594
FNUS73 KBIS 051136
FWSBIS

Spot Forecast for Hb-10...FWS
National Weather Service Bismarck ND
636 AM CDT Thu Jun 5 2025

Forecast is based on ignition time of 1000 CDT on June 05.
If conditions become unrepresentative, contact the National Weather
Service.

.DISCUSSION...

Isolated showers are expected this afternoon and early evening,
along with a very low chance of a rumble or two of thunder. Once
the sun sets, expect dry conditions for tonight through Friday.
Light southerly winds, perhaps variable at times, are expected
today through tonight before taking on a southwesterly component
Friday with sustained winds increasing to around 10 to 15 mph.
The exception being that brief gusty and erratic winds are
possible near any showers or thunderstorms that develop. A high
temperature of 73 degrees is expected today with minimum relative
humidity values dropping down to 30 percent. Relative humidity
will recover to 83 percent tonight before dropping back down to
around 29 percent Friday afternoon. Partly cloudy skies are
expected today, though they may maintain a milky appearance from
elevated smoke.

.TODAY...

Sky/weather.........Partly cloudy with a slight chance of showers in
 the afternoon, along with a very low chance for
a rumble or two of thunder.
CWR.................1 percent.
Chance of pcpn......20 percent.
Chance of thunder...10 percent.
Max temperature.....Around 73.
Min humidity........30 percent.
Wind (20 ft)........Light and variable winds with brief gusty and
erratic winds possible near any showers and
thunderstorms.
Mixing height.......8700 ft AGL.
Transport winds.....Southwest around 7 mph shifting to the west late
in the afternoon.
Smoke dispersal.....Poor (8800 knot-ft) early in the morning increasing
to fair (58900 knot-ft) in the afternoon.

TIME (CDT)      10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........31  31  33  34  44  45  48  46
Weather cov.....                    SCH SCH SCH
Weather type....                    RW  RW  RW
Tstm cov........
CWR.............0   0   0   0   0   0   1   1
Chc of pcpn (%).0   0   0   0   10  20  20  20
Chc of thdr (%).0   0   0   0   0   0   10  10
Temp............62  65  67  68  70  70  70  71
RH..............54  45  39  36  32  31  31  31
20 FT wind dir..SW  S   S   S   SW  SW  SW  SW
20 FT wind spd..3   3   3   4   4   4   4   4
20 FT wind gust.7   8   8   8   8   8   9   9
Mix hgt (kft)...1.8 4.9 6.6 8.1 8.7 8.4 7.8 7.7
Transp wind dir.SW  SW  W   W   W   W   W   SW
Transp wind spd.6   6   6   6   7   8   8   7
Dispr kt-ft/1K..9   24  33  41  52  59  54  46

.TONIGHT...

Sky/weather.........Partly cloudy. Slight chance of rain showers
                    early in the evening with a low chance for a
rumble or two of thunder.
CWR.................5 percent.
Chance of pcpn......20 percent.
Chance of thunder...20 percent.
Min temperature.....Around 48.
Max humidity........83 percent.
Wind (20 ft)........Light and variable winds becoming south around
5 mph. Gusty and erratic winds possible near
any showers and thunderstorms.
Mixing height.......300 ft AGL.
Transport winds.....Southwest around 8 mph shifting to the south
early in the evening.
Smoke dispersal.....Fair (49600 knot-ft) early in the evening
decreasing to poor (1900 knot-ft) late in the
night.

TIME (CDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........43  40  37  32  31  31  31  31  31  30  31  31
Weather cov.....SCH SCH
Weather type....RW  RW
Tstm cov........    SCH
CWR.............1   5   1   1   1   1   1   0   0   0   0   0
Chc of pcpn (%).20  20  10  10  10  10  10  0   0   0   0   0
Chc of thdr (%).10  20  10  10  10  10  10  0   0   0   0   0
Temp............71  70  67  63  58  56  54  53  51  50  50  49
RH..............30  34  39  46  55  59  64  71  74  77  77  80
20 FT wind dir..S   SW  S   S   S   SW  S   S   S   S   S   SW
20 FT wind spd..4   4   4   4   5   5   5   6   6   6   7   7
20 FT wind gust.9   9   8   7   7   8   9   9   10  10  11  11
Mix hgt (kft)...7.1 6.8 4.3 0.7 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.4
Transp wind dir.W   SW  S   S   S   S   S   S   S   S   S   SW
Transp wind spd.8   8   12  7   7   8   9   10  10  12  13  13
Dispr kt-ft/1K..50  47  43  4   2   2   3   3   3   3   4   4

.FRIDAY...

Sky/weather.........Mostly sunny.
CWR.................0 percent.
Chance of pcpn......0 percent.
Chance of thunder...0 percent.
Max temperature.....Around 78.
Min humidity........29 percent.
Wind (20 ft)........Southwest winds 7 to 12 mph.
Mixing height.......7200 ft AGL.
Transport winds.....Southwest 13 to 16 mph.
Smoke dispersal.....Poor (4100 knot-ft) early in the morning
                    increasing to very good (101900 knot-ft) in the
                    afternoon.

TIME (CDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........33  19  16  4   2   6   14  21  24  27  30  37
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............49  51  57  62  67  70  72  74  76  77  77  77
RH..............83  83  72  62  52  46  40  35  32  31  30  29
20 FT wind dir..SW  SW  SW  SW  SW  SW  SW  SW  SW  SW  SW  SW
20 FT wind spd..7   7   8   9   9   10  10  11  11  12  12  12
20 FT wind gust.12  12  13  14  15  17  18  18  18  19  19  19
Mix hgt (kft)...0.4 0.4 1.1 1.9 2.8 4.7 5.8 7.0 7.1 7.1 7.2 7.1
Transp wind dir.SW  SW  SW  SW  SW  SW  W   W   W   SW  SW  SW
Transp wind spd.13  13  14  16  14  14  14  14  14  14  15  16
Dispr kt-ft/1K..4   5   13  26  34  56  70  84  85  88  94  102

$$
Forecaster...TELKEN
Requested by...Calvin Moldenhauer
Type of request...PRESCRIBED
.TAG 2515369.0/BIS
.DELDT 06/05/25
.FormatterVersion 2.0.0
.EMAIL calvin_moldenhauer@fws.gov