FNUS75 KBYZ 031539
FWSBYZ

SPOT FORECAST FOR KELTY...NORTHERN CHEYENNE AGENCY
NATIONAL WEATHER SERVICE BILLINGS MT
939 AM MDT MON SEP 3 2012

FORECAST IS BASED ON REQUEST TIME OF 0914 MDT ON SEPTEMBER 03.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

...RED FLAG WARNING IN EFFECT FROM 9 AM TO 9 PM MDT TUESDAY...

.DISCUSSION...
A WEAK COOL FRONT MOVED THROUGH THE FIRE SITE EARLY THIS
MORNING. GENERALLY LIGHT WEST TO NORTHWEST WINDS WILL PREVAIL OVER
THE FIRE TODAY. HOWEVER...RELATIVE HUMIDITY LEVELS WILL FALL INTO
THE LOWER TEENS. THE NEXT COLD FRONT IS EXPECTED TO MOVE THROUGH
THE FIRE SITE TUESDAY MORNING AROUND 10 AM. THIS WILL TURN WINDS
FIRMLY TO THE NORTHWEST AT 10 TO 20 MPH WITH GUSTS TO 30 MPH
POSSIBLE. THE FRONT WILL BE DRY AGAIN...BUT COOLER TEMPERATURES
TUESDAY WILL RESULT IN HUMIDITY A LITTLE HIGHER THAN TODAY. ANOTHER
WEATHER SYSTEM IS EXPECTED AROUND THURSDAY MORNING...BUT THE TIMING
AND STRENGTH ARE VERY MUCH IN QUESTION AT THIS TIME. BT


.REST OF TODAY...

SKY/WEATHER.........SUNNY.
CWR.................0 PERCENT.
LAL.................1...NO THUNDERSTORMS.
MAX TEMPERATURE.....81-86.
MIN HUMIDITY........8-13 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......NORTHWEST WINDS 5 TO 10 MPH.
 RIDGETOP...........WES TO NORTHWEST 5 TO 15 MPH.
MIXING HEIGHT.......6600 FT AGL.
MIXING WINDS........NORTHWEST 10 TO 20 MPH.
HAINES INDEX........5.

.TONIGHT...

SKY/WEATHER.........MOSTLY CLEAR.
CWR.................0 PERCENT.
LAL.................1...NO THUNDERSTORMS.
MIN TEMPERATURE.....53-58.
MAX HUMIDITY........34-43 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......WEST WINDS 5 TO 10 MPH IN THE EVENING SHIFTING
                    TO THE SOUTH OVERNIGHT.
 RIDGETOP...........SOUTHWEST 5 TO 15 MPH.
MIXING HEIGHT.......8700 FT AGL.
MIXING WINDS........WEST 5 TO 10 MPH.
HAINES INDEX........4.

.TUESDAY...

SKY/WEATHER.........SUNNY.
CWR.................0 PERCENT.
LAL.................1...NO THUNDERSTORMS.
MAX TEMPERATURE.....72-77.
MIN HUMIDITY........16-22 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......NORTHWEST WINDS 10 TO 20 MPH.
 RIDGETOP...........NORTHWEST 15 TO 30 MPH.
MIXING HEIGHT.......4300 FT AGL.
MIXING WINDS........NORTHWEST 15 TO 25 MPH.
HAINES INDEX........5.

$$
FORECASTER...TESAR
REQUESTED BY...MERLIN SIOUX
TYPE OF REQUEST...WILDFIRE
.TAG 20120903.KELTY.01/BYZ