Alert archive / Nevada / Winter Storm Warnings in 2012

Winter Storm Warning 3, NWS Las Vegas, NV

February 13, 2012Esmeralda County, Lincoln County, Nye County, Nevada

NWS Las Vegas, NV issued this winter storm warning at Feb 13, 2012, 4:41 AM PST for Esmeralda County, Lincoln County, Nye County, Nevada. It took effect at Feb 13, 2012, 12:00 PM PST. It was in force for 22 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Feb 13, 2012, 4:41 AM PST (12:41 UTC)
In effect from
Feb 13, 2012, 12:00 PM PST
Expired
Feb 14, 2012, 10:00 AM PST
In force
22 hr
Issued by
NWS Las Vegas, NV

Counties Esmeralda County, NV, Lincoln County, NV, Nye County, NV

The nearest sounding before it

Las Vegas, NV (KVEF), launched 12:00Z, 0.7 hours before the alert went out and 175 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 2012-02-13Temperature 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 2012-02-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 14 square meters per square second.1939587897Sfc1 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
2086 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
14 m²/s²
0-3 km storm-relative helicity
90 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.

008 
WWUS45 KVEF 131241
WSWVEF

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE LAS VEGAS NV
441 AM PST MON FEB 13 2012

.A WINTER STORM WILL MOVE INTO THE AREA TODAY THROUGH TUESDAY
BRINGING MODERATE TO HEAVY SNOW TO THE HIGHER ELEVATIONS OF
SOUTHERN NEVADA AND THE ARIZONA PLATEAU.

NVZ015-131945-
/O.UPG.KVEF.WS.A.0005.120213T1800Z-120215T0000Z/
/O.NEW.KVEF.WS.W.0003.120213T2000Z-120214T1800Z/
LINCOLN COUNTY-
INCLUDING THE CITIES OF...CALIENTE...PIOCHE...PANACA...RACHEL
441 AM PST MON FEB 13 2012

...WINTER STORM WARNING IN EFFECT FROM NOON TODAY TO 10 AM PST
TUESDAY ABOVE 4500 FEET...

THE NATIONAL WEATHER SERVICE IN LAS VEGAS HAS ISSUED A WINTER
STORM WARNING FOR HEAVY SNOW FOR ELEVATIONS ABOVE 4500 FEET IN
LINCOLN COUNTY...WHICH IS IN EFFECT FROM NOON TODAY TO 10 AM PST
TUESDAY. THIS WARNING REPLACES THE WINTER STORM WATCH.

* TIMING: SNOW WILL BEGIN LATE THIS MORNING AND LAST THROUGH
  TUESDAY MORNING.

* SNOW LEVEL: AROUND 5500 FEET TODAY LOWERING TO AROUND 4500 FEET
  LATE TONIGHT INTO EARLY TUESDAY.

* TOTAL SNOW ACCUMULATIONS: 8 TO 12 INCHES WILL BE POSSIBLE 
  FROM 4500 TO 6000 FEET WITH 12 TO 16 INCHES POSSIBLE ABOVE 
  6000 FEET.

* WINDS: SOUTH 15 TO 25 MPH WITH GUSTS TO 35 MPH THIS AFTERNOON
  DECREASING TO 10 TO 15 MPH TONIGHT.

* IMPACTS: DRIVERS PLANNING TO TRAVEL ON ROADWAYS IN LINCOLN
  COUNTY SHOULD BE PREPARED FOR WINTER DRIVING CONDITIONS
  INCLUDING THE POTENTIAL FOR LOW VISIBILITIES AND SNOW COVERED
  ROADS THAT COULD MAKE TRAVEL DIFFICULT.

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.

&&

$$

NVZ014-131945-
/O.UPG.KVEF.WS.A.0005.120213T1800Z-120215T0000Z/
/O.NEW.KVEF.WS.W.0003.120213T2000Z-120214T1400Z/
ESMERALDA AND CENTRAL NYE COUNTY-
INCLUDING THE CITIES OF...GOLDFIELD...SILVER PEAK...DYER
441 AM PST MON FEB 13 2012

...WINTER STORM WARNING IN EFFECT FROM NOON TODAY TO 6 AM PST
TUESDAY ABOVE 4500 FEET...

THE NATIONAL WEATHER SERVICE IN LAS VEGAS HAS ISSUED A WINTER
STORM WARNING FOR ELEVATIONS ABOVE 4500 FEET IN ESMERALDA AND
CENTRAL NYE COUNTIES FOR HEAVY SNOW...WHICH IS IN EFFECT FROM
NOON TODAY TO 6 AM PST TUESDAY. THIS WARNING REPLACES THE WINTER
STORM WATCH.

* TIMING: SNOW IS EXPECTED TO BEGIN IN THE HIGHER ELEVATIONS
  DURING THE LATE MORNING AND LAST THROUGH EARLY TUESDAY MORNING.

* SNOW LEVEL: BEGINNING AROUND 5500 FEET TODAY THEN LOWERING TO
  BETWEEN 4000 AND 4500 FEET LATE TONIGHT AND EARLY TUESDAY.

* TOTAL SNOW ACCUMULATIONS: 6 TO 8 INCHES WILL BE POSSIBLE FROM
  4500 TO 6000 FEET WITH 8 TO 12 INCHES POSSIBLE ABOVE 6000 FEET.

* WINDS: SOUTH 15 TO 25 MPH WITH GUSTS TO 40 MPH THIS AFTERNOON
  BECOMING NORTHWEST 15 TO 25 MPH WITH HIGHER GUSTS TONIGHT.

* IMPACTS: DRIVERS PLANNING TO TRAVEL ON ROADWAYS IN ESMERALDA AND
  CENTRAL NYE COUNTIES SHOULD BE PREPARED FOR WINTER DRIVING
  CONDITIONS INCLUDING THE POTENTIAL FOR LOW VISIBILITIES AND SNOW
  COVERED ROADS THAT COULD MAKE TRAVEL DIFFICULT.

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.

