047  
FNUS72 KFFC 031510  
FWSFFC  
 
SPOT FORECAST FOR CITY OF ROSWELL FOURTH OF JULY CELEBRATION...ROSWELL FIRE DEPARTMENT  
NATIONAL WEATHER SERVICE PEACHTREE CITY GA  
1110 AM EDT FRI JUL 3 2026  
 
FORECAST IS BASED ON FORECAST START TIME OF 1800 EDT ON JULY 03.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
   
..HEAT ADVISORY IN EFFECT UNTIL 8 PM EDT SATURDAY
 
 
   
DISCUSSION
 
 
GOOD MORNING, HERE IS YOUR FORECAST FOCUSING ON IMPACTS THIS  
EVENING THROUGH THE NIGHT OF INDEPENDENCE DAY. THE MAIN CONCERN  
THROUGH THE PERIOD WILL BE CONTINUED HEAT RISK ACROSS THE AREA. A  
HEAT ADVISORY IS IN EFFECT THROUGH 8PM SATURDAY, INCLUDING  
OVERNIGHT. MAX HEAT INDICES TODAY WILL BE BETWEEN 103 AND 107 WITH  
LOCALLY HIGHER VALUES DEPENDENT ON CONCRETE/ASPHALT COVERAGE.  
TIMING OF MAXIMUM HEAT RISK WILL BE AROUND 4PM THIS AFTERNOON,  
WITH A SIMILAR TIMING FOR TOMORROW. TOMORROW'S MAXIMUM HEAT INDEX  
WILL REACH BETWEEN 103 AND 106. CONDITIONS WILL REMAIN HOT  
OVERNIGHT AS WELL. MINIMUM HEAT INDEX VALUES WILL ONLY DROP TO  
AROUND 80 DEGREES AND WILL LEAD TO AN ACCUMULATED HEAT RISK.  
 
ISOLATED TO SCATTERED THUNDERSTORM CHANCES ARE GREATEST THIS  
AFTERNOON, PEAKING AROUND 35% AT 5PM AND DECREASING THROUGH THE  
EVENING HOURS. STORM COVERAGE WILL BE SPOTTY AND ANY THUNDERSTORM  
IS UNLIKELY TO LAST MUCH MORE THAN 1 HOUR. THE MAIN HAZARD WITH  
ANY THUNDERSTORM WILL BE LIGHTNING, THOUGH BRIEF LOCALLY GUSTY  
WINDS UP TO 40-50MPH MAY BE POSSIBLE. THUNDERSTORM CHANCES FOR  
TOMORROW ARE LOWER, WITH MAXIMUM CHANCES OF 10-15% IN THE  
AFTERNOON.  
 
WINDS EACH DAY WILL BE LIGHT AND VARIABLE, GENERALLY LESS THAN 5  
MPH. THIS MAY MAKE CONDITIONS FEEL HOTTER THAN USUAL AND MAY  
REDUCE SWEAT EFFICIENCY. LOW WINDS MAY ALSO CAUSE ISSUES WITH  
SMOKE DISBURSAL. SIGNIFICANT FIREWORK SMOKE/HAZE WILL BE SLOW TO  
DISPERSE AND MAY SETTLE INTO LOW LYING AREAS THROUGH THE  
FOLLOWING EARLY MORNING. THE GOOD NEWS IS THAT RH VALUES SHOULD  
REMAIN BELOW 90 PERCENT, EVEN OVERNIGHT. THIS SHOULD LIMIT FOG  
FORMATION ON TOP OF HAZE, EXCEPT FOR LOCALIZED LOW LYING AND WET  
AREAS.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR (15-25 PERCENT). CHANCE OF SHOWERS  
AND THUNDERSTORMS EARLY IN THE EVENING, THEN  
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS  
EARLY IN THE EVENING.  
CHANCE OF PCPN......30 PERCENT.  
MIN TEMPERATURE.....AROUND 76.  
MAX HUMIDITY........85 PERCENT.  
HEAT INDEX..........N/A.  
WIND CHILL..........N/A.  
SURFACE WINDS (MPH).SOUTHEAST WINDS AROUND 5 MPH EARLY IN THE  
EVENING BECOMING LIGHT.  
RAINFALL AMOUNT.....0.02 INCHES.  
CEILING (KFT).......5.0 INCREASING TO 25 IN THE LATE EVENING AND  
OVERNIGHT.  
 
TIME (EDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM  
SKY (%).........27 25 29 31 30 21 18 21 13 10 9 10  
WEATHER COV.....CHC SCH  
WEATHER TYPE....RW RW  
TSTM COV........CHC SCH  
CHC OF PCPN (%).30 20 10 10 0 0 0 0 0 0 0 0  
TEMP............92 89 87 84 82 81 80 79 78 77 76 76  
RH..............51 56 61 67 71 75 76 79 81 82 84 85  
HEAT INDEX (F)..100 96 94 90 87 85 83 79 78 77 76 76  
WIND CHILL (F)..N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A  
SURFACE WND DIR.SE SW W NW NW NW NW N N NW N N  
SURFACE WND SPD.5 3 3 1 1 1 1 1 0 1 1 1  
SURFACE WND GST.8 7 7 5 5 5 5 5 3 3 3 5  
CEILING (KFT)...5.0 5.0 5.0 25 25 25 25 25 25 25 25 25  
   
