152
FNUS75 KBOI 141930
FWSBOI
SPOT FORECAST FOR MANN CREEK NATURAL RX...PAYETTE NF
NATIONAL WEATHER SERVICE BOISE ID
130 PM MDT WED MAY 14 2008
FORECAST IS BASED ON IGNITION TIME OF 1000 MDT ON MAY 15.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
..WARMING AND DRYING THROUGH THE WEEKEND
..POOR TO FAIR VENTILATION INDICIES FRIDAY AND SATURDAY
DISCUSSION
A RIDGE ALOFT WILL BEGIN TO BUILD INTO THE REGION TONIGHT AND LAST
THROUGH THE WEEKEND. TEMPERATURES ARE EXPECTED TO BE WELL ABOVE
AVERAGE THROUGH MONDAY WITH STABLE CONDITIONS. WITH THE RIDGE BUILDING
IN...EXPECT TERRAIN DRIVEN WINDS AT THE SURFACE AND LIGHT WINDS OVER THE
RIDGES. THEREFORE VENTILATION INDICIES ARE NOT EXPECTED TO BE VERY HIGH
OVER THE WEEKEND.
TODAY / THURSDAY/
SKY/WEATHER.........SUNNY.
MAX TEMPERATURE.....65 TO 70.
MIN HUMIDITY........35 TO 40 PERCENT.
WIND - EYE LEVEL....NORTH TO NORTHEAST 9 TO 12 MPH RIDGELINE WINDS. IN THE
DRAINAGE...UPSLOPE 3 TO 5 MPH IN THE MORNING BECOMING
UP VALLEY 5 TO 8 MPH BY THE AFTERNOON.
HAINES INDEX........2 VERY LOW.
MIXING HEIGHT.......4500 FT AGL.
TRANSPORT WIND......NORTH TO NORTHEAST 10 TO 15 MPH.
VENTILATION INDEX...500 GOOD.
TONIGHT
SKY/WEATHER.........CLEAR.
MIN TEMPERATURE.....47 TO 52.
MAX HUMIDITY........63 TO 69 PERCENT.
WIND - EYE LEVEL....DOWN DRAINAGE 3 TO 5 MPH AFTER SUNSET.
HAINES INDEX........4 LOW.
MIXING HEIGHT.......1000 FT AGL.
TRANSPORT WIND......NORTHEAST AROUND 5 MPH.
VENTILATION INDEX...LESS THAN 100 POOR.
FRIDAY
SKY/WEATHER.........SUNNY.
MAX TEMPERATURE.....74 TO 80.
MIN HUMIDITY........25 TO 30 PERCENT.
WIND - EYE LEVEL....OVER THE RIDGES...NORTHEAST 3 TO 6 MPH IN THE
MORNING...SHIFTING TO THE SOUTH AROUND 6 MPH IN
THE AFTERNOON. IN THE DRAINAGE...UPSLOPE 1 TO 3 MPH
IN THE MORNING BECOMING UP VALLEY 5 TO 7 MPH BY THE
AFTERNOON.
HAINES INDEX........4 LOW.
MIXING HEIGHT.......5500 FT AGL.
TRANSPORT WIND......SOUTH AROUND 5 MPH.
VENTILATION INDEX...275 FAIR.
FORECASTER...REDMAN
REQUESTED BY...NATE LEFEVRE
TYPE OF REQUEST...PRESCRIBED
.TAG 20080514.MANNC.01/BOI
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