830
FNUS76 KSGX 121729
FWSSGX
SPOT FORECAST FOR LOST CREEK 1 & 2 INCIDENT...USFS LOST CREEK IC
NATIONAL WEATHER SERVICE SAN DIEGO CA
1029 AM PDT WED AUG 12 2026
FORECAST IS BASED ON FORECAST START TIME OF 0600 PDT ON AUGUST 13.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
WINDS SHIFTING WESTERLY EARLY THIS AFTERNOON WITH INTERMITTENT
GUSTS UP TO 12-14 MPH. WINDS WEAKEN SUBSTANTIALLY AFTER SUNSET.
INCREASING CLOUD COVER THIS AFTERNOON AND TONIGHT WITH GENERALLY
FULL CLOUD COVER BY THURSDAY MORNING. WINDS WILL FOLLOW A SIMILAR
DIURNAL PATTERN FOR THURSDAY AND FRIDAY - LIGHT AND VARIABLE IN
THE MORNING, SWITCHING TO PERSISTENT WESTERLY WITH GUSTS AROUND 12
MPH AFTER NOON. TEMPERATURES WILL BE SIGNIFICANTLY COOLER ON
THURSDAY, WITH BELOW-NORMAL TEMPERATURES PREVAILING INTO FRIDAY.
VERY GOOD TO EXCELLENT HUMIDITY RECOVERY OVERNIGHT WITH MINIMUM RH
IN THE AFTERNOONS AROUND 50%. NO PRECIPITATION IS EXPECTED NEAR
THE FIRE THURSDAY OR FRIDAY, BUT A NEARBY THUNDERSTORM THIS
AFTERNOON MAY BRIEFLY BRING GUSTY AND ERRATIC WINDS.
THURSDAY
SKY/WEATHER.........MOSTLY CLOUDY (80-90 PERCENT).
MAX TEMPERATURE.....AROUND 66.
MIN HUMIDITY........50 PERCENT.
EYE LEVEL WINDS.....LIGHT WINDS BECOMING WEST UP TO 5 MPH.
WIND (20 FT)........
SLOPE/VALLEY.......WEST WINDS 5 TO 7 MPH EARLY IN THE MORNING
BECOMING LIGHT, THEN BECOMING WEST 5 TO 7 MPH
LATE IN THE MORNING.
RIDGETOP...........SOUTHWEST 5 TO 10 MPH.
CWR.................5 PERCENT.
MIXING HEIGHT.......3800 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 5 TO 12 MPH.
TIME (PDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........72 72 94 94 94 88 88 88 83 83 83 87
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
TEMP............58 59 60 61 62 63 64 64 63 65 63 62
RH..............56 57 56 53 51 50 52 52 56 53 57 59
20 FT WIND DIR..W NW N NW NW NW NW W W W W W
20 FT WIND SPD..1 1 1 2 3 5 6 6 6 7 7 7
20 FT WIND GUST.4 5 6 7 8 9 10 10 11 11 11 10
EYE LVL WND DIR.SW SW W W W W W W W W W W
EYE LVL WND SPD.1 1 1 2 4 4 5 5 5 5 5 4
EYE LVL WND GST.3 4 4 5 6 7 7 7 8 8 8 7
RIDGE WIND DIR..S SW SW SW SW S SW SW SW SW W W
RIDGE WIND SPD..10 10 10 10 10 5 10 10 10 10 10 10
CWR.............0 0 0 0 0 10 10 10 10 10 10 0
THURSDAY NIGHT
SKY/WEATHER.........CLOUDY (90-100 PERCENT).
MIN TEMPERATURE.....AROUND 55.
MAX HUMIDITY........86 PERCENT.
EYE LEVEL WINDS.....LIGHT WINDS.
WIND (20 FT)........
SLOPE/VALLEY.......WEST WINDS AROUND 6 MPH EARLY IN THE EVENING
BECOMING LIGHT.
RIDGETOP...........NORTH AROUND 0 MPH SHIFTING TO THE WEST.
CWR.................1 PERCENT.
MIXING HEIGHT.......300 FT AGL.
TRANSPORT WINDS.....SOUTH 3 TO 8 MPH DECREASING TO 3 TO 6 MPH IN
THE LATE EVENING AND OVERNIGHT.
TIME (PDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM
SKY (%).........87 87 87 96 96 96
WEATHER COV.....
WEATHER TYPE....NONE NONE NONE NONE NONE NONE
TSTM COV........
TEMP............60 55 56 57 57 57
RH..............68 86 70 61 56 52
20 FT WIND......W 6 S 1 N 0 S 1 SW 1 SW 1
20 FT WIND GUST.8 6 5 4 4 5
EYE LEVEL WIND..W 3 SW 2 SW 1 SW 1 SW 1 SW 1
EYE LVL WND GST.6 5 4 3 3 4
RIDGETOP WIND...N 0 W 5 W 5 W 5 SW 5 SW 5
CWR.............0 0 0 0 0 0
FRIDAY
SKY/WEATHER.........CLOUDY (95-100 PERCENT) THEN BECOMING MOSTLY
SUNNY (15-25 PERCENT).
MAX TEMPERATURE.....AROUND 67.
MIN HUMIDITY........43 PERCENT.
EYE LEVEL WINDS.....LIGHT WINDS BECOMING SOUTHWEST UP TO 5 MPH IN
THE LATE MORNING AND AFTERNOON.
WIND (20 FT)........
SLOPE/VALLEY.......SOUTHWEST WINDS 5 TO 8 MPH EARLY IN THE MORNING
BECOMING LIGHT, THEN BECOMING SOUTHWEST 5 TO 8
MPH IN THE LATE MORNING AND AFTERNOON.
RIDGETOP...........
CWR.................7 PERCENT.
MIXING HEIGHT.......6900 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 6 TO 12 MPH.
TIME (PDT) 6 AM 9 AM NOON 3 PM
SKY (%).........100 100 24 24
WEATHER COV.....
WEATHER TYPE....NONE NONE NONE NONE
TSTM COV........
TEMP............57 61 64 64
RH..............49 46 46 51
20 FT WIND......SW 1G6 S 3G7 SW 7G10 SW 7G11
EYE LEVEL WIND..SW 1G4 S 3G5 S 5G7 SW 5G8
RIDGETOP WIND...M M M M
CWR.............0 0 10 10
FORECASTER...SAMANTHA ZUBER
REQUESTED BY...CAPTAIN 17 / LOST CREEK IC
TYPE OF REQUEST...WILDFIRE
.TAG 2619538.0/SGX
.DELDT 08/12/26
.FORMATTERVERSION 2.0.0
.EMAIL CURTIS.COWARD@USDA.GOV
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