383  
FXUS65 KBOU 101122  
AFDBOU  
 
AREA FORECAST DISCUSSION  
NATIONAL WEATHER SERVICE DENVER/BOULDER CO  
422 AM MST MON NOV 10 2025  
   
KEY MESSAGES  
 
 
- DRY CONDITIONS AND ABOVE NORMAL TEMPERATURES ARE EXPECTED ACROSS  
THE FORECAST AREA ALL WEEK.  
 
- A FEW HOURS OF ELEVATED FIRE WEATHER CONDITIONS ARE EXPECTED  
TUESDAY AFTERNOON OVER THE PLAINS.  
 
- AN UPPER TROUGH IS EXPECTED TO MOVE ACROSS THE FORECAST AREA LATE  
FRIDAY AND SATURDAY WITH A CHANCE OF PRECIPITATION FOR MOST AREAS.  
 
 
   
DISCUSSION /THROUGH SUNDAY/  
 
ISSUED AT 155 PM MST SUN NOV 9 2025  
 
MODELS SHOW THE NORTHERLY FLOW ALOFT TONIGHT TO GRADUALLY WEAKEN  
AND BECOME NORTHWESTERLY BY MONDAY AFTERNOON AS UPPER RIDING  
MOVES SLOWLY EASTWARD TOWARDS COLORADO. THE NORTHWESTERLY FLOW  
ALOFT IS EXPECTED TO CONTINUE THROUGH TUESDAY NIGHT AT JET LEVEL  
SPEEDS OF 30 TO 50 MPH. BY WEDNESDAY, THE UPPER RIDGE IS OVER THE  
CWA AND THE ZONAL FLOW ALOFT IS PROGGED TO INCREASE IN SPEED.  
 
THE QG FIELDS POINT TO VERY WEAK OR NO SYNOPTIC SCALE ENERGY OVER  
THE CWA TONIGHT THROUGH WEDNESDAY NIGHT. THE QPF FIELDS SHOW NO  
MEASURABLE PRECIPITATION THROUGH WEDNESDAY NIGHT EITHER. WILL KEEP  
THE DRY WEATHER GOING THROUGH WEDNESDAY.  
 
FOR TEMPERATURES, THICKNESS FIELDS POINT TO DAILY HIGHS GETTING 10 TO  
15 DEGREES F ABOVE NORMAL MUCH OF THE WEEK. THERE IS AN OUTSIDE  
CHANCE OF A RECORD HIGH OR TWO BEING SET THROUGH THURSDAY.  
 
THERE WILL BE ELEVATED FIRE WEATHER CONDITIONS; MAINLY TUESDAY  
AFTERNOON, ACROSS THE PLAINS DUE TO THE WARMTH, DRYNESS AND FAIRLY  
BREEZY WINDS THAT ARE EXPECTED.  
 
FOR THE LATER DAYS, THURSDAY THROUGH SUNDAY, ZONAL FLOW ALOFT ON  
THURSDAY INCREASES AND BECOMES SOUTHWESTERLY BY FRIDAY AHEAD OF AN  
APPROACHING UPPER TROUGH. THE TROUGH AXIS IS OVER THE WESTERN  
COLORADO BORDER 00Z SATURDAY, THEN IT MOVES ACROSS THE CWA THROUGH  
MID DAY SATURDAY. THE GFS IS STRONGER THAN THE ECMWF WITH THIS  
FEATURE. THIS SYSTEM WILL BRING A CHANCE OF PRECIPITATION TO THE  
CWA FRIDAY INTO EARLY SUNDAY, ESPECIALLY IN THE MOUNTAINS. STRONG  
NORTH-NORTHWESTERLY FLOW ALOFT MOVES IN EARLY SUNDAY BUT THEN DECREASES  
THROUGH THE DAY.  
 
 
   
AVIATION /12Z TAFS THROUGH 12Z TUESDAY/  
 
ISSUED AT 422 AM MST MON NOV 10 2025  
 
VFR TO PREVAIL THROUGH TODAY AND TONIGHT. HIGH CLOUDS WILL INCREASE  
THIS MORNING, BUT CEILINGS WILL REMAIN ABOVE 12,000 FEET. LIGHT  
WINDS ARE EXPECTED TODAY WITH SOUTH TO SOUTHWEST BEING THE MAIN  
DIRECTION. TYPICAL SOUTHERLY DRAINAGE WINDS ARE EXPECTED AT APA  
AND DEN THIS EVENING, AFTER 02Z. GUSTIER WEST WINDS WILL BE  
POSSIBLE TOWARDS TO THE FOOTHILLS AND AT BJC WITH GUSTS TO 30  
KNOTS POSSIBLE THIS EVENING AND OVERNIGHT, BEGINNING 02-04Z.  
 
 
   
BOU WATCHES/WARNINGS/ADVISORIES  
 
NONE.  
 
 
 
 
 
DISCUSSION...66  
AVIATION...12  
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