581
FNUS76 KSTO 280817
FWSSTO
SPOT FORECAST FOR C-FALLER INITIAL CLASS...CALFIRE
NATIONAL WEATHER SERVICE SACRAMENTO CA
117 AM PDT THU MAY 28 2026
FORECAST IS BASED ON FORECAST START TIME OF 0800 PDT ON MAY 28.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
ACTIVE WEATHER CONTINUES THROUGH THE END OF THE WEEK AS A
STATIONARY WEATHER SYSTEM BRINGS SHOWER AND ISOLATED THUNDERSTORM
CHANCES. HIGHEST CHANCES FOR SHOWERS/THUNDERSTORMS IN THE VICINITY
ARE EXPECTED TODAY. AFTER A BRIEF LULL IN ACTIVITY THIS MORNING,
CHANCES RAMP UP THROUGH THE AFTERNOON. SHOWERS/ISOLATED
THUNDERSTORMS LOOK TO INCREASE IN COVERAGE FROM 1300 PDT ONWARD,
WITH HIGHEST THUNDERSTORM CHANCES AT THIS TIME BETWEEN 1300 PDT
AND 1800 PDT. PRIMARY HAZARDS WITH ANY THUNDERSTORMS THAT DEVELOP
WILL BE GUSTY AND ERRATIC WINDS, LIGHTNING, SMALL HAIL, AND HEAVY
RAIN.
SHOWERS LIKELY CONTINUE THROUGH THE EVENING AND OVERNIGHT HOURS,
GRADUALLY TAPERING OFF EARLY FRIDAY MORNING. THE WEATHER SYSTEM IS
THEN EXPECTED TO GRADUALLY PUSH EASTWARD FRIDAY INTO THE WEEKEND.
ALTHOUGH AN ISOLATED SHOWER OR THUNDERSTORM CANNOT BE COMPLETELY
RULED OUT ON FRIDAY AFTERNOON, CHANCES ONLY SIT AROUND 10 PERCENT
AT THIS TIME. OTHERWISE, A TREND TOWARD WARMER AND DRIER WEATHER
IS EXPECTED IN THE VICINITY THROUGH THE WEEKEND.
REST OF TODAY
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY. RAIN
AND SLIGHT CHANCE OF THUNDERSTORMS IN THE
AFTERNOON.
CHANCE OF PCPN......40 PERCENT IN THE MORNING, INCREASING TO
80 PERCENT IN THE AFTERNOON.
MAX TEMPERATURE.....50-55.
MIN HUMIDITY........69-74 PERCENT.
SURFACE WINDS (MPH).EAST WINDS 5 TO 6 MPH SHIFTING TO THE WEST 6 TO
9 MPH LATE IN THE AFTERNOON.
WIND (20 FT)........
VALLEY/LWR SLOPES..EAST WINDS 5 TO 6 MPH SHIFTING TO THE WEST 5 TO
7 MPH LATE IN THE AFTERNOON. GUSTY AND ERRATIC
WINDS EXPECTED NEAR THUNDERSTORMS LATE IN THE
AFTERNOON.
RIDGE/UPPER SLOPE..EAST AROUND 7 MPH SHIFTING TO THE WEST LATE IN
THE AFTERNOON.
MIXING HEIGHT.......RISING TO AROUND 3700 FT AGL.
TRANSPORT WINDS.....EAST AROUND 7 MPH SHIFTING TO THE WEST LATE IN
THE AFTERNOON.
PCPN AMOUNT.........0.10 INCHES.
SNOWFALL AMOUNT.....0.0 INCHES.
CHANCE OF THUNDER...UP TO 25 PERCENT IN THE AFTERNOON.
TIME (PDT) 8 AM 10 AM NOON 2 PM 4 PM
SKY COVER.......PCLDY PCLDY PCLDY MCLDY MCLDY
CHC OF PCPN (%).0 0 20 40 60
CHC OF THDR (%).0 0 10 20 25
TEMP............43 46 50 51 51
RH..............80 76 73 71 81
VL/LS WIND......E 6 E 6 NE 6 NW 6 W 6
VL/LS WIND GUST.10 10 12 12 13
SURFACE WIND....E 6 E 6 NE 6 NW 6 W 6
SURFACE WND GST.10 10 12 12 13
RIDGE/UPSLP SPD.E 7 E 7 N 8 W 10 W 10
MIX HGT (FT)....1800 1800 3700 3000 3000
TRANSPORT WIND..E 7 E 7 N 8 W 10 W 10
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY. RAIN LIKELY IN THE EVENING, THEN
CHANCE OF RAIN OVERNIGHT.
CHANCE OF PCPN......60 PERCENT IN THE EVENING, DECREASING TO 15
PERCENT OVERNIGHT.
