512
FNUS52 KMLB 201933
FWFMLB
FIRE WEATHER PLANNING FORECAST FOR EAST CENTRAL FLORIDA
NATIONAL WEATHER SERVICE MELBOURNE FL
333 PM EDT THU AUG 20 2026
..HEAT ADVISORY IN EFFECT UNTIL 7 PM EDT THIS EVENING
DISCUSSION
HOT AND HUMID AUGUST DAYS, WITH SCATTERED (50-60%) SHOWERS AND
STORMS IN THE AFTERNOONS AND EVENINGS TO END THE WEEK. LIGHT
OFFSHORE FLOW PERSISTS, DELAYING THE SEA BREEZE IN THE AFTERNOONS.
CONVECTION IS FORECAST TO INITIALLY BE FOCUSED ALONG THE SEA BREEZE,
THEN PROPAGATION WILL BECOME ERRATIC DUE TO SLOW STORM MOTIONS. DRY
AIR ALOFT WILL SUPPORT STRONG WIND GUSTS TO 50-55 MPH, IN ADDITION
TO LIGHTNING STRIKES, SMALL HAIL AND LOCALLY HEAVY RAINFALL. HEAT
WILL REMAIN A CONCERN, WITH HIGHS IN THE LOWER TO MID-90S. PEAK
AFTERNOON HEAT INDICES REMAIN NEAR HEAT ADVISORY CRITERIA IN THE
U100-L112 THROUGH FRIDAY. POOR TO FAIR DISPERSION TODAY IS FORECAST
TO IMPROVE TO FAIR TO GOOD FRIDAY. NO MIN RH CONCERNS.
FOG POTENTIAL...WIDESPREAD FOG IS NOT FORECAST. LOCALIZED VISIBILITY
REDUCTIONS DUE TO SMOKE FROM NEW OR EXISTING FIRES WILL BE POSSIBLE
EVEN IF FOG IS NOT FORECAST.
FLZ044-210830-
NORTHERN LAKE-
INCLUDING THE CITIES OF EUSTIS, MOUNT DORA, LEESBURG, AND TAVARES
333 PM EDT THU AUG 20 2026
..HEAT ADVISORY IN EFFECT UNTIL 7 PM EDT THIS EVENING
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY MCLEAR
PRECIP TYPE TSTMS TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 50 50 30 40
CHANCE OF THUNDER (%) 50 50 20 40
MIN/MAX TEMP 73 95 74 92
MAX/MIN RH % 100 54 100 60
20FT WND MPH (AM) LGT/VAR SW 4
20FT WND MPH (PM) LGT/VAR SW 4 LGT/VAR SW 7 G19
PRECIP AMOUNT 0.12 0.13 0.07 0.03
PRECIP DURATION 1 1 0 1
PRECIP BEGIN 6 PM 1 PM CONTINUING 8 AM
PRECIP END 10 PM CONTINUING 8 PM 6 PM
MIXING HGT(FT-AGL) 400 5400 400 5100
TRANSPORT WND (MPH) S 6 SW 8 SW 7 SW 12
DISPERSION INDEX 2 55 3 69
MAX LVORI 7 7
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 5
SUNDAY
PARTLY CLOUDY. A CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS IN THE MID 70S. HIGHS IN THE LOWER 90S. CHANCE OF RAIN
50 PERCENT. SOUTHWEST WINDS UP TO 5 MPH.
MONDAY
PARTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE MID 70S. HIGHS IN THE MID 90S. CHANCE
OF RAIN 20 PERCENT. SOUTH WINDS UP TO 5 MPH.
TUESDAY
PARTLY CLOUDY. A CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS IN THE MID 70S. HIGHS IN THE MID 90S. CHANCE OF RAIN
40 PERCENT. LIGHT WINDS.
FLZ144-210830-
SOUTHERN LAKE-
INCLUDING THE CITIES OF CLERMONT, MASCOTTE, AND GROVELAND
333 PM EDT THU AUG 20 2026
..HEAT ADVISORY IN EFFECT UNTIL 7 PM EDT THIS EVENING
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER PCLDY PCLDY MCLEAR PCLDY
PRECIP TYPE TSTMS TSTMS NONE TSTMS
CHANCE PRECIP (%) 50 50 0 30
CHANCE OF THUNDER (%) 50 50 0 30
MIN/MAX TEMP 75 94 74 92
MAX/MIN RH % 97 58 100 62
20FT WND MPH (AM) LGT/VAR SW 5
20FT WND MPH (PM) LGT/VAR SW 5 SW 4 SW 9 G19
PRECIP AMOUNT 0.09 0.09 0.00 0.01
PRECIP DURATION 1 1 1
PRECIP BEGIN 6 PM 12 PM 8 AM
PRECIP END 10 PM 6 PM 6 PM
MIXING HGT(FT-AGL) 400 4900 400 5100
TRANSPORT WND (MPH) N 7 SW 8 W 7 W 12
DISPERSION INDEX 2 49 3 66
MAX LVORI 7 6
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 5
SUNDAY
PARTLY CLOUDY. A CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS IN THE MID 70S. HIGHS IN THE LOWER 90S. CHANCE OF RAIN
50 PERCENT. SOUTHWEST WINDS AROUND 5 MPH.
MONDAY
PARTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE MID 70S. HIGHS IN THE MID 90S. CHANCE
OF RAIN 20 PERCENT. SOUTH WINDS UP TO 5 MPH.
