EFFECT UNTIL
4 PM PST MONDAY. 

* TIMING: PERIODS OF SNOW WILL CONTINUE THIS MORNING AND INCREASE
  THROUGH THE AFTERNOON. PRECIPITATION WILL DIMINISH LATE MONDAY.

* SNOW LEVEL: BETWEEN 4000 AND 4500 FEET. SNOW LEVELS MAY DROP AS
  LOW AS 3500 FEET MONDAY MORNING.

* TOTAL SNOW ACCUMULATIONS: 3 TO 5 INCHES ABOVE 5000 FEET. GREATEST
  ACCUMULATIONS ARE EXPECTED IN LINCOLN COUNTY AND THE SIERRA WITH
  LIGHTER ACCUMULATIONS OF 1 TO 3 INCHES IN ESMERALDA COUNTIES.

* WINDS: NORTHEASTERLY 15 TO 20 MPH WITH GUSTS TO 30 MPH. SOME
  AREAS OF BLOWING AND DRIFTING SNOW ARE POSSIBLE.

* IMPACTS: TRAVEL WILL BE DIFFICULT ON SOME AREA ROADWAYS AND 
  THROUGH MOUNTAIN PASSES. SNOW PACKED AND ICY CONDITIONS 
  COULD IMPACT TRAVEL ON HIGHWAYS 93 AND 95 IN SOUTHERN 
  NEVADA...AND HIGHWAY 190 NEAR TOWNES PASS IN INYO COUNTY AS 
  WELL AS ROADWAYS IN THE EASTERN SIERRA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW
COVERED ROADS AND LIMITED VISIBILITY...AND USE CAUTION WHILE
DRIVING.

&&

$$
687 
WWUS45 KVEF 222238
WSWVEF

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE LAS VEGAS NV
238 PM PST SUN FEB 22 2015

.A STRONG AND COLD STORM SYSTEM WILL BRING WIDESPREAD RAIN AND
MOUNTAIN SNOW TONIGHT AND MONDAY. THE HEAVIEST SNOWFALL IS EXPECTED IN
THE MOUNTAINS OF CLARK AND MOHAVE COUNTIES. LIGHTER...BUT STILL
IMPACTFUL AMOUNTS OF SNOW ARE EXPECTED ACROSS INYO COUNTY AND THE
SOUTHERN GREAT BASIN. SNOW LEVELS MAY DIP AS LOW AS 3500 FEET IN
SOME LOCATIONS BY MONDAY MORNING.

AZZ001-NVZ018-019-231200-
/O.CON.KVEF.WS.W.0001.000000T0000Z-150224T0000Z/
NORTHWEST PLATEAU-SHEEP RANGE-SPRING MOUNTAINS-RED ROCK CANYON-
INCLUDING THE CITIES OF...MT TRUMBULL...THE TOWN OF MT CHARLESTON
238 PM PST SUN FEB 22 2015 /338 PM MST SUN FEB 22 2015/

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 PM PST /5 PM
MST/ MONDAY ABOVE 5000 FEET...

A WINTER STORM WARNING ABOVE 5000 FEET REMAINS IN EFFECT UNTIL
4 PM PST /5 PM MST/ MONDAY. 

* TIMING: SNOW WILL DEVELOP THIS MORNING AND LAST THROUGH MONDAY 
  AFTERNOON. THE HEAVIEST SNOWFALL IS EXPECTED SUNDAY NIGHT 
  THROUGH MONDAY MORNING. 

* SNOW LEVEL: STARTING NEAR 5500 FEET AND FALLING TO 4500 FEET 
  SUNDAY EVENING. SNOW LEVELS MAY DROP AS LOW AS 4000 FEET BY
  MONDAY MORNING. 

* TOTAL SNOW ACCUMULATIONS: 6 TO 12 INCHES OF SNOW IS EXPECTED 
  ABOVE 5000 FEET. LESSER ACCUMULATIONS OF 3 TO 5 INCHES WILL 
  BE POSSIBLE DOWN TO 4500 FEET LATE SUNDAY NIGHT THROUGH 
  EARLY MONDAY MORNING.

