FIRE WEATHER PLANNING FORECAST FOR SW IDAHO AND SE OREGON NATIONAL WEATHER SERVICE BOISE ID

FNUS55 KBOI 152113 FWFBOI FIRE WEATHER PLANNING FORECAST FOR SW IDAHO AND SE OREGON NATIONAL WEATHER SERVICE BOISE ID 313 PM MDT THU MAY 15 2008 ...HOT AND DRY CONDITIONS EXPECTED THROUGH THE WEEKEND... ...POOR TO FAIR VENTILATION FRIDAY... .DISCUSSION... A LARGE RIDGE ALOFT WILL DOMINATE THE WEATHER PATTERN OVER THE REGION THROUGH SUNDAY. THIS WILL BRING VERY WARM CONDITIONS WITH SOME AREAS FLIRTING WITH RECORD TEMPERATURES. AFTERNOON HUMIDITIES WILL LOWER INTO THE 5 TO 15 PERCENT RANGE THROUGH THE WEEKEND. OTHERWISE LIGHT WINDS ALOFT FRIDAY WILL BRING POOR TO FAIR VENTILATION INDICIES TO ALL AREAS. WINDS WILL INCREASE SLIGHTLY SATURDAY AND SUNDAY BRINGING BETTER MIXING TO THE REGION. MOISTURE IS EXPECTED TO MOVE BACK INTO THE AREA AHEAD OF ANOTHER COLD FRONT BY TUESDAY BRING THE THREAT OF CONVECTION. WINDS WILL GENERALLY BE LIGHT AND TERRAIN DRIVEN. IDZ400>404-162200- NORTHERN BOISE BLM-WESTERN PAYETTE NATIONAL FOREST- EASTERN PAYETTE NATIONAL FOREST-NORTHERN BOISE NATIONAL FOREST- SOUTHERN BOISE NATIONAL FOREST- 313 PM MDT THU MAY 15 2008 .TONIGHT... SKY/WEATHER.........CLEAR. MIN TEMPERATURE.....38 TO 52. 24 HR TREND......ON AVERAGE...8 DEGREES WARMER. MAX HUMIDITY........59 TO 89 PERCENT. 24 HR TREND......ON AVERAGE...15 PERCENT DRIER. 20-FOOT WINDS....... VALLEYS..........NORTHEAST 8 TO 13 MPH. RIDGES...........NORTHEAST 8 TO 11 MPH IN THE EVENING...BECOMING LIGHT AFTER MIDNIGHT. HAINES INDEX........4 LOW. LAL.................1. CWR /0.10 INCH/.....0 PERCENT. SMOKE DISPERSAL: MIXING HEIGHT......1000-2000 FT AGL. TRANSPORT WINDS....EAST 5 TO 10 MPH. .FRIDAY... SKY/WEATHER.........SUNNY. MAX TEMPERATURE.....69 TO 84. 24 HR TREND......ON AVERAGE...13 DEGREES WARMER. MIN HUMIDITY........15 TO 26 PERCENT. 24 HR TREND......ON AVERAGE...10 PERCENT DRIER. 20-FOOT WINDS....... VALLEYS..........LIGHT UPSLOPE WINDS LESS THAN 8 MPH. RIDGES...........LIGHT WINDS LESS THAN 8 MPH. HAINES INDEX........4 LOW. LAL.................1. CWR /0.10 INCH/.....0 PERCENT. SMOKE DISPERSAL: MIXING HEIGHT......4000-6000 FT AGL. TRANSPORT WINDS....NORTHWEST AROUND 5 MPH. .FRIDAY NIGHT... SKY/WEATHER.........CLEAR. MIN TEMPERATURE.....41 TO 56. 24 HR TREND......ON AVERAGE...4 DEGREES WARMER. MAX HUMIDITY........48 TO 73 PERCENT. 24 HR TREND......ON AVERAGE...14 PERCENT DRIER. 20-FOOT WINDS....... VALLEYS..........LIGHT DOWNSLOPE WINDS LESS THAN 8 MPH. RIDGES...........LIGHT WINDS LESS THAN 8 MPH. HAINES INDEX........5 MODERATE. LAL.................1. CWR /0.10 INCH/.....0 PERCENT. SMOKE DISPERSAL: MIXING HEIGHT......1000-2000 FT AGL. TRANSPORT WINDS....SOUTHEAST AROUND 5 MPH. .SATURDAY... SKY/WEATHER.........SUNNY. MAX TEMPERATURE.....74 TO 89. 