Suppression Forecast
Issued by NWS Billings, MT

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000
FNUS75 KBYZ 291441
FWSBYZ

SPOT FORECAST FOR PORCUPINE ASPEN...USFS
NATIONAL WEATHER SERVICE BILLINGS MT
841 AM MDT THU SEP 29 2016

FORECAST IS BASED ON IGNITION TIME OF 0830 MDT ON SEPTEMBER 29.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
EXPECT A FEW SPRINKLES OVER THE BURN SITE THIS MORNING. A SLIGHT CHANCE OF
A SHOWER OR THUNDERSHOWER LATER TODAY INTO THE EVENING. LIGHT TERRAIN DRIVEN WIND
WILL PREVAIL THIS MORNING...BUT BY IGNITION TIME IS EXPECTED TO BE SOUTHERLY. TERRAIN
DRIVEN WINDS ARE EXPECTED OVERNIGHT WITH A SLIGHT CHANCE OF SPRINKLES OR A SHOWER.
CONDITIONS FOR FRIDAY ARE NOT EXPECTED TO CHANGE MUCH FROM TODAYS. BT

.TODAY...

SKY/WEATHER.........PARTLY SUNNY. ISOLATED RAIN SHOWERS IN THE
                    MORNING...THEN SCATTERED RAIN SHOWERS AND
                    ISOLATED THUNDERSTORMS IN THE AFTERNOON.
CWR.................10 PERCENT.
LAL.................2...1 TO 8 STRIKES/15 MIN/CELL.
MAX TEMPERATURE.....70-76.
MIN HUMIDITY........25-33 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......SOUTH WINDS 5 TO 10 MPH. GUSTY AND ERRATIC
                    WINDS EXPECTED NEAR SHOWERS IN THE AFTERNOON.
 RIDGETOP...........SOUTHWEST 15 TO 25 MPH.
MIXING HEIGHT.......700 FT AGL IN THE MORNING INCREASING TO 7200 FT
                    AGL IN THE AFTERNOON.
MIXING WINDS........SOUTH 10 TO 20 MPH.
HAINES INDEX........3.

.TONIGHT...

SKY/WEATHER.........MOSTLY CLOUDY. ISOLATED SHOWERS AND
                    THUNDERSTORMS IN THE EVENING...THEN ISOLATED
                    RAIN SHOWERS OVERNIGHT.
CWR.................12 PERCENT.
LAL.................2...1 TO 8 STRIKES/15 MIN/CELL.
MIN TEMPERATURE.....38-45.
MAX HUMIDITY........81-86 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......TERRAIN DRIVEN. GUSTY AND ERRATIC
                    WINDS EXPECTED NEAR SHOWERS IN THE EVENING.
 RIDGETOP...........SOUTHWEST 10 TO 20 MPH.
MIXING HEIGHT.......7200 FT AGL IN THE EVENING DECREASING TO 1000
                    FT AGL OVERNIGHT.
MIXING WINDS........SOUTH 10 TO 20 MPH.

.FRIDAY...

SKY/WEATHER.........MOSTLY SUNNY. ISOLATED RAIN SHOWERS IN THE
                    MORNING...THEN SCATTERED RAIN SHOWERS AND
                    ISOLATED THUNDERSTORMS IN THE AFTERNOON.
CWR.................14 PERCENT.
LAL.................2...1 TO 8 STRIKES/15 MIN/CELL.
MAX TEMPERATURE.....69-74.
MIN HUMIDITY........27-34 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......SOUTHWEST WINDS 5 TO 10 MPH. GUSTY AND ERRATIC
                    WINDS EXPECTED NEAR THUNDERSTORMS IN THE
                    AFTERNOON.
 RIDGETOP...........SOUTHWEST 5 TO 15 MPH.
MIXING HEIGHT.......1000 FT AGL IN THE MORNING INCREASING TO 8000
                    FT AGL IN THE AFTERNOON.
MIXING WINDS........SOUTHWEST 5 TO 15 MPH.
HAINES INDEX........3.

$$
FORECASTER...TESAR
REQUESTED BY...RYAN WHITE
TYPE OF REQUEST...PRESCRIBED
.TAG 20160929.PORCU.02/BYZ


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