671  
FXUS65 KBOU 110035  
AFDBOU  
 
AREA FORECAST DISCUSSION  
NATIONAL WEATHER SERVICE DENVER/BOULDER CO  
635 PM MDT THU JUL 10 2025  
   
KEY MESSAGES
 
 
 
- SCATTERED SHOWERS/THUNDERSTORMS EARLY THIS EVENING WITH GUSTY  
WINDS 30-65 MPH.  
 
- SCATTERED TO LIKELY LATE DAY SHOWERS AND THUNDERSTORMS FRIDAY  
AND SATURDAY.  
 
- DRIER SUNDAY AND MONDAY WITH SCATTERED SHOWERS AND THUNDERSTORMS  
MAINLY IN THE MOUNTAINS.  
 
- SCATTERED TO LIKELY LATE DAY SHOWERS AND THUNDERSTORMS RETURN  
TUESDAY THROUGH THURSDAY FOR MUCH OF THE CWA WITH TEMPERATURES  
BELOW SEASONAL NORMALS.  
 

 
   
DISCUSSION /THROUGH THURSDAY/
 
 
ISSUED AT 242 PM MDT THU JUL 10 2025  
 
CONVECTION IS DEVELOPING ACROSS THE CWA THIS AFTERNOON. RADAR AND  
OBSERVATIONS ARE SHOWING OUTFLOW WINDS FROM THE STORMS WERE  
GUSTING UP TO 65 MPH. EARLIER THIS MORNING, A GUST TO 70 MPH WAS  
RECORDED AT DIA AT 1010Z.  
 
CONCERNING THE CONVECTION FOR THE REST OF THIS AFTERNOON AND  
EVENING, MODELS, INCLUDING THE CAMS, ARE ALL INDICATING SCATTERED  
COVERAGE FOR MUCH OF THE CWA, BUT ONLY THROUGH THIS EVENING; NO  
LATER THAN 02Z.  
 
THERE WILL BE WEAK NORTHWESTERLY FLOW ALOFT FRIDAY INTO SATURDAY  
WITH A WEAK UPPER TROUGH DEVELOPING JUST EAST OF COLORADO SATURDAY  
MID DAY. MODELS CONTINUE TO SHOW DECENT CAPE. PROGGED PRECIPITABLE  
WATER VALUES CONTINUE TO BE OVER 1.00 INCH FOR THE EASTERN 2/3RDS  
OF THE CWA FRIDAY THROUGH SATURDAY NIGHT. THE BEST RAINFALL  
AMOUNTS ON THE QPF GRIDS ARE PROGGED FOR LATE DAY FRIDAY, LESS  
LATE DAY SATURDAY. TEMPERATURES ARE BELOW SEASONAL NORMALS BOTH  
FRIDAY AND SATURDAY.  
 
ON SUNDAY, THE UPPER RIDGE BUILDS IN FROM THE WEST AND THE  
AIRMASS DRIES OUT A BIT WITH TEMPERATURES GETTING ABOVE SEASONAL  
NORMALS. POPS WILL BE PRETTY LOW AND CONFINED TO THE MOUNTAINS AND  
HIGHER FOOTHILLS. THE PLAINS LOOK TO HAVE POOR INSTABILITY WITH  
LOW CAPE AND A MID LEVEL CAP IN PLACE.  
 
FOR THE LATER DAYS, MONDAY THROUGH THURSDAY, THE UPPER RIDGE IS  
AROUND ON MONDAY WITH TEMPERATURES TO STAY ABOVE NORMAL. THERE IS  
WEAK UPPER TROUGHING MONDAY EVENING INTO TUESDAY WITH A DECENT COLD  
FRONT TO MOVE DOWN ACROSS THE CWA. FLAT UPPER RIDGING IS PROGGED  
ON WEDNESDAY AND THURSDAY WITH THE BELOW NORMAL TEMPERATURES TO  
CONTINUE. FOR POPS, MONDAY IS THE DRIEST DAY, WITH SCATTERED  
CONVECTION RELEGATED TO JUST THE MOUNTAINS. LATE DAY CONVECTION  
AND PRECIPITATION ARE PRETTY DECENT TUESDAY THROUGH THURSDAY, WITH  
WEDNESDAY HAVING THE HIGHEST POPS.  
 

 
   
AVIATION /00Z TAFS THROUGH 00Z SATURDAY/
 
 
ISSUED AT 631 PM MDT THU JUL 10 2025  
 
VFR CONDITIONS EXPECTED THROUGH THE TAF PERIOD. HOWEVER, SMOKE  
FROM FIRES IN THE WEST COULD CAUSE SLANT-RANGE VISIBILITY ISSUES,  
ESPECIALLY DURING SUNSET THIS EVENING AND SUNRISE TOMORROW  
MORNING. SCATTERED SHOWERS/THUNDERSTORMS WILL PREVAIL THROUGH  
01Z, ALTHOUGH THERE IS A CHANCE (<30%) FOR AN ISOLATED SHOWER FOR  
ALL TAF SITES BETWEEN 02Z AND 04Z. A STRONG OUTFLOW BOUNDARY FROM  
STORMS IN THE NORTH WILL BRING GUSTY NORTHERLY WINDS BY 00Z, WHICH  
SHOULD STICK AROUND BEFORE WINDS TURN TO DRAINAGE BY AROUND  
04Z/05Z.  
 
TOMORROW, THUNDERSTORMS ARE POSSIBLE AS EARLY AS 19Z FOR BJC AND  
20Z FOR APA AND DIA WITH VRB WIND GUSTS UP TO 40 KTS. A PROB30 HAS  
BEEN INTRODUCED INTO THE TAF.  
 

 
   
BOU WATCHES/WARNINGS/ADVISORIES
 
 
RED FLAG WARNING UNTIL 9 PM MDT THIS EVENING FOR COZ214.  
 

 
 

 
 
DISCUSSION...RJK  
AVIATION...IDEKER  
 
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