Alert archive / California / Winter Storm Warnings in 2018

Winter Storm Warning 4, NWS Reno, NV

March 12, 2018Douglas County, Washoe County, Nevada; 4 counties in California

NWS Reno, NV issued this winter storm warning at Mar 12, 2018, 2:25 PM PDT for Douglas County, Washoe County, Nevada; 4 counties in California. It took effect at Mar 13, 2018, 1:00 PM PDT. It was in force for 33 hr. 12 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
Mar 12, 2018, 2:25 PM PDT (21:25 UTC)
In effect from
Mar 13, 2018, 1:00 PM PDT
Expired
Mar 14, 2018, 9:32 PM PDT
In force
33 hr
Issued by
NWS Reno, NV

Counties Alpine County, CA, El Dorado County, CA, Nevada County, CA, Placer County, CA, Douglas County, NV, Washoe County, NV

The radar

The Reno radar (KRGX), 86 km from the middle of the area, began a volume at 21:26 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
Mar 14, 5:00 AM PDTSNOW 21 Ese Carson Pass, CAMESONET STATION FDCC1, 1 ESE CARSON PASS.
Mar 14, 5:00 AM PDTSNOW 32 Se Emerald Bay, CAMESONET STATION FLFC1, 2 SE EMERALD BAY.
Mar 14, 5:55 AM PDTSNOW 3Truckee Airport, CAAWOS STATION TRK, TRUCKEE AIRPORT.
Mar 14, 6:00 AM PDTSNOW 15 Se Verdi, NVMESONET STATION BMWN2, 5 SE VERDI.
Mar 14, 7:00 AM PDTSNOW 9.9Tahoma, Ca, CACO-OP OBSERVER STATION TAAC1, TAHOMA, CA.
Mar 14, 7:11 AM PDTSNOW 10Mount Rose Ski Resort, NVMOUNT ROSE SKI RESORT REPORTED 8-10 INCHES OF NEW SNOW IN THE LAST 24 HOURS AT ELEVATION 8260 FEET.
Mar 14, 7:15 AM PDTSNOW 7Diamond Peak Ski Resort, NVDIAMOND PEAK SKI RESORT REPORTED 7 INCHES OF NEW SNOW IN 24 HOURS AT ELEVATION 8540 FEET.
Mar 14, 7:19 AM PDTSNOW 9Homewood Ski Resort, CAHOMEWOOD SKI RESORT REPORTED 9 INCHES OF NEW SNOW IN THE LAST 24 HOURS AT ELEVATION 7880 FEET.
Mar 14, 7:29 AM PDTSNOW 11Northstar Ski Resort, CANORTHSTAR SKI RESORT REPORTED 11 INCHES OF NEW SNOW IN THE LAST 24 HOURS AT ELEVATION 8610 FEET.
Mar 14, 7:32 AM PDTSNOW 10Heavenly Ski Resort, CAHEAVENLY SKI RESORT REPORTED 10 INCHES OF NEW SNOW IN THE LAST 24 HOURS AT ELEVATION 9600 FEET.
Mar 14, 7:36 AM PDTSNOW 12Squaw Valley Ski Resort, CASQUAW VALLEY SKI RESORT REPORTED 12 INCHES OF NEW SNOW IN THE LAST 24 HOURS AT ELEVATION 8000 FEET.
Mar 14, 7:41 AM PDTSNOW 12Alpine Meadows Ski Reso, CAALPINE MEADOWS SKI RESORT REPORTED 12 INCHES OF NEW SNOW IN THE LAST 24 HOURS AT ELEVATION 8000 FEET.

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

The nearest sounding before it

Reno, NV (KREV), launched 12:00Z, 9.4 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, Reno, NV at 12:00Z on 2018-03-12Temperature 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 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Reno, NV at 12:00Z on 2018-03-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 52 square meters per square second.193958Sfc1 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
1476 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
52 m²/s²
0-3 km storm-relative helicity
172 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

868 
WWUS45 KREV 122125
WSWREV

URGENT - WINTER WEATHER MESSAGE
National Weather Service Reno NV
225 PM PDT Mon Mar 12 2018

CAZ072-NVZ002-131200-
/O.UPG.KREV.WW.Y.0010.180313T2000Z-180315T0000Z/
/O.NEW.KREV.WS.W.0004.180313T2000Z-180314T1800Z/
Greater Lake Tahoe Area-
Including the cities of South Lake Tahoe, Truckee, Stateline, 
and Incline Village
225 PM PDT Mon Mar 12 2018

...WINTER STORM WARNING IN EFFECT FROM 1 PM TUESDAY TO 11 AM PDT
WEDNESDAY...

* WHAT...Heavy snow expected. For areas near and west of Highway
  89...total snow accumulations of 6 to 14 inches, with 1 to 2
  feet above 7000 feet. For areas east of Highway 89...total snow
  accumulations of 3 to 7 inches, with up to 12 inches above 7000
  feet.

* WHERE...Greater Lake Tahoe Area.

* WHEN...From 1 PM Tuesday to 11 AM PDT Wednesday. Heaviest snow
  most likely above 7000 feet between 2 and 6 pm Tuesday...then 
  at all elevations for most of Tuesday night. 

* ADDITIONAL DETAILS...Plan on rapidly worsening travel conditions
  Tuesday afternoon and evening, with heavy snow and gusty winds
  producing near whiteout conditions at times through Tuesday
  night, especially on the California side of the Tahoe region.
  Hazardous boating conditions are expected on Lake Tahoe. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Avoid travel if possible, you could be stuck in your vehicle for
many hours. If you must travel, prepare for long delays and carry
an emergency kit with extra food, water and clothing. If you stay
home, have a backup plan in case of power outages. The latest
road conditions can be obtained by calling 5 1 1.

&&

$$

CAZ071-131200-
/O.EXT.KREV.WW.Y.0010.180313T2000Z-180314T1800Z/
Lassen-Eastern Plumas-Eastern Sierra Counties-
Including the cities of Portola and Susanville
225 PM PDT Mon Mar 12 2018

...WINTER WEATHER ADVISORY NOW IN EFFECT FROM 1 PM TUESDAY TO
11 AM PDT WEDNESDAY...

* WHAT...Snow expected. Total snow accumulations of 2 to 4 inches,
  with localized amounts up to 10 inches, are expected mainly 
  west of Highways 89 and 395. 

* WHERE...Lassen-Eastern Plumas-Eastern Sierra Counties.

* WHEN...From 1 PM Tuesday to 11 AM PDT Wednesday. Heaviest snow
  most likely Tuesday night between 10 PM and 4 AM.
 
* ADDITIONAL DETAILS...Plan on slippery road conditions and be
  prepared for reduced visibilities at times through Tuesday
  night, especially west of Highways 89 and 395.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Even lighter snowfall causes major travel delays, especially 
during periods of high traffic volume. Be sure to allow extra time
to reach your destination. Leave extra space between vehicles 
since it takes longer to stop on slick roadways. The latest road 
conditions can be obtained by calling 5 1 1.

&&

$$

CAZ073-131200-
/O.EXT.KREV.WW.Y.0010.180313T2000Z-180314T1800Z/
Mono County-
Including the cities of Bridgeport and Mammoth Lakes
225 PM PDT Mon Mar 12 2018

...WINTER WEATHER ADVISORY NOW IN EFFECT FROM 1 PM TUESDAY TO
11 AM PDT WEDNESDAY...

* WHAT...Snow expected. Total snow accumulations of 2 to 4 inches,
  with localized amounts of up to 8 inches mainly west of Highway
  395. Above 8000 feet...6 to 12 inches, with localized totals of
  up to 18 inches along the Sierra crest.

* WHERE...Mono County.

* WHEN...From 1 PM Tuesday to 11 AM PDT Wednesday. Heaviest snow
  most likely above 8000 feet between 4 and 8 pm Tuesday...then 
  at all elevations for most of Tuesday night. 

* ADDITIONAL DETAILS...Plan on slippery road conditions, including
  during the evening commute on Tuesday. Be prepared for reduced
  visibilities at times and gusty winds especially in higher 
  elevations west of Highway 395.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Even lighter snowfall causes major travel delays, especially 
during periods of high traffic volume. Be sure to allow extra time
to reach your destination. Leave extra space between vehicles 
since it takes longer to stop on slick roadways. The latest road 
conditions can be obtained by calling 5 1 1.

