Suppression Forecast
Issued by NWS Cheyenne, WY

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000
FNUS75 KCYS 201426
FWSCYS

SPOT FORECAST FOR MONTGOMERY PASTURE RX...BLM RAD
NATIONAL WEATHER SERVICE CHEYENNE WY
826 AM MDT SAT SEP 20 2014

FORECAST IS BASED ON IGNITION TIME OF 0825 MDT ON SEPTEMBER 20.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
COOL FRONTAL BOUNDARY SLIPPED THROUGH THE BURN SITE LAST NIGHT AS
INDICATED BY THE 10 DEGREE COOLER LOW TEMPERATURE THIS MORNING.
GENERALLY A WINDLESS START TO THE DAY...WITH LESS THAN 5 MPH
OBSERVED ON MICRO 3. WINDS WILL TURN NORTHEASTERLY AND INCREASE
SOMEWHAT BY AROUND MIDDAY AND CONTINUE THRU THE AFTERNOON. DONT
SEE ANY REASON TO SEE MUCH IN THE WAY OF CLOUD-COVER TODAY. AS
SUCH SHOULD SEE TEMPS WARM SOME...ALTHOUGH FALL SHORT OF
YESTERDAYS HIGH IN THE COOLER POST FRONTAL AIR MASS. COOLER
TEMPERATURES TODAY SHOULD YIELD MINIMUM RELATIVE HUMIDITIES THAT
WILL BE A FEW PERCENT HIGHER COMPARED TO YESTERDAY. CLEAR SKIES
EXPECTED OVERNIGHT...WITH CLOUDS LIKELY INCREASING SUNDAY MORNING.
THE NEXT BATCH OF MOISTURE ASSOCIATED WITH A STORM SYSTEM WILL
ARRIVE AFTER 2 PM SUNDAY AND WILL CONTINUE THRU MONDAY EVENING.
CONDITIONS DO LOOK TO TURN DRIER AND WARMER ONCE AGAIN TOWARDS THE
MIDDLE OF NEXT WEEK.

.TODAY...

SKY/WEATHER.........SUNNY (0-10 PERCENT).
MAX TEMPERATURE.....69 TO 72 DEGREES.
MIN HUMIDITY........26 TO 31 PERCENT.
WIND (20 FT)........LIGHT AND VARIABLE UNTIL 1200...THEN BECOMING
                    NORTHEAST AT 5 TO 10 MPH..
CWR.................0 PERCENT.
LAL.................1.
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......5500-6500 FT AGL.
TRANSPORT WINDS.....NORTHEAST AROUND 10 MPH.
SMOKE DISPERSAL.....FAIR BECOMING EXCELLENT (25600-106800 KNOT-FT).

.TONIGHT...

SKY/WEATHER.........CLEAR (0-10 PERCENT) UNTIL 0500...THEN BECOMING
                    MOSTLY CLEAR (10-20 PERCENT).
MIN TEMPERATURE.....47 TO 50 DEGREES.
MAX HUMIDITY........75-80 PERCENT.
WIND (20 FT)........NORTHEAST WINDS 5 TO 10 MPH...WITH GUSTS TO 15 MPH
                    UNTIL 0300...THEN BECOMING LIGHT AND VARIABLE.
CWR.................0 PERCENT.
LAL.................1.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......3300 FT AGL DECREASING TO 300 FT AGL AFTER
                    MIDNIGHT.
TRANSPORT WINDS.....NORTHEAST AROUND 15 MPH.
SMOKE DISPERSAL.....GOOD BECOMING POOR (3100-52200 KNOT-FT).

.SUNDAY...

SKY/WEATHER.........MOSTLY SUNNY (20-30 PERCENT) UNTIL 0900...THEN
                    BECOMING MOSTLY CLOUDY (55-65 PERCENT). SCATTERED
                    SHOWERS AND THUNDERSTORMS AFTER 1400.
MAX TEMPERATURE.....67 TO 70 DEGREES.
MIN HUMIDITY........32-38 PERCENT.
WIND (20 FT)........LIGHT AND VARIABLE UNTIL 1000...THEN BECOMING
                    SOUTHWEST 8 TO 12 MPH WITH GUSTS TO 20 MPH AFTER
                    NOON.
CWR.................40 PERCENT AFTER 1400.
LAL.................3.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......3600 FT AGL INCREASING TO 6900 FT AGL IN THE
                    AFTERNOON.
TRANSPORT WINDS.....BECOMING SOUTHWEST AT 10 TO 15 MPH AFTER NOON.
SMOKE DISPERSAL.....FAIR BECOMING EXCELLENT (17200-157200 KNOT-FT).

$$

FORECASTER...HAHN
REQUESTED BY...ZACH HARTSHORN
TYPE OF REQUEST...PRESCRIBED
.TAG 20140920.MONTG.01/CYS






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