Spot Forecast
Issued by NWS Sioux Falls, SD

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Spot Forecast for Hwy 12 Reconstruction - Unit 2...The Nature Conservancy
National Weather Service Sioux Falls SD
940 PM CDT Wed Jun 5 2024

If conditions become unrepresentative, contact the National Weather
Service.

.DISCUSSION...

Winds continue to decrease this evening into tonight.
Northwesterly winds are expected, which could gust up to 20 mph
overnight. Lows tonight in the mid 50s, with RH values climbing
from the mid 30% range at 10 PM to over 65% by daybreak. Winds
quickly increase after daybreak - with gusts to 30 mph by 10 AM.
Winds continue to increase into the afternoon with gusts to 35
mph (isolated higher gusts are possible). High temperature near 80
Thursday with dry air will lead to minimum RH values in the upper
20s. Although fire danger is expected to be low with green fuels,
the combination of strong wind and low humidity may create
elevated fire conditions.

Dry weather is expected through Friday morning.

.REST OF TONIGHT...

Min temperature.....Around 53.
Max humidity........67 percent.

TIME (CDT)      11P MID 1AM 2AM 3AM 4AM 5AM
Sky cover.......CLR CLR CLR CLR CLR CLR CLR
Sky (%).........1   1   1   1   2   2   2
Weather cov.....
Weather type....
Tstm cov........
Chc of pcpn (%).0   0   0   0   0   0   0
Temp............66  61  59  58  55  54  54
Dewpoint........44  44  44  44  43  42  42
RH..............45  54  58  60  63  63  64
20 FT wind dir..WNW WNW WNW WNW WNW WNW WNW
20 FT wind spd..8   6   6   6   6   7   7
20 FT wind gust.    13  12  12  13  14  14
Mix hgt (kft)...0.4 0.4 0.4 0.4 0.4 0.4 0.4
Transp wind dir.NW  WNW WNW WNW WNW WNW W
Transp wind spd.14  13  13  13  14  14  15
Haines index....6   6   6   6   6   6   6
Smoke Dispersal.PR  PR  PR  PR  PR  PR  PR

.THURSDAY...

Max temperature.....Around 79.
Min humidity........27 percent.

TIME (CDT)      6 AM   8 AM   10 AM  NOON   2 PM   4 PM
Sky cover.......CLEAR  CLEAR  CLEAR  CLEAR  CLEAR  CLEAR
Sky (%).........2      2      2      3      2      1
Weather cov.....
Weather type....NONE   NONE   NONE   NONE   NONE   NONE
Tstm cov........
Chc of pcpn (%).0      0      0      0      0      0
Temp............53     59     68     74     76     79
Dewpoint........42     46     46     43     41     42
RH..............65     62     46     33     28     27
20 ft wind......WNW 7  WNW 8  WNW 12 NW 16  NW 16  NW 15
20 ft wind gust.14     17     23     28     29     28
Mix hgt (ft)....400    600    3700   6200   6700   7000
Transport wind..WNW 15 WNW 17 NW 28  NW 35  NW 36  NW 35
Haines index....6      5      5      5      4      4
Smoke Dispersal.POOR   POOR   EXCEL  EXCEL  EXCEL  EXCEL

.THURSDAY NIGHT...

Min temperature.....Around 54.
Max humidity........70 percent.

TIME (CDT)      6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
Sky cover.......CLEAR  CLEAR  CLEAR  CLEAR  CLEAR  CLEAR
Sky (%).........1      1      1      2      3      5
Weather cov.....
Weather type....NONE   NONE   NONE   NONE   NONE   NONE
Tstm cov........
Chc of pcpn (%).0      0      0      0      0      0
Temp............79     74     66     60     58     55
Dewpoint........42     45     45     45     45     45
RH..............27     35     47     57     63     69
20 ft wind......NW 12  NW 9   NW 6   WNW 5  WNW 3  WNW 3
20 ft wind gust.24     17     9      7      7      7
Mix hgt (ft)....5200   400    400    400    300    300
Transport wind..NW 28  NW 14  NW 9   WNW 7  NW 6   WNW 6
Haines index....4      5      5      5      5      5
Smoke Dispersal.EXCEL  POOR   POOR   POOR   POOR   POOR

.FRIDAY...

Max temperature.....Around 82.
Min humidity........32 percent.

TIME (CDT)      6 AM   8 AM   10 AM  NOON   2 PM   4 PM
Sky cover.......CLEAR  CLEAR  MCLEAR MCLEAR PCLDY  PCLDY
Sky (%).........4      4      6      25     39     46
Weather cov.....
Weather type....NONE   NONE   NONE   NONE   NONE   NONE
Tstm cov........
Chc of pcpn (%).0      0      0      0      10     10
Temp............54     58     67     76     81     81
Dewpoint........45     47     49     48     48     50
RH..............70     66     52     37     32     34
20 ft wind......WNW 3  NW 3   NNW 5  NW 7   WNW 7  WSW 6
20 ft wind gust.7      8      10     14     15     14
Mix hgt (ft)....300    800    1800   3500   4200   4100
Transport wind..NW 5   NW 5   NW 6   W 9    WSW 13 S 13
Haines index....5      5      5      5      4      4
Smoke Dispersal.POOR   POOR   POOR   FAIR   GOOD   GOOD

$$
Forecaster...SG
Requested by...Amy Crouch
Type of request...PRESCRIBED
.TAG 2415677.0/FSD
.DELDT 06/05/24
.FormatterVersion 2.0.0