TUESDAY
PARTLY CLOUDY. A CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS IN THE MID 70S. HIGHS IN THE LOWER 90S. CHANCE OF RAIN
40 PERCENT. SOUTH WINDS UP TO 5 MPH.
FLZ041-210830-
INLAND VOLUSIA-
INCLUDING THE CITIES OF DEBARY, DELAND, AND DELTONA
333 PM EDT THU AUG 20 2026
..HEAT ADVISORY IN EFFECT UNTIL 7 PM EDT THIS EVENING
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY MCLEAR
PRECIP TYPE TSTMS TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 60 60 40 50
CHANCE OF THUNDER (%) 50 60 40 50
MIN/MAX TEMP 74 95 74 94
MAX/MIN RH % 100 54 100 60
20FT WND MPH (AM) LGT/VAR SW 4
20FT WND MPH (PM) LGT/VAR SW 4 S 3 SW 8 G19
PRECIP AMOUNT 0.12 0.10 0.06 0.03
PRECIP DURATION 1 1 1 1
PRECIP BEGIN 6 PM 1 PM CONTINUING 8 AM
PRECIP END 9 PM CONTINUING 2 AM 6 PM
MIXING HGT(FT-AGL) 400 5500 400 5800
TRANSPORT WND (MPH) S 7 SW 7 S 7 SW 12
DISPERSION INDEX 2 52 2 73
MAX LVORI 8 7
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 5
SUNDAY
PARTLY CLOUDY. A CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS IN THE MID 70S. HIGHS IN THE LOWER 90S. CHANCE OF RAIN
50 PERCENT. SOUTHWEST WINDS AROUND 5 MPH.
MONDAY
PARTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE MID 70S. HIGHS IN THE LOWER 90S.
CHANCE OF RAIN 20 PERCENT. SOUTHWEST WINDS UP TO 5 MPH.
TUESDAY
PARTLY CLOUDY. A CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS IN THE MID 70S. HIGHS IN THE LOWER 90S. CHANCE OF RAIN
40 PERCENT. LIGHT WINDS.
FLZ141-210830-
COASTAL VOLUSIA-
INCLUDING THE CITIES OF DAYTONA BEACH, NEW SMYRNA BEACH,
AND ORMOND BEACH
333 PM EDT THU AUG 20 2026
..HEAT ADVISORY IN EFFECT UNTIL 7 PM EDT THIS EVENING
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY MCLEAR
PRECIP TYPE TSTMS TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 50 50 40 60
CHANCE OF THUNDER (%) 50 50 40 50
MIN/MAX TEMP 75 92 75 92
MAX/MIN RH % 100 60 100 60
20FT WND MPH (AM) LGT/VAR SW 5
20FT WND MPH (PM) S 4 SE 7 S 5 SW 9
PRECIP AMOUNT 0.05 0.11 0.06 0.04
PRECIP DURATION 0 1 1 1
PRECIP BEGIN 6 PM 2 PM CONTINUING 2 PM
PRECIP END 8 PM CONTINUING 2 AM 6 PM
MIXING HGT(FT-AGL) 400 5200 400 5400
TRANSPORT WND (MPH) S 8 S 7 S 9 SW 12
DISPERSION INDEX 3 38 3 67
MAX LVORI 7 7
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 5
SUNDAY
PARTLY CLOUDY. SHOWERS AND THUNDERSTORMS LIKELY. LOWS
IN THE MID 70S. HIGHS AROUND 90. CHANCE OF RAIN 60 PERCENT.
SOUTHWEST WINDS AROUND 5 MPH.
MONDAY
PARTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE MID 70S. HIGHS AROUND 90. CHANCE OF
RAIN 20 PERCENT. SOUTHWEST WINDS AROUND 5 MPH.
TUESDAY
PARTLY CLOUDY. A CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS IN THE MID 70S. HIGHS AROUND 90. CHANCE OF RAIN 30 PERCENT.
SOUTH WINDS AROUND 5 MPH.