&&

$$

NVZ018-019-131945-
/O.UPG.KVEF.WS.A.0005.120213T1800Z-120215T0000Z/
/O.NEW.KVEF.WW.Y.0003.120213T2200Z-120214T1800Z/
SHEEP RANGE-SPRING MOUNTAINS-RED ROCK CANYON-
INCLUDING...THE TOWN OF MT CHARLESTON
441 AM PST MON FEB 13 2012

...WINTER WEATHER ADVISORY IN EFFECT FROM 2 PM THIS AFTERNOON TO
10 AM PST TUESDAY ABOVE 4500 FEET...

THE NATIONAL WEATHER SERVICE IN LAS VEGAS HAS ISSUED A WINTER
WEATHER ADVISORY FOR ELEVATIONS ABOVE 4500 FEET IN THE SPRING
MOUNTAINS AND SHEEP RANGE FOR SNOW...WHICH IS IN EFFECT FROM 2 PM
THIS AFTERNOON TO 10 AM PST TUESDAY. THIS ADVISORY REPLACES THE
WINTER STORM WATCH.

* TIMING: SNOW IS EXPECTED TO BEGIN BY MID AFTERNOON AND CONTINUE
  INTO TUESDAY MORNING.

* SNOW LEVEL: BEGINNING AROUND 6000 FEET TODAY THEN LOWERING TO
  BETWEEN 3500 AND 4000 FEET LATE TONIGHT AND TUESDAY.

* TOTAL SNOW ACCUMULATIONS: 3 TO 6 INCHES WILL BE POSSIBLE FROM
  4500 TO 7000 FEET WITH 6 TO 10 INCHES POSSIBLE IN THE HIGHEST
  ELEVATIONS.

* WINDS: SOUTH 25 TO 35 MPH WITH GUSTS TO 50 MPH POSSIBLE TODAY
  INTO EARLY THIS EVENING THEN BECOMING LIGHT.

* IMPACTS: DRIVERS ON AREA ROADWAYS...ESPECIALLY HIGHWAYS
  156...157 AND 158 SHOULD BE PREPARED FOR WINTER DRIVING
  CONDITIONS INCLUDING LOW VISIBILITES AND SNOW COVERED ROADS THAT
  WILL MAKE TRAVEL DIFFICULT.

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.

&&

$$

AZZ001-131945-
/O.UPG.KVEF.WS.A.0005.120213T1800Z-120215T0000Z/
/O.NEW.KVEF.WW.Y.0003.120214T0200Z-120214T2000Z/
NORTHWEST PLATEAU-
INCLUDING THE CITIES OF...COLORADO CITY...
PIPE SPRING NATIONAL MONUMENT...MT TRUMBULL
541 AM MST MON FEB 13 2012

...WINTER WEATHER ADVISORY IN EFFECT FROM 7 PM THIS EVENING TO
1 PM MST TUESDAY ABOVE 4500 FEET...

THE NATIONAL WEATHER SERVICE IN LAS VEGAS HAS ISSUED A WINTER
WEATHER ADVISORY FOR ELEVATIONS ABOVE 4500 FEET IN THE NORTHWEST
PLATEAU FOR SNOW...WHICH IS IN EFFECT FROM 7 PM THIS EVENING TO 1
PM MST TUESDAY. THIS ADVISORY REPLACES THE WINTER STORM WATCH.

* TIMING: THIS EVENING THROUGH TUESDAY MORNING.

* SNOW LEVEL: AROUND 6000 FEET TODAY LOWERING TO AROUND 4500 FEET
  TONIGHT AND TUESDAY.

* TOTAL SNOW ACCUMULATIONS: 3 TO 5 INCHES WILL BE POSSIBLE FROM
  4500 TO 6000 FEET WITH 5 TO 7 INCHES POSSIBLE IN THE HIGHEST
  ELEVATIONS.

* WINDS: SOUTH 15 TO 25 MPH IN THE EVENING DECREASING TO 10 TO 15
  MPH.

* IMPACTS: LOW VISIBILITIES AND SNOW COVERED ROADS MAY MAKE 
  TRAVEL DIFFICULT INTO THE HIGHER PLATEAUS OF NORTHERN MOHAVE 
  COUNTY. IN ADDITION...OUTDOOR ENTHUSIASTS SHOULD USE EXTRA 
  CAUTION IF HEADING INTO THE BACK COUNTRY.

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.

&&

$$
4 follow-up statements
191 
WWUS45 KVEF 131947
WSWVEF

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE LAS VEGAS NV
1147 AM PST MON FEB 13 2012

.A WINTER STORM WILL MOVE INTO THE AREA TODAY THROUGH TUESDAY
BRINGING MODERATE TO HEAVY SNOW TO THE HIGHER ELEVATIONS OF
SOUTHERN NEVADA AND THE ARIZONA PLATEAU.

NVZ015-140400-
/O.CON.KVEF.WS.W.0003.120213T2000Z-120214T1800Z/
LINCOLN COUNTY-
INCLUDING THE CITIES OF...CALIENTE...PIOCHE...PANACA...RACHEL
1147 AM PST MON FEB 13 2012

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM PST TUESDAY
ABOVE 4500 FEET...

A WINTER STORM WARNING ABOVE 4500 FEET REMAINS IN EFFECT UNTIL
10 AM PST TUESDAY FOR ELEVATIONS ABOVE 4500 FEET IN LINCOLN
COUNTY FOR HEAVY SNOW. 

* TIMING: SNOW IS EXPECTED TO BEING EARLY AFTERNOON AND LAST
  THROUGH TUESDAY MORNING.

* SNOW LEVEL: AROUND 5500 FEET TODAY LOWERING TO AROUND 4500 
  FEETLATE TONIGHT INTO EARLY TUESDAY. 

* TOTAL SNOW ACCUMULATIONS: 8 TO 12 INCHES WILL BE POSSIBLE 
  FROM 4500 TO 6000 FEET WITH 12 TO 16 INCHES POSSIBLE ABOVE 
  6000 FEET.

* WINDS: SOUTH 15 TO 25 MPH WITH GUSTS TO 35 MPH THIS AFTERNOON 
  DECREASING TO 10 TO 15 MPH TONIGHT.

* IMPACTS: DRIVERS PLANNING TO TRAVEL ON ROADWAYS IN LINCOLN 
  COUNTY SHOULD BE PREPARED FOR WINTER DRIVING CONDITIONS 
  INCLUDING THE POTENTIAL FOR LOW VISIBILITIES AND SNOW 
  COVERED ROADS THAT COULD MAKE TRAVEL DIFFICULT.

