568
FNUS73 KGID 031015
FWSGID

Spot Forecast for Slough_RX_24...Central Platte NRD
National Weather Service Hastings NE
515 AM CDT Fri May 3 2024

Forecast is based on ignition time of 0800 CDT on May 03.
If conditions become unrepresentative, contact the National Weather
Service.

.DISCUSSION...

Expect southerly winds at 10-15 mph this morning, increasing to
15-20 mph with gusts to 30 mph this afternoon. The high
temperature will be in the low to mid-70s with RH values falling
to around 30 percent by mid-afternoon. Winds will switch to
northerly this evening as a front moves through the area. Showers
and thunderstorms are likely over the site this evening and
overnight, with rainfall amounts of a little over half an inch
expected. Some of those may be severe with strong thunderstorm
winds in excess of 60 mph and large hail. Behind the
thunderstorms, northerly winds are expected to gust up to 25 mph
into the early morning hours Saturday.

Saturday, showers and thunderstorms will move out of the area by
shortly after sunrise. Winds will be northerly at 10-15 mph and
RH values will fall to around 40-45 percent during the afternoon.
The high temperature will be around 65 degrees.

.REST OF TODAY...

Sky/weather.........Mostly sunny (25-35 percent).
Max temperature.....Around 72.
Min humidity........32 percent.
Wind (20 ft)........South winds 8 to 17 mph increasing to around 18
                    mph late in the afternoon.
Mixing height.......5900 ft AGL.
Transport winds.....South 14 to 23 mph increasing to 24 to 29 mph
                    late in the afternoon.
Haines Index........5 to 6 or moderate to high potential for large
                    plume dominated fire growth.

TIME (CDT)      8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........44  51  53  42  33  28  16  6   5   11
Weather cov.....
Weather type....
Tstm cov........
Temp............48  51  57  61  64  67  69  71  72  72
RH..............91  83  69  58  46  42  36  33  32  33
20 FT wind dir..S   S   S   S   S   S   S   S   S   S
20 FT wind spd..8   9   9   12  13  15  17  17  18  18
20 FT wind gust.13  14  22  20  22  22  22  25  29  28
Mix hgt (kft)...0.5 1.0 1.4 2.2 3.1 3.6 4.4 5.3 5.9 5.9
Transp wind dir.S   S   S   S   S   S   S   S   S   S
Transp wind spd.14  17  18  18  21  23  24  26  28  29
Haines index....6   6   6   6   6   5   5   5   5   5

.TONIGHT...

Sky/weather.........Partly cloudy (25-35 percent) then becoming
                    mostly cloudy (75-85 percent). Rain showers and
                    chance of thunderstorms through the night.
Min temperature.....Around 43.
Max humidity........95 percent.
Wind (20 ft)........Southeast winds 10 to 17 mph shifting to the
                    north 12 to 17 mph in the late evening and
                    overnight. Gusts up to 30 mph increasing to 32
                    mph overnight. Gusty and erratic winds expected
                    near thunderstorms early in the evening. Gusty
                    and erratic winds expected near thunderstorms
                    in the late evening and overnight.
Mixing height.......500 ft AGL.
Transport winds.....South 23 to 28 mph becoming southeast 15 to 16
                    mph early in the evening, then shifting to the
                    north 18 to 22 mph late in the evening
                    increasing to 25 to 31 mph overnight decreasing
                    to 20 to 21 mph.
Haines Index........3 to 5 or very low to moderate potential for
                    large plume dominated fire growth.

TIME (CDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........17  22  47  60  82  91  93  95  84  72  87  72
Weather cov.....    SCH CHC CHC LKY DEF DEF DEF DEF DEF CHC CHC
Weather type....    RW  RW  RW  RW  RW  RW  RW  RW  RW  RW  RW
Tstm cov........    SCH SCH SCH CHC CHC CHC CHC CHC CHC
Temp............71  70  67  63  61  56  53  49  49  47  46  45
RH..............36  40  47  56  62  74  80  89  89  93  92  94
20 FT wind dir..S   S   SE  SE  N   N   N   N   N   N   N   N
20 FT wind spd..17  14  10  10  12  14  14  17  17  17  14  14
20 FT wind gust.30  23  22  22  26  24  23  32  32  28  25  26
Mix hgt (kft)...5.7 3.7 0.6 0.5 0.5 0.5 1.3 2.0 1.3 1.3 1.3 1.5
Transp wind dir.S   S   S   SE  SE  N   N   N   N   N   N   N
Transp wind spd.28  23  16  15  16  18  22  31  29  25  20  21
Haines index....5   4   4   4   4   4   4   3   3   3   3   3

.SATURDAY...

Sky/weather.........Partly sunny (55-65 percent) then becoming
                    sunny (5-15 percent). Chance of rain showers
                    early in the morning.
Max temperature.....Around 64.
Min humidity........42 percent.
Wind (20 ft)........North winds 13 to 17 mph.
Mixing height.......5300 ft AGL.
Transport winds.....North 14 to 23 mph.
Haines Index........3 or very low potential for large plume
                    dominated fire growth.

TIME (CDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........64  59  55  53  8   19  16  6   12  9   5   6
Weather cov.....CHC
Weather type....RW
Tstm cov........
Temp............45  43  45  46  51  54  56  59  60  62  63  63
RH..............94  95  87  88  70  65  58  52  51  47  42  45
20 FT wind dir..N   N   N   N   N   N   N   N   N   N   N   N
20 FT wind spd..14  14  15  15  17  15  14  16  14  14  13  13
20 FT wind gust.25  23  23  21  22  21  21  22  20  17  17  15
Mix hgt (kft)...1.4 1.3 1.8 2.0 2.6 3.4 4.1 4.6 5.0 5.2 5.2 5.3
Transp wind dir.N   N   N   N   N   N   N   N   N   N   N   N
Transp wind spd.22  20  23  22  23  21  20  20  18  17  16  14
Haines index....3   3   3   3   3   3   3   3   3   3   3   3

$$
Forecaster...Hickford
Requested by...Nelson Winkel
Type of request...PRESCRIBED
.TAG 2413034.0/GID
.DELDT 05/03/24
.FormatterVersion 2.0.0
.EMAIL winkel@cpnrd.org