FLZ046-210830-
SEMINOLE-
INCLUDING THE CITIES OF ALTAMONTE SPRINGS, CASSELBERRY, OVIEDO,
SANFORD, AND WINTER SPRINGS
333 PM EDT THU AUG 20 2026
..HEAT ADVISORY IN EFFECT UNTIL 7 PM EDT THIS EVENING
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY MCLEAR
PRECIP TYPE TSTMS TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 80 60 40 40
CHANCE OF THUNDER (%) 70 60 40 40
MIN/MAX TEMP 75 94 75 93
MAX/MIN RH % 100 56 100 62
20FT WND MPH (AM) LGT/VAR SW 5
20FT WND MPH (PM) SE 3 SW 5 S 4 SW 9 G18
PRECIP AMOUNT 0.15 0.11 0.08 0.03
PRECIP DURATION 1 1 1 1
PRECIP BEGIN 6 PM 2 PM CONTINUING 2 PM
PRECIP END 10 PM CONTINUING 2 AM 6 PM
MIXING HGT(FT-AGL) 400 5500 400 5800
TRANSPORT WND (MPH) SE 6 SW 7 S 6 SW 12
DISPERSION INDEX 2 51 2 73
MAX LVORI 7 6
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 5
SUNDAY
PARTLY CLOUDY. SHOWERS AND THUNDERSTORMS LIKELY. LOWS
IN THE MID 70S. HIGHS IN THE LOWER 90S. CHANCE OF RAIN
60 PERCENT. SOUTHWEST WINDS AROUND 5 MPH.
MONDAY
PARTLY CLOUDY. A CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS IN THE MID 70S. HIGHS IN THE LOWER 90S. CHANCE OF RAIN
50 PERCENT. SOUTHWEST WINDS AROUND 5 MPH.
TUESDAY
PARTLY CLOUDY. A CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS IN THE MID 70S. HIGHS IN THE LOWER 90S. CHANCE OF RAIN
40 PERCENT. SOUTH WINDS AROUND 5 MPH.
FLZ045-210830-
ORANGE-
INCLUDING THE CITIES OF APOPKA, MAITLAND, ORLANDO, WINTER PARK,
AND UNION PARK
333 PM EDT THU AUG 20 2026
..HEAT ADVISORY IN EFFECT UNTIL 7 PM EDT THIS EVENING
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER PCLDY PCLDY MCLEAR MCLEAR
PRECIP TYPE TSTMS TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 80 60 40 40
CHANCE OF THUNDER (%) 70 50 40 40
MIN/MAX TEMP 75 94 75 94
MAX/MIN RH % 97 52 97 54
20FT WND MPH (AM) LGT/VAR SW 5
20FT WND MPH (PM) LGT/VAR SW 5 S 4 SW 10 G18
PRECIP AMOUNT 0.17 0.11 0.07 0.02
PRECIP DURATION 1 1 1 1
PRECIP BEGIN 6 PM 1 PM CONTINUING 2 PM
PRECIP END 10 PM CONTINUING 2 AM 6 PM
MIXING HGT(FT-AGL) 400 5800 400 5900
TRANSPORT WND (MPH) SE 6 SW 7 S 6 SW 12
DISPERSION INDEX 2 51 2 74
MAX LVORI 8 7
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 5
SUNDAY
PARTLY CLOUDY. A CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS IN THE MID 70S. HIGHS IN THE LOWER 90S. CHANCE OF RAIN
50 PERCENT. SOUTHWEST WINDS 5 TO 10 MPH.
MONDAY
PARTLY CLOUDY. A CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS IN THE MID 70S. HIGHS IN THE MID 90S. CHANCE OF RAIN
50 PERCENT. SOUTH WINDS AROUND 5 MPH.
TUESDAY
PARTLY CLOUDY. A CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS IN THE MID 70S. HIGHS IN THE MID 90S. CHANCE OF RAIN
40 PERCENT. SOUTH WINDS AROUND 5 MPH.
FLZ053-210830-
OSCEOLA-
INCLUDING THE CITIES OF CELEBRATION, KISSIMMEE, AND SAINT CLOUD
333 PM EDT THU AUG 20 2026
..HEAT ADVISORY IN EFFECT UNTIL 7 PM EDT THIS EVENING
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY MCLEAR
PRECIP TYPE TSTMS TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 80 60 40 30
CHANCE OF THUNDER (%) 70 50 40 30
MIN/MAX TEMP 73 94 72 94
MAX/MIN RH % 100 56 100 56
20FT WND MPH (AM) LGT/VAR SW 4
20FT WND MPH (PM) LGT/VAR SW 5 S 3 SW 8
PRECIP AMOUNT 0.26 0.08 0.08 0.00
PRECIP DURATION 2 1 2 1
PRECIP BEGIN 6 PM 2 PM CONTINUING 2 PM
PRECIP END 10 PM CONTINUING 2 AM 6 PM
MIXING HGT(FT-AGL) 400 5700 400 5900
TRANSPORT WND (MPH) E 6 SW 7 S 7 SW 10
DISPERSION INDEX 2 48 3 71
MAX LVORI 10 9
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 5
SUNDAY
PARTLY CLOUDY. A CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS IN THE MID 70S. HIGHS IN THE LOWER 90S. CHANCE OF RAIN
