381
FNUS74 KBMX 181142
FWSBMX
SPOT FORECAST FOR SLANT ROCK 4/18/2025...NPS
NATIONAL WEATHER SERVICE BIRMINGHAM AL
642 AM CDT FRI APR 18 2025
FORECAST IS BASED ON IGNITION TIME OF 0700 CDT ON APRIL 18.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
EXPECT DRY CONDITIONS TO PERSIST THROUGH LATE IN THE DAY ON
SUNDAY. HIGH TEMPERATURES TODAY WILL REACH INTO THE MID 80S BY MID
AFTERNOON WITH RH MINIMUMS FALLING TO NEAR 20 PERCENT BY MID TO
LATE AFTERNOON. WINDS WILL BE FROM THE SOUTH AT 6-12 MPH. SIMILAR
CONDITIONS ARE IN STORE FOR SATURDAY, THOUGH RH MINIMUMS WILL
BOTTOM OUT NEAR 30 PERCENT. HUMIDITY VALUES WILL INCREASE FURTHER
SATURDAY NIGHT INTO SUNDAY AS A FRONT APPROACHES THE AREA AND
STALLS, RESULTING IN RAIN CHANCES RETURNING TO THE AREA LATE
SUNDAY AND PERSISTING THROUGH MUCH OF THE UPCOMING WORK WEEK.
REST OF TODAY
SKY/WEATHER.........MOSTLY SUNNY (20-30 PERCENT).
CWR.................0 PERCENT.
MAX TEMPERATURE.....AROUND 81.
MIN HUMIDITY........22 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING SOUTH 5 TO 8 MPH WITH
GUSTS TO AROUND 18 MPH IN THE LATE MORNING AND
AFTERNOON.
MIXING HEIGHT.......3800 FT AGL.
TRANSPORT WINDS.....SOUTH 7 TO 13 MPH INCREASING TO 17 TO 21 MPH IN
THE LATE MORNING AND AFTERNOON.
DISPERSION INDEX....8 INCREASING TO 76 LATE IN THE MORNING, THEN
INCREASING TO 89 IN THE AFTERNOON DECREASING TO
75 LATE IN THE AFTERNOON.
LVORI...............3.
TIME (CDT) 7 AM 9 AM 11 AM 1 PM 3 PM 5 PM
SKY (%).........22 31 41 27 28 11
WEATHER COV.....
WEATHER TYPE....NONE NONE NONE NONE NONE NONE
TSTM COV........
CWR.............0 0 0 0 0 0
TEMP............51 60 71 77 80 81
RH..............69 54 34 26 23 24
20 FT WIND......SE 2 S 5 S 7 S 8 S 8 S 7
20 FT WIND GUST.8 12 16 18 18 16
20 FT WIND DIR..140 170 180 180 180 190
MIX HGT (FT)....100 1100 2900 3600 3800 3100
TRANSPORT WIND..SE 7 S 13 S 21 S 20 S 20 S 20
DISPERSION IDX..3 6 76 86 89 75
LVORI...........4 4 1 1 1 1
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR (10-20 PERCENT).
CWR.................0 PERCENT.
MIN TEMPERATURE.....AROUND 55.
MAX HUMIDITY........86 PERCENT.
WIND (20 FT)........SOUTH WINDS 5 TO 7 MPH.
MIXING HEIGHT.......200 FT AGL.
TRANSPORT WINDS.....SOUTH 9 TO 13 MPH.
DISPERSION INDEX....7.
LVORI...............3.
TIME (CDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM
SKY (%).........8 7 5 10 9 15
WEATHER COV.....
WEATHER TYPE....NONE NONE NONE NONE NONE NONE
TSTM COV........
CWR.............0 0 0 0 0 0
TEMP............79 69 65 63 61 57
RH..............27 49 58 62 72 83
20 FT WIND......S 7 S 7 S 6 S 6 S 6 S 5
20 FT WIND GUST.14 11 10 10 10 10
20 FT WIND DIR..190 190 180 200 200 200
MIX HGT (FT)....600 200 200 200 200 200
TRANSPORT WIND..S 13 S 13 S 12 SW 10 SW 10 SW 10
DISPERSION IDX..11 3 2 5 5 5
LVORI...........1 2 3 3 3 4
SATURDAY
SKY/WEATHER.........MOSTLY SUNNY (40-50 PERCENT).
CWR.................0 PERCENT.
MAX TEMPERATURE.....AROUND 83.
MIN HUMIDITY........34 PERCENT.
WIND (20 FT)........SOUTH WINDS 5 TO 7 MPH. GUSTS UP TO 20 MPH
EARLY IN THE AFTERNOON.
MIXING HEIGHT.......4200 FT AGL.
TRANSPORT WINDS.....SOUTH 9 TO 18 MPH INCREASING TO 14 TO 20 MPH
LATE IN THE MORNING.
DISPERSION INDEX....9 INCREASING TO 59 LATE IN THE MORNING, THEN
INCREASING TO 72 EARLY IN THE AFTERNOON
INCREASING TO 81 LATE IN THE AFTERNOON
DECREASING TO 49.
LVORI...............3.
TIME (CDT) 6 AM 8 AM 10 AM NOON 2 PM 4 PM
SKY (%).........35 49 42 49 52 53
WEATHER COV.....
WEATHER TYPE....NONE NONE NONE NONE NONE NONE
TSTM COV........
CWR.............0 0 0 0 0 0
TEMP............57 60 71 77 81 83
RH..............86 84 59 44 37 34
20 FT WIND......S 5 S 5 S 6 S 7 S 7 S 7
20 FT WIND GUST.10 11 14 16 16 14
20 FT WIND DIR..190 190 190 200 200 200
MIX HGT (FT)....100 700 1900 2800 3600 4200
TRANSPORT WIND..S 9 S 12 S 18 S 20 S 18 S 16
DISPERSION IDX..6 8 12 69 80 80
LVORI...........4 4 1 1 1 1
FORECASTER...HOLMES
REQUESTED BY...ROBERT VICK
TYPE OF REQUEST...PRESCRIBED
.TAG 2510984.0/BMX
.DELDT 04/18/25
.FORMATTERVERSION 2.0.0
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