984
FNUS72 KFFC 040915
FWSFFC
SPOT FORECAST FOR JULY 4TH FIREWORKS...ALPHARETTA FIRE DEPARTMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
515 AM EDT SAT JUL 4 2026
FORECAST IS BASED ON FORECAST START TIME OF 0900 EDT ON JULY 04.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
..HEAT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING
DISCUSSION
GOOD MORNING, HERE IS YOUR FORECAST FOCUSING ON IMPACTS TODAY
THROUGH TONIGHT. THE MAIN CONCERN THROUGH THE PERIOD WILL BE
CONTINUED HEAT RISK ACROSS THE AREA. A HEAT ADVISORY IS IN EFFECT
THROUGH 8PM. MAX HEAT INDICES TODAY WILL BE BETWEEN 100 AND 104
WITH LOCALLY HIGHER VALUES DEPENDENT ON CONCRETE/ASPHALT COVERAGE.
TIMING OF MAXIMUM HEAT RISK WILL BE AROUND 4PM THIS AFTERNOON.
A SLIGHTLY DRIER AIRMASS IS FILTERING INTO THE AREA BUT WE WILL
STILL SEE ISOLATED THUNDERSTORMS CHANCES THIS AFTERNOON AND
EVENING. WE WILL NOT SEE AS MUCH COVERAGE AS YESTERDAY BUT WE WILL
STILL SEE A 20% CHANCE PEAKING BETWEEN 3PM AND 10PM. 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 40MPH MAY BE
POSSIBLE.
WINDS WILL BE MAINLY OUT OF THE W TO NW IN THE 3-7MPH RANGE.
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, WHICH WILL HELP TO LIMIT FOG FORMATION ON TOP
OF HAZE, EXCEPT FOR LOCALIZED LOW LYING AND WET AREAS.
REST OF TODAY
SKY/WEATHER.........MOSTLY SUNNY (30-40 PERCENT).
CHANCE OF PCPN......10 PERCENT.
MAX TEMPERATURE.....AROUND 96.
MIN HUMIDITY........45 PERCENT.
HEAT INDEX..........92 INCREASING TO 102 LATE IN THE MORNING.
SURFACE WINDS (MPH).LIGHT WINDS.
RAINFALL AMOUNT.....0.00 INCHES.
CEILING (KFT).......25 DECREASING TO 3.5 LATE IN THE MORNING, THEN
INCREASING TO 5.0 IN THE AFTERNOON.
TIME (EDT) 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........28 27 30 32 37 34 32 39 37
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CHC OF PCPN (%).0 0 0 0 10 10 10 10 10
TEMP............80 85 88 90 93 93 94 95 94
RH..............80 69 63 57 52 49 47 45 46
HEAT INDEX (F)..84 92 96 99 101 101 102 102 100
SURFACE WND DIR.NW W W W W W W W N
SURFACE WND SPD.1 1 2 3 3 3 2 2 2
SURFACE WND GST.3 5 6 6 6 7 6 6 7
CEILING (KFT)...25 25 3.5 4.0 5.0 5.0 5.0 5.0 5.0
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (20-30 PERCENT). SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS EARLY IN THE EVENING.
CHANCE OF PCPN......20 PERCENT.
MIN TEMPERATURE.....AROUND 76.
MAX HUMIDITY........84 PERCENT.
HEAT INDEX..........N/A.
SURFACE WINDS (MPH).LIGHT WINDS.
RAINFALL AMOUNT.....0.09 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 (%).........33 36 32 31 32 29 21 22 23 22 21 18
WEATHER COV..... SCH SCH SCH SCH SCH SCH
WEATHER TYPE.... RW RW RW RW RW RW
TSTM COV........ SCH SCH SCH SCH SCH SCH
CHC OF PCPN (%).10 10 20 20 20 20 20 20 10 10 10 0
TEMP............94 92 89 86 83 82 80 79 78 77 76 76
RH..............47 49 55 62 68 71 74 76 79 80 83 84
HEAT INDEX (F)..100 98 95 91 88 86 84 82 78 77 76 76
SURFACE WND DIR.NW S SW S SW W W NW NW NW NW NW
SURFACE WND SPD.2 3 3 2 1 1 1 1 1 1 1 1
SURFACE WND GST.7 7 7 6 6 6 6 6 6 5 5 5
CEILING (KFT)...5.0 5.0 5.0 25 25 25 25 25 25 25 25 25
SUNDAY
SKY/WEATHER.........MOSTLY SUNNY (35-45 PERCENT). SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS LATE IN THE
AFTERNOON. CHANCE OF SHOWERS AND THUNDERSTORMS
LATE IN THE AFTERNOON.
CHANCE OF PCPN......50 PERCENT.
MAX TEMPERATURE.....AROUND 94.
MIN HUMIDITY........48 PERCENT.
HEAT INDEX..........84 INCREASING TO 99 IN THE LATE MORNING AND
EARLY AFTERNOON, THEN INCREASING TO 101 LATE IN
THE AFTERNOON.
SURFACE WINDS (MPH).WEST WINDS AROUND 5 MPH.
RAINFALL AMOUNT.....0.16 INCHES.
CEILING (KFT).......25 DECREASING TO 4.0 LATE IN THE MORNING, THEN
INCREASING TO 5.0 LATE IN THE AFTERNOON
DECREASING TO 4.0 LATE IN THE AFTERNOON.
TIME (EDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........23 19 20 22 25 32 46 52 50 60 64 56
WEATHER COV..... SCH CHC CHC
WEATHER TYPE.... RW RW RW
TSTM COV........ SCH CHC CHC
CHC OF PCPN (%).0 0 0 0 0 0 10 10 10 20 40 50
TEMP............76 76 77 80 85 88 91 91 92 94 92 91
RH..............84 84 84 77 66 60 55 53 50 48 50 53
HEAT INDEX (F)..76 76 77 84 91 95 99 99 99 101 100 98
SURFACE WND DIR.W W W W W W W W W W W W
SURFACE WND SPD.1 1 1 2 2 3 5 5 5 5 5 5
SURFACE WND GST.5 5 6 6 7 8 8 8 9 9 9 9
CEILING (KFT)...25 25 25 25 25 4.0 4.0 5.0 5.0 5.0 5.0 4.0
FORECASTER...SMITH
REQUESTED BY...ALBERT KONG
TYPE OF REQUEST...OTHER
.TAG 2616688.0/FFC
.DELDT 07/03/26
.FORMATTERVERSION 2.0.0
.EMAIL AKONG@ALPHARETTA.GA.US
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