458
FNUS73 KUNR 121155
FWSUNR
SPOT FORECAST FOR 79 FIRE...SD WILDLAND FIRE
NATIONAL WEATHER SERVICE RAPID CITY SD
555 AM MDT SUN APR 12 2026
FORECAST IS BASED ON FORECAST START TIME OF 0700 MDT ON APRIL 12.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE.
..RED FLAG WARNING IN EFFECT UNTIL 9 PM MDT THIS EVENING
DISCUSSION
UNSEASONABLY WARM AND DRY CONDITIONS WILL CONTINUE
TODAY THROUGH MONDAY. FOR TODAY, THE RELATIVE HUMIDITY WILL FALL
BACK TO 10 TO 15 PERCENT THIS AFTERNOON WITH HIGHS CLIMBING INTO
THE UPPER 70S. SURFACE WINDS WILL BE WESTERLY AT 8 TO 14 MPH WITH
GUSTS TO 25 MPH. RECOVERY TONIGHT WILL BE POOR. AN ISOLATED
SPRINKLE IS POSSIBLE THIS EVENING, WITH ERRATIC WINDS AND LITTLE
MOISTURE. MONDAY'S WEATHER WILL BE SIMILAR TO TODAY, WITH THE
EXCEPTION OF WINDS. WINDS WILL INCREASE MID MORNING 18 TO 26 MPH
WITH GUSTS TO 42 MPH. AGAIN, AN ISOLATED SHOWER WILL BE POSSIBLE,
WITH LITTLE MOISTURE EXPECTED. COOLER AND LESS BREEZY CONDITIONS
ARE EXPECTED ON TUESDAY WITH SLIGHTLY BETTER RH RECOVERY TUESDAY
NIGHT.
TODAY
SKY/WEATHER.........SUNNY (15-25 PERCENT).
MAX TEMPERATURE.....AROUND 80.
MIN HUMIDITY........13 PERCENT.
WIND (20 FT)........WEST WINDS 10 TO 15 MPH WITH GUSTS TO AROUND 28
MPH.
CWR.................0 PERCENT.
MIXING HEIGHT.......9100 TO 9600 FT AGL INCREASING TO 11800 TO
12300 FT AGL LATE IN THE AFTERNOON.
TRANSPORT WINDS.....WEST 25 TO 30 MPH.
SMOKE DISPERSAL.....GOOD INCREASING TO EXCELLENT.
TIME (MDT) 7 AM 9 AM 11 AM 1 PM 3 PM 5 PM
SKY (%).........24 24 21 12 12 25
WEATHER COV.....
WEATHER TYPE....NONE NONE NONE NONE NONE NONE
TSTM COV........
CWR.............0 0 0 0 0 0
TEMP............53 60 68 74 78 76
RH..............42 35 26 19 14 14
20 FT WIND......W 12 W 13 W 14 W 14 W 14 W 10
20 FT WIND GUST.22 23 25 28 25 20
MIX HGT (FT)....600 2300 5800 8000 12300 11200
TRANSPORT WIND..W 21 W 25 W 26 W 28 W 29 W 25
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (35-45 PERCENT) THEN BECOMING
MOSTLY CLOUDY (60-70 PERCENT) THEN BECOMING
PARTLY CLOUDY (35-45 PERCENT). ISOLATED
RAIN SHOWERS IN THE EVENING.
MIN TEMPERATURE.....AROUND 45.
MAX HUMIDITY........54 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS AROUND 10 MPH SHIFTING TO THE
NORTH LATE IN THE EVENING, THEN BECOMING NORTH
AROUND 10 MPH LATE IN THE EVENING SHIFTING TO
THE WEST OVERNIGHT. GUSTS UP TO 15 MPH.
CWR.................0 PERCENT.
MIXING HEIGHT.......500 TO 1000 FT AGL.
TRANSPORT WINDS.....WEST 20 TO 25 MPH SHIFTING TO THE NORTH 10 TO
15 MPH EARLY IN THE EVENING, THEN SHIFTING TO
THE WEST OVERNIGHT.
SMOKE DISPERSAL.....EXCELLENT DECREASING TO POOR.
TIME (MDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM
SKY (%).........39 31 63 72 64 40
WEATHER COV.....S CHC S CHC S CHC
WEATHER TYPE....RNSHWR RNSHWR RNSHWR NONE NONE NONE
TSTM COV........
CWR.............0 0 0 0 0 0
TEMP............75 65 59 55 52 48
RH..............14 21 32 41 44 49
20 FT WIND......SW 9 W 6 N 6 N 6 W 6 SW 7
20 FT WIND GUST.17 12 12 12 12 14
MIX HGT (FT)....10400 800 500 500 500 500
TRANSPORT WIND..W 23 N 14 N 9 NW 10 W 10 W 12
MONDAY
SKY/WEATHER.........SUNNY (15-25 PERCENT). SLIGHT CHANCE OF RAIN
SHOWERS IN THE AFTERNOON.
MAX TEMPERATURE.....AROUND 73.
MIN HUMIDITY........13 PERCENT.
WIND (20 FT)........BREEZY. WEST WINDS 10 TO 20 MPH WITH GUSTS TO
AROUND 30 MPH INCREASING TO 25 TO 30 MPH WITH
GUSTS TO AROUND 42 MPH IN THE LATE MORNING AND
AFTERNOON.
CWR.................0 PERCENT.
MIXING HEIGHT.......10000 TO 10500 FT AGL INCREASING TO 11000 TO
11500 FT AGL LATE IN THE AFTERNOON.
TIME (MDT) 6 AM 8 AM 10 AM NOON 2 PM 4 PM
SKY (%).........35 13 10 8 9 13
WEATHER COV..... S CHC S CHC S CHC
WEATHER TYPE....NONE NONE NONE RNSHWR RNSHWR RNSHWR
TSTM COV........
CWR.............0 0 0 0 0 0
TEMP............46 53 63 70 73 73
RH..............54 38 25 18 14 13
20 FT WIND......SW 9 W 15 W 22 W 26 W 26 W 24
20 FT WIND GUST.17 26 36 40 40 39
MIX HGT (FT)....500 2400 5000 8400 10500 10700
FORECASTER...SR
REQUESTED BY...ROGER JACKSON
TYPE OF REQUEST...WILDFIRE
.TAG 2610082.1/UNR
.DELDT 04/12/26
.FORMATTERVERSION 2.0.0
.EMAIL ROGER_JACKSON@FIRENET.GOV
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