451
FNUS55 KREV 211315
FWFREV
FIRE WEATHER PLANNING FORECAST
NATIONAL WEATHER SERVICE RENO NV
515 AM PST SAT DEC 21 2024
DISCUSSION
GUSTY SOUTHWEST TO WEST WINDS WILL DEVELOP IN THE SIERRA AND SIERRA
FRONT TODAY. PERIODS OF LIGHT RAIN AND HIGH ELEVATION SNOW EXPECTED
THROUGH SUNDAY. A STRONGER WINTER STORM WILL BRING GUSTY WINDS, VALLEY
RAIN, AND HEAVIER MOUNTAIN SNOW ON TUESDAY WITH ADDITIONAL STORMS
POSSIBLE LATE NEXT WEEK.
NOTE: THUNDERSTORMS IMPLY GUSTY AND ERRATIC WINDS.
NOTE: MIXING HEIGHTS ARE IN FEET ABOVE GROUND LEVEL OF THE VALLEY FLOORS.
NOTE: PLEASE SEE OPERATING PLAN FOR DETAILED ZONE DESCRIPTIONS
HTTPS://WWW.WEATHER.GOV/WRH/FIRE?WFO=REV
NVZ420-220015-
NORTHERN SIERRA FRONT INCLUDING CARSON CITY, DOUGLAS, STOREY,
SOUTHERN WASHOE, WESTERN LYON, AND FAR SOUTHERN LASSEN COUNTIES-
515 AM PST SAT DEC 21 2024
..WIND ADVISORY IN EFFECT UNTIL 4 PM PST THIS AFTERNOON
TODAY
* SKY/WEATHER........MOSTLY CLOUDY. ISOLATED SHOWERS IN THE
AFTERNOON.
* MAX TEMPERATURE....
* VALLEYS..........49-59.
* MID SLOPE........45-55.
* 24 HR TREND......LITTLE CHANGE.
* MIN HUMIDITY.......
* VALLEYS..........35-45%.
* MID SLOPE........34-44%.
* 24 HR TREND......LITTLE CHANGE.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....SOUTH WINDS 10 TO 15 MPH WITH GUSTS TO 35 MPH
INCREASING TO SOUTHWEST 15 TO 25 MPH WITH
GUSTS TO 45 MPH IN THE AFTERNOON.
* RIDGE TOP........SOUTHWEST WINDS 20 TO 35 MPH. GUSTS TO 60 MPH
INCREASING TO 85 MPH IN THE LATE MORNING AND
AFTERNOON.
* HAINES INDEX.......2-3.
* LAL................1.
* CHC WETTING RAIN...5%.
* MIXING HEIGHT......600-1100 FT AGL INCREASING TO 1600-2600 FT AGL
IN THE AFTERNOON.
* TRANSPORT WINDS....SOUTH 10 TO 20 MPH INCREASING TO SOUTHWEST 25
TO 35 MPH IN THE AFTERNOON.
* VENTILATION........FAIR INCREASING TO EXCELLENT IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER........CLOUDY. CHANCE OF SHOWERS AFTER MIDNIGHT.
* MIN TEMPERATURE....
* VALLEYS..........31-41.
* MID SLOPE........34-41.
* 24 HR TREND......LITTLE CHANGE.
* MAX HUMIDITY.......
* VALLEYS..........84-94%.
* MID SLOPE........73-83%.
* 24 HR TREND......12% WETTER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....DOWNSLOPE 2 TO 5 MPH.
* RIDGE TOP........SOUTHWEST WINDS 10 TO 20 MPH. GUSTS TO 60 MPH
DECREASING TO 30 TO 40 MPH IN THE MORNING.
* HAINES INDEX.......2.
* LAL................1.
* CHC WETTING RAIN...10%.
* MIXING HEIGHT......600-1000 FT AGL IN THE EVENING THEN 200-500 FT
AGL.
* TRANSPORT WINDS....SOUTHWEST 10 TO 15 MPH IN THE EVENING BECOMING
LIGHT.
* VENTILATION........FAIR.
SUNDAY
* SKY/WEATHER........CLOUDY. CHANCE OF SHOWERS.
* MAX TEMPERATURE....
* VALLEYS..........47-57.
* MID SLOPE........43-53.
* MIN HUMIDITY.......
* VALLEYS..........55-65%.
* MID SLOPE........57-67%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH BECOMING SOUTHWEST 8 TO 12
MPH IN THE AFTERNOON.
* RIDGE TOP........SOUTHWEST WINDS 10 TO 15 MPH WITH GUSTS TO 45
MPH.
* HAINES INDEX.......2.
* LAL................1.
* CHC WETTING RAIN...25%.
* MIXING HEIGHT......600-900 FT AGL INCREASING TO 1200-1700 FT AGL
IN THE AFTERNOON.
* TRANSPORT WINDS....LIGHT WINDS BECOMING SOUTHWEST 10 TO 15 MPH IN
THE AFTERNOON.
* VENTILATION........MARGINAL INCREASING TO GOOD IN THE AFTERNOON.
EXTENDED
SUNDAY NIGHT
MOSTLY CLOUDY. CHANCE OF SHOWERS. LOWS 30-40.
