024
FNUS76 KSGX 121724
FWSSGX
SPOT FORECAST FOR LAKE PERRIS PRESCRIBED BURN 5.2026...CALIFORNIA STATE PARKS
NATIONAL WEATHER SERVICE SAN DIEGO CA
1024 AM PDT TUE MAY 12 2026
FORECAST IS BASED ON IGNITION TIME OF 0700 PDT ON MAY 13.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
A DEEP MARINE LAYER WEDNESDAY MORNING WILL SPREAD HIGHER COASTAL
HUMIDITY INLAND, WITH FORECAST RELATIVE HUMIDITY VALUES WEDNESDAY
MORNING ABOVE 90 PERCENT. HUMIDITY WILL FALL TO 35/40 PERCENT BY
WEDNESDAY AFTERNOON WITH SIMILAR HUMIDITY RECOVERY WEDNESDAY NIGHT
INTO THURSDAY MORNING. OTHERWISE HIGH TEMPERATURES WILL BE NEAR
80, WITH PREDOMINANTLY ONSHORE WINDS FROM THE WEST, STRONGEST IN
THE AFTERNOONS
WEDNESDAY
SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT) BECOMING
SUNNY (0-5 PERCENT). PATCHY FOG IN THE MORNING.
MAX TEMPERATURE.....AROUND 79.
MIN HUMIDITY........36 PERCENT.
EYE LEVEL WINDS.....LIGHT WINDS IN THE MORNING BECOMING WEST UP TO 3 MPH WITH
GUSTS TO AROUND 7 MPH IN THE AFTERNOON.
WIND (20 FT)........
SLOPE/VALLEY.......LIGHT WINDS IN THE MORNING BECOMING WEST WINDS 5 TO 9 MPH
WITH GUSTS TO AROUND 15 MPH IN THE AFTERNOON.
RIDGETOP...........WEST 5 TO 10 MPH.
CWR.................0 PERCENT.
MIXING HEIGHT.......3900 FT AGL.
TRANSPORT WINDS.....WEST 3 TO 7 MPH UP TO 10 MPH IN THE AFTERNOON.
TIME (PDT) 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........76 55 55 55 1 1 1 0 0 0 0
WEATHER COV.....PTY PTY PTY PTY
WEATHER TYPE....FOG FOG FOG FOG
TEMP............54 56 59 63 68 72 76 78 79 80 79
RH..............98 94 84 72 55 47 41 38 37 36 39
20 FT WIND DIR..SW SW SW SW SW W W W W W W
20 FT WIND SPD..1 1 1 2 3 5 6 6 7 8 9
20 FT WIND GUST.4 4 4 6 6 7 7 11 12 14 15
EYE LVL WND DIR.SW SW SW SW SW W W W W W W
EYE LVL WND SPD.1 1 1 1 2 2 2 2 3 3 3
EYE LVL WND GST.2 2 2 3 3 3 3 4 5 7 7
RIDGE WIND DIR..SW SW SW SW SW W W W W W W
RIDGE WIND SPD..5 5 5 5 5 5 5 10 10 10 10
CWR.............0 0 0 0 0 0 0 0 0 0 0
WEDNESDAY NIGHT
SKY/WEATHER.........MOSTLY CLEAR (15-25 PERCENT).
MIN TEMPERATURE.....AROUND 52.
MAX HUMIDITY........97 PERCENT.
EYE LEVEL WINDS.....WEST WINDS UP TO 3 MPH WITH GUSTS TO AROUND 5
MPH IN THE EVENING BECOMING LIGHT.
WIND (20 FT)........
SLOPE/VALLEY.......WEST WINDS 5 TO 8 MPH WITH GUSTS TO AROUND 14
MPH IN THE EVENING BECOMING LIGHT.
RIDGETOP...........WEST AROUND 5 MPH.
CWR.................0 PERCENT.
MIXING HEIGHT.......200 FT AGL.
TRANSPORT WINDS.....WEST 1 TO 10 MPH.
TIME (PDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........0 0 12 12 12 21 21 21 28 28 28 35
TEMP............77 75 70 68 65 63 61 59 57 55 54 54
RH..............42 45 52 58 65 71 75 80 85 90 93 95
20 FT WIND DIR..W W W W W W W W W W W W
20 FT WIND SPD..8 8 7 6 5 3 3 3 2 2 2 1
20 FT WIND GUST.14 13 11 10 8 6 6 6 5 5 4 4
EYE LVL WND DIR.W W W W W W W W W W W W
EYE LVL WND SPD.3 3 3 2 2 2 1 1 1 1 1 1
EYE LVL WND GST.5 5 4 3 3 3 3 3 2 2 2 2
RIDGE WIND DIR..W W W W W W W W W W W W
RIDGE WIND SPD..5 5 5 5 5 5 5 5 5 5 5 5
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
THURSDAY
SKY/WEATHER.........PARTLY CLOUDY (30-40 PERCENT) THEN BECOMING
SUNNY (0-10 PERCENT).
MAX TEMPERATURE.....AROUND 83.
MIN HUMIDITY........37 PERCENT.
EYE LEVEL WINDS.....LIGHT WINDS BECOMING WEST WITH GUSTS UP TO 5 MPH IN THE
AFTERNOON.
WIND (20 FT)........
SLOPE/VALLEY.......LIGHT WINDS BECOMING WEST 5 TO 8 MPH WITH GUSTS TO 13 MPH
IN THE AFTERNOON.
RIDGETOP...........WEST 5 TO 10 MPH.
CWR.................0 PERCENT.
MIXING HEIGHT.......4200 FT AGL.
TRANSPORT WINDS.....WEST 1 TO 9 MPH.
TIME (PDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........35 35 35 35 35 6 6 6 6 6 6 3
TEMP............53 54 57 61 66 71 75 78 80 81 81 80
RH..............97 93 84 72 59 50 44 39 37 37 38 40
20 FT WIND DIR..W W N W W W W W W W W W
20 FT WIND SPD..1 1 1 1 1 2 3 5 6 8 8 7
20 FT WIND GUST. 4 5 6 8 10 11 12 13 13
EYE LVL WND DIR.W W W W W W W W W W W W
EYE LVL WND SPD.1 1 1 1 1 2 2 2 2 3 3 3
EYE LVL WND GST. 2 2 3 3 3 3 5 5 5
RIDGE WIND DIR..W W W W W W W W W W W W
RIDGE WIND SPD..10 10 10 10 5 5 5 5 10 5 5 5
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
FORECASTER...CASEY OSWANT
REQUESTED BY...KEN KIETZER
TYPE OF REQUEST...PRESCRIBED
.TAG 2613459.0/SGX
.DELDT 05/12/26
.FORMATTERVERSION 2.0.0
.EMAIL KEN.KIETZER@PARKS.CA.GOV
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