104
FNUS86 KSGX 170944
FWLSGX
ECCDA DISCUSSIONS
NATIONAL WEATHER SERVICE SAN DIEGO CA
244 AM PDT THU SEP 17 2026
ECC033-180345-
ORANGE ECC DISPATCH-
DISCUSSION FOR ORANGE ECC DISPATCH
244 AM PDT THU SEP 17 2026
HIGH TEMPERATURES FOR TODAY WILL REMAIN AS MUCH AS 5 TO 10 DEGREES
BELOW AVERAGE FOR THE INLAND VALLEYS WITH THE MARINE LAYER AROUND
3500 FEET DEEP INTO THIS MORNING. HIGH TEMPERATURES WILL WARM
SLIGHTLY FOR FRIDAY AND A FEW TO AROUND 5 DEGREES ON SATURDAY, THEN
COOL A FEW DEGREES EACH FOR SUNDAY AND MONDAY. THE MARINE LAYER WILL
BECOME GRADUALLY SHALLOWER FOR FRIDAY THROUGH THE WEEKEND. IT WILL
DRIER FOR THE DESERTS FOR FRIDAY THROUGH THE WEEKEND WITH LOWEST
RELATIVE HUMIDITY 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. A
WARMING TREND WILL BEGIN NEXT TUESDAY WITH HIGH TEMPERATURES
RETURNING TO AROUND AVERAGE ON WEDNESDAY.
ECC035-180345-
MONTE VISTA ECC DISPATCH-
244 AM PDT THU SEP 17 2026
HIGH TEMPERATURES FOR TODAY WILL REMAIN AS MUCH AS 5 TO 10 DEGREES
BELOW AVERAGE FOR THE INLAND VALLEYS WITH THE MARINE LAYER AROUND
3500 FEET DEEP INTO THIS MORNING. HIGH TEMPERATURES WILL WARM
SLIGHTLY FOR FRIDAY AND A FEW TO AROUND 5 DEGREES ON SATURDAY, THEN
COOL A FEW DEGREES EACH FOR SUNDAY AND MONDAY. THE MARINE LAYER WILL
BECOME GRADUALLY SHALLOWER FOR FRIDAY THROUGH THE WEEKEND. IT WILL
DRIER FOR THE DESERTS FOR FRIDAY THROUGH THE WEEKEND WITH LOWEST
RELATIVE HUMIDITY 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. A
WARMING TREND WILL BEGIN NEXT TUESDAY WITH HIGH TEMPERATURES
RETURNING TO AROUND AVERAGE ON WEDNESDAY.
ECC034-180345-
RIVERSIDE ECC DISPATCH-
244 AM PDT THU SEP 17 2026
..DISCUSSION FROM LAXFWFSGX
HIGH TEMPERATURES FOR TODAY WILL REMAIN AS MUCH AS 5 TO 10 DEGREES
BELOW AVERAGE FOR THE INLAND VALLEYS WITH THE MARINE LAYER AROUND
3500 FEET DEEP INTO THIS MORNING. HIGH TEMPERATURES WILL WARM
SLIGHTLY FOR FRIDAY AND A FEW TO AROUND 5 DEGREES ON SATURDAY, THEN
COOL A FEW DEGREES EACH FOR SUNDAY AND MONDAY. THE MARINE LAYER WILL
BECOME GRADUALLY SHALLOWER FOR FRIDAY THROUGH THE WEEKEND. IT WILL
DRIER FOR THE DESERTS FOR FRIDAY THROUGH THE WEEKEND WITH LOWEST
RELATIVE HUMIDITY 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. A
WARMING TREND WILL BEGIN NEXT TUESDAY WITH HIGH TEMPERATURES
RETURNING TO AROUND AVERAGE ON WEDNESDAY.
..DISCUSSION FROM PHXFWFPSR
OVERALL THERE ARE NO FIRE WEATHER CONCERNS THROUGH THE END OF THE
WEEK. LINGERING WET GROUNDS AND ELEVATED SURFACE MOISTURE WILL
CONTINUE INTO FRIDAY, BUT A DRYING TREND WILL BEGIN TODAY,
INITIALLY ALOFT, FOLLOWED BY A MORE SIGNIFICANT DRYING THIS
WEEKEND. AFTER SHOWERS DISSIPATE/MOVE OUT OF THE AREA THIS MORNING,
NO ADDITIONAL RAIN IS EXPECTED THROUGH AT LEAST THE START OF NEXT
WEEK. MINIMUM RH VALUES THIS AFTERNOON WILL BE AROUND 25-45%, WITH
DRIEST CONDITIONS IN SOUTHEAST CA. AS DRYING CONTINUES INTO FRIDAY,
MIN RHS WILL DIP TO 10-20% ACROSS SOUTHEAST CA AND SOUTHWEST AZ AND
25-35% ACROSS SOUTH-CENTRAL AZ. OVERNIGHT RECOVERIES WILL BE HIGHEST
TONIGHT AT 50-80%, THEN DROP TO 30-70% (DRIEST OUT NEAR THE LOWER
COLORADO RIVER) FRIDAY NIGHT. WINDS WILL MOSTLY FOLLOW TYPICAL
DIURNAL PATTERNS WITH MODEST AFTERNOON UPSLOPE/UPVALLEY GUSTINESS
(15-25 MPH).
..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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