24 HR TREND......ON AVERAGE...6 DEGREES WARMER. MIN HUMIDITY........14 TO 20 PERCENT. 24 HR TREND......ON AVERAGE...5 PERCENT DRIER. 20-FOOT WINDS....... VALLEYS..........LIGHT UPSLOPE WINDS LESS THAN 8 MPH IN THE MORNING...BECOMING SOUTHWEST AROUND 8 MPH IN THE AFTERNOON. RIDGES...........LIGHT WINDS LESS THAN 8 MPH IN THE MORNING...BECOMING WEST AROUND 8 MPH IN THE AFTERNOON. HAINES INDEX........4 LOW. LAL.................1. CWR /0.10 INCH/.....0 PERCENT. SMOKE DISPERSAL: MIXING HEIGHT......4500-6500 FT AGL. TRANSPORT WINDS....WEST 5 TO 15 MPH. $$ = IDZ408-418-419-162200- TREASURE VALLEY-WESTERN TWIN FALLS BLM-OWYHEE MOUNTAINS- 313 PM MDT THU MAY 15 2008 .TONIGHT... SKY/WEATHER.........CLEAR. MIN TEMPERATURE.....45 TO 58. 24 HR TREND......ON AVERAGE...8 DEGREES WARMER. MAX HUMIDITY........55 TO 75 PERCENT. 24 HR TREND......ON AVERAGE...14 PERCENT DRIER. 20-FOOT WINDS....... VALLEYS..........NORTHWEST 8 TO 9 MPH WITH GUSTS TO 20 MPH IN THE EVENING...BECOMING LIGHT DOWNSLOPE LESS THAN 8 MPH AFTER MIDNIGHT. RIDGES...........NORTHEAST 8 TO 13 MPH IN THE EVENING...BECOMING LIGHT AFTER MIDNIGHT. HAINES INDEX........4 LOW. LAL.................1. CWR /0.10 INCH/.....0 PERCENT. SMOKE DISPERSAL: MIXING HEIGHT......900-1400 FT AGL. TRANSPORT WINDS....EAST UP TO 10 MPH. .FRIDAY... SKY/WEATHER.........SUNNY. MAX TEMPERATURE.....78 TO 87. 24 HR TREND......ON AVERAGE...12 DEGREES WARMER. MIN HUMIDITY........13 TO 20 PERCENT. 24 HR TREND......ON AVERAGE...12 PERCENT DRIER. 20-FOOT WINDS....... VALLEYS..........LIGHT UPSLOPE WINDS LESS THAN 8 MPH. RIDGES...........LIGHT WINDS LESS THAN 8 MPH. HAINES INDEX........5 MODERATE. LAL.................1. CWR /0.10 INCH/.....0 PERCENT. SMOKE DISPERSAL: MIXING HEIGHT......5500-7500 FT AGL. TRANSPORT WINDS....NORTH AROUND 5 MPH. .FRIDAY NIGHT... SKY/WEATHER.........CLEAR. MIN TEMPERATURE.....45 TO 55. 24 HR TREND......ON AVERAGE...3 DEGREES WARMER. MAX HUMIDITY........40 TO 60 PERCENT. 24 HR TREND......ON AVERAGE...14 PERCENT DRIER. 20-FOOT WINDS....... VALLEYS..........LIGHT DOWNSLOPE WINDS LESS THAN 8 MPH IN THE EVENING...BECOMING SOUTHEAST AROUND 8 MPH AFTER MIDNIGHT. RIDGES...........LIGHT WINDS LESS THAN 8 MPH. HAINES INDEX........5 MODERATE. LAL.................1. CWR /0.10 INCH/.....0 PERCENT. SMOKE DISPERSAL: MIXING HEIGHT......900-1400 FT AGL. TRANSPORT WINDS....SOUTH UP TO 5 MPH. .SATURDAY... SKY/WEATHER.........SUNNY. MAX TEMPERATURE.....83 TO 93. 24 HR TREND......ON AVERAGE...6 DEGREES WARMER. MIN HUMIDITY........9 TO 16 PERCENT. 24 HR TREND......ON AVERAGE...5 PERCENT DRIER. 