515
FNUS72 KMLB 180644
FWSMLB
SPOT FORECAST FOR BURN UNIT 11...CITY OF PORT ORANGE
NATIONAL WEATHER SERVICE MELBOURNE FL
244 AM EDT FRI SEP 18 2026
FORECAST IS BASED ON IGNITION TIME OF 0600 EDT ON SEPTEMBER 18.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
ONSHORE WINDS WILL NOT BE AS BREEZY AS YESTERDAY, BUT
NORTHEAST WINDS WILL STILL INCREASE TO 10-15 MPH INTO LATE MORNING
AND AFTERNOON, WITH WIND GUSTS UP TO 20-25 MPH. ISOLATED TO
SCATTERED ONSHORE MOVING SHOWERS WILL BE POSSIBLE ACROSS THE BURN
SITE INTO THE MORNING, WITH ADDITIONAL SCATTERED SHOWERS AND STORMS
NEAR OR IN THE VICINITY OF THE BURN SITE INTO THE AFTERNOON AS A
DIFFUSE EAST COAST SEA BREEZE MOVES INLAND. ISOLATED STRONG STORMS
MAY OCCUR, PRODUCING STRONG AND ERRATIC WIND GUSTS, FREQUENT
LIGHTNING, AND LOCALLY HEAVY DOWNPOURS. ONSHORE FLOW WILL KEEP MIN
RH VALUES AT OR ABOVE 60 PERCENT, WITH GENERALLY GOOD DISPERSION
FORECAST.
NORTHEAST WINDS DECREASE PAST SUNSET, WITH ISOLATED ONSHORE MOVING
SHOWERS AND STORMS CONTINUING TO BE POSSIBLE INTO THE EVENING.
WINDS
TODAY
SKY/WEATHER.........MOSTLY SUNNY (40-50 PERCENT). SLIGHT CHANCE OF
THUNDERSTORMS IN THE MORNING. CHANCE OF SHOWERS
THROUGH THE DAY. CHANCE OF THUNDERSTORMS IN THE
AFTERNOON.
CHANCE OF PCPN......40 PERCENT.
MAX TEMPERATURE.....AROUND 89.
MIN HUMIDITY........61 PERCENT.
WIND (20 FT)........NORTHEAST WINDS 5 TO 10 MPH INCREASING TO 10 TO
15 MPH IN THE LATE MORNING AND AFTERNOON, WITH
GUSTS UP TO 20 TO 25 MPH POSSIBLE. GUSTY AND
ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS.
MIXING HEIGHT.......1700 FT AGL INCREASING TO 3600 FT AGL IN THE
LATE MORNING AND AFTERNOON.
TRANSPORT WINDS.....NORTHEAST 7 TO 14 MPH.
DISPERSION INDEX....5 INCREASING TO 46.
LVORI...............6 DECREASING TO 1.
TIME (EDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........44 42 38 39 38 41 44 42 43 44 50 51
WEATHER COV.....SCH SCH CHC CHC CHC CHC CHC CHC CHC SCH SCH SCH
WEATHER TYPE....RW RW RW RW RW RW RW RW RW RW RW RW
TSTM COV........ SCH SCH SCH SCH CHC CHC CHC SCH SCH SCH
CHC OF PCPN (%).20 20 30 30 30 30 40 40 30 20 20 20
TEMP............76 75 77 79 83 85 86 86 87 87 87 85
RH..............87 90 85 85 77 67 65 65 63 63 61 65
20 FT WIND DIR..N NE NE NE NE NE NE NE NE NE NE NE
20 FT WIND SPD..5 5 6 8 9 12 13 14 14 14 13 12
20 FT WIND GUST.12 12 13 14 16 18 20 21 22 22 22 21
MIX HGT (KFT)...0.4 0.4 0.5 1.7 3.0 3.3 3.6 3.4 3.4 3.5 3.6 3.5
TRANSP WIND DIR.NE NE NE NE E NE NE NE E NE NE NE
TRANSP WIND SPD.8 7 7 9 13 14 14 13 13 13 13 13
DISPERSION IDX..5 5 4 20 45 46 46 45 43 44 45 44
LVORI...........5 6 6 4 3 2 2 1 1 1 1 1
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (25-35 PERCENT). SLIGHT CHANCE OF
THUNDERSTORMS IN THE EVENING. SLIGHT CHANCE OF
SHOWERS IN THE EVENING AND OVERNIGHT.
CHANCE OF PCPN......20 PERCENT.
MIN TEMPERATURE.....AROUND 73.
MAX HUMIDITY........93 PERCENT.
WIND (20 FT)........NORTHEAST WINDS 5 TO 9 MPH EARLY IN THE EVENING
BECOMING LIGHT. GUSTY AND ERRATIC WINDS
EXPECTED NEAR THUNDERSTORMS IN THE EVENING.
