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000
FNUS73 KBIS 241231
FWSBIS

Spot Forecast for Maclean Bottoms Prescribed burn...ND Game and Fish
National Weather Service Bismarck ND
731 AM CDT Wed Apr 24 2024

Forecast is based on ignition time of 0800 CDT on April 24.
If conditions become unrepresentative, contact the National Weather
Service.

.DISCUSSION...

Expect a sunny morning at the burn site with mid to high clouds
likely to move in by late morning or early afternoon. We should
see the afternoon high temperature rise to around 70 with humidity
dipping to as low as 23 percent. Winds will be fairly light
through the morning but will increase into the 8 to 15 mph range
(out of the south) by the afternoon hours. A few gusts to 25 mph
will be possible. Winds could increase just a touch more early
this evening before diminishing around sunset.

Humidity recovers to around 75 percent tonight with a low around
44. It will be a bit breezier and warmer tomorrow with a high
around 75 and winds out of the south up to 25 mph by the afternoon
hours.

.REST OF TODAY...

Sky/weather.........Sunny then becoming partly sunny.
CWR.................0 percent.
Chance of pcpn......0 percent.
LAL.................1.
Max temperature.....Around 70.
Min humidity........23 percent.
Wind (20 ft)........Light winds becoming south 8 to 15 mph in the
                    late morning and afternoon.
Mixing height.......7700 ft AGL.
Transport winds.....South 10 to 18 mph.
Smoke dispersal.....Poor (3400 knot-ft) early in the morning
                    increasing to good (97000 knot-ft) in the
                    afternoon increasing to very good (110900
                    knot-ft) late in the afternoon.
Haines Index........4 or low potential for large plume dominated
                    fire growth.

TIME (CDT)      8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........4   3   5   13  38  66  69  58  56  62
Weather cov.....
Weather type....
Tstm cov........
CWR.............0   0   0   0   0   0   0   0   0   0
Chc of pcpn (%).0   0   0   0   0   0   0   0   0   0
LAL.............1   1   1   1   1   1   1   1   1   1
Temp............34  41  48  56  60  63  66  67  69  70
RH..............69  57  47  40  33  27  26  25  23  24
20 FT wind dir..SE  S   S   S   S   S   S   S   S   S
20 FT wind spd..4   7   9   9   11  12  12  13  14  15
20 FT wind gust.5   9   12  13  15  17  17  19  20  21
Mix hgt (kft)...0.4 0.6 1.2 2.1 4.0 5.4 6.3 6.9 7.4 7.7
Transp wind dir.S   S   S   S   S   S   S   S   S   S
Transp wind spd.10  13  15  15  15  15  16  16  17  18
Haines index....4   4   4   4   4   4   4   4   4   4
Dispr kt-ft/1K..3   7   16  27  52  71  89  97  111 123

.TONIGHT...

Sky/weather.........Mostly cloudy then becoming mostly clear.
CWR.................0 percent.
Chance of pcpn......10 percent.
LAL.................1.
Min temperature.....Around 44.
Max humidity........75 percent.
Wind (20 ft)........Southeast winds 11 to 17 mph. Gusts up to 28
                    mph in the late evening and overnight.
Mixing height.......500 ft AGL.
Transport winds.....Southeast 15 to 21 mph.
Smoke dispersal.....Very good (106900 knot-ft) early in the evening
                    decreasing to poor (7600 knot-ft) late in the
                    night.
Haines Index........4 to 5 or low to moderate potential for large
                    plume dominated fire growth.

TIME (CDT)      6 PM      9 PM      MIDNGT    3 AM
Sky (%).........66        16        15        8
Weather cov.....
Weather type....NONE      NONE      NONE      NONE
Tstm cov........
CWR.............0         0         0         0
Chc of pcpn (%).10        10        10        0
LAL.............1         1         1         1
Temp............69        58        53        50
RH..............26        41        54        62
20 FT wind......S 17G24   SE 11G15  SE 15G21  SE 16G21
Mix hgt (ft)....6700      600       600       700
Transport wind..S 18      SE 15     SE 20     SE 18
Haines index....5         4         4         5
Dispr kt-ft/1K..107       8         10        12

.THURSDAY...

Sky/weather.........Mostly sunny. Slight chance of rain in the
                    afternoon.
CWR.................0 percent.
Chance of pcpn......20 percent.
LAL.................1.
Max temperature.....Around 74.
Min humidity........40 percent.
Wind (20 ft)........Southeast winds 14 to 23 mph shifting to the
                    south around 24 mph late in the afternoon.
Mixing height.......4200 ft AGL.
Transport winds.....South 16 to 23 mph increasing to 26 to 30 mph
                    in the afternoon.
Smoke dispersal.....Poor (8500 knot-ft) early in the morning
                    increasing to very good (106800 knot-ft) in the
                    afternoon increasing to very good (105500
                    knot-ft) late in the afternoon.
Haines Index........3 to 4 or very low to low potential for large
                    plume dominated fire growth.

TIME (CDT)      6 AM         10 AM        2 PM
Sky (%).........21           12           60
Weather cov.....                          S CHC
Weather type....NONE         NONE         RAIN
Tstm cov........
CWR.............0            0            0
Chc of pcpn (%).0            0            20
LAL.............1            1            1
Temp............46           58           72
RH..............71           53           40
20 FT wind......SE 14G20     S 18G20      S 23G26
Mix hgt (ft)....700          1800         3900
Transport wind..SE 16        S 21         S 30
Haines index....4            4            3
Dispr kt-ft/1K..10           32           102

$$
Forecaster...HARGROVE
Requested by...Levi Jacobson
Type of request...PRESCRIBED
.TAG 2412181.0/BIS
.DELDT 04/24/24
.FormatterVersion 2.0.0
.EMAIL lcjacobson@nd.gov