705
FNUS76 KSGX 060243
FWSSGX
SPOT FORECAST FOR MACKEY FIRE...FOREST SERVICE
NATIONAL WEATHER SERVICE SAN DIEGO CA
743 PM PDT SAT SEP 5 2026
FORECAST IS BASED ON FORECAST START TIME OF 2000 PDT ON SEPTEMBER 05.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
WINDS OUT OF THE SOUTH THIS EVENING 5-10 MPH WITH CHANCES FOR
LIGHT RAIN BEGINNING AROUND MIDNIGHT TONIGHT. RAIN CHANCES WILL
INCREASE EARLY SUNDAY MORNING FROM 27% TO 77% CHANCE BY 5AM. RAIN
CHANCES WILL CONTINUE THROUGH SUNDAY AFTERNOON WITH CHANCES FOR
SCATTERED THUNDERSTORMS. CHANCES WILL DECREASE SUNDAY EVENING. IF
STORMS FORM, EXPECT GUSTY ERRATIC WINDS AND LIGHTNING. RAIN
CHANCES DROP BELOW 15% LATE SUNDAY NIGHT INTO EARLY MONDAY. WINDS
OUTSIDE OF ANY THUNDERSTORM DEVELOPMENT WILL BE OUT OF THE SOUTH
AT 5-10 MPH THROUGH MONDAY.
REST OF TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (30-40 PERCENT) THEN BECOMING
CLOUDY (85-95 PERCENT). CHANCE OF SHOWERS LATE
IN THE EVENING. SHOWERS EARLY IN THE MORNING.
MIN TEMPERATURE.....AROUND 62.
MAX HUMIDITY........95 PERCENT.
EYE LEVEL WINDS.....SOUTH WINDS 5 TO 7 MPH. GUSTS UP TO 22 MPH
EARLY IN THE EVENING THEN 20 MPH OVERNIGHT.
WIND (20 FT)........
SLOPE/VALLEY.......SOUTH WINDS 7 TO 9 MPH. GUSTS UP TO 22 MPH
EARLY IN THE EVENING THEN 20 MPH OVERNIGHT.
RIDGETOP...........
CWR.................3 PERCENT INCREASING TO 77 PERCENT.
MIXING HEIGHT.......300 FT AGL.
TRANSPORT WINDS.....SOUTH 8 TO 13 MPH.
TIME (PDT) 8 PM 10 PM MIDNGT 2 AM 4 AM
SKY (%).........7 7 52 61 61
WEATHER COV..... CHANCE CHANCE CHANCE
WEATHER TYPE....NONE NONE RNSHWR RNSHWR RNSHWR
TSTM COV........
TEMP............66 66 66 66 66
RH..............43 40 41 50 59
20 FT WIND......S 9 S 8 S 7 S 8 S 8
20 FT WIND GUST.15 14 12 14 13
EYE LEVEL WIND..S 7 S 6 S 5 S 6 S 5
EYE LVL WND GST.11 10 9 10 9
RIDGETOP WIND...M M M M M
CWR.............0 0 20 20 20
SUNDAY
SKY/WEATHER.........MOSTLY CLOUDY (80-90 PERCENT). SHOWERS IN THE
MORNING, THEN SHOWERS LIKELY AND SCATTERED
THUNDERSTORMS LATE IN THE MORNING. CHANCE OF
SHOWERS LATE IN THE AFTERNOON.
MAX TEMPERATURE.....AROUND 66.
MIN HUMIDITY........68 PERCENT.
EYE LEVEL WINDS.....SOUTH WINDS UP TO 5 MPH.
WIND (20 FT)........
SLOPE/VALLEY.......SOUTH WINDS 6 TO 7 MPH. GUSTY AND ERRATIC WINDS
EXPECTED NEAR THUNDERSTORMS LATE IN THE
MORNING.
RIDGETOP...........
CWR.................77 PERCENT DECREASING TO 16 PERCENT LATE IN THE
AFTERNOON.
MIXING HEIGHT.......2800 FT AGL.
TRANSPORT WINDS.....SOUTH 8 TO 13 MPH.
