915  
FNUS73 KABR 141151  
FWSABR  
 
SPOT FORECAST FOR NUMBER TWO RX...US FISH AND WILDLIFE SERVICE  
NATIONAL WEATHER SERVICE ABERDEEN SD  
651 AM CDT SUN APR 14 2024  
 
FORECAST IS BASED ON IGNITION TIME OF 0000 CDT ON APRIL 14.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
   
DISCUSSION
 
 
NO MAJOR CHANGES TO THE FORECAST. HIGH PRESSURE OVERHEAD WILL  
GRADUALLY SHIFT EAST, WHICH WILL CAUSE WINDS TO SHIFT FROM  
NORTHERLY TO NORTHEAST AND THEN TO SOUTHEASTERLY. WITH HIGH  
PRESSURE, EXPECT ANOTHER MILD DAY WITH AFTERNOON HUMIDITY IN THE  
20 TO 25 PERCENT RANGE. INCREASING MOISTURE FOR MONDAY BRINGS WITH  
IT THE CHANCE FOR SCATTERED COVERAGE OF SHOWERS AND WEAK  
THUNDERSTORMS.  
 
   
TODAY
 
 
SKY/WEATHER.........SUNNY (0-10 PERCENT).  
CWR.................0 PERCENT.  
CHANCE OF PCPN......0 PERCENT.  
LAL.................1.  
MAX TEMPERATURE.....AROUND 78.  
MIN HUMIDITY........24 PERCENT.  
WIND (20 FT)........NORTHWEST WINDS AROUND 5 MPH EARLY IN THE  
MORNING BECOMING LIGHT, THEN BECOMING NORTHEAST  
6 TO 9 MPH EARLY IN THE MORNING SHIFTING TO THE  
EAST 9 TO 14 MPH.  
MIXING HEIGHT.......400-5300 FT AGL.  
TRANSPORT WINDS.....NORTHEAST 9 TO 14 MPH SHIFTING TO THE EAST 12  
TO 15 MPH IN THE LATE MORNING AND AFTERNOON.  
SMOKE DISPERSAL.....POOR (3300 KNOT-FT) EARLY IN THE MORNING  
INCREASING TO GOOD (68500 KNOT-FT) IN THE  
AFTERNOON.  
HAINES INDEX........5 (MODERATE).  
 
TIME (CDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY (%).........3 3 4 4 4 5 4 4 4 4 4 4  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........  
CHC OF PCPN (%).0 0 0 0 0 0 0 0 0 0 0 0  
TEMP............48 46 48 52 58 65 68 72 75 77 78 78  
RH..............60 65 58 50 44 38 33 28 26 24 24 25  
20 FT WIND DIR..NW VRB NE NE E E E E E E SE SE  
20 FT WIND SPD..5 3 6 8 9 9 10 12 12 12 12 14  
20 FT WIND GUST.8 8 10 15 16 14 13 13 14 14 16 17  
SMOKE DISPERSAL.PR PR PR PR PR PR PR PR FR FR GD GD  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR (15-25 PERCENT) THEN BECOMING  
MOSTLY CLOUDY (45-55 PERCENT). SLIGHT CHANCE OF  
RAIN SHOWERS EARLY IN THE MORNING.  
CWR.................5 PERCENT.  
CHANCE OF PCPN......20 PERCENT.  
LAL.................1.  
MIN TEMPERATURE.....AROUND 51.  
MAX HUMIDITY........57 PERCENT.  
WIND (20 FT)........SOUTHEAST WINDS 14 TO 22 MPH. GUSTS UP TO 35  
MPH.  
MIXING HEIGHT.......500-5000 FT AGL.  
TRANSPORT WINDS.....SOUTHEAST 16 TO 23 MPH INCREASING TO 24 TO 26  
MPH OVERNIGHT.  
SMOKE DISPERSAL.....GOOD (80000 KNOT-FT) EARLY IN THE EVENING  
DECREASING TO POOR (8200 KNOT-FT) LATE IN THE  
NIGHT.  
HAINES INDEX........5 (MODERATE).  
 