SOUTHWEST WINDS 7 TO 12 MPH UNTIL EARLY MORNING BECOMING DOWNSLOPE
2 TO 5 MPH.
MONDAY
MOSTLY CLOUDY. HIGHS 49-57. LOWS 30-40. SLOPE WINDS.
TUESDAY
RAIN AND A SLIGHT CHANCE OF SNOW. HIGHS 45-53. LOWS
16-26. SOUTHWEST WINDS 15 TO 25 MPH.
CHRISTMAS DAY
MOSTLY CLOUDY. HIGHS 40-48. LOWS 16-26. SLOPE
WINDS.
THURSDAY THROUGH FRIDAY
MOSTLY CLOUDY. CHANCE OF RAIN AND SNOW.
HIGHS 44-52. LOWS 22-32.
NVZ421-220015-
SOUTHERN SIERRA FRONT INCLUDING ALPINE, NORTHERN MONO, SOUTHERN
LYON, AND WESTERN MINERAL COUNTIES-
515 AM PST SAT DEC 21 2024
..WIND ADVISORY IN EFFECT UNTIL 4 PM PST THIS AFTERNOON
TODAY
* SKY/WEATHER........PARTLY CLOUDY. ISOLATED SNOW SHOWERS IN THE
AFTERNOON.
* MAX TEMPERATURE....
* VALLEYS..........48-58.
* MID SLOPE........42-52.
* 24 HR TREND......LITTLE CHANGE.
* MIN HUMIDITY.......
* VALLEYS..........28-38%.
* MID SLOPE........29-39%.
* 24 HR TREND......LITTLE CHANGE.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....SOUTH WINDS 10 TO 15 MPH WITH GUSTS TO 35 MPH
INCREASING TO 20 TO 30 MPH WITH GUSTS TO 50
MPH IN THE LATE MORNING AND AFTERNOON.
* RIDGE TOP........SOUTHWEST WINDS 30 TO 45 MPH. GUSTS TO 75 MPH
INCREASING TO 100 MPH IN THE LATE MORNING AND
AFTERNOON.
* HAINES INDEX.......3.
* LAL................1.
* CHC WETTING RAIN...5%.
* MIXING HEIGHT......600-1100 FT AGL INCREASING TO 1300-1800 FT AGL
IN THE AFTERNOON.
* TRANSPORT WINDS....SOUTHWEST 20 TO 30 MPH.
* VENTILATION........GOOD INCREASING TO VERY GOOD IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER........MOSTLY CLOUDY. CHANCE OF SHOWERS AFTER
MIDNIGHT.
* MIN TEMPERATURE....
* VALLEYS..........27-37.
* MID SLOPE........32-42.
* 24 HR TREND......LITTLE CHANGE.
* MAX HUMIDITY.......
* VALLEYS..........76-86%.
* MID SLOPE........60-70%.
* 24 HR TREND......47% WETTER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....SOUTH WINDS 10 TO 15 MPH. GUSTS TO 35 MPH IN THE
EVENING.
* RIDGE TOP........SOUTHWEST WINDS 20 TO 30 MPH. GUSTS TO 75 MPH
DECREASING TO 60 MPH IN THE MORNING.
* HAINES INDEX.......2.
* LAL................1.
* CHC WETTING RAIN...25%.
* MIXING HEIGHT......600-800 FT AGL IN THE EVENING THEN 200-500 FT
AGL.
* TRANSPORT WINDS....SOUTHWEST 10 TO 15 MPH.
* VENTILATION........FAIR.
SUNDAY
* SKY/WEATHER........SNOW SHOWERS IN THE MORNING, THEN CHANCE OF
SHOWERS IN THE AFTERNOON.
* MAX TEMPERATURE....
* VALLEYS..........46-56.
* MID SLOPE........40-50.
* MIN HUMIDITY.......
* VALLEYS..........51-61%.
* MID SLOPE........49-59%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH BECOMING SOUTHWEST 8 TO 12
MPH WITH GUSTS TO 20 MPH IN THE AFTERNOON.
* RIDGE TOP........SOUTHWEST WINDS 15 TO 25 MPH WITH GUSTS TO 60
MPH INCREASING TO 25 TO 40 MPH WITH GUSTS TO
60 MPH IN THE AFTERNOON.
* HAINES INDEX.......2.
* LAL................1.
* CHC WETTING RAIN...40%.
* MIXING HEIGHT......600-800 FT AGL INCREASING TO 1200-1700 FT AGL
IN THE AFTERNOON.
* TRANSPORT WINDS....SOUTHWEST 10 TO 15 MPH.
* VENTILATION........FAIR INCREASING TO GOOD IN THE AFTERNOON.
EXTENDED
SUNDAY NIGHT
MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS IN THE
EVENING. CHANCE OF SNOW SHOWERS AFTER MIDNIGHT. LOWS 26-36.
SOUTHWEST WINDS 7 TO 12 MPH UNTIL EARLY MORNING BECOMING DOWNSLOPE
2 TO 5 MPH.
MONDAY
MOSTLY CLOUDY. HIGHS 48-58. LOWS 26-36. SOUTH WINDS 10 TO
15 MPH.
TUESDAY
MOSTLY CLOUDY. CHANCE OF RAIN AND SNOW. HIGHS 43-53. LOWS
11-21. SOUTHWEST WINDS 15 TO 25 MPH.
