675  
FNUS73 KLSX 101141  
FWSLSX  
 
SPOT FORECAST FOR MONARCH SAR...MONARCH FPD CHESTERFIELD  
NATIONAL WEATHER SERVICE SAINT LOUIS MO  
641 AM CDT FRI JUL 10 2026  
 
FORECAST IS BASED ON FORECAST START TIME OF 0700 CDT ON JULY 10.  
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE  
NATIONAL WEATHER SERVICE.  
   
DISCUSSION  
 
SCATTERED THUNDERSTORMS WILL CONTINUE TO PRODUCE INTERMITTENT  
HEAVY RAIN ALONG A LINE RUNNING FROM WEST-NORTHWEST TO EAST-  
SOUTHEAST, DIRECTLY THROUGH PILOT KNOB, THROUGH ROUGHLY 8 AM.  
THIS HEAVY RAIN WILL NOT BE AS CONTINUOUS AS IT WAS OVERNIGHT,  
AND THIS MAY SLOW THE WATER RISES IN SMALLER STREAMS AND DITCHES,  
BUT THE THREAT OF FLASH FLOODING WILL CONTINUE THROUGHOUT THIS  
PERIOD. ADDITIONAL RAIN AMOUNTS OF 1 TO 2 INCHES ARE  
POSSIBLE PRIOR TO 9 AM, BUT THIS WILL BE SPORADIC. WE DO EXPECT  
THAT STORMS WILL BEGIN TO DIMINISH BY ROUGHLY 9 AM, AND WE SHOULD  
SEE WATER START TO RECEDE IN CREEKS AND STREAMS BY THIS TIME.  
HOWEVER, WATER IS EXPECTED TO CONTINUE TO RISE IN LARGER RIVERS  
THROUGHOUT THE DAY, PARTICULARLY THE MAIN STEM OF THE BLACK RIVER,  
WHICH IS EXPECTED TO CREST ABOVE MODERATE FLOOD STAGE THIS  
AFTERNOON.  
 
ASIDE FROM THE THREAT OF FLOODING, OCCASIONAL WIND GUSTS TO 40-50  
MPH WILL BE POSSIBLE WITH THUNDERSTORMS, BUT THIS WILL NOT BE  
COMMON. GIVEN THAT THE GROUND IS VERY SATURATED, THIS MAY  
INCREASE THE THREAT OF OCCASIONAL DOWNED TREES.  
 
   
REST OF TODAY  
 
SKY/WEATHER.........PARTLY SUNNY (50-60 PERCENT). SCATTERED THUNDERSTORMS  
WITH INTERMITTENT HEAVY RAIN THROUGH 9 AM. BECOMING LESS  
FREQUENT DURING THE DAY.  
TEMPERATURE.........74 AT FORECAST START...MAX 90.  
RH..................90 PERCENT AT FORECAST START...MIN 68 PERCENT.  
SURFACE WINDS (MPH).LIGHT WINDS.  
 
TIME (CDT) 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM  
SKY (%).........73 64 55 55 55 55 55 48 42 41 41 50  
WEATHER COV.....CHC CHC CHC SCH CHC LKY LKY  
WEATHER TYPE....RW RW RW RW RW RW RW  
TSTM COV........ SCH CHC CHC CHC  
TEMP............74 77 79 82 84 86 88 88 88 88 87 85  
RH..............90 88 85 79 74 72 68 68 68 68 72 77  
SURFACE WND DIR.N W SW SW W SW SW SW SW SW SW W  
SURFACE WND SPD.5 3 2 3 3 3 5 3 3 3 2 1  
SURFACE WND GST.10 10 10 13 13 13 14 14 14 14 10 9  
   
TONIGHT  
 
SKY/WEATHER.........MOSTLY CLOUDY (55-65 PERCENT). SHOWERS LIKELY  
IN THE EVENING. CHANCE OF THUNDERSTORMS WITH HEAVY RAIN THROUGH  
THE NIGHT.  
TEMPERATURE.........MIN 70.  
RH..................MAX 100 PERCENT.  
SURFACE WINDS (MPH).LIGHT WINDS.  
 
 
FORECASTER...19  
REQUESTED BY...LES CREWS  
TYPE OF REQUEST...SAR  
.TAG 2617152.0/LSX  
.DELDT 07/10/26  
.FORMATTERVERSION 2.0.0  
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