50 PERCENT. SOUTHWEST WINDS AROUND 5 MPH.
MONDAY
PARTLY CLOUDY. A CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS IN THE MID 70S. HIGHS IN THE LOWER 90S. CHANCE OF RAIN
50 PERCENT. SOUTH WINDS UP TO 5 MPH.
TUESDAY
PARTLY CLOUDY. A CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS IN THE MID 70S. HIGHS IN THE LOWER 90S. CHANCE OF RAIN
40 PERCENT. SOUTH WINDS AROUND 5 MPH.
FLZ247-210830-
INLAND NORTHERN BREVARD-
INCLUDING THE CITY OF CANAVERAL GROVES
333 PM EDT THU AUG 20 2026
..HEAT ADVISORY IN EFFECT UNTIL 7 PM EDT THIS EVENING
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY MCLEAR
PRECIP TYPE TSTMS TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 80 60 50 40
CHANCE OF THUNDER (%) 70 60 50 40
MIN/MAX TEMP 75 94 75 93
MAX/MIN RH % 100 60 100 62
20FT WND MPH (AM) LGT/VAR SW 4
20FT WND MPH (PM) LGT/VAR SW 5 S 4 SW 9
PRECIP AMOUNT 0.13 0.07 0.05 0.04
PRECIP DURATION 2 1 1 1
PRECIP BEGIN 6 PM 2 PM CONTINUING 2 PM
PRECIP END 9 PM CONTINUING 2 AM 6 PM
MIXING HGT(FT-AGL) 400 5800 400 5900
TRANSPORT WND (MPH) SE 6 SW 6 S 7 SW 12
DISPERSION INDEX 2 47 2 74
MAX LVORI 8 7
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 5
SUNDAY
PARTLY CLOUDY. SHOWERS AND THUNDERSTORMS LIKELY. LOWS
IN THE MID 70S. HIGHS IN THE LOWER 90S. CHANCE OF RAIN
60 PERCENT. SOUTHWEST WINDS AROUND 5 MPH.
MONDAY
PARTLY CLOUDY. A CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS IN THE MID 70S. HIGHS IN THE LOWER 90S. CHANCE OF RAIN
30 PERCENT. SOUTHWEST WINDS UP TO 5 MPH.
TUESDAY
PARTLY CLOUDY. A CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS IN THE MID 70S. HIGHS IN THE LOWER 90S. CHANCE OF RAIN
40 PERCENT. SOUTH WINDS AROUND 5 MPH.
FLZ347-210830-
MAINLAND NORTHERN BREVARD-
INCLUDING THE CITIES OF TITUSVILLE, PORT SAINT JOHN, AND MIMS
333 PM EDT THU AUG 20 2026
..HEAT ADVISORY IN EFFECT UNTIL 7 PM EDT THIS EVENING
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY MCLEAR
PRECIP TYPE TSTMS TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 70 60 50 40
CHANCE OF THUNDER (%) 70 50 50 40
MIN/MAX TEMP 75 94 75 93
MAX/MIN RH % 100 60 100 60
20FT WND MPH (AM) LGT/VAR SW 5
20FT WND MPH (PM) S 3 S 5 S 5 SW 8
PRECIP AMOUNT 0.08 0.08 0.05 0.04
PRECIP DURATION 2 1 1 1
PRECIP BEGIN 6 PM 2 PM CONTINUING 2 PM
PRECIP END 8 PM CONTINUING 2 AM CONTINUING
MIXING HGT(FT-AGL) 400 5800 400 5900
TRANSPORT WND (MPH) S 8 SW 6 S 7 SW 12
DISPERSION INDEX 2 44 3 72
MAX LVORI 7 7
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 5
SUNDAY
PARTLY CLOUDY. SHOWERS AND THUNDERSTORMS LIKELY. LOWS
IN THE MID 70S. HIGHS IN THE LOWER 90S. CHANCE OF RAIN
60 PERCENT. SOUTHWEST WINDS AROUND 5 MPH.
MONDAY
PARTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE MID 70S. HIGHS IN THE LOWER 90S.
CHANCE OF RAIN 20 PERCENT. SOUTHWEST WINDS AROUND 5 MPH.
TUESDAY
PARTLY CLOUDY. A CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS IN THE MID 70S. HIGHS IN THE LOWER 90S. CHANCE OF RAIN