CHRISTMAS DAY
PARTLY CLOUDY. SLIGHT CHANCE OF SNOW. HIGHS 40-48.
LOWS 11-21. SLOPE WINDS.
THURSDAY
SNOW LIKELY AND A CHANCE OF RAIN. HIGHS 42-52. LOWS
19-29.
FRIDAY
MOSTLY CLOUDY. CHANCE OF SNOW AND RAIN. HIGHS 43-53.
CAZ272-220015-
GREATER LAKE TAHOE AND TRUCKEE AREA-
515 AM PST SAT DEC 21 2024
..WIND ADVISORY IN EFFECT UNTIL 4 PM PST THIS AFTERNOON
TODAY
* SKY/WEATHER........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
SCATTERED SHOWERS THROUGH THE AFTERNOON.
* MAX TEMPERATURE....
* VALLEYS..........42-48.
* MID SLOPE........37-45.
* 24 HR TREND......5 DEGREES COOLER.
* MIN HUMIDITY.......
* VALLEYS..........51-61%.
* MID SLOPE........42-52%.
* 24 HR TREND......9% WETTER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....SOUTHWEST WINDS 20 TO 35 MPH. GUSTS TO 40 MPH
INCREASING TO 50 MPH IN THE LATE MORNING AND
AFTERNOON.
* RIDGE TOP........SOUTHWEST WINDS 35 TO 50 MPH WITH GUSTS TO 80
MPH INCREASING TO 50 TO 70 MPH WITH GUSTS TO
110 MPH IN THE LATE MORNING AND AFTERNOON.
* HAINES INDEX.......2.
* LAL................1.
* CHC WETTING RAIN...40%.
* MIXING HEIGHT......900-1400 FT AGL.
* TRANSPORT WINDS....SOUTHWEST 25 TO 35 MPH INCREASING TO 35 TO 45
MPH IN THE AFTERNOON.
* VENTILATION........GOOD INCREASING TO EXCELLENT IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER........CLOUDY. CHANCE OF SHOWERS.
* MIN TEMPERATURE....
* VALLEYS..........28-38.
* MID SLOPE........29-37.
* 24 HR TREND......LITTLE CHANGE.
* MAX HUMIDITY.......
* VALLEYS..........94-100%.
* MID SLOPE........84-94%.
* 24 HR TREND......4% WETTER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....SOUTHWEST WINDS 10 TO 20 MPH WITH GUSTS TO 30
MPH BECOMING DOWNSLOPE 2 TO 5 MPH.
* RIDGE TOP........SOUTHWEST WINDS 30 TO 50 MPH. GUSTS TO 80 MPH
DECREASING TO 55 MPH AFTER MIDNIGHT.
* HAINES INDEX.......2.
* LAL................1.
* CHC WETTING RAIN...45%.
* MIXING HEIGHT......600-1000 FT AGL IN THE EVENING THEN 200-500 FT
AGL.
* TRANSPORT WINDS....SOUTHWEST 15 TO 25 MPH IN THE EVENING BECOMING
LIGHT.
* VENTILATION........GOOD DECREASING TO FAIR AFTER MIDNIGHT.
SUNDAY
* SKY/WEATHER........SHOWERS IN THE MORNING, THEN CHANCE OF SHOWERS
IN THE AFTERNOON.
* MAX TEMPERATURE....
* VALLEYS..........38-43.
* MID SLOPE........36-44.
* MIN HUMIDITY.......
* VALLEYS..........77-87%.
* MID SLOPE........64-74%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....SOUTHWEST WINDS 7 TO 12 MPH.
* RIDGE TOP........SOUTHWEST WINDS 20 TO 35 MPH. GUSTS TO 70 MPH
DECREASING TO 50 MPH LATE IN THE AFTERNOON.
* HAINES INDEX.......2.
* LAL................1.
* CHC WETTING RAIN...55%.
* MIXING HEIGHT......800-1300 FT AGL.
* TRANSPORT WINDS....SOUTHWEST 10 TO 15 MPH INCREASING TO 15 TO 25
MPH IN THE AFTERNOON.
* VENTILATION........GOOD.
EXTENDED
SUNDAY NIGHT
CHANCE OF SHOWERS IN THE EVENING, THEN SHOWERS
LIKELY AFTER MIDNIGHT. LOWS 27-37. SOUTHWEST WINDS 8 TO 13 MPH.
MONDAY
MOSTLY CLOUDY. CHANCE OF RAIN. HIGHS 44-50. LOWS 27-37.
SOUTHWEST WINDS 10 TO 15 MPH.
TUESDAY
SNOW AND RAIN. HIGHS 37-42. LOWS 13-23. SOUTHWEST WINDS
10 TO 15 MPH.
CHRISTMAS DAY
MOSTLY CLOUDY. CHANCE OF SNOW. HIGHS 37-43. LOWS
13-23. SLOPE WINDS.
THURSDAY
SNOW LIKELY. HIGHS 35-41. LOWS 20-30.
FRIDAY
RAIN LIKELY AND A CHANCE OF SNOW. HIGHS 37-43.
NVZ423-220015-
WEST HUMBOLDT BASIN IN PERSHING COUNTY-
515 AM PST SAT DEC 21 2024
TODAY
* SKY/WEATHER........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
* MAX TEMPERATURE....
* VALLEYS..........49-59.
