Spot Forecast Issued by NWS Sioux Falls, SD
000
FNUS73 KFSD 212327
FWSFSD
Spot Forecast for Hq ditch...IOWA DNR
National Weather Service Sioux Falls SD
627 PM CDT Sun Apr 21 2024
If conditions become unrepresentative, contact the National Weather
Service.
.DISCUSSION...
Main burn concern is the slow change in wind direction as westerly
winds will continue to gradually shift to become out of the
southwest by 8PM. Wind speed looks to remain fairly consistent,
though also decreasing slowly over the coming hours with no gusts
expected. Otherwise, expect humidity values to increase as
surface temperatures cool, but still looking to remain below 40%
until around 10 PM.
.REST OF TONIGHT...
Min temperature.....Around 37.
Max humidity........67 percent.
TIME (CDT) 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky cover.......CLR CLR CLR CLR CLR CLR MCR MCR PC PC PC
Sky (%).........4 4 4 5 3 3 6 12 39 37 32
Weather cov.....
Weather type....
Tstm cov........
Chc of pcpn (%).0 0 0 0 0 0 0 0 0 0 0
Temp............58 53 49 46 44 42 40 39 39 38 38
Dewpoint........24 24 25 26 27 27 28 27 27 26 26
RH..............27 32 39 45 51 55 62 62 62 62 62
20 FT wind dir..W W WSW SW SW SSW SSW S SSW SSW SSW
20 FT wind spd..10 8 8 8 8 8 8 9 12 13 13
20 FT wind gust.14 12 10 10 10 10 12 14 18 21 20
Mix hgt (kft)...5.0 0.5 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.5 0.5
Transp wind dir.W W WSW WSW SW SW SSW SSW SSW SSW SSW
Transp wind spd.16 12 12 12 12 12 13 14 16 18 18
Haines index....5 5 5 5 5 5 5 5 5 5 5
Smoke Dispersal.EX PR PR PR PR PR PR PR PR PR PR
.MONDAY...
Max temperature.....Around 71.
Min humidity........35 percent.
TIME (CDT) 6 AM 8 AM 10 AM NOON 2 PM 4 PM
Sky cover.......PCLDY MCLDY MCLDY MCLDY MCLDY MCLDY
Sky (%).........37 58 73 80 80 71
Weather cov..... CHANCE S CHC S CHC
Weather type....NONE NONE NONE RNSHWR RNSHWR RNSHWR
Tstm cov........
Chc of pcpn (%).0 0 0 10 20 20
Temp............38 41 52 59 67 70
Dewpoint........26 30 34 37 40 42
RH..............62 65 50 44 37 36
20 ft wind......SSW 14 SSW 18 S 26 SSW 26 SW 26 WSW 26
20 ft wind gust.22 30 41 40 40 38
Mix hgt (ft)....500 700 1700 2800 4600 5900
Transport wind..SSW 20 SSW 22 SSW 32 SSW 37 SW 36 WSW 33
Haines index....5 4 4 4 4 4
Smoke Dispersal.POOR POOR GOOD EXCEL EXCEL EXCEL
.MONDAY NIGHT...
Min temperature.....Around 42.
Max humidity........67 percent.
TIME (CDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM
Sky cover.......MCLDY PCLDY PCLDY PCLDY PCLDY PCLDY
Sky (%).........61 48 33 29 33 41
Weather cov.....S CHC
Weather type....RNSHWR NONE NONE NONE NONE NONE
Tstm cov........
Chc of pcpn (%).20 10 0 0 0 0
Temp............70 64 55 50 48 44
Dewpoint........42 42 41 36 33 32
RH..............36 45 59 58 56 62
20 ft wind......W 18 W 13 W 9 W 9 W 8 W 9
20 ft wind gust.28 23 13 12 10 12
Mix hgt (ft)....5000 800 400 400 400 400
Transport wind..W 25 W 17 W 15 WNW 16 W 15 W 15
Haines index....4 6 6 6 6 6
Smoke Dispersal.EXCEL POOR POOR POOR POOR POOR
.TUESDAY...
Max temperature.....Around 63.
Min humidity........37 percent.
TIME (CDT) 6 AM 8 AM 10 AM NOON 2 PM 4 PM
Sky cover.......PCLDY PCLDY MCLDY PCLDY MCLDY MCLDY
Sky (%).........49 46 56 39 58 57
Weather cov..... S CHC S CHC
Weather type....NONE NONE NONE NONE RNSHWR RNSHWR
Tstm cov........
Chc of pcpn (%).0 10 10 10 20 20
Temp............42 45 53 58 61 62
Dewpoint........31 30 32 34 36 36
RH..............65 55 44 40 39 37
20 ft wind......W 10 W 17 WNW 23 NW 24 NW 25 NNW 25
20 ft wind gust.14 25 36 37 37 38
Mix hgt (ft)....500 1600 3800 5900 6700 6400
Transport wind..W 15 WNW 20 NW 28 NW 30 NW 30 NW 28
Haines index....6 6 6 6 3 3
Smoke Dispersal.POOR FAIR EXCEL EXCEL EXCEL EXCEL
$$
Forecaster...APT
Requested by...Todd Perry
Type of request...PRESCRIBED
.TAG 2411648.0/FSD
.DELDT 04/21/24
.FormatterVersion 2.0.0