Suppression Forecast
Issued by NWS Aberdeen, SD

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000
FNUS73 KABR 181433
FWSABR

SPOT FORECAST FOR COMMUNITY RX...BIA
NATIONAL WEATHER SERVICE ABERDEEN SD
933 AM CDT THU SEP 18 2014

FORECAST IS BASED ON IGNITION TIME OF 0930 CDT ON SEPTEMBER 18.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...ONCE THE MORNING TEMPERATURE INVERSION IS MIXED
OUT...SUSTAINED WIND SPEEDS AT THE SURFACE TODAY SHOULD MAINTAIN
PRIMARILY A SOUTHERLY OR JUST EAST OF SOUTH (160-180 DEGREES)
DIRECTION BETWEEN 15 AND 20 MPH WITH HIGHER GUSTS EXPECTED
THROUGHOUT THE DAY AS HIGH AS 30 TO 35 MPH AT TIMES. THE SOUTH
WINDS ARE DRAWING HIGHER DEWPOINT AIR UP INTO THE REGION
TODAY...SO SEEING RELATIVE HUMIDITY BOTTOM OUT BELOW 50 PERCENT
MAY PROVE CHALLENGING TODAY. ALSO...THROUGH EARLY
AFTERNOON...THERE IS A RATHER LOW PROBABILITY CHANCE (TOO LOW TO
MENTION IN THE TABULAR BODY OF THE SPOT FORECAST) OF AN ISOLATED
SHOWER OR THUNDERSTORM DEVELOPING IN THE BURN VICINITY WHILE THIS
LOW LEVEL MOISTURE IS MOVING NORTHWARD INTO THE REGION TODAY.
FINALLY...BY LATE IN THE MORNING ON FRIDAY A COLD FRONT IS
FORECAST TO PASS THROUGH THE BURN SITE SWITCHING WINDS AROUND TO A
WEST-NORTHWEST DIRECTION.

.TODAY...
SKY/WEATHER.........SUNNY (20-30 PERCENT CLOUD).
MAX TEMPERATURE.....78-83.
MIN HUMIDITY........51-56 PERCENT.
WIND (20 FT)........SOUTH WINDS 10 TO 20 MPH WITH GUSTS TO AROUND
                    30 MPH.
MIXING HEIGHT.......300 FT AGL UNTIL 1000. 3200-3900 FT AGL AFTER
                    1300.
TRANSPORT WINDS.....SOUTHEAST 14 TO 19 MPH UNTIL 1000...THEN SOUTH
                    26 TO 31 MPH.
SMOKE DISPERSAL.....POOR (24000-34000) UNTIL 1300...THEN GOOD
                    (83500-94400).
CWR.................ZERO.

TIME (CDT)      9 AM   11 AM  1 PM   3 PM   5 PM
SKY (%).........35     35     34     34     33
WEATHER COV.....
WEATHER TYPE....NONE   NONE   NONE   NONE   NONE
TEMP............56     66     75     79     80
RH..............86     72     61     55     54
20 FT WIND......E 8    S 15   S 17   S 18   S 17
20 FT WIND GUST.15     25     25     30     25

.TONIGHT...
SKY/WEATHER.........PARTLY CLOUDY (35-45 PERCENT CLOUD) UNTIL
                    2400...THEN MOSTLY CLOUDY (55-65 PERCENT
                    CLOUD). A SLIGHT CHANCE OF SHOWERS AND
                    THUNDERSTORMS AFTER 0100.
MIN TEMPERATURE.....58-63.
MAX HUMIDITY........93-98 PERCENT.
WIND (20 FT)........SOUTH WINDS 7 TO 17 MPH. GUSTS UP TO 25 MPH IN
                    THE EVENING. GUSTY AND ERRATIC WINDS EXPECTED
                    NEAR THUNDERSTORMS AFTER 0100.
MIXING HEIGHT.......300 FT AGL.
TRANSPORT WINDS.....SOUTH 29 TO 36 MPH UNTIL 0100. 16 TO 21 MPH
                    AFTER 0400.
SMOKE DISPERSAL.....POOR (4100-7200).
CWR.................ZERO.

TIME (CDT)      7 PM   9 PM   11 PM  1 AM   3 AM   5 AM
SKY (%).........32     40     49     56     59     62
WEATHER COV.....                     S CHC  S CHC  S CHC
WEATHER TYPE....NONE   NONE   NONE   RNSHWR RNSHWR RNSHWR
TEMP............76     70     67     65     63     61
RH..............61     74     83     86     90     96
20 FT WIND......S 15   S 14   S 12   S 11   S 9    S 7
20 FT WIND GUST.25     20     20     20     15     10

.FRIDAY...
SKY/WEATHER.........PARTLY SUNNY (50-60 PERCENT CLOUD).
MAX TEMPERATURE.....80-85.
MIN HUMIDITY........42-47 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 5 TO 8 MPH UNTIL 1100...THEN
                    WEST 5 TO 10 MPH. GUSTY AND ERRATIC WINDS
                    EXPECTED NEAR THUNDERSTORMS.
MIXING HEIGHT.......300 FT AGL UNTIL 1000. 3000 FT AGL AFTER 1600.
TRANSPORT WINDS.....SOUTH 13 TO 18 MPH UNTIL 1000...THEN WEST 8 TO
                    16 MPH.
SMOKE DISPERSAL.....POOR (23100-33100).
CWR.................ZERO.

TIME (CDT)      7 AM   9 AM   11 AM  1 PM   3 PM   5 PM
SKY (%).........65     63     60     58     54     48
WEATHER COV.....S CHC  S CHC  S CHC  S CHC  S CHC  S CHC
WEATHER TYPE....RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR
TEMP............60     64     71     78     82     82
RH..............97     88     70     55     46     44
20 FT WIND......S 6    S 6    W 7    NW 8   NW 9   W 9
20 FT WIND GUST.10     10     10     10     15     15

$$
FORECASTER...DORN
REQUESTED BY...JEFF CASEY
TYPE OF REQUEST...PRESCRIBED
.TAG 20140918.COMMU.01/ABR






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