FNUS75 KPIH 030932
FWSPIH

SPOT FORECAST FOR BREAKS 1
NATIONAL WEATHER SERVICE POCATELLO ID
332 AM MDT TUE APR 3 2012

IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER SERVICE.

DISCUSSION...A LOW PRESSURE SYSTEM POSITIONED ALONG THE CANADIAN
COAST WILL PROVIDE A DRY SOUTHWEST FLOW ACROSS THE REGION TODAY. A
DISTURBANCE EJECTING FROM THIS LOW AND EMBEDDED IN THE SOUTHWEST FLOW
WILL LIFT NORTHEAST INTO THE IDAHO PANHANDLE WEDNESDAY WITH
ACCOMPANYING SHOWERS AND ISOLATED THUNDERSTORMS MOVING INTO THE BURN
AREA BY LATE MORNING AND CONTINUING THROUGH THE AFTERNOON.

FOR PLANNED IGNITION TIME OF 1300 MDT 4/3/12
   SKY/WEATHER......INCREASING HIGH CLOUDS THIS AFTERNOON.
   TEMPERATURE........54 AT 1300 MDT...MAX 65 AT 3500 MSL.
                                       MAX 50 AT 7500 MSL.
   HUMIDITY...........28% AT 1300 MDT...MIN 18% AT 3500 MSL.
                                        MIN 20% AT 7500 MSL.
   WIND - 20 FT.....DRAINAGE WINDS 3 TO 8 MPH BELOW 6000 MSL AND
                    SOUTHWEST 6 TO 12 MPH ABOVE 6000 MSL THIS
                    MORNING. IN THE AFTERNOON...WINDS INCREASING
                    6 TO 12 MPH AND VARIABLE IN DIRECTION BELOW
                    5500 MSL AND SOUTHWEST 8 TO 18 MPH ABOVE
                    5500 MSL. IF THE BURN HAPPENS TO GENERATE ENOUGH
                    HEAT...THE MIXING ACTION MAY BRING DOWN STRONGER
                    WINDS ALOFT PRODUCING GUSTS 20 TO 25 MPH IN THE
                    AFTERNOON MAINLY ABOVE 5500 MSL.
   CWR................ZERO PERCENT.
   MIXING HEIGHT........INCREASING TO 9700 MSL THIS AFTERNOON.
   TRANSPORT WINDS......SOUTH-SOUTHWEST 15 MPH.
   HAINES INDEX.........2 VERY LOW.

FOR TONIGHT
   SKY/WEATHER......MOSTLY CLOUDY.
   TEMPERATURE........MIN 37
   HUMIDITY...........MAX 62%
   WIND - 20 FT.....LIGHT DRAINAGE WINDS 3 TO 6 MPH DEVELOPING BELOW
                    6000 MSL OVERNIGHT. SOUTH WINDS 5 TO 15 MPH ABOVE
                    6000 MSL. MODELS DEPICT A STABLE LAYER ABOVE THE
                    SURFACE INVERSION THAT EXTENDS TO NEAR 7500 MSL
                    WITH SOUTH WINDS OF 20 TO 25 MPH AT AND ABOVE
                    THIS LAYER.
   CWR................ZERO PERCENT.
   MIXING HEIGHT........SURFACE BASED INVERSION UP TO 6000 MSL
                        DEVELOPING OVERNIGHT.
   TRANSPORT WINDS......SOUTH-SOUTHEAST UP TO 10 MPH BELOW 6000 MSL.
   HAINES INDEX.........3 VERY LOW.

OUTLOOK FOR WEDNESDAY
   SKY/WEATHER......CLOUDY WITH SHOWERS LIKELY AND A SLIGHT CHANCE OF
                    AFTERNOON THUNDERSTORMS.
   TEMPERATURE........MAX 57 AT 3500 MSL.
                      MAX 40 AT 7500 MSL.
   HUMIDITY...........MIN 25% AT 3500 MSL.
                      MIN 28% AT 7500 MSL.
   WIND - 20 FT.....INCREASING SOUTH TO SOUTHWEST WINDS 5 TO 15 MPH
                    THROUGH THE MORNING WITH THE INVERSION BREAKING
                    QUICKLY BETWEEN 0900 AND 1200 MDT. FRONTAL
                    PASSAGE EXPECTED BETWEEN 1200 AND 1500 MDT WITH
                    WINDS SWITCHING TO THE SOUTHWEST TO WEST 8 TO 18
                    MPH BELOW 5500 MSL AND WEST AT 15 TO 25 MPH ABOVE
                    5500 MSL.
   CWR................45%
   MIXING HEIGHT........INCREASING RAPIDLY TO 9500 MSL IN THE
                        AFTERNOON.
   TRANSPORT WINDS......WEST 15 TO 20 MPH IN THE AFTERNOON.
   HAINES INDEX.........2 VERY LOW.

FORECASTER...HUSTON

$$

REQUESTED BY...TOM GONNOUD
REASON FOR REQUEST...UNDER THE INTERAGENCY AGREEMENT FOR METEOROLOGICAL SERVICES (USFS, BLM, NPS, U