* MID SLOPE........47-57.
* 24 HR TREND......LITTLE CHANGE.
* MIN HUMIDITY.......
* VALLEYS..........25-35%.
* MID SLOPE........25-35%.
* 24 HR TREND......LITTLE CHANGE.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....SOUTH WINDS 10 TO 15 MPH. GUSTS TO 25 MPH IN THE
AFTERNOON.
* RIDGE TOP........SOUTH WINDS 10 TO 20 MPH INCREASING TO SOUTHWEST
20 TO 30 MPH LATE IN THE AFTERNOON. GUSTS TO
50 MPH INCREASING TO 70 MPH IN THE AFTERNOON.
* HAINES INDEX.......3.
* LAL................1.
* CHC WETTING RAIN...0%.
* MIXING HEIGHT......600-800 FT AGL INCREASING TO 1500-2000 FT AGL
IN THE AFTERNOON.
* TRANSPORT WINDS....SOUTH 10 TO 15 MPH SHIFTING TO THE SOUTHWEST
15 TO 25 MPH IN THE AFTERNOON.
* VENTILATION........MARGINAL INCREASING TO VERY GOOD IN THE
AFTERNOON.
TONIGHT
* SKY/WEATHER........CLOUDY. SLIGHT CHANCE OF SHOWERS AFTER
MIDNIGHT.
* MIN TEMPERATURE....
* VALLEYS..........29-39.
* MID SLOPE........33-40.
* 24 HR TREND......5 DEGREES WARMER.
* MAX HUMIDITY.......
* VALLEYS..........81-91%.
* MID SLOPE........73-83%.
* 24 HR TREND......44% WETTER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....DOWNSLOPE 2 TO 5 MPH.
* RIDGE TOP........WEST WINDS 15 TO 25 MPH. GUSTS TO 50 MPH
DECREASING TO 35 MPH AFTER MIDNIGHT.
* HAINES INDEX.......2.
* LAL................1.
* CHC WETTING RAIN...10%.
* MIXING HEIGHT......600 FT AGL IN THE EVENING THEN 200-500 FT AGL.
* TRANSPORT WINDS....LIGHT WINDS.
* VENTILATION........MARGINAL.
SUNDAY
* SKY/WEATHER........SHOWERS LIKELY IN THE MORNING, THEN CHANCE OF
SHOWERS IN THE AFTERNOON.
* MAX TEMPERATURE....
* VALLEYS..........47-53.
* MID SLOPE........42-51.
* MIN HUMIDITY.......
* VALLEYS..........58-68%.
* MID SLOPE........61-71%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH.
* RIDGE TOP........SOUTHWEST WINDS 10 TO 15 MPH.
* HAINES INDEX.......2.
* LAL................1.
* CHC WETTING RAIN...40%.
* MIXING HEIGHT......600-700 FT AGL INCREASING TO 900-1400 FT AGL
IN THE AFTERNOON.
* TRANSPORT WINDS....LIGHT WINDS BECOMING SOUTHWEST 10 TO 15 MPH IN
THE AFTERNOON.
* VENTILATION........POOR INCREASING TO FAIR IN THE AFTERNOON.
EXTENDED
SUNDAY NIGHT
MOSTLY CLOUDY. CHANCE OF SHOWERS. LOWS 31-40.
DOWNSLOPE 2 TO 5 MPH.
MONDAY
MOSTLY CLOUDY. HIGHS 50-58. LOWS 28-38. SLOPE WINDS.
TUESDAY
MOSTLY CLOUDY. CHANCE OF RAIN AND A SLIGHT CHANCE OF
SNOW. HIGHS 46-56. LOWS 20-30. SOUTHWEST WINDS 10 TO 15 MPH.
CHRISTMAS DAY
MOSTLY CLOUDY. HIGHS 42-48. LOWS 20-30. SLOPE
WINDS.
THURSDAY THROUGH FRIDAY
MOSTLY CLOUDY. CHANCE OF RAIN AND SNOW.
HIGHS 44-50. LOWS 24-34.
NVZ429-220015-
LAHONTAN BASIN INCLUDING CHURCHILL AND EASTERN MINERAL COUNTIES-
515 AM PST SAT DEC 21 2024
TODAY
* SKY/WEATHER........PARTLY CLOUDY.
* MAX TEMPERATURE....
* VALLEYS..........53-63.
* MID SLOPE........50-60.
* 24 HR TREND......5 DEGREES WARMER.
* MIN HUMIDITY.......
* VALLEYS..........22-32%.
* MID SLOPE........22-32%.
* 24 HR TREND......LITTLE CHANGE.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....SOUTH WINDS 10 TO 15 MPH WITH GUSTS TO 35 MPH.
* RIDGE TOP........SOUTH WINDS 10 TO 20 MPH WITH GUSTS TO 50 MPH
INCREASING TO SOUTHWEST 20 TO 30 MPH WITH
GUSTS TO 75 MPH IN THE AFTERNOON.
* HAINES INDEX.......4.
* LAL................1.
* CHC WETTING RAIN...0%.
* MIXING HEIGHT......600-800 FT AGL INCREASING TO 1700-2700 FT AGL
IN THE AFTERNOON.
* TRANSPORT WINDS....SOUTH 10 TO 15 MPH SHIFTING TO THE SOUTHWEST
15 TO 25 MPH IN THE AFTERNOON.
* VENTILATION........MARGINAL INCREASING TO VERY GOOD IN THE
AFTERNOON.
TONIGHT
* SKY/WEATHER........CLOUDY. SLIGHT CHANCE OF SHOWERS AFTER
MIDNIGHT.
* MIN TEMPERATURE....
* VALLEYS..........32-42.
* MID SLOPE........34-43.
* 24 HR TREND......LITTLE CHANGE.
* MAX HUMIDITY.......
* VALLEYS..........72-82%.
* MID SLOPE........51-61%.
* 24 HR TREND......36% WETTER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....SOUTHWEST WINDS 7 TO 12 MPH IN THE EVENING
BECOMING DOWNSLOPE 2 TO 5 MPH.
* RIDGE TOP........SOUTH WINDS 10 TO 20 MPH. GUSTS TO 50 MPH
DECREASING TO 30 MPH IN THE MORNING.
* HAINES INDEX.......2.
* LAL................1.
* CHC WETTING RAIN...5%.
* MIXING HEIGHT......600 FT AGL IN THE EVENING THEN 200-500 FT AGL.
* TRANSPORT WINDS....LIGHT WINDS.
* VENTILATION........MARGINAL.
SUNDAY
* SKY/WEATHER........CLOUDY. CHANCE OF SHOWERS.
* MAX TEMPERATURE....
* VALLEYS..........49-57.
* MID SLOPE........46-54.
* MIN HUMIDITY.......
* VALLEYS..........44-54%.
* MID SLOPE........46-56%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH.
* RIDGE TOP........LIGHT WINDS.
* HAINES INDEX.......2.
* LAL................1.
* CHC WETTING RAIN...25%.
* MIXING HEIGHT......600 FT AGL INCREASING TO 1100-1600 FT AGL IN
THE AFTERNOON.
* TRANSPORT WINDS....LIGHT WINDS.
* VENTILATION........POOR INCREASING TO FAIR IN THE AFTERNOON.
EXTENDED
SUNDAY NIGHT
MOSTLY CLOUDY. LOWS 30-40. DOWNSLOPE 2 TO 5 MPH.
MONDAY
MOSTLY CLOUDY. HIGHS 51-59. LOWS 29-39. SOUTHEAST WINDS
10 TO 15 MPH.
TUESDAY
MOSTLY CLOUDY. CHANCE OF RAIN AND SNOW. HIGHS 48-58. LOWS
20-30. SOUTHWEST WINDS 10 TO 15 MPH.
CHRISTMAS DAY
MOSTLY CLOUDY. HIGHS 41-49. LOWS 20-30. SLOPE
WINDS.
THURSDAY THROUGH FRIDAY
MOSTLY CLOUDY. CHANCE OF SNOW AND A
SLIGHT CHANCE OF RAIN. HIGHS 46-54. LOWS 24-34.
CAZ278-220015-
EASTERN LASSEN COUNTY-
515 AM PST SAT DEC 21 2024
..WIND ADVISORY IN EFFECT UNTIL 4 PM PST THIS AFTERNOON
TODAY
* SKY/WEATHER........MOSTLY CLOUDY. SCATTERED SHOWERS.
* MAX TEMPERATURE....
* VALLEYS..........41-51.
* MID SLOPE........36-46.
* 24 HR TREND......LITTLE CHANGE.
* MIN HUMIDITY.......
* VALLEYS..........52-62%.
* MID SLOPE........53-63%.
* 24 HR TREND......12% WETTER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....SOUTHEAST WINDS 5 TO 10 MPH WITH GUSTS TO 30 MPH
INCREASING TO SOUTHWEST 15 TO 25 MPH WITH
GUSTS TO 45 MPH IN THE LATE MORNING AND
AFTERNOON.
* RIDGE TOP........SOUTHWEST WINDS 20 TO 35 MPH. GUSTS TO 60 MPH
INCREASING TO 80 MPH IN THE LATE MORNING AND
AFTERNOON.
* HAINES INDEX.......2.
* LAL................1.
* CHC WETTING RAIN...25%.
* MIXING HEIGHT......600-1100 FT AGL INCREASING TO 1600-2100 FT AGL
IN THE AFTERNOON.
* TRANSPORT WINDS....SOUTH 15 TO 25 MPH INCREASING TO SOUTHWEST 25
TO 35 MPH IN THE AFTERNOON.
* VENTILATION........GOOD INCREASING TO VERY GOOD IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER........MOSTLY CLOUDY. CHANCE OF SHOWERS AFTER
MIDNIGHT.
* MIN TEMPERATURE....
* VALLEYS..........29-39.
* MID SLOPE........29-36.
* 24 HR TREND......5 DEGREES WARMER.
* MAX HUMIDITY.......
* VALLEYS..........89-99%.
* MID SLOPE........89-99%.
* 24 HR TREND......LITTLE CHANGE.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....WEST WINDS 5 TO 10 MPH IN THE EVENING BECOMING
DOWNSLOPE 2 TO 5 MPH.
* RIDGE TOP........SOUTH WINDS 10 TO 20 MPH. GUSTS TO 50 MPH
DECREASING TO 35 MPH AFTER MIDNIGHT.
* HAINES INDEX.......2.
* LAL................1.
* CHC WETTING RAIN...10%.
* MIXING HEIGHT......600-900 FT AGL IN THE EVENING THEN 200-500 FT
AGL.
* TRANSPORT WINDS....LIGHT WINDS.
* VENTILATION........FAIR DECREASING TO MARGINAL AFTER MIDNIGHT.
SUNDAY
* SKY/WEATHER........CLOUDY. CHANCE OF SHOWERS IN THE MORNING, THEN
CHANCE OF SNOW SHOWERS IN THE AFTERNOON.
* MAX TEMPERATURE....
* VALLEYS..........41-51.
* MID SLOPE........37-47.
* MIN HUMIDITY.......
* VALLEYS..........67-77%.
* MID SLOPE........76-86%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH BECOMING SOUTHWEST 5 TO 10
MPH LATE IN THE AFTERNOON.
* RIDGE TOP........SOUTHWEST WINDS 10 TO 15 MPH.
* HAINES INDEX.......2.
* LAL................1.
* CHC WETTING RAIN...20%.
* MIXING HEIGHT......600-900 FT AGL INCREASING TO 1000-1500 FT AGL
IN THE AFTERNOON.
* TRANSPORT WINDS....LIGHT WINDS BECOMING SOUTHWEST 10 TO 15 MPH IN
THE AFTERNOON.
* VENTILATION........MARGINAL INCREASING TO FAIR IN THE AFTERNOON.
EXTENDED
SUNDAY NIGHT
SHOWERS LIKELY IN THE EVENING, THEN CHANCE OF
SHOWERS AFTER MIDNIGHT. LOWS 29-39. SOUTHWEST WINDS 8 TO 13 MPH
UNTIL EARLY MORNING BECOMING DOWNSLOPE 2 TO 5 MPH.
MONDAY
MOSTLY CLOUDY. CHANCE OF RAIN. HIGHS 43-53. LOWS 29-39.
SOUTHEAST WINDS 10 TO 15 MPH.
TUESDAY
RAIN AND A SLIGHT CHANCE OF SNOW. HIGHS 40-48. LOWS
19-29. WEST WINDS 10 TO 20 MPH.
CHRISTMAS DAY
MOSTLY CLOUDY. CHANCE OF SNOW. HIGHS 36-44. LOWS
19-29. SLOPE WINDS.
THURSDAY
SNOW AND RAIN LIKELY. HIGHS 37-47. LOWS 25-33.
FRIDAY
CLOUDY. CHANCE OF RAIN AND SNOW. HIGHS 38-46.
CAZ270-NVZ458-220015-
SURPRISE VALLEY CALIFORNIA-NORTHERN WASHOE COUNTY-
515 AM PST SAT DEC 21 2024
TODAY
* SKY/WEATHER........MOSTLY CLOUDY. SCATTERED SHOWERS IN THE
AFTERNOON.
* MAX TEMPERATURE....
* VALLEYS..........43-53.
* MID SLOPE........41-47.
* 24 HR TREND......LITTLE CHANGE.
* MIN HUMIDITY.......
* VALLEYS..........45-55%.
* MID SLOPE........44-54%.
* 24 HR TREND......5% WETTER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....SOUTH WINDS 7 TO 12 MPH WITH GUSTS TO 35 MPH
INCREASING TO SOUTHWEST 15 TO 25 MPH WITH
GUSTS TO 40 MPH.
* RIDGE TOP........SOUTHWEST WINDS 20 TO 35 MPH. GUSTS TO 65 MPH
INCREASING TO 85 MPH IN THE AFTERNOON.
* HAINES INDEX.......2.
* LAL................1.
* CHC WETTING RAIN...15%.
* MIXING HEIGHT......600-1000 FT AGL INCREASING TO 1600-2600 FT AGL
IN THE AFTERNOON.
* TRANSPORT WINDS....SOUTH 15 TO 25 MPH INCREASING TO SOUTHWEST 25
TO 35 MPH IN THE AFTERNOON.
* VENTILATION........FAIR INCREASING TO VERY GOOD IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER........MOSTLY CLOUDY. CHANCE OF SHOWERS AFTER
MIDNIGHT.
* MIN TEMPERATURE....
* VALLEYS..........27-37.
* MID SLOPE........26-36.
* 24 HR TREND......LITTLE CHANGE.
* MAX HUMIDITY.......
* VALLEYS..........87-97%.
* MID SLOPE........87-97%.
* 24 HR TREND......6% DRIER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....SOUTHWEST WINDS 5 TO 10 MPH WITH GUSTS TO 20 MPH
IN THE EVENING BECOMING DOWNSLOPE 2 TO 5 MPH.
* RIDGE TOP........SOUTH WINDS 10 TO 15 MPH WITH GUSTS TO 55 MPH.
* HAINES INDEX.......2.
* LAL................1.
* CHC WETTING RAIN...5%.
* MIXING HEIGHT......600-900 FT AGL IN THE EVENING THEN 200-500 FT
AGL.
* TRANSPORT WINDS....SOUTHWEST 10 TO 15 MPH IN THE EVENING BECOMING
LIGHT.
* VENTILATION........GOOD DECREASING TO MARGINAL AFTER MIDNIGHT.
SUNDAY
* SKY/WEATHER........SHOWERS LIKELY IN THE MORNING, THEN CHANCE OF
SHOWERS IN THE AFTERNOON.
* MAX TEMPERATURE....
* VALLEYS..........42-52.
* MID SLOPE........38-46.
* MIN HUMIDITY.......
* VALLEYS..........64-74%.
* MID SLOPE........67-77%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH BECOMING SOUTHWEST 7 TO 12
MPH WITH GUSTS TO 20 MPH IN THE AFTERNOON.
* RIDGE TOP........SOUTHWEST WINDS 10 TO 15 MPH.
* HAINES INDEX.......2.
* LAL................1.
* CHC WETTING RAIN...25%.
* MIXING HEIGHT......600-900 FT AGL INCREASING TO 1100-1600 FT AGL
IN THE AFTERNOON.
* TRANSPORT WINDS....SOUTHWEST 10 TO 15 MPH.
* VENTILATION........MARGINAL INCREASING TO GOOD IN THE AFTERNOON.
EXTENDED
SUNDAY NIGHT
CLOUDY. CHANCE OF SHOWERS. LOWS 31-40. SOUTHWEST
WINDS 7 TO 12 MPH.
MONDAY
MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN. HIGHS 44-54. LOWS
31-41. SOUTH WINDS 10 TO 20 MPH.
TUESDAY
RAIN AND A SLIGHT CHANCE OF SNOW. HIGHS 42-50. LOWS
19-29. SOUTHWEST WINDS 10 TO 20 MPH.
CHRISTMAS DAY
MOSTLY CLOUDY. CHANCE OF SNOW. HIGHS 36-46. LOWS
19-29. SOUTH WINDS 10 TO 15 MPH.
THURSDAY
SNOW LIKELY AND A CHANCE OF RAIN. HIGHS 38-48. LOWS
26-34.
FRIDAY
CLOUDY. CHANCE OF RAIN AND SNOW. HIGHS 38-48.
CAZ271-220015-
WESTERN LASSEN, EASTERN PLUMAS, AND EASTERN SIERRA COUNTIES-
515 AM PST SAT DEC 21 2024
..WIND ADVISORY IN EFFECT UNTIL 4 PM PST THIS AFTERNOON
TODAY
* SKY/WEATHER........SHOWERS.
* MAX TEMPERATURE....
* VALLEYS..........38-48.
* MID SLOPE........37-47.
* 24 HR TREND......4 DEGREES COOLER.
* MIN HUMIDITY.......
* VALLEYS..........60-70%.
* MID SLOPE........56-66%.
* 24 HR TREND......17% WETTER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....SOUTH WINDS 10 TO 15 MPH WITH GUSTS TO 30 MPH
INCREASING TO SOUTHWEST 20 TO 30 MPH WITH
GUSTS TO 45 MPH IN THE LATE MORNING AND
AFTERNOON.
* RIDGE TOP........SOUTHWEST WINDS 20 TO 35 MPH. GUSTS TO 80 MPH
INCREASING TO 85 MPH IN THE AFTERNOON.
* HAINES INDEX.......2.
* LAL................1.
* CHC WETTING RAIN...55%.
* MIXING HEIGHT......900-1400 FT AGL.
* TRANSPORT WINDS....SOUTHWEST 25 TO 35 MPH.
* VENTILATION........GOOD INCREASING TO VERY GOOD IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER........CLOUDY. CHANCE OF SHOWERS.
* MIN TEMPERATURE....
* VALLEYS..........28-38.
* MID SLOPE........28-38.
* 24 HR TREND......LITTLE CHANGE.
* MAX HUMIDITY.......
* VALLEYS..........89-99%.
* MID SLOPE........89-99%.
* 24 HR TREND......LITTLE CHANGE.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....SOUTHWEST WINDS 5 TO 10 MPH IN THE EVENING
BECOMING DOWNSLOPE 2 TO 5 MPH.
* RIDGE TOP........SOUTHWEST WINDS 10 TO 20 MPH. GUSTS TO 60 MPH
DECREASING TO 45 MPH AFTER MIDNIGHT.
* HAINES INDEX.......2.
* LAL................1.
* CHC WETTING RAIN...20%.
* MIXING HEIGHT......800 FT AGL.
* TRANSPORT WINDS....SOUTHWEST 10 TO 15 MPH IN THE EVENING BECOMING
LIGHT.
* VENTILATION........FAIR.
SUNDAY
* SKY/WEATHER........SHOWERS LIKELY IN THE MORNING, THEN CHANCE OF
SHOWERS IN THE AFTERNOON.
* MAX TEMPERATURE....
* VALLEYS..........40-50.
* MID SLOPE........38-48.
* MIN HUMIDITY.......
* VALLEYS..........71-81%.
* MID SLOPE........71-81%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....UPSLOPE 4 TO 8 MPH BECOMING SOUTHWEST 7 TO 12
MPH IN THE AFTERNOON.
* RIDGE TOP........SOUTHWEST WINDS 10 TO 15 MPH WITH GUSTS TO 45
MPH.
* HAINES INDEX.......2.
* LAL................1.
* CHC WETTING RAIN...30%.
* MIXING HEIGHT......600-900 FT AGL INCREASING TO 900-1400 FT AGL
IN THE AFTERNOON.
* TRANSPORT WINDS....LIGHT WINDS BECOMING SOUTHWEST 10 TO 20 MPH IN
THE AFTERNOON.
* VENTILATION........MARGINAL INCREASING TO GOOD IN THE AFTERNOON.
EXTENDED
SUNDAY NIGHT
SHOWERS IN THE EVENING, THEN CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS 27-37. SOUTHWEST WINDS 7 TO 12 MPH UNTIL EARLY
MORNING BECOMING DOWNSLOPE 2 TO 5 MPH.
MONDAY
MOSTLY CLOUDY. CHANCE OF RAIN. HIGHS 42-52. LOWS 27-37.
SOUTH WINDS 10 TO 15 MPH.
TUESDAY
RAIN AND SNOW. HIGHS 39-47. LOWS 14-24. SOUTHWEST WINDS
10 TO 15 MPH.
CHRISTMAS DAY
MOSTLY CLOUDY. CHANCE OF RAIN AND SNOW. HIGHS
36-44. LOWS 14-24. SLOPE WINDS.
THURSDAY
SNOW AND RAIN LIKELY. HIGHS 35-43. LOWS 20-30.
FRIDAY
RAIN AND SNOW LIKELY. HIGHS 37-45.
CAZ274-220015-
SOUTHERN MONO COUNTY-
515 AM PST SAT DEC 21 2024
TODAY
* SKY/WEATHER........MOSTLY CLOUDY.
* MAX TEMPERATURE....
* VALLEYS..........45-55.
* MID SLOPE........41-51.
* 24 HR TREND......LITTLE CHANGE.
* MIN HUMIDITY.......
* VALLEYS..........28-38%.
* MID SLOPE........29-39%.
* 24 HR TREND......LITTLE CHANGE.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....SOUTH WINDS 10 TO 14 MPH WITH GUSTS TO 25 MPH
INCREASING TO 15 TO 25 MPH WITH GUSTS TO 45
MPH IN THE LATE MORNING AND AFTERNOON.
* RIDGE TOP........SOUTHWEST WINDS 25 TO 40 MPH. GUSTS TO 60 MPH
INCREASING TO 80 MPH IN THE LATE MORNING AND
AFTERNOON.
* HAINES INDEX.......3.
* LAL................1.
* CHC WETTING RAIN...0%.
* MIXING HEIGHT......800-1300 FT AGL.
* TRANSPORT WINDS....SOUTHWEST 15 TO 25 MPH.
* VENTILATION........FAIR INCREASING TO GOOD IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER........MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AFTER
MIDNIGHT.
* MIN TEMPERATURE....
* VALLEYS..........22-32.
* MID SLOPE........27-37.
* 24 HR TREND......LITTLE CHANGE.
* MAX HUMIDITY.......
* VALLEYS..........81-91%.
* MID SLOPE........59-69%.
* 24 HR TREND......34% WETTER.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....SOUTHWEST WINDS 8 TO 13 MPH.
* RIDGE TOP........SOUTHWEST WINDS 15 TO 25 MPH. GUSTS TO 70 MPH
DECREASING TO 45 MPH IN THE MORNING.
* HAINES INDEX.......2.
* LAL................1.
* CHC WETTING RAIN...10%.
* MIXING HEIGHT......600-700 FT AGL IN THE EVENING THEN 200-500 FT
AGL.
* TRANSPORT WINDS....SOUTHWEST 10 TO 15 MPH.
* VENTILATION........FAIR.
SUNDAY
* SKY/WEATHER........SNOW SHOWERS LIKELY.
* MAX TEMPERATURE....
* VALLEYS..........43-53.
* MID SLOPE........39-49.
* MIN HUMIDITY.......
* VALLEYS..........51-61%.
* MID SLOPE........50-60%.
* 20-FOOT WINDS......
* VALLEYS/SLOPE....SOUTHWEST WINDS 7 TO 12 MPH.
* RIDGE TOP........SOUTHWEST WINDS 15 TO 25 MPH WITH GUSTS TO 55
MPH.
* HAINES INDEX.......2.
* LAL................1.
* CHC WETTING RAIN...25%.
* MIXING HEIGHT......600-800 FT AGL INCREASING TO 900-1400 FT AGL
IN THE AFTERNOON.
* TRANSPORT WINDS....SOUTHWEST 10 TO 15 MPH.
* VENTILATION........FAIR.
EXTENDED
SUNDAY NIGHT
MOSTLY CLOUDY. LOWS 22-32. SOUTHWEST WINDS 7 TO
12 MPH.
MONDAY
MOSTLY CLOUDY. HIGHS 45-55. LOWS 22-32. SLOPE WINDS.
TUESDAY
MOSTLY CLOUDY. CHANCE OF RAIN AND SNOW. HIGHS 40-50. LOWS
9-19. SOUTHWEST WINDS 15 TO 25 MPH.
CHRISTMAS DAY
PARTLY CLOUDY. HIGHS 37-47. LOWS 9-19. SLOPE WINDS.
THURSDAY THROUGH FRIDAY
MOSTLY CLOUDY. CHANCE OF SNOW AND RAIN.
HIGHS 39-49. LOWS 16-26.
.8 TO 14 DAY OUTLOOK FOR (SAT DEC 28 THROUGH FRI JAN 3)
ABOVE NORMAL TEMPERATURES AND PRECIPITATION.
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