427
FNUS86 KSGX 161131
FWLSGX
ECCDA DISCUSSIONS
NATIONAL WEATHER SERVICE SAN DIEGO CA
431 AM PDT WED SEP 16 2026
ECC033-170545-
ORANGE ECC DISPATCH-
DISCUSSION FOR ORANGE ECC DISPATCH
431 AM PDT WED SEP 16 2026
HIGH TEMPERATURES WILL REMAIN AS MUCH AS 5 TO 10 DEGREES BELOW
AVERAGE FOR THE MOUNTAINS AND INLAND VALLEYS THROUGH THURSDAY. HIGH
TEMPERATURES WILL WARM A FEW DEGREES EACH FOR FRIDAY AND SATURDAY
AND COOL A FEW DEGREES EACH FOR SUNDAY AND MONDAY. A MARINE LAYER
NEAR 2500 TO 3000 FEET DEEP INTO EARLY THURSDAY WILL BECOME
SHALLOWER FOR THE WEEKEND INTO NEXT WEEK. IT WILL DRIER INLAND FOR
FRIDAY THROUGH THE WEEKEND WITH LOWEST RELATIVE HUMIDITY FOR THE
DESERTS FALLING TO 10 TO 15 PERCENT EACH AFTERNOON, BUT WITH MUCH
WEAKER SOUTHWEST TO WEST WINDS DURING THE AFTERNOON AND EVENING,
MOSTLY GUSTING TO 15 TO 25 MPH FOR SATURDAY AND SUNDAY.
ECC035-170545-
MONTE VISTA ECC DISPATCH-
431 AM PDT WED SEP 16 2026
HIGH TEMPERATURES WILL REMAIN AS MUCH AS 5 TO 10 DEGREES BELOW
AVERAGE FOR THE MOUNTAINS AND INLAND VALLEYS THROUGH THURSDAY. HIGH
TEMPERATURES WILL WARM A FEW DEGREES EACH FOR FRIDAY AND SATURDAY
AND COOL A FEW DEGREES EACH FOR SUNDAY AND MONDAY. A MARINE LAYER
NEAR 2500 TO 3000 FEET DEEP INTO EARLY THURSDAY WILL BECOME
SHALLOWER FOR THE WEEKEND INTO NEXT WEEK. IT WILL DRIER INLAND FOR
FRIDAY THROUGH THE WEEKEND WITH LOWEST RELATIVE HUMIDITY FOR THE
DESERTS FALLING TO 10 TO 15 PERCENT EACH AFTERNOON, BUT WITH MUCH
WEAKER SOUTHWEST TO WEST WINDS DURING THE AFTERNOON AND EVENING,
MOSTLY GUSTING TO 15 TO 25 MPH FOR SATURDAY AND SUNDAY.
ECC034-170545-
RIVERSIDE ECC DISPATCH-
431 AM PDT WED SEP 16 2026
..DISCUSSION FROM LAXFWFSGX
HIGH TEMPERATURES WILL REMAIN AS MUCH AS 5 TO 10 DEGREES BELOW
AVERAGE FOR THE MOUNTAINS AND INLAND VALLEYS THROUGH THURSDAY. HIGH
TEMPERATURES WILL WARM A FEW DEGREES EACH FOR FRIDAY AND SATURDAY
AND COOL A FEW DEGREES EACH FOR SUNDAY AND MONDAY. A MARINE LAYER
NEAR 2500 TO 3000 FEET DEEP INTO EARLY THURSDAY WILL BECOME
SHALLOWER FOR THE WEEKEND INTO NEXT WEEK. IT WILL DRIER INLAND FOR
FRIDAY THROUGH THE WEEKEND WITH LOWEST RELATIVE HUMIDITY FOR THE
DESERTS FALLING TO 10 TO 15 PERCENT EACH AFTERNOON, BUT WITH MUCH
WEAKER SOUTHWEST TO WEST WINDS DURING THE AFTERNOON AND EVENING,
MOSTLY GUSTING TO 15 TO 25 MPH FOR SATURDAY AND SUNDAY.
..DISCUSSION FROM PHXFWFPSR
PERIODS OF SCATTERED TO WIDESPREAD SHOWERS AND THUNDERSTORMS ARE
EXPECTED TODAY, FOCUSING MOSTLY ACROSS THE EASTERN DISTRICTS THIS
AFTERNOON THROUGH THIS EVENING. THERE WILL BE A HEAVY RAINFALL AND
FLOOD THREAT WITH THE ACTIVITY. MOISTURE LEVELS WILL BE ELEVATED
MOST AREAS, HIGHEST ACROSS EASTERN DISTRICTS, WHERE MINIMUM RH THIS
AFTERNOON WILL BE AROUND 50-60%. MINIMUM RHS WILL BE LOWEST ACROSS
SOUTHEAST CA, WITH VALUES AROUND 20-30%. A DRYING TREND WILL BEGIN
THURSDAY WHICH WILL LIMIT RAIN CHANCES ALMOST EXCLUSIVELY TO THE
NORTHERN AND EASTERN AZ HIGH TERRAIN IN THE AFTERNOON. IT WILL TAKE
A DAY TO SCOUR OUT THE LOW LEVEL MOISTURE, SO MINIMUM RHS THURSDAY
AFTERNOON WILL STILL BE AROUND 40-50% ACROSS EASTER DISTRICTS TO
25-35% ACROSS THE WEST. WINDS WILL FAVOR THE SOUTH TO SOUTHEAST
OVER MUCH OF THE AREA THROUGH TODAY WITH GUSTS OF 20-30 MPH AT
TIMES ACROSS SOUTHWEST AZ AND SOUTHEAST CA. IN THE FOLLOWING DAYS
WINDS WILL RETURN TO A MORE TYPICAL DIURNAL WITH MODEST AFTERNOON
UPSLOPE GUSTINESS.
..THUNDERSTORMS IMPLY GUSTY WINDS
NOTE...ADDITIONAL FIRE WEATHER FORECAST INFORMATION CAN BE FOUND IN
THE AREA FORECAST DISCUSSION. SEE PRODUCT PHXAFDPSR.
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