Wyoming Fire Weather Zone 140

.DISCUSSION...
...YELLOWSTONE NP AND TETON DISPATCH AREAS (INCLUDES FIRE WEATHER ZONES 140...414...415...AND 416)... DRY CONDITIONS ARE EXPECTED THROUGH SUNDAY MORNING ACROSS THE DISPATCH AREA. HUMIDITY IS EXPECTED TO REMAIN ABOVE CRITICAL THRESHOLDS...KEEPING FIRE WEATHER CONCERNS MINIMAL. AN APPROACHING AREA OF LOW PRESSURE WILL HELP TO GENERATE SOME SHOWERS AND THUNDERSTORMS OVER THE DISPATCH AREA SUNDAY...WHICH WILL CONTINUE THROUGH MONDAY EVENING. STORMS MAY CONTAIN SOME GUSTY WIND ALONG WITH LIGHTNING ACTIVITY. OUTSIDE OF THREATS ASSOCIATED WITH THESE STORMS...FIRE WEATHER CONCERNS SHOULD GENERALLY STAY BELOW CRITICAL THRESHOLDS. ...RAWLINS DISPATCH AREA (INCLUDES FIRE WEATHER ZONES 277...278... AND 279)... DRY CONDITIONS ARE EXPECTED THROUGH SUNDAY MORNING ACROSS THE DISPATCH AREA. HUMIDITY IS EXPECTED TO REMAIN ABOVE CRITICAL THRESHOLDS ...KEEPING FIRE WEATHER CONCERNS MINIMAL. AN APPROACHING AREA OF LOW PRESSURE WILL HELP TO GENERATE SOME SHOWERS AND THUNDERSTORMS OVER THE DISPATCH AREA SUNDAY...WHICH WILL CONTINUE THROUGH MONDAY EVENING. STORMS MAY CONTAIN SOME GUSTY WIND ALONG WITH LIGHTNING ACTIVITY AND POSSIBLE LOCALLY HEAVY RAINFALL. OUTSIDE OF THREATS ASSOCIATED WITH THESE STORMS...SOME GUSTY WIND MAY DEVELOP ACROSS THE DISPATCH AREA. GENERALLY..FIRE WEATHER CONCERNS SHOULD STAY BELOW CRITICAL THRESHOLDS. ...CODY DISPATCH AREA (INCLUDES FIRE WEATHER ZONES 275...276... 282...283...285...286...287...288...AND 289)... DRY CONDITIONS ARE EXPECTED THROUGH SUNDAY MORNING ACROSS THE DISPATCH AREA. HUMIDITY IS EXPECTED TO REMAIN ABOVE CRITICAL THRESHOLDS... KEEPING FIRE WEATHER CONCERNS MINIMAL. AN APPROACHING AREA OF LOW PRESSURE WILL HELP TO GENERATE SOME SHOWERS AND THUNDERSTORMS WILL MOVE INTO THE SOUTHWESTERN PORTION OF THE DISPATCH AREA SUNDAY AFTERNOON AND EVENING...WHICH WILL SPREAD TO INCLUDE THE ENTIRETY OF THE DISPATCH AREA BY MONDAY MORNING. ACTIVITY WILL CONTINUE THROUGH MONDAY EVENING ACROSS THE AREA STORMS MAY CONTAIN SOME GUSTY WIND ALONG WITH LIGHTNING ACTIVITY. OUTSIDE OF THREATS ASSOCIATED WITH THESE STORMS...FIRE WEATHER CONCERNS SHOULD GENERALLY STAY BELOW CRITICAL THRESHOLDS. ...CASPER DISPATCH AREA (INCLUDES FIRE WEATHER ZONES 280...281... 285...289...AND 300)... NORTH WINDS OVER ZONE 281 WILL DIMINISH ACROSS ZONE 281 BY SUNSET. DRY CONDITIONS ARE EXPECTED THROUGH SUNDAY MORNING ACROSS THE DISPATCH AREA. HUMIDITY IS EXPECTED TO REMAIN ABOVE CRITICAL THRESHOLDS...KEEPING FIRE WEATHER CONCERNS MINIMAL. AN APPROACHING AREA OF LOW PRESSURE WILL HELP TO GENERATE SOME SHOWERS AND THUNDERSTORMS WILL MOVE INTO THE SOUTHWESTERN PORTION OF THE DISPATCH AREA SUNDAY EVENING...THOUGH SOME SHOWERS MAY ARRIVE A BIT EARLIER ACROSS ZONE 289. ACTIVITY WILL SPREAD TO INCLUDE THE ENTIRETY OF THE DISPATCH AREA BY THE EARLY HOURS OF MONDAY MORNING. ACTIVITY WILL CONTINUE THROUGH MONDAY EVENING ACROSS THE AREA STORMS MAY CONTAIN SOME GUSTY WIND ALONG WITH LIGHTNING ACTIVITY. OUTSIDE OF THREATS ASSOCIATED WITH THESE STORMS...FIRE WEATHER CONCERNS SHOULD GENERALLY STAY BELOW CRITICAL THRESHOLDS. ...THUNDERSTORMS IMPLY STRONG GUSTY AND ERRATIC WINDS... ...HAINES INDEX IS HIGH LEVEL HAINES BOTH DAY AND NIGHT... YELLOWSTONE NATIONAL PARK- INCLUDING...LAKE...MAMMOTH...OLD FAITHFUL 235 PM MDT SAT SEP 20 2014 .TONIGHT... SKY/WEATHER.........CLEAR. MIN TEMPERATURE.....35-40. 24 HR TREND......1 DEGREE WARMER. MAX HUMIDITY........88-94 PERCENT. 24 HR TREND......1 PERCENT WETTER. HUMIDITY RECOVERY...EXCELLENT. 