511
FNUS73 KBIS 092228
FWSBIS

Spot Forecast for Phonerequest...Bismarck Rural Fire
National Weather Service Bismarck ND
528 PM CDT Sat May 9 2026

Forecast is based on ignition time of 1800 CDT on May 09.
If conditions become unrepresentative, contact the National Weather
Service.

.DISCUSSION...

Surface high pressure will build into the region tonight. Winds
will taper off and the sky will clear.


.TONIGHT...

Sky/weather.........Mostly clear. Widespread frost early in the morning.
CWR.................0 percent.
Chance of pcpn......0 percent.
Chance of thunder...0 percent.
Min temperature.....Around 32.
Max humidity........78 percent.
Wind (20 ft)........North winds 5 to 8 mph with gusts to around 20
                    mph in the evening becoming light late.
Mixing height.......300 ft AGL.
Transport winds.....Northwest 15 to 23 mph shifting to the north 6
                    to 13 mph in the late evening and overnight,
                    then shifting to the northeast 6 to 7 mph after
                    3 am.
Smoke dispersal.....Excellent (152400 knot-ft) early in the evening
                    decreasing to poor (1400 knot-ft)
                    early in the evening.

TIME (CDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........12  16  17  12  13  24  42  45  37  54  27  20
Weather cov.....                                        ARS WID
Weather type....                                        FST FST
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............60  60  58  54  48  45  43  40  39  37  35  34
RH..............23  21  23  30  39  45  51  57  59  64  69  72
20 FT wind dir..NW  NW  N   N   N   N   N   N   N   N   N   N
20 FT wind spd..8   8   8   8   6   6   6   5   4   4   5   5
20 FT wind gust.20  20  18  14  11  10  10  9   8   7   8   8
Mix hgt (kft)...7.6 7.4 1.6 0.6 0.4 0.4 0.4 0.4 0.4 0.4 0.3 0.3
Transp wind dir.NW  NW  N   N   N   N   N   N   N   N   NE  NE
Transp wind spd.23  21  15  13  9   8   7   6   6   7   7   6
Dispr kt-ft/1K..152 133 21  7   4   3   3   2   2   2   2   1

.SUNDAY...

Sky/weather.........Sunny. Widespread frost early in the morning,
                    then areas of frost early in the morning.
CWR.................0 percent.
Chance of pcpn......0 percent.
Chance of thunder...0 percent.
Max temperature.....Around 64.
Min humidity........24 percent.
Wind (20 ft)........North winds 5 to 8 mph.
Mixing height.......7000 ft AGL.
Transport winds.....Northeast 6 to 9 mph shifting to the northwest
                    9 to 10 mph in the afternoon.
Smoke dispersal.....Poor (1600 knot-ft) early in the morning
                    increasing to good (63200 knot-ft) in the
                    afternoon.

TIME (CDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........20  17  15  9   5   2   1   3   3   6   11  10
Weather cov.....WID WID ARS
Weather type....FST FST FST
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............32  32  35  39  47  51  54  57  59  61  62  63
RH..............78  72  72  73  56  48  41  35  32  30  27  26
20 FT wind dir..N   N   N   N   N   N   N   NW  NW  NW  NW  N
20 FT wind spd..5   5   5   5   6   6   7   8   8   8   8   8
20 FT wind gust.9   9   8   9   10  11  11  13  14  14  13  13
Mix hgt (kft)...0.3 0.4 0.6 1.0 2.1 3.8 5.1 5.9 6.3 6.6 7.0 7.0
Transp wind dir.NE  NE  E   E   NE  N   N   N   NW  NW  NW  NW
Transp wind spd.6   6   6   6   8   9   9   9   9   9   10  9
Dispr kt-ft/1K..2   2   3   5   15  30  41  47  51  53  63  56

$$
Forecaster...HARGROVE
Requested by...Bismarck Rural Fire
Type of request...PRESCRIBED
.TAG 2613213.0/BIS
.DELDT 05/09/26
.FormatterVersion 2.0.0
.EMAIL dtheurer@bismarckruralfire.org