FNUS73 KLOT 081646 AAA
FWSLOT

SPOT FORECAST FOR FERMILAB-FMA15...UPDATED
NATIONAL WEATHER SERVICE CHICAGO IL
1146 AM CDT WED APR 8 2009

FORECAST IS BASED ON IGNITION TIME OF 1300 CDT ON APRIL 08.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...A WEAK DISTURBANCE WILL DROP SOUTHEASTWARD ACROSS
THE UPPER MIDWEST THIS AFTERNOON BRINGING AN INCREASE IN
CLOUDS...WITH SOME INCREASE IN CLOUDS POSSIBLE THIS AFTERNOON.
WINDS WILL BE MUCH LIGHTER THAN YESTERDAY. A STORM SYSTEM
MOVING ASHORE INTO CALIFORNIA EARLY THIS MORNING WILL MOVE TO THE
ROCKIES BY EVENING AND OUT OVER THE PLAINS THURSDAY. CLOUDS WILL
START TO SPREAD INTO THE REGION FROM THE WEST AND SOUTHWEST THURSDAY
AHEAD OF THE APPROACHING SYSTEM. HIGHS WILL BE IN THE LOWER AND MID
50S AGAIN THURSDAY.


.REST OF TODAY...

SKY/WEATHER.........MOSTLY SUNNY.
TEMPERATURE.........51 AT IGNITION...MAX 53.
RH..................29 PERCENT AT IGNITION...MIN 26 PERCENT.
WIND (20 FT)........WINDS WEST AT 10 MPH AT IGNITION...OTHERWISE
                    NORTHWEST WINDS 6 TO 12 MPH.
MIXING HEIGHT.......4500 FT AGL INCREASING TO 6500 FT AGL BY IGNITION
                    TIME...THEN DECREASING TO 5000 FT AGL LATE IN THE
                    AFTERNOON.
TRANSPORT WINDS.....NORTHWEST 15 TO 20 MPH.
SMOKE DISPERSAL.....VERY GOOD /110000 KNOT-FT/ AT IGNITION.
                    MAX...VERY GOOD /125500 KNOT-FT/.

TIME (CDT)      1PM 2PM 3PM 4PM 5PM 6PM
SKY (%).........43  44  45  46  46  40
WEATHER COV.....
WEATHER TYPE....
TEMP............51  53  53  53  53  51
RH..............29  27  26  26  26  29
20 FT WIND DIR..270 280 290 290 290 300
20 FT WIND SPD..8   9   10  10  9   8
20 FT WIND GUST.15  15  15  15  15  15
MIX HGT (KFT)...7.1 7.1 7.3 7.0 6.3 5.3
TRANSP WIND DIR.280 280 290 300 300 300
TRANSP WIND SPD.18  20  20  20  18  17
VRATE KT-FT/1000110 119 126 121 104 79

$$
FORECASTER...MARSILI
REQUESTED BY...DAVE SHEMANSKE
TYPE OF REQUEST...PRESCRIBED
.TAG 20090408.FERMI.01/LOT