&&

$$

http://www.weather.gov/reno
8 follow-up statements
068 
WWUS45 KREV 131028
WSWREV

URGENT - WINTER WEATHER MESSAGE
National Weather Service Reno NV
328 AM PDT Tue Mar 13 2018

CAZ072-NVZ002-140000-
/O.NEW.KREV.WS.A.0005.180316T0000Z-180317T1200Z/
/O.CON.KREV.WS.W.0004.180313T2000Z-180314T1800Z/
Greater Lake Tahoe Area-
Including the cities of South Lake Tahoe, Truckee, Stateline, 
and Incline Village
328 AM PDT Tue Mar 13 2018

...WINTER STORM WARNING REMAINS IN EFFECT FROM 1 PM THIS
AFTERNOON TO 11 AM PDT WEDNESDAY...
...WINTER STORM WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH
LATE FRIDAY NIGHT...

* WHAT...For this afternoon through Wednesday morning: Moderate 
  to heavy snow is expected. Total snow accumulation of 4 to 8 
  inches are likely at lake level, with higher amounts of 8 to 14 
  inches west of Highway 89. Above 7000 feet total accumulations 
  of 10 to 20 inches are likely.

* WHAT...For Thursday afternoon through Saturday morning: Moderate
  to heavy snow is possible. Snow accumulations of 10 to 16 
  inches are possible at lake level with 18 to 30 inches above 
  7000 feet.

* WHERE...Greater Lake Tahoe Area.

* WHEN...For the Winter Storm Warning, from 1 PM this afternoon 
  to 11 AM PDT Wednesday. For the Winter Storm Watch, from 
  Thursday afternoon through late Friday night.

* ADDITIONAL DETAILS...Plan on difficult travel conditions, 
  including during the evening commute. Damage to trees and 
  power lines is likely. Be prepared for significant reductions 
  in visibility at times. Plan on difficult travel conditions. 
  Tree branches could fall. Significant reductions in visibility 
  are possible.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Avoid travel if possible, you could be stuck in your vehicle for
many hours. If you must travel, prepare for long delays and carry
an emergency kit with extra food, water and clothing. If you stay
home, have a backup plan in case of power outages. The latest
road conditions can be obtained by calling 5 1 1.

Now is the time to prepare an emergency kit for your home and
car. If traveling consider alternate plans, remember to carry
tire chains, extra food, water and clothing. Once the storm
arrives, travel may be difficult or impossible for an extended
period of time.

&&

$$

CAZ071-140000-
/O.NEW.KREV.WS.A.0005.180316T0000Z-180317T1200Z/
/O.CON.KREV.WW.Y.0010.180313T2000Z-180314T1800Z/
Lassen-Eastern Plumas-Eastern Sierra Counties-
Including the cities of Portola and Susanville
328 AM PDT Tue Mar 13 2018

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 1 PM THIS
AFTERNOON TO 11 AM PDT WEDNESDAY...
...WINTER STORM WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH
LATE FRIDAY NIGHT...

* WHAT...For this afternoon through Wednesday morning: Moderate to
  heavy snow is likely. Total snow accumulations of 2 to 4 inches
  are possible with locally higher amounts of 6 to 12 inches 
  above 5000 feet. The greatest amounts will be west of Highway 
  395.

* WHAT...For Thursday afternoon through Saturday morning: Moderate
  to heavy snow is possible. Total snow accumulations of 4 to 10
  inches are possible with higher amounts of 16 to 22 inches above
  5000 feet west of Highway 395.

* WHERE...Lassen-Eastern Plumas-Eastern Sierra Counties.

* WHEN...For the Winter Weather Advisory, from 1 PM this 
  afternoon to 11 AM PDT Wednesday. For the Winter Storm Watch, 
  from Thursday afternoon through late Friday night.

* ADDITIONAL DETAILS...Plan on slippery road conditions, 
  including during the evening commute. Damage to trees and 
  power lines is likely. Be prepared for reduced visibilities at 
  times. Plan on difficult travel conditions. Significant 
  reductions in visibility are possible.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Even light snowfall causes major travel delays, especially during
periods of high traffic volume. Be sure to allow extra time to
reach your destination. Leave extra space between vehicles since
it takes longer to stop on slick roadways. The latest road
conditions can be obtained by calling 5 1 1.

Now is the time to prepare an emergency kit for your home and
car. If traveling consider alternate plans, remember to carry
tire chains, extra food, water and clothing. Once the storm
arrives, travel may be difficult or impossible for an extended
period of time.

&&

$$

CAZ073-140000-
/O.NEW.KREV.WS.A.0005.180316T0000Z-180317T1200Z/
/O.CON.KREV.WW.Y.0010.180313T2000Z-180314T1800Z/
Mono County-
Including the cities of Bridgeport and Mammoth Lakes
328 AM PDT Tue Mar 13 2018

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 1 PM THIS
AFTERNOON TO 11 AM PDT WEDNESDAY...
...WINTER STORM WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH
LATE FRIDAY NIGHT...

* WHAT...For this afternoon through Wednesday morning: Moderate to
  heavy snow is expected. Total snow accumulations of 1 to 4
  inches, with locally higher amounts up to 8 inches west of
  Highway 395. Above 8000 feet 6 to 12 inches is likely, with
  locally higher amounts near 18 inches along the Sierra Crest.

* WHAT...For Thursday afternoon through Saturday morning: 
  Moderate to heavy snow is possible. Total snow accumulations of 
  3 to 6 inches east of Highway 395 with 6 to 12 inches west of 
  Highway 395 are possible. Above 7000 feet amounts of 1 to 2 feet
  are possible.

* WHERE...Mono County.

* WHEN...For the Winter Weather Advisory, from 1 PM this 
  afternoon to 11 AM PDT Wednesday. For the Winter Storm Watch, 
  from Thursday afternoon through late Friday night.

* ADDITIONAL DETAILS...Plan on slippery road conditions. Tree 
  branches could fall. Be prepared for reduced visibilities at 
  times. Plan on difficult travel conditions, including during 
  the evening commute on Friday. Significant reductions in 
  visibility are possible.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Even light snowfall causes major travel delays, especially during
periods of high traffic volume. Be sure to allow extra time to
reach your destination. Leave extra space between vehicles since
it takes longer to stop on slick roadways. The latest road
conditions can be obtained by calling 5 1 1.

Now is the time to prepare an emergency kit for your home and
car. If traveling consider alternate plans, remember to carry
tire chains, extra food, water and clothing. Once the storm
arrives, travel may be difficult or impossible for an extended
period of time.

&&

$$

NVZ003-140000-
/O.NEW.KREV.WS.A.0005.180316T0000Z-180317T1200Z/
Greater Reno-Carson City-Minden Area-
Including the cities of Sparks, Gardnerville, and Virginia City
328 AM PDT Tue Mar 13 2018

...WINTER STORM WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH
LATE FRIDAY NIGHT...

* WHAT...Moderate to heavy is snow possible. Total snow
  accumulations of 3 to 7 inches are possible. Above 5000 feet,
  amounts could reach 6 to 12 inches.

* WHERE...Greater Reno-Carson City-Minden Area.

* WHEN...From Thursday afternoon through late Friday night.

* ADDITIONAL DETAILS...Travel could become difficult due to icy
  and snow covered roads. Timing and snow amounts are likely to
  change as we get closer to the actual event. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Now is the time to prepare an emergency kit for your home and
car. If traveling consider alternate plans, remember to carry
tire chains, extra food, water and clothing. Once the storm
arrives, travel may be difficult or impossible for an extended
period of time.

&&

$$

http://www.weather.gov/reno
381 
WWUS45 KREV 131346
WSWREV

URGENT - WINTER WEATHER MESSAGE
National Weather Service Reno NV
646 AM PDT Tue Mar 13 2018

CAZ072-NVZ002-140000-
/O.CON.KREV.WS.W.0004.180313T2000Z-180314T1800Z/
/O.CON.KREV.WS.A.0005.180316T0000Z-180317T1200Z/
Greater Lake Tahoe Area-
Including the cities of South Lake Tahoe, Truckee, Stateline, 
and Incline Village
646 AM PDT Tue Mar 13 2018

...WINTER STORM WARNING REMAINS IN EFFECT FROM 1 PM THIS
AFTERNOON TO 11 AM PDT WEDNESDAY...
...WINTER STORM WATCH REMAINS IN EFFECT FROM THURSDAY AFTERNOON
THROUGH LATE FRIDAY NIGHT...

* WHAT...Moderate to heavy snow is expected. Total snow
  accumulation of 4 to 8 inches are likely at lake level, with
  higher amounts of 8 to 14 inches west of Highway 89 this
  afternoon and tonight. Above 7000 feet total accumulations of 10
  to 20 inches are likely. For Thursday afternoon through 
  Saturday morning, additional snow accumulations of 10 to 16 
  inches are possible at lake level with 18 to 30 inches above 
  7000 feet.

* WHERE...Greater Lake Tahoe Area.

