Wyoming Fire Weather Zone 300

.DISCUSSION...

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

A WAVE OF LOW PRESSURE WILL MOVE ACROSS THE DISPATCH AREAS TODAY.
THIS SYSTEM WILL BRING CONTINUED SHOWER ACTIVITY ACROSS THE
AREA...WITH SCATTERED THUNDERSTORMS POSSIBLE IN THE AFTERNOON. GUSTY
WIND MAY ACCOMPANY STORMS IN THE AFTERNOON. STORMS SHOULD WEAKEN
THIS EVENING WITH THE LOSS OF DAYLIGHT...THOUGH A RETURN OF SHOWERS
AND THUNDERSTORMS IS EXPECTED ON SUNDAY. THE WAVE OF LOW PRESSURE
WILL INTRODUCE COOLING TEMPERATURES...WITH INCREASED HUMIDITY
LINGERING FOR A COUPLE OF DAYS.

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

A WAVE OF LOW PRESSURE WILL MOVE ACROSS THE DISPATCH AREA TODAY.
THIS SYSTEM WILL BRING CONTINUED SHOWER ACTIVITY ACROSS THE
AREA...WITH ISOLATED TO SCATTERED THUNDERSTORMS POSSIBLE IN THE
AFTERNOON. GUSTY WIND MAY ACCOMPANY STORMS IN THE AFTERNOON. STORMS
SHOULD WEAKEN THIS EVENING WITH THE LOSS OF DAYLIGHT...THOUGH A
RETURN OF SHOWERS AND THUNDERSTORMS IS EXPECTED ON SUNDAY. THE WAVE
OF LOW PRESSURE WILL INTRODUCE COOLING TEMPERATURES...WITH INCREASED
HUMIDITY LINGERING FOR A COUPLE OF DAYS.

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

A WAVE OF LOW PRESSURE WILL MOVE ACROSS THE DISPATCH AREAS TODAY.
THIS SYSTEM WILL BRING CONTINUED SHOWER ACTIVITY ACROSS THE
AREA...WITH SCATTERED THUNDERSTORMS POSSIBLE IN THE AFTERNOON. GUSTY
WIND MAY ACCOMPANY STORMS IN THE AFTERNOON. A FEW STORMS ACROSS THE
BIG HORN BASIN MAY BECOME STRONG IN THE AFTERNOON WITH STRONG WIND
AND LARGER HAIL. STORMS SHOULD WEAKEN THIS EVENING WITH THE LOSS OF
DAYLIGHT...THOUGH A RETURN OF SHOWERS AND THUNDERSTORMS IS EXPECTED
ON SUNDAY. PATCHY FOG WILL AGAIN BE POSSIBLE OVER NIGHT ACROSS THE
BIG HORN BASIN IN RESPONSE TO ANTICIPATED RAIN. THE WAVE OF LOW
PRESSURE WILL INTRODUCE COOLING TEMPERATURES...WITH INCREASED
HUMIDITY LINGERING FOR A COUPLE OF DAYS.

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

A WAVE OF LOW PRESSURE WILL MOVE ACROSS THE DISPATCH AREAS TODAY.
THIS SYSTEM WILL BRING CONTINUED SHOWER ACTIVITY ACROSS THE
AREA...WITH SCATTERED THUNDERSTORMS POSSIBLE IN THE AFTERNOON. GUSTY
WIND MAY ACCOMPANY STORMS IN THE AFTERNOON. A FEW STORMS ACROSS
JOHNSON COUNTY MAY BECOME STRONG IN THE AFTERNOON WITH STRONG WIND AND
LARGER HAIL. STORMS SHOULD WEAKEN THIS EVENING WITH THE LOSS OF
DAYLIGHT...THOUGH A RETURN OF SHOWERS AND THUNDERSTORMS IS EXPECTED
ON SUNDAY. PATCHY FOG WILL AGAIN BE POSSIBLE OVER NIGHT ACROSS ZONE 281
IN RESPONSE TO ANTICIPATED RAIN. THE WAVE OF LOW PRESSURE WILL
INTRODUCE COOLING TEMPERATURES...WITH INCREASED HUMIDITY LINGERING
FOR A COUPLE OF DAYS.

