050
FNUS74 KBMX 060247
FWSBMX
SPOT FORECAST FOR FLAG MTN A-E...USFS
NATIONAL WEATHER SERVICE BIRMINGHAM AL
847 PM CST THU MAR 5 2026
FORECAST IS BASED ON IGNITION TIME OF 2100 CST ON MARCH 05.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
LIGHT WINDS ARE EXPECTED OVERNIGHT AT THE FLAG MTN A-E BURN SITE,
WITH RH VALUES INCREASING TO NEAR 100 PERCENT, RESULTING IN SOME
FOG OR LOW CLOUD BASES BY MORNING. ANY FOG SHOULD DISSIPATE BY MID
MORNING. RH VALUES WILL BE IN THE 50-55 PERCENT RANGE BY
AFTERNOON FRIDAY, WITH SCATTERED SHOWERS AND THUNDERSTORMS
DEVELOPING DURING THE AFTERNOON AND EVENING HOURS. 20FT WINDS WILL
BE OUT OF THE SOUTH AT 5 MPH GUSTING TO AROUND 13 MPH, BUT
STRONGER/ERRATIC WIND GUSTS CAN BE EXPECTED NEAR THUNDERSTORMS.
TRANSPORT WINDS WILL BE OUT OF THE SOUTH AROUND 15 MPH. CHANCES
FOR SHOWERS AND STORMS WILL RETURN SATURDAY AFTERNOON.
REST OF TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (35-45 PERCENT) THEN BECOMING
MOSTLY CLOUDY (50-60 PERCENT).
CWR.................0 PERCENT.
MIN TEMPERATURE.....AROUND 58.
MAX HUMIDITY........100 PERCENT.
WIND (20 FT)........LIGHT WINDS.
MIXING HEIGHT.......300 FT AGL.
TRANSPORT WINDS.....SOUTH 6 TO 8 MPH.
DISPERSION INDEX....4.
LVORI...............7.
TIME (CST) 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........43 37 47 51 52 55 58 62 62
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0
TEMP............64 63 62 61 60 60 60 59 59
RH..............78 81 84 90 93 93 93 96 100
20 FT WIND DIR..S SE SE SE SE SE SE SE SE
20 FT WIND DIR..160 150 150 150 150 150 140 130 130
20 FT WIND SPD..2 2 2 2 2 2 2 2 2
20 FT WIND GUST.6 6 6 7 6 6 6 6 6
MIX HGT (KFT)...0.3 0.4 0.4 0.4 0.4 0.3 0.3 0.3 0.3
TRANSP WIND DIR.S S S S S S S S S
TRANSP WIND SPD.6 7 8 8 8 8 8 7 7
DISPERSION IDX..3 3 4 4 4 4 4 3 3
LVORI...........5 5 5 6 6 6 8 8 8
FRIDAY
SKY/WEATHER.........PARTLY SUNNY (50-60 PERCENT). SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS LATE IN THE MORNING.
CHANCE OF SHOWERS AND THUNDERSTORMS IN THE
AFTERNOON.
CWR.................0 PERCENT INCREASING TO 30 PERCENT.
MAX TEMPERATURE.....AROUND 80.
MIN HUMIDITY........54 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING SOUTH 5 TO 6 MPH IN THE
LATE MORNING AND AFTERNOON, THEN BECOMING LIGHT
LATE IN THE AFTERNOON. GUSTY AND ERRATIC WINDS
EXPECTED NEAR THUNDERSTORMS IN THE LATE MORNING
AND AFTERNOON.
MIXING HEIGHT.......3700 FT AGL.
TRANSPORT WINDS.....SOUTH 7 TO 16 MPH.
DISPERSION INDEX....6 INCREASING TO 41 LATE IN THE MORNING, THEN
INCREASING TO 62 EARLY IN THE AFTERNOON
DECREASING TO 49 LATE IN THE AFTERNOON
DECREASING TO 37 DECREASING TO 10 LATE IN THE
AFTERNOON.
LVORI...............5.
TIME (CST) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........72 72 65 62 60 57 48 49 42 40 36 45
WEATHER COV..... SCH SCH SCH CHC CHC CHC CHC CHC CHC
WEATHER TYPE.... RW RW RW RW RW RW RW RW RW
TSTM COV........ SCH SCH SCH CHC CHC CHC CHC CHC CHC
CWR.............0 0 0 20 20 20 30 30 30 30 30 30
TEMP............58 60 64 68 72 74 77 78 79 79 78 75
RH..............100 96 90 84 73 69 62 58 54 54 56 64
20 FT WIND DIR..SE SE SE S S S S S S S S S
20 FT WIND DIR..130 130 150 160 170 180 180 190 190 180 180 180
20 FT WIND SPD..2 2 2 3 5 5 6 5 5 5 5 3
20 FT WIND GUST.6 7 10 10 12 13 13 13 13 12 11 10
MIX HGT (KFT)...0.3 0.3 0.8 1.4 1.9 2.2 2.9 3.4 3.7 2.9 2.6 0.6
TRANSP WIND DIR.SE SE S S S S S S S S S S
TRANSP WIND SPD.7 7 12 14 14 15 16 16 15 14 12 12
DISPERSION IDX..3 3 5 9 9 41 58 66 66 49 37 10
LVORI...........8 8 8 3 3 3 1 1 1 1 1 1
FRIDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY (40-50 PERCENT) THEN BECOMING
MOSTLY CLOUDY (50-60 PERCENT) THEN BECOMING
PARTLY CLOUDY (45-55 PERCENT) THEN BECOMING
MOSTLY CLOUDY (45-55 PERCENT). CHANCE OF
SHOWERS AND THUNDERSTORMS IN THE EVENING.
