993  
FNUS72 KJAX 020800  
FWSJAX  
 
SPOT FORECAST FOR ST. SIMONS ISLAND 4TH OF JULY REQUEST #2...GLYNN COUNTY EMERGENCY MANAGEMENT  
NATIONAL WEATHER SERVICE JACKSONVILLE FL  
400 AM EDT WED JUL 2 2025  
 
FORECAST IS BASED ON FORECAST START TIME OF 0900 EDT ON JULY 04.  
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER  
SERVICE.  
 
PLEASE CONTACT OUR OFFICE AT (904) 741-4370 IF YOU HAVE QUESTIONS  
OR CONCERNS WITH THIS FORECAST.  
   
DISCUSSION
 
A FRONT WILL PUSH SOUTH OF GLYNN COUNTY BY FRIDAY  
AFTERNOON. ANTICIPATE A FEW SHOWERS TO PUSH IN OFF THE WATER BUT  
THUNDERSTORM CHANCES WILL BE SOMEWHAT LOWER. WE MAY END UP  
DECREASING RAIN CHANCES MORE OVER THE NEXT 24 HOURS IF THESE  
TRENDS CONTINUE. AFTER 3 PM, IT APPEARS THAT RAIN CHANCES WILL BE  
SLIGHT WITH MOST ACTIVITY TO THE SOUTH. WINDS WILL BE ONSHORE  
(COMING FROM THE ATLANTIC) AND BE FAIRLY BREEZY ALONG THE COAST  
WITH GUSTS UP TO 20 MPH DURING THE AFTERNOON.  
 
   
INDEPENDENCE DAY
 
 
TIME (EDT) 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY (%).........52 52 52 52 52 66 66 66 66  
WEATHER COV.....CHC CHC CHC CHC CHC CHC CHC CHC CHC  
WEATHER TYPE....RW RW RW RW RW RW RW RW RW  
TSTM COV........ CHC CHC CHC CHC CHC CHC CHC  
CHC OF PCPN (%).30 30 30 30 30 50 50 50 50  
CHC OF THDR (%).10 10 30 30 30 50 50 50 50  
TEMP............81 83 85 85 86 86 86 86 86  
RH..............91 82 77 77 75 75 75 72 72  
HEAT INDEX (F)..88 92 96 97 98 98 98 97 96  
SURFACE WND DIR.N NE NE NE E E E E E  
SURFACE WND SPD.7 8 9 10 12 13 13 13 13  
SURFACE WND GST.10 12 13 14 16 17 18 18 17  
TRANSP WIND DIR.N NE E E E E E E SE  
TRANSP WIND SPD.9 10 10 12 13 13 13 13 13  
   
FRIDAY NIGHT
 
 
TIME (EDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM  
SKY (%).........66 66 40 39 38 38 38 38 35 35 35 38  
WEATHER COV.....CHC CHC SCH SCH SCH SCH SCH SCH SCH SCH SCH SCH  
WEATHER TYPE....RW RW RW RW RW RW RW RW RW RW RW RW  
TSTM COV........CHC CHC SCH SCH SCH  
CHC OF PCPN (%).50 50 20 20 20 20 20 20 20 20 20 20  
CHC OF THDR (%).50 50 20 20 20 10 10 10 10 10 10 10  
TEMP............85 84 83 82 82 81 80 80 79 79 78 78  
RH..............75 77 80 82 82 85 88 88 91 91 94 94  
HEAT INDEX (F)..94 93 91 89 90 88 88 87 87 87 79 79  
SURFACE WND DIR.E E E E E E E NE NE NE NE NE  
SURFACE WND SPD.12 10 9 8 8 8 8 8 8 9 9 10  
SURFACE WND GST.16 14 13 12 12 12 12 12 12 13 13 14  
TRANSP WIND DIR.SE E E E E E E NE NE NE E E  
TRANSP WIND SPD.14 14 14 13 12 10 10 10 10 10 10 12  
 

 
FORECASTER...BOOTHE  
REQUESTED BY...KELSIEE BRAZEALE  
TYPE OF REQUEST...OTHER  
.TAG 2516981.0/JAX  
.DELDT 07/02/25  
.FORMATTERVERSION 2.0.0  
.EMAIL KELSIEE.BRAZEALE@GLYNNCOUNTY-GA.GOV  
 
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