30 PERCENT. SOUTH WINDS AROUND 5 MPH.
FLZ447-210830-
NORTHERN BREVARD BARRIER ISLANDS-
INCLUDING THE CITIES OF MERRITT ISLAND WILDLIFE REFUGE AND
PLAYALINDA BEACH
333 PM EDT THU AUG 20 2026
..HEAT ADVISORY IN EFFECT UNTIL 7 PM EDT THIS EVENING
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY MCLEAR
PRECIP TYPE TSTMS TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 60 50 50 40
CHANCE OF THUNDER (%) 50 50 50 40
MIN/MAX TEMP 76 94 75 94
MAX/MIN RH % 100 56 100 55
20FT WND MPH (AM) LGT/VAR SW 5
20FT WND MPH (PM) S 4 S 6 S 7 S 8
PRECIP AMOUNT 0.04 0.05 0.07 0.03
PRECIP DURATION 0 1 1 1
PRECIP BEGIN 6 PM 2 PM CONTINUING 2 PM
PRECIP END 8 PM CONTINUING 2 AM CONTINUING
MIXING HGT(FT-AGL) 400 5100 400 5700
TRANSPORT WND (MPH) SE 8 S 7 S 9 SW 10
DISPERSION INDEX 3 38 3 66
MAX LVORI 7 7
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 5
SUNDAY
PARTLY CLOUDY. SHOWERS AND THUNDERSTORMS LIKELY. LOWS
IN THE UPPER 70S. HIGHS IN THE LOWER 90S. CHANCE OF RAIN
60 PERCENT. SOUTHWEST WINDS AROUND 5 MPH.
MONDAY
PARTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE UPPER 70S. HIGHS AROUND 90. CHANCE OF
RAIN 20 PERCENT. SOUTHWEST WINDS AROUND 5 MPH.
TUESDAY
PARTLY CLOUDY. A CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS IN THE UPPER 70S. HIGHS AROUND 90. CHANCE OF RAIN
30 PERCENT. SOUTH WINDS AROUND 5 MPH.
FLZ547-210830-
INLAND SOUTHERN BREVARD-
INCLUDING THE CITIES OF PALM BAY WEST OF I 95 AND VIERA WEST
333 PM EDT THU AUG 20 2026
..HEAT ADVISORY IN EFFECT UNTIL 7 PM EDT THIS EVENING
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY MCLEAR
PRECIP TYPE TSTMS TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 70 50 50 50
CHANCE OF THUNDER (%) 70 50 50 50
MIN/MAX TEMP 75 94 74 94
MAX/MIN RH % 100 58 100 54
20FT WND MPH (AM) LGT/VAR SW 5
20FT WND MPH (PM) SE 3 SW 5 SE 5 SW 8
PRECIP AMOUNT 0.16 0.06 0.09 0.02
PRECIP DURATION 1 1 2 1
PRECIP BEGIN 6 PM 2 PM CONTINUING 2 PM
PRECIP END 10 PM CONTINUING 2 AM 6 PM
MIXING HGT(FT-AGL) 400 5700 400 5900
TRANSPORT WND (MPH) SE 7 SW 7 SE 8 SW 10
DISPERSION INDEX 2 47 3 72
MAX LVORI 7 7
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 5
SUNDAY
PARTLY CLOUDY. A CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS IN THE MID 70S. HIGHS IN THE LOWER 90S. CHANCE OF RAIN
50 PERCENT. SOUTHWEST WINDS AROUND 5 MPH.
MONDAY
PARTLY CLOUDY. A CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS IN THE MID 70S. HIGHS IN THE LOWER 90S. CHANCE OF RAIN
50 PERCENT. SOUTH WINDS AROUND 5 MPH.
TUESDAY
PARTLY CLOUDY. A CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS IN THE MID 70S. HIGHS IN THE LOWER 90S. CHANCE OF RAIN
40 PERCENT. SOUTH WINDS AROUND 5 MPH.
FLZ647-210830-
MAINLAND SOUTHERN BREVARD-
INCLUDING THE CITIES OF COCOA, ROCKLEDGE, AND MELBOURNE
333 PM EDT THU AUG 20 2026
..HEAT ADVISORY IN EFFECT UNTIL 7 PM EDT THIS EVENING
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY MCLEAR
PRECIP TYPE TSTMS TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 60 50 50 50
CHANCE OF THUNDER (%) 50 50 50 50
MIN/MAX TEMP 76 94 75 94
MAX/MIN RH % 100 60 97 56
20FT WND MPH (AM) SW 3 SW 5
20FT WND MPH (PM) SE 4 S 6 SE 7 S 8
PRECIP AMOUNT 0.09 0.06 0.10 0.04
PRECIP DURATION 0 1 2 1
PRECIP BEGIN 6 PM 2 PM CONTINUING 2 PM
PRECIP END 8 PM CONTINUING 2 AM 6 PM
MIXING HGT(FT-AGL) 400 5200 400 5600
TRANSPORT WND (MPH) SE 8 S 7 S 10 SW 9
DISPERSION INDEX 2 42 3 66
MAX LVORI 7 6
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 5
SUNDAY
PARTLY CLOUDY. A CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS IN THE MID 70S. HIGHS IN THE LOWER 90S. CHANCE OF RAIN
50 PERCENT. SOUTHWEST WINDS AROUND 5 MPH.
MONDAY
PARTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE MID 70S. HIGHS IN THE LOWER 90S.
CHANCE OF RAIN 20 PERCENT. SOUTHWEST WINDS AROUND 5 MPH.