MIXING HEIGHT.......1600 FT AGL DECREASING TO 400 FT AGL EARLY IN
THE EVENING.
TRANSPORT WINDS.....NORTHEAST 5 TO 12 MPH.
DISPERSION INDEX....38 DECREASING TO 4.
LVORI...............4 INCREASING TO 6 IN THE LATE EVENING AND
OVERNIGHT.
TIME (EDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........44 39 43 40 30 30 27 25 20 19 19 23
WEATHER COV.....SCH SCH SCH SCH SCH SCH SCH SCH
WEATHER TYPE....RW RW RW RW RW RW RW RW
TSTM COV........SCH SCH SCH SCH SCH
CHC OF PCPN (%).20 20 20 20 20 20 20 20 10 10 10 10
TEMP............84 83 79 78 77 77 77 76 76 75 75 74
RH..............67 70 79 79 82 82 82 85 85 87 87 90
20 FT WIND DIR..NE NE NE NE NE NE N N N N N N
20 FT WIND SPD..9 7 5 3 2 1 1 1 1 1 1 1
20 FT WIND GUST.17 13 12 9 7 6 5 3 5 5 5 6
MIX HGT (KFT)...2.7 1.6 0.7 0.4 0.5 0.4 0.4 0.4 0.4 0.4 0.4 0.4
TRANSP WIND DIR.NE E NE NE NE NE NE NE NE NE NE N
TRANSP WIND SPD.12 10 8 7 6 6 5 5 5 5 5 5
DISPERSION IDX..38 21 5 3 3 2 2 2 2 2 2 2
LVORI...........3 3 4 5 5 5 5 6 6 6 6 6
SATURDAY
SKY/WEATHER.........MOSTLY SUNNY (30-40 PERCENT). SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS IN THE MORNING, THEN
CHANCE OF SHOWERS AND THUNDERSTORMS IN THE
AFTERNOON.
CHANCE OF PCPN......40 PERCENT.
MAX TEMPERATURE.....AROUND 89.
MIN HUMIDITY........59 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING NORTHEAST 6 TO 10 MPH IN
THE LATE MORNING AND AFTERNOON. GUSTY AND
ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS EARLY
IN THE MORNING. GUSTY AND ERRATIC WINDS
EXPECTED NEAR THUNDERSTORMS LATE IN THE
MORNING. GUSTY AND ERRATIC WINDS EXPECTED NEAR
THUNDERSTORMS LATE IN THE AFTERNOON.
MIXING HEIGHT.......1800 FT AGL INCREASING TO 3700 FT AGL IN THE
LATE MORNING AND AFTERNOON.
TRANSPORT WINDS.....NORTHEAST 5 TO 9 MPH INCREASING TO 9 TO 10 MPH
LATE IN THE AFTERNOON.
DISPERSION INDEX....2 INCREASING TO 36.
LVORI...............6 DECREASING TO 4 LATE IN THE MORNING, THEN
DECREASING TO 2 EARLY IN THE AFTERNOON
INCREASING TO 3 LATE IN THE AFTERNOON.
TIME (EDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........21 23 25 28 31 30 35 41 53 53 51 41
WEATHER COV..... SCH SCH SCH SCH SCH CHC CHC CHC CHC CHC SCH
WEATHER TYPE.... RW RW RW RW RW RW RW RW RW RW RW
TSTM COV........ SCH SCH SCH SCH CHC CHC CHC SCH
CHC OF PCPN (%).10 20 20 20 20 20 30 30 40 30 30 20
TEMP............74 73 75 78 83 85 86 87 87 88 86 84
RH..............90 93 90 88 74 67 65 63 63 59 63 67
20 FT WIND DIR..N N N N NE NE NE NE NE NE NE NE
20 FT WIND SPD..1 2 3 3 6 7 8 9 9 10 10 9
20 FT WIND GUST.6 6 8 8 9 12 13 15 16 17 17 17
MIX HGT (KFT)...0.4 0.4 0.4 1.8 2.9 3.2 3.7 3.6 3.5 3.2 2.9 2.8
TRANSP WIND DIR.N N N NE NE NE NE NE NE E NE E
TRANSP WIND SPD.5 5 5 6 7 7 8 9 9 10 10 9
DISPERSION IDX..2 2 2 15 26 29 37 40 39 39 37 32
LVORI...........6 6 6 4 3 3 2 2 1 1 3 3
FORECASTER...WEITLICH
REQUESTED BY...ROGER BURDA
TYPE OF REQUEST...PRESCRIBED
.TAG 2622083.0/MLB
.DELDT 09/18/26
.FORMATTERVERSION 2.0.0
.EMAIL RBURDA@PORT-ORANGE.ORG
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