* WINDS: EXPECT NORTHEASTERLY WINDS OF 10 TO 15 MPH WITH GUSTS 
  TO 25 MPH. SOME AREAS OF BLOWING AND DRIFTING SNOW ARE 
  POSSIBLE. 

* IMPACTS: TRAVEL WILL BE DIFFICULT IF NOT IMPOSSIBLE ON SOME AREA
  ROADWAYS AND THROUGH MOUNTAIN PASSES. SNOW PACKED AND ICY
  CONDITIONS WILL IMPACT TRAVEL ON ROADWAYS LEADING TO MOUNT
  CHARLESTON...THE SPRING MOUNTAINS...AND THE SHEEP RANGE.
  ACCUMULATING SNOW WILL IMPACT HIGHWAY 389 IN NORTHWEST ARIZONA
  BETWEEN COLORADO CITY AND FREDONIA. A FEW INCHES OF SNOW ARE
  POSSIBLE ALONG INTERSTATE 15 AT MOUNTAIN PASS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING.  ONLY TRAVEL IN AN
EMERGENCY SINCE SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT
WILL MAKE TRAVEL DANGEROUS. IF YOU MUST TRAVEL...KEEP AN EXTRA
FLASHLIGHT...FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN
EMERGENCY.

&&

$$

CAZ519-521-522-NVZ014-015-231200-
/O.CON.KVEF.WW.Y.0001.000000T0000Z-150224T0000Z/
EASTERN SIERRA SLOPES-WHITE MOUNTAINS OF INYO COUNTY-
DEATH VALLEY NATIONAL PARK-ESMERALDA AND CENTRAL NYE COUNTY-
LINCOLN COUNTY-
INCLUDING THE CITIES OF...ASPENDELL...WHITNEY PORTAL...
GOLDFIELD...PIOCHE
238 PM PST SUN FEB 22 2015

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST
MONDAY ABOVE 5000 FEET...

A WINTER WEATHER ADVISORY ABOVE 5000 FEET REMAINS IN EFFECT UNTIL
4 PM PST MONDAY. 

* TIMING: PERIODS OF SNOW WILL CONTINUE THIS MORNING AND 
  INCREASETHROUGH THE AFTERNOON. PRECIPITATION WILL DIMINISH 
  LATE MONDAY. 

* SNOW LEVEL: BETWEEN 4000 AND 4500 FEET. SNOW LEVELS MAY DROP 
  ASLOW AS 3500 FEET MONDAY MORNING. 

* TOTAL SNOW ACCUMULATIONS: 4 TO 8 INCHES ABOVE 5000 FEET.
  GREATEST ACCUMULATIONS ARE EXPECTED IN EASTERN LINCOLN COUNTY AND 
  THE SIERRA WITH LIGHTER ACCUMULATIONS OF 1 TO 3 INCHES IN 
  ESMERALDA AND NYE COUNTIES.

* WINDS: NORTHEASTERLY 15 TO 20 MPH WITH GUSTS TO 30 MPH. SOME 
  AREAS OF BLOWING AND DRIFTING SNOW ARE POSSIBLE.

* IMPACTS: TRAVEL WILL BE DIFFICULT ON SOME AREA ROADWAYS AND 
  THROUGH MOUNTAIN PASSES. SNOW PACKED AND ICY CONDITIONS 
  COULD IMPACT TRAVEL ON HIGHWAYS 93 AND 95 IN SOUTHERN 
  NEVADA...AND HIGHWAY 190 NEAR TOWNES PASS IN INYO COUNTY AS 
  WELL AS ROADWAYS IN THE EASTERN SIERRA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW
COVERED ROADS AND LIMITED VISIBILITY...AND USE CAUTION WHILE
DRIVING.

