Fire Weather Zone 411

...THUNDERSTORMS EXPECTED TUESDAY THROUGH THURSDAY...
.DISCUSSION...UPPER RIDGE WILL REMAIN IN PLACE OVER SE IDAHO INTO MIDWEEK...HOWEVER A WEEK SHORTWAVE WILL MOVE THROUGH THE RIDGE TODAY AND PRODUCE ISOLATED SHOWERS...MAINLY OVER THE CENTRAL MOUNTAINS. THE UPPER RIDGE BEGINS TO SHIFT EAST ON WEDNESDAY AS A DEEP UPPER LOW APPROACHES THE WEST COAST. THIS APPROACHING LOW WILL BRING INCREASING MOISTURE AND INSTABILITY OVER SE IDAHO FOR WEDNESDAY EVENING AND THURSDAY. PRECIPITABLE WATER VALUES APPROACH AN INCH OR MORE FOR THURSDAY SO EXPECT LOCALLY HEAVY DOWNPOURS. THE UPPER LEVEL SYSTEM WILL SWING THROUGH SE IDAHO LATE THURSDAY NIGHT AND MUCH COOLER TEMPERATURES ARE EXPECTED FOR FRIDAY INTO THE WEEKEND. CENTENNIAL MOUNTAINS AND SNAKE RIVER RANGE/TARGHEE NF- 417 AM MDT TUE SEP 16 2014 .TODAY... * SKY/WEATHER...MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS IN THE AFTERNOON. * MAX TEMPERATURE...75-80 VALLEYS AND 68-75 RIDGES. * 24 HR TREND...LITTLE CHANGE. * MIN HUMIDITY...20-25 PERCENT VALLEYS AND 24-32 PERCENT RIDGES. * 24 HR TREND...UP 7. * 20FT/10MIN AVG WIND... * VALLEYS/LWR SLOPES...UPSLOPE/UPVALLEY 2 TO 4 MPH BECOMING SOUTHWEST AROUND 6 MPH IN THE AFTERNOON. * RIDGES/UPR SLOPES...SOUTH AROUND 6 MPH SHIFTING TO THE SOUTHWEST 6 TO 8 MPH IN THE AFTERNOON. * CHC WETTING RAIN...0 PERCENT. * LAL...1...THEN 2 IN THE AFTERNOON. * HAINES INDEX...4 LOW. * MIXING HEIGHT...11250-12250 FT AGL. * TRANSPORT WINDS...LIGHT AND VARIABLE WINDS BECOMING WEST AROUND 10 MPH IN THE AFTERNOON. .TONIGHT... * SKY/WEATHER...PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS EARLY IN THE EVENING. SLIGHT CHANCE OF RAIN SHOWERS AFTER MIDNIGHT. * MIN TEMPERATURE...45-53. * 24 HR TREND...UP 4. * MAX HUMIDITY...74-82 PERCENT VALLEYS AND 66-74 PERCENT RIDGES. * 24 HR TREND...UP 11. * 20FT/10MIN AVG WIND... * VALLEYS/LWR SLOPES...DOWNSLOPE/DOWNVALLEY 2 TO 4 MPH. * RIDGES/UPR SLOPES...EAST 6 TO 7 MPH SHIFTING TO THE SOUTH AROUND 6 MPH AFTER MIDNIGHT. * CHC WETTING RAIN...10 PERCENT. * LAL...2...THEN 1 IN THE LATE EVENING AND OVERNIGHT. * HAINES INDEX...4 LOW. * MIXING HEIGHT...200-1200 FT AGL. * TRANSPORT WINDS...SOUTHWEST AROUND 10 MPH IN THE EVENING BECOMING LIGHT AND VARIABLE WINDS. .WEDNESDAY... * SKY/WEATHER...PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN SHOWERS IN THE MORNING...THEN CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON. * MAX TEMPERATURE...78-81 VALLEYS AND 69-76 RIDGES. * 24 HR TREND...UP 2. * MIN HUMIDITY...23-28 PERCENT VALLEYS AND 28-36 PERCENT RIDGES. * 24 HR TREND...UP 2. * 20FT/10MIN AVG WIND... * VALLEYS/LWR SLOPES...UPSLOPE/UPVALLEY 2 TO 5 MPH BECOMING SOUTHWEST AROUND 6 MPH IN THE AFTERNOON. * RIDGES/UPR SLOPES...SOUTH 6 TO 9 MPH. * CHC WETTING RAIN...10 PERCENT. * LAL...1...THEN 2 IN THE AFTERNOON. * HAINES INDEX...4 LOW. * MIXING HEIGHT...9500-10500 FT AGL. * TRANSPORT WINDS...LIGHT AND VARIABLE WINDS BECOMING WEST AROUND 15 MPH IN THE AFTERNOON. .THURSDAY...MOSTLY CLOUDY WITH CHANCE OF SHOWERS AND THUNDERSTORMS. LOWS 46 TO 52. HIGHS 68 TO 75. SOUTH WINDS 10 TO 15 MPH. .FRIDAY...CHANCE OF SHOWERS AND THUNDERSTORMS. PARTLY CLOUDY. LOWS IN THE MID 40S. HIGHS 65 TO 72. SOUTHWEST WINDS AROUND 10 MPH. .SATURDAY...SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS. MOSTLY CLEAR. LOWS IN THE LOWER 40S. HIGHS 63 TO 70. NORTHWEST WINDS AROUND 10 MPH. .SUNDAY THROUGH MONDAY...MOSTLY CLEAR. LOWS 39 TO 46. HIGHS 65 TO 72.
View Complete Fire Weather Zones

Back to Fire Weather Page

USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.