20-FOOT WINDS....... VALLEYS..........SOUTHEAST AROUND 8 MPH IN THE MORNING...BECOMING LIGHT UPSLOPE LESS THAN 8 MPH IN THE AFTERNOON. RIDGES...........LIGHT WINDS LESS THAN 8 MPH. HAINES INDEX........4 LOW. LAL.................1. CWR /0.10 INCH/.....0 PERCENT. SMOKE DISPERSAL: MIXING HEIGHT......6000-8000 FT AGL. TRANSPORT WINDS....NORTHWEST 5 TO 10 MPH. $$ = ORZ636-637-162200- BURNS BLM-VALE BLM- 313 PM MDT THU MAY 15 2008 /213 PM PDT THU MAY 15 2008/ .TONIGHT... SKY/WEATHER.........CLEAR. MIN TEMPERATURE.....45 TO 58. 24 HR TREND......ON AVERAGE...8 DEGREES WARMER. MAX HUMIDITY........46 TO 66 PERCENT. 24 HR TREND......ON AVERAGE...14 PERCENT DRIER. 20-FOOT WINDS....... VALLEYS..........NORTHEAST 9 TO 15 MPH. RIDGES...........NORTHEAST 9 TO 15 MPH. HAINES INDEX........5 MODERATE. LAL.................1. CWR /0.10 INCH/.....0 PERCENT. .FRIDAY... SKY/WEATHER.........SUNNY. MAX TEMPERATURE.....79 TO 88. 24 HR TREND......ON AVERAGE...13 DEGREES WARMER. MIN HUMIDITY........11 TO 18 PERCENT. 24 HR TREND......ON AVERAGE...17 PERCENT DRIER. 20-FOOT WINDS....... VALLEYS..........LIGHT UPSLOPE WINDS LESS THAN 8 MPH IN THE MORNING...BECOMING SOUTHEAST 8 TO 9 MPH IN THE AFTERNOON. RIDGES...........SOUTHEAST AROUND 8 MPH. HAINES INDEX........5 MODERATE. LAL.................1. CWR /0.10 INCH/.....0 PERCENT. .FRIDAY NIGHT... SKY/WEATHER.........CLEAR. MIN TEMPERATURE.....46 TO 57. 24 HR TREND......ON AVERAGE...4 DEGREES WARMER. MAX HUMIDITY........27 TO 42 PERCENT. 24 HR TREND......ON AVERAGE...22 PERCENT DRIER. 20-FOOT WINDS....... VALLEYS..........LIGHT DOWNSLOPE WINDS LESS THAN 8 MPH. RIDGES...........LIGHT WINDS LESS THAN 8 MPH. HAINES INDEX........5 MODERATE. LAL.................1. CWR /0.10 INCH/.....0 PERCENT. .SATURDAY... SKY/WEATHER.........SUNNY. MAX TEMPERATURE.....85 TO 94. 24 HR TREND......ON AVERAGE...6 DEGREES WARMER. MIN HUMIDITY........9 TO 14 PERCENT. 24 HR TREND......ON AVERAGE...3 PERCENT DRIER. 20-FOOT WINDS....... VALLEYS..........LIGHT UPSLOPE WINDS LESS THAN 8 MPH. RIDGES...........LIGHT WINDS LESS THAN 8 MPH. HAINES INDEX........4 LOW. LAL.................1. CWR /0.10 INCH/.....0 PERCENT. $$ = .FORECAST DAYS 3 THROUGH 7... .SUNDAY...MOSTLY CLEAR. LOWS 47 TO 58. HIGHS 78 TO 93. WEST WINDS UP TO 10 MPH. .MONDAY...MOSTLY CLEAR. LOWS 43 TO 57. HIGHS 78 TO 93. WEST WINDS UP TO 10 MPH. .TUESDAY...PARTLY CLOUDY. A 20 PERCENT CHANCE OF SHOWERS AND THUNDERSTORMS. LOWS 39 TO 52. HIGHS 72 TO 87. WEST WINDS 10 TO 15 MPH. .WEDNESDAY...COOLER. MOSTLY CLOUDY. A 40 PERCENT CHANCE OF SHOWERS. LOWS 35 TO 47. HIGHS 60 TO 75. .THURSDAY...PARTLY CLOUDY. A 20 PERCENT CHANCE OF SHOWERS. LOWS 33 TO 44. HIGHS 58 TO 73. .OUTLOOK FOR FRIDAY MAY 23 THROUGH THURSDAY MAY 29 CALLS FOR ABOVE NORMAL TEMPERATURES AND BELOW NORMAL PRECIPITATION. $$ =