Suppression Forecast
Issued by NWS Riverton, WY

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000
FNUS75 KRIW 170146
FWSRIW

Spot Forecast for CROWHEART FIRE...BIA
National Weather Service Riverton WY
746 PM MDT Mon Apr 16 2018

Forecast is based on request time of 2000 MDT on April 16.
If conditions become unrepresentative...contact the National Weather
Service.

.DISCUSSION...A gusty wind will continue ahead of a cold front
that will pass through the fire area between 9 PM and 11 PM.
A west to southwest wind will turn to the northwest. It will be
dry through midnight, then a chance of rain or snow showers after
midnight through 11 AM Tuesday. A gusty west to northwest
wind will occur Tuesday morning after 9 AM and continue through
the day.

...Thunderstorms imply strong gusty and erratic winds...
...Haines index is high level haines both day and night...

FORECASTER...AR

.TONIGHT...

Sky/weather.........Mostly cloudy. Chance of rain showers after
                    midnight...changing to snow showers by 3 AM.
Min temperature.....29-32.
Max humidity........61-64 percent.

20-foot winds.......West wind at 8 to 12 mph with gusts to 15 mph
                    until 10 PM.  Then northwest at 12 to 17 mph
                    with gusts to 25 mph after 10 PM.
                    Northwest wind decreasing to 6 to 10 mph
                    after 3 AM.

Ridge top winds.....West at 10 to 15 mph with gusts around 20 mph
                    until 10 PM.  Then northwest at 15 to 20 mph
                    with gusts 25 to 30 mph after 10 PM.
                    Northwest wind decreasing to 8 to 13 mph after
                    3 AM.

LAL.................No Tstms.
Chc of wetting rain.Less than 5 percent.
Haines Index........3 or very low potential for large plume
                    dominated fire growth.
Mixing height.......Decreasing to 500 FT AGL by midnight.
Transport winds.....West at 15 to 20 mph...becoming northwest at
                    15 to 20 after 10 PM.
                    Northwest at 10 mph after 3 AM.
Smoke dispersal.....Fair...Becoming Poor after midnight.

.TUESDAY...

Sky/weather.........Mostly cloudy until 11 AM with a chance of
                    snow showers. Partly cloudy after 1200.
Max temperature.....42-45.
Min humidity........29-32 percent.

20-foot winds.......Northwest at 6 to 10 mph until 0900.
                    Then northwest wind at 13 to 18 mph with gusts
                    around 25 mph.

Ridge top winds.....Northwest at 10 to 15 mph until 0900.
                    Then northwest wind at 15 to 20 mph with
                    gusts around 30 mph in the afternoon.

LAL.................No Tstms.
Chc of wetting rain.less than 5 percent.
Haines Index........3 or very low potential for large plume
                    dominated fire growth.
Mixing height.......Increasing to 6000-7000 FT AGL in the
                    afternoon.
Transport winds.....West to Northwest at 20 mph.
Smoke dispersal.....Becoming Fair after 0900. Becoming Very Good by 1400.

.FORECAST DAYS 3 THROUGH 5...

.TUESDAY NIGHT...
Colder. Mostly clear. Lows around 20. West winds around 10 mph.

.WEDNESDAY...
Partly cloudy. Lows around 20. Highs in the upper 40s. Winds
generally less than 10 mph.

.THURSDAY...
Cloudy with chance of showers and snow showers. Lows in the mid
20s. Highs around 50. Winds generally less than 10 mph.

.FRIDAY...
Mostly cloudy. Slight chance of showers and snow showers. Lows in
the upper 20s. Highs around 50. Winds generally less than 10 mph.

.SATURDAY...
Mostly clear. Lows in the upper 20s. Highs in the mid 50s. Winds
generally less than 10 mph.

$$
Forecaster...Ross
Requested by...DANA COOK
Type of request...WILDFIRE
.TAG 1806808.0/RIW
.EMAIL dana.cook@bia.gov



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