TUESDAY
PARTLY CLOUDY. A CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS IN THE MID 70S. HIGHS IN THE LOWER 90S. CHANCE OF RAIN
30 PERCENT. SOUTHEAST WINDS AROUND 5 MPH.
FLZ747-210830-
SOUTHERN BREVARD BARRIER ISLANDS-
INCLUDING THE CITIES OF COCOA BEACH, SATELLITE BEACH,
AND MELBOURNE BEACH
333 PM EDT THU AUG 20 2026
..HEAT ADVISORY IN EFFECT UNTIL 7 PM EDT THIS EVENING
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY MCLEAR
PRECIP TYPE TSTMS TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 60 50 50 50
CHANCE OF THUNDER (%) 50 50 50 50
MIN/MAX TEMP 79 92 77 93
MAX/MIN RH % 100 60 100 56
20FT WND MPH (AM) SW 3 SW 6
20FT WND MPH (PM) SE 6 SE 8 S 9 S 9
PRECIP AMOUNT 0.04 0.04 0.14 0.03
PRECIP DURATION 0 1 2 1
PRECIP BEGIN 6 PM 2 PM CONTINUING 2 PM
PRECIP END 8 PM CONTINUING 2 AM CONTINUING
MIXING HGT(FT-AGL) 400 4700 400 4900
TRANSPORT WND (MPH) SE 9 SE 8 S 12 S 9
DISPERSION INDEX 3 31 4 52
MAX LVORI 6 6
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 5
SUNDAY
PARTLY CLOUDY. A CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS IN THE UPPER 70S. HIGHS AROUND 90. CHANCE OF RAIN
50 PERCENT. SOUTHWEST WINDS 5 TO 10 MPH.
MONDAY
PARTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE UPPER 70S. HIGHS IN THE UPPER 80S.
CHANCE OF RAIN 20 PERCENT. SOUTHWEST WINDS AROUND 5 MPH.
TUESDAY
PARTLY CLOUDY. A CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS IN THE UPPER 70S. HIGHS IN THE UPPER 80S. CHANCE OF RAIN
30 PERCENT. SOUTH WINDS AROUND 5 MPH.
FLZ254-210830-
INLAND INDIAN RIVER-
INCLUDING THE CITY OF FELLSMERE
333 PM EDT THU AUG 20 2026
..HEAT ADVISORY IN EFFECT UNTIL 7 PM EDT THIS EVENING
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY MCLEAR
PRECIP TYPE TSTMS TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 70 40 40 50
CHANCE OF THUNDER (%) 50 40 40 50
MIN/MAX TEMP 74 93 74 93
MAX/MIN RH % 100 58 100 56
20FT WND MPH (AM) LGT/VAR SW 4
20FT WND MPH (PM) SE 3 SW 5 S 4 SW 7
PRECIP AMOUNT 0.09 0.04 0.21 0.06
PRECIP DURATION 1 1 2 1
PRECIP BEGIN 6 PM 2 PM CONTINUING 2 PM
PRECIP END 9 PM CONTINUING 2 AM 6 PM
MIXING HGT(FT-AGL) 400 5100 400 5700
TRANSPORT WND (MPH) SE 7 SW 7 SE 6 SW 9
DISPERSION INDEX 2 47 3 61
MAX LVORI 8 8
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 5
SUNDAY
PARTLY CLOUDY. A CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS IN THE MID 70S. HIGHS IN THE LOWER 90S. CHANCE OF RAIN
50 PERCENT. SOUTHWEST WINDS AROUND 5 MPH.
MONDAY
PARTLY CLOUDY. A CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS IN THE MID 70S. HIGHS IN THE LOWER 90S. CHANCE OF RAIN
40 PERCENT. SOUTH WINDS AROUND 5 MPH.
TUESDAY
PARTLY CLOUDY. A CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS IN THE MID 70S. HIGHS IN THE LOWER 90S. CHANCE OF RAIN
40 PERCENT. SOUTHEAST WINDS AROUND 5 MPH.
FLZ154-210830-
COASTAL INDIAN RIVER-
INCLUDING THE CITIES OF SEBASTIAN AND VERO BEACH
333 PM EDT THU AUG 20 2026
..HEAT ADVISORY IN EFFECT UNTIL 7 PM EDT THIS EVENING
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY MCLEAR
PRECIP TYPE TSTMS TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 30 40 40 50
CHANCE OF THUNDER (%) 20 40 40 50
MIN/MAX TEMP 76 93 75 93
MAX/MIN RH % 97 58 100 54
20FT WND MPH (AM) SW 3 SW 5
20FT WND MPH (PM) SE 4 S 6 S 7 S 7
PRECIP AMOUNT 0.06 0.06 0.16 0.09
PRECIP DURATION 0 1 2 1
PRECIP BEGIN 6 PM 2 PM CONTINUING 2 PM
PRECIP END 8 PM CONTINUING 2 AM CONTINUING
MIXING HGT(FT-AGL) 400 5100 400 5300
TRANSPORT WND (MPH) SE 9 SW 7 S 9 SW 8
DISPERSION INDEX 3 45 3 50
MAX LVORI 6 6
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 5
SUNDAY
PARTLY CLOUDY. A CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS IN THE MID 70S. HIGHS IN THE LOWER 90S. CHANCE OF RAIN
50 PERCENT. SOUTHWEST WINDS AROUND 5 MPH.
MONDAY
PARTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE MID 70S. HIGHS IN THE LOWER 90S.
