FNUS73 KABR 201633
FWSABR

SPOT FORECAST FOR LA PLANT RX...CHEYENNE RIVER
NATIONAL WEATHER SERVICE ABERDEEN SD
1133 AM CDT WED OCT 20 2010

FORECAST IS BASED ON IGNITION TIME OF 1200 MDT ON OCTOBER 20.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...

BREEZY NORTHWEST WINDS OF 10 TO 15MPH WITH GUSTS IN EXCESS OF 20MPH
WILL DEVELOP THIS AFTERNOON FOR WEST CENTRAL SOUTH DAKOTA.
RH VALUES WILL ALSO FALL TO AROUND 25 TO 30 PERCENT
FOR THE AREA.

.TODAY...
SKY/WEATHER.........SUNNY (0-10 PERCENT CLOUD).
MAX TEMPERATURE.....65-70.
MIN HUMIDITY........28-33 PERCENT.
WIND (20 FT)........NORTHWEST WINDS 6 TO 16 MPH WITH GUSTS TO
                    AROUND 25 MPH.
HAINES INDEX........5 OR MODERATE.
MIXING HEIGHT.......300 FT AGL UNTIL 1300. 5100 FT AGL AFTER 1600.
TRANSPORT WINDS.....NORTHWEST 18 TO 23 MPH UNTIL 1000...THEN 23 TO
                    32 MPH.
SMOKE DISPERSAL.....4200-6100 UNTIL 1300...THEN 78800-98800.
CWR.................ZERO.
LAL.................1.

TIME (MDT)      NOON   2 PM   4 PM
SKY (%).........9      7      4
WEATHER COV.....
WEATHER TYPE....NONE   NONE   NONE
TEMP............58     63     63
RH..............38     33     32
20 FT WIND......NW 14  NW 14  NW 12
20 FT WIND GUST.20     20     20

.TONIGHT...
SKY/WEATHER.........CLEAR (0-5 PERCENT CLOUD).
MIN TEMPERATURE.....29-34.
MAX HUMIDITY........72-77 PERCENT.
WIND (20 FT)........NORTHWEST WINDS AROUND 6 MPH UNTIL 2100...THEN
                    LIGHT.
HAINES INDEX........4 OR LOW.
MIXING HEIGHT.......300 FT AGL.
TRANSPORT WINDS.....NORTH 5 TO 13 MPH UNTIL 0100...THEN EAST 1 TO 6
                    MPH.
SMOKE DISPERSAL.....800-2300.
CWR.................ZERO.
LAL.................1.

TIME (MDT)      6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
SKY (%).........1      1      1      1      2      2
WEATHER COV.....
WEATHER TYPE....NONE   NONE   NONE   NONE   NONE   NONE
TEMP............55     47     43     39     38     36
RH..............43     54     63     69     70     73
20 FT WIND......NW 5   N 3    N 2    NE 2   NE 2   E 3
20 FT WIND GUST.10     5      5                    5

$$
FORECASTER...CONNELLY
REQUESTED BY...ANTHONY KENNEDY
TYPE OF REQUEST...PRESCRIBED
.TAG 20101020.LAPLA.01/ABR