&&

$$
116 
WWUS45 KVEF 231018
WSWVEF

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE LAS VEGAS NV
218 AM PST MON FEB 23 2015

.A STRONG AND COLD STORM SYSTEM WILL BRING WIDESPREAD RAIN AND
SNOW TODAY. THE HEAVIEST SNOWFALL IS EXPECTED IN THE MOUNTAINS OF
CLARK AND MOHAVE COUNTIES DURING THE MORNING HOURS. THE LEVEL OF
ACCUMULATING SNOW MAY DIP AS LOW AS 3000 FEET WITH SNOW POSSIBLE
DOWN TO 2500 FEET.

AZZ001-NVZ018-019-231700-
/O.CON.KVEF.WS.W.0001.000000T0000Z-150224T0000Z/
NORTHWEST PLATEAU-SHEEP RANGE-SPRING MOUNTAINS-RED ROCK CANYON-
INCLUDING THE CITIES OF...MT TRUMBULL...THE TOWN OF MT CHARLESTON
218 AM PST MON FEB 23 2015 /318 AM MST MON FEB 23 2015/

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 PM PST /5 PM
MST/ THIS AFTERNOON ABOVE 5000 FEET...

A WINTER STORM WARNING ABOVE 5000 FEET REMAINS IN EFFECT UNTIL
4 PM PST /5 PM MST/ THIS AFTERNOON. 

* TIMING: SNOW WILL CONTINUE THIS MORNING AND BECOME MORE SHOWERY
  THIS AFTERNOON. THE HEAVIEST SNOWFALL IS EXPECTED THROUGH 9 AM.

* SNOW LEVEL: ACCUMULATING SNOW MAY DROP AS LOW AS 3000 FEET THIS
  MORNING...WITH WARNING LEVEL ACCUMULATIONS AT 5000 FEET.

* TOTAL SNOW ACCUMULATIONS: 6 TO 12 INCHES OF SNOW IS EXPECTED ABOVE
  5000 FEET. ACCUMULATIONS OF 3 TO 5 INCHES WILL BE POSSIBLE DOWN TO
  4000 FEET. ACCUMULATIONS OF 1 TO 3 INCHES DOWN TO 3500
  FEET...INCLUDING AT RED ROCK CANYON.

* WINDS: EXPECT NORTHEASTERLY WINDS OF 10 TO 15 MPH WITH GUSTS 
  TO 25 MPH. SOME AREAS OF BLOWING AND DRIFTING SNOW ARE 
  POSSIBLE.

* IMPACTS: TRAVEL WILL BE DIFFICULT IF NOT IMPOSSIBLE ON SOME AREA
  ROADWAYS AND THROUGH MOUNTAIN PASSES. EXPECT SIGNIFICANT TRAVELS
  DELAYS ON HIGHWAY 160 ACROSS MOUNTAIN SPRINGS SUMMIT. SNOW PACKED
  AND ICY CONDITIONS WILL IMPACT TRAVEL ON ROADWAYS LEADING TO MOUNT
  CHARLESTON...THE SPRING MOUNTAINS...AND THE SHEEP RANGE.
  ACCUMULATING SNOW WILL IMPACT HIGHWAY 389 IN NORTHWEST ARIZONA
  BETWEEN COLORADO CITY AND FREDONIA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING.  ONLY TRAVEL IN AN
EMERGENCY SINCE SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT
WILL MAKE TRAVEL DANGEROUS. IF YOU MUST TRAVEL...KEEP AN EXTRA
FLASHLIGHT...FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN
EMERGENCY.

&&

$$

CAZ524-NVZ016-017-020-022-231700-
/O.EXB.KVEF.WW.Y.0001.000000T0000Z-150223T1700Z/
EASTERN MOJAVE DESERT-NORTHEAST CLARK COUNTY-
WESTERN CLARK AND SOUTHERN NYE COUNTY-LAS VEGAS VALLEY-
SOUTHERN CLARK COUNTY-
INCLUDING THE CITIES OF...MOUNTAIN PASS...MITCHELL CAVERNS...
BLUE DIAMOND...SEARCHLIGHT
218 AM PST MON FEB 23 2015

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 9 AM PST THIS MORNING
ABOVE 3500 FEET...

