FNUS75 KBOI 271422
FWSBOI

SPOT FORECAST FOR FIRE SCHOOL PRACTICE BURN...USFS
NATIONAL WEATHER SERVICE BOISE ID
822 AM MDT THU MAY 27 2010

FORECAST IS BASED ON IGNITION TIME OF 1200 MDT ON MAY 27.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

...MORE SHOWERS...

.DISCUSSION...
...UPPER LEVEL LOW PRESSURE ALONG THE OREGON COAST THIS MORNING WILL
CAUSE SHOWERS IN WESTERN IDAHO THROUGH FRIDAY. THE UPPER LOW WILL
MOVE INLAND ACROSS NORTHERN CALIFORNIA TONIGHT AND NEVADA FRIDAY.
COLDER AIR ALOFT ASSOCIATED WITH THE UPPER LOW WILL HELP FORM
THUNDERSTORMS THIS AFTERNOON AND EVENING.

.TODAY...

SKY/WEATHER.........CLOUDY. SCATTERED RAIN SHOWERS IN THE MORNING...
                    THEN NUMEROUS RAIN SHOWERS AND SCATTERED THUNDERSTORMS
                    IN THE AFTERNOON.
MAX TEMPERATURE.....48 TO 61.
MIN HUMIDITY........49 TO 67 PERCENT.
WIND (EYE LEVEL)....SOUTHWEST UP TO 6 MPH.
HAINES INDEX........3 VERY LOW.
MIXING HEIGHT.......5500 FT AGL.
TRANSPORT WINDS.....SOUTH AROUND 10 MPH.
VENTILATION INDEX...550 GOOD.

.TONIGHT...

SKY/WEATHER.........MOSTLY CLOUDY. A CHANCE OF RAIN SHOWERS THROUGH
                    THE NIGHT. A SLIGHT CHANCE OF THUNDERSTORMS IN
                    THE EVENING.
MIN TEMPERATURE.....37 TO 42.
MAX HUMIDITY........85 TO 90 PERCENT.
WIND (EYE LEVEL)....WEST AROUND 6 MPH IN THE EVENING...SHIFTING TO
                    THE SOUTHEAST 3 TO 5 MPH AFTER MIDNIGHT.
HAINES INDEX........3 VERY LOW.
MIXING HEIGHT.......500 FT AGL.
TRANSPORT WINDS.....NORTH AROUND 5 MPH.
VENTILATION INDEX...25 POOR.

.FRIDAY...

SKY/WEATHER.........CLOUDY. RAIN SHOWERS LIKELY THROUGH THE DAY.
MAX TEMPERATURE.....46 TO 58.
MIN HUMIDITY........53 TO 70 PERCENT.
WIND (EYE LEVEL)....NORTHWEST 5 TO 11 MPH.
HAINES INDEX........3 VERY LOW.
MIXING HEIGHT.......4000 FT AGL.
TRANSPORT WINDS.....NORTHWEST AROUND 15 MPH.
VENTILATION INDEX...600 GOOD.

$$
FORECASTER...COLIN
REQUESTED BY...TAVIS SORENSEN
TYPE OF REQUEST...PRESCRIBED
.TAG 20100527.FIRES.01/BOI