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.

&&

$$

NVZ014-140400-
/O.CON.KVEF.WS.W.0003.120213T2000Z-120214T1400Z/
ESMERALDA AND CENTRAL NYE COUNTY-
INCLUDING THE CITIES OF...GOLDFIELD...SILVER PEAK...DYER
1147 AM PST MON FEB 13 2012

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM PST TUESDAY
ABOVE 4500 FEET...

A WINTER STORM WARNING ABOVE 4500 FEET REMAINS IN EFFECT UNTIL
6 AM PST TUESDAY FOR ELEVATIONS ABOVE 4500 FEET IN ESMERALDA AND
CENTRAL NYE COUNTIES FOR HEAVY SNOW. 

* TIMING: SNOW IS EXPECTED TO INCREASE IN INTENSITY DURING THE
  AFTERNOON AND CONTINUE THROUGH EARLY TUESDAY MORNING BEFORE
  TAPERING OFF.

* SNOW LEVEL: BEGINNING AROUND 5500 FEET TODAY THEN LOWERING TO 
  BETWEEN 4000 AND 4500 FEET LATE TONIGHT AND EARLY TUESDAY.

* TOTAL SNOW ACCUMULATIONS: 6 TO 8 INCHES WILL BE POSSIBLE FROM 
  4500 TO 6000 FEET WITH 8 TO 12 INCHES POSSIBLE ABOVE 6000 
  FEET.

* WINDS: SOUTH 15 TO 25 MPH WITH GUSTS TO 40 MPH THIS AFTERNOON 
  BECOMING NORTHWEST 15 TO 25 MPH WITH HIGHER GUSTS TONIGHT.

* IMPACTS: DRIVERS PLANNING TO TRAVEL ON ROADWAYS IN ESMERALDA
  AND CENTRAL NYE COUNTIES SHOULD BE PREPARED FOR WINTER 
  DRIVING CONDITIONS INCLUDING THE POTENTIAL FOR LOW 
  VISIBILITIES AND SNOW COVERED ROADS THAT COULD MAKE TRAVEL 
  DIFFICULT. 

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.

&&

$$

NVZ018-019-140400-
/O.CON.KVEF.WW.Y.0003.120213T2200Z-120214T1800Z/
SHEEP RANGE-SPRING MOUNTAINS-RED ROCK CANYON-
INCLUDING...THE TOWN OF MT CHARLESTON
1147 AM PST MON FEB 13 2012

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST
TUESDAY ABOVE 4500 FEET...

A WINTER WEATHER ADVISORY ABOVE 4500 FEET REMAINS IN EFFECT UNTIL
10 AM PST TUESDAY IN THE SPRING MOUNTAINS AND SHEEP RANGE FOR
SNOW. 

* TIMING: SNOW IS EXPECTED TO BEGIN BY MID AFTERNOON AND 
  CONTINUE INTO TUESDAY MORNING. 

* SNOW LEVEL: BEGINNING AROUND 6000 FEET TODAY THEN LOWERING TO 
  BETWEEN 3500 AND 4000 FEET LATE TONIGHT AND TUESDAY.

* TOTAL SNOW ACCUMULATIONS: 3 TO 6 INCHES WILL BE POSSIBLE FROM 
  4500 TO 7000 FEET WITH 6 TO 10 INCHES POSSIBLE IN THE 
  HIGHEST ELEVATIONS.

* WINDS: SOUTH 25 TO 35 MPH WITH GUSTS TO 50 MPH POSSIBLE TODAY 
  INTO EARLY THIS EVENING THEN BECOMING LIGHT.

* IMPACTS: DRIVERS ON AREA ROADWAYS...ESPECIALLY HIGHWAYS 156...
   157 AND 158 SHOULD BE PREPARED FOR WINTER DRIVING 
  CONDITIONS INCLUDING LOW VISIBILITIES AND SNOW COVERED ROADS 
  THAT WILL MAKE TRAVEL DIFFICULT.

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.

&&

$$

AZZ001-140400-
/O.CON.KVEF.WW.Y.0003.120214T0200Z-120214T2000Z/
NORTHWEST PLATEAU-
INCLUDING THE CITIES OF...COLORADO CITY...
PIPE SPRING NATIONAL MONUMENT...MT TRUMBULL
1247 PM MST MON FEB 13 2012

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 7 PM THIS
EVENING TO 1 PM MST TUESDAY ABOVE 4500 FEET...

A WINTER WEATHER ADVISORY ABOVE 4500 FEET REMAINS IN EFFECT FROM
7 PM THIS EVENING TO 1 PM MST TUESDAY IN THE NORTHWEST PLATEAU FOR
SNOW. 

* TIMING: THIS EVENING THROUGH TUESDAY MORNING.

* SNOW LEVEL: AROUND 6000 FEET TODAY LOWERING TO AROUND 4500 
  FEET TONIGHT AND TUESDAY. 

* TOTAL SNOW ACCUMULATIONS: 3 TO 5 INCHES WILL BE POSSIBLE FROM 
  4500 TO 6000 FEET WITH 5 TO 7 INCHES POSSIBLE IN THE HIGHEST 
  ELEVATIONS.

* WINDS: SOUTH 15 TO 25 MPH IN THE EVENING DECREASING TO 10 TO
  15 MPH. 

* IMPACTS: LOW VISIBILITIES AND SNOW COVERED ROADS MAY MAKE 
  TRAVEL DIFFICULT INTO THE HIGHER PLATEAUS OF NORTHERN MOHAVE 
  COUNTY. IN ADDITION...OUTDOOR ENTHUSIASTS SHOULD USE EXTRA 
  CAUTION IF HEADING INTO THE BACK COUNTRY.

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.

&&

$$
516 
WWUS45 KVEF 140334
WSWVEF

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE LAS VEGAS NV
734 PM PST MON FEB 13 2012

.A WINTER STORM WILL BRING ANOTHER ROUND OF MODERATE TO HEAVY
SNOW TO THE HIGHER ELEVATIONS OF SOUTHERN NEVADA AND THE ARIZONA
PLATEAU TONIGHT INTO TUESDAY MORNING.

