Wyoming Fire Weather Zone 415

...RED FLAG WARNING IN EFFECT FROM 11 AM THIS MORNING TO 10 PM MDT
THIS EVENING FOR CASPER DISPATCH...

.DISCUSSION...

...YELLOWSTONE NP AND TETON DISPATCH AREAS (INCLUDES FIRE WEATHER
ZONES 140...414...415...AND 416)...

MIXED WET AND DRY ISOLATED THUNDERSTORMS THIS AFTERNOON AND EVENING
IN ZONES 140 AND 415...RETURNING THURSDAY AND FRIDAY. IT WILL BE TOO
DRY EVERYWHERE ELSE AS MINIMUM RH DROPS BELOW 15 PERCENT...BELOW 10
PERCENT ACROSS SOUTHERN PORTIONS OF THE DISPATCH AREA. WINDS WILL
ALSO INCREASE TODAY WITH FREQUENT GUSTS OVER 25 MPH EXPECTED ACROSS
THE AREA. A COLD FRONT APPROACHES FROM THE WEST THIS EVENING...WHICH
WILL INCREASE THE CHANCE OF A WET SHOWER OR THUNDERSTORM AS WELL AS
DROP TEMPERATURES SIGNIFICANTLY AND RAISE RELATIVE HUMIDITY.
THURSDAY WILL STILL BE ON THE DRY SIDE BUT WINDS WILL BE LIGHTER.

...RAWLINS DISPATCH AREA (INCLUDES FIRE WEATHER ZONES 277...278...
AND 279)...

...STRONG WIND...VERY LOW HUMIDITY...A HAINES INDEX OF 6 AND A DRY
COLD FRONTAL PASSAGE TODAY...

RELATIVE HUMIDITY WILL GENERALLY FALL TO THE SINGLE DIGITS FOR THE
NEXT FEW AFTERNOONS...WITH A VERY UNSTABLE AIRMASS MOVING IN. EXPECT
HAINES INDEX OF 5 OR 6 FOR THE NEXT COUPLE OF DAYS. A DRY COLD FRONT
MOVES IN TONIGHT...MODERATING TEMPERATURES AND RHS SLIGHTLY
ACROSS 277...BUT WINDS WILL BE STRONG FROM THE SOUTHWEST WITH
FREQUENT GUSTS OVER 25 MPH FOR MUCH OF THE DAY TODAY WITH GUSTS OVER
40 MPH POSSIBLE IN FAVORED AREAS OF ZONE 279 THIS AFTERNOON. GUSTY
WIND AND LOW HUMIDITY RETURN ON THURSDAY...BUT THE WINDS WILL BE
LESS GUSTY AND THE RELATIVE HUMIDITY NOT QUITE AS LOW.

...CODY DISPATCH AREA (INCLUDES FIRE WEATHER ZONES 275...276...
282...283...285...286...287...288...AND 289)...

...STRONG WIND...VERY LOW HUMIDITY...A HAINES INDEX OF 6 AND A DRY
COLD FRONTAL PASSAGE TODAY...

IT WILL BE WARM...DRIER AND WINDY TODAY WITH NO THUNDERSTORMS
EXPECTED. RH VALUES COULD DROP INTO THE SINGLE DIGITS ESPECIALLY
ACROSS SOUTHERN PORTIONS OF THE DISPATCH AREA. A DRY COLD FRONT
MOVES THROUGH TONIGHT...LEADING TO DECENT RH RECOVERY OVERNIGHT INTO
THURSDAY MORNING. DRY AND BREEZY CONDITIONS RETURN TO SOUTHERN
PORTIONS OF THE DISPATCH AREA ON THURSDAY...BUT IT WILL BE MUCH MORE
MODERATE AND ABOUT 10 DEGREES COOLER.

...CASPER DISPATCH AREA (INCLUDES FIRE WEATHER ZONES 280...281...
285...289...AND 300)...

...RED FLAG WARNING FOR MUCH OF THE DISPATCH AREA TODAY...

RELATIVE HUMIDITY WILL GENERALLY FALL TO AROUND 10 PERCENT FOR THE
NEXT FEW AFTERNOONS...WITH A VERY UNSTABLE AIRMASS MOVING IN. EXPECT
HAINES INDEX OF 5 OR 6 FOR THE NEXT COUPLE OF DAYS. A DRY COLD FRONT
MOVES IN TONIGHT...MODERATING TEMPERATURES AND RHS SLIGHTLY...BUT
WINDS WILL BE STRONG FROM THE SOUTHWEST WITH FREQUENT GUSTS OVER 25
MPH FOR MUCH OF THE DAY TODAY WITH GUSTS OVER 40 MPH POSSIBLE IN
FAVORED AREAS THIS AFTERNOON. GUSTY WIND AND LOW HUMIDITY RETURN ON
THURSDAY...BUT THE WINDS WILL BE LESS GUSTY AND THE RELATIVE
HUMIDITY NOT QUITE AS LOW.

