FNUS75 KMSO 051358
FWSMSO

SPOT FORECAST FOR ISLAND SOUTH UNITS 28 29
NATIONAL WEATHER SERVICE MISSOULA MT
758 AM MDT FRI JUN 5 2009

FORECAST IS BASED ON IGNITION TIME OF 0755 MDT ON JUNE 05.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.


...STRONG GUSTY NORTHEAST WINDS TO DEVELOP AFTER 1500...
...MUCH COLDER AIR WITH PRECIPITATION EXPECTED SATURDAY...

.DISCUSSION...A STRONG LOW PRESSURE SYSTEM APPROACHING NORTHWEST MONTANA
WILL SIGNIFICANTLY STRENGTHEN PRESSURE GRADIENTS TODAY AND SATURDAY
TO PRODUCE STRONG NORTHEAST WINDS STARTING AFTER 1500 FRIDAY. NORTHEAST
WINDS OF 10-20 MPH WITH SOME GUSTS TO 25 MPH ARE EXPECTED. MOISTURE
WITH THIS LOW WILL INCREASE PRECIPITATION CHANCES SATURDAY.

.TODAY...

MAX TEMPERATURE.....64-69.
MIN HUMIDITY........33-38 PERCENT.
WIND (20 FT)........LIGHT SOUTH WINDS SHIFTING TO THE NORTHEAST
                    10-20 MPH WITH GUSTS UP TO 25 MPH AFTER 1500.

.TONIGHT...

CWR.................40 PERCENT.
MIN TEMPERATURE.....35-40.
MAX HUMIDITY........77-82 PERCENT.
WIND (20 FT)........NORTHEAST WINDS 12-20 MPH. GUSTS UP TO 30 MPH
                    IN THE EVENING.

.SATURDAY...

CWR.................30 PERCENT.
MAX TEMPERATURE.....42-47.
MIN HUMIDITY........57-62 PERCENT.
WIND (20 FT)........NORTHEAST WINDS 10-15 MPH WITH HIGHER GUSTS.

$$
FORECASTER...RPN
REQUESTED BY...BRETT PARGMAN
TYPE OF REQUEST...PRESCRIBED
.TAG 20090605.ISLAN.01/MSO