THE NATIONAL WEATHER SERVICE IN LAS VEGAS HAS ISSUED A WINTER
WEATHER ADVISORY ABOVE 3500 FEET FOR SNOW...WHICH IS IN EFFECT
UNTIL 9 AM PST THIS MORNING.

* TIMING: PERIODS OF SNOW WILL CONTINUE THE REMAINDER OF THE NIGHT
  AND INTO THE MORNING.

* SNOW LEVEL: ACCUMULATING SNOW LEVELS MAY DROP AS LOW AS 3000 FEET
  THIS MORNING.

* TOTAL SNOW ACCUMULATIONS: 3 TO 6 INCHES ABOVE 3500 FEET. GREATEST
  ACCUMULATIONS ARE EXPECTED IN MOUNTAIN PASS IN CALIFORNIA. LIGHT
  ACCUMULATIONS ARE POSSIBLE BETWEEN 3000 AND 3500 FEET AROUND THE
  HIGHER ELEVATIONS OF THE LAS VEGAS VALLEY. A MIX OF RAIN AND SNOW
  IS POSSIBLE DOWN TO 2500 FEET.

* WINDS: NORTHEASTERLY 10 TO 15 MPH.

* IMPACTS: TRAVEL WILL BE DIFFICULT ON SOME AREA ROADWAYS AND
  THROUGH MOUNTAIN PASSES...PARTICULARLY ALONG INTERSTATE 15 IN THE
  VICINITY OF MOUNTAIN PASS AND HALLORAN SUMMIT. SNOW PACKED AND ICY
  CONDITIONS COULD IMPACT TRAVEL ON HIGHWAYS 93 AND 95 IN SOUTHERN
  NEVADA...PARTICULARLY NEAR INDIAN SPRINGS AND SEARCHLIGHT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW
COVERED ROADS AND LIMITED VISIBILITY...AND USE CAUTION WHILE
DRIVING.

&&

$$

CAZ519-521-522-NVZ014-015-231700-
/O.CON.KVEF.WW.Y.0001.000000T0000Z-150224T0000Z/
EASTERN SIERRA SLOPES-WHITE MOUNTAINS OF INYO COUNTY-
DEATH VALLEY NATIONAL PARK-ESMERALDA AND CENTRAL NYE COUNTY-
LINCOLN COUNTY-
INCLUDING THE CITIES OF...ASPENDELL...WHITNEY PORTAL...
GOLDFIELD...PIOCHE
218 AM PST MON FEB 23 2015

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST THIS
AFTERNOON ABOVE 5000 FEET...

A WINTER WEATHER ADVISORY ABOVE 5000 FEET REMAINS IN EFFECT UNTIL
4 PM PST THIS AFTERNOON. 

* TIMING: PERIODS OF SNOW WILL CONTINUE THIS MORNING AND BECOME MORE
  SHOWERY DURING THE AFTERNOON.

* SNOW LEVEL: ACCUMULATING SNOW LEVELS MAY DROP AS LOW AS 3000 FEET
  THIS MORNING.

* TOTAL SNOW ACCUMULATIONS: 4 TO 8 INCHES ABOVE 5000 FEET. GREATEST
  ACCUMULATIONS ARE EXPECTED IN EASTERN LINCOLN COUNTY AND THE
  EASTERN SIERRA WITH LIGHTER ACCUMULATIONS OF 1 TO 3 INCHES BETWEEN
  3500 FEET AND 5000 FEET.

* WINDS: NORTHEASTERLY 15 TO 20 MPH WITH GUSTS TO 30 MPH. SOME 
  AREAS OF BLOWING AND DRIFTING SNOW ARE POSSIBLE.