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

NORTH ZONE BRIDGER TETON NF AND GRAND TETON NP-
226 AM MDT WED JUN 19 2013

.TODAY...
SKY/WEATHER.........PARTLY CLOUDY UNTIL 1200...THEN MOSTLY CLOUDY.
                    ISOLATED SHOWERS AND THUNDERSTORMS AFTER 1200.
                    SOME THUNDERSTORMS MAY PRODUCE GUSTY WINDS
                    AFTER 1200.
MAX TEMPERATURE.....64-74.
   24 HR TREND......8 DEGREES COOLER.
MIN HUMIDITY........20-26 PERCENT.
   24 HR TREND......5 PERCENT WETTER.
20-FOOT WINDS.......SOUTH WINDS 10 TO 15 MPH WITH HIGHER GUSTS
                    UNTIL 1200...THEN SOUTHWEST 15 TO 20 MPH WITH
                    GUSTS TO AROUND 25 MPH.
RIDGE TOP WINDS.....SOUTHWEST 15 TO 20 MPH.
LAL.................1 UNTIL 1200...THEN 2.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHEAST AROUND 15 MPH UNTIL 0900...THEN SOUTH
                    UNTIL 1200...THEN 30 TO 35 MPH.
MIXING HEIGHT.......5000-7500 FT AGL UNTIL 1200...THEN 8500-10500
                    FT AGL.
SMOKE DISPERSAL.....GOOD TO VERY GOOD (82000-102000 KNOT-FT) UNTIL
                    1200...THEN EXCELLENT (168000-188000 KNOT-FT).
HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.

.TONIGHT...
SKY/WEATHER.........PARTLY CLOUDY. ISOLATED SHOWERS AND
                    THUNDERSTORMS UNTIL 2400. SOME THUNDERSTORMS
                    MAY PRODUCE GUSTY WINDS UNTIL 2400.
MIN TEMPERATURE.....30-35.
   24 HR TREND......10 DEGREES COOLER.
MAX HUMIDITY........68-74 PERCENT.
   24 HR TREND......10 PERCENT WETTER.
HUMIDITY RECOVERY...GOOD.
20-FOOT WINDS.......SOUTHWEST WINDS 10 TO 15 MPH WITH GUSTS TO
                    AROUND 25 MPH UNTIL 2400...THEN NORTHWEST WITH
                    GUSTS TO AROUND 15 MPH UNTIL 0300...THEN
                    DOWNSLOPE/DOWNVALLEY 4-7 MPH.
RIDGE TOP WINDS.....SOUTHWEST 15 TO 20 MPH UNTIL 2400...THEN NORTH
                    AROUND 10 MPH UNTIL 0300...THEN SOUTHWEST.
LAL.................2 UNTIL 2400...THEN 1.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST AROUND 25 MPH UNTIL 0300...THEN
                    AROUND 15 MPH.
MIXING HEIGHT.......5500-8000 FT AGL UNTIL 2400...THEN 1500-4000 FT
                    AGL.
SMOKE DISPERSAL.....VERY GOOD TO EXCELLENT (132000-152000 KNOT-FT)
                    UNTIL 2400...THEN FAIR TO GOOD (42000-62000
                    KNOT-FT).
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.

.THURSDAY...
SKY/WEATHER.........MOSTLY SUNNY UNTIL 1200...THEN PARTLY CLOUDY.
                    ISOLATED SHOWERS AND THUNDERSTORMS AFTER 1200.
                    SOME THUNDERSTORMS MAY PRODUCE GUSTY WINDS
                    AFTER 1200.
MAX TEMPERATURE.....55-64.
   24 HR TREND......7 DEGREES COOLER.
MIN HUMIDITY........21-27 PERCENT.
   24 HR TREND......UNCHANGED.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 0900...THEN
                    SOUTHWEST 10 TO 15 MPH WITH HIGHER GUSTS.
RIDGE TOP WINDS.....SOUTHWEST 10 TO 15 MPH.
LAL.................1 UNTIL 1200...THEN 2.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTH AROUND 10 MPH UNTIL 0900. SOUTHWEST
                    AROUND 30 MPH AFTER 1500.
MIXING HEIGHT.......2500-5000 FT AGL UNTIL 1200...THEN 7000-9500 FT
                    AGL.
SMOKE DISPERSAL.....FAIR TO GOOD (48000-68000 KNOT-FT) UNTIL
                    1200...THEN VERY GOOD TO EXCELLENT
                    (146000-166000 KNOT-FT).
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.


.FORECAST DAYS 3 THROUGH 7......
.THURSDAY NIGHT...PARTLY CLOUDY. LOWS IN THE MID 30S. WINDS
GENERALLY LESS THAN 10 MPH.
.FRIDAY...PARTLY CLOUDY WITH ISOLATED SHOWERS...THUNDERSTORMS AND
SNOW SHOWERS. LOWS IN THE MID 30S. HIGHS IN THE UPPER 50S. SOUTHWEST
WINDS AROUND 10 MPH.
.SATURDAY...PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE MID 30S. HIGHS IN THE UPPER 50S.
SOUTHWEST WINDS AROUND 10 MPH.
.SUNDAY...MOSTLY CLEAR. LOWS AROUND 40. HIGHS IN THE MID 60S.
SOUTHWEST WINDS AROUND 10 MPH.
.MONDAY THROUGH TUESDAY...PARTLY CLOUDY WITH SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE UPPER
60S.
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