TIME (CDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM  
SKY (%).........4 4 3 6 8 10 15 21 26 29 33 51  
WEATHER COV..... SCH  
WEATHER TYPE.... RW  
TSTM COV........  
CHC OF PCPN (%).0 0 0 0 0 0 0 0 10 10 10 20  
TEMP............78 77 72 68 65 62 61 59 57 56 55 54  
RH..............25 25 30 34 37 41 42 47 51 53 53 54  
20 FT WIND DIR..SE SE SE SE SE SE SE SE SE SE SE SE  
20 FT WIND SPD..15 15 14 16 18 21 21 22 22 21 20 20  
20 FT WIND GUST.18 20 22 26 30 32 35 35 35 33 31 29  
SMOKE DISPERSAL.GD GD PR PR PR PR PR PR PR PR PR PR  
   
MONDAY
 
 
SKY/WEATHER.........PARTLY SUNNY (45-55 PERCENT). CHANCE OF RAIN  
SHOWERS THROUGH THE DAY. SLIGHT CHANCE OF  
THUNDERSTORMS IN THE AFTERNOON.  
CWR.................13 PERCENT.  
CHANCE OF PCPN......30 PERCENT.  
LAL.................1 UNTIL 1600, THEN 2.  
MAX TEMPERATURE.....AROUND 80.  
MIN HUMIDITY........30 PERCENT.  
WIND (20 FT)........BREEZY. SOUTHEAST WINDS 15 TO 23 MPH INCREASING  
TO 25 TO 29 MPH WITH GUSTS TO AROUND 40 MPH IN  
THE AFTERNOON. GUSTY AND ERRATIC WINDS EXPECTED  
NEAR THUNDERSTORMS LATE IN THE AFTERNOON.  
MIXING HEIGHT.......600-4200 FT AGL.  
TRANSPORT WINDS.....SOUTHEAST 22 TO 31 MPH INCREASING TO 32 TO 38  
MPH LATE IN THE MORNING.  
SMOKE DISPERSAL.....POOR (10700 KNOT-FT) EARLY IN THE MORNING  
INCREASING TO GOOD (88700 KNOT-FT) IN THE  
AFTERNOON INCREASING TO VERY GOOD (112600  
KNOT-FT) LATE IN THE AFTERNOON.  
HAINES INDEX........4 TO 5 OR (LOW) TO (MODERATE).  
 
TIME (CDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY (%).........59 64 69 65 60 56 49 43 37 34 31 28  
WEATHER COV.....SCH CHC CHC CHC CHC SCH SCH SCH SCH SCH SCH CHC  
WEATHER TYPE....RW RW RW RW RW RW RW RW RW RW RW RW  
TSTM COV........ SCH SCH  
CHC OF PCPN (%).20 30 30 30 30 20 20 20 20 20 20 30  
TEMP............54 54 54 56 59 65 68 74 77 79 80 79  
RH..............57 54 50 48 47 39 36 32 30 30 30 31  
20 FT WIND DIR..SE SE SE SE SE SE SE SE SE SE SE SE  
20 FT WIND SPD..17 15 17 20 22 22 23 25 26 28 29 29  
20 FT WIND GUST.25 24 26 30 31 31 31 32 33 36 37 40  
SMOKE DISPERSAL.PR PR PR PR FR GD GD GD VGD VGD VGD VGD  
 

 
FORECASTER...SERR  
REQUESTED BY...ENGEBRETSON  
TYPE OF REQUEST...PRESCRIBED  
.TAG 2410679.1/ABR  
.DELDT 04/14/24  
.FORMATTERVERSION 2.0.0  
.EMAIL STEPHEN.ENGEBRETSON@USDA.GOV  
 
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