NVZ015-141400-
/O.CON.KVEF.WS.W.0003.000000T0000Z-120214T1800Z/
LINCOLN COUNTY-
INCLUDING THE CITIES OF...CALIENTE...PIOCHE...PANACA...RACHEL
734 PM PST MON FEB 13 2012

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM PST TUESDAY
ABOVE 4500 FEET...

A WINTER STORM WARNING FOR AREAS ABOVE 4500 FEET IN LINCOLN
COUNTY REMAINS IN EFFECT UNTIL 10 AM PST TUESDAY.

* TIMING: AFTER A BREAK THIS EVENING...SNOW IS EXPECTED TO RESUME
  OVERNIGHT AND LAST THROUGH TUESDAY MORNING.

* SNOW LEVEL: AROUND 5500 FEET TODAY LOWERING TO AROUND 4500 
  FEET LATE TONIGHT INTO EARLY TUESDAY.

* TOTAL SNOW ACCUMULATIONS: 8 TO 12 INCHES WILL BE POSSIBLE 
  FROM 4500 TO 6000 FEET WITH 12 TO 16 INCHES POSSIBLE ABOVE 
  6000 FEET.

* WINDS: LESS THAN 20 MPH.

* IMPACTS: DRIVERS PLANNING TO TRAVEL ON ROADWAYS IN LINCOLN 
  COUNTY SHOULD BE PREPARED FOR WINTER DRIVING CONDITIONS 
  INCLUDING THE POTENTIAL FOR LOW VISIBILITIES AND SNOW 
  COVERED ROADS THAT COULD MAKE TRAVEL DIFFICULT.

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.

&&

$$

NVZ014-141400-
/O.CON.KVEF.WS.W.0003.000000T0000Z-120214T1400Z/
ESMERALDA AND CENTRAL NYE COUNTY-
INCLUDING THE CITIES OF...GOLDFIELD...SILVER PEAK...DYER
734 PM PST MON FEB 13 2012

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM PST TUESDAY
ABOVE 4500 FEET...

A WINTER STORM WARNING FOR AREAS ABOVE 4500 FEET IN ESMERALDA AND
CENTRAL NYE COUNTIES REMAINS IN EFFECT UNTIL 6 AM PST TUESDAY.

* TIMING: SNOW IS EXPECTED TO INCREASE IN INTENSITY OVERNIGHT AND
  TAPER OFF EARLY TUESDAY MORNING.

* SNOW LEVEL: 4000 TO 4500 FEET.

* TOTAL SNOW ACCUMULATIONS: 6 TO 8 INCHES WILL BE POSSIBLE FROM 
  4500 TO 6000 FEET WITH 8 TO 12 INCHES POSSIBLE ABOVE 6000 
  FEET. 

* WINDS: NORTHWEST 15 TO 25 MPH WITH HIGHER GUSTS.

* IMPACTS: DRIVERS PLANNING TO TRAVEL ON ROADWAYS IN ESMERALDA 
  AND CENTRAL NYE COUNTIES SHOULD BE PREPARED FOR WINTER 
  DRIVING CONDITIONS INCLUDING THE POTENTIAL FOR LOW 
  VISIBILITIES AND SNOW COVERED ROADS THAT COULD MAKE TRAVEL 
  DIFFICULT. 

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.

&&

$$

NVZ018-019-141400-
/O.CON.KVEF.WW.Y.0003.000000T0000Z-120214T1800Z/
SHEEP RANGE-SPRING MOUNTAINS-RED ROCK CANYON-
INCLUDING...THE TOWN OF MT CHARLESTON
734 PM PST MON FEB 13 2012

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST
TUESDAY ABOVE 4500 FEET...

A WINTER WEATHER ADVISORY FOR AREAS ABOVE 4500 FEET IN THE SPRING
MOUNTAINS AND SHEEP RANGE REMAINS IN EFFECT UNTIL 10 AM PST
TUESDAY.

* TIMING: AFTER A BREAK THIS EVENING...SNOW IS EXPECTED TO RESUME
  OVERNIGHT AND CONTINUE INTO TUESDAY MORNING.

* SNOW LEVEL: NEAR OR BELOW 4000 FEET.

* TOTAL SNOW ACCUMULATIONS: 3 TO 6 INCHES WILL BE POSSIBLE FROM 
  4500 TO 7000 FEET WITH 6 TO 10 INCHES POSSIBLE IN THE 
  HIGHEST ELEVATIONS.

* WINDS: SOUTH 25 TO 35 MPH WITH GUSTS TO 50 MPH POSSIBLE TODAY 
  INTO EARLY THIS EVENING THEN BECOMING LIGHT.

* IMPACTS: DRIVERS ON AREA ROADWAYS...ESPECIALLY HIGHWAYS
  156...157 AND 158 SHOULD BE PREPARED FOR WINTER DRIVING
  CONDITIONS INCLUDING LOW VISIBILITIES AND SNOW COVERED ROADS
  THAT WILL MAKE TRAVEL DIFFICULT.

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.

&&

$$

AZZ001-141400-
/O.CON.KVEF.WW.Y.0003.000000T0000Z-120214T2000Z/
NORTHWEST PLATEAU-
INCLUDING THE CITIES OF...COLORADO CITY...
PIPE SPRING NATIONAL MONUMENT...MT TRUMBULL
834 PM MST MON FEB 13 2012

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 1 PM MST
TUESDAY ABOVE 4500 FEET...

A WINTER WEATHER ADVISORY FOR AREAS ABOVE 4500 FEET IN NORTHERN
MOHAVE COUNTY REMAINS IN EFFECT UNTIL 1 PM MST TUESDAY.

* TIMING: RAIN WILL CHANGE TO SNOW LATE THIS EVENING AND CONTINUE
  THROUGH TUESDAY MORNING.

* SNOW LEVEL: LOWERING TO AROUND 4500 FEET TONIGHT AND TUESDAY.

* TOTAL SNOW ACCUMULATIONS: 3 TO 5 INCHES WILL BE POSSIBLE FROM 
  4500 TO 6000 FEET WITH 5 TO 7 INCHES POSSIBLE IN THE HIGHEST 
  ELEVATIONS.

