265
FNUS73 KLSX 311200
FWSLSX
SPOT FORECAST FOR PENALTY BOX UNIT...ST. LOUIS COUNTY PARKS FORESTRY
NATIONAL WEATHER SERVICE SAINT LOUIS MO
700 AM CDT MON MAR 31 2025
FORECAST IS BASED ON IGNITION TIME OF 1100 CDT ON MARCH 31.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE
NATIONAL WEATHER SERVICE.
DISCUSSION
RADAR ESTIMATES SUGGEST THE BURN AREA MAY HAVE SEEN 0.10 TO
0.20 INCHES OF RAINFALL YESTERDAY. OVERCAST SKIES WILL PREVAIL
THROUGH LATE MORNING WITH CLOUDS BREAKING UP AND DECREASING IN
THE AFTERNOON. RELATIVE HUMIDITY WILL BE RATHER HIGH ONLY
FALLING TO 45 PERCENT LATER IN THE AFTERNOON.
REST OF TODAY
SKY/WEATHER.........MOSTLY CLOUDY (75-85 PERCENT) THEN BECOMING
MOSTLY SUNNY (35-45 PERCENT).
TEMPERATURE.........43 AT IGNITION...MAX 55.
RH..................63 PERCENT AT IGNITION...MIN 45 PERCENT.
WIND (20 FT)........WINDS NORTHWEST AT 9 TO 10 MPH.
EYE LEVEL WINDS.....WINDS NORTHWEST AROUND 4 MPH USING A 0.4
ADJUSTMENT FACTOR.
MIXING HEIGHT.......3100 FT AGL AT IGNITION...OTHERWISE MAX 4400 FT
AGL.
TRANSPORT WINDS.....NORTH 14 TO 17 MPH.
SMOKE DISPERSAL.....FAIR /6870 M/S-M/ AT IGNITION. MAX...GOOD /8960
M/S-M/.
TIME (CDT) 11 AM 1 PM 3 PM 5 PM 7 PM 9 PM
SKY (%).........98 86 57 34 18 13
WEATHER COV.....
WEATHER TYPE....NONE NONE NONE NONE NONE NONE
TSTM COV........
TEMP............43 48 54 55 53 47
RH..............63 54 47 45 48 58
20 FT WIND......NW 10 NW 10 NW 9 NW 8 N 5 N 3
20 FT WIND GUST.16 15 13 11 9 7
EYE LEVEL WIND..NW 5 NW 5 NW 4 NW 4 N 2 N 1
EYE LVL WND GST.7 7 6 5 4 3
MIX HGT (KFT)...3.1 3.4 4.2 4.4 0.9 0.5
TRANSPORT WIND..N 16 N 15 N 15 N 14 N 8 N 6
VRATE KT-FT/1K..44 44 55 53 6 3
VENTRATE CAT....FAIR FAIR FAIR FAIR POOR POOR
FORECASTER...GLASS
REQUESTED BY...JASON PRATTE
TYPE OF REQUEST...PRESCRIBED
.TAG 2508452.0/LSX
.DELDT 03/31/25
.FORMATTERVERSION 2.0.0
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page