FNUS75 KRIW 141308
FWSRIW

SPOT FORECAST FOR ZIMMERMAN BUTTE...BLM WOD
NATIONAL WEATHER SERVICE RIVERTON WY
708 AM MDT SAT JUL 14 2012

FORECAST IS BASED ON REQUEST TIME OF 0648 MDT ON JULY 14.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
AN UPPER LEVEL HIGH PRESSURE RIDGE EXTENDS NORTH FROM THE SOUTHERN
PLAINS INTO THE DAKOTAS...WITH A LOW PRESSURE TROUGH OVER THE PACIFIC
NORTHWEST.  BETWEEN THE HIGH AND LOW...MOIST SOUTH SOUTHWEST FLOW
EXTENDS ACROSS WESTERN AND CENTRAL WYOMING WITH MONSOON MOISTURE
MOVING NORTH FROM NORTHWEST MEXICO...ACROSS THE DESERT SOUTHWEST...
THE GREAT BASIN OVER WYOMING.  THIS WILL KEEP HIGHER RELATIVE HUMIDITY
AND CLOUD COVER OVER THE FIRE AREA WITH SCATTERED LIGHT MORNING SHOWERS.
THIS AFTERNOON AND EVENING THE AIR MASS WILL BECOME MORE UNSTABLE
WITH AREAS OF HEAVIER SHOWERS AND THUNDERSTORMS AROUND THE FIRE AREA.
THE CLOUD COVER AND PRECIPITATION OVER THE AREA WILL COOL TEMPERATURES.
THIS PATTERN WILL CONTINUE SUNDAY AND MONDAY.

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

FORECASTER...C.BAKER

.TODAY...
SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT). ISOLATED SHOWERS
                    AND THUNDERSTORMS IN THE MORNING...THEN
                    SCATTERED SHOWERS AND THUNDERSTORMS IN THE
                    AFTERNOON.
MAX TEMPERATURE.....90-93.
MIN HUMIDITY........19-22 PERCENT.
20 FOOT WINDS.......VARIABLE AT 4-8 MPH BECOMING SOUTHWEST
                    AROUND 12 MPH WITH GUSTS TO AROUND 25 MPH LATE
                    IN THE AFTERNOON. GUSTY AND ERRATIC WINDS
                    EXPECTED NEAR THUNDERSTORMS.
RIDGE TOP WINDS.....SOUTH 10 TO 15 MPH INCREASING TO SOUTHWEST
                    AROUND 25 MPH LATE IN THE AFTERNOON.
LAL.................2 UNTIL 1200...THEN 4.
CHC OF WETTING RAIN.25 PERCENT.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.

.TONIGHT...
SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT) THEN BECOMING
                    PARTLY CLOUDY (40-50 PERCENT). SCATTERED
                    SHOWERS AND THUNDERSTORMS IN THE EVENING...THEN
                    INTERMITTENT LIGHT RAIN SHOWERS AFTER MIDNIGHT.
MIN TEMPERATURE.....63-66.
MAX HUMIDITY........55-60 PERCENT.
20 FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 4-7 MPH. GUSTY AND ERRATIC
                    WINDS EXPECTED NEAR THUNDERSTORMS IN THE
                    EVENING.
RIDGE TOP WINDS.....WEST 10 TO 15 MPH SHIFTING TO THE SOUTH EARLY
                    IN THE MORNING.
LAL.................4 UNTIL 2400...THEN 1.
CHC OF WETTING RAIN.25 PERCENT.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.

.SUNDAY...
SKY/WEATHER.........PARTLY CLOUDY IN THE MORNING (45-55 PERCENT)
                    THEN BECOMING MOSTLY CLOUDY (60-70 PERCENT).
                    INTERMITTENT LIGHT RAIN SHOWERS IN THE MORNING...
                    THEN SCATTERED SHOWERS AND THUNDERSTORMS IN THE
                    AFTERNOON.
MAX TEMPERATURE.....AROUND 87-90.
MIN HUMIDITY........21-24 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH BECOMING SOUTHWEST
                    AROUND 16 MPH WITH GUSTS TO AROUND 30 MPH LATE
                    IN THE AFTERNOON. GUSTY AND ERRATIC WINDS
                    EXPECTED NEAR THUNDERSTORMS IN THE AFTERNOON.
RIDGE TOP WINDS.....SOUTH 10 TO 15 MPH INCREASING TO SOUTHWEST
                    AROUND 20 MPH.
LAL.................1 UNTIL 1200...THEN 4.
CHC OF WETTING RAIN.20 PERCENT.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.

.FORECAST DAYS 3 THROUGH 5...
.SUNDAY NIGHT...MOSTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS
IN THE EVENING...THEN INTERMITTENT SPRINKLES AFTER MIDNIGHT. LOWS
IN THE LOWER 60S. WINDS GENERALLY LESS THAN 10 MPH.
.MONDAY...PARTLY CLOUDY WITH INTERMITTENT SPRINKLES AND SLIGHT
CHANCE OF THUNDERSTORMS. LOWS IN THE LOWER 60S. HIGHS IN THE
UPPER 80S. WINDS GENERALLY LESS THAN 10 MPH.
.TUESDAY...PARTLY CLOUDY WITH CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE LOWER 60S. HIGHS IN THE UPPER 80S.
WINDS GENERALLY LESS THAN 10 MPH.
.WEDNESDAY...MOSTLY CLEAR. LOWS AROUND 60. HIGHS IN THE LOWER
90S. WINDS GENERALLY LESS THAN 10 MPH.

$$

FORECASTER...C.BAKER
REQUESTED BY...HUTTON
REASON FOR REQUEST...WILDFIRE
.TAG 20120714.ZIMME.01/RIW