* IMPACTS: TRAVEL WILL BE DIFFICULT ON SOME AREA ROADWAYS AND 
  THROUGH MOUNTAIN PASSES. SNOW PACKED AND ICY CONDITIONS 
  COULD IMPACT TRAVEL ON HIGHWAYS 93 AND 95 IN SOUTHERN 
  NEVADA...AND HIGHWAY 190 NEAR TOWNES PASS IN INYO COUNTY AS 
  WELL AS ROADWAYS IN THE EASTERN SIERRA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW
COVERED ROADS AND LIMITED VISIBILITY...AND USE CAUTION WHILE
DRIVING.

&&

$$
342 
WWUS45 KVEF 231659
WSWVEF

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE LAS VEGAS NV
859 AM PST MON FEB 23 2015


.IMPROVING CONDITIONS ARE EXPECTED THROUGH THE REMAINDER OF THE DAY
TODAY AS A STRONG WINTER STORM PUSHES EAST OF THE AREA. SOME
ADDITIONAL SNOW REMAINS POSSIBLE IN MOHAVE COUNTY BUT ELSEWHERE
ADDITIONAL ACCUMULATIONS WILL GENERALLY BE AN INCH OR TWO OR LESS. 

NVZ018-019-231800-
/O.CAN.KVEF.WS.W.0001.000000T0000Z-150224T0000Z/
SHEEP RANGE-SPRING MOUNTAINS-RED ROCK CANYON-
INCLUDING...THE TOWN OF MT CHARLESTON
859 AM PST MON FEB 23 2015

...WINTER STORM WARNING IS CANCELED...

WHILE LIGHT SNOW SHOWERS REMAIN POSSIBLE THROUGH THIS
AFTERNOON...ANY ADDITIONAL SNOW ACCUMULATIONS WILL REMAIN LIGHT. ICY
AND SNOWPACKED ROADWAYS REMAIN POSSIBLE THROUGH THE AFTERNOON. 

$$

CAZ524-NVZ016-017-020-022-231800-
/O.CAN.KVEF.WW.Y.0001.000000T0000Z-150223T1700Z/
EASTERN MOJAVE DESERT-NORTHEAST CLARK COUNTY-
WESTERN CLARK AND SOUTHERN NYE COUNTY-LAS VEGAS VALLEY-
SOUTHERN CLARK COUNTY-
INCLUDING THE CITIES OF...MOUNTAIN PASS...MITCHELL CAVERNS...
BLUE DIAMOND...SEARCHLIGHT
859 AM PST MON FEB 23 2015

...WINTER WEATHER ADVISORY IS CANCELED...

THE NATIONAL WEATHER SERVICE IN LAS VEGAS HAS CANCELED THE
WINTER WEATHER ADVISORY. ANY ADDITIONAL SNOW SHOWERS WILL RESULT IN
LITTLE OR NO SNOW ACCUMULATION. 

$$

CAZ519-521-522-NVZ014-015-231800-
/O.CAN.KVEF.WW.Y.0001.000000T0000Z-150224T0000Z/
EASTERN SIERRA SLOPES-WHITE MOUNTAINS OF INYO COUNTY-
DEATH VALLEY NATIONAL PARK-ESMERALDA AND CENTRAL NYE COUNTY-
LINCOLN COUNTY-
INCLUDING THE CITIES OF...ASPENDELL...WHITNEY PORTAL...
GOLDFIELD...PIOCHE
859 AM PST MON FEB 23 2015

...WINTER WEATHER ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN LAS VEGAS HAS CANCELED THE
WINTER WEATHER ADVISORY. ICY AND SNOWPACKED ROADWAYS REMAIN POSSIBLE
THROUGH THE AFTERNOON.

$$

AZZ001-240000-
/O.CON.KVEF.WS.W.0001.000000T0000Z-150224T0000Z/
NORTHWEST PLATEAU-
INCLUDING THE CITY OF...MT TRUMBULL
959 AM MST MON FEB 23 2015

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON ABOVE 5000 FEET...

