FNUS73 KABR 281228
FWSABR

SPOT FORECAST FOR SCHAFER HOFFMAN...US FISH AND WILDLIFE SERVICE
NATIONAL WEATHER SERVICE ABERDEEN SD
728 AM CDT THU MAY 28 2009

FORECAST IS BASED ON IGNITION TIME OF 1100 CDT ON MAY 28.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
AS A WARM FRONT PUSHES THROUGH THE BURN SITE THIS
MORNING...SURFACE WINDS SHOULD TAKE ON A PREDOMINANTLY WESTERLY
DIRECTION UNTIL A COLD FRONT WORKS INTO THE NORTHERN TIER COUNTIES
OF SOUTH DAKOTA LATE THIS AFTERNOON INTO THIS EVENING. BEHIND THE
COLD FRONTAL PASSAGE WINDS SHOULD SHIFT TO MORE OF A NORTH
DIRECTION. WIND SPEEDS ARE NOT EXPECTED MUCH ABOVE 10 TO 15 MPH
TODAY. MINIMUM RELATIVE HUMIDITIES WILL LIKELY DROP OFF TO 3O TO
35 PERCENT DURING PEAK HEATING THIS AFTERNOON...AND WITH THE LOW
LEVEL AIRMASS BEING RELATIVELY DRY...IF ANY WEAK...HIGH-BASED
ISOLATED SHOWERS OR THUNDERSTORMS DO DEVELOP THEY SHOULD NOT
PRODUCE MUCH IN THE WAY OF PRECIPITATION.


.TODAY...
SKY/WEATHER.........MOSTLY SUNNY (30-40 PERCENT CLOUD). A SLIGHT
                    CHANCE OF SHOWERS AND THUNDERSTORMS AFTER 1300.
MAX TEMPERATURE.....79-84.
MIN HUMIDITY........33-38 PERCENT.
WIND (20 FT)........WEST WINDS 5 TO 9 MPH BECOMING NORTH IN THE
                    AFTERNOON. GUSTY AND ERRATIC WINDS EXPECTED
                    NEAR THUNDERSTORMS AFTER 1300.
HAINES INDEX........5 OR MODERATE.
MIXING HEIGHT.......400 FT AGL UNTIL 1300...THEN 9900 FT AGL.
TRANSPORT WINDS.....NORTHWEST 12 TO 17 MPH.
SMOKE DISPERSAL.....5300-5500 UNTIL 1300...THEN 110000-110800.
CWR.................ZERO.
LAL.................2.

TIME (CDT)      11 AM  1 PM   3 PM   5 PM
SKY (%).........25     20     40     56
WEATHER COV.....       S CHC  S CHC  S CHC
WEATHER TYPE....NONE   RNSHWR RNSHWR RNSHWR
TEMP............69     75     78     79
RH..............45     40     37     37
20 FT WIND......W 5    NW 7   NW 8   N 8
20 FT WIND GUST.       10     10     10

.TONIGHT...
SKY/WEATHER.........MOSTLY CLOUDY (55-65 PERCENT CLOUD) UNTIL
                    2400...THEN PARTLY CLOUDY (40-50 PERCENT
                    CLOUD). A SLIGHT CHANCE OF SHOWERS AND
                    THUNDERSTORMS UNTIL 0100.
MIN TEMPERATURE.....47-52.
MAX HUMIDITY........76-81 PERCENT.
WIND (20 FT)........NORTHEAST WINDS 5 TO 8 MPH. GUSTY AND ERRATIC
                    WINDS EXPECTED NEAR THUNDERSTORMS UNTIL 0100.
HAINES INDEX........5 OR MODERATE.
MIXING HEIGHT.......300-600 FT AGL.
TRANSPORT WINDS.....NORTHEAST 15 TO 20 MPH.
SMOKE DISPERSAL.....3800-7500.
CWR.................LESS THAN 10 PERCENT.
LAL.................2.

TIME (CDT)      7 PM   9 PM   11 PM  1 AM   3 AM   5 AM
SKY (%).........68     62     52     47     44     41
WEATHER COV.....S CHC  S CHC  S CHC
WEATHER TYPE....RNSHWR RNSHWR RNSHWR NONE   NONE   NONE
TEMP............78     69     62     58     55     53
RH..............36     48     61     71     78     81
20 FT WIND......NE 7   NE 7   NE 7   NE 6   NE 5   NE 5
20 FT WIND GUST.10     10     10

.FRIDAY...
SKY/WEATHER.........MOSTLY SUNNY (40-50 PERCENT CLOUD).
MAX TEMPERATURE.....75-80.
MIN HUMIDITY........35-40 PERCENT.
WIND (20 FT)........NORTHWEST WINDS AROUND 6 MPH UNTIL 1200...THEN
                    5 TO 10 MPH.
HAINES INDEX........5 OR MODERATE.

TIME (CDT)      7 AM   9 AM   11 AM  1 PM   3 PM   5 PM
SKY (%).........38     38     37     37     43     50
WEATHER COV.....
WEATHER TYPE....NONE   NONE   NONE   NONE   NONE   NONE
TEMP............52     60     67     72     75     76
RH..............80     62     50     44     39     37
20 FT WIND......NE 5   N 5    NW 5   W 6    W 7    NW 9
20 FT WIND GUST.                            10     10

$$
FORECASTER...DORN
REQUESTED BY...FIRE MANAGEMENT OFFICER
TYPE OF REQUEST...PRESCRIBED
.TAG 20090528.SCHAF.01/ABR