CHANCE OF RAIN 20 PERCENT. SOUTHWEST WINDS AROUND 5 MPH.
TUESDAY
PARTLY CLOUDY. A CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS IN THE MID 70S. HIGHS IN THE LOWER 90S. CHANCE OF RAIN
30 PERCENT. SOUTH WINDS AROUND 5 MPH.
FLZ259-210830-
INLAND SAINT LUCIE-
INCLUDING THE CITIES OF TRADITION AND SAINT LUCIE WEST
333 PM EDT THU AUG 20 2026
..HEAT ADVISORY IN EFFECT UNTIL 7 PM EDT THIS EVENING
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY MCLEAR
PRECIP TYPE TSTMS TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 40 50 30 50
CHANCE OF THUNDER (%) 40 50 30 50
MIN/MAX TEMP 74 93 74 93
MAX/MIN RH % 100 58 100 56
20FT WND MPH (AM) LGT/VAR SW 4
20FT WND MPH (PM) SE 3 SW 5 S 4 SW 6
PRECIP AMOUNT 0.05 0.06 0.05 0.06
PRECIP DURATION 0 1 1 1
PRECIP BEGIN 6 PM 2 PM CONTINUING 2 PM
PRECIP END 8 PM CONTINUING 2 AM 6 PM
MIXING HGT(FT-AGL) 400 5100 400 5600
TRANSPORT WND (MPH) SE 8 SW 8 S 9 SW 8
DISPERSION INDEX 2 48 3 52
MAX LVORI 8 8
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 5
SUNDAY
PARTLY CLOUDY. A CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS IN THE MID 70S. HIGHS IN THE LOWER 90S. CHANCE OF RAIN
50 PERCENT. SOUTHWEST WINDS AROUND 5 MPH.
MONDAY
PARTLY CLOUDY. A CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS IN THE MID 70S. HIGHS IN THE LOWER 90S. CHANCE OF RAIN
50 PERCENT. SOUTH WINDS AROUND 5 MPH.
TUESDAY
PARTLY CLOUDY. A CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS IN THE MID 70S. HIGHS IN THE LOWER 90S. CHANCE OF RAIN
40 PERCENT. SOUTHEAST WINDS AROUND 5 MPH.
FLZ159-210830-
COASTAL SAINT LUCIE-
INCLUDING THE CITIES OF FORT PIERCE AND PORT SAINT LUCIE
333 PM EDT THU AUG 20 2026
..HEAT ADVISORY IN EFFECT UNTIL 7 PM EDT THIS EVENING
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY MCLEAR
PRECIP TYPE TSTMS TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 20 50 30 50
CHANCE OF THUNDER (%) 20 50 30 50
MIN/MAX TEMP 75 93 75 92
MAX/MIN RH % 100 60 100 58
20FT WND MPH (AM) SW 4 SW 4
20FT WND MPH (PM) SE 4 S 6 S 6 S 7
PRECIP AMOUNT 0.03 0.07 0.04 0.07
PRECIP DURATION 0 1 1 1
PRECIP BEGIN 6 PM 2 PM CONTINUING 2 PM
PRECIP END 8 PM CONTINUING 2 AM 6 PM
MIXING HGT(FT-AGL) 400 4900 300 5100
TRANSPORT WND (MPH) S 10 S 8 SW 9 SW 7
DISPERSION INDEX 3 44 3 44
MAX LVORI 7 6
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 5
SUNDAY
PARTLY CLOUDY. A CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS IN THE MID 70S. HIGHS IN THE LOWER 90S. CHANCE OF RAIN
50 PERCENT. SOUTHWEST WINDS AROUND 5 MPH.
MONDAY
PARTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE MID 70S. HIGHS AROUND 90. CHANCE OF
RAIN 20 PERCENT. SOUTH WINDS AROUND 5 MPH.
TUESDAY
PARTLY CLOUDY. A CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS IN THE MID 70S. HIGHS AROUND 90. CHANCE OF RAIN 30 PERCENT.
SOUTH WINDS AROUND 5 MPH.