* WINDS: SOUTH 15 TO 25 MPH IN THE EVENING DECREASING TO 10 TO 
  15 MPH.

* IMPACTS: LOW VISIBILITIES AND SNOW COVERED ROADS MAY MAKE 
  TRAVEL DIFFICULT INTO THE HIGHER PLATEAUS OF NORTHERN MOHAVE 
  COUNTY. IN ADDITION...OUTDOOR ENTHUSIASTS SHOULD USE EXTRA 
  CAUTION IF HEADING INTO THE BACK COUNTRY.

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.

&&

$$

MORGAN
956 
WWUS45 KVEF 141347
WSWVEF

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE LAS VEGAS NV
547 AM PST TUE FEB 14 2012

NVZ014-141500-
/O.EXP.KVEF.WS.W.0003.000000T0000Z-120214T1400Z/
ESMERALDA AND CENTRAL NYE COUNTY-
INCLUDING THE CITIES OF...GOLDFIELD...SILVER PEAK...DYER
547 AM PST TUE FEB 14 2012

...WINTER STORM WARNING WILL EXPIRE AT 6 AM PST THIS MORNING...

THE WINTER STORM WARNING FOR ESMERALDA AND CENTRAL NYE COUNTY WILL
EXPIRE AT 6 AM PST THIS MORNING.

LINGERING MAINLY LIGHT SNOW SHOWERS ARE POSSIBLE THIS MORNING BUT
ADDITIONAL ACCUMULATIONS ARE NOT EXPECTED.

$$

NVZ015-141800-
/O.CON.KVEF.WS.W.0003.000000T0000Z-120214T1800Z/
LINCOLN COUNTY-
INCLUDING THE CITIES OF...CALIENTE...PIOCHE...PANACA...RACHEL
547 AM PST TUE FEB 14 2012

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM PST THIS
MORNING ABOVE 4500 FEET...

A WINTER STORM WARNING FOR ELEVATIONS ABOVE 4500 FEET IN LINCOLN
COUNTY REMAINS IN EFFECT UNTIL 10 AM PST THIS MORNING.

* TIMING: TWO DISTINCT PRECIPITATION BANDS ON SATELLITE IMAGERY
  INDICATES THAT SNOW CONTINUES IN THESE AREAS.

* SNOW LEVEL: AROUND 4500 FEET.

* TOTAL SNOW ACCUMULATIONS: 8 TO 12 INCHES WILL BE POSSIBLE 
  FROM 4500 TO 6000 FEET WITH 12 TO 16 INCHES POSSIBLE ABOVE 
  6000 FEET THROUGH 10 AM THIS MORNING.

* WINDS: LESS THAN 20 MPH.

* IMPACTS: DRIVERS PLANNING TO TRAVEL ON ROADWAYS IN LINCOLN 
  COUNTY SHOULD BE PREPARED FOR WINTER DRIVING CONDITIONS 
  INCLUDING THE POTENTIAL FOR LOW VISIBILITIES AND SNOW 
  COVERED ROADS THAT COULD MAKE TRAVEL DIFFICULT.

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.

&&

$$

NVZ018-019-141800-
/O.CON.KVEF.WW.Y.0003.000000T0000Z-120214T1800Z/
SHEEP RANGE-SPRING MOUNTAINS-RED ROCK CANYON-
INCLUDING...THE TOWN OF MT CHARLESTON
547 AM PST TUE FEB 14 2012

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST THIS
MORNING ABOVE 4500 FEET...

A WINTER WEATHER ADVISORY FOR ELEVATIONS ABOVE 4500 FEET IN THE
SPRING MOUNTAINS AND SHEEP RANGE REMAINS IN EFFECT UNTIL 10 AM
PST THIS MORNING.

* TIMING: SATELLITE IMAGERY SHOWS A BANK OF PRECIPITATION OVER
  SOUTHWEST LINCOLN COUNTY MOVING SOUTH AND COULD BRING ADDITIONAL
  SNOWFALL TO THE AREA THROUGH 10 AM THIS MORNING.

* SNOW LEVEL: 3500 TO 4000 FEET.

* TOTAL SNOW ACCUMULATIONS: 3 TO 6 INCHES WILL BE POSSIBLE FROM 
  4500 TO 7000 FEET WITH 6 TO 10 INCHES POSSIBLE IN THE 
  HIGHEST ELEVATIONS.

* WINDS: LESS THAN 10 MPH.

* IMPACTS: DRIVERS ON AREA ROADWAYS...ESPECIALLY HIGHWAYS
  156...157 AND 158 SHOULD BE PREPARED SNOW COVERED ROADS AND LOW
  VISIBILITIES THAT WILL MAKE TRAVEL DIFFICULT.

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.

&&

$$

AZZ001-142000-
/O.CON.KVEF.WW.Y.0003.000000T0000Z-120214T2000Z/
NORTHWEST PLATEAU-
INCLUDING THE CITIES OF...COLORADO CITY...
PIPE SPRING NATIONAL MONUMENT...MT TRUMBULL
647 AM MST TUE FEB 14 2012

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 1 PM MST THIS
AFTERNOON ABOVE 4500 FEET...

A WINTER WEATHER ADVISORY FOR ELEVATIONS ABOVE 4500 FEET IN THE
NORTHWEST PLATEAU REMAINS IN EFFECT UNTIL 1 PM MST THIS AFTERNOON.

* TIMING: SNOW WILL CONTINUE TO FALL THROUGH MID DAY THEN TAPER
  OFF THIS AFTERNOON.

* SNOW LEVEL: AROUND 4500 FEET.

* TOTAL SNOW ACCUMULATIONS: 3 TO 5 INCHES WILL BE POSSIBLE FROM
  4500 TO 6000 FEET WITH 5 TO 7 INCHES POSSIBLE IN THE HIGHEST
  ELEVATIONS THROUGH 1 PM TODAY.

* WINDS: GENERALLY UNDER 10 MPH.

* IMPACTS: LOW VISIBILITIES AND SNOW COVERED ROADS MAY MAKE 
  TRAVEL DIFFICULT INTO THE HIGHER PLATEAUS OF NORTHERN MOHAVE 
  COUNTY. IN ADDITION...OUTDOOR ENTHUSIASTS SHOULD USE EXTRA 
  CAUTION IF HEADING INTO THE BACK COUNTRY.

