228  
FNUS75 KGJT 252118  
FWSGJT  
 
SPOT FORECAST FOR 412 FIRE...U.S. FOREST SERVICE  
NATIONAL WEATHER SERVICE GRAND JUNCTION CO  
318 PM MDT SUN JUN 25 2017  
 
FORECAST IS BASED ON REQUEST TIME OF 0600 MDT ON JUNE 26.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
   
DISCUSSION
 
 
ISOLATED THUNDERSTORMS WILL AFFECT THE SOUTHERN SAN JUANS NEAR THE  
BURN LOCATION MONDAY. SOME SCATTERED CLOUD COVER AND BUILD-UPS WILL  
PERSIST THROUGH THE EVENING HOWEVER LIGHTNING ACTIVITY AND PRECIPITATION  
THREATS WILL BE LOW AFTER 6PM. WINDS WILL DIMINISH OVERNIGHT WITH RH  
RECOVERING TO NEAR 50% AND DRY WEATHER EXPECTED. THE BURN LOCATION WILL  
SEE AN UPTICK IN WIND SPEEDS ON TUESDAY WITH DRY WEATHER EXPECTED. WINDS  
COULD GUST AS HIGH AS 20 MPH OUT OF THE WEST-SOUTHWEST DURING THE  
MID-AFTERNOON HOURS.  
 
DRY WEATHER WILL PERSIST THROUGH THE REST OF THE WEEK WITH VERY LOW  
PRECIPITATION THREAT. AFTERNOON RH MINIMUMS WILL RUN IN THE 10-10% RANGE  
EACH DAY RECOVERING TO AROUND 40% OVERNIGHT.  
   
MONDAY
 
 
SKY/WEATHER.........SUNNY (0-10%), THEN BECOMING PARTLY CLOUDY  
(30-40%). SCATTERED SHOWERS AND THUNDERSTORMS  
IN THE AFTERNOON.  
MAX TEMPERATURE.....74-79 F.  
MIN HUMIDITY........16-21%.  
WIND (20 FT)........EAST WINDS 5 MPH, BECOMING SOUTH 5-10 MPH IN THE  
AFTERNOON. GUSTY AND ERRATIC WINDS IN ANY  
THUNDERSTORMS IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR (14000 KNOT-FT) EARLY, THEN BECOMING  
EXCELLENT IN THE LATE MORNING AND AFTERNOON.  
HAINES INDEX........5 MODERATE.  
LAL.................4.  
MIXING HEIGHT.......13500 FT AGL.  
TRANSPORT WINDS.....WEST 10 MPH.  
CLEARING INDEX......750, INCREASING TO 1050 IN THE AFTERNOON.  
   
MONDAY NIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY (40-50%). ISOLATED SHOWERS AND  
THUNDERSTORMS IN THE EARLY EVENING.  
MIN TEMPERATURE.....43-48 F.  
MAX HUMIDITY........51-56%.  
WIND (20 FT)........SOUTHWEST WINDS 5 MPH, BECOMING SOUTHEAST AFTER  
MIDNIGHT.  
SMOKE DISPERSAL.....EXCELLENT, DECREASING TO POOR (7000 KNOT-FT) IN  
THE LATE EVENING AND OVERNIGHT.  
HAINES INDEX........5 MODERATE.  
LAL.................2.  
MIXING HEIGHT.......12000 FT AGL, DECREASING TO 1000 FT AGL AFTER  
MIDNIGHT.  
TRANSPORT WINDS.....SOUTHWEST 10 MPH.  
CLEARING INDEX......1050, DECREASING TO 50 AFTER MIDNIGHT.  
   
TUESDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY (30-40%), THEN BECOMING MOSTLY  
SUNNY (10-20%).  
MAX TEMPERATURE.....70-75 F.  
MIN HUMIDITY........10-15%.  
WIND (20 FT)........SOUTH WINDS 5 MPH, BECOMING SOUTHWEST 10-15 MPH  
IN THE AFTERNOON WITH SOME GUSTS TO 20 MPH.  
SMOKE DISPERSAL.....FAIR, INCREASING TO EXCELLENT IN THE LATE  
MORNING AND AFTERNOON.  
HAINES INDEX........6 HIGH.  
LAL.................1.  
MIXING HEIGHT.......8000 FT AGL, INCREASING TO 11000 FT AGL IN THE  
AFTERNOON.  
TRANSPORT WINDS.....SOUTHWEST 15 MPH.  
CLEARING INDEX......1050.  
   
FORECAST DAYS 3 THROUGH 5
 
   
WEDNESDAY
 
 
CLEAR. LOWS 38-48. HIGHS 64-74. SOUTHWEST WINDS 5-10 MPH WITH GUSTS  
UP TO 20 MPH.    
THURSDAY
 
 
CLEAR. LOWS 37-47. HIGHS 64-74. WEST WINDS 5-10 MPH WITH GUSTS UP TO  
25 MPH.    
FRIDAY
 
 
CLEAR. LOWS 39-49. HIGHS 66-76. WEST WINDS 5-10 MPH WITH GUSTS UP TO  
20 MPH.  
 

 
FORECASTER...MIKE CHARNICK  
REQUESTED BY...412 INCIDENT COMMANDER  
TYPE OF REQUEST...WILDFIRE  
.TAG 1711592.0/GJT  
 
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