796  
FNUS76 KMFR 201750  
FWSMFR  
 
SPOT FORECAST FOR MASTERSON LOOP...USFS  
NATIONAL WEATHER SERVICE MEDFORD OR  
1050 AM PDT TUE MAY 20 2025  
 
FORECAST IS BASED ON IGNITION TIME OF 0800 PDT ON MAY 21.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
   
DISCUSSION
 
A RIDGE WILL MOVE INLAND WEDNESDAY TO PROVIDE  
ADDITIONAL WARMING AND DRYING. A WEAK DISTURBANCE WILL BRUSH  
PAST ON THURSDAY WITH TEMPERATURES NUDGING BACK DOWN TO AROUND  
NORMAL, BUT JUST A FEW CLOUDS. ANOTHER WEAK SYSTEM WILL ENHANCE  
CLOUD COVER SLIGHTLY ON FRIDAY. DRY AND WARMER WEATHER IS LIKELY  
THIS WEEKEND.  
 
   
WEDNESDAY
 
 
SKY/WEATHER.........SUNNY (0-10 PERCENT).  
CHANCE OF LIGHTNING.0 PERCENT.  
MAX TEMPERATURE.....AROUND 78.  
MIN HUMIDITY........16 PERCENT.  
EYE LEVEL WINDS.....LIGHT WINDS BECOMING WEST UP TO 3 MPH  
IN THE AFTERNOON.  
WIND (20 FT)........LIGHT WINDS BECOMING WEST 4 TO 8 MPH  
IN THE AFTERNOON.  
MIXING HEIGHT.......7400 FT AGL.  
TRANSPORT WINDS.....WEST AROUND 7 MPH.  
CWR.................0 PERCENT.  
   
WEDNESDAY NIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR (10-25 PERCENT).  
CHANCE OF LIGHTNING.0 PERCENT.  
MIN TEMPERATURE.....AROUND 45.  
MAX HUMIDITY........60 PERCENT.  
EYE LEVEL WINDS.....WEST WINDS UP TO 3 MPH BECOMING  
LIGHT WINDS.  
WIND (20 FT)........WEST WINDS 4 TO 7 MPH BECOMING  
LIGHT WINDS.  
MIXING HEIGHT.......1600 FT AGL.  
TRANSPORT WINDS.....WEST AROUND 5 MPH.  
CWR.................0 PERCENT.  
   
THURSDAY
 
 
SKY/WEATHER.........SUNNY (0-10 PERCENT).  
CHANCE OF LIGHTNING.0 PERCENT.  
MAX TEMPERATURE.....AROUND 74.  
MIN HUMIDITY........23 PERCENT.  
EYE LEVEL WINDS.....LIGHT WINDS BECOMING NORTHWEST  
2 MPH IN THE AFTERNOON.  
WIND (20 FT)........LIGHT WINDS BECOMING NORTHWEST  
3 TO 6 MPH IN THE AFTERNOON.  
MIXING HEIGHT.......8300 FT AGL.  
TRANSPORT WINDS.....NORTHWEST AROUND 5 MPH.  
CWR.................0 PERCENT.  
   
FORECAST DAYS 3 THROUGH 5
 
   
FRIDAY
 
 
MOSTLY CLEAR. LOWS IN THE MID 40S. HIGHS IN THE LOWER 70S. LIGHT  
WINDS.    
SATURDAY
 
 
MOSTLY CLEAR. LOWS IN THE MID 40S. HIGHS IN THE UPPER 70S. LIGHT  
WINDS.    
SUNDAY
 
 
MOSTLY CLEAR. LOWS IN THE UPPER 40S. HIGHS IN THE LOWER 80S. SOUTH  
WINDS AROUND 5 MPH.  
 

 
FORECASTER...WEYGAND  
REQUESTED BY...PHILIP PARASHIS  
TYPE OF REQUEST...PRESCRIBED  
.TAG 2514264.1/MFR  
.DELDT 05/20/25  
.FORMATTERVERSION 2.0.0  
.EMAIL PHILIP.PARASHIS@USDA.GOV  
 
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