128  
FXUS63 KTOP 021924  
AFDTOP  
 
AREA FORECAST DISCUSSION  
NATIONAL WEATHER SERVICE TOPEKA KS  
224 PM CDT MON OCT 2 2023  
   
DISCUSSION  
 
ISSUED AT 222 PM CDT MON OCT 2 2023  
 
KEY MESSAGES  
 
- GUSTY SOUTH WINDS PERSIST THIS EVENING, IN ADVANCE OF AN INCOMING  
WAVE AND COLD FRONT PROGGED TO ARRIVE TOMORROW AFTERNOON AND EVENING.  
 
- STORM CHANCES INCREASE TOMORROW AFTERNOON INTO THE LATE EVENING. A  
FEW STORMS MAY BE SEVERE, ESPECIALLY TOWARDS NORTH CENTRAL KANSAS.  
 
- NEAR NORMAL HIGHS ANTICIPATED WEDNESDAY AND THURSDAY BEFORE A  
SECONDARY COLD FRONT CARRIES WELL BELOW NORMAL TEMPS IN THE 60S FOR  
HIGHS AND LOWS IN THE UPPER 30S FRIDAY AND SATURDAY.  
 
UPPER TROUGH AXIS CENTERED OVER THE FOUR CORNERS REGION THIS  
AFTERNOON WHILE UPPER RIDGING DOMINATES THE MIDWEST. THE CENTRAL  
PLAINS ARE ON THE EDGE OF THE TWO SYSTEMS WITH WATER VAPOR IMAGERY  
DEPICTING A MOISTURE PLUME COMING OFF THE EASTERN PACIFIC, SPREADING  
DEWPOINTS INTO THE 60S BY TOMORROW AFTERNOON. IN THE MEANTIME, HIGHS  
TODAY ARE NEAR THE RECORD ONE FINAL DAY WITH FORECAST READINGS IN  
THE LOW 90S (SEE CLIMATE SECTION BELOW). SOUTHERLY WINDS ARE GUSTING  
TO AROUND 25 MPH AT TIMES WHILE MIN RH VALUES FALL BETWEEN 25 AND 30  
PERCENT IN THE NEXT FEW HOURS. WILL THEREFORE MAINTAIN THE HIGH  
FIRE DANGER MENTION FOR NORTH CENTRAL KANSAS.  
 
AS THE UPPER TROUGH SHIFTS EASTWARD OVERNIGHT, SOUTH WINDS REMAIN  
GUSTY AHEAD OF THE INCOMING COLD FRONT. CANNOT RULE OUT A FEW WAA  
SHOWERS AND STORMS DEVELOPING OVER THE AREA IN THE MORNING, HOWEVER  
THESE SHOULD REMAIN SUB-SEVERE. WITHIN THE HEATING OF THE DAY,  
CAPE VALUES INCREASE TO NEAR 2000 J/KG BY LATE AFTERNOON WHILE  
EFFECTIVE SHEAR VALUES APPROACH 35-45 KTS. DEPENDENT ON THE TIMING  
OF THE MID LEVEL JET STREAK, MAJORITY OF CONVECTION WILL FORM TO  
THE WEST NEAR THE FRONT BEFORE QUICKLY TRACKING AT 40-50 MPH TO  
THE EAST/ NORTHEAST. INITIAL STORM MODE MAY BE SUPERCELLULAR AHEAD  
OF THE FRONT/DRYLINE BEFORE QUICKLY TRANSITIONING TO A LINE OF  
STORMS ENTERING NORTH CENTRAL AREAS AFTER 3 PM. AREAS ALONG AND  
WEST OF THE FLINT HILLS REGION WILL HAVE THE BEST CHANCE TO SEE A  
FEW SEVERE STORMS CAPABLE OF LARGE HAIL AND DAMAGING WIND GUSTS.  
INITIAL STORMS MAY PRODUCE A TORNADO, HOWEVER PROBS FOR THIS  
OCCURRING ARE LOW. THE FRONTAL BOUNDARY SLOWS ACROSS EAST CENTRAL  
KANSAS WEDNESDAY MORNING WHILE BETTER DYNAMIC FORCING LIFTS OFF TO  
THE NORTHEAST. ACTIVITY IS EXPECTED TO WEAKEN OVERNIGHT AS STORMS  
MOVE AWAY FROM THE OPTIMAL INSTABILITY AND FORCING. SHOWERS AND  
STORMS GRADUALLY CLEAR THE REGION AFTER SUNRISE AS SKIES BECOME  
MOSTLY CLEAR AND WINDS SHIFT TO THE NORTH AROUND 10 MPH. A  
SECONDARY COLD FRONT ADVECTS MUCH COOLER TEMPS TO THE REGION  
THURSDAY NIGHT INTO FRIDAY. THERE ARE SLIGHT CHANCE POPS DURING  
THIS TIME, BUT QPF AMOUNTS ARE MINIMAL GIVEN LACK OF MOISTURE WITH  
THIS SYSTEM. AFTER HIGHS IN THE UPPER 70S, TEMPS IN THE 60S ARE  
LIKELY FRIDAY AND SATURDAY WHILE OVERNIGHT LOWS DIP DOWN INTO THE  
30S. PATCHY FROST MAY BE POSSIBLE DURING THIS TIME, PARTICULARLY  
IN LOW LYING AREAS.  
 
 
   
AVIATION  
(FOR THE 18Z TAFS THROUGH 18Z TUESDAY AFTERNOON)  
ISSUED AT 1212 PM CDT MON OCT 2 2023  
 
VFR AT TERMINALS AS GUSTY SOUTH WINDS BACK TO THE SOUTHEAST AND  
WEAKEN AFT 00Z THIS EVENING. LOW TO MID LEVEL CLOUDS FROM 8-10 KFT  
INCREASE BETWEEN 08-12Z FROM THE WEST WHILE SOUTH WINDS BECOME  
GUSTY UP TO AROUND 25 KTS AFT 12-14Z TIME FRAME. CANNOT RULE OUT  
ISOLATED SHRA IN THE MORNING, ESPECIALLY AT KMHK, HOWEVER  
CONFIDENCE IS TOO LOW TO INCLUDE AT THIS POINT.  
 
 
   
FIRE WEATHER  
 
ISSUED AT 223 PM CDT MON OCT 2 2023  
 
RELATIVE HUMIDITY CONTINUES TO DROP INTO THE 25 TO 30 PERCENT  
RANGE THIS AFTERNOON. WINDS ACROSS NORTH CENTRAL AND CENTRAL  
KANSAS OF 15 TO 20 MPH ARE EXPECTED ALONG WITH GUSTS TO AROUND 25  
MPH. THIS WILL BRING ELEVATED FIRE WEATHER CONDITIONS TO AREAS  
GENERALLY WEST OF A WASHINGTON TO ABILENE LINE THROUGH LATE  
AFTERNOON. RELATIVE HUMIDITY RECOVERS TO NEAR 40 PERCENT BY 8 PM.  
 
 
   
CLIMATE  
 
UPDATED AT 223 PM CDT MON OCT 2 2023  
 
HIGH TEMPERATURE RECORDS  
 
FORECAST RECORD (YEAR)  
 
MONDAY (10/02)  
TOPEKA 92 95 (1963)  
CONCORDIA 93 95 (1938)  
 
 
   
TOP WATCHES/WARNINGS/ADVISORIES  
 
NONE.  
 
 
 
 
DISCUSSION...22  
AVIATION...22  
FIRE WEATHER...53/22  
CLIMATE...GRIESEMER/53  
CLICK HERE TO GO TO PREVIOUS BULLETINS.
The Nexlab KS Page
Main Text Page