863
FNUS73 KBIS 281036
FWSBIS

Spot Forecast for Malm WPA...USFWS
National Weather Service Bismarck ND
536 AM CDT Tue May 28 2024

Forecast is based on ignition time of 0900 CDT on May 28.
If conditions become unrepresentative, contact the National Weather
Service.

.DISCUSSION...

Surface high pressure will drift east across the region today,
with north winds today becoming more south tonight. Chances for
any precipitation will be minimal until Wednesday night through
Thursday morning.

.REST OF TODAY...

Sky/weather.........Mostly sunny.
CWR.................0 percent.
Chance of pcpn......0 percent.
LAL.................1.
Max temperature.....Around 61.
Min humidity........47 percent.
Wind (20 ft)........North winds 10 to 12 mph.
Mixing height.......5000 ft AGL.
Transport winds.....North 12 to 16 mph.
Smoke dispersal.....Poor (23800 knot-ft) early in the morning
                    increasing to good (64300 knot-ft) in the
                    afternoon.
Haines Index........2 to 3 or very low potential for large plume
                    dominated fire growth.

TIME (CDT)      9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........25  22  30  35  46  44  50  33  29
Weather cov.....
Weather type....
Tstm cov........
CWR.............0   0   0   0   0   0   0   0   0
Chc of pcpn (%).0   0   0   0   0   0   0   0   0
LAL.............1   1   1   1   1   1   1   1   1
Temp............50  53  55  57  57  58  60  60  60
RH..............83  71  64  57  57  53  49  49  47
20 FT wind dir..N   N   N   N   N   N   N   N   N
20 FT wind spd..10  10  11  11  12  11  11  10  10
20 FT wind gust.14  14  14  14  14  14  14  14  14
Mix hgt (kft)...2.0 2.8 3.6 4.4 4.7 4.9 4.9 5.0 4.9
Transp wind dir.N   N   N   N   N   N   N   N   N
Transp wind spd.14  15  16  16  15  15  14  13  12
Haines index....3   3   3   2   2   2   2   2   2
Dispr kt-ft/1K..24  36  51  61  61  64  59  55  49

.TONIGHT...

Sky/weather.........Mostly clear.
CWR.................0 percent.
Chance of pcpn......0 percent.
LAL.................1.
Min temperature.....Around 41.
Max humidity........93 percent.
Wind (20 ft)........Northeast winds 7 to 10 mph shifting to the
                    southeast 6 to 8 mph overnight.
Mixing height.......400 ft AGL.
Transport winds.....Northeast 9 to 12 mph shifting to the southeast
                    around 13 mph after 3 am.
Smoke dispersal.....Fair (45700 knot-ft) early in the evening
                    decreasing to poor (3500 knot-ft) late in the
                    night.
Haines Index........2 to 3 or very low potential for large plume
                    dominated fire growth.

TIME (CDT)      6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
Sky (%).........24     25     9      7      5      10
Weather cov.....
Weather type....NONE   NONE   NONE   NONE   NONE   NONE
Tstm cov........
CWR.............0      0      0      0      0      0
Chc of pcpn (%).0      0      0      0      0      0
LAL.............1      1      1      1      1      1
Temp............60     57     50     46     44     42
RH..............47     53     71     83     86     93
20 ft wind......NE 10  NE 8   E 7    E 7    SE 6   SE 7
20 ft wind gust.14     12     10     10     10     11
Mix hgt (ft)....4600   3000   500    400    400    400
Transport wind..N 12   NE 9   E 9    E 12   E 12   SE 13
Haines index....2      2      2      2      2      3
Dispr kt-ft/1K..46     24     4      4      4      4

.WEDNESDAY...

Sky/weather.........Sunny.
CWR.................0 percent.
Chance of pcpn......0 percent.
LAL.................1.
Max temperature.....Around 69.
Min humidity........43 percent.
Wind (20 ft)........Southeast winds 9 to 17 mph with gusts to
                    around 24 mph increasing to 19 to 21 mph with
                    gusts to around 27 mph late in the afternoon.
Mixing height.......3600 ft AGL.
Transport winds.....South 13 to 22 mph shifting to the southeast 23
                    to 28 mph late in the afternoon.
Smoke dispersal.....Poor (4300 knot-ft) early in the morning
                    increasing to good (85300 knot-ft) in the
                    afternoon.
Haines Index........4 to 5 or low to moderate potential for large
                    plume dominated fire growth.

TIME (CDT)      6 AM      9 AM      NOON      3 PM
Sky (%).........16        14        4         8
Weather cov.....
Weather type....NONE      NONE      NONE      NONE
Tstm cov........
CWR.............0         0         0         0
Chc of pcpn (%).0         0         0         0
LAL.............1         1         1         1
Temp............42        52        62        68
RH..............93        74        53        45
20 FT wind......S 9G13    S 13G18   SE 16G22  SE 20G26
Mix hgt (ft)....400       1400      2800      3500
Transport wind..S 13      S 17      SE 21     SE 25
Haines index....4         5         4         4
Dispr kt-ft/1K..4         21        51        76

$$
Forecaster...HEINERT
Requested by...D. Mireles
Type of request...PRESCRIBED
.TAG 2415176.0/BIS
.DELDT 05/28/24
.FormatterVersion 2.0.0
.EMAIL Dustin_mireles@fws.gov