610
FNUS76 KSTO 190936
FWSSTO
SPOT FORECAST FOR MHRD DISTRICT PILES- IRSC...US FOREST SERVICE
NATIONAL WEATHER SERVICE SACRAMENTO CA
136 AM PST FRI DEC 19 2025
FORECAST IS BASED ON IGNITION TIME OF 0700 PST ON DECEMBER 19.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
ACTIVE WEATHER RESUMES TODAY AND IS EXPECTED TO PERSIST OVER THE
WEEKEND AND AT LEAST THROUGH THE UPCOMING HOLIDAY PERIOD. WIDESPREAD
RAIN SHOWERS LOOK TO CONTINUE THROUGH THE EVENING, WITH POTENTIAL
FOR A BRIEF LULL OVERNIGHT INTO EARLY SATURDAY MORNING BEFORE THE
NEXT WAVE OF PRECIPITATION ARRIVES LATER SATURDAY. RAINFALL TOTALS
OF 1-2 INCHES ARE CURRENTLY FORECAST IN THE BURN AREA THROUGH
SATURDAY EVENING. SOUTHERLY WINDS ARE EXPECTED TO REMAIN BREEZY TO
GUSTY ACROSS THE FORECAST PERIOD. FORECAST GUSTS LOOK TO SIT AT OR
ABOVE 20 MPH GENERALLY THROUGH SATURDAY, WITH STRONGEST GUSTS IN THE
SHORT TERM EXPECTED THROUGH THIS MORNING.
THERE IS HIGHER FORECAST UNCERTAINTY ON EXACT DETAILS INTO NEXT
WEEK, BUT PERIODS OF MODERATE TO HEAVY RAINFALL ARE LIKELY ALONGSIDE
ADDITIONAL POTENTIAL FOR GUSTY WINDS. CURRENT PROBABILITIES FOR
RAINFALL GREATER THAN 5 INCHES FROM SUNDAY THROUGH WEDNESDAY SIT
AROUND 40-60%, WITH 30-50% PROBABILITIES OF WIND GUSTS GREATER THAN
40 MPH SUNDAY INTO MONDAY. ADDITIONALLY, SNOW LEVELS ARE EXPECTED
TO FALL TO AROUND 5500-6000 FEET BY THE MIDDLE OF THE WEEK, WITH
ACCUMULATING SNOWFALL IN THE BURN VICINITY POSSIBLE AS EARLY AS
TUESDAY NIGHT/WEDNESDAY.
TODAY
SKY/WEATHER.........CLOUDY. RAIN SHOWERS.
MAX TEMPERATURE.....36-41.
MIN HUMIDITY........94-99 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......SOUTHWEST WINDS 18 TO 23 MPH. GUSTS TO
AROUND 37 MPH IN THE MORNING DECREASING TO
25 TO 30 MPH IN THE AFTERNOON.
RIDGETOP...........SOUTHWEST 21 TO 26 MPH.
MIXING HEIGHT.......LESS THAN 100 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 21 TO 26 MPH.
CWR.................55 PERCENT INCREASING TO 92 PERCENT IN THE LATE
MORNING AND AFTERNOON.
CHANCE OF THUNDER...10 PERCENT.
TIME (PST) 7 AM 10 AM 1 PM 4 PM
SKY COVER.......CLOUDY CLOUDY CLOUDY CLOUDY
CWR.............60 90 90 80
CHC OF THDR (%).0 0 0 10
TEMP............38 35 37 36
RH..............95 100 100 100
SL/VL WIND......SW 23G37 SW 18G31 SW 16G28 SW 16G28
RIDGETOP WIND...SW 25 SW 26 SW 24 SW 21
MIX HGT (FT)....BLW100 BLW100 BLW100 BLW100
TRANSPORT WIND..SW 25 SW 26 SW 24 SW 21
TONIGHT
SKY/WEATHER.........CLOUDY. RAIN SHOWERS IN THE EVENING THEN
CHANCE OF RAIN SHOWERS OVERNIGHT.
MIN TEMPERATURE.....35-40.
MAX HUMIDITY........95-100 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......SOUTHWEST WINDS 16 TO 22 MPH WITH GUSTS
30 TO 35 MPH.
RIDGETOP...........SOUTHWEST 17 TO 22 MPH.
MIXING HEIGHT.......AROUND 0 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 17 TO 22 MPH.
CWR.................83 PERCENT DECREASING TO 20 PERCENT.
CHANCE OF THUNDER...10 PERCENT.
TIME (PST) 6 PM 9 PM MIDNGT 3 AM
SKY COVER.......CLOUDY CLOUDY CLOUDY CLOUDY
CWR.............80 80 50 50
CHC OF THDR (%).10 10 10 0
TEMP............37 39 39 39
RH..............98 99 99 95
SL/VL WIND......SW 16G28 SW 21G33 SW 22G36 SW 20G32
RIDGETOP WIND...SW 21 SW 21 SW 22 SW 20
MIX HGT (FT)....BLW100 BLW100 BLW100 BLW100
TRANSPORT WIND..SW 21 SW 21 SW 22 SW 20
SATURDAY
SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS IN
THE MORNING THEN RAIN SHOWERS IN THE
AFTERNOON.
MAX TEMPERATURE.....40-45.
MIN HUMIDITY........80-85 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......SOUTHWEST WINDS 5 TO 16 MPH.
RIDGETOP...........SOUTHWEST 15 TO 18 MPH.
MIXING HEIGHT.......LESS THAN 100 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 15 TO 18 MPH.
CWR.................20 PERCENT INCREASING TO 88 PERCENT.
CHANCE OF THUNDER...5 PERCENT.
TIME (PST) 6 AM 9 AM NOON 3 PM
SKY COVER.......MCLDY MCLDY MCLDY MCLDY
CWR.............20 20 40 80
CHC OF THDR (%).0 0 10 10
TEMP............39 38 39 38
RH..............91 98 99 100
SL/VL WIND......SW 16G26 SW 14G22 SW 10G18 SW 10G20
RIDGETOP WIND...SW 17 SW 15 SW 15 SW 18
MIX HGT (FT)....BLW100 BLW100 BLW100 BLW100
TRANSPORT WIND..SW 17 SW 15 SW 15 SW 18
FORECAST DAYS 3 THROUGH 5
SUNDAY
RAIN. PERIODS OF HEAVY RAINFALL. LOWS IN THE UPPER 30S. HIGHS IN
THE MID 40S. SOUTHWEST WINDS 16 TO 22 MPH WITH GUSTS UP TO 40 MPH.
MONDAY
RAIN WITH SLIGHT CHANCE OF SNOW SHOWERS LATE. PERIODS OF MODERATE
RAINFALL. LOWS IN THE UPPER 30S. HIGHS IN THE LOWER 40S. SOUTH WINDS
16 TO 22 MPH WITH GUSTS UP TO 40 MPH EARLY, DECREASING TO 10 TO 14 MPH.
TUESDAY
SHOWERS AND SNOW SHOWERS. LOWS IN THE MID 30S. HIGHS IN THE UPPER
30S. SOUTH WINDS AROUND 10 TO 14 MPH.
FORECASTER...NR
REQUESTED BY...EDWARD BADALAMENTI
TYPE OF REQUEST...PRESCRIBED
.TAG 2527812.2/STO
.DELDT 12/19/25
.FORMATTERVERSION 2.0.0
.EMAIL EDWARD.BADALAMENTI@USDA.GOV,LUCAS.PASCUCCI@USDA.GOV
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