794
FNUS73 KLSX 271539
FWSLSX
SPOT FORECAST FOR PINEY CREEK RAVINE RX...IDNR
NATIONAL WEATHER SERVICE SAINT LOUIS MO
939 AM CST FRI FEB 27 2026
FORECAST IS BASED ON IGNITION TIME OF 1000 CST ON FEBRUARY 27.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE
NATIONAL WEATHER SERVICE.
DISCUSSION
GUSTY SOUTHEAST WINDS, VERY LOW HUMIDITY, AND WELL ABOVE AVERAGE
TEMPERATURES ARE EXPECTED THROUGHOUT TODAY. DEEP MIXING
WILL ALSO COMBINE WITH THESE GUSTY SOUTHWEST WINDS TO SUPPORT
VERY GOOD SMOKE DISPERSION. WINDS WILL WEAKEN QUICKLY NEAR
SUNSET, AND A WEAK COLD FRONT WILL MOVE INTO THE AREA LATE THIS
EVENING WITH WINDS TURNING TOWARD THE NORTHWEST BETWEEN 9PM AND
MIDNIGHT. OVERNIGHT, HUMIDITY RECOVERIES ARE EXPECTED WITH WINDS
ALSO BECOMING LIGHT AND VARIABLE.
TOMORROW, MAINLY LIGHT AND EAST TO SOUTHEAST WINDS CAN BE
EXPECTED, ALTHOUGH THERE WILL BE SOME VARIABILITY IN THE WIND
DIRECTION. INCREASING CLOUD COVER IS ALSO EXPECTED, AND THERE IS A
LOW CHANCE FOR VERY LIGHT SHOWERS OR SPRINKLES. HOWEVER,
CONSIDERING THAT RELATIVELY DRY LOW LEVEL AIR WILL REMAIN IN
PLACE, A WETTING RAIN IS NOT EXPECTED. A MORE SUBSTANTIAL COLD
FRONT WILL SWEEP THROUGH THE AREA NEAR SUNSET TOMORROW, SWITCHING
WINDS TO THE NORTHEAST.
REST OF TODAY
SKY/WEATHER.........SUNNY (0-5 PERCENT).
CWR.................0 PERCENT.
TEMPERATURE.........56 AT IGNITION...MAX 70.
RH..................62 PERCENT AT IGNITION...MIN 31 PERCENT.
EYE LEVEL WINDS.....WINDS SOUTHWEST AT 3 MPH AT
IGNITION...OTHERWISE SOUTHWEST WINDS UP TO 5
MPH. ADJUSTMENT FACTOR OF 0.3 USED.
WIND (20 FT)........WINDS SOUTHWEST AT 9 MPH AT
IGNITION...OTHERWISE SOUTHWEST WINDS 8 TO 11
MPH.
MIXING HEIGHT.......1500 FT AGL AT IGNITION...OTHERWISE MAX 6000 FT
AGL.
TRANSPORT WINDS.....SOUTHWEST 14 TO 18 MPH.
SMOKE DISPERSAL.....POOR /2770 M/S-M/ AT IGNITION. MAX...GOOD
/14170 M/S-M/.
TIME (CST) 10 AM NOON 2 PM 4 PM 6 PM 8 PM
SKY (%).........3 1 1 1 3 3
WEATHER COV.....
WEATHER TYPE....NONE NONE NONE NONE NONE NONE
TSTM COV........
CWR.............0 0 0 0 0 0
TEMP............56 65 69 69 61 57
RH..............62 43 33 33 44 55
20 FT WIND......SW 9 SW 10 SW 11 SW 10 S 8 S 9
20 FT WIND GUST.16 15 15 17 13 16
EYE LEVEL WIND..SW 4 SW 5 SW 5 SW 5 S 4 S 4
EYE LVL WND GST.7 7 7 8 6 7
MIX HGT (KFT)...1.5 3.7 5.3 4.1 0.4 0.4
TRANSPORT WIND..SW 14 SW 17 W 17 SW 18 S 14 S 16
VRATE KT-FT/1K..18 56 79 66 4 6
VENTRATE CAT....POOR FAIR GOOD GOOD POOR POOR
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR (0-10 PERCENT).
CWR.................0 PERCENT.
TEMPERATURE.........MIN 42.
RH..................MAX 82 PERCENT.
EYE LEVEL WINDS.....SOUTHWEST WINDS 5 MPH SHIFTING TO THE WEST
LESS THAN 5 MPH OVERNIGHT, THEN SHIFTING TO THE
NORTHEAST LIGHT EARLY IN THE MORNING. ADJUSTMENT
FACTOR OF 0.3 USED.
WIND (20 FT)........SOUTHWEST WINDS 7 TO 9 MPH SHIFTING TO THE WEST
5 TO 6 MPH OVERNIGHT, THEN SHIFTING TO THE
NORTHEAST AROUND 5 MPH EARLY IN THE MORNING.
MIXING HEIGHT.......MIN 400 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 14 TO 16 MPH SHIFTING TO THE
NORTHWEST 12 TO 13 MPH OVERNIGHT, THEN SHIFTING
TO THE NORTH OVERNIGHT.
SMOKE DISPERSAL.....POOR (610 M/S-M).
SATURDAY
SKY/WEATHER.........SUNNY (20-30 PERCENT).
CWR.................2 PERCENT.
TEMPERATURE.........MAX 68.
RH..................MIN 42 PERCENT.
EYE LEVEL WINDS.....SOUTH WINDS LIGHT SHIFTING TO THE EAST
LESS THAN 5 MPH EARLY IN THE MORNING, THEN
SHIFTING TO THE SOUTH LESS THAN 5 MPH IN THE
AFTERNOON. ADJUSTMENT FACTOR OF 0.3 USED.
WIND (20 FT)........SOUTH WINDS 5 TO 7 MPH SHIFTING TO THE EAST
AROUND 5 MPH EARLY IN THE MORNING, THEN
SHIFTING TO THE SOUTH 6 TO 7 MPH IN THE
AFTERNOON.
MIXING HEIGHT.......MAX 2700 FT AGL.
TRANSPORT WINDS.....EAST 12 TO 14 MPH SHIFTING TO THE SOUTHWEST 12
TO 13 MPH LATE IN THE AFTERNOON.
SMOKE DISPERSAL.....POOR (830 M/S-M) EARLY IN THE MORNING
INCREASING TO MARGINAL MAX (4590 M/S-M) IN THE
AFTERNOON.
FORECASTER...ELMORE
REQUESTED BY...BLAKE BAUM
TYPE OF REQUEST...PRESCRIBED
.TAG 2604234.0/LSX
.DELDT 02/27/26
.FORMATTERVERSION 2.0.0
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