625
FNUS74 KBMX 140639
FWSBMX
SPOT FORECAST FOR TRAMMEL A RX...USFS
NATIONAL WEATHER SERVICE BIRMINGHAM AL
139 AM CDT THU MAY 14 2026
FORECAST IS BASED ON IGNITION TIME OF 0600 CDT ON MAY 14.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
RH VALUES DROP INTO THE 30 TO 35 PERCENT RANGE AT THE TRAMMEL A
BURN SITE THIS AFTERNOON BEHIND A DRY COLD FRONT. 20 FT WINDS WILL
BE OUT OF THE NORTH AT 5 TO 7 MPH, GUSTING TO AROUND 12 MPH, WHILE
TRANSPORT WINDS WILL ALSO BE OUT OF THE NORTH AT 15 TO 17 MPH.
20FT WINDS BECOME VERY LIGHT TO CALM TONIGHT WHILE TRANSPORT
WINDS SHIFT FROM NORTHERLY TO EASTERLY. RH VALUES DROP TO AROUND
30 PERCENT FRIDAY AFTERNOON WITH LIGHT 20FT WINDS. TRANSPORT WINDS
WILL SHIFT FROM EASTERLY TO SOUTHERLY.
TODAY
SKY/WEATHER.........SUNNY (0-5 PERCENT).
CWR.................0 PERCENT.
MAX TEMPERATURE.....AROUND 74.
MIN HUMIDITY........32 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING NORTH 5 TO 7 MPH EARLY IN
THE MORNING.
MIXING HEIGHT.......4700 FT AGL.
TRANSPORT WINDS.....NORTH 10 TO 17 MPH.
DISPERSION INDEX....9 INCREASING TO 74 LATE IN THE MORNING.
LVORI...............3.
TIME (CDT) 6 AM 8 AM 10 AM NOON 2 PM 4 PM
SKY (%).........1 0 1 1 1 2
WEATHER COV.....
WEATHER TYPE....NONE NONE NONE NONE NONE NONE
TSTM COV........
CWR.............0 0 0 0 0 0
TEMP............56 58 66 70 72 73
RH..............72 69 48 39 34 33
20 FT WIND......N 3 N 5 N 7 N 7 N 7 N 6
20 FT WIND GUST.10 13 12 12 12 11
20 FT WIND DIR..000 020 010 350 350 340
MIX HGT (FT)....400 1500 3300 4300 4700 4600
TRANSPORT WIND..N 10 N 15 N 17 N 15 N 14 N 14
DISPERSION IDX..5 7 12 75 75 75
LVORI...........4 3 1 1 1 1
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR (5-15 PERCENT).
CWR.................0 PERCENT.
MIN TEMPERATURE.....AROUND 48.
MAX HUMIDITY........80 PERCENT.
WIND (20 FT)........LIGHT WINDS.
MIXING HEIGHT.......400 FT AGL.
TRANSPORT WINDS.....NORTH 7 TO 13 MPH SHIFTING TO THE EAST
OVERNIGHT.
DISPERSION INDEX....51 DECREASING TO 5.
LVORI...............3.
TIME (CDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM
SKY (%).........4 4 5 2 13 14
WEATHER COV.....
WEATHER TYPE....NONE NONE NONE NONE NONE NONE
TSTM COV........
CWR.............0 0 0 0 0 0
TEMP............72 65 56 54 50 48
RH..............37 52 64 69 77 80
20 FT WIND......N 3 N 2 NE 1 NE 1 E 1 E 1
20 FT WIND GUST.10 8 6 5 5 5
20 FT WIND DIR..340 350 030 050 070 090
MIX HGT (FT)....3200 400 400 400 400 400
TRANSPORT WIND..N 13 N 9 N 8 N 7 E 8 E 8
DISPERSION IDX..51 4 4 3 4 4
LVORI...........1 2 3 3 4 4
FRIDAY
SKY/WEATHER.........SUNNY (5-15 PERCENT).
CWR.................0 PERCENT.
MAX TEMPERATURE.....AROUND 80.
MIN HUMIDITY........30 PERCENT.
WIND (20 FT)........LIGHT WINDS.
MIXING HEIGHT.......5100 FT AGL.
TRANSPORT WINDS.....SOUTHEAST 5 TO 9 MPH SHIFTING TO THE SOUTH 3 TO
7 MPH IN THE AFTERNOON.
DISPERSION INDEX....4 INCREASING TO 44.
LVORI...............3.
TIME (CDT) 6 AM 8 AM 10 AM NOON 2 PM 4 PM
SKY (%).........5 13 15 15 9 14
WEATHER COV.....
WEATHER TYPE....NONE NONE NONE NONE NONE NONE
TSTM COV........
CWR.............0 0 0 0 0 0
TEMP............50 57 69 75 78 80
RH..............77 67 44 34 31 30
20 FT WIND......E 1 E 2 SE 2 SE 2 S 2 S 2
20 FT WIND GUST.6 6 7 6 6 6
20 FT WIND DIR..100 110 130 150 180 190
MIX HGT (FT)....400 1100 2500 3600 5100 3800
TRANSPORT WIND..E 9 E 9 SE 6 SE 5 S 5 S 6
DISPERSION IDX..4 4 3 21 29 28
LVORI...........4 3 2 2 2 2
FORECASTER...JDAVIS
REQUESTED BY...MICHAEL LARSON
TYPE OF REQUEST...PRESCRIBED
.TAG 2613478.2/BMX
.DELDT 05/14/26
.FORMATTERVERSION 2.0.0
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