507
FNUS74 KBMX 181107
FWSBMX

Spot Forecast for Gravity Hill...USFS
National Weather Service Birmingham AL
507 AM CST Tue Nov 18 2025

Forecast is based on forecast start time of 0700 CST on November 18.
If conditions become unrepresentative...contact the National Weather
Service.

.DISCUSSION...

Very dry conditions are going to persist across the region today,
with MinRH values dropping below 30% for most of the region.
Surface winds will remain near 5 MPH for most of the day, with
transport winds ranging between 10-15 MPH. Otherwise, no rain is
expected today, with rain not anticipated until closer to the
weekend.

.REST OF TODAY...

Sky/weather.........Sunny (5-15 percent).
CWR.................0 percent.
Max temperature.....Around 74.
Min humidity........26 percent.
Wind (20 ft)........Light winds becoming south 5 to 6 mph in the
                    late morning and afternoon.
Mixing height.......3500 ft AGL.
Transport winds.....South 9 to 16 mph.
Dispersion index....5 increasing to 31 late in the morning, then
                    increasing to 42 early in the afternoon
                    increasing to 65 early in the afternoon
                    decreasing to 57 decreasing to 16 late in the
                    afternoon decreasing to 5.
LVORI...............2.

TIME (CST)      7 AM   9 AM   11 AM  1 PM   3 PM   5 PM
Sky (%).........5      4      9      9      5      15
Weather cov.....
Weather type....NONE   NONE   NONE   NONE   NONE   NONE
Tstm cov........
CWR.............0      0      0      0      0      0
Temp............47     60     70     72     72     68
RH..............49     33     26     29     35     42
20 FT wind......SE 2   S 5    S 5    S 6    S 6    S 5
20 FT wind gust.7      10     10     12     12     11
20 FT wind dir..140    160    190    200    200    180
Mix hgt (ft)....300    900    2100   3300   3100   400
Transport wind..S 9    S 13   S 12   S 15   S 15   S 9
Dispersion idx..4      6      31     60     57     5
LVORI...........2      2      2      1      2      2

.TONIGHT...

Sky/weather.........Partly cloudy (30-40 percent) then becoming
                    mostly cloudy (55-65 percent).
CWR.................0 percent.
Min temperature.....Around 58.
Max humidity........100 percent.
Wind (20 ft)........Light winds becoming southwest around 5 mph
                    early in the evening.
Mixing height.......300 ft AGL.
Transport winds.....Southwest 9 to 13 mph.
Dispersion index....6.
LVORI...............5.

TIME (CST)      6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
Sky (%).........23     16     21     42     56     64
Weather cov.....
Weather type....NONE   NONE   NONE   NONE   NONE   NONE
Tstm cov........
CWR.............0      0      0      0      0      0
Temp............62     61     60     61     60     60
RH..............56     60     69     75     87     93
20 FT wind......S 3    S 5    S 5    SW 5   SW 5   SW 5
20 FT wind gust.10     11     11     12     12     12
20 FT wind dir..180    190    200    210    220    230
Mix hgt (ft)....300    300    400    400    400    400
Transport wind..S 9    S 10   SW 12  SW 12  SW 13  SW 12
Dispersion idx..4      4      6      8      8      8
LVORI...........3      3      3      4      4      6

.WEDNESDAY...

Sky/weather.........Partly sunny (45-55 percent).
CWR.................0 percent.
Max temperature.....Around 78.
Min humidity........54 percent.
Wind (20 ft)........West winds 5 to 6 mph in the morning and early
                    afternoon becoming light.
Mixing height.......2500 ft AGL.
Transport winds.....West 7 to 13 mph.
Dispersion index....8 increasing to 26 late in the morning, then
                    increasing to 34 early in the afternoon
                    decreasing to 21 late in the afternoon
                    decreasing to 7.
LVORI...............5.

TIME (CST)      6 AM   8 AM   10 AM  NOON   2 PM   4 PM
Sky (%).........64     56     58     53     44     45
Weather cov.....
Weather type....NONE   NONE   NONE   NONE   NONE   NONE
Tstm cov........
CWR.............0      0      0      0      0      0
Temp............60     63     70     75     78     75
RH..............96     97     76     64     54     62
20 FT wind......SW 5   W 5    W 5    W 6    W 6    W 3
20 FT wind gust.11     11     11     10     10     10
20 FT wind dir..230    250    250    260    260    260
Mix hgt (ft)....400    800    1700   2400   2400   1500
Transport wind..W 10   W 12   W 13   W 13   W 10   W 8
Dispersion idx..7      8      8      27     31     16
LVORI...........8      8      4      1      1      2

$$
Forecaster...ADavis
Requested by...Will holt
Type of request...WILDFIRE
.TAG 2526230.0/BMX
.DELDT 11/18/25
.FormatterVersion 2.0.0