000 
FNUS75 KBOU 281743
FWSBOU

SPOT FORECAST FOR STEWARDSHIP 3  UNIT 4
ISSUED BY NATIONAL WEATHER SERVICE DENVER CO
1145 AM MDT THU APR 28 2005

IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NWS.

SYNOPSIS...A FAIRLY MOIST WEST TO NORTHWEST FLOW ALOFT WILL 
CONTINUE ACROSS THE AREA THROUGH TONIGHT.  THERE IS CURRENTLY
A BREAK IN THE SHOWERS...WHICH WILL ALLOW MIXING HEIGHTS
TO INCREASE A BIT AND IMPROVE THE SMOKE DISPERSION FOR PART OF THE 
AFTERNOON.  HOWEVER BY LATE THIS AFTERNOON...A COLD FRONT IS 
EXPECTED TO MOVE INTO THE AREA WITH EASTERLY WINDS AT THE SITE.
THIS EASTERLY FLOW WILL COMBINE WITH AN UPPER LEVEL DISTURBANCE TO 
INCREASE THE SNOW TONIGHT.  EXPECT SOME ACCUMULATIONS BY MORNING.
ON FRIDAY...THE DISTURBANCE WILL MOVE EAST OF THE AREA AND ALLOW FOR 
DRIER AIR TO SPREAD OVER THE SITE.  AS A RESULT...THE SNOW WILL 
DECREASE DURING THE MORNING.  ADDITIONAL ACCUMULATIONS ARE POSSIBLE 
BUT WILL BE ON THE LIGHT SIDE.  TRANSPORT WINDS WILL INCREASE BEHIND 
THE DISTURBANCE...WHICH WILL IMPROVE THE AFTERNOON DISPERSION.

EXTENDED SYNOPSIS...NORTHWEST FLOW ALOFT WILL CONTINUE THROUGH THE 
WEEKEND WITH SLIGHTLY DRIER CONDITIONS.  THERE WILL BE ENOUGH 
MOISTURE FOR CLOUD COVER...THOUGH SHOWERS ARE NOT EXPECTED.  
TRANSPORT WINDS WILL REMAIN STRONG ENOUGH TO PROVIDE FOR GOOD 
AFTERNOON DISPERSION.  ON MONDAY...AN UPPER LEVEL DISTURBANCE WILL 
AFFECT THE AREA...INCREASING THE CHANCE FOR SHOWERS.

.TODAY...
SKY/WEATHER.........MOSTLY CLOUDY. SCATTERED SNOW SHOWERS
                    INCREASING IN COVERAGE AFTER 1500. 
MAX TEMPERATURE.....34-39. 
MIN HUMIDITY........35-40 PERCENT. 
20-FOOT WINDS.......WEST 5-10 MPH...BECOMING EAST 2-5 MPH 
                    AFTER 1700 
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME 
                    DOMINATED FIRE GROWTH. 
SMOKE DISPERSAL.....FAIR...BECOMING GOOD AFTER 1300. 
MIXING HEIGHT.......2000 FT AGL...INCREASING TO 5000 FEET AGL
                    AFTER 1300. 
TRANSPORT WIND......WEST 15 MPH...INCREASING TO 25 MPH AFTER 1300. 

.TONIGHT...
SKY/WEATHER.........CLOUDY. OCCASIONAL SNOW. ACCUMULATIONS OF
                    2 TO 4 INCHES POSSIBLE.
MIN TEMPERATURE.....22-26. 
MAX HUMIDITY........90-100 PERCENT. 
20-FOOT WINDS.......SOUTHEAST 2-5 MPH...BECOMING SOUTHWEST BY 
                    2100. AFTER 2400...WEST 5-10 MPH. 
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME 
                    DOMINATED FIRE GROWTH. 
SMOKE DISPERSAL.....GOOD UNTIL 1700...THEN FAIR.  POOR AFTER 
                    2200. 
MIXING HEIGHT.......5000 FT AGL...LOWERING TO 1000 FEET AGL
                    BY 2200. 
TRANSPORT WIND......WEST 15 MPH. 

.FRIDAY...
SKY/WEATHER.........MOSTLY CLOUDY. OCCASIONAL SNOW...DECREASING TO 
                    SCATTERED SNOW SHOWERS AFTER 1100.  ADDITIONAL 
                    ACCUMULATIONS 1 TO 2 INCHES POSSIBLE. 
MAX TEMPERATURE.....30-35. 
MIN HUMIDITY........55-60%. 
20-FOOT WINDS.......NORTHWEST 10 MPH. 
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME 
                    DOMINATED FIRE GROWTH. 
SMOKE DISPERSAL.....POOR UNTIL 1000...THEN FAIR. GOOD AFTER 1200.
                    VERY GOOD BETWEEN 1400 AND 1600. 
MIXING HEIGHT.......1000 FEET AGL...INCREASING TO 5000 FT AGL. 
TRANSPORT WIND......NORTHWEST 15 MPH...INCREASING TO 25 MPH
                    AFTER 1400. 

.SATURDAY...PARTLY CLOUDY. LOWS AROUND 20. HIGHS IN THE UPPER
30S. TYPICAL SLOPE/VALLEY WINDS LESS THAN 12 MPH. 
.SUNDAY...MOSTLY CLOUDY. LOWS IN THE MID 20S. HIGHS IN THE MID
40S. TYPICAL SLOPE/VALLEY WINDS LESS THAN 12 MPH. 
.MONDAY...MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND SNOW SHOWERS.
LOWS IN THE UPPER 20S. HIGHS AROUND 50. TYPICAL SLOPE/VALLEY
WINDS LESS THAN 12 MPH. 

$$
LESZCYNSKI...NWS BOU
REQUESTED BY...CHAD SEWELL
REASON FOR REQUEST...PRESCRIBED
.TAG 20050428.STEWA.01/BOU