259
FNUS73 KFGF 161101
FWSFGF
SPOT FORECAST FOR SOUTH TWIN PILE RX...USFS
NATIONAL WEATHER SERVICE GRAND FORKS ND
501 AM CST TUE DEC 16 2025
FORECAST IS BASED ON IGNITION TIME OF 0800 CST ON DECEMBER 16.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE.
PLEASE CALL THE NWS IN GRAND FORKS AT 701-795-5127 FOR ADDITIONAL
INFORMATION AND MONITOR OUR WEBSITE (WWW.WEATHER.GOV/FGF) OR NOAA
ALL-HAZARDS RADIO FOR THE LATEST UPDATES.
...WIND ADVISORY IN EFFECT FROM NOON TODAY TO 6 PM CST THIS
EVENING...
DISCUSSION
SOUTH WIND TO START TODAY AT DAWN 5 TO 10 MPH BUT WILL SHIFT TO
MORE SOUTHWEST MID THRU LATE MORNING AND MORE WESTERLY THIS
AFTERNOON. SUSTAINED WIND SPEEDS 10-20 MPH FOR MOST OF THE PERIOD,
THOUGH MID AFTERNOON SUSTAINED WINDS TO 25 MPH. GUSTS THIS
AFTERNOON 35 TO 40 MPH. TEMPERATURES PEAKING MID AFTERNOON
NEAR 40 THEN FALLING LATE DAY.
REST OF TODAY
SKY/WEATHER.........MOSTLY SUNNY (20-30 PERCENT) THEN BECOMING
MOSTLY CLOUDY (75-85 PERCENT).
MAX TEMPERATURE.....AROUND 44.
MIN HUMIDITY........76 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 10-15 SHIFTING TO THE
WEST 20-25 MPH IN THE AFTERNOON. GUSTS UP TO 36 MPH.
MIXING HEIGHT.......1800 FT AGL.
MIXING WINDS........WEST 15 TO 20 MPH INCREASING TO 25 TO 30 MPH IN
THE AFTERNOON.
SMOKE DISPERSAL.....9200 KNOT-FT EARLY IN THE MORNING INCREASING TO
47800 KNOT-FT IN THE AFTERNOON.
TIME (CST) 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........46 42 23 9 7 39 25 73 85 86
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
TEMP............33 36 40 42 44 44 43 42 39 36
RH..............84 85 79 79 76 76 76 76 79 82
20 FT WIND DIR..SW SW SW W W W W W W W
20 FT WIND SPD..10 10 10 10 10 10 15 10 15 15
20 FT WIND GUST.26 26 27 27 28 29 30 30 32 32
MIX HGT (KFT)...0.7 0.8 0.9 1.2 1.5 1.6 1.8 1.8 1.8 1.6
MIXING WIND DIR.SW W W W W W W W W NW
MIXING WIND SPD.15 15 20 20 25 30 30 30 30 30
VRATE KT-FT/1K..9 11 15 21 31 39 47 48 48 40
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (65-75 PERCENT) THEN BECOMING
PARTLY CLOUDY (30-40 PERCENT).
MIN TEMPERATURE.....AROUND 7 ABOVE.
MAX HUMIDITY........100 PERCENT.
WIND (20 FT)........NORTHWEST WINDS 5 TO 10 MPH WITH GUSTS TO
AROUND 30 MPH IN THE EVENING AND OVERNIGHT
BECOMING LIGHT.
MIXING HEIGHT.......500 FT AGL.
MIXING WINDS........NORTHWEST 25 TO 30 MPH DECREASING TO 15 TO 20
MPH OVERNIGHT, THEN SHIFTING TO THE WEST AROUND
10 MPH AFTER 3 AM SHIFTING TO THE SOUTHWEST
EARLY IN THE MORNING.
SMOKE DISPERSAL.....51200 KNOT-FT EARLY IN THE EVENING DECREASING
TO 3500 KNOT-FT LATE IN THE NIGHT.
TIME (CST) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........87 82 79 82 56 50 34 34 35 33 31 24
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
TEMP............32 28 25 21 19 15 13 12 9 11 10 9
RH..............85 81 81 84 80 88 91 91 100 91 91 96
20 FT WIND DIR..NW NW NW NW NW NW NW W W W SW SW
20 FT WIND SPD..10 10 10 10 10 5 5 5 5 0 0 0
20 FT WIND GUST.30 29 27 23 21 18 16 14 12 9 9 8
MIX HGT (KFT)...2.0 1.7 1.4 1.4 1.5 1.4 1.3 1.1 0.9 0.9 0.7 0.5
MIXING WIND DIR.NW NW NW NW NW NW NW NW NW W W SW
MIXING WIND SPD.30 30 25 30 25 25 20 15 15 10 10 10
VRATE KT-FT/1K..51 42 31 34 33 29 22 14 11 9 5 4
WEDNESDAY
SKY/WEATHER.........MOSTLY SUNNY (35-45 PERCENT) THEN BECOMING
MOSTLY CLOUDY (75-85 PERCENT).
MAX TEMPERATURE.....AROUND 34.
MIN HUMIDITY........78 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING SOUTH 5 TO 10 MPH WITH
GUSTS TO AROUND 25 MPH EARLY IN THE MORNING.
MIXING HEIGHT.......1400 FT AGL.
MIXING WINDS........SOUTH 10 TO 15 MPH INCREASING TO 20 TO 25 MPH
IN THE AFTERNOON.
SMOKE DISPERSAL.....2800 KNOT-FT EARLY IN THE MORNING INCREASING TO
31400 KNOT-FT IN THE AFTERNOON.
TIME (CST) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........20 38 33 42 51 63 75 79 82 86 85 84
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
TEMP............10 11 12 15 19 22 25 27 29 30 31 32
RH..............87 87 87 88 84 84 81 81 78 78 78 78
20 FT WIND DIR..S S S S S S S S S S S S
20 FT WIND SPD..0 0 5 5 5 5 10 10 10 10 10 10
20 FT WIND GUST.8 11 13 14 15 19 20 21 22 23 23 25
MIX HGT (KFT)...0.4 0.4 0.4 0.5 0.7 0.9 1.0 1.1 1.3 1.4 1.2 1.1
MIXING WIND DIR.S S S S S S S S S S S S
MIXING WIND SPD.10 10 10 15 15 15 20 25 25 25 25 25
VRATE KT-FT/1K..3 3 4 6 8 13 18 22 27 31 27 22
FORECASTER...DR
REQUESTED BY...JOE KAUFMANN
TYPE OF REQUEST...PRESCRIBED
.TAG 2527733.0/FGF
.DELDT 12/15/25
.FORMATTERVERSION 2.0.0
.EMAIL JOSEPH.KAUFMANN@USDA.GOV
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