Spot Forecast
Issued by NWS Jacksonville, FL
Issued by NWS Jacksonville, FL
140 FNUS72 KJAX 110512 FWSJAX Spot Forecast for RSSF RX Fire...FFS National Weather Service Jacksonville FL 112 AM EDT Fri Sep 11 2026 Forecast is based on ignition time of 0800 EDT on September 11. 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... Chances for showers and storms will build through the afternoon hours today and Sunday with winds building from out of the southwest with daytime heating. Chances for storms will diminish during the late evening and overnight hours along with winds becoming more mild and variable. becoming more mild and variable during the evening and overnight hours. As always, gusty and erratic wind shifts will occur in the presence of developing thunderstorms. .REST OF TODAY... TIME (EDT) 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM Sky (%).........54 57 55 59 60 67 79 81 78 76 Weather cov.....PTY SCH SCH CHC CHC CHC CHC CHC Weather type....FOG RW RW RW RW RW RW RW Tstm cov........ SCH CHC CHC CHC CHC Chc of pcpn (%).10 10 10 20 20 30 50 50 50 50 Chc of thdr (%).0 0 0 0 10 20 40 40 40 40 Temp............73 77 82 87 90 92 93 92 89 88 RH..............100 94 82 70 64 58 55 57 61 63 Heat index (F)..73 77 89 98 102 103 105 103 98 97 Wind chill (F)..73 77 89 98 102 103 103 102 98 97 20 FT wind dir..SW SW W W W SW SW SW SW SW 20 FT wind spd..1 3 6 6 7 7 7 7 7 7 20 FT wind gust.2 6 9 9 10 10 10 10 10 10 Mix hgt (kft)...0.4 1.1 1.8 2.5 3.1 3.6 4.2 3.6 3.0 2.3 Transp wind dir.SW SW SW SW SW SW SW SW SW SW Transp wind spd.5 6 6 7 7 8 8 8 8 8 Dispersion idx..4 8 14 23 29 37 42 36 30 23 LVORI...........9 6 4 3 2 1 1 1 2 2 .TONIGHT... TIME (EDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM Sky (%).........73 75 76 72 68 60 50 46 46 41 39 41 Weather cov.....CHC CHC SCH SCH SCH Weather type....RW RW RW RW RW Tstm cov........CHC CHC Chc of pcpn (%).50 40 20 20 20 10 10 10 10 10 10 10 Chc of thdr (%).40 30 20 20 10 10 10 10 0 0 0 0 Temp............86 83 80 78 77 76 75 75 74 73 73 72 RH..............68 74 82 88 87 90 94 94 97 100 100 100 Heat index (F)..94 90 84 78 77 76 75 75 74 73 73 72 Wind chill (F)..94 90 84 78 77 76 75 75 74 73 73 72 20 FT wind dir..S S S S S S S S SW SW S S 20 FT wind spd..7 6 6 3 2 2 2 1 1 1 1 1 20 FT wind gust.10 9 9 6 3 3 3 2 2 2 2 2 Mix hgt (kft)...1.7 1.1 0.6 0.5 0.5 0.4 0.4 0.4 0.4 0.4 0.4 0.4 Transp wind dir.SW S S S S S SW SW SW SW SW S Transp wind spd.7 7 6 6 6 6 6 6 6 5 5 3 Dispersion idx..16 10 4 3 3 3 3 3 3 2 2 2 LVORI...........3 3 5 6 6 6 6 7 8 10 10 10 .SATURDAY... TIME (EDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM Sky (%).........43 48 50 6 24 41 46 50 80 80 80 80 Weather cov..... LKY LKY LKY LKY Weather type.... RW RW RW RW Tstm cov........ CHC CHC CHC CHC Chc of pcpn (%).10 0 10 10 10 10 10 10 70 70 70 70 Chc of thdr (%).0 0 10 10 10 10 10 10 50 50 50 50 Temp............72 72 73 77 83 88 91 93 93 91 89 87 RH..............100 100 100 96 83 71 65 59 57 61 65 69 Heat index (F)..72 72 73 77 93 102 106 107 106 103 100 98 Wind chill (F)..72 72 73 77 91 100 105 106 105 102 99 96 20 FT wind dir..S S S N SW SW SW S S S S S 20 FT wind spd..1 1 1 0 1 2 3 3 3 3 3 3 20 FT wind gust.2 2 2 2 3 6 6 6 6 6 6 Mix hgt (kft)...0.4 0.3 0.3 1.1 2.0 2.8 3.5 4.3 5.0 4.1 3.1 2.2 Transp wind dir.SW SW SW SW SW SW SW SW SW SW S S Transp wind spd.3 3 3 5 6 7 7 7 7 7 7 7 Dispersion idx..2 2 4 7 15 24 31 37 40 34 27 20 LVORI...........10 10 9 6 4 3 2 1 1 1 2 3 $$ Forecaster...Corless Requested by...Sal Dalu Type of request...PRESCRIBED .TAG 2621598.0/JAX .DELDT 09/11/26 .FormatterVersion 2.0.0 .EMAIL salvatore.dalu@fdacs.gov