####018005173#### FNUS73 KFSD 240222 FWSFSD Spot Forecast for Brule Bottom GPA...South Wildland Fire National Weather Service Sioux Falls SD 922 PM CDT Tue Apr 23 2024 If conditions become unrepresentative, contact the National Weather Service. .DISCUSSION... Varying wind direction will be the main burn concern tonight, with current northerly winds rotating clockwise into the overnight period. Thus, expect northerly winds to become northeasterly, becoming easterly, and then southeasterly after midnight. As the temperature inversion strengthens, expect relative humidity values to be increasing as temperatures cool, with poor smoke dispersion continuing into the overnight period. .REST OF TONIGHT... Min temperature.....Around 36. Max humidity........85 percent. TIME (CDT) 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM Sky cover.......CLR CLR MCR MCR MCR MCR MCR MCR MCR Sky (%).........2 1 10 15 20 22 23 21 17 Weather cov..... Weather type.... Tstm cov........ Chc of pcpn (%).0 0 0 0 0 0 0 0 0 Temp............53 49 48 46 44 42 41 39 38 Dewpoint........31 32 31 32 31 32 32 32 32 RH..............43 52 51 58 60 67 70 73 76 20 FT wind dir..N NE ENE E ESE SE SE SE SE 20 FT wind spd..6 5 3 3 3 3 3 5 5 20 FT wind gust.8 6 6 5 6 6 6 7 8 Mix hgt (kft)...0.5 0.5 0.5 0.5 0.4 0.4 0.4 0.4 0.4 Transp wind dir.N NNE ENE E ESE SE SSE SSE SSE Transp wind spd.8 7 6 5 5 6 7 8 9 Haines index....4 4 4 4 4 4 4 4 4 Smoke Dispersal.PR PR PR PR PR PR PR PR PR .WEDNESDAY... Max temperature.....Around 68. Min humidity........33 percent. TIME (CDT) 6 AM 8 AM 10 AM NOON 2 PM 4 PM Sky cover.......MCLEAR MCLEAR MCLEAR PCLDY MCLDY MCLDY Sky (%).........15 13 22 39 52 62 Weather cov.....AREAS Weather type....FROST NONE NONE NONE NONE NONE Tstm cov........ Chc of pcpn (%).0 0 0 0 0 10 Temp............36 38 53 62 65 66 Dewpoint........33 33 37 36 35 37 RH..............82 70 52 38 33 34 20 ft wind......SE 5 SE 6 S 12 SSE 13 SSE 16 SSE 16 20 ft wind gust.8 10 17 17 20 22 Mix hgt (ft)....400 400 1600 4700 4800 5300 Transport wind..SSE 8 SSE 10 S 16 S 16 S 18 S 21 Haines index....4 4 4 4 4 4 Smoke Dispersal.POOR POOR FAIR GOOD EXCEL EXCEL .WEDNESDAY NIGHT... Min temperature.....Around 47. Max humidity........74 percent. TIME (CDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM Sky cover.......MCLDY PCLDY PCLDY PCLDY MCLEAR PCLDY Sky (%).........56 48 37 28 25 29 Weather cov..... Weather type....NONE NONE NONE NONE NONE NONE Tstm cov........ Chc of pcpn (%).10 10 0 0 0 0 Temp............66 62 57 53 51 50 Dewpoint........37 39 38 38 39 39 RH..............34 43 49 57 63 66 20 ft wind......SSE 18 SE 15 SE 20 SSE 21 SSE 18 SSE 16 20 ft wind gust.24 22 30 31 29 24 Mix hgt (ft)....4400 700 500 500 600 600 Transport wind..S 22 SE 18 SE 21 SSE 23 SSE 21 SSE 18 Haines index....4 5 5 5 4 4 Smoke Dispersal.EXCEL POOR POOR POOR POOR POOR .THURSDAY... Max temperature.....Around 70. Min humidity........49 percent. TIME (CDT) 6 AM 8 AM 10 AM NOON 2 PM 4 PM Sky cover.......PCLDY MCLDY MCLDY MCLDY MCLDY MCLDY Sky (%).........39 51 65 59 62 74 Weather cov..... S CHC S CHC S CHC CHANCE CHANCE Weather type....NONE RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR Tstm cov........ S CHC S CHC Chc of pcpn (%).0 20 20 20 30 30 Temp............49 51 58 63 67 68 Dewpoint........39 42 45 47 47 48 RH..............68 71 62 56 49 49 20 ft wind......SSE 16 SSE 18 SSE 22 SSE 26 SSE 28 SSE 26 20 ft wind gust.23 28 33 35 35 35 Mix hgt (ft)....500 1000 2300 3700 4200 3800 Transport wind..SSE 16 S 20 S 26 S 29 SSE 29 SSE 30 Haines index....4 4 4 4 3 3 Smoke Dispersal.POOR FAIR GOOD EXCEL EXCEL EXCEL $$ Forecaster...APT Requested by...Lane L Ostenson Type of request...PRESCRIBED .TAG 2412125.0/FSD .DELDT 04/23/24 .FormatterVersion 2.0.0