002
FNUS85 KVEF 172039
FWLVEF
ECCDA DISCUSSIONS
NATIONAL WEATHER SERVICE LAS VEGAS NV
139 PM PDT MON AUG 17 2026
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## DISCUSSIONS FROM THE LATEST FWF BELOW ##
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..DISCUSSION FROM RNOFWFVEF
THE WARMING AND DRYING TREND CONTINUES, WITH ABOVE NORMAL
TEMPERATURES RETURNING AS MIN RHS FALL TO 5-15% ACROSS LOWER
ELEVATIONS AND 20-25% ACROSS THE MOUNTAINS THROUGH MIDWEEK.
DIURNAL/TERRAIN-DRIVEN 20FT WINDS AROUND 5-10 MPH ARE EXPECTED,
WITH OCCASIONAL HIGHER GUSTS IN THE AFTERNOONS. THERE IS A VERY
LOW CHANCE OF ISOLATED THUNDERSTORMS TODAY, MAINLY OVER THE
SOUTHERN GREAT BASIN AND NORTHWESTERN ARIZONA, WITH GUSTY WINDS
AND LIGHTNING STRIKES THE MAIN CONCERNS. STORM CHANCES RETURN LATE
WEEK INTO THE WEEKEND AS MONSOONAL MOISTURE INCREASES.
..DISCUSSION FROM LAXFWFSGX
A SLOW WARMING TREND WILL DEVELOP THROUGH THURSDAY WHEN HIGHS WILL
BE GENERALLY 3 TO 7 DEGREES ABOVE NORMAL, FOLLOWED BY A DEGREE OR
TWO OF COOLING EACH DAY THROUGH NEXT WEEKEND. DRY WEATHER WILL
PREVAIL THROUGH AT LEAST WEDNESDAY. THERE IS A 10-15% CHANCE OF
SHOWERS OVER THE MOUNTAINS ON THURSDAY AFTERNOON, INCREASING TO A
15-20% CHANCE OF SHOWERS AND THUNDERSTORMS OVER THE MOUNTAINS AND
ADJACENT DESERTS EACH AFTERNOON FOR FRIDAY THROUGH THE WEEKEND.
..DISCUSSION FROM PHXFWFPSR
ABOVE NORMAL TEMPERATURES WITH A STEADY INCREASE IN LOW-LEVEL
MOISTURE IS ANTICIPATED OVER THE NEXT FEW DAYS. MOST LOWER DESERT
COMMUNITIES WILL SEE TEMPERATURES TOPPING OUT AROUND 110-113
DEGREES. WIDELY SCATTERED SHOWERS AND THUNDERSTORMS ARE FORECAST
FOR THE HIGH TERRAIN THROUGH TUESDAY WITH AN INCREASE IN COVERAGE
EXPECTED BY MIDWEEK. RELATIVE HUMIDITY VALUES WILL BOTTOM OUT
BETWEEN 15-25% THROUGH TUESDAY BEFORE INCREASING TO 20-30% STARTING
WEDNESDAY. OUTSIDE OF GUSTY AND ERRATIC WINDS NEAR ANY
THUNDERSTORM, OVERALL WINDS WILL 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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ECC027-181445-
SAN BERNARDINO ECC DISPATCH-
DISCUSSION FOR SAN BERNARDINO ECC DISPATCH
139 PM PDT MON AUG 17 2026
THE WARMING AND DRYING TREND CONTINUES, WITH ABOVE NORMAL
TEMPERATURES RETURNING AS MIN RHS FALL TO 5-15% ACROSS LOWER
ELEVATIONS AND 20-25% ACROSS THE MOUNTAINS THROUGH MIDWEEK.
DIURNAL/TERRAIN-DRIVEN 20FT WINDS AROUND 5-10 MPH ARE EXPECTED,
WITH OCCASIONAL HIGHER GUSTS IN THE AFTERNOONS. STORM CHANCES
RETURN LATE WEEK INTO THE WEEKEND, ESPECIALLY OVER THE HIGHER
TERRAIN AND EASTERN PORTIONS OF SAN BERNARDINO COUNTY AS
MONSOONAL MOISTURE INCREASES.
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