* WHEN...For the Winter Storm Warning, from 1 PM this afternoon 
  to 11 AM PDT Wednesday. For the Winter Storm Watch, from 
  Thursday afternoon through late Friday night.

* ADDITIONAL DETAILS...Plan on difficult travel conditions, 
  including during the evening commute. Damage to trees and 
  power lines is likely. Be prepared for significant reductions 
  in visibility at times. Plan on difficult travel conditions. 
  Tree branches could fall. Significant reductions in visibility 
  are possible.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Avoid travel if possible, you could be stuck in your vehicle for
many hours. If you must travel, prepare for long delays and carry
an emergency kit with extra food, water and clothing. If you stay
home, have a backup plan in case of power outages. The latest
road conditions can be obtained by calling 5 1 1.

Now is the time to prepare an emergency kit for your home and
car. If traveling consider alternate plans, remember to carry
tire chains, extra food, water and clothing. Once the storm
arrives, travel may be difficult or impossible for an extended
period of time.

&&

$$

CAZ071-140000-
/O.CON.KREV.WW.Y.0010.180313T2000Z-180314T1800Z/
/O.CON.KREV.WS.A.0005.180316T0000Z-180317T1200Z/
Lassen-Eastern Plumas-Eastern Sierra Counties-
Including the cities of Portola and Susanville
646 AM PDT Tue Mar 13 2018

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 1 PM THIS
AFTERNOON TO 11 AM PDT WEDNESDAY...
...WINTER STORM WATCH REMAINS IN EFFECT FROM THURSDAY AFTERNOON
THROUGH LATE FRIDAY NIGHT...

* WHAT...Moderate to heavy snow is likely. Total snow  
  accumulations of 2 to 4 inches are possible with locally higher 
  amounts of 6 to 12 inches above 5000 feet. The greatest amounts 
  will be west of Highway 395. Additional snow accumulations of 4 
  to 10 inches are possible with higher amounts of 16 to 22 inches
  above 5000 feet west of Highway 395 Thursday afternoon through 
  Saturday morning.

* WHERE...Lassen-Eastern Plumas-Eastern Sierra Counties.

* WHEN...For the Winter Weather Advisory, from 1 PM this 
  afternoon to 11 AM PDT Wednesday. For the Winter Storm Watch, 
  from Thursday afternoon through late Friday night.

* ADDITIONAL DETAILS...Plan on slippery road conditions, 
  including during the evening commute. Damage to trees and 
  power lines is likely. Be prepared for reduced visibilities at 
  times. Plan on difficult travel conditions. Significant 
  reductions in visibility are possible.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Even light snowfall causes major travel delays, especially during
periods of high traffic volume. Be sure to allow extra time to
reach your destination. Leave extra space between vehicles since
it takes longer to stop on slick roadways. The latest road
conditions can be obtained by calling 5 1 1.

Now is the time to prepare an emergency kit for your home and
car. If traveling consider alternate plans, remember to carry
tire chains, extra food, water and clothing. Once the storm
arrives, travel may be difficult or impossible for an extended
period of time.

&&

$$

CAZ073-140000-
/O.CON.KREV.WW.Y.0010.180313T2000Z-180314T1800Z/
/O.CON.KREV.WS.A.0005.180316T0000Z-180317T1200Z/
Mono County-
Including the cities of Bridgeport and Mammoth Lakes
646 AM PDT Tue Mar 13 2018

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 1 PM THIS
AFTERNOON TO 11 AM PDT WEDNESDAY...
...WINTER STORM WATCH REMAINS IN EFFECT FROM THURSDAY AFTERNOON
THROUGH LATE FRIDAY NIGHT...

* WHAT...Moderate to heavy snow is expected. Total snow
  accumulations of 1 to 4 inches, with locally higher amounts up
  to 8 inches west of Highway 395. Above 8000 feet 6 to 12 inches
  is likely, with locally higher amounts near 18 inches along the
  Sierra Crest. Additional snow accumulations of 3 to 6 inches
  east of Highway 395 with 6 to 12 inches west of Highway 395 are
  possible for Thursday afternoon through Saturday morning. Above
  7000 feet amounts of 1 to 2 feet are possible.

* WHERE...Mono County.

* WHEN...For the Winter Weather Advisory, from 1 PM this 
  afternoon to 11 AM PDT Wednesday. For the Winter Storm Watch, 
  from Thursday afternoon through late Friday night.

* ADDITIONAL DETAILS...Plan on slippery road conditions. Tree 
  branches could fall. Be prepared for reduced visibilities at 
  times. Plan on difficult travel conditions, including during 
  the evening commute on Friday. Significant reductions in 
  visibility are possible.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Even light snowfall causes major travel delays, especially during
periods of high traffic volume. Be sure to allow extra time to
reach your destination. Leave extra space between vehicles since
it takes longer to stop on slick roadways. The latest road
conditions can be obtained by calling 5 1 1.

Now is the time to prepare an emergency kit for your home and
car. If traveling consider alternate plans, remember to carry
tire chains, extra food, water and clothing. Once the storm
arrives, travel may be difficult or impossible for an extended
period of time.

&&

$$

NVZ003-140000-
/O.CON.KREV.WS.A.0005.180316T0000Z-180317T1200Z/
Greater Reno-Carson City-Minden Area-
Including the cities of Sparks, Gardnerville, and Virginia City
646 AM PDT Tue Mar 13 2018

...WINTER STORM WATCH REMAINS IN EFFECT FROM THURSDAY AFTERNOON
THROUGH LATE FRIDAY NIGHT...

* WHAT...Moderate to heavy is snow possible. Total snow 
  accumulations of 3 to 7 inches are possible. Above 5000 feet, 
  amounts could reach 6 to 12 inches.

* WHERE...Greater Reno-Carson City-Minden Area.

* WHEN...From Thursday afternoon through late Friday night.

* ADDITIONAL DETAILS...Travel could become difficult due to icy 
  and snow covered roads. Timing and snow amounts are likely to 
  change as we get closer to the actual event.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Now is the time to prepare an emergency kit for your home and
car. If traveling consider alternate plans, remember to carry
tire chains, extra food, water and clothing. Once the storm
arrives, travel may be difficult or impossible for an extended
period of time.

&&

$$

http://www.weather.gov/reno
155 
WWUS45 KREV 132345
WSWREV

URGENT - WINTER WEATHER MESSAGE
National Weather Service Reno NV
445 PM PDT Tue Mar 13 2018

CAZ072-NVZ002-141145-
/O.UPG.KREV.WS.A.0005.180316T0000Z-180317T1200Z/
/O.NEW.KREV.WS.W.0005.180316T0000Z-180317T1200Z/
/O.CON.KREV.WS.W.0004.000000T0000Z-180314T1800Z/
Greater Lake Tahoe Area-
Including the cities of South Lake Tahoe, Truckee, Stateline, 
and Incline Village
445 PM PDT Tue Mar 13 2018

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM PDT
WEDNESDAY...
...WINTER STORM WARNING IN EFFECT FROM 5 PM THURSDAY TO 5 AM PDT
SATURDAY...

* WHAT...Heavy snow occurring. Heavy snow expected. Additional
  snow accumulations of 5 to 8 inches, with localized amounts up
  to 16 inches, except 12 to 16 inches, with localized amounts up
  to 21 inches, above 7000 feet, are expected. Thursday into
  Friday night, additional snow accumulations of 10 to 20 inches
  at Lake Level with 2 to 3 feet above 7000 feet, are expected.

* WHERE...Greater Lake Tahoe Area.

* WHEN...For the Winter Storm Warning, until 11 AM PDT 
  Wednesday. For the Winter Storm Warning, from 5 PM Thursday to 
  5 AM PDT Saturday.

* ADDITIONAL DETAILS...Plan on difficult travel conditions,
  including during the evening commute. Damage to trees and power
  lines is possible. Be prepared for significant reductions in 
  visibility at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Avoid travel if possible, you could be stuck in your vehicle for
many hours. If you must travel, prepare for long delays and carry
an emergency kit with extra food, water and clothing. If you stay
home, have a backup plan in case of power outages. The latest
road conditions can be obtained by calling 5 1 1.


&&

$$

CAZ071-141145-
/O.UPG.KREV.WS.A.0005.180316T0000Z-180317T1200Z/
/O.NEW.KREV.WS.W.0005.180315T2100Z-180317T0600Z/
/O.CON.KREV.WW.Y.0010.000000T0000Z-180314T1800Z/
Lassen-Eastern Plumas-Eastern Sierra Counties-
Including the cities of Portola and Susanville
445 PM PDT Tue Mar 13 2018

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM PDT
WEDNESDAY...
...WINTER STORM WARNING IN EFFECT FROM 2 PM THURSDAY TO 11 PM PDT
FRIDAY...