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.

&&

$$
511 
WWUS45 KVEF 141746
WSWVEF

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE LAS VEGAS NV
946 AM PST TUE FEB 14 2012

NVZ015-141900-
/O.EXP.KVEF.WS.W.0003.000000T0000Z-120214T1800Z/
LINCOLN COUNTY-
INCLUDING THE CITIES OF...CALIENTE...PIOCHE...PANACA...RACHEL
946 AM PST TUE FEB 14 2012

...WINTER STORM WARNING WILL EXPIRE AT 10 AM PST THIS MORNING
ABOVE 4500 FEET...

THE WINTER STORM WARNING ABOVE 4500 FEET WILL EXPIRE AT 10 AM PST
THIS MORNING FOR LINCOLN COUNTY. 

VERY LIGHT SNOW SHOWERS WILL CONTINUE AT TIMES TODAY WITH ANY
ADDITIONAL ACCUMULATIONS ADDING UP TO LESS THAN AN INCH.
 
LINCOLN COUNTY SHERIFFS OFFICE THIS MORNING REPORTED SLICK AND
SLUSHY ROADWAY WITH NO ROAD CLOSURES. 4 TO 6 INCHES OF NEW SNOW
WAS REPORTED BETWEEN PIOCHE AND SPRING VALLEY STATE PARK.

$$

AZZ001-141900-
/O.CAN.KVEF.WW.Y.0003.000000T0000Z-120214T2000Z/
NORTHWEST PLATEAU-
INCLUDING THE CITIES OF...COLORADO CITY...
PIPE SPRING NATIONAL MONUMENT...MT TRUMBULL
1046 AM MST TUE FEB 14 2012

...WINTER WEATHER ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN LAS VEGAS HAS CANCELLED THE
WINTER WEATHER ADVISORY.

VERY LIGHT SNOW SHOWERS WILL CONTINUE AT TIMES TODAY WITH ANY
ADDITIONAL ACCUMULATIONS ADDING UP TO LESS THAN AN INCH.

PIPE SPRING NATIONAL MONUMENT IN FAR NORTHEAST MOHAVE COUNTY
REPORTED 3 INCHES OF NEW SNOW.
 

$$

NVZ018-019-141900-
/O.EXP.KVEF.WW.Y.0003.000000T0000Z-120214T1800Z/
SHEEP RANGE-SPRING MOUNTAINS-RED ROCK CANYON-
INCLUDING...THE TOWN OF MT CHARLESTON
946 AM PST TUE FEB 14 2012

...WINTER WEATHER ADVISORY WILL EXPIRE AT 10 AM PST THIS MORNING
ABOVE 4500 FEET...

THE WINTER WEATHER ADVISORY ABOVE 4500 FEET WILL EXPIRE AT 10 AM
PST THIS MORNING. 

VERY LIGHT SNOW SHOWERS WILL CONTINUE AT TIMES TODAY WITH ANY
ADDITIONAL ACCUMULATIONS ADDING UP TO LESS THAN AN INCH.

SNOW AMOUNTS VARIED WIDELY IN THE SPRING MOUNTAINS. IN LEE CANYON
AMOUNTS RECEIVED SO FAR RANGED BETWEEN 4 AND 9 INCHES. IN KYLE
CANYON...THE NEVADA DIVISION OF FORESTRY REPORTED 2 NEW INCHES OF SNOW.

$$

PIERCE

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 13, 3:44 AM PST, 57 minutes earlier.

Area forecast discussion, Feb 13, 3:44 AM PST, 57 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LAS VEGAS NV
344 AM PST MON FEB 13 2012

.SYNOPSIS...A WINTER STORM WILL IMPACT THE AREA TODAY THROUGH
TUESDAY WITH GUSTY WINDS ACROSS THE MOJAVE DESERT AND RAIN AND SNOW
OVER THE SIERRA AND SOUTHERN GREAT BASIN. RAIN AND SNOW WILL BECOME
MORE WIDESPREAD TONIGHT THROUGH TUESDAY AS THE STORM MOVES INTO
SOUTHERN NEVADA WITH MODERATE TO HEAVY SNOWFALL POSSIBLE OVER THE
HIGHER TERRAIN OF SOUTHERN NEVADA AND FAR NORTHWEST ARIZONA. THERE
IS A CHANCE FOR RAIN ACROSS THE MOJAVE DESERT REGION LATER THIS
AFTERNOON AND OVERNIGHT. ANOTHER STORM IS FORECAST TO MOVE INTO THE
AREA BY MID WEEK BRINGING THE POTENTIAL FOR MORE RAIN AND SNOW.
&&

