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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