FLZ264-210830-
INLAND MARTIN-
INCLUDING THE CITY OF INDIANTOWN
333 PM EDT THU AUG 20 2026
..HEAT ADVISORY IN EFFECT UNTIL 7 PM EDT THIS EVENING
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY MCLEAR
PRECIP TYPE TSTMS TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 40 50 40 60
CHANCE OF THUNDER (%) 40 50 40 50
MIN/MAX TEMP 75 94 74 94
MAX/MIN RH % 100 58 100 56
20FT WND MPH (AM) S 4 SW 4
20FT WND MPH (PM) S 3 SW 5 S 4 SW 5
PRECIP AMOUNT 0.05 0.11 0.06 0.05
PRECIP DURATION 0 1 1 1
PRECIP BEGIN 6 PM 2 PM CONTINUING 2 PM
PRECIP END 8 PM CONTINUING 2 AM 6 PM
MIXING HGT(FT-AGL) 400 5500 400 5500
TRANSPORT WND (MPH) S 7 SW 8 SE 9 SW 7
DISPERSION INDEX 3 44 3 45
MAX LVORI 8 8
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 5
SUNDAY
PARTLY CLOUDY. A CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS IN THE MID 70S. HIGHS IN THE LOWER 90S. CHANCE OF RAIN
50 PERCENT. SOUTHWEST WINDS AROUND 5 MPH.
MONDAY
PARTLY CLOUDY. A CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS IN THE MID 70S. HIGHS IN THE LOWER 90S. CHANCE OF RAIN
50 PERCENT. SOUTH WINDS AROUND 5 MPH.
TUESDAY
PARTLY CLOUDY. A CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS IN THE MID 70S. HIGHS IN THE LOWER 90S. CHANCE OF RAIN
40 PERCENT. SOUTHEAST WINDS AROUND 5 MPH.
FLZ164-210830-
COASTAL MARTIN-
INCLUDING THE CITIES OF HOBE SOUND, JENSEN BEACH, AND STUART
333 PM EDT THU AUG 20 2026
..HEAT ADVISORY IN EFFECT UNTIL 7 PM EDT THIS EVENING
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY MCLEAR
PRECIP TYPE TSTMS TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 30 60 40 60
CHANCE OF THUNDER (%) 30 50 40 60
MIN/MAX TEMP 76 94 75 94
MAX/MIN RH % 100 54 100 53
20FT WND MPH (AM) SW 4 SW 4
20FT WND MPH (PM) S 4 S 6 S 5 S 6
PRECIP AMOUNT 0.03 0.14 0.08 0.05
PRECIP DURATION 0 1 1 3
PRECIP BEGIN 6 PM 2 PM CONTINUING 2 PM
PRECIP END 8 PM CONTINUING 2 AM 6 PM
MIXING HGT(FT-AGL) 400 5200 400 5300
TRANSPORT WND (MPH) S 9 SW 7 S 12 S 7
DISPERSION INDEX 3 41 4 42
MAX LVORI 6 6
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 5
SUNDAY
PARTLY CLOUDY. A CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS IN THE MID 70S. HIGHS IN THE LOWER 90S. CHANCE OF RAIN
50 PERCENT. SOUTHWEST WINDS AROUND 5 MPH.
MONDAY
PARTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE UPPER 70S. HIGHS IN THE LOWER 90S.
CHANCE OF RAIN 20 PERCENT. SOUTH WINDS AROUND 5 MPH.
TUESDAY
PARTLY CLOUDY. A CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS IN THE UPPER 70S. HIGHS IN THE LOWER 90S. CHANCE OF RAIN
30 PERCENT. SOUTH WINDS AROUND 5 MPH.
FLZ058-210830-
OKEECHOBEE-
INCLUDING THE CITIES OF BASINGER, FORT DRUM, AND OKEECHOBEE
333 PM EDT THU AUG 20 2026
..HEAT ADVISORY IN EFFECT UNTIL 7 PM EDT THIS EVENING
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY MCLEAR
PRECIP TYPE TSTMS TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 70 50 40 50
CHANCE OF THUNDER (%) 70 50 40 50
MIN/MAX TEMP 73 93 73 92
MAX/MIN RH % 100 54 100 54
20FT WND MPH (AM) LGT/VAR SW 3
20FT WND MPH (PM) LGT/VAR SW 4 S 3 SW 6
PRECIP AMOUNT 0.10 0.04 0.18 0.05
PRECIP DURATION 2 1 2 1
PRECIP BEGIN 6 PM 2 PM CONTINUING 2 PM
PRECIP END 9 PM CONTINUING 2 AM 6 PM
MIXING HGT(FT-AGL) 400 4900 400 5800
TRANSPORT WND (MPH) SE 7 SW 8 S 7 SW 8
DISPERSION INDEX 2 46 3 63
MAX LVORI 10 8
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 5
SUNDAY
PARTLY CLOUDY. A CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS IN THE LOWER 70S. HIGHS IN THE LOWER 90S. CHANCE OF RAIN
50 PERCENT. SOUTHWEST WINDS UP TO 5 MPH.
MONDAY
PARTLY CLOUDY. A CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS IN THE LOWER 70S. HIGHS IN THE LOWER 90S. CHANCE OF RAIN
50 PERCENT. SOUTH WINDS UP TO 5 MPH.
TUESDAY
PARTLY CLOUDY. A CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS IN THE LOWER 70S. HIGHS IN THE LOWER 90S. CHANCE OF RAIN
40 PERCENT. SOUTH WINDS UP TO 5 MPH.
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