MIN TEMPERATURE.....40-45.
MAX HUMIDITY........83-88 PERCENT.
SURFACE WINDS (MPH).WEST WINDS 5 TO 9 MPH SHIFTING TO THE NORTHWEST
UP TO 5 MPH EARLY IN THE MORNING.
WIND (20 FT)........
VALLEY/LWR SLOPES..WEST WINDS 5 TO 9 MPH SHIFTING TO THE NORTHWEST
UP TO 5 MPH EARLY IN THE MORNING.
RIDGE/UPPER SLOPE..WEST 7 TO 12 MPH.
MIXING HEIGHT.......FALLING TO AROUND 600 FT AGL.
TRANSPORT WINDS.....WEST 7 TO 12 MPH.
PCPN AMOUNT.........0.05 INCHES.
SNOWFALL AMOUNT.....0.0 INCHES.
CHANCE OF THUNDER...12 PERCENT.
TIME (PDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM
SKY COVER.......MCLDY MCLDY MCLDY CLOUDY MCLDY MCLDY
CHC OF PCPN (%).60 30 50 50 30 10
CHC OF THDR (%).10 10 10 0 0 0
TEMP............49 46 45 46 45 44
RH..............85 85 85 79 85 83
VL/LS WIND......W 8 W 9 W 7 W 7 W 7 W 6
VL/LS WIND GUST.15 16 13 12 12 10
SURFACE WIND....W 8 W 9 W 7 W 7 W 7 W 6
SURFACE WND GST.15 16 13 12 12 10
RIDGE/UPSLP SPD.W 12 W 9 W 9 W 7 W 8 W 8
MIX HGT (FT)....1900 900 900 600 600 600
TRANSPORT WIND..W 12 W 9 W 9 W 7 W 8 W 8
FRIDAY
SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN LATE IN THE
AFTERNOON.
CHANCE OF PCPN......10 PERCENT.
MAX TEMPERATURE.....50-55.
MIN HUMIDITY........80-85 PERCENT.
SURFACE WINDS (MPH).NORTHWEST WINDS UP TO 5 MPH EARLY IN THE
MORNING BECOMING LIGHT, THEN BECOMING EAST UP
TO 6 MPH LATE IN THE MORNING.
WIND (20 FT)........
VALLEY/LWR SLOPES..NORTHWEST WINDS UP TO 5 MPH EARLY IN THE
MORNING BECOMING LIGHT, THEN BECOMING EAST UP
TO 6 MPH LATE IN THE MORNING.
RIDGE/UPPER SLOPE..WEST AROUND 7 MPH SHIFTING TO THE NORTH EARLY
IN THE MORNING, THEN SHIFTING TO THE WEST LATE
IN THE AFTERNOON.
MIXING HEIGHT.......RISING TO AROUND 3100 FT AGL.
TRANSPORT WINDS.....WEST AROUND 7 MPH SHIFTING TO THE NORTH EARLY
IN THE MORNING, THEN SHIFTING TO THE WEST LATE
IN THE AFTERNOON.
PCPN AMOUNT.........0.01 INCHES.
SNOWFALL AMOUNT.....0.0 INCHES.
CHANCE OF THUNDER...7 PERCENT.
TIME (PDT) 6 AM 9 AM NOON 3 PM
SKY COVER.......MCLDY MCLDY MCLDY MCLDY
CHC OF PCPN (%).0 0 0 20
CHC OF THDR (%).0 0 0 10
TEMP............44 45 50 51
RH..............83 83 86 86
VL/LS WIND......NW 5G9 NE 3G9 E 6G13 E 5G10
SURFACE WIND....NW 5G9 NE 3G9 E 6G13 E 5G10
TRANSPORT WIND..W 7 N 6 N 7 N 6
MIX HGT (FT)....900 1700 3100 2800
TRANSPORT WIND..W 7 N 6 N 7 N 6
FORECAST DAYS 3 THROUGH 5
SATURDAY
PARTLY CLOUDY. SLIGHT CHANCE OF RAIN. LOWS IN THE LOWER 40S.
HIGHS IN THE UPPER 50S. LIGHT WINDS.
SUNDAY
MOSTLY CLEAR. LOWS IN THE MID 40S. HIGHS IN THE LOWER 60S.
NORTHWEST WINDS AROUND 5 MPH.
MONDAY
CLEAR. LOWS IN THE LOWER 50S. HIGHS IN THE UPPER 60S. LIGHT
WINDS.
FORECASTER...NR
REQUESTED BY...FC FAULKNER
TYPE OF REQUEST...OTHER
.TAG 2614558.1/STO
.DELDT 05/28/26
.FORMATTERVERSION 2.0.0
.EMAIL JOSHUA.FAULKNER@FIRE.CA.GOV
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