Spot Forecast
Issued by NWS Bismarck, ND
Issued by NWS Bismarck, ND
954
FNUS73 KBIS 281312
FWSBIS
Spot Forecast for Pool B & C...USFWS
National Weather Service Bismarck ND
812 AM CDT Sun Apr 28 2024
Forecast is based on ignition time of 1100 CDT on April 28.
If conditions become unrepresentative, contact the National Weather
Service.
.DISCUSSION...
High pressure over Southeast Canada and low pressure over the Canadian
and Northern Rockies will result in southeast winds over the burn site
today. Light winds this morning will increase to around 10 mph at
ignition time, and then 10 to 15 mph this afternoon, continuing from the
southeast. Expect a scattered layer of low clouds around 2000 ft at ignition
time and increasing to around 4000 feet by early afternoon, it`s possible
this layer could become broken briefly, before thinning this afternoon. High
clouds will be on the increase through the afternoon. Poor smoke dispersal
this morning will improve to fair this afternoon. Mixing height at peak
heating this afternoon is expected to be around 4000 feet. The forecast high
today will be around 55 degrees with a minimum humidity of 35 to 40 percent.
.REST OF TODAY...
Sky/weather.........Partly sunny.
CWR.................0 percent.
Chance of pcpn......0 percent.
LAL.................1.
Max temperature.....Around 55.
Min humidity........38 percent.
Wind (20 ft)........Southeast winds 9 to 14 mph.
Mixing height.......3900 ft AGL.
Transport winds.....Southeast 14 to 15 mph.
Smoke dispersal.....Poor (32700 knot-ft) early in the morning
increasing to fair (48000 knot-ft) in the
afternoon.
Haines Index........4 to 5 or low to moderate potential for large
plume dominated fire growth.
TIME (CDT) 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........60 63 66 65 65 65 60
Weather cov.....
Weather type....
Tstm cov........
CWR.............0 0 0 0 0 0 0
Chc of pcpn (%).0 0 0 0 0 0 0
LAL.............1 1 1 1 1 1 1
Temp............43 46 49 50 54 55 55
RH..............62 58 52 48 40 38 40
20 FT wind dir..SE SE SE SE SE SE SE
20 FT wind spd..9 10 11 12 13 12 11
20 FT wind gust.14 15 17 17 17 16 15
Mix hgt (kft)...2.7 3.4 3.5 3.7 3.6 3.9 3.8
Transp wind dir.SE SE SE SE E E E
Transp wind spd.14 15 15 15 14 14 14
Haines index....4 4 4 4 5 5 5
Dispr kt-ft/1K..33 44 46 48 44 47 46
.TONIGHT...
Sky/weather.........Mostly cloudy.
CWR.................0 percent.
Chance of pcpn......10 percent.
LAL.................1.
Min temperature.....Around 34.
Max humidity........96 percent.
Wind (20 ft)........Southeast winds 5 to 11 mph in the evening and
overnight becoming light.
Mixing height.......400 ft AGL.
Transport winds.....East 6 to 15 mph decreasing to around 5 mph
early in the morning.
Smoke dispersal.....Fair (48800 knot-ft) early in the evening
decreasing to poor (1900 knot-ft) late in the
night.
Haines Index........2 to 4 or very low to low potential for large
plume dominated fire growth.
TIME (CDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........50 63 63 64 64 67 69 72 72 72 71 65
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 10 10 10 10 10
LAL.............1 1 1 1 1 1 1 1 1 1 1 1
Temp............54 54 51 48 45 43 41 40 39 38 37 36
RH..............41 41 48 56 65 70 79 82 85 89 92 92
20 FT wind dir..SE SE SE SE SE SE SE SE E E E E
20 FT wind spd..11 11 10 8 8 8 7 6 6 5 4 4
20 FT wind gust.18 18 15 14 13 13 12 11 10 9 8 7
Mix hgt (kft)...3.8 3.8 3.5 0.7 0.8 0.6 0.6 0.5 0.5 0.4 0.4 0.5
Transp wind dir.E E E E E SE E E SE SE SE E
Transp wind spd.14 15 14 13 13 12 12 9 8 7 6 5
Haines index....4 4 4 3 3 3 2 2 2 3 3 3
Dispr kt-ft/1K..46 49 42 8 8 6 6 4 3 3 2 2
.MONDAY...
Sky/weather.........Mostly sunny.
CWR.................0 percent.
Chance of pcpn......10 percent.
LAL.................1.
Max temperature.....Around 64.
Min humidity........34 percent.
Wind (20 ft)........Light winds becoming southeast around 5 mph
late in the morning, then becoming light late
in the morning becoming east 5 to 7 mph in the
afternoon.
Mixing height.......4900 ft AGL.
Transport winds.....Southeast 3 to 6 mph shifting to the west
around 7 mph late in the afternoon.
Smoke dispersal.....Poor (2300 knot-ft).
Haines Index........3 to 4 or very low to low potential for large
plume dominated fire growth.
TIME (CDT) 6 AM 9 AM NOON 3 PM
Sky (%).........59 34 38 14
Weather cov.....
Weather type....NONE NONE NONE NONE
Tstm cov........
CWR.............0 0 0 0
Chc of pcpn (%).10 0 0 0
LAL.............1 1 1 1
Temp............35 42 53 60
RH..............96 79 54 39
20 FT wind......E 3G6 SE 4G7 E 4G5 E 7G10
Mix hgt (ft)....500 1300 3300 4500
Transport wind..SE 6 E 5 N 6 NW 8
Haines index....3 4 4 3
Dispr kt-ft/1K..2 5 18 31
$$
Forecaster...HAMILTON
Requested by...Calvin
Type of request...PRESCRIBED
.TAG 2412626.0/BIS
.DELDT 04/28/24
.FormatterVersion 2.0.0
.EMAIL calvin_moldenhauer@fws.gov