.SHORT TERM...AT 3 AM MONDAY...MODELS ANALYZED THE CENTER OF THE
INCOMING WINTER STORM OVER NORTHERN CALIFORNIA AND THIS APPEARS TO
BE CORRECT BASED ON SATELLITE IMAGERY. THIS LOW...IS EXPECTED TO BE
CONSIDERABLY STRONGER THAN THE ONE THAT EXITED THE AREA YESTERDAY
AND IS FORECAST TO BE CENTERED OVER CENTRAL CALIFORNIA THIS
AFTERNOON AND THEN OVER SOUTHERN NEVADA AND NORTHWEST ARIZONA
TONIGHT. BASED ON DOPPLER RADAR OUT OF HANFORD...RAIN AND SNOW HAS
ALREADY DEVELOPED OVER THE SOUTHERN SIERRA AHEAD OF THE LOW...IN AN
AREA OF UPPER DIFLUENCE. RAIN AND SNOW WILL QUICKLY SPREAD EAST OVER
THE NORTHERN ZONES THROUGH THE DAY WITH SNOW LEVELS BEGINNING AROUND
5500 FEET AND THEN LOWERING TO BETWEEN 4000-4500 FEET TONIGHT IN
THESE AREAS. BY MID AFTERNOON...THE LOW WILL BE IN POSITION TO START
GENERATING RAIN AND SNOW OVER THE CLARK COUNTY MOUNTAINS AND ALSO
NORTHERN MOHAVE COUNTY. THERE WILL BE A SLIGHT CHANCE OF RAIN OVER
THE MOJAVE DESERT...GENERALLY NORTH OF INTERSTATE 40 THIS AFTERNOON.
RAIN AND SNOW AMOUNTS WILL DEPEND ON THE EVENTUAL STORM TRACK BUT
THE CURRENT FORECAST POSITION FOR THE LOW CENTER WOULD PLACE THE
HEAVIEST PRECIPITATION ON THE EASTERN AND NORTHERN SIDE OF THE LOW
OR OVER MOHAVE...LINCOLN AND CENTRAL NYE COUNTIES AS WELL AS THE
CLARK COUNTY MOUNTAINS. WILL GO WITH A WINTER STORM WARNING OVER
CENTRAL NYE AND LINCOLN COUNTIES WHERE MODEL FORECASTED
PRECIPITATION IS THE HEAVIEST. SNOW ADVISORIES WERE ISSUED FOR THE
CLARK COUNTY MOUNTAINS AND NORTHERN MOHAVE COUNTY WHERE SNOW TOTALS
LOOKED LESS IMPRESSIVE. SNOW LEVELS WILL GENERALLY START OUT AROUND
5500 FEET IN CLARK AND MOHAVE COUNTIES TODAY BUT THEN LOWER TO
BETWEEN 3500 AND 4000 FEET TONIGHT AS THE LOW MOVES OVERHEAD. IN
ADDITION TO THE PRECIP...STRONG SOUTHWEST WINDS ARE EXPECTED ACROSS
THE MOJAVE DESERT TODAY AND CONTINUING INTO THE EARLY EVENING HOURS.
MUCH OF SAN BERNARDINO...SOUTHERN INYO ...CENTRAL NYE...SOUTHERN
CLARK AND SOUTHERN MOHAVE COUNTIES SHOULD SEE FAIRLY WIDESPREAD
GUSTS BETWEEN 40 AND 45 MPH TODAY. A WIND ADVISORY IS CONTINUED FOR
THESE AREAS BEGINNING AT 10 AM PST THIS MORNING. THE LOWER
ELEVATIONS OF LAKE MEAD AND THE COLORADO RIVER WILL SEE WINDS THAT
ARE STRONG ENOUGH TO JUSTIFY THE LAKE WIND ADVISORY THAT WILL BE IN
EFFECT BEGINNING AT 10 AM PST. THE STRONG WINDS WILL DECREASE OVER
MOST AREAS THIS EVENING. TEMPERATURES MAY STRUGGLE TO REACH NORMAL
LEVELS TODAY WITH THE LOW AND ASSOCIATED WEATHER AND CLOUDS MOVING
IN BUT ARE NEARLY CERTAIN TO BEE WELL BELOW NORMAL TUESDAY WITH THE
LOW OVERHEAD.

.LONG TERM...MODELS ARE IN BETTER AGREEMENT WITH A LOW PRESSURE
SYSTEM FORECAST TO IMPACT THE FORECAST AREA ON WEDNESDAY...WITH
OVERALL CONSENSUS TRACKING THE 500MB LOW CENTER SOUTH FROM EXTREME
NW NEVADA TO THE SOCAL/MEXICO BORDER BY THURSDAY
MORNING...CONTINUING SOUTH/SOUTHEAST ON THURSDAY AND AWAY FROM THE
REGION. CHANGES TO INHERITED GRIDS WERE PRIMARILY INCREASING POPS ON
WEDNESDAY AREAWIDE WITH A THE MOST INCREASE ACROSS CA AND THE MOJAVE
DESERT. RIGHT NOW AVAILABLE MOISTURE DOES NOT LOOK TO IMPRESSIVE BUT
MAY STILL NEED ADVISORIES FOR THE SIERRA. SNOW LEVELS BE ABOUT 5KFT
ON AVERAGE ON WEDNESDAY. BREEZY SOUTHWEST WINDS ARE EXPECTED AHEAD
OF THE LOW ON WEDNESDAY. RIDGING WILL THEN NOSE IN TO THE NORTH
BEHIND THE SYSTEM AND BRING A RETURN TO DRY CONDITIONS...BUT WILL
ALSO RESULT IN BREEZY NORTH WINDS ON THURSDAY AND FRIDAY WITH
STRONGEST WINDS EXPECTED DOWN THE COLORADO RIVER VALLEY ZONES...AND
MAY NEED AT LEAST LAKE WIND ADVISORIES ON THURSDAY BASED ON LATEST
MEX GUIDANCE. THE NEXT SYSTEM WILL PASS OVER THE REGION LATE
SATURDAY AND SUNDAY...BUT THERE ARE CONSIDERABLE DIFFERENCE IN MODEL
SOLUTIONS AT THIS TIME SO OPTED TO GO WITH A BROAD BRUSHED APPROACH
FOR NOW UNTIL THERE IS BETTER AGREEMENT ON THE PATH OF THIS SYSTEM.
MINIMAL CHANGE WAS MADE THE EXISTING FORECAST AT THE END OF THE
PERIOD.
&&

.AVIATION...MCCARRAN...CLOUD COVER AND WINDS WILL INCREASE THIS
MORNING THROUGH EARLY AFTERNOON AHEAD OF A LOW PRESSURE SYSTEM
APPROACHING THE AREA. SCT-BKN CLOUD COVERAGE BETWEEN 6-8KFT LOOKS
LIKELY TO DEVELOP BY LATE THIS MORNING AND PERSIST THE REMAINDER OF
THE DAY...POTENTIALLY FORCING TO IFR. THIS WILL PERSIST THROUGH THE
NIGHT BEFORE BEGINNING TO IMPROVE EARLY TUESDAY MORNING. SURFACE
WINDS WILL REMAIN OUT OF THE SOUTHWEST...WITH GUSTS AROUND 25KTS ON
AVERAGE. WE COULD SEE PRECIP AS EARLY AS THIS AFTERNOON...BUT THE
BEST CHANCE FOR ANY PRECIP AT KLAS LOOKS TO BE IN THE EVENING. CIGS
DURING ANY SHOWER ACTIVITY WILL DROP TO 6KFT OR LOWER.

