991
FNUS73 KBIS 231149
FWSBIS
SPOT FORECAST FOR WEST ARROWWOOD LAKE...US FWS
NATIONAL WEATHER SERVICE BISMARCK ND
649 AM CDT WED APR 23 2025
FORECAST IS BASED ON IGNITION TIME OF 0700 CDT ON APRIL 23.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
LOOK FOR CLOUDY SKIES BECOMING PARTLY CLOUDY ACROSS THE FIRE AREA TODAY,
WITH HIGHS IN THE MID 50S AND AFTERNOON HUMIDITY VALUES NEAR 50 PERCENT.
A STEADY NORTHWEST WIND CAN ALSO BE EXPECTED TODAY. PARTLY CLOUDY SKIES CONTINUE FOR
TONIGHT. HUMIDITY WILL RECOVER TO NEAR 90 PERCENT TONIGHT, WHILE NORTHWEST
WINDS BECOME NORTH NORTHEASTERLY AND LIGHT. THURSDAY THEN SEES A SLIGHT CHANCE OF RAIN
SHOWERS IN THE AFTERNOON. A STEADY EAST NORTHEAST WIND MAY ALSO BE FOUND ON THURSDAY,
WHILE AFTERNOON HUMIDITY VALUES REMAIN NEAR 50 PERCENT. WINDS BECOME MORE NORTHERLY
THURSDAY NIGHT, WITH CHANCES FOR PRECIPITATION DIMINISHING. CLOUDY SKIES COULD RESULT IN
GOOD/FAIR SMOKE DISPERSION TODAY AND TONIGHT, PERHAPS LOWERING TO POOR ON THURSDAY.
REST OF TODAY
SKY/WEATHER.........CLOUDY THEN BECOMING PARTLY CLOUDY.
CWR.................0 PERCENT.
CHANCE OF PCPN......0 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....AROUND 53.
MIN HUMIDITY........48 PERCENT.
WIND (20 FT)........NORTHWEST WINDS 10 TO 18 MPH WITH A FEW HIGHER GUSTS
IN THE MORNING AND EARLY AFTERNOON.
MIXING HEIGHT.......5100 FT AGL.
TRANSPORT WINDS.....NORTHWEST 15 TO 25 MPH DECREASING TO 12 TO 22
MPH LATE IN THE AFTERNOON. A FEW HIGHER GUSTS POSSIBLE.
SMOKE DISPERSAL.....POOR (35700 KNOT-FT) EARLY IN THE MORNING
INCREASING TO GOOD (62700 KNOT-FT) IN THE
AFTERNOON.
TIME (CDT) 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........77 86 92 94 91 89 61 34 31 44 44
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0
CHC OF PCPN (%).0 0 0 0 0 0 0 0 0 0 0
CHC OF THDR (%).0 0 0 0 0 0 0 0 0 0 0
TEMP............37 39 40 41 42 44 46 49 50 51 52
RH..............70 67 67 67 67 62 60 54 52 52 48
20 FT WIND DIR..W W NW NW NW NW NW NW NW NW NW
20 FT WIND SPD..12 13 14 14 14 14 14 13 12 12 11
20 FT WIND GUST.19 20 20 20 20 20 20 20 19 17 15
MIX HGT (KFT)...1.8 2.5 2.7 3.0 3.0 3.4 3.8 4.4 4.8 5.0 5.1
TRANSP WIND DIR.W NW NW NW NW NW NW NW NW NW NW
TRANSP WIND SPD.23 24 24 24 23 21 18 16 14 14 13
DISPR KT-FT/1K..36 53 58 63 60 62 61 62 57 61 56
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY.
CWR.................0 PERCENT.
CHANCE OF PCPN......0 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....AROUND 34.
MAX HUMIDITY........96 PERCENT.
WIND (20 FT)........NORTH NORTHEAST WINDS 5 TO 10 MPH SHIFTING TO THE
EAST AROUND 5 MPH AFTER 0100.
MIXING HEIGHT.......400 FT AGL.
TRANSPORT WINDS.....NORTHEAST TO SOUTHEAST 5 TO 10 MPH.
SMOKE DISPERSAL.....FAIR (44300 KNOT-FT) EARLY IN THE EVENING
DECREASING TO POOR (1800 KNOT-FT) LATE IN THE
NIGHT.
TIME (CDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........49 50 65 68 67 64 35 48 36 35 36 34
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
CHC OF PCPN (%).0 0 0 0 0 0 0 0 0 0 0 0
CHC OF THDR (%).0 0 0 0 0 0 0 0 0 0 0 0
TEMP............52 50 48 46 44 43 41 39 38 37 36 35
RH..............48 52 58 63 68 70 76 82 85 89 92 92
20 FT WIND DIR..N N N N N NE NE NE NE E E E
20 FT WIND SPD..9 9 7 6 5 5 5 5 4 4 3 3
20 FT WIND GUST.14 13 11 10 9 8 7 7 6 6 6 5
MIX HGT (KFT)...4.9 4.7 3.3 1.4 1.0 0.5 0.4 0.4 0.4 0.4 0.4 0.4
TRANSP WIND DIR.N N N N NE NE NE NE NE E E SE
TRANSP WIND SPD.10 10 9 8 8 7 8 8 7 6 6 7
DISPR KT-FT/1K..44 42 26 10 7 3 3 3 2 2 2 2
THURSDAY
SKY/WEATHER.........PARTLY TO MOSTLY CLOUDY.
CWR.................5 PERCENT.
CHANCE OF PCPN......15 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....AROUND 55.
MIN HUMIDITY........48 PERCENT.
WIND (20 FT)........EAST NORTHEAST 5 TO 10 MPH.
MIXING HEIGHT.......4700 FT AGL.
TRANSPORT WINDS.....EAST NORTHEAST 6 TO 12 MPH.
SMOKE DISPERSAL.....POOR (2500 KNOT-FT).
TIME (CDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........44 44 54 38 59 72 72 72 71 71 70 72
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
CHC OF PCPN (%).0 10 10 10 10 10 10 10 10 10 10 10
CHC OF THDR (%).0 0 0 0 0 0 0 0 0 0 0 0
TEMP............34 34 37 41 45 47 49 51 52 54 54 54
RH..............92 96 89 79 70 68 61 54 51 49 48 48
20 FT WIND DIR..E E E E E E E NE NE NE NE NE
20 FT WIND SPD..3 3 3 4 5 5 6 6 7 7 8 8
20 FT WIND GUST.5 6 6 7 8 9 9 10 11 11 12 12
MIX HGT (KFT)...0.4 0.4 0.7 1.4 2.5 3.2 3.9 4.6 4.7 4.7 4.7 4.6
TRANSP WIND DIR.SE SE SE SE E E E NE NE N N N
TRANSP WIND SPD.8 8 7 7 7 6 6 7 8 8 9 9
DISPR KT-FT/1K..3 3 4 9 15 16 20 28 31 35 38 38
FORECASTER...ANGLIN
REQUESTED BY...JEFF DION
TYPE OF REQUEST...PRESCRIBED
.TAG 2511477.0/BIS
.DELDT 04/23/25
.FORMATTERVERSION 2.0.0
.EMAIL JEFF_DIOIN@FWS.GOV
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