FNUS75 KRIW 191154
FWSRIW

SPOT FORECAST FOR CATHEDRAL GROUP...IA TDC
NATIONAL WEATHER SERVICE RIVERTON WY
554 AM MDT MON JUL 19 2010

FORECAST IS BASED ON REQUEST TIME OF 1832 MDT ON JULY 18.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...A DRIER WESTERLY FLOW WILL PREVAIL OVER THE AREA TODAY
AS A DISTURBANCE THAT PASSED THROUGH THE AREA EARLY THIS MORNING
SWEEPS CLOUDS AND SHOWERS EAST OF THE AREA.  EXPECT SLIGHTLY COOLER
TEMPERATURES BUT ALSO LOWER RELATIVE HUMIDITY TODAY ALONG WITH WEST
SOUTHWEST BREEZES IN THE AFTERNOON.


...THUNDERSTORMS IMPLY STRONG GUSTY AND ERRATIC WINDS...
...HAINES INDEX IS HIGH LEVEL HAINES BOTH DAY AND NIGHT...

FORECASTER...MEUNIER

.TODAY...
SKY/WEATHER.........MOSTLY SUNNY (10-20 PERCENT)
MAX TEMPERATURE.....AROUND 80.
MIN HUMIDITY........15-18 PERCENT.
WIND (20 FT)........SOUTHEAST TO SOUTH 4 TO 7 MPH IN THE MORNING BECOMING
                    WEST SOUTHWEST 8 TO 12 MPH WITH GUSTS TO 20 MPH
                    BETWEEN NOON AND 1400.
RIDGE TOP WINDS.....SOUTHWEST 5 TO 10 MPH IN THE MORNING BECOMING
                    WEST 20 TO 25 MPH IN THE AFTERNOON.
LAL.................1.
CWR.................ZERO PERCENT.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......NEAR 1000 FT AGL THROUGH 0900...INCREASING TO NEAR
                    10000 FT AGL BETWEEN NOON AND 1400.
TRANSPORT WINDS.....SOUTH SOUTHWEST 5 TO 10 MPH IN THE MORNING BECOMING
                    WEST AROUND 30 MPH IN THE AFTERNOON.
SMOKE DISPERSAL.....POOR (6000-12000 KNOT-FT) THROUGH 0900...INCREASING
                    TO EXCELLENT (260000 KNOT-FT) IN THE AFTERNOON.

.TONIGHT...
SKY/WEATHER.........MOSTLY CLEAR (5-15 PERCENT).
MIN TEMPERATURE.....42-45.
MAX HUMIDITY........78-81 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 8 TO 12 MPH WITH GUST TO 20 MPH THROUGH
                    1900...BECOMING DOWNSLOPE OR NORTH NORTHEAST 4-7 MPH AROUND
                    MIDNIGHT.
RIDGE TOP WINDS.....WEST 15 TO 20 MPH SHIFTING TO THE SOUTHWEST
                    5 TO 10 MPH BETWEEN MIDNIGHT AND 0200.
LAL.................1.
CWR.................ZERO PERCENT.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......7500-8500 FT AGL DECREASING TO NEAR 1000 FT AGL
                    BY 0400.
TRANSPORT WINDS.....SOUTHWEST 17 TO 22 MPH SHIFTING TO THE SOUTH 10
                    TO 12 MPH AFTER MIDNIGHT.
SMOKE DISPERSAL.....VERY GOOD (134000 KNOT-FT) DECREASING TO POOR
                    (35900 KNOT-FT) AFTER MIDNIGHT.

.TUESDAY...
SKY/WEATHER.........MOSTLY SUNNY (15-25 PERCENT).
MAX TEMPERATURE.....AROUND 80.
MIN HUMIDITY........12-15 PERCENT.
WIND (20 FT)........UPSLOPE/UPVALLEY 5-9 MPH.
RIDGE TOP WINDS.....SOUTH AROUND 10 MPH SHIFTING TO THE WEST IN THE
                    LATE MORNING AND AFTERNOON.
LAL.................1.
CWR.................ZERO PERCENT.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......2800-3800 FT AGL INCREASING TO 6900-7900 FT AGL
                    IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTHEAST AROUND 8 MPH SHIFTING TO THE WEST 9
                    TO 16 MPH IN THE LATE MORNING AND AFTERNOON.
SMOKE DISPERSAL.....POOR (33000 KNOT-FT) INCREASING TO GOOD (92000
                    KNOT-FT) IN THE AFTERNOON.

.FORECAST DAYS 3 THROUGH 5...
.TUESDAY NIGHT...MOSTLY CLEAR. LOWS IN THE LOWER 40S. WINDS
GENERALLY LESS THAN 10 MPH.
.WEDNESDAY...PARTLY CLOUDY. LOWS IN THE MID 40S. HIGHS IN THE
UPPER 70S. WINDS GENERALLY LESS THAN 10 MPH.
.THURSDAY...MOSTLY CLEAR. LOWS IN THE MID 40S. HIGHS IN THE UPPER
70S. WINDS GENERALLY LESS THAN 10 MPH.
.FRIDAY...MOSTLY CLEAR. LOWS IN THE MID 40S. HIGHS AROUND 80.
WINDS GENERALLY LESS THAN 10 MPH.

$$

FORECASTER...MEUNIER
REQUESTED BY...MIKE BENTLEY
REASON FOR REQUEST...WILDFIRE
.TAG 20100718.CATHE.02/RIW