* WHAT...Moderate to heavy snow is likely. Total snow
  accumulations of 2 to 4 inches are possible with locally higher
  amounts of 6 to 12 inches above 5000 feet tonight through
  Wednesday. The greatest amounts will be west of Highway 395.
  Thursday into Friday night, additional accumulations of 4 to 10
  inches are expected with higher amounts of 12 to 24 inches 
  above 5000 feet west of Highway 395.

* WHERE...Lassen-Eastern Plumas-Eastern Sierra Counties.

* WHEN...For the Winter Weather Advisory, from 1 PM this afternoon
  to 11 AM PDT Wednesday. For the Winter Storm Warning, from 4 PM
  Thursday through 10 PM Friday.

* ADDITIONAL DETAILS...Plan on slippery road conditions, including
  during the evening commute. Damage to trees and power lines is
  possible. Be prepared for reduced visibilities at times. Plan 
  on difficult travel conditions. Significant reductions in 
  visibility are possible.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Tonight and Wednesday: Even light snowfall causes major travel 
delays, especially during periods of high traffic volume. Be sure 
to allow extra time to reach your destination. Leave extra space 
between vehicles since it takes longer to stop on slick roadways. 
The latest road conditions can be obtained by calling 5 1 1.

Thursday into Friday: Avoid travel if possible, you could be 
stuck in your vehicle for many hours. If you must travel, prepare 
for long delays and carry an emergency kit with extra food, water 
and clothing. If you stay home, have a backup plan in case of 
power outages. The latest road conditions can be obtained by 
calling 5 1 1.

&&

$$

CAZ073-141145-
/O.EXT.KREV.WW.Y.0010.000000T0000Z-180315T0800Z/
/O.CON.KREV.WS.A.0005.180316T0000Z-180317T1200Z/
Mono County-
Including the cities of Bridgeport and Mammoth Lakes
445 PM PDT Tue Mar 13 2018

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 1 AM PDT
THURSDAY...
...WINTER STORM WATCH REMAINS IN EFFECT FROM THURSDAY AFTERNOON
THROUGH LATE FRIDAY NIGHT...

* WHAT...Moderate to heavy snow is expected. Tonight through
  Wednesday night: Total snow accumulations of 1 to 4 inches, 
  with locally higher amounts up to 8 inches west of Highway 395. 
  Above 8000 feet 6 to 12 inches is likely, with locally higher 
  amounts near 18 inches along the Sierra Crest. Additional snow 
  accumulations of 3 to 8 inches east of Highway 395 with 6 to 14 
  inches west of Highway 395 are possible for Thursday afternoon 
  through Saturday morning. Above 7000 feet amounts of 1 to 2 feet
  are possible.

* WHERE...Mono County.

* WHEN...For the Winter Weather Advisory, from 1 PM this 
  afternoon to 11 AM PDT Wednesday. For the Winter Storm Watch, 
  from Thursday afternoon through late Friday night.

* ADDITIONAL DETAILS...Plan on slippery road conditions. Tree 
  branches could fall. Be prepared for reduced visibilities at 
  times. Plan on difficult travel conditions, including during 
  the evening commute on Friday. Significant reductions in 
  visibility are possible.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Through Wednesday Night: Even light snowfall causes major travel 
delays, especially during periods of high traffic volume. Be sure 
to allow extra time to reach your destination. Leave extra space 
between vehicles since it takes longer to stop on slick roadways. 
The latest road conditions can be obtained by calling 5 1 1.

For Thursday into Friday: Now is the time to prepare an emergency
kit for your home and car. If traveling consider alternate plans,
remember to carry tire chains, extra food, water and clothing. 
Once the storm arrives, travel may be difficult or impossible for 
an extended period of time.

&&

$$

NVZ003-141145-
/O.CON.KREV.WS.A.0005.180316T0000Z-180317T1200Z/
Greater Reno-Carson City-Minden Area-
Including the cities of Sparks, Gardnerville, and Virginia City
445 PM PDT Tue Mar 13 2018

...WINTER STORM WATCH REMAINS IN EFFECT FROM THURSDAY AFTERNOON
THROUGH LATE FRIDAY NIGHT...

* WHAT...Moderate to heavy is snow possible. Total snow
  accumulations of 3 to 7 inches are possible. Above 5000 feet,
  amounts could reach 12 inches.

* WHERE...Greater Reno-Carson City-Minden Area.

* WHEN...From Thursday afternoon through late Friday night.

* ADDITIONAL DETAILS...Travel could become difficult due to icy 
  and snow covered roads. Timing and snow amounts are likely to 
  change as we get closer to the actual event.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Now is the time to prepare an emergency kit for your home and
car. If traveling consider alternate plans, remember to carry
tire chains, extra food, water and clothing. Once the storm
arrives, travel may be difficult or impossible for an extended
period of time.

&&

$$

http://www.weather.gov/reno
286 
WWUS45 KREV 140051
WSWREV

URGENT - WINTER WEATHER MESSAGE
National Weather Service Reno NV
551 PM PDT Tue Mar 13 2018

CAZ072-NVZ002-141300-
/O.CON.KREV.WS.W.0004.000000T0000Z-180314T1800Z/
/O.CON.KREV.WS.W.0005.180316T0000Z-180317T1200Z/
Greater Lake Tahoe Area-
Including the cities of South Lake Tahoe, Truckee, Stateline, 
and Incline Village
551 PM PDT Tue Mar 13 2018

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM PDT
WEDNESDAY...
...WINTER STORM WARNING REMAINS IN EFFECT FROM 5 PM THURSDAY TO
5 AM PDT SATURDAY...

* WHAT...Heavy snow occurring. Total snow accumulation of 4 to 8
  inches are expected at lake level, with higher amounts of 8 to
  14 inches west of Highway 89 through tonight. Above 7000 feet
  total accumulations of 10 to 20 inches are expected. For
  Thursday afternoon through Saturday morning, additional snow
  accumulations of 10 to 20 inches at lake level with 2 to 3 feet
  above 7000 feet, are expected.

* WHERE...Greater Lake Tahoe Area.

* WHEN...For the Winter Storm Warning, until 11 AM PDT 
  Wednesday. For the Winter Storm Warning, from 5 PM Thursday to 
  5 AM PDT Saturday.

* ADDITIONAL DETAILS...Plan on difficult travel conditions, 
  including during the evening commute. Be prepared for 
  significant reductions in visibility at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Avoid travel if possible, you could be stuck in your vehicle for
many hours. If you must travel, prepare for long delays and carry
an emergency kit with extra food, water and clothing. If you stay
home, have a backup plan in case of power outages. The latest
road conditions can be obtained by calling 5 1 1.

&&

$$

CAZ071-141300-
/O.CON.KREV.WS.W.0005.180315T2100Z-180317T0600Z/
/O.CON.KREV.WW.Y.0010.000000T0000Z-180314T1800Z/
Lassen-Eastern Plumas-Eastern Sierra Counties-
Including the cities of Portola and Susanville
551 PM PDT Tue Mar 13 2018

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM PDT
WEDNESDAY...
...WINTER STORM WARNING REMAINS IN EFFECT FROM 2 PM THURSDAY TO
11 PM PDT FRIDAY...

* WHAT...Snow occurring. Total snow accumulations of 2 to 4 inches
  are expected with locally higher amounts of 6 to 12 inches above
  5000 feet. The greatest amounts will be west of Highway 395.
  Additional snow accumulations of 4 to 10 inches are expected 
  with higher amounts of 12 to 22 inches above 5000 feet west of 
  Highway 395 Thursday afternoon through Saturday morning.

* WHERE...Lassen-Eastern Plumas-Eastern Sierra Counties.

* WHEN...For the Winter Weather Advisory, until 11 AM PDT
  Wednesday. For the Winter Storm Warning, from 2 PM Thursday to 
  11 PM PDT Friday. 

* ADDITIONAL DETAILS...Plan on difficult travel conditions. Be 
  prepared for significant reductions in visibility at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Avoid travel if possible, you could be stuck in your vehicle for
many hours. If you must travel, prepare for long delays and carry
an emergency kit with extra food, water and clothing. If you stay
home, have a backup plan in case of power outages. The latest
road conditions can be obtained by calling 5 1 1.

&&

$$

CAZ073-141300-
/O.CON.KREV.WW.Y.0010.000000T0000Z-180315T0800Z/
/O.CON.KREV.WS.A.0005.180316T0000Z-180317T1200Z/
Mono County-
Including the cities of Bridgeport and Mammoth Lakes
551 PM PDT Tue Mar 13 2018

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 1 AM PDT
THURSDAY...
...WINTER STORM WATCH REMAINS IN EFFECT FROM THURSDAY AFTERNOON
THROUGH LATE FRIDAY NIGHT...