A WINTER STORM WARNING ABOVE 5000 FEET REMAINS IN EFFECT UNTIL
5 PM MST THIS AFTERNOON FOR THE NORTHWEST PLATEAU OF NORTHWEST ARIZONA.

* TIMING: SNOWFALL CONTINUES THIS MORNING BUT WILL GRADUALLY TAPER
  OFF THIS AFTERNOON.

* SNOW LEVEL: ABOVE 5000 FEET.

* SNOW ACCUMULATIONS: ADDITIONAL ACCUMULATIONS OF 1 TO 3 INCHES
  REMAIN POSSIBLE 

* WINDS: EXPECT NORTHEASTERLY WINDS OF 10 TO 15 MPH WITH GUSTS 
  TO 25 MPH. SOME AREAS OF BLOWING AND DRIFTING SNOW ARE 
  POSSIBLE.

* IMPACTS: TRAVEL WILL BE DIFFICULT IF NOT IMPOSSIBLE ON SOME AREA
  ROADWAYS AND THROUGH MOUNTAIN PASSES. ACCUMULATING SNOW WILL
  IMPACT HIGHWAY 389 IN NORTHWEST ARIZONA BETWEEN COLORADO CITY AND
  FREDONIA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING.  ONLY TRAVEL IN AN
EMERGENCY SINCE SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT
WILL MAKE TRAVEL DANGEROUS. IF YOU MUST TRAVEL...KEEP AN EXTRA
FLASHLIGHT...FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN
EMERGENCY.

&&

$$
075 
WWUS45 KVEF 232338
WSWVEF

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE LAS VEGAS NV
338 PM PST MON FEB 23 2015

AZZ001-240045-
/O.EXP.KVEF.WS.W.0001.000000T0000Z-150224T0000Z/
NORTHWEST PLATEAU-
INCLUDING THE CITY OF...MT TRUMBULL
438 PM MST MON FEB 23 2015

...WINTER STORM WARNING WILL EXPIRE AT 5 PM MST THIS AFTERNOON
ABOVE 5000 FEET...

THE WINTER STORM WARNING FOR THE NORTHWEST PLATEAU OF MOHAVE COUNTY ABOVE
5000 FEET WILL EXPIRE AT 5 PM MST THIS AFTERNOON. SOME SCATTERED
LIGHT SNOW SHOWERS REMAIN POSSIBLE OVERNIGHT WITH LITTLE ADDITIONAL
ACCUMULATION EXPECTED. 



$$

What forecasters said that day

The local office's own words before this winter storm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Las Vegas, NV wrote its last area forecast discussion before this winter storm warning went out at Feb 21, 8:05 AM PST, 6 hours 20 minutes earlier.

Area forecast discussion, Feb 21, 8:05 AM PST, 6 hours 20 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LAS VEGAS NV
805 AM PST SAT FEB 21 2015

.SYNOPSIS...ANOTHER MILD DAY ACROSS THE AREA TODAY BEFORE A STORM
MOVING IN FROM THE NORTH BRINGS COOLER...UNSETTLED WEATHER TO THE
REGION FOR SUNDAY AND MONDAY. THE STORM WILL BRING INCREASING CLOUDS
ALONG WITH A CHANCE FOR RAIN AND MOUNTAIN SNOW AND MUCH COOLER
TEMPERATURES. IMPROVING CONDITIONS ARE EXPECTED TUESDAY THROUGH
FRIDAY WITH SEASONAL TEMPERATURES.
&&

.UPDATE...ENJOY THE MILD AND DRY CONDITIONS WHILE THEY LAST TODAY AS
WE RETURN TO MORE TYPICAL FEBRUARY CONDITIONS BY TOMORROW WITH MUCH
COOLER TEMPERATURES AND CHANCES FOR PRECIPITATION. AN EARLY PEAK AT
THIS MORNINGS 12Z MODEL GUIDANCE CONTINUES TO SHIFT THE BEST
COMBINATION OF MOISTURE AND DYNAMICS FURTHER SOUTH AND FINE TUNING
THE FORECAST FOR SUNDAY AND MONDAY WILL BE THE PRIMARY FOCUS OF THIS
AFTERNOONS PACKAGE.

