275
FNUS76 KHNX 200219
FWSHNX
SPOT FORECAST FOR GRANT GROVE RX...USWFS
NATIONAL WEATHER SERVICE HANFORD CA
719 PM PDT MON OCT 19 2026
FORECAST IS BASED ON IGNITION TIME OF 0700 PDT ON OCTOBER 20.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
WETTING RAINFALL OCCURS WEDNESDAY AND THURSDAY, ALTHOUGH THERE IS
A SLIGHT CHANCE OF LIGHT RAIN LATE TUESDAY NIGHT UNTIL WEDNESDAY
MORNING. THE BULK OF THE RAINFALL WILL OCCUR WEDNESDAY NIGHT INTO
THURSDAY WITH TOTAL PRECIPITATION EXCEEDING AN INCH BY THURSDAY
EVENING. SNOW LEVELS ARE EXPECTED ABOVE 8,000 FEET. A 10% TO 15%
CHANCE OF THUNDERSTORMS WILL ACCOMPANY THIS PRECIPITATION, MAINLY
FROM WEDNESDAY UNTIL THURSDAY. A MUCH COOLER PATTERN WILL LAST FOR
THE REST OF THE WEEK. WINDS WILL BE GENERALLY DIURNAL AND
TERRAIN-DRIVEN, EXCEPT GUSTY AND ERRATIC NEAR THUNDERSTORMS.
TUESDAY
SKY/WEATHER.........SUNNY.
MAX TEMPERATURE.....57-61.
MIN HUMIDITY........38-42 PERCENT.
EYE LEVEL WINDS.....SOUTHEAST 2-4 MPH IN THE MORNING SHIFTING TO
THE SOUTHWEST IN THE AFTERNOON.
SURROUNDING RIDGE...SOUTHERLY 5-10 MPH.
MIXING HEIGHT.......RISING TO 5500 FT AGL.
TRANSPORT WINDS.....SOUTH AROUND 9 MPH.
TUESDAY NIGHT
SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
A 20 PERCENT CHANCE OF RAIN. PRECIPITATION
AMOUNTS AROUND 0.02 INCH.
MIN TEMPERATURE.....42-46.
MAX HUMIDITY........74-78 PERCENT.
EYE LEVEL WINDS.....EAST 2-4 MPH.
SURROUNDING RIDGE...EAST TO SOUTHEAST 5-10 MPH.
MIXING HEIGHT.......LOWERING TO LESS THAN 500 FT AGL.
TRANSPORT WINDS.....SOUTHEAST AROUND 6 MPH.
WEDNESDAY
SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN IN THE
MORNING, THEN RAIN SHOWERS LIKELY AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
CHANCE OF PRECIPITATION 60 PERCENT.
PRECIPITATION AMOUNTS TO 0.10 TO 0.25 INCH.
MAX TEMPERATURE.....48-53.
MIN HUMIDITY........57-62 PERCENT.
EYE LEVEL WINDS.....EAST 2-4 MPH IN THE MORNING SHIFTING TO THE
SOUTHWEST IN THE AFTERNOON. EXCEPT GUSTY AND
ERRATIC WINDS POSSIBLE NEAR ANY THUNDERSTORMS.
SURROUNDING RIDGE...SOUTH 6-12 MPH.
MIXING HEIGHT.......RISING TO 4500 FT AGL.
TRANSPORT WINDS.....SOUTH AROUND 7 MPH.
FORECASTER...OCHS
REQUESTED BY...ISABELLA MUSCETTOLA
TYPE OF REQUEST...PRESCRIBED
.TAG 2623866.6/HNX
.DELDT 10/20/26
.FORMATTERVERSION 2.0.0
.EMAIL ISABELLA_MUSCETTOLA@NPS.GOV
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