FNUS73 KABR 281438
FWSABR

SPOT FORECAST FOR LA PLANT RX...BIA
NATIONAL WEATHER SERVICE ABERDEEN SD
938 AM CDT WED SEP 28 2011

FORECAST IS BASED ON IGNITION TIME OF 1000 MDT ON SEPTEMBER 28.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
A COLD FRONT WILL SLOWLY PUSH ACROSS THE AREA THIS AFTERNOON WITH
WINDS SHIFTING TO THE NORTHWEST. GUSTS AROUND 25 MPH WILL BE
POSSIBLE BEHIND THE PASSAGE OF THE COLD FRONT...WITH THE STRONGEST
WINDS OCCURRING MOST LIKELY AFTER 4 PM CDT. HIGH TEMPERATURES TODAY
WILL HAVE THE POTENTIAL TO BE WARMER THEN THE CURRENT
FORECAST...WHICH COULD LEAD TO LOWER MINIMUM RELATIVE HUMIDITY
VALUES. CURRENTLY THE GRASSLAND FIRE DANGER INDEX FOR CORSON AND
DEWEY COUNTY IS VERY HIGH.

.TODAY...
SKY/WEATHER.........SUNNY (20-30 PERCENT CLOUD).
MAX TEMPERATURE.....81-86.
MIN HUMIDITY........20-25 PERCENT.
WIND (20 FT)........LIGHT WINDS UNTIL 1000...THEN NORTH 7 TO 17 MPH
                    WITH GUSTS TO AROUND 25 MPH.
HAINES INDEX........6 OR HIGH.
MIXING HEIGHT.......300 FT AGL UNTIL 1300...THEN 2700 FT AGL.
TRANSPORT WINDS.....NORTHWEST 8 TO 13 MPH UNTIL 1300...THEN NORTH
                    20 TO 25 MPH.
SMOKE DISPERSAL.....AROUND 2400 UNTIL 1300...THEN AROUND 51400.
CWR.................ZERO.

TIME (MDT)      10 AM  NOON   2 PM   4 PM
SKY (%).........22     25     26     29
WEATHER COV.....
WEATHER TYPE....NONE   NONE   NONE   NONE
TEMP............69     77     81     81
RH..............36     26     23     22
20 FT WIND......NW 5   NW 9   NW 14  N 15
20 FT WIND GUST.10     15     20     25

.TONIGHT...
SKY/WEATHER.........MOSTLY CLEAR (20-30 PERCENT CLOUD).
MIN TEMPERATURE.....47-52.
MAX HUMIDITY........42-47 PERCENT.
WIND (20 FT)........NORTHWEST WINDS 8 TO 17 MPH WITH GUSTS TO
                    AROUND 25 MPH.
HAINES INDEX........5 OR MODERATE.
MIXING HEIGHT.......300 FT AGL.
TRANSPORT WINDS.....NORTHWEST 29 TO 34 MPH.
SMOKE DISPERSAL.....6700-6800.
CWR.................ZERO.

TIME (MDT)      6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
SKY (%).........30     32     34     35     28     18
WEATHER COV.....
WEATHER TYPE....NONE   NONE   NONE   NONE   NONE   NONE
TEMP............75     66     61     57     55     53
RH..............26     35     40     42     44     45
20 FT WIND......N 15   N 14   NW 12  NW 14  NW 14  NW 12
20 FT WIND GUST.25     20     20     20     20     20

$$
FORECASTER...DOERING
REQUESTED BY...ANTHONY KENNEDY
TYPE OF REQUEST...PRESCRIBED
.TAG 20110928.LAPLA.01/ABR