472
FNUS85 KVEF 200944
FWLVEF
ECCDA DISCUSSIONS
NATIONAL WEATHER SERVICE LAS VEGAS NV
244 AM PDT THU AUG 20 2026
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## DISCUSSIONS FROM THE LATEST FWF BELOW ##
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..DISCUSSION FROM RNOFWFVEF
HOT AND DRY CONDITIONS CONTINUE TODAY BEFORE MONSOONAL MOISTURE
RETURNS TO THE REGION ON FRIDAY. AFTERNOON MIN RH VALUES FALL INTO
THE LOWER TEENS TO 20S WITH OVERNIGHT RECOVERIES ONLY IN THE
25-40 PERCENT RANGE. OVERNIGHT MAX RH VALUES SHOULD RISE TO 40-60+
PERCENT FRIDAY THROUGH THE WEEKEND, ESPECIALLY IN ARIZONA AND AT
HIGHER ELEVATIONS. ISOLATED STORM POSSIBLE TODAY IN WESTERN
ARIZONA, THEN INCREASING STORM CHANCES AND COVERAGE FURTHER NORTH
AND WEST FRIDAY. UNCERTAINTY IN THUNDERSTORM CHANCES AND COVERAGE
SUNDAY AS DRY AIR MOVES BACK INTO THE REGION. DIURNAL WIND
PATTERN EXPECTED EACH DAY WITH AFTERNOON WIND GUSTS IN THE 15-25
MPH RANGE.
..DISCUSSION FROM LAXFWFSGX
MONSOONAL MOISTURE WILL INCREASE TODAY AND FRIDAY WITH A SLIGHT
CHANCE OF AFTERNOON SHOWERS AND THUNDERSTORMS FOR THE MOUNTAINS AND
DESERTS. THERE WILL BE SOME DRYING OF THE MONSOONAL MOISTURE OVER
THE WEEKEND, THEN MAYBE A SLIGHT INCREASE AGAIN FOR EARLY NEXT WEEK.
HIGH TEMPERATURES WILL REMAIN AROUND 5 DEGREES ABOVE AVERAGE FOR
INLAND AREAS INTO NEXT WEEK WITH LOW TEMPERATURES 5 TO 10 DEGREES
ABOVE AVERAGE FOR INLAND AREAS.
..DISCUSSION FROM PHXFWFPSR
ELEVATED MOISTURE LEVELS WILL PERSIST TODAY WITH A TEMPORARY
REPRIEVE FROM THE EXTREME HEAT ACROSS THE EASTERN DISTRICTS. EXPECT
MOSTLY ISOLATED SHOWERS AND THUNDERSTORMS THIS AFTERNOON AND EARLY
EVENING OVER THE HIGH TERRAIN AREAS. DRIER AIR WILL THEN WORK ITS
WAY IN FOR FRIDAY AND SATURDAY WITH EVEN LOWER CHANCES FOR RAIN
WHILE TEMPERATURES HEAT BACK UP TO EXTREME LEVELS. MINRHS OF 20-30%
TODAY WILL LOWER TO 15-25% BEGINNING FRIDAY. WINDS SHOULD OVERALL
FOLLOW THE TYPICAL DIURNAL TENDENCIES WITH SOME MODEST AFTERNOON
UPSLOPE GUSTINESS.
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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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ECC027-210345-
SAN BERNARDINO ECC DISPATCH-
DISCUSSION FOR SAN BERNARDINO ECC DISPATCH
244 AM PDT THU AUG 20 2026
MONSOONAL MOISTURE RETURNS TO THE REGION TODAY HOWEVER STILL
EXPECT AFTERNOON MIN RH VALUES TO FALL INTO THE LOWER TEENS TO
20S WITH OVERNIGHT RECOVERIES IN THE 25-40 PERCENT RANGE.
ISOLATED TO SCATTERED STORMS POSSIBLE EACH AFTERNOON AND EVENING
OVER THE NEXT SEVERAL DAYS, WITH THE GREATEST CHANCES ALONG THE
HIGHER TERRAIN. UNCERTAINTY IN THUNDERSTORM CHANCES AND COVERAGE
SUNDAY AS DRY AIR MOVES BACK INTO THE REGION. DIURNAL WIND PATTERN
EXPECTED EACH DAY WIND GUSTS IN THE 20-30 MPH RANGE.
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