* WHAT...Snow occurring. Total snow accumulations of 1 to 4
  inches, with locally higher amounts up to 8 inches west of
  Highway 395 are expected. Above 8000 feet 6 to 12 inches is
  expected, with locally higher amounts near 18 inches along the 
  Sierra Crest. Additional snow accumulations of 3 to 8 inches 
  east of Highway 395 with 6 to 14 inches west of Highway 395 are 
  possible for Thursday afternoon through Saturday morning. Above 
  7000 feet amounts of 1 to 2 feet are possible.

* WHERE...Mono County.

* WHEN...For the Winter Weather Advisory, until 1 AM PDT 
  Thursday. For the Winter Storm Watch, from Thursday afternoon 
  through late Friday night.

* ADDITIONAL DETAILS...Plan on difficult travel conditions. Be 
  prepared for significant reductions in visibility at times. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Avoid travel if possible, you could be stuck in your vehicle for
many hours. If you must travel, prepare for long delays and carry
an emergency kit with extra food, water and clothing. If you stay
home, have a backup plan in case of power outages. The latest
road conditions can be obtained by calling 5 1 1.

&&

$$

NVZ003-141300-
/O.CON.KREV.WS.A.0005.180316T0000Z-180317T1200Z/
Greater Reno-Carson City-Minden Area-
Including the cities of Sparks, Gardnerville, and Virginia City
551 PM PDT Tue Mar 13 2018

...WINTER STORM WATCH REMAINS IN EFFECT FROM THURSDAY AFTERNOON
THROUGH LATE FRIDAY NIGHT...

* WHAT...Heavy snow is possible. Total snow accumulations of 3 to
  7 inches are possible. Above 5000 feet, amounts up to 12 inches
  are possible.

* WHERE...Greater Reno-Carson City-Minden Area.

* WHEN...From Thursday afternoon through late Friday night.

* ADDITIONAL DETAILS...Travel could be very difficult and
  significant reductions in visibility are possible. Timing and 
  snow amounts may change as we get closer to the actual event.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Now is the time to prepare an emergency kit for your home and
car. If traveling consider alternate plans, remember to carry
tire chains, extra food, water and clothing. Once the storm
arrives, travel may be difficult or impossible for an extended
period of time.

&&

$$

http://www.weather.gov/reno
139 
WWUS45 KREV 141042
WSWREV

URGENT - WINTER WEATHER MESSAGE
National Weather Service Reno NV
342 AM PDT Wed Mar 14 2018

CAZ072-NVZ002-150000-
/O.EXT.KREV.WS.W.0004.000000T0000Z-180315T0600Z/
/O.CON.KREV.WS.W.0005.180316T0000Z-180317T1200Z/
Greater Lake Tahoe Area-
Including the cities of South Lake Tahoe, Truckee, Stateline, 
and Incline Village
342 AM PDT Wed Mar 14 2018

...WINTER STORM WARNING NOW IN EFFECT UNTIL 11 PM PDT THIS
EVENING...
...WINTER STORM WARNING REMAINS IN EFFECT FROM 5 PM THURSDAY TO
5 AM PDT SATURDAY...

* WHAT...Moderate to heavy snow expected. Additional snow
  accumulations today of 3 to 6 inches, with localized amounts up
  to 8 inches west of Highway 89. Above 7000 feet, additional
  accumulations 6 to 9 inches, with localized amounts of up to 12
  inches. For Thursday afternoon through early Saturday,
  additional snow accumulations of 12 to 20 inches at lake level 
  with 2 to 3 feet above 7000 feet.

* WHERE...Greater Lake Tahoe Area.

* WHEN...For the Winter Storm Warning, until 11 PM PDT this 
  evening. For the Winter Storm Warning, from 5 PM Thursday to 5 
  AM PDT Saturday.

* ADDITIONAL DETAILS...Plan on difficult travel conditions, 
  including during the morning commute. Be prepared for 
  significant reductions in visibility at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Avoid travel if possible, you could be stuck in your vehicle for
many hours. If you must travel, prepare for long delays and carry
an emergency kit with extra food, water and clothing. If you stay
home, have a backup plan in case of power outages. The latest
road conditions can be obtained by calling 5 1 1.

Avoid travel if possible, you could be stuck in your vehicle for
many hours. If you must travel, prepare for long delays and carry
an emergency kit with extra food, water and clothing. If you stay
home, have a backup plan in case of power outages. The latest
road conditions can be obtained by calling 5 1 1.

&&

$$

CAZ071-150000-
/O.CON.KREV.WS.W.0005.180315T2100Z-180317T0600Z/
/O.CON.KREV.WW.Y.0010.000000T0000Z-180314T1800Z/
Lassen-Eastern Plumas-Eastern Sierra Counties-
Including the cities of Portola and Susanville
342 AM PDT Wed Mar 14 2018

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM PDT THIS
MORNING...
...WINTER STORM WARNING REMAINS IN EFFECT FROM 2 PM THURSDAY TO
11 PM PDT FRIDAY...

* WHAT...Moderate to heavy snow expected. Additional accumulations
  today of 2 to 6 inches west of Highway 395, with up to 3 inches
  east of Highway 395. For Thursday afternoon through Friday
  night, additional snow accumulations of 4 to 10 inches with
  higher amounts of 10 to 20 inches above 5000 feet west of 
  Highway 395.

* WHERE...Lassen-Eastern Plumas-Eastern Sierra Counties.

* WHEN...For the Winter Storm Warning, from 2 PM Thursday to 11 
  PM PDT Friday. For the Winter Weather Advisory, until 11 AM 
  PDT this morning.

* ADDITIONAL DETAILS...Plan on difficult travel conditions, 
  including during the morning commute on Friday. Be prepared 
  for significant reductions in visibility at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Avoid travel if possible, you could be stuck in your vehicle for
many hours. If you must travel, prepare for long delays and carry
an emergency kit with extra food, water and clothing. If you stay
home, have a backup plan in case of power outages. The latest
road conditions can be obtained by calling 5 1 1.

Even light snowfall causes major travel delays, especially during
periods of high traffic volume. Be sure to allow extra time to
reach your destination. Leave extra space between vehicles since
it takes longer to stop on slick roadways. The latest road
conditions can be obtained by calling 5 1 1.

&&

$$

CAZ073-150000-
/O.CON.KREV.WW.Y.0010.000000T0000Z-180315T0800Z/
/O.CON.KREV.WS.A.0005.180316T0000Z-180317T1200Z/
Mono County-
Including the cities of Bridgeport and Mammoth Lakes
342 AM PDT Wed Mar 14 2018

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 1 AM PDT
THURSDAY...
...WINTER STORM WATCH REMAINS IN EFFECT FROM THURSDAY AFTERNOON
THROUGH LATE FRIDAY NIGHT...

* WHAT...Moderate to heavy snow expected. Additional snow
  accumulations today of 2 to 5 inches with 6 to 14 inches west of
  Highway 395 above 8000 feet. For Thursday afternoon through
  Saturday morning, additional snow accumulations of 3 to 9 inches
  east of Highway 395 with 6 to 12 inches west of Highway 395 and 18
  to 28 inches above 8000 feet are possible.

* WHERE...Mono County.

* WHEN...For the Winter Weather Advisory, until 1 AM PDT 
  Thursday. For the Winter Storm Watch, from Thursday afternoon 
  through late Friday night.

* ADDITIONAL DETAILS...Plan on slippery road conditions, 
  including during the morning commute. Be prepared for reduced 
  visibilities at times. Plan on difficult travel conditions, 
  including during the evening commute on Friday. Tree branches 
  could fall. Significant reductions in visibility are possible.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Even light snowfall causes major travel delays, especially during
periods of high traffic volume. Be sure to allow extra time to
reach your destination. Leave extra space between vehicles since
it takes longer to stop on slick roadways. The latest road
conditions can be obtained by calling 5 1 1.

Now is the time to prepare an emergency kit for your home and
car. If traveling consider alternate plans, remember to carry
tire chains, extra food, water and clothing. Once the storm
arrives, travel may be difficult or impossible for an extended
period of time.

&&

$$

NVZ003-150000-
/O.CON.KREV.WS.A.0005.180316T0000Z-180317T1200Z/
Greater Reno-Carson City-Minden Area-
Including the cities of Sparks, Gardnerville, and Virginia City
342 AM PDT Wed Mar 14 2018

...WINTER STORM WATCH REMAINS IN EFFECT FROM THURSDAY AFTERNOON
THROUGH LATE FRIDAY NIGHT...