FOR THE REST OF SOUTHERN NEVADA...NORTHWEST ARIZONA...AND SOUTHEAST
CALIFORNIA...A STORM SYSTEM MOVING ACROSS THE REGION TODAY AND
OVERNIGHT WILL RESULT IN STRONG SOUTHWEST WINDS OVER SAN BERNARDINO
AND MOHAVE COUNTIES WITH GUSTS OVER 35KTS. ELSEWHERE WINDS WILL BE
AROUND 15-25KTS. SCATTERED SHOWERS WITH CIGS DOWN TO 5K FEET CAN BE
EXPECTED AT TIMES DURING THE DAY ALONG AND OBSCURE HIGHER ELEVATIONS.
&&

.VEF WATCHES/WARNINGS/ADVISORIES...
NV...WINTER WEATHER ADVISORY FROM 2 PM THIS AFTERNOON TO 10 AM PST
     TUESDAY FOR NVZ018-019.
     LAKE WIND ADVISORY FROM 10 AM THIS MORNING TO MIDNIGHT PST
     TONIGHT FOR NVZ021.
     WIND ADVISORY FROM 10 AM THIS MORNING TO MIDNIGHT PST TONIGHT
     FOR NVZ017-022.
     WINTER STORM WARNING FROM NOON TODAY TO 6 AM PST TUESDAY FOR
     NVZ014.
     WINTER STORM WARNING FROM NOON TODAY TO 10 AM PST TUESDAY FOR
     NVZ015.
AZ...LAKE WIND ADVISORY FROM 11 AM THIS MORNING TO 1 AM MST TUESDAY
     FOR AZZ036.
     WIND ADVISORY FROM 11 AM THIS MORNING TO 1 AM MST TUESDAY FOR
     AZZ003.
     WINTER WEATHER ADVISORY FROM 7 PM THIS EVENING TO 1 PM MST
     TUESDAY FOR AZZ001.
CA...WIND ADVISORY FROM 10 AM THIS MORNING TO MIDNIGHT PST TONIGHT
     FOR CAZ522>525.
&&

SALMEN/KENNEDY

HTTP://WEATHER.GOV/LASVEGAS
Hazardous weather outlook, Feb 12, 4:59 AM PST, 23 hours 42 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE LAS VEGAS NV
459 AM PST SUN FEB 12 2012

AZZ001-NVZ014-015-018-019-130800-
NORTHWEST PLATEAU-ESMERALDA AND CENTRAL NYE COUNTY-LINCOLN COUNTY-
SHEEP RANGE-SPRING MOUNTAINS-
459 AM PST SUN FEB 12 2012 /559 AM MST SUN FEB 12 2012/

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHWEST
ARIZONA AND SOUTHERN NEVADA.

.DAY ONE...TODAY AND TONIGHT

ISOLATED TO SCATTERED SNOW SHOWERS WILL OCCUR AT ELEVATIONS ABOVE
5500 FEET IN SOUTHERN NEVADA AND FAR NORTHWEST ARIZONA TODAY
BEFORE THE LOW PRESSURE SYSTEM MOVES EAST TONIGHT. ANY ACCUMULATIONS
ARE EXPECTED TO BE AN INCH OR LESS.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

A COLDER AND MORE POTENT STORM WILL DROP INTO THE REGION MONDAY AND
BRING SIGNIFICANT SNOW ACCUMULATIONS TO ELEVATIONS ABOVE 4500
FEET IN SOUTHERN NEVADA AND FAR NORTHWEST ARIZONA THROUGH TUESDAY
AFTERNOON. SEE THE LATEST WINTER WEATHER MESSAGE FOR DETAILS ON
THIS STORM. ANOTHER STORM IS EXPECTED TO FOLLOW ON WEDNESDAY AND
WEDNESDAY NIGHT BUT MOISTURE WILL BE MORE LIMITED THAN THE
PRECEDING SYSTEM.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME. HOWEVER...
SPOTTERS ARE ENCOURAGED TO REPORT ANY SIGNIFICANT WEATHER
CONDITIONS AND SNOW AMOUNTS ACCORDING TO STANDARD OPERATING
PROCEDURES.

AZZ002-003-036-CAZ519>527-NVZ016-017-020>022-130800-
LOWER COLORADO RIVER VALLEY-NORTHWEST DESERTS-
LAKE MEAD NATIONAL RECREATION AREA-EASTERN SIERRA SLOPES-
OWENS VALLEY-WHITE MOUNTAINS OF INYO COUNTY-
DEATH VALLEY NATIONAL PARK-WESTERN MOJAVE DESERT-
EASTERN MOJAVE DESERT-MORONGO BASIN-CADIZ BASIN-
SAN BERNARDINO COUNTY-UPPER COLORADO RIVER VALLEY-
NORTHEAST CLARK COUNTY-WESTERN CLARK AND SOUTHERN NYE COUNTY-
LAS VEGAS VALLEY-SOUTHERN CLARK COUNTY-
459 AM PST SUN FEB 12 2012 /559 AM MST SUN FEB 12 2012/

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHWEST
ARIZONA...CALIFORNIA AND SOUTHERN NEVADA.

.DAY ONE...TODAY AND TONIGHT

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

A COLD LOW PRESSURE SYSTEM WILL MOVE DOWN THE CALIFORNIA-NEVADA
BORDER MONDAY THEN BE CENTERED OVER SOUTHERN NEVADA TUESDAY
BEFORE MOVING ACROSS ARIZONA TUESDAY NIGHT. THIS SYSTEM WILL LIKELY
PRODUCE LIGHT SNOW ACCUMULATIONS ON THE EAST SLOPES OF THE
SOUTHERN SIERRA AND WHITE MOUNTAINS MONDAY AFTERNOON THROUGH
MONDAY NIGHT. INCREASING SOUTHWEST TO WEST WINDS WILL DEVELOP OVER
THE MOJAVE DESERT MONDAY AFTERNOON AND EVENING WITH GUSTS OVER
40 MPH LIKELY OVER NORTHERN SAN BERNARDINO COUNTY AND THE MORONGO
BASIN.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME. HOWEVER...
SPOTTERS ARE ENCOURAGED TO REPORT ANY SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 13, 4:41 AM PSTWinter Weather AdvisoryVEFClark, Lincoln, Nye29 hr

Nearby

Winter Storm Warnings in Nevada, 2012Every winter storm warning in 2012

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive.