Northern Sierra Nevada's Lovers Leap at Giant Gap American River Gorge
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National Weather Service Fire Weather Planning Forecast
For the Northern Sierra Nevada & Tahoe National Forest



FIRE WEATHER PLANNING FORECAST FOR INTERIOR NORTHERN CALIFORNIA
NATIONAL WEATHER SERVICE SACRAMENTO CA
307 PM PDT MON APR 20 2015

DISCUSSION... ISOLATED TO SCATTERED SHOWERS AND THUNDERSTORMS ACROSS HIGHER SIERRA AND COASTAL RANGE THIS AFTERNOON AND EARLY EVENING. APPROACHING LOW PRESSURE SYSTEM WILL BRING COOLER TEMPERATURES AND MORE WIDESPREAD POTENTIAL FOR SHOWERS AND THUNDERSTORMS MAINLY OVER THE HIGH TERRAIN TUESDAY INTO THURSDAY.

NORTHERN SIERRA INCLUDING THE TAHOE AND ELDORADO NF/S WEST OF THE
SIERRA CREST-
307 PM PDT MON APR 20 2015

.TONIGHT...
* SKY/WEATHER............MOSTLY CLOUDY WITH SCATTERED SHOWERS AND
THUNDERSTORMS IN THE EVENING...THEN PARTLY CLOUDY AFTER MIDNIGHT.
* MIN TEMPERATURE........45-52 LOWER ELEVATIONS...EXCEPT 35-45
HIGHER ELEVATIONS.
* 24 HR TREND..........LITTLE CHANGE.
* MAX HUMIDITY...........64-79 PERCENT.
* 24 HR TREND..........8 PERCENT UP.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...WEST WINDS UP TO 8 MPH SHIFTING TO THE
NORTHEAST AFTER MIDNIGHT.
* RIDGES/UPR SLOPES....WEST WINDS 4 TO 9 MPH SHIFTING TO THE
NORTHEAST UP TO 7 MPH AFTER MIDNIGHT.
* LAL....................3 DECREASING TO 1 AFTER MIDNIGHT.
* CWR....................20 PERCENT.

.TUESDAY...
* SKY/WEATHER............SUNNY IN THE MORNING...THEN MOSTLY CLOUDY
WITH SCATTERED SHOWERS AND THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE........66-71 LOWER ELEVATIONS...EXCEPT 56-66
HIGHER ELEVATIONS.
* 24 HR TREND..........5 DEGREES COOLER.
* MIN HUMIDITY...........32-41 PERCENT.
* 24 HR TREND..........12 PERCENT UP.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...EAST WINDS UP TO 7 MPH SHIFTING TO THE
SOUTHWEST 4 TO 9 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....EAST WINDS UP TO 7 MPH SHIFTING TO THE
SOUTHWEST UP TO 8 MPH IN THE AFTERNOON.
* LAL....................1 INCREASING TO 4 IN THE AFTERNOON.
* CWR....................40 PERCENT.

.TUESDAY NIGHT...
* SKY/WEATHER............MOSTLY CLOUDY IN THE EVENING THEN BECOMING
PARTLY CLOUDY. A CHANCE OF SHOWERS AND THUNDERSTORMS IN THE
EVENING. AT HIGHER ELEVATIONS...A SLIGHT CHANCE OF RAIN SHOWERS
AFTER MIDNIGHT.
* MIN TEMPERATURE........45-51 LOWER ELEVATIONS...EXCEPT 33-43
HIGHER ELEVATIONS.
* MAX HUMIDITY...........75-90 PERCENT.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...SOUTHWEST WINDS UP TO 7 MPH IN THE EVENING
BECOMING DRAINAGE UP TO 5 MPH.
* RIDGES/UPR SLOPES....WEST WINDS 6 TO 12 MPH SHIFTING TO THE NORTH
4 TO 10 MPH AFTER MIDNIGHT.
* LAL....................4 DECREASING TO 1 AFTER MIDNIGHT.
* CWR....................40 PERCENT.

.WEDNESDAY...
* SKY/WEATHER............PARTLY CLOUDY IN THE MORNING THEN BECOMING
MOSTLY CLOUDY. AT HIGHER ELEVATIONS...A SLIGHT CHANCE OF RAIN AND
SNOW SHOWERS IN THE MORNING...THEN A CHANCE OF RAIN
SHOWERS...THUNDERSTORMS AND SNOW SHOWERS IN THE AFTERNOON. AT
LOWER ELEVATIONS...A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS
IN THE AFTERNOON.
* MAX TEMPERATURE........64-69 LOWER ELEVATIONS...EXCEPT 50-60
HIGHER ELEVATIONS.
* MIN HUMIDITY...........43-58 PERCENT LOWER ELEVATIONS...EXCEPT
54-69 PERCENT HIGH ELEVATIONS.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...UPSLOPE WINDS UP TO 5 MPH BECOMING SOUTHWEST
UP TO 7 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....VARIABLE WINDS UP TO 7 MPH BECOMING WEST UP
TO 7 MPH IN THE AFTERNOON.
* LAL....................1 INCREASING TO 4 IN THE AFTERNOON.
* CWR....................30 PERCENT.