* WHAT...Heavy snow possible. Total snow accumulations of 3 to 6
  inches are possible with the potential for 5 to 12 inches above
  5000 feet.

* WHERE...Greater Reno-Carson City-Minden Area.

* WHEN...From Thursday afternoon through late Friday night.

* ADDITIONAL DETAILS...Travel could be very difficult to 
  impossible, including during the morning commute on Friday. 
  Significant reductions in visibility are possible.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Now is the time to prepare an emergency kit for your home and
car. If traveling consider alternate plans, remember to carry
tire chains, extra food, water and clothing. Once the storm
arrives, travel may be difficult or impossible for an extended
period of time.

&&

$$

http://www.weather.gov/reno
581 
WWUS45 KREV 141758
WSWREV

URGENT - WINTER WEATHER MESSAGE
National Weather Service Reno NV
1058 AM PDT Wed Mar 14 2018

CAZ072-NVZ002-150600-
/O.CON.KREV.WS.W.0004.000000T0000Z-180315T0600Z/
/O.CON.KREV.WS.W.0005.180316T0000Z-180317T1200Z/
Greater Lake Tahoe Area-
Including the cities of South Lake Tahoe, Truckee, Stateline, 
and Incline Village
1058 AM PDT Wed Mar 14 2018

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 PM PDT THIS
EVENING...
...WINTER STORM WARNING REMAINS IN EFFECT FROM 5 PM THURSDAY TO
5 AM PDT SATURDAY...

* WHAT...Moderate to heavy snow expected. Additional snow 
  accumulations today of 3 to 6 inches, with localized amounts 
  up to 8 inches west of Highway 89. Above 7000 feet, additional 
  accumulations 6 to 9 inches, with localized amounts of up to 
  12 inches. For Thursday afternoon through early Saturday, 
  additional snow accumulations of 12 to 20 inches at lake level 
  with 2 to 3 feet above 7000 feet.

* WHERE...Greater Lake Tahoe Area.

* WHEN...For the Winter Storm Warning, until 11 PM PDT this 
  evening. For the Winter Storm Warning, from 5 PM Thursday to 5 
  AM PDT Saturday.

* ADDITIONAL DETAILS...Plan on difficult travel conditions. Be 
  prepared for significant reductions in visibility at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Avoid travel if possible, you could be stuck in your vehicle for
many hours. If you must travel, prepare for long delays and carry
an emergency kit with extra food, water and clothing. If you stay
home, have a backup plan in case of power outages. The latest
road conditions can be obtained by calling 5 1 1.

Avoid travel if possible, you could be stuck in your vehicle for
many hours. If you must travel, prepare for long delays and carry
an emergency kit with extra food, water and clothing. If you stay
home, have a backup plan in case of power outages. The latest
road conditions can be obtained by calling 5 1 1.

&&

$$

CAZ071-150600-
/O.EXT.KREV.WW.Y.0010.000000T0000Z-180315T0600Z/
/O.CON.KREV.WS.W.0005.180315T2100Z-180317T0600Z/
Lassen-Eastern Plumas-Eastern Sierra Counties-
Including the cities of Portola and Susanville
1058 AM PDT Wed Mar 14 2018

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 11 PM PDT THIS
EVENING...
...WINTER STORM WARNING REMAINS IN EFFECT FROM 2 PM THURSDAY TO
11 PM PDT FRIDAY...

* WHAT...Moderate to heavy snow expected. Additional 
  accumulations today of 2 to 4 inches west of Highway 395, with 
  up to 2 inches east of Highway 395. For Thursday afternoon 
  through Friday night, additional snow accumulations of 4 to 10 
  inches with higher amounts of 10 to 20 inches above 5000 feet 
  west of Highway 395.

* WHERE...Lassen-Eastern Plumas-Eastern Sierra Counties.

* WHEN...For the Winter Storm Warning, from 2 PM Thursday to 11 
  PM PDT Friday. For the Winter Weather Advisory, until 11 PM 
  PDT this evening.

* ADDITIONAL DETAILS...Plan on difficult travel conditions, 
  including during the morning commute on Friday. Be prepared 
  for significant reductions in visibility at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Avoid travel if possible, you could be stuck in your vehicle for
many hours. If you must travel, prepare for long delays and carry
an emergency kit with extra food, water and clothing. If you stay
home, have a backup plan in case of power outages. The latest
road conditions can be obtained by calling 5 1 1.

&&

$$

CAZ073-150600-
/O.CON.KREV.WW.Y.0010.000000T0000Z-180315T0800Z/
/O.CON.KREV.WS.A.0005.180316T0000Z-180317T1200Z/
Mono County-
Including the cities of Bridgeport and Mammoth Lakes
1058 AM PDT Wed Mar 14 2018

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 1 AM PDT
THURSDAY...
...WINTER STORM WATCH REMAINS IN EFFECT FROM THURSDAY AFTERNOON
THROUGH LATE FRIDAY NIGHT...

* WHAT...Moderate to heavy snow expected. Additional snow 
  accumulations today of 2 to 5 inches with 6 to 14 inches west 
  of Highway 395 above 8000 feet. For Thursday afternoon through 
  Saturday morning, additional snow accumulations of 3 to 9 
  inches east of Highway 395 with 6 to 12 inches west of Highway 
  395 and 18 to 28 inches above 8000 feet are possible.

* WHERE...Mono County.

* WHEN...For the Winter Weather Advisory, until 1 AM PDT 
  Thursday. For the Winter Storm Watch, from Thursday afternoon 
  through late Friday night.

* ADDITIONAL DETAILS...Plan on slippery road conditions. Be 
  prepared for reduced visibilities at times. Plan on difficult 
  travel conditions, including during the evening commute on 
  Friday. Tree branches could fall. Significant reductions in 
  visibility are possible.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Even light snowfall causes major travel delays, especially during
periods of high traffic volume. Be sure to allow extra time to
reach your destination. Leave extra space between vehicles since
it takes longer to stop on slick roadways. The latest road
conditions can be obtained by calling 5 1 1.

Now is the time to prepare an emergency kit for your home and
car. If traveling consider alternate plans, remember to carry
tire chains, extra food, water and clothing. Once the storm
arrives, travel may be difficult or impossible for an extended
period of time.

&&

$$

NVZ003-150600-
/O.CON.KREV.WS.A.0005.180316T0000Z-180317T1200Z/
Greater Reno-Carson City-Minden Area-
Including the cities of Sparks, Gardnerville, and Virginia City
1058 AM PDT Wed Mar 14 2018

...WINTER STORM WATCH REMAINS IN EFFECT FROM THURSDAY AFTERNOON
THROUGH LATE FRIDAY NIGHT...

* WHAT...Heavy snow possible. Total snow accumulations of 3 to 6 
  inches are possible with the potential for 5 to 12 inches 
  above 5000 feet.

* WHERE...Greater Reno-Carson City-Minden Area.

* WHEN...From Thursday afternoon through late Friday night.

* ADDITIONAL DETAILS...Travel could be very difficult to 
  impossible, including during the morning commute on Friday. 
  Significant reductions in visibility are possible.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Now is the time to prepare an emergency kit for your home and
car. If traveling consider alternate plans, remember to carry
tire chains, extra food, water and clothing. Once the storm
arrives, travel may be difficult or impossible for an extended
period of time.

&&

$$

http://www.weather.gov/reno
018 
WWUS45 KREV 142141
WSWREV

URGENT - WINTER WEATHER MESSAGE
National Weather Service Reno NV
241 PM PDT Wed Mar 14 2018

CAZ072-NVZ002-151300-
/O.CON.KREV.WS.W.0004.000000T0000Z-180315T0600Z/
/O.CON.KREV.WS.W.0005.180316T0000Z-180317T1200Z/
Greater Lake Tahoe Area-
Including the cities of South Lake Tahoe, Truckee, Stateline, 
and Incline Village
241 PM PDT Wed Mar 14 2018

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 PM PDT THIS
EVENING...
...WINTER STORM WARNING REMAINS IN EFFECT FROM 5 PM THURSDAY TO
5 AM PDT SATURDAY...

* WHAT...Moderate to heavy snow expected. Additional snow
  accumulations today of up to 3 inches. Above 7000 feet,
  additional accumulations 3 to 6 inches, with localized amounts
  of up to 9 inches. For Thursday afternoon through early 
  Saturday, additional snow accumulations of 12 to 24 inches at 
  lake level with 2 to 3 feet above 7000 feet.

* WHERE...Greater Lake Tahoe Area.

* WHEN...For the Winter Storm Warning, until 11 PM PDT this 
  evening. For the Winter Storm Warning, from 5 PM Thursday to 5 
  AM PDT Saturday.

