FNUS72 KJAX 090541 FWSJAX Spot Forecast for Guana River WMA...FWC National Weather Service Jacksonville FL 141 AM EDT Thu Jul 9 2026 Forecast is based on ignition time of 0700 EDT on July 09. 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. ...HEAT ADVISORY IN EFFECT FROM 11 AM THIS MORNING TO 8 PM EDT THIS EVENING... .DISCUSSION... A west to southwest flow will continue today with a chance for a shower and thunderstorm late afternoon and evening. Expect a wind shift from the Atlantic sea breeze between 1 and 3 pm. Winds will pick up to about 10 to 15 mph behind the sea breeze. Very hot again today with max temperatures in the upper 90s with a heat advisory in place. Similar weather pattern expected on Friday with slightly weaker transport winds and lower daytime dispersion. Minimum RH values in the mid 50s are forecast today and Friday. .TODAY... TIME (EDT) 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM Sky (%).........36 26 20 17 17 18 18 21 27 35 36 Weather cov..... Weather type.... Tstm cov........ Chc of pcpn (%).0 0 0 0 0 0 0 0 0 10 10 Chc of thdr (%).0 0 0 0 0 0 0 10 10 10 10 Temp............78 80 85 89 92 95 95 95 95 95 95 RH..............88 85 77 68 62 54 53 53 55 55 56 Heat index (F)..78 85 96 102 106 109 109 109 110 110 110 20 FT wind dir..SW W W W SW SW S S SSE SE SE 20 FT wind spd..6 6 6 6 7 8 8 9 10 13 14 20 FT wind gust.9 8 8 9 9 10 12 13 14 15 16 Mix hgt (kft)...0.6 0.7 1.4 2.1 2.9 2.8 2.7 2.6 2.3 1.9 1.5 Transp wind dir.W W W W W SW SW SW S S SE Transp wind spd.9 9 9 9 9 9 10 12 13 14 15 Dispersion idx..5 10 16 23 30 32 37 40 40 39 37 LVORI...........5 4 3 3 2 2 2 2 2 2 2 .TONIGHT... TIME (EDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM Sky (%).........37 39 46 49 44 35 30 25 20 13 12 12 Weather cov.....SCH SCH SCH Weather type....RW RW RW Tstm cov........SCH SCH SCH Chc of pcpn (%).20 20 20 10 10 0 0 0 0 0 0 0 Chc of thdr (%).10 20 10 10 0 0 0 0 0 0 0 0 Temp............92 90 87 86 85 84 83 82 82 81 80 79 RH..............60 64 70 70 72 74 74 77 77 77 79 82 Heat index (F)..105 102 98 95 94 92 90 88 88 86 84 79 20 FT wind dir..S S S S S S SW SW SW SW SW SW 20 FT wind spd..14 15 14 13 12 10 9 8 8 7 7 6 20 FT wind gust.17 18 16 17 15 14 13 12 10 10 10 10 Mix hgt (kft)...1.3 1.0 0.7 0.6 0.6 0.5 0.5 0.5 0.5 0.5 0.5 0.5 Transp wind dir.S S S S S S SW SW SW SW W W Transp wind spd.16 16 16 15 14 13 12 12 10 10 9 8 Dispersion idx..31 23 15 14 12 9 8 7 6 6 5 5 LVORI...........2 2 3 3 3 3 3 4 4 4 4 4 .FRIDAY... TIME (EDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM Sky (%).........14 18 10 13 18 11 14 16 17 24 25 26 Weather cov..... SCH SCH SCH Weather type.... RW RW RW Tstm cov........ SCH SCH SCH Chc of pcpn (%).0 0 0 0 0 0 0 0 0 20 20 20 Chc of thdr (%).0 0 0 0 0 0 0 0 0 20 20 20 Temp............79 79 81 83 89 91 93 94 93 93 93 91 RH..............82 85 82 80 68 64 60 58 62 60 60 64 Heat index (F)..79 79 87 91 102 105 107 109 109 107 107 105 20 FT wind dir..W W W W W SW S SE SE SE SE SE 20 FT wind spd..6 5 5 5 5 6 6 8 12 13 15 16 20 FT wind gust.9 8 7 6 6 8 10 13 15 16 17 17 Mix hgt (kft)...0.5 0.6 0.7 1.4 2.1 2.8 2.8 2.8 2.7 2.4 2.0 1.7 Transp wind dir.W W W W W W SW S S S SE SE Transp wind spd.8 8 7 7 7 7 8 9 12 13 14 15 Dispersion idx..4 4 8 12 18 26 29 33 36 36 35 33 LVORI...........5 5 4 4 3 2 2 2 2 2 2 2 $$ Forecaster...Shashy Requested by...FWC Type of request...PRESCRIBED .TAG 2617007.0/JAX .DELDT 07/09/26 .FormatterVersion 2.0.0 .EMAIL wade.brenner@myfwc.com