069
FNUS75 KGJT 060322
FWSGJT
SPOT FORECAST FOR SPLIT FIRE...NPS
NATIONAL WEATHER SERVICE GRAND JUNCTION CO
922 PM MDT SUN JUL 5 2020
FORECAST IS BASED ON FORECAST START TIME OF 0600 MDT ON JULY 06.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
...RED FLAG WARNING FOR GUSTY WINDS, LOW RELATIVE HUMIDITY AND DRY
FUELS IS IN EFFECT FROM 10 AM TO 9 PM MDT TUESDAY...
DISCUSSION
HIGH PRESSURE WILL BE SHIFTING SOUTHEAST ACROSS NEW MEXICO ON
MONDAY AS ANOTHER PACIFIC STORM MOVES ACROSS WASHINGTON AND OREGON
AND SETS UP OVER IDAHO BY TUESDAY. THIS WILL BRING INCREASINGLY
GUSTY SOUTHWEST WINDS WITH DRY CONDITIONS PERSISTING. CRITICAL
FIRE WEATHER CONDITIONS WILL MATERIALIZE TUESDAY AND MAY PERSIST
THROUGH WEDNESDAY.
MONDAY
SKY/WEATHER.........SUNNY (0-10%).
MAX TEMPERATURE.....84-89 F.
MIN HUMIDITY........4-9%.
WIND (20 FT)........DOWNSLOPE/DOWNVALLEY WINDS 2-5 MPH UNTIL 1030, THEN
SOUTHWEST WINDS 4-8 MPH WITH GUSTS UP TO 16 MPH.
HAINES INDEX........6 OR HIGH.
LAL.................1.
MIXING HEIGHT.......INCREASING TO 15300 FT AGL BY 1400.
TRANSPORT WINDS.....SOUTHEAST 12 MPH SHIFTING TO THE SOUTHWEST IN
THE AFTERNOON.
CLEARING INDEX......600 UNTIL 0900, THEN INCREASING TO 1000+ BY 1200.
MONDAY NIGHT
SKY/WEATHER.........MOSTLY CLEAR (10-20%).
MIN TEMPERATURE.....59-64 F.
MAX HUMIDITY........21-26%. POOR RH RECOVERY EXPECTED.
WIND (20 FT)........SOUTH TO SOUTHWEST WINDS 4-8 WITH GUSTS UP TO
20 MPH UNTIL 1900, THEN WINDS BECOMING
DOWNSLOPE/DOWNVALLEY 3-6 MPH.
HAINES INDEX........6 OR HIGH.
LAL.................1.
MIXING HEIGHT.......DECREASING TO 1200 FT AGL BY 0100.
TRANSPORT WINDS.....SOUTHWEST 14 MPH SHIFTING TO THE SOUTHEAST
OVERNIGHT.
CLEARING INDEX......1000+ UNTIL 1900, THEN DECREASING TO LESS THAN
100 BY 0100.
TUESDAY
SKY/WEATHER.........SUNNY (0-10%).
MAX TEMPERATURE.....83-88 F.
MIN HUMIDITY........3-8%.
WIND (20 FT)........DOWNSLOPE/DOWNVALLEY WINDS 3-6 MPH UNTIL 0900,
THEN SOUTH WINDS 4-8 MPH INCREASING TO 8-14 MPH
BY 1200. GUSTS UP TO 30 MPH, MAINLY AFTER 1200.
HAINES INDEX........6 OR HIGH.
LAL.................1.
MIXING HEIGHT.......RISING TO 13500 FT AGL BY 1200.
TRANSPORT WINDS.....SOUTHWEST 29 MPH.
CLEARING INDEX......LESS THAN 100 UNTIL 0900, THEN INCREASING TO
1000+ BY 1200.
FORECASTER...JEFF COLTON
REQUESTED BY...CHARLIE REYNAR
TYPE OF REQUEST...WILDFIRE
.TAG 2008655.8/GJT
.DELDT 07/06/20
.FORMATTERVERSION 1.0.26
.EMAIL CHARLIE_REYNAR@NPS.GOV
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