* ADDITIONAL DETAILS...Plan on difficult travel conditions. Be 
  prepared for significant reductions in visibility at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Avoid travel if possible, you could be stuck in your vehicle for
many hours. If you must travel, prepare for long delays and carry
an emergency kit with extra food, water and clothing. If you stay
home, have a backup plan in case of power outages. The latest
road conditions can be obtained by calling 5 1 1.

&&

$$

CAZ071-151300-
/O.CON.KREV.WS.W.0005.180315T2100Z-180317T0600Z/
/O.CON.KREV.WW.Y.0010.000000T0000Z-180315T0600Z/
Lassen-Eastern Plumas-Eastern Sierra Counties-
Including the cities of Portola and Susanville
241 PM PDT Wed Mar 14 2018

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM PDT THIS
EVENING...
...WINTER STORM WARNING REMAINS IN EFFECT FROM 2 PM THURSDAY TO
11 PM PDT FRIDAY...

* WHAT...Moderate to heavy snow expected. Additional accumulations
  today of 1 to 3 inches west of Highway 395, with up to 1 inch 
  east of Highway 395. For Thursday afternoon through Friday 
  night, additional snow accumulations of 4 to 10 inches with 
  higher amounts of 10 to 20 inches above 5000 feet west of 
  Highway 395.

* WHERE...Lassen-Eastern Plumas-Eastern Sierra Counties.

* WHEN...For the Winter Storm Warning, from 2 PM Thursday to 11 
  PM PDT Friday. For the Winter Weather Advisory, until 11 PM 
  PDT this evening.

* ADDITIONAL DETAILS...Plan on difficult travel conditions, 
  including during the morning commute on Friday. Be prepared 
  for significant reductions in visibility at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Even light snowfall causes major travel delays, especially during
periods of high traffic volume. Be sure to allow extra time to 
reach your destination. Leave extra space between vehicles since 
it takes longer to stop on slick roadways. The latest road 
conditions can be obtained by calling 5 1 1.

&&

$$

CAZ073-151300-
/O.CON.KREV.WW.Y.0010.000000T0000Z-180315T0800Z/
/O.CON.KREV.WS.A.0005.180316T0000Z-180317T1200Z/
Mono County-
Including the cities of Bridgeport and Mammoth Lakes
241 PM PDT Wed Mar 14 2018

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 1 AM PDT
THURSDAY...
...WINTER STORM WATCH REMAINS IN EFFECT FROM THURSDAY AFTERNOON
THROUGH LATE FRIDAY NIGHT...

* WHAT...Moderate to heavy snow expected. Additional snow
  accumulations today of 2 to 4 inches with 4 to 8 inches west of
  Highway 395 above 8000 feet. For Thursday afternoon through 
  Saturday morning, additional snow accumulations of 3 to 9 inches
  east of Highway 395 with 6 to 12 inches west of Highway 395 and
  18 to 28 inches above 8000 feet are possible.

* WHERE...Mono County.

* WHEN...For the Winter Weather Advisory, until 1 AM PDT 
  Thursday. For the Winter Storm Watch, from Thursday afternoon 
  through late Friday night.

* ADDITIONAL DETAILS...Plan on slippery road conditions. Be 
  prepared for reduced visibilities at times. Plan on difficult 
  travel conditions, including during the evening commute on 
  Friday. Tree branches could fall. Significant reductions in 
  visibility are possible.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Even light snowfall causes major travel delays, especially during
periods of high traffic volume. Be sure to allow extra time to
reach your destination. Leave extra space between vehicles since
it takes longer to stop on slick roadways. The latest road
conditions can be obtained by calling 5 1 1.

&&

$$

NVZ003-151300-
/O.CON.KREV.WS.A.0005.180316T0000Z-180317T1200Z/
Greater Reno-Carson City-Minden Area-
Including the cities of Sparks, Gardnerville, and Virginia City
241 PM PDT Wed Mar 14 2018

...WINTER STORM WATCH REMAINS IN EFFECT FROM THURSDAY AFTERNOON
THROUGH LATE FRIDAY NIGHT...

* WHAT...Heavy snow possible. Total snow accumulations of 3 to 6 
  inches are possible with the potential for 5 to 12 inches 
  above 5000 feet.

* WHERE...Greater Reno-Carson City-Minden Area.

* WHEN...From Thursday afternoon through late Friday night.

* ADDITIONAL DETAILS...Travel could be very difficult to 
  impossible, including during the morning commute on Friday. 
  Significant reductions in visibility are possible.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Now is the time to prepare an emergency kit for your home and
car. If traveling consider alternate plans, remember to carry
tire chains, extra food, water and clothing. Once the storm
arrives, travel may be difficult or impossible for an extended
period of time.

&&

$$

http://www.weather.gov/reno
200 
WWUS45 KREV 150432
WSWREV

URGENT - WINTER WEATHER MESSAGE
National Weather Service Reno NV
932 PM PDT Wed Mar 14 2018

CAZ072-NVZ002-151200-
/O.CAN.KREV.WS.W.0004.000000T0000Z-180315T0600Z/
/O.EXT.KREV.WS.W.0005.180315T2100Z-180317T1200Z/
Greater Lake Tahoe Area-
Including the cities of South Lake Tahoe, Truckee, Stateline, and
Incline Village
932 PM PDT Wed Mar 14 2018

...WINTER STORM WARNING NOW IN EFFECT FROM 2 PM THURSDAY TO 5 AM
PDT SATURDAY...
...WINTER STORM WARNING FOR THIS EVENING IS CANCELLED...

* WHAT...Moderate to heavy snow expected. For Thursday afternoon 
  through early Saturday, additional snow accumulations of 12 to 
  24 inches at lake level with 2 to 3 feet above 7000 feet.

* WHERE...Greater Lake Tahoe Area.

* WHEN...From 2 PM Thursday to 5 AM PDT Saturday. Heaviest snow is
  most likely Thursday evening through Friday afternoon. Gusty
  winds could produce whiteout conditions especially in higher
  elevations Thursday evening and night. 

* ADDITIONAL DETAILS...Plan on hazardous travel conditions
  starting Thursday afternoon and continuing through Friday
  including the Friday morning and evening commutes. Be prepared 
  for significant reductions in visibility at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Avoid travel if possible, you could be stuck in your vehicle for
many hours. If you must travel, prepare for long delays and carry
an emergency kit with extra food, water and clothing. If you stay
home, have a backup plan in case of power outages. The latest
road conditions can be obtained by calling 5 1 1.

&&

$$

CAZ071-151200-
/O.CAN.KREV.WW.Y.0010.000000T0000Z-180315T0600Z/
/O.CON.KREV.WS.W.0005.180315T2100Z-180317T0600Z/
Lassen-Eastern Plumas-Eastern Sierra Counties-
Including the cities of Portola and Susanville
932 PM PDT Wed Mar 14 2018

...WINTER STORM WARNING REMAINS IN EFFECT FROM 2 PM THURSDAY TO
11 PM PDT FRIDAY...
...WINTER WEATHER ADVISORY FOR THIS EVENING IS CANCELLED...

* WHAT...Moderate to heavy snow expected. For Thursday afternoon 
  through Friday night, additional snow accumulations of 4 to 10 
  inches with higher amounts of 10 to 20 inches above 5000 feet 
  west of Highway 395.

* WHERE...Lassen-Eastern Plumas-Eastern Sierra Counties.

* WHEN...From 2 PM Thursday to 11 PM PDT Friday. Heaviest snow is
  most likely Thursday evening through midday Friday. Gusty winds
  could produce whiteout conditions in higher elevations Thursday
  evening and night. 

* ADDITIONAL DETAILS...Plan on hazardous travel conditions
  starting Thursday afternoon and continuing through Friday,
  including the Friday morning and evening commutes. Be prepared 
  for significant reductions in visibility at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Avoid travel if possible, you could be stuck in your vehicle for
many hours. If you must travel, prepare for long delays and carry
an emergency kit with extra food, water and clothing. If you stay
home, have a backup plan in case of power outages. The latest
road conditions can be obtained by calling 5 1 1.

&&

$$

CAZ073-151200-
/O.CAN.KREV.WW.Y.0010.000000T0000Z-180315T0800Z/
/O.CON.KREV.WS.A.0005.180316T0000Z-180317T1200Z/
Mono County-
Including the cities of Bridgeport and Mammoth Lakes
932 PM PDT Wed Mar 14 2018

...WINTER STORM WATCH REMAINS IN EFFECT FROM THURSDAY AFTERNOON
THROUGH LATE FRIDAY NIGHT...
...WINTER WEATHER ADVISORY FOR THIS EVENING IS CANCELLED...