TIME (PDT) 6 AM 8 AM 10 AM NOON 2 PM 4 PM
SKY (%).........92 100 100 97 86 86
WEATHER COV.....DEFNTE DEFNTE DEFNTE LIKELY LIKELY LIKELY
WEATHER TYPE....RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR
TSTM COV........ SCTTRD SCTTRD SCTTRD
TEMP............65 65 63 63 63 64
RH..............68 86 95 97 98 94
20 FT WIND......S 6 S 7 S 6 S 7 S 7 S 7
20 FT WIND GUST.11 12 11 12 13 12
EYE LEVEL WIND..S 4 S 5 S 4 S 5 S 5 S 4
EYE LVL WND GST.8 9 8 9 9 9
RIDGETOP WIND...M M M M M M
CWR.............80 80 80 70 70 70
SUNDAY NIGHT
SKY/WEATHER.........MOSTLY CLOUDY (65-75 PERCENT) THEN BECOMING
MOSTLY CLEAR (15-25 PERCENT). CHANCE OF SHOWERS
IN THE EVENING.
MIN TEMPERATURE.....AROUND 63.
MAX HUMIDITY........92 PERCENT.
EYE LEVEL WINDS.....SOUTH WINDS UP TO 5 MPH.
WIND (20 FT)........
SLOPE/VALLEY.......SOUTH WINDS 6 TO 7 MPH.
RIDGETOP...........
CWR.................16 PERCENT DECREASING TO 6 PERCENT LATE IN THE
EVENING.
MIXING HEIGHT.......500 FT AGL.
TRANSPORT WINDS.....SOUTH 8 TO 10 MPH.
TIME (PDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM
SKY (%).........71 71 71 19 19 19
WEATHER COV.....CHANCE CHANCE CHANCE
WEATHER TYPE....RNSHWR RNSHWR RNSHWR NONE NONE NONE
TSTM COV........
TEMP............64 63 65 65 65 65
RH..............90 88 77 71 72 74
20 FT WIND......S 7 S 6 S 6 S 7 S 7 S 7
20 FT WIND GUST.11 11 11 13 13 11
EYE LEVEL WIND..S 4 S 4 S 4 S 5 S 5 S 4
EYE LVL WND GST.8 8 8 9 9 8
RIDGETOP WIND...M M M M M M
CWR.............20 20 20 10 10 10
LABOR DAY
SKY/WEATHER.........MOSTLY SUNNY (15-25 PERCENT).
MAX TEMPERATURE.....AROUND 74.
MIN HUMIDITY........55 PERCENT.
EYE LEVEL WINDS.....SOUTHWEST WINDS 5 TO 6 MPH. GUSTS UP TO 21 MPH
IN THE AFTERNOON.
WIND (20 FT)........
SLOPE/VALLEY.......SOUTH WINDS 7 TO 9 MPH. GUSTS UP TO 21 MPH IN
THE AFTERNOON.
RIDGETOP...........
CWR.................3 PERCENT.
MIXING HEIGHT.......4800 FT AGL.
TRANSPORT WINDS.....SOUTH 8 TO 15 MPH.
TIME (PDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........22 22 22 22 22 18 18 18 18 18 18 23
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
TEMP............65 66 66 68 69 71 72 73 73 73 73 72
RH..............71 72 74 69 63 57 56 55 56 55 55 56
20 FT WIND DIR..S S S S S S S S S S SW SW
20 FT WIND SPD..7 7 8 8 7 7 7 8 8 8 9 9
20 FT WIND GUST.12 13 13 13 12 12 13 14 14 14 15 15
EYE LVL WND DIR.S S S S S S S S S S SW SW
EYE LVL WND SPD.5 5 5 5 5 5 5 6 6 6 6 6
EYE LVL WND GST.9 9 9 9 9 9 9 10 10 10 11 11
RIDGE WIND DIR..M M M M M M M M M M M M
RIDGE WIND SPD..M M M M M M M M M M M M
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
FORECASTER...LAUREN VILLAFANE
REQUESTED BY...B. GRANT
TYPE OF REQUEST...WILDFIRE
.TAG 2621306.0/SGX
.DELDT 09/05/26
.FORMATTERVERSION 2.0.0
.EMAIL MORGAN.DIEFENBACH@FIRE.CA.GOV,BRIAN.GRANT3@USDA.GOV,NLOPEZ@SBCFIRE.ORG,BRETT.TAYLOR@FIRE.CA.GOV,JASON.MAHAN@FIRE.CA.GOV
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