IN THE MEANTIME...I UPDATED TODAYS GRIDS TO REDUCE CLOUD COVER AS
THIS MORNINGS VISIBLE IMAGERY IS MOSTLY CLEAR FOR THE VAST MAJORITY
OF THE REGION. OTHERWISE THE FORECAST IS IN GOOD SHAPE.

-OUTLER-

&&

.SHORT TERM...TODAY THROUGH MONDAY NIGHT.

500 MB HEIGHT LINES ARE BEGINNING TO FOLD AS ENERGY DROPS OUT OF
BRITISH COLUMBIA INTO THE PACIFIC NORTHWEST. THIS IS THE FIRST SIGN
OF A WINTER STORM SYSTEM THAT IS SET TO IMPACT THE AREA SUNDAY AND
MONDAY. THERE IS GOOD MODEL AGREEMENT BRINGING THE TROUGH TO
NORTHERN NEVADA SUNDAY MORNING THEN FURTHER DEVELOPING AND
STRENGTHENING THE SYSTEM DURING THE DAY...EVENTUALLY FORMING A BROAD
CLOSED LOW OVER THE SOUTHWEST SUNDAY NIGHT AND MONDAY. THE SYSTEM IS
FORECAST TO BEGIN MOVING EAST MONDAY NIGHT WITH SHOWER ACTIVITY
DIMINISHING.

ALTHOUGH WINDS WILL BE GUSTY AT TIMES, THE PRIMARY CONCERN WITH THIS
SYSTEM WILL BE PRECIPITATION...ESPECIALLY THE POTENTIAL FOR
SIGNIFICANT SNOWFALL IN MANY MOUNTAIN REGIONS ACROSS THE NORTHERN
HALF OF THE FORECAST AREA AND POSSIBLE ACCUMULATING SNOW ON SOME
NORTHERN ZONE HIGHWAYS. WITH A MORE WESTERLY AND SOUTHERLY TRACK,
MODELS ARE NOW SHOWING DECENT PRECIP AMOUNTS OVER THE MOUNTAINS OF
INYO, CLARK AND NORTHERN MOHAVE COUNTIES IN ADDITION TO AREAS
ALREADY COVERED BY A WINTER STORM WATCH. WILL INCLUDE THE MOUNTAINS
OF THESE COUNTIES IN THE WINTER STORM WATCH. SNOW WISE...STILL
LOOKING AT THE POTENTIAL FOR 6-12 INCHES OF SNOW IN THE WATCH AREA
WITH .25 TO .5 INCH OF RAIN IN THE LOWER ELEVATIONS. FURTHER SOUTH,
LESS THAN A .25 INCH IS EXPECTED SOUTH OF INTERSTATE 40 BASED ON THE
LATEST MODEL QPF FORECASTS. THE SNOW LEVEL WILL GENERALLY START OUT
AROUND 6000 FEET LATE TONIGHT INTO EARLY SUNDAY THEN LOWER TO 5000
FEET DURING THE DAY SUNDAY. SNOW LEVELS OF 3000-3500 FEET ARE
POSSIBLE BY EARLY MONDAY MORNING AS THE COLDEST AIR ARRIVES. THE
BEST CHANCE FOR PRECIPITATION IN THE LAS VEGAS VALLEY IS SUNDAY
NIGHT INTO EARLY MONDAY MORNING.

ANOTHER ASPECT OF THIS SYSTEM IS THE COLD AIR IT BRINGS WITH IT.
AFTER AN EXTENDED PERIOD OF ABOVE NORMAL TEMPERATURES DATING BACK TO
THE FIRST HALF OF JANUARY, HIGHS ARE EXPECTED TO BE 5-10 DEGREES
BELOW NORMAL BY MONDAY. THIS WOULD MEAN DAYTIME TEMPERATURES THAT
END UP 15-25 DEGREES COLDER THAN THE PAST FEW DAYS.