* WHAT...Heavy snow possible. For Thursday afternoon through 
  Saturday morning, additional snow accumulations of 3 to 9 inches
  east of Highway 395, with 6 to 12 inches west of Highway 395 
  and 18 to 28 inches above 8000 feet are possible.

* WHERE...Mono County.

* WHEN...From Thursday afternoon through late Friday night.
  Heaviest snow most likely from late Thursday evening through
  Friday evening. 

* ADDITIONAL DETAILS...Plan on hazardous travel conditions, 
  including the Friday morning and evening commutes. Significant 
  reductions in visibility are possible. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Now is the time to prepare an emergency kit for your home and
car. If traveling consider alternate plans, remember to carry
tire chains, extra food, water and clothing. Once the storm
arrives, travel may be difficult or impossible for an extended
period of time.

&&

$$

NVZ003-151200-
/O.CON.KREV.WS.A.0005.180316T0000Z-180317T1200Z/
Greater Reno-Carson City-Minden Area-
Including the cities of Sparks, Gardnerville, and Virginia City
932 PM PDT Wed Mar 14 2018

...WINTER STORM WATCH REMAINS IN EFFECT FROM THURSDAY AFTERNOON
THROUGH LATE FRIDAY NIGHT...

* WHAT...Heavy snow possible. Total snow accumulations of 3 to 6 
  inches are possible with the potential for 5 to 12 inches 
  above 5000 feet.

* WHERE...Greater Reno-Carson City-Minden Area.

* WHEN...From Thursday afternoon through late Friday night.

* ADDITIONAL DETAILS...Travel could become very difficult at times,
  including the Friday morning and evening commutes. Significant 
  reductions in visibility are possible.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Now is the time to prepare an emergency kit for your home and
car. If traveling consider alternate plans, remember to carry
tire chains, extra food, water and clothing. Once the storm
arrives, travel may be difficult or impossible for an extended
period of time.

&&

$$

http://www.weather.gov/reno

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 Reno, NV wrote its last area forecast discussion before this winter storm warning went out at Mar 12, 2:14 PM PDT, 11 minutes earlier.

Area forecast discussion, Mar 12, 2:14 PM PDT, 11 minutes before
Area Forecast Discussion
National Weather Service Reno NV
214 PM PDT Mon Mar 12 2018

.SYNOPSIS...

A series of winter storms will produce unsettled conditions
through the upcoming week. The first storm will bring gusty
winds, rain and snow Tuesday into Wednesday. A colder storm is
becoming more likely from Thursday into Saturday, producing
additional periods of heavy snow in the Sierra with some snow
accumulation also possible for lower elevations.

&&

.SHORT TERM...

Main change for the short term is upgrading the Tahoe zone to a
Winter Storm Warning as travel impacts will be more significant
over the Sierra passes from mid-afternoon Tuesday through
Wednesday morning. We increased snowfall amounts for the CA side
of the Tahoe zone for up to 2 feet above 7000 feet along the
crest, and around 1 foot below 7000 feet near and west of Highway
89 by Wednesday morning. The NV side of the Tahoe zone is not
expected to receive as much snow (roughly half of the CA side) but
we'll highlight the snowfall differences in the warning text.

Otherwise, we will keep advisories going for northeast CA and
Mono County (best snow potential from US-395 westward in both
areas), where snow totals are not expected to be as large. Still,
the main takeaways are to expect a rapid worsening of conditions
by mid-late Tuesday afternoon as snow levels drop from around 8000
feet to near 6000-6500 feet, as precip initially near the crest
pushes farther east. For Tuesday night, travel in the Sierra and
higher elevations of northeast CA will be hazardous with periods
of heavy snow and poor visibility.

Other highlights/impacts of this storm include:

Winds...Gusts increasing to 35-45 mph across much of western NV by
Tuesday afternoon, with the strongest winds shifting to areas
south of US-50 by Tuesday evening. Sierra ridge gusts could reach
80-90 mph. We will include a Lake Wind Advisory for Pyramid Lake
for Tuesday afternoon through dusk.

Thunder...A few thunderstorms could develop in northwest NV and
the West Central NV Basin and Range Tuesday afternoon/early evening
as daytime heating well into the 60s (possibly reaching 70 in a
few sites) will produce some instability with steep mid level
lapse rates expected in advance of a cold front.

Lower elevation rain/snow...Snow levels will drop by late Tuesday
night for northwest NV and early Wednesday morning across western
NV mainly west of US-95. The post-frontal air mass is not very
cold, so even though snow may fall down to near 4500-5000 feet,
accumulation is unlikely on paved surfaces below 5000 feet. Above
5000 feet, up to 2" of snow could accumulate early Wednesday with
patchy slush possible on roads. Precipitation amounts in Western
NV will generally be light--less than 0.25" except in Douglas
County and from Fallon-Lovelock eastward where some of these areas
could receive up to 0.50 inch.

A short break in the precip Wednesday morning looks to be followed
by a secondary shortwave during the afternoon and evening.
Additional light to moderate snow could fall in the eastern Sierra
and northeast CA, with a light rain-snow mix spreading into
Western NV. The track of this wave varies among the model
guidance, with some scenarios favoring areas from Tahoe northward,
while others bring better precip chances farther south for Mono
County. Overall, some travel impacts are likely in the Sierra and
possibly into foothill locations by early Wednesday evening, while
for lower valleys there is less potential for snow accumulating
or freezing on roads through Wednesday night. MJD

.LONG TERM...Thursday through Monday...

The focus continues to be on the wet weather through Friday night.
More good news this afternoon...the models are coming into better
agreement with a potent system sometime Thursday into Saturday
morning. While there is now high confidence that we will see some
heavy snow in the mountains and possibly into Western NV, the timing
remains fuzzy.

The GFS shows it beginning Thursday afternoon with it lasting
through the day Friday with heavy snow into the Sierra Front of
Western NV. The EC delays it 12 hours while the NAM is in between.
Also, the GFS shows rather heavy amounts as it keeps it pivoting
over the I-80/Highway 50 corridors. The GFS seems a worst case
scenario, so will lean more toward an EC idea for amounts, but blend
the timing. Looking like another 2+ feet in the higher elevations of
the Sierra above 7000 feet with significant accumulations in the
lower elevations more likely. At this point, expect poor travel
conditions anytime from Thursday into Saturday morning, especially
in the mountains.

Over the weekend, the low only slowly pulls away. Instability snow
showers are likely Saturday and possibly into Sunday. With it being
mid-March, thunderstorms are possible near the Sierra Crest and also
in the Basin and Range. I have not put them in the official forecast
yet, but it may be added in the near future.

Monday looks drier, but the GFS is showing another system dropping
off the coast while the EC is farther west. While either is
plausible, I am leaning toward the EC which makes sense due to the
upstream pattern (more amplified ridge with an AR on the west
side) and time of year. Thus, I am showing a bit of a break as
there will likely be a 24-48 hour period of drying out before the
next trough moves in. X

&&

.AVIATION...

VFR through 18Z Tuesday with increasing winds overnight. South
winds aloft will increase, but expect the valleys to take a little
longer which could result in LLWS (speed, not cross winds) for
terminals after 08-09Z. Regardless, mtn wave turbulence will
occur tonight through Tuesday night. Any LLWS will diminish by 18Z
Tue as the valleys mix out.

Precip then moves in after 18Z Tue with IFR conds in the Sierra
through at least 12Z Wed due to RA changing to SN. Runway
accumulation of up to 6" at KTRK, KTVL and KMMH likely. A brief
period of MVFR CIGS during -RA in KRNO/KCXP/KMEV 00-06Z Wed.
Improving conditions Wed, at least for the lower elevation
terminals, but more IFR conditions are likely late Thursday into
Friday as another potent wave moves through. X

&&

.REV Watches/Warnings/Advisories...
NV...Winter Storm Warning from 1 PM Tuesday to 11 AM PDT Wednesday
     NVZ002.

     Lake Wind Advisory from noon to 7 PM PDT Tuesday for Pyramid
     Lake in NVZ004.

CA...Winter Weather Advisory from 1 PM Tuesday to 11 AM PDT Wednesday
     CAZ071.

     Winter Weather Advisory from 1 PM Tuesday to 11 AM PDT Wednesday
     CAZ073.

     Winter Storm Warning from 1 PM Tuesday to 11 AM PDT Wednesday
     CAZ072.

&&

For more information from the National Weather Service visit...
http://weather.gov/reno

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 12, 2:54 AM PDTWinter Weather AdvisoryREVDouglas, Washoe67 hr
Mar 12, 2:12 PM PDTLake Wind AdvisoryREVChurchill, Lyon, Pershing, Washoe29 hr

Nearby

Winter Storm Warnings in California, 2018Winter Storm Warnings in Nevada, 2018Every winter storm warning in 2018

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.