Suppression Forecast
Issued by NWS St. Louis, MO

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569
FNUS73 KLSX 261224
FWSLSX

Spot Forecast for Johnson Mountain RX Burn...USDA Forest Service
National Weather Service Saint Louis MO
624 AM CST Sun Feb 26 2017

Forecast is based on ignition time of 0700 CST on February 26.
If conditions become unrepresentative, contact the
National Weather Service.

.DISCUSSION...
An upper level disturbance will track across the region bringing
scattered showers to portions of southern Missouri and southern
Illinois this afternoon and evening.


.REST OF TODAY...

Sky/weather.........Increasing cloudiness this morning (65-75 percent) then
                    cloudy this afternoon (95-100 percent). Slight chance of
                    rain showers early in the afternoon. Chance of
                    rain showers during mid and late afternoon.
Chance of pcpn......40 percent.
LAL.................No Tstms.
Temperature.........34 at ignition...Max 47.
RH..................53 percent at ignition...Min 31 percent.
Wind (20 ft)........Winds south at 6 mph at ignition...otherwise
                    South winds 6 to 10 mph.
Eye level winds.....South 2 to 3 mph using a 0.3 adjustment factor.
Haines Index........4 or low potential for large plume dominated
                    fire growth.
Mixing height.......1000ft at ignition, 4200 ft AGL at max heating.
Transport winds.....South around 26 mph.
Smoke dispersal.....Good (15260 m/s-m) at max heating.

TIME (CST)      7 AM   9 AM   11 AM  1 PM   3 PM   5 PM
Sky (%).........60     81     86     86     100    98
Weather cov.....                     S CHC  CHANCE CHANCE
Weather type....NONE   NONE   NONE   RNSHWR RNSHWR RNSHWR
Tstm cov........
CWR.............0      10     10     20     30     40
LAL.............1      1      1      1      1      1
Temp............29     35     43     47     47     45
RH..............51     47     36     34     45     49
20 ft wind......S 7    S 10   S 10   S 10   S 9    S 6
20 ft wind gust.15     15     20     20     20     15

.TONIGHT...

Sky/weather.........Cloudy (85-95 percent). Chance of rain showers
                    until early morning, then slight chance of rain
                    showers early in the morning.
Chance of pcpn......40 percent.
LAL.................No Tstms.
Temperature.........Min 38.
RH..................Max 97 percent.
Wind (20 ft)........South winds around 5 mph early in the evening
                    becoming light, then becoming south 5 to 6 mph
                    in the late evening and overnight becoming
                    light.
Eye level winds.....South wind 2 to 3 mph.
Haines Index........N/A.
Mixing height.......N/A.
Transport winds.....N/A.
Smoke dispersal.....N/A.

.MONDAY...

Sky/weather.........Mostly cloudy (70-80 percent). Slight chance of
                    rain showers in the afternoon.
Chance of pcpn......20 percent.
LAL.................No Tstms.
Temperature.........Max 57.
RH..................Min 53 percent.
Wind (20 ft)........Light winds becoming southeast 5 to 7 mph in
                    the late morning and afternoon.
Eye level winds.....Light and variable becoming southeast 2 to 3 mph.
Haines Index........3 or very low potential for large plume
                    dominated fire growth.
Mixing height.......2300 ft AGL at max heating.
Transport winds.....South around 16 mph.
Smoke dispersal.....Poor (5110 m/s-m) at max heating.

$$

Forecaster...CVKING
Requested by...Tim Bray
Type of request...PRESCRIBED
.TAG 1702894.1/LSX



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