683  
FNUS76 KMFR 220006  
FWSMFR  
 
SPOT FORECAST FOR SNOWMANS UNDERBURN...USFS  
NATIONAL WEATHER SERVICE MEDFORD OR  
506 PM PDT WED OCT 21 2026  
 
FORECAST IS BASED ON IGNITION TIME OF 0700 PDT ON OCTOBER 22.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
   
DISCUSSION
 
LOW PRESSURE TO THE SOUTH WILL BRING WIDESPREAD RAIN  
SHOWERS AND HIGHER HUMIDITY ACROSS THE AREA THURSDAY. AT THIS TIME,  
THUNDER CHANCES LOOK LOW, LESS THAN 10%. THESE SHOWERS (WHERE THEY  
OCCUR) SHOULD BRING WETTING RAINFALL. A CHANCE OF SHOWERS LINGERS  
INTO THURSDAY EVENING, THEN THINGS DRY OUT RATHER QUICKLY FRIDAY  
WITH A FROSTY MORNING GIVING WAY TO SUNSHINE. DRY WEATHER WITH COLD  
MORNINGS AND SUNNY AFTERNOONS IS EXPECTED THIS WEEKEND AND PROBABLY  
MONDAY, THOUGH A SYSTEM COULD ARRIVE FROM THE NORTHWEST MONDAY OR  
TUESDAY. STILL UNCERTAIN THOUGH.  
   
THURSDAY
 
 
SKY/WEATHER.........CLOUDY AND COOLER WITH A 90 PERCENT CHANCE OF RAIN  
SHOWERS. PROBABLY WON'T RAIN ALL DAY (BREAK 0800-  
1100?). RAIN AMOUNT 0.10-0.20".  
CHANCE OF LIGHTNING.8 PERCENT.  
MAX TEMPERATURE.....AROUND 53.  
MIN HUMIDITY........75-85 PERCENT.  
EYE LEVEL WINDS.....VARIABLE OR E 0-1 MPH BECOMING WSW 1-3 MPH, SHIFTING  
TO N LATE AFTERNOON.  
WIND (20 FT)........E 1-4 MPH BECOMING WSW 3-7 MPH. PEAK GUSTS TO 13 MPH.  
WINDS SHIFT TO N LATE IN THE AFTERNOON.  
MIXING HEIGHT.......1400 FT AGL.  
TRANSPORT WINDS.....SW 7-12 MPH.  
CWR.................80 PERCENT.  
   
THURSDAY NIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY WITH A 50% CHANCE OF RAIN SHOWERS IN  
THE EVENING, THEN BECOMING PARTLY CLOUDY. WIDESPREAD  
FROST AFTER 3 AM. RAIN AMOUNT: TRACE-0.02".  
CHANCE OF LIGHTNING.5 PERCENT.  
MIN TEMPERATURE.....30-34.  
MAX HUMIDITY........NEAR 100 PERCENT.  
EYE LEVEL WINDS.....N 0-2 MPH.  
WIND (20 FT)........N 1-4 MPH.  
MIXING HEIGHT.......LOWERING TO 500 FT AGL.  
TRANSPORT WINDS.....N 5-10 MPH.  
CWR.................12 PERCENT.  
   
FRIDAY
 
 
SKY/WEATHER.........BECOMING SUNNY. WIDESPREAD FROST EARLY IN THE MORNING.  
CHANCE OF LIGHTNING.0 PERCENT.  
MAX TEMPERATURE.....AROUND 55.  
MIN HUMIDITY........20-25 PERCENT.  
EYE LEVEL WINDS.....NNW 1-3 MPH.  
WIND (20 FT)........NORTH WINDS AROUND 5 MPH IN THE MORNING  
BECOMING LIGHT.  
MIXING HEIGHT.......3200 FT AGL.  
TRANSPORT WINDS.....NORTH AROUND 11 MPH.  
CWR.................0 PERCENT.  
   
FORECAST DAYS 3 THROUGH 5
 
   
SATURDAY
 
 
SUNNY. LOWS IN THE UPPER 20S. HIGHS IN THE LOWER 60S. LIGHT  
WINDS.    
SUNDAY
 
 
MOSTLY SUNNY. LOWS IN THE MID 30S. HIGHS IN THE LOWER 60S. LIGHT  
WINDS.    
MONDAY
 
 
MOSTLY SUNNY. LOWS IN THE LOWER 30S. HIGHS IN THE LOWER 60S. LIGHT  
WINDS.  
 

 
FORECASTER...SPILDE  
REQUESTED BY...HANNE MEYERS  
TYPE OF REQUEST...PRESCRIBED  
.TAG 2623916.3/MFR  
.DELDT 10/22/26  
.FORMATTERVERSION 2.0.0  
.EMAIL HANNE.MEYERS@USDA.GOV,RAMON.MOTA@USDA.GOV  
 
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