Suppression Forecast
Issued by NWS Riverton, WY

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary Off
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

000
FNUS75 KRIW 241409
FWSRIW

SPOT FORECAST FOR HYATT...BLM WBD
NATIONAL WEATHER SERVICE RIVERTON WY
809 AM MDT THU JUL 24 2014

FORECAST IS BASED ON IGNITION TIME OF 0438 MDT ON JULY 24.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...

...HOT AND DRY TODAY WITH GUSTY WEST TO SOUTHWEST WIND DEVELOPING...

IT WILL BE SUNNY TO MOSTLY SUNNY AND QUITE HOT TODAY WITH HIGHS WELL
UP INTO THE 90S WITH MIN RH`S DROPPING INTO THE SINGLE DIGITS. WEST
TO SOUTHWEST WINDS OF 15 TO 20 MPH WITH GUSTS AROUND 30 MPH WILL
DEVELOP THIS AFTERNOON AND INCREASE THE FIRE DANGER WHEN COMBINED
WITH THE HOT TEMPERATURES...LOW RH`S AND HIGH HAINES INDEX OF 6.
FRIDAY WILL STILL BE HOT...LOWER 90S...WITH LOW RH`S OF 10 TO 13
PERCENT AND AFTERNOON WEST WINDS 10 TO 20 MPH.


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

FORECASTER...SKRBAC

.TODAY...
SKY/WEATHER.........MOSTLY SUNNY (15-25 PERCENT).
MAX TEMPERATURE.....93-96.
MIN HUMIDITY........7-10 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH BECOMING WEST 15 TO 20
                    MPH WITH GUSTS TO 30 MPH IN THE AFTERNOON.
RIDGE TOP WINDS.....SOUTH AROUND 10 MPH SHIFTING TO THE
                    SOUTHWEST 15 TO 20 MPH AFTER 1000L AND 20 TO 25 MPH
                    IN THE AFTERNOON.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......7000-8000 FT AGL INCREASING TO 13000-14000 FT
                    AGL IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTH AROUND 10 MPH UNTIL 1000L THEN BECOMING
                    SOUTHWEST 20 TO 22 MPH IN THE AFTERNOON.
SMOKE DISPERSAL.....GOOD (75000 KNOT-FT) INCREASING TO EXCELLENT
                    (265000 KNOT-FT) IN THE AFTERNOON.

.TONIGHT...
SKY/WEATHER.........MOSTLY CLEAR (5-15 PERCENT).
MIN TEMPERATURE.....55-58.
MAX HUMIDITY........53-56 PERCENT.
20 FOOT WINDS.......NORTHWEST WINDS 8 TO 12 MPH WITH GUSTS TO
                    AROUND 25 MPH IN THE EVENING BECOMING
                    DOWNSLOPE/DOWNVALLEY 4-7 MPH.
RIDGE TOP WINDS.....NORTHWEST 15 TO 20 MPH DECREASING TO AROUND 10
                    MPH AFTER MIDNIGHT...THEN SHIFTING TO THE WEST
                    EARLY IN THE MORNING.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......6700-7700 FT AGL DECREASING TO 1900-2400 FT AGL
                    AFTER MIDNIGHT.
TRANSPORT WINDS.....WEST 18 TO 23 MPH SHIFTING TO THE SOUTHWEST
                    AROUND 10 MPH EARLY IN THE MORNING.
SMOKE DISPERSAL.....VERY GOOD (140000 KNOT-FT) DECREASING TO POOR
                    (21400 KNOT-FT) AFTER MIDNIGHT.

.FORECAST DAYS 3 THROUGH 5...
.FRIDAY...SUNNY AND HOT. HIGHS IN THE LOWER 90S. AFTERNOON WEST
WIND 10 TO 20 MPH. MIN RH`S 10 TO 13 PERCENT.
.FRIDAY NIGHT...CLEAR. LOWS IN THE LOWER 50S. WINDS GENERALLY
LESS THAN 10 MPH.
.SATURDAY...CLEAR. LOWS IN THE MID 50S. HIGHS IN THE LOWER 80S.
WINDS GENERALLY LESS THAN 10 MPH.
.SUNDAY...MOSTLY CLEAR. LOWS IN THE UPPER 50S. HIGHS IN THE MID
80S. WINDS GENERALLY LESS THAN 10 MPH.
.MONDAY...MOSTLY CLEAR. LOWS AROUND 60. HIGHS IN THE MID 80S.
WINDS GENERALLY LESS THAN 10 MPH.

$$

FORECASTER...SKRBAC
REQUESTED BY...CDC
REASON FOR REQUEST...PRESCRIBED
.TAG 20140724.HYATT.01/RIW






USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.