.LONG TERM...

THE STORM SYSTEM AFFECTING THE AREA EARLY IN THE WEEK WILL BEGIN TO
EXIT THE AREA ON TUESDAY AS THE AREA RETURNS TO A STEADY NORTHWEST
FLOW IN THE UPPER LEVEL. THE WEATHER THROUGH THE WEEK APPEARS RATHER
BENIGN. ALTHOUGH COMPUTER MODEL GUIDANCE INDICATES SHORT WAVE ENERGY
MOVING ALONG IN THE NORTHWEST FLOW. THE AREA IS EXPECTED TO REMAIN
DRY THROUGH THIS STRETCH AS MOISTURE WILL BE LIMITED.

INTERESTINGLY THE EUROPEAN MODEL IS INDICATING ANOTHER UPPER LEVEL
LOW PRESSURE SYSTEM TO DEEPEN OVER THE WESTERN U.S. IN FACT..IT IS
QUITE SIMILAR TO THE ONE THAT WILL AFFECT THE AREA THIS WEEKEND. AT
THIS POINT THE GFS HAS NO SUCH LOW PRESSURE FORMING. THUS IT APPEARS
THE MODELS SHOW SOME DISAGREEMENT ON WHETHER THIS STORM WILL OCCUR
AT ALL. NONETHELESS IT BEARS WATCHING AS WE MAY YET SEE ANOTHER
UNSETTLED WEEKEND.
&&

.AVIATION...FOR MCCARRAN...NO OPERATIONALLY SIGNIFICANT WEATHER IS
EXPECTED UNTIL SUNDAY. WINDS WILL REMAIN LIGHT...WITH THE VALLEY
SANDWICHED BETWEEN NORTHEASTERLY WINDS TO THE NORTH AND
WEST/SOUTHWEST WINDS TO THE SOUTH BY SUNDAY MORNING. CHANCES FOR
RAIN AND MOUNTAIN SNOW INCREASE ON SUNDAY AFTERNOON WITH INCREASING
CONFIDENCE IN LOWERING CIGS..POSSIBLY BELOW 5KFT BY SUNDAY NIGHT.

FOR THE REST OF SOUTHERN NEVADA...NORTHWEST ARIZONA...AND SOUTHEAST
CALIFORNIA...GENERALLY LIGHT NORTHERLY WINDS EXPECTED ACROSS NEVADA
SATURDAY WITH LIGHT AND VARIABLE WINDS ELSEWHERE. INCREASING CHANCES
FOR RAIN AND MOUNTAIN SNOW ARRIVE SUNDAY ESPECIALLY NORTH OF A
KDAG-KLAS-KAZC LINE. IN ADDITION...GUSTY SOUTHWESTERLY WINDS ARE
LIKELY ACROSS WESTERN SAN BERNARDINO COUNTY. MOUNTAIN OBSCURATIONS
AND PRECIP LIKELY ACROSS THE SOUTHERN GREAT BASIN.
&&

.SPOTTER INFORMATION STATEMENT...SPOTTER ACTIVATION IS NOT EXPECTED
THROUGH TONIGHT.
&&

SHORT TERM...SALMEN
AVIATION...STEELE
LONG TERM....LERICOS

FOR MORE FORECAST INFORMATION...SEE US ON OUR WEBPAGE:

HTTP://WEATHER.GOV/LASVEGAS OR FOLLOW US ON FACEBOOK AND TWITTER

The office that day

Everything else NWS Las Vegas, NV issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Feb 21, 2:25 PM PSTWinter Weather AdvisoryVEFClark, Esmeralda, Lincoln, Nye43 hr

Nearby

Winter Storm Warnings in Nevada, 2015Winter Storm Warnings in Arizona, 2015Every winter storm warning in 2015

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.