431
FNUS73 KLSX 261240
FWSLSX

Spot Forecast for Schwede Rd Entrance Prairie...St. Charles County Parks and Recreation
National Weather Service Saint Louis MO
740 AM CDT Thu Sep 26 2024

Forecast is based on ignition time of 1100 CDT on September 26.
If conditions become unrepresentative, contact the
National Weather Service.

.DISCUSSION...
Winds out of the north/northeast will pick up to around 10 mph
this afternoon after beginning light/variable. Minimum afternoon
humidity values are expected to drop to near 45-50 percent.
Widespread light rain is expected to move in by Friday morning.

.REST OF TODAY...

Sky/weather.........Mostly sunny (25-35 percent).
Chance of pcpn......0 percent.
LAL.................No Tstms.
Temperature.........73 at ignition...Max 78.
RH..................59 percent at ignition...Min 47 percent.
Wind (20 ft)........Winds northeast at 6 mph at
                    ignition...otherwise Northeast winds 6 to 8
                    mph.
Eye level winds.....Winds northeast around 2-3 mph at ignition,
                    increasing to 3-4 mph by afternoon.
Haines Index........3 or very low potential for large plume
                    dominated fire growth at ignition...max 4.
Mixing height.......2400 ft AGL at ignition...otherwise max 5600 ft
                    AGL.
Transport winds.....Northeast 10 to 15 mph.
Smoke dispersal.....Poor /3460 m/s-m/ at ignition. Max...good
                    /10590 m/s-m/.

TIME (CDT)      11 AM  1 PM   3 PM   5 PM   7 PM   9 PM
Sky (%).........19     32     36     36     38     48
Weather cov.....
Weather type....NONE   NONE   NONE   NONE   NONE   NONE
Tstm cov........
CWR.............0      0      0      0      0      10
LAL.............1      1      1      1      1      1
Temp............73     76     77     76     71     65
RH..............59     52     48     50     59     73
20 ft wind......NE 6   N 7    N 8    NE 7   N 4    N 5
20 ft wind gust.10     13     15     13     9      9
Eye level wind..NE 3   N 3    N 4    NE 3   N 2    N 2
Eye lvl wnd gst.5      6      7      6      4      4
Mix hgt (kft)...2.4    5.4    5.1    3.6    0.7    0.5
Transport wind..NE 10  NE 14  NE 15  N 13   N 10   N 10
Haines index....3      4      4      4      4      3
Vrate kt-ft/1K..22     64     66     40     6      4
Ventrate Cat....POOR   GOOD   GOOD   POOR   POOR   POOR

$$
Forecaster...Gosselin
Requested by...Chuck Collins
Type of request...PRESCRIBED
.TAG 2423076.0/LSX
.DELDT 09/26/24
.FormatterVersion 2.0.0