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

CASPER MOUNTAIN-
254 AM MDT SAT MAY 18 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.....61-66.
   24 HR TREND......18 DEGREES COOLER.
MIN HUMIDITY........28-34 PERCENT.
   24 HR TREND......18 PERCENT WETTER.
20-FOOT WINDS.......SOUTHWEST WINDS 10 TO 15 MPH WITH GUSTS TO
                    AROUND 25 MPH UNTIL 1500...THEN AROUND 20 MPH
                    WITH GUSTS TO AROUND 25 MPH.
RIDGE TOP WINDS.....SOUTHWEST 15 TO 20 MPH UNTIL 1200...THEN AROUND
                    25 MPH.
LAL.................1 UNTIL 1200...THEN 3.
CHC OF WETTING RAIN.ZERO PERCENT UNTIL 1200...THEN 10 PERCENT.
TRANSPORT WINDS.....SOUTHWEST 15 TO 20 MPH UNTIL 1200...THEN AROUND
                    25 MPH.
MIXING HEIGHT.......3000-5500 FT AGL UNTIL 1200...THEN 7000-8500 FT
                    AGL.
SMOKE DISPERSAL.....GOOD (60000-80000 KNOT-FT) UNTIL 1200...THEN
                    VERY GOOD TO EXCELLENT (136000-156000 KNOT-FT).
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.

.TONIGHT...
SKY/WEATHER.........MOSTLY CLOUDY. SCATTERED THUNDERSTORMS UNTIL
                    2400. SCATTERED RAIN SHOWERS. SOME
                    THUNDERSTORMS MAY PRODUCE GUSTY WINDS AND SMALL
                    HAIL UNTIL 2400.
MIN TEMPERATURE.....38-43.
   24 HR TREND......5 DEGREES COOLER.
MAX HUMIDITY........81-87 PERCENT.
   24 HR TREND......12 PERCENT WETTER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......WEST WINDS 10 TO 15 MPH. GUSTS UP TO 20 MPH
                    UNTIL 2400.
RIDGE TOP WINDS.....WEST 15 TO 20 MPH.
LAL.................4 UNTIL 2400...THEN 1.
CHC OF WETTING RAIN.10 PERCENT.
TRANSPORT WINDS.....WEST 15 TO 20 MPH.
MIXING HEIGHT.......5500-8000 FT AGL UNTIL 2400...THEN 2500-4500 FT
                    AGL.
SMOKE DISPERSAL.....GOOD TO VERY GOOD (98000-118000 KNOT-FT) UNTIL
                    2400...THEN FAIR TO GOOD (40000-60000 KNOT-FT).
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.

.SUNDAY...
SKY/WEATHER.........MOSTLY CLOUDY. ISOLATED THUNDERSTORMS UNTIL
                    1200. SCATTERED RAIN SHOWERS. ISOLATED
                    THUNDERSTORMS AFTER 1200. SOME THUNDERSTORMS
                    MAY PRODUCE GUSTY WINDS AFTER 1200.
MAX TEMPERATURE.....51-56.
   24 HR TREND......10 DEGREES COOLER.
MIN HUMIDITY........44-50 PERCENT.
   24 HR TREND......17 PERCENT WETTER.
20-FOOT WINDS.......NORTHWEST WINDS 10 TO 15 MPH.
RIDGE TOP WINDS.....NORTHWEST 15 TO 20 MPH.
LAL.................2.
CHC OF WETTING RAIN.20 PERCENT UNTIL 1200...THEN 35 PERCENT.
TRANSPORT WINDS.....WEST AROUND 20 MPH UNTIL 0900...THEN NORTH.
MIXING HEIGHT.......3000-5500 FT AGL UNTIL 1200...THEN 5500-6000 FT
                    AGL.
SMOKE DISPERSAL.....GOOD (72000-92000 KNOT-FT).
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.


.FORECAST DAYS 3 THROUGH 7......
.SUNDAY NIGHT...CLOUDY. SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS
IN THE EVENING...THEN SCATTERED SHOWERS AND SNOW SHOWERS AFTER
MIDNIGHT. LOWS IN THE UPPER 30S. NORTHWEST WINDS AROUND 10 MPH.
.MONDAY...CLOUDY WITH NUMEROUS SHOWERS WITH POSSIBLE SNOW SHOWERS
AND THUNDERSTORMS. LOWS IN THE UPPER 30S. HIGHS IN THE LOWER 50S.
NORTHWEST WINDS AROUND 15 MPH.
.TUESDAY...PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS. LOWS AROUND 40.
HIGHS IN THE MID 50S. NORTHWEST WINDS AROUND 10 MPH.
.WEDNESDAY...WARMER. PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE UPPER 60S. SOUTH
WINDS AROUND 10 MPH.
.THURSDAY THROUGH FRIDAY...PARTLY CLOUDY WITH SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS 71 TO 76.
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