20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 4-7 MPH. RIDGE TOP WINDS.....LIGHT AND VARIABLE WINDS UNTIL 2100...THEN EAST 10 TO 15 MPH. LAL.................1. CHC OF WETTING RAIN.ZERO PERCENT. TRANSPORT WINDS.....LIGHT AND VARIABLE WINDS UNTIL 2400...THEN EAST AROUND 15 MPH. MIXING HEIGHT.......2500-5000 FT AGL. SMOKE DISPERSAL.....POOR (14000-34000 KNOT-FT). HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .SUNDAY... SKY/WEATHER.........SUNNY UNTIL 1200...THEN PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS AFTER 1200. CHANCE OF PRECIPITATION 20 PERCENT. MAX TEMPERATURE.....66-71. 24 HR TREND......1 DEGREE WARMER. MIN HUMIDITY........33-39 PERCENT. 24 HR TREND......5 PERCENT WETTER. 20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH. RIDGE TOP WINDS.....SOUTHEAST 10 TO 15 MPH UNTIL 1500...THEN SOUTH. LAL.................1 UNTIL 1200...THEN 2. CHC OF WETTING RAIN.ZERO PERCENT. TRANSPORT WINDS.....SOUTH 10 TO 15 MPH. MIXING HEIGHT.......2000-4500 FT AGL UNTIL 1200...THEN 5500-8000 FT AGL. SMOKE DISPERSAL.....POOR TO FAIR (38000-58000 KNOT-FT). HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .SUNDAY NIGHT... SKY/WEATHER.........MOSTLY CLOUDY. ISOLATED RAIN SHOWERS UNTIL 2400. ISOLATED THUNDERSTORMS. SCATTERED RAIN SHOWERS AFTER 2400. CHANCE OF PRECIPITATION 50 PERCENT. MIN TEMPERATURE.....39-44. 24 HR TREND......3 DEGREES WARMER. MAX HUMIDITY........91-97 PERCENT. 24 HR TREND......2 PERCENT WETTER. HUMIDITY RECOVERY...EXCELLENT. 20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 4-7 MPH UNTIL 2100...THEN SOUTH AROUND 10 MPH WITH GUSTS TO AROUND 15 MPH UNTIL 2400...THEN DOWNSLOPE/DOWNVALLEY 4-7 MPH. RIDGE TOP WINDS.....SOUTHWEST AROUND 10 MPH. LAL.................3 UNTIL 2400...THEN 2. CHC OF WETTING RAIN.10 PERCENT UNTIL 2400...THEN 30 PERCENT. TRANSPORT WINDS.....SOUTHWEST 10 TO 15 MPH. MIXING HEIGHT.......5000-7500 FT AGL UNTIL 2400...THEN 2000-4000 FT AGL. SMOKE DISPERSAL.....POOR TO FAIR (32000-52000 KNOT-FT). HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .MONDAY... SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS UNTIL 1200. ISOLATED THUNDERSTORMS. NUMEROUS RAIN SHOWERS AFTER 1200. CHANCE OF PRECIPITATION 70 PERCENT. MAX TEMPERATURE.....58-65. 24 HR TREND......6 DEGREES COOLER. MIN HUMIDITY........56-62 PERCENT. 24 HR TREND......20 PERCENT WETTER. 20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 0900...THEN WEST 10 TO 15 MPH WITH HIGHER GUSTS. RIDGE TOP WINDS.....WEST 10 TO 15 MPH. LAL.................2. CHC OF WETTING RAIN.47 PERCENT. TRANSPORT WINDS.....WEST 15 TO 20 MPH. MIXING HEIGHT.......2500-5000 FT AGL. SMOKE DISPERSAL.....POOR TO FAIR (34000-54000 KNOT-FT). HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .FORECAST DAYS 3 THROUGH 7...... .MONDAY NIGHT...MOSTLY CLOUDY. SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS IN THE EVENING...THEN ISOLATED SHOWERS AFTER MIDNIGHT. LOWS AROUND 40. WINDS GENERALLY LESS THAN 10 MPH. .TUESDAY...PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS. LOWS IN THE UPPER 30S. HIGHS IN THE LOWER 60S. WINDS GENERALLY LESS THAN 10 MPH. .WEDNESDAY THROUGH THURSDAY...MOSTLY CLEAR. LOWS AROUND 40. HIGHS IN THE MID 60S. SOUTH WINDS AROUND 10 MPH. .FRIDAY...PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS... THUNDERSTORMS AND SNOW SHOWERS. LOWS IN THE UPPER 30S. HIGHS AROUND 60. .SATURDAY...MOSTLY CLOUDY. CHANCE OF SHOWERS AND ISOLATED THUNDERSTORMS IN THE MORNING...THEN CHANCE OF SHOWERS AND THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE MID 50S.
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