Suppression Forecast
Issued by NWS Cheyenne, WY

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000
FNUS75 KCYS 151235
FWSCYS

SPOT FORECAST FOR RIVER RX...NPS
NATIONAL WEATHER SERVICE CHEYENNE WY
635 AM MDT MON SEP 15 2014

FORECAST IS BASED ON IGNITION TIME OF 1000 MDT ON SEPTEMBER 15.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...

HIGH PRESSURE OVER SOUTHWESTERN SOUTH DAKOTA WILL CONTINUE MOVING
SOUTHEAST THROUGH THE DAY. LIGHT WEST TO NORTHWEST WINDS INITIALLY
THIS MORNING WILL BECOME SOUTHEAST BY MID MORNING UNDER SUNNY SKIES.
AFTERNOON HUMIDITIES MAY NOT BE TOO CONDUCIVE TO FIRE SPREAD WITH
AFTERNOON VALUES NEAR 30 PERCENT.

.TODAY...

SKY/WEATHER.........CLOUDY (80-90 PERCENT) THEN BECOMING MOSTLY
                    SUNNY (10-20 PERCENT). PATCHY FOG IN THE
                    MORNING.
MAX TEMPERATURE.....AROUND 68.
MIN HUMIDITY........32 PERCENT.
WIND (20 FT)........SOUTHWEST AT 2 TO 5 MPH BECOMING SOUTHEAST
                    5 TO 10 MPH AFTER 9 AM. SOUTHEAST 10 TO 12 WITH
                    GUSTS TO 18 MPH AFTER 2 PM
CWR.................0 PERCENT.
LAL.................1.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......2600-3600 FT AGL.
TRANSPORT WINDS.....SOUTH AROUND 10 MPH.
SMOKE DISPERSAL.....POOR TO GOOD (9700-45900 KNOT-FT).

.TONIGHT...

SKY/WEATHER.........MOSTLY CLEAR (5-15 PERCENT).
MIN TEMPERATURE.....AROUND 44.
MAX HUMIDITY........100 PERCENT.
WIND (20 FT)........SOUTHEAST 10 TO 12 MPH WITH GUSTS TO 18 MPH
                    BECOMING SOUTHWEST WINDS 6 TO 8 MPH AFTER 7 PM.
CWR.................0 PERCENT.
LAL.................1.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......300-1400 FT AGL.
TRANSPORT WINDS.....SOUTH AROUND 15 MPH.
SMOKE DISPERSAL.....FAIR TO POOR (21300-2100 KNOT-FT).

.TUESDAY...

SKY/WEATHER.........MOSTLY SUNNY (10-20 PERCENT).
MAX TEMPERATURE.....AROUND 85.
MIN HUMIDITY........22 PERCENT.
WIND (20 FT)........NORTH WINDS 6 TO 7 MPH. GUSTS UP TO 15 MPH.
CWR.................0 PERCENT.
LAL.................1.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......6400 FT AGL INCREASING TO 11300 FT AGL IN THE
                    AFTERNOON.
TRANSPORT WINDS.....NORTHWEST AROUND 10 MPH.
SMOKE DISPERSAL.....GOOD TO EXCELLENT (49400-98900 KNOT-FT).

$$
FORECASTER...CLAYCOMB
REQUESTED BY...DAN SWANSON
TYPE OF REQUEST...PRESCRIBED
.TAG 20140915.RIVER.03/CYS





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