INDEPENDENCE DAY
 
 
SKY/WEATHER.........SUNNY (15-25 PERCENT).  
CHANCE OF PCPN......10 PERCENT.  
MAX TEMPERATURE.....AROUND 97.  
MIN HUMIDITY........42 PERCENT.  
HEAT INDEX..........85 INCREASING TO OVER 101 IN THE LATE MORNING AND  
AFTERNOON.  
WIND CHILL..........N/A.  
SURFACE WINDS (MPH).LIGHT WINDS.  
RAINFALL AMOUNT.....0.00 INCHES.  
CEILING (KFT).......25 DECREASING TO 5.0 EARLY IN THE AFTERNOON,  
THEN INCREASING TO 6.0 LATE IN THE AFTERNOON.  
 
TIME (EDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY (%).........13 14 11 10 5 9 19 31 29 33 35 37  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........  
CHC OF PCPN (%).0 0 0 0 0 0 0 0 10 10 10 10  
TEMP............76 76 77 81 86 89 92 93 94 96 94 94  
RH..............85 85 84 76 63 56 50 47 44 42 43 43  
HEAT INDEX (F)..76 76 77 85 92 96 99 99 100 101 100 99  
WIND CHILL (F)..N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A  
SURFACE WND DIR.N N N N N NW W W W W W W  
SURFACE WND SPD.1 1 0 0 0 1 2 2 2 2 2 3  
SURFACE WND GST.3 3 3 3 3 5 6 6 6 6 7 7  
CEILING (KFT)...25 25 25 25 25 25 5.0 5.0 5.0 6.0 6.0 6.0  
   
SATURDAY NIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY (25-35 PERCENT).  
CHANCE OF PCPN......10 PERCENT.  
MIN TEMPERATURE.....AROUND 76.  
MAX HUMIDITY........84 PERCENT.  
HEAT INDEX..........N/A.  
WIND CHILL..........N/A.  
SURFACE WINDS (MPH).LIGHT WINDS.  
RAINFALL AMOUNT.....0.00 INCHES.  
CEILING (KFT).......6.0 INCREASING TO 25 IN THE LATE EVENING AND  
OVERNIGHT.  
 
TIME (EDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM  
SKY (%).........36 37 34 45 34 23 22 20 19 20 20 21  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........  
CHC OF PCPN (%).10 10 10 10 10 10 10 10 10 10 10 10  
TEMP............93 91 89 86 83 81 80 79 78 77 77 76  
RH..............45 49 54 61 66 69 73 75 78 79 81 82  
HEAT INDEX (F)..99 96 94 91 88 85 83 79 78 77 77 76  
WIND CHILL (F)..N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A  
SURFACE WND DIR.W W W W W W W W W W NW NW  
SURFACE WND SPD.3 3 2 1 1 2 2 1 1 1 1 1  
SURFACE WND GST.7 7 7 5 5 6 6 6 6 6 5 5  
CEILING (KFT)...6.0 6.0 6.0 25 25 25 25 25  
   
SUNDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY (25-35 PERCENT). CHANCE OF SHOWERS  
AND THUNDERSTORMS LATE IN THE AFTERNOON.  
CHANCE OF PCPN......50 PERCENT.  
MAX TEMPERATURE.....AROUND 95.  
MIN HUMIDITY........46 PERCENT.  
HEAT INDEX..........84 INCREASING TO OVER 100 LATE IN  
THE AFTERNOON.  
WIND CHILL..........N/A.  
SURFACE WINDS (MPH).LIGHT WINDS BECOMING SOUTHWEST 5 TO 6 MPH LATE  
IN THE AFTERNOON.  
RAINFALL AMOUNT.....0.04 INCHES.  
CEILING (KFT).......MISSING.  
 
TIME (EDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY (%).........21 21 22 22 22 23 25 27 29 34 39 43  
WEATHER COV..... CHC CHC CHC CHC  
WEATHER TYPE.... RW RW RW RW  
TSTM COV........ CHC CHC CHC CHC  
CHC OF PCPN (%).10 10 10 10 10 10 10 10 50 50 50 50  
TEMP............76 76 77 81 85 89 91 93 94 93 92 91  
RH..............83 84 81 73 64 56 51 48 46 47 49 52  
HEAT INDEX (F)..76 76 77 84 90 95 98 99 100 100 98 97  
WIND CHILL (F)..N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A  
SURFACE WND DIR.NW NW NW NW W W W W W W SW SW  
SURFACE WND SPD.1 1 1 2 2 2 3 3 5 5 6 6  
SURFACE WND GST.5 5 5 5 6 6 7 7 8 9 10 10  
CEILING (KFT)...  
 

 
FORECASTER...SMARLOW  
REQUESTED BY...CHAD MILLER  
TYPE OF REQUEST...OTHER  
.TAG 2616636.0/FFC  
.DELDT 07/03/26  
.FORMATTERVERSION 2.0.0  
.EMAIL CMILLER@ROSWELLGOV.COM  
 
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