031
FNUS76 KSTO 160127
FWSSTO
SPOT FORECAST FOR IRISH RX...USFS
NATIONAL WEATHER SERVICE SACRAMENTO CA
627 PM PDT FRI MAY 15 2026
FORECAST IS BASED ON IGNITION TIME OF 0600 PDT ON MAY 16.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
SEASONABLE TEMPERATURES RETURN OVER THE WEEKEND AS DRY WEATHER
PERSISTS AND GUSTY WINDS WEATHER BUILD IN. AFTER SATURDAY, DAYTIME
HUMIDITY VALUES ARE EXPECTED TO FALL INTO THE TEENS TO LOW 20S
FROM SUNDAY ONWARD, WITH POOR OVERNIGHT HUMIDITY RECOVERY
ANTICIPATED. WHILE GUSTY WEST-NORTHWEST WINDS ARE EXPECTED AT
TIMES THROUGH THE WEEKEND, STRONGEST WINDS IN THE BURN VICINITY
REMAIN ON TRACK FOR SUNDAY NIGHT INTO MONDAY MORNING, WITH EAST-
NORTHEAST WIND GUSTS UP TO 30 MPH POSSIBLE. WINDS THEN LOOK TO
GRADUALLY DECREASE THROUGH THE WEEK AHEAD, WITH LOW HUMIDITY
PREVAILING, AND TEMPERATURES TRENDING ABOVE NORMAL ONCE AGAIN.
SATURDAY
SKY/WEATHER.........SUNNY.
MAX TEMPERATURE.....65-70.
MIN HUMIDITY........33-38 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......LIGHT WINDS BECOMING NORTHWEST 5 TO 8 MPH WITH
GUSTS TO AROUND 21 MPH IN THE LATE MORNING AND
AFTERNOON.
RIDGETOP...........NORTHWEST 6 TO 9 MPH INCREASING TO 9 TO 14 MPH
LATE IN THE MORNING.
MIXING HEIGHT.......RISING TO AROUND 3800 FT AGL.
TRANSPORT WINDS.....NORTHWEST 6 TO 9 MPH INCREASING TO 9 TO 14 MPH
LATE IN THE MORNING.
CWR.................0 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
TIME (PDT) 6 AM 8 AM 10 AM NOON 2 PM 4 PM
SKY COVER.......PCLDY MCLEAR CLEAR CLEAR CLEAR MCLEAR
CWR.............0 0 0 0 0 0
CHC OF THDR (%).0 0 0 0 0 0
TEMP............49 55 62 64 66 67
RH..............45 40 38 37 39 36
SL/VL WIND......N 2 NW 1 W 6 W 8 W 8 NW 8
SL/VL WIND GUST.3 2 14 20 20 21
RIDGETOP WIND...N 6 NW 7 NW 7 NW 9 NW 14 NW 14
MIX HGT (FT)....400 2100 2100 3200 3800 3800
TRANSPORT WIND..N 6 NW 7 NW 7 NW 9 NW 14 NW 14
SATURDAY NIGHT
SKY/WEATHER.........MOSTLY CLEAR.
MIN TEMPERATURE.....45-50.
MAX HUMIDITY........50-55 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......NORTHWEST WINDS UP TO 8 MPH WITH GUSTS TO
AROUND 21 MPH IN THE EVENING BECOMING LIGHT.
RIDGETOP...........NORTH 9 TO 13 MPH SHIFTING TO THE NORTHEAST 6
TO 9 MPH OVERNIGHT.
MIXING HEIGHT.......FALLING TO AROUND 400 FT AGL.
TRANSPORT WINDS.....NORTH 9 TO 13 MPH SHIFTING TO THE NORTHEAST 6
TO 9 MPH OVERNIGHT.
CWR.................0 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
TIME (PDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM
SKY COVER.......MCLEAR PCLDY PCLDY PCLDY MCLEAR MCLEAR
CWR.............0 0 0 0 0 0
CHC OF THDR (%).0 0 0 0 0 0
TEMP............65 58 54 52 50 49
RH..............36 43 50 53 53 49
SL/VL WIND......NW 8 NW 5 NW 5 N 3 NE 3 NE 3
SL/VL WIND GUST.21 12 12 8 8 8
RIDGETOP WIND...NW 13 N 9 N 9 N 7 NE 8 NE 8
MIX HGT (FT)....3100 700 700 400 400 400
TRANSPORT WIND..NW 13 N 9 N 9 N 7 NE 8 NE 8
SUNDAY
SKY/WEATHER.........SUNNY.
MAX TEMPERATURE.....63-68.
MIN HUMIDITY........18-23 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......LIGHT WINDS BECOMING WEST 6 TO 9 MPH WITH GUSTS
TO AROUND 21 MPH LATE IN THE MORNING, THEN
SHIFTING TO THE NORTHWEST WITH GUSTS UP TO
25 MPH LATE IN THE AFTERNOON.
RIDGETOP...........NORTHEAST 7 TO 10 MPH SHIFTING TO THE NORTHWEST
EARLY IN THE MORNING, THEN SHIFTING TO THE NORTH
AROUND 17 MPH LATE IN THE AFTERNOON.
MIXING HEIGHT.......RISING TO AROUND 6800 FT AGL.
TRANSPORT WINDS.....NORTHEAST 7 TO 10 MPH SHIFTING TO THE NORTHWEST
EARLY IN THE MORNING, THEN SHIFTING TO THE NORTH
AROUND 17 MPH LATE IN THE AFTERNOON.
CWR.................0 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
TIME (PDT) 6 AM 10 AM 2 PM
SKY COVER.......MCLEAR CLEAR MCLEAR
CWR.............0 0 0
CHC OF THDR (%).0 0 0
TEMP............48 59 64
RH..............47 36 32
SL/VL WIND......NE 3G7 W 1G3 W 8G21
RIDGETOP WIND...NE 7 NW 7 N 17
MIX HGT (FT)....400 1700 5400
TRANSPORT WIND..NE 7 NW 7 N 17
FORECAST DAYS 3 THROUGH 5
MONDAY
CLEAR. LOWS IN THE UPPER 40S. HIGHS AROUND 70. NORTHEAST WINDS
AROUND 13 MPH WITH GUSTS UP TO 30 MPH EARLY IN THE MORNING,
BECOMING LIGHT AND SOUTHWESTERLY IN THE AFTERNOON. DAYTIME
MINIMUM HUMIDITY IN THE TEENS.
TUESDAY
CLEAR. LOWS AROUND 50. HIGHS IN THE MID 70S. NORTHEAST WINDS
AROUND 7 MPH EARLY IN THE MORNING BECOMING SOUTHWESTERLY IN
THE AFTERNOON. DAYTIME MINIMUM HUMIDITY IN THE UPPER TEENS.
WEDNESDAY
CLEAR. LOWS IN THE LOWER 50S. HIGHS AROUND 80. NORTHEAST WINDS
AROUND 7 MPH EARLY IN THE MORNING BECOMING SOUTHWESTERLY IN
THE AFTERNOON. DAYTIME MINIMUM HUMIDITY IN THE LOWER 20S.
FORECASTER...NR
REQUESTED BY...SYLVESTER RUIZ
TYPE OF REQUEST...PRESCRIBED
.TAG 2613642.2/STO
.DELDT 05/16/26
.FORMATTERVERSION 2.0.0
.EMAIL SYLVESTER.RUIZ@USDA.GOV
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