947
FNUS85 KVEF 172121
FWLVEF
ECCDA DISCUSSIONS
NATIONAL WEATHER SERVICE LAS VEGAS NV
221 PM PDT THU SEP 17 2026
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## DISCUSSIONS FROM THE LATEST FWF BELOW ##
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..DISCUSSION FROM RNOFWFVEF
LINGERING MONSOONAL MOISTURE TODAY KEEPS MIN RH ELEVATED IN THE
30-45% RANGE FOR MOST OF THE MOHAVE DESERT, WITH THE EXCEPTION OF
INYO AND ESMERALDA COUNTIES WHERE MIN RH FALLS TO 10-15%. MUCH
DRIER AIR ADVECTS EASTWARD TOMORROW INTO THE WEEKEND WITH
WIDESPREAD MIN RH OF 8-15% WITH OVERNIGHT RECOVERY RH OF 25-35%.
DAILY AFTERNOON WIND GUSTS 15-25 MPH EXPECTED FROM THE
SOUTH-SOUTHWEST THROUGH THE WEEKEND. PRECIPITATION CHANCES RETURN
EARLY NEXT WEEK, WITH LOW CONFIDENCE IN LOCATIONS AT THIS TIME.
..DISCUSSION FROM LAXFWFSGX
HIGH TEMPERATURES FOR TODAY WILL REMAIN AS MUCH AS 5 TO 10 DEGREES
BELOW AVERAGE FOR THE INLAND VALLEYS THANKS TO THE MARINE LAYER
STRETCHING WELL INLAND. A SLIGHT WARMING AND DRYING TREND INTO THIS
WEEKEND TAKES TEMPERATURES BACK TO NEAR NORMAL FOR SATURDAY AND
SUNDAY AS THE MARINE LAYER BECOMES GRADUALLY SHALLOWER. AFTERNOON
HUMIDITY ALONG THE COASTAL MOUNTAIN SLOPES WILL BE ALLOWED TO FALL
TO 20-30 PERCENT BY SATURDAY AFTERNOON. WINDS ALSO WILL CONTINUE TO
TREND WEAKER, WITH SOUTHWEST TO WEST WINDS DURING THE AFTERNOON AND
EVENING, MOSTLY GUSTING TO 15 TO 25 MPH FOR SATURDAY AND SUNDAY.
AFTER A BRIEFLY COOLER DAY ON MONDAY, ANOTHER WARMING TREND WILL
BEGIN NEXT TUESDAY WITH HIGH TEMPERATURES RETURNING ABOVE AVERAGE
BY WEDNESDAY.
..DISCUSSION FROM PHXFWFPSR
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. MINIMUM RH
VALUES THIS AFTERNOON WILL BE AROUND 25-45%, WITH DRIEST CONDITIONS
IN SOUTHEAST CA. AS DRYING CONTINUES INTO FRIDAY, MINRHS 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. BY THIS WEEKEND, MUCH OF THE LOWER DESERTS
WILL SEE AFTERNOON MINRHS DIP INTO THE TEENS. WINDS WILL MOSTLY
FOLLOW TYPICAL DIURNAL PATTERNS WITH MODEST AFTERNOON
UPSLOPE/UPVALLEY GUSTINESS (15-25 MPH).
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## AFTER REVIEWING THE FWF DISCUSSIONS (ABOVE) - COMPLETE ##
## THE DISCUSSION (BELOW) FOR THE ECCDA FORECAST ##
## WHEN DONE CLICK TRANSMIT, PRODUCT SENT AS KVEFFWLVEF ##
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ECC027-181530-
SAN BERNARDINO ECC DISPATCH-
DISCUSSION FOR SAN BERNARDINO ECC DISPATCH
221 PM PDT THU SEP 17 2026
LINGERING MONSOONAL MOISTURE TODAY KEEPS MIN RH ELEVATED IN THE
30-45% RANGE FOR EASTERN SAN BERNARDINO COUNTY, WHILE ACROSS THE
WESTERN PORTION OF THE COUNTY MIN RH FALLS TO 10-15%. MUCH DRIER
AIR ADVECTS EASTWARD TOMORROW INTO THE WEEKEND WITH WIDESPREAD MIN
RH OF 8-15% WITH OVERNIGHT RECOVERY RH OF 25-40%. DAILY AFTERNOON
AND EVENING WIND GUSTS 15-25 MPH EXPECTED THROUGH THE WEEKEND.
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