104  
FXUS63 KTOP 111045  
AFDTOP  
 
AREA FORECAST DISCUSSION  
NATIONAL WEATHER SERVICE TOPEKA KS  
545 AM CDT TUE AUG 11 2026  
   
KEY MESSAGES
 
 
- HEAT CONTINUES TODAY AND TOMORROW. HIGHS IN THE MID/UPPER 90S WITH  
HEAT INDICES IN THE 100S. HEAT ADVISORY FOR MOST OF THE AREA TODAY.  
 
- FRONT STALLS ACROSS NORTH-CENTRAL KANSAS THURSDAY INTO SATURDAY.  
SLIGHTLY COOLER NEAR NEBRASKA BORDER, STILL HEAT INDICES NEAR/ABOVE  
100 ALONG/SOUTH OF I-70.  
 
- RAIN AND STORM CHANCES CONTINUE EACH DAY, HIGHEST NORTH OF THE  
FRONT TOWARDS THE NEBRASKA BORDER.  
 

 
   
DISCUSSION
 
 
ISSUED AT 337 AM CDT TUE AUG 11 2026  
 
WE REMAIN IN A QUASI-ZONAL PATTERN THIS MORNING, WITH SEASONABLY  
FAST FLOW OVER THE NORTHER TIER STATES AND UPPER RIDGING TO OUR  
SOUTH. AT THE SURFACE, A STATIONARY FRONT HAS SET UP ACROSS NEBRASKA  
AND IOWA, ON THE SOUTHERN PERIPHERY OF THE STRONGER JET. THE WARMEST  
TEMPERATURE ANOMALIES ACROSS THE COUNTRY ARE FOCUSED JUST SOUTH OF  
THIS BOUNDARY, WHERE HOT SOUTHWESTERLY 850 MB FLOW IS PRESENT. AS IS  
TYPICAL, THE HOTTEST TEMPERATURES AND LOWEST DEWPOINTS WILL REMAIN  
TOWARDS CENTRAL KS WHERE MIXING IS GREATEST. FARTHER EAST,  
TEMPERATURES WILL STAY SLIGHTLY COOLER BUT DEWPOINTS STAY IN THE  
70S. AS SUCH, HEAT INDICES SHOULD CLIMB INTO THE 100S ACROSS THE  
ENTIRE AREA. HAVE EXTENDED THE HEAT ADVISORY SLIGHTLY FARTHER NORTH  
AS A RESULT. SIMILAR TO YESTERDAY, PERSISTENT HIGH CLOUDS AND AN  
OCCASIONAL SPRINKLE OR TWO MAY LINGER ACROSS NORTHERN KS AND KEEP  
TEMPERATURES DOWN A FEW DEGREES, BUT IT WILL BE HOT REGARDLESS.  
 
TOMORROW WILL BE MORE OF THE SAME. TEMPERATURES APPROACH 100 ACROSS  
MOST OF THE AREA, WITH HEAT INDICES ABOVE 100 AGAIN. WILL LIKELY  
NEED ANOTHER HEAT ADVISORY FOR PARTS OF THE AREA, BUT WILL WAIT A  
BIT TO SEE TRENDS IN CLOUD COVER ACROSS NORTHERN KS. AS THE  
STATIONARY FRONT TO OUR NORTH BEGINS TO INCH SOUTH, WE'LL LIKELY SEE  
ANOTHER ROUND OF SCATTERED SHOWERS AND WEAK STORMS ALONG THE  
BOUNDARY. LOW CHANCE THIS OCCURS AS EARLY AS THE DAYTIME WEDNESDAY,  
BUT MORE LIKELY OVERNIGHT WEDNESDAY AS ISENTROPIC ASCENT INCREASES  
NEAR THE NEBRASKA BORDER. STORMS SHOULD REMAIN HIGH-BASED AND  
SCATTERED, KEEPING THE OVERALL SEVERE THREAT LOW, BUT CAN'T RULE OUT  
AN OCCASIONAL STRONG WIND GUST OR SMALL HAIL.  
 
THURSDAY INTO SATURDAY, THE FRONT WILL ONLY SLOWLY INCH SOUTHWARD  
ACROSS THE AREA. IT SHOULD REMAIN QUITE HOT SOUTH OF THE BOUNDARY,  
WITH HEAT INDICES STILL ABOVE 100. NORTH OF THE BOUNDARY  
TEMPERATURES WILL BE MORE DEPENDENT ON CLOUD COVER BUT STILL SHOULD  
CLIMB INTO THE LOW 90S EACH DAY. UPPER SUPPORT FOR CONVECTION WILL  
BE MORE LIMITED, BUT SCATTERED SHOWERS AND STORMS WILL REMAIN  
POSSIBLE EACH DAY TOWARDS NORTHERN KS. GUIDANCE HAS COME TO A BETTER  
CONSENSUS THAT THE FRONT WILL FINALLY GET A STRONGER SOUTHWARD PUSH  
BY SUNDAY. THERE ARE STILL DIFFERENCES IN EXACTLY HOW MUCH COOLER  
THE AIRMASS BEHIND THE FRONT WILL BE, BUT WE SHOULD SEE TEMPERATURES  
GET BACK CLOSER TO AVERAGE FOR THE FIRST PART OF NEXT WEEK.  
 

 
   
AVIATION /12Z TAFS THROUGH 12Z WEDNESDAY/
 
 
ISSUED AT 545 AM CDT TUE AUG 11 2026  
 
SOUTHERLY WINDS INCREASE SLIGHTLY OVER THE MORNING HOURS,  
WITH A FEW GUSTS TO AROUND 20 KTS DURING THE AFTERNOON, BEFORE  
WEAKENING AGAIN AFTER SUNSET. IF WINDS CAN GET CLOSE TO CALM  
OVERNIGHT, SOME MORE LLWS WILL BE POSSIBLE GIVEN A STRONG  
SOUTHWESTERLY LLJ. OTHERWISE, VFR CONDITIONS CONTINUE WITH JUST  
BROKEN HIGH CLOUDS.  
 

 
   
CLIMATE
 
 
ISSUED AT 338 AM CDT TUE AUG 11 2026  
 
HIGHEST MINIMUM TEMPERATURE RECORDS  
 
AUGUST 11  
RECORD (YEAR) FORECAST  
TOPEKA 82 (1913) 80  
CONCORDIA 77 (2021) 79  
 
AUGUST 12  
RECORD (YEAR) FORECAST  
TOPEKA 81 (1913) 79  
CONCORDIA 80 (1943) 78  
 

 
   
TOP WATCHES/WARNINGS/ADVISORIES
 
 
HEAT ADVISORY FROM NOON TODAY TO 8 PM CDT THIS EVENING FOR KSZ011-  
KSZ012-KSZ020-KSZ021-KSZ022-KSZ023-KSZ024-KSZ026-KSZ034-KSZ035-  
KSZ036-KSZ037-KSZ038-KSZ039-KSZ040-KSZ054-KSZ055-KSZ056-KSZ058-  
KSZ059.  
 

 
 

 
 
DISCUSSION...REESE  
AVIATION...REESE  
CLIMATE...FLANAGAN/REESE  
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.

The Nexlab KS Page Main Text Page