931
FNUS73 KLSX 250946
FWSLSX
SPOT FORECAST FOR LONG RIDGE BLUE TRAIL...MISSOURI DEPARTMENT OF CONSERVATION
NATIONAL WEATHER SERVICE SAINT LOUIS MO
446 AM CDT WED MAR 25 2026
FORECAST IS BASED ON IGNITION TIME OF 1000 CDT ON MARCH 25.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE
NATIONAL WEATHER SERVICE.
DISCUSSION
WELL ABOVE AVERAGE TEMPERATURES AND DRY CONDITIONS ARE EXPECTED
TODAY WITH SOME CLOUDS AND LIGHT SOUTHWESTERLY WINDS. FROM
IGNITION TIME INTO THE AFTERNOON, RH WILL GENERALLY BE BETWEEN
30 AND 45 PERCENT. MIXING HEIGHTS WILL ALSO BE RISING FROM AROUND
1250 FT AGL AT IGNITION TO BETWEEN 3000 AND 5000 FT AGL THIS
AFTERNOON, QUICKLY IMPROVING SMOKE DISPERSAL TO GOOD DESPITE THE
LIGHT WIND. A TEMPERATURE INVERSION WILL DEVELOP AROUND SUNSET,
OR 6 TO 7 PM THIS EVENING, ABRUPTLY DEGRADING SMOKE DISPERSAL.
REST OF TODAY
SKY/WEATHER.........MOSTLY SUNNY (30-40 PERCENT).
CWR.................1 PERCENT.
CHANCE OF THUNDER...3 PERCENT.
TEMPERATURE.........60 AT IGNITION...MAX 81.
RH..................47 PERCENT AT IGNITION...MIN 36 PERCENT.
EYE LEVEL WINDS.....SOUTHWEST WINDS 2 MPH. AN ADJUSTMENT FACTOR OF
0.3 IS USED.
WIND (20 FT)........SOUTHWEST WINDS 5 TO 7 MPH.
MIXING HEIGHT.......1300 FT AGL AT IGNITION...OTHERWISE MAX 4700 FT
AGL.
TRANSPORT WINDS.....SOUTHWEST 14 TO 20 MPH.
SMOKE DISPERSAL.....POOR /2620 M/S-M/ AT IGNITION. MAX...GOOD
/12400 M/S-M/.
TIME (CDT) 10 AM NOON 2 PM 4 PM 6 PM 8 PM
SKY (%).........25 27 35 40 37 25
WEATHER COV.....
WEATHER TYPE....NONE NONE NONE NONE NONE NONE
TSTM COV........
CWR.............0 0 0 0 0 0
CHC OF THDR (%).0 0 0 0 0 0
TEMP............60 71 78 81 80 73
RH..............47 44 36 37 39 51
20 FT WIND......SW 5 SW 6 SW 7 SW 7 S 6 S 5
20 FT WIND GUST.12 14 15 16 16 16
EYE LEVEL WIND..SW 2 SW 3 SW 3 SW 3 S 3 S 2
EYE LVL WND GST.6 6 7 7 7 7
MIX HGT (KFT)...1.3 2.6 4.1 4.7 1.5 0.7
TRANSPORT WIND..SW 15 SW 14 SW 16 SW 18 S 17 S 16
VRATE KT-FT/1K..17 31 57 75 23 9
VENTRATE CAT....POOR POOR FAIR GOOD POOR POOR
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR (15-25 PERCENT).
CWR.................2 PERCENT.
CHANCE OF THUNDER...5 PERCENT.
TEMPERATURE.........MIN 65.
RH..................MAX 73 PERCENT.
EYE LEVEL WINDS.....SOUTHWEST WINDS 2 MPH. GUSTS UP TO 7 MPH LATE
IN THE EVENING. AN ADJUSTMENT FACTOR OF 0.3 IS
USED.
WIND (20 FT)........SOUTHWEST WINDS 5 TO 8 MPH. GUSTS UP TO 23 MPH
LATE IN THE EVENING.
MIXING HEIGHT.......MIN 700 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 15 TO 21 MPH.
SMOKE DISPERSAL.....POOR (1400 M/S-M).
THURSDAY
SKY/WEATHER.........SUNNY (15-25 PERCENT).
CWR.................2 PERCENT.
CHANCE OF THUNDER...7 PERCENT.
TEMPERATURE.........MAX 92.
RH..................MIN 34 PERCENT.
EYE LEVEL WINDS.....SOUTHWEST WINDS 2 TO 3 MPH WITH GUSTS TO
AROUND 7 MPH. AN ADJUSTMENT FACTOR OF 0.3 IS
USED.
WIND (20 FT)........SOUTHWEST WINDS 8 TO 11 MPH WITH GUSTS TO
AROUND 23 MPH.
MIXING HEIGHT.......MAX 5000 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 20 TO 29 MPH INCREASING TO 28 TO 31
MPH LATE IN THE AFTERNOON.
SMOKE DISPERSAL.....POOR (2230 M/S-M) EARLY IN THE MORNING
INCREASING TO EXCELLENT MAX (16390 M/S-M) IN
THE AFTERNOON INCREASING TO GOOD (14190 M/S-M)
EARLY IN THE MORNING INCREASING TO EXCELLENT
MAX (21150 M/S-M) IN THE AFTERNOON LATE IN THE
AFTERNOON.
FORECASTER...PFAHLER
REQUESTED BY...RYAN FARRAR
TYPE OF REQUEST...PRESCRIBED
.TAG 2607677.0/LSX
.DELDT 03/25/26
.FORMATTERVERSION 2.0.0
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