CWR.................30 PERCENT DECREASING TO 10 PERCENT OVERNIGHT.
MIN TEMPERATURE.....AROUND 60.
MAX HUMIDITY........100 PERCENT.
WIND (20 FT)........LIGHT WINDS. GUSTY AND ERRATIC WINDS EXPECTED
NEAR THUNDERSTORMS IN THE EVENING.
MIXING HEIGHT.......400 FT AGL.
TRANSPORT WINDS.....SOUTH 10 TO 14 MPH.
DISPERSION INDEX....4.
LVORI...............7.
TIME (CST) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........46 47 51 54 52 50 48 47 46 45 48 52
WEATHER COV.....CHC CHC CHC CHC CHC CHC
WEATHER TYPE....RW RW RW RW RW RW
TSTM COV........CHC CHC CHC CHC CHC CHC
CWR.............30 30 30 30 30 30 10 10 10 10 10 10
TEMP............71 70 69 67 66 65 64 63 63 62 62 61
RH..............76 76 78 84 87 90 93 97 97 100 100 100
20 FT WIND DIR..S S S S S S S S S S S S
20 FT WIND DIR..170 160 160 160 160 160 160 160 170 170 170 170
20 FT WIND SPD..2 2 2 2 2 2 2 2 2 2 2 2
20 FT WIND GUST.10 8 8 10 10 10 10 10 10 10 10 10
MIX HGT (KFT)...0.4 0.4 0.5 0.5 0.5 0.4 0.4 0.5 0.5 0.5 0.6 0.6
TRANSP WIND DIR.S S S S S S S S S S S S
TRANSP WIND SPD.12 10 10 12 12 10 10 10 12 13 13 14
DISPERSION IDX..7 6 0 0 0 6 5 5 5 6 6 6
LVORI...........4 4 4 6 6 6 7 7 7 9 9 9
SATURDAY
SKY/WEATHER.........MOSTLY SUNNY (45-55 PERCENT). CHANCE OF SHOWERS
AND SLIGHT CHANCE OF THUNDERSTORMS IN THE
AFTERNOON.
CWR.................0 PERCENT INCREASING TO 40 PERCENT IN THE
AFTERNOON.
MAX TEMPERATURE.....AROUND 81.
MIN HUMIDITY........49 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING SOUTHWEST 5 TO 7 MPH IN
THE LATE MORNING AND AFTERNOON, THEN BECOMING
LIGHT LATE IN THE AFTERNOON. GUSTY AND ERRATIC
WINDS EXPECTED NEAR THUNDERSTORMS IN THE
AFTERNOON.
MIXING HEIGHT.......5700 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 13 TO 18 MPH.
DISPERSION INDEX....9 INCREASING TO 62 LATE IN THE MORNING, THEN
INCREASING TO 75 EARLY IN THE AFTERNOON
INCREASING TO 90 EARLY IN THE AFTERNOON
INCREASING TO 108 DECREASING TO 71 LATE IN THE
AFTERNOON DECREASING TO 25.
LVORI...............4.
TIME (CST) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........55 53 51 49 47 44 42 42 41 41 50 59
WEATHER COV..... CHC CHC CHC CHC CHC CHC
WEATHER TYPE.... RW RW RW RW RW RW
TSTM COV........ SCH SCH SCH SCH SCH SCH
CWR.............0 0 0 0 0 0 40 40 40 40 40 40
TEMP............61 63 66 68 71 74 77 78 80 81 78 75
RH..............100 97 87 84 76 66 60 56 52 49 56 62
20 FT WIND DIR..S S S S S S S SW SW SW SW SW
20 FT WIND DIR..170 180 190 190 190 200 200 210 220 220 220 210
20 FT WIND SPD..2 3 3 5 6 7 7 7 7 6 5 3
20 FT WIND GUST.10 10 12 14 14 14 14 14 14 14 12 10
MIX HGT (KFT)...0.7 1.0 1.3 1.5 2.1 2.7 3.3 4.1 4.9 5.7 3.9 2.2
TRANSP WIND DIR.S S S S S SW SW SW SW SW SW SW
TRANSP WIND SPD.14 15 15 16 17 18 18 18 18 17 15 13
DISPERSION IDX..6 10 10 11 12 62 75 90 105 111 71 25
LVORI...........6 6 6 3 3 3 1 1 1 1 1 1
FORECASTER...JDAVIS
REQUESTED BY...TROY MCFARLAND
TYPE OF REQUEST...PRESCRIBED
.TAG 2604820.1/BMX
.DELDT 03/05/26
.FORMATTERVERSION 2.0.0
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page