Spot Forecast
Issued by NWS North Platte, NE

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Spot Forecast for WTREX Niobrara Hazel Rx Burn...The Nature Conservancy
National Weather Service North Platte NE
924 AM CDT Tue Apr 30 2024

Forecast is based on ignition time of 1000 CDT on April 30.
If conditions become unrepresentative...contact the National Weather
Service.

Please contact the NWS North Platte office at 308-532-0921 (or
at 1-800-603-3562) if you have any questions or concerns with this forecast.

.DISCUSSION...

Elevated to near critical fire weather conditions are expected
this afternoon across western and southwest Nebraska,
particularly across zones 204, 210, 219, and southern portions of
206. Following the passage of a cold front this afternoon,
relative humidity values will fall to around 15 to 20 percent.
Winds will shift from the south to the northwest, with gusts of 45
miles per hour or greater. Questions remain on how much the
recent rainfall and green up may temper fire weather concerns,
however areas of dry fuels will be susceptible this afternoon.

Otherwise, chances of wetting precipitation remain across most of
western and north central Nebraska through the weekend, as showers
and thunderstorms are possible every day.


.REST OF TODAY...

Sky/weather.........Mostly cloudy then becoming partly sunny then
                    becoming sunny. Slight chance of showers late
                    in the morning. Slight chance of thunderstorms
                    in the late morning and early afternoon. Chance
                    of showers early in the afternoon.
Max temperature.....Around 67.
Min humidity........42 percent.
Wind (20 ft)........West winds 12 to 16 mph with gusts to around 29
                    mph shifting to the northwest 20 to 23 mph around
                    1 to 3 PM CT. Gusty and erratic winds
                    expected near showers in the late morning
                    and early afternoon.
Eye level winds.....Northwest winds 8 to 14 mph.
LAL.................2 decreasing to 1 late in the afternoon.
Mixing height.......6000 ft AGL.
Transport winds.....West 17 to 26 mph shifting to the northwest 28
                    to 30 mph 1-3 PM CT.
Haines Index........5 moderate.

TIME (CDT)      10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........63  76  64  47  57  21  25  24
Weather cov.....SCH SCH SCH CHC CHC
Weather type....RW  RW  RW  RW  RW
Tstm cov........SCH SCH SCH SCH SCH
LAL.............2   2   2   2   2   3   3   2
Temp............58  61  64  65  66  64  63  63
RH..............66  58  52  46  43  43  44  43
20 FT wind dir..W   W   W   W   NW  NW  NW  NW
20 FT wind spd..12  13  15  16  20  21  23  22
20 FT wind gust.16  17  21  29  31  32  32  31
Eye lvl wnd dir.W   W   W   W   NW  NW  NW  NW
Eye lvl wnd spd.7   8   9   10  12  13  14  13
Eye lvl wnd gst.10  10  13  17  19  19  19  19
Mix hgt (kft)...1.6 1.8 3.2 5.6 5.8 5.7 6.0 6.0
Transp wind dir.W   NW  W   W   NW  NW  W   NW
Transp wind spd.22  17  20  26  29  30  30  28
Haines index....5   5   5   5   5   5   5   5

.TONIGHT...

Sky/weather.........Mostly clear.
Min temperature.....Around 37.
Max humidity........79 percent.
Wind (20 ft)........Northwest winds 12 to 20 mph decreasing to 6 to
                    8 mph late in the evening, then shifting to the
                    west 5 to 6 mph overnight shifting to the south
                    around 7 mph early in the morning.
Eye level winds.....Northwest winds 7 to 12 mph decreasing to up to
                    5 mph late in the evening, then shifting to the
                    west up to 4 mph overnight shifting to the
                    south around 4 mph early in the morning.
LAL.................1.
Mixing height.......400 ft AGL.
Transport winds.....Northwest 23 to 28 mph decreasing to 7 to 14
                    mph early in the evening, then shifting to the
                    northeast around 6 mph overnight shifting to
                    the southeast 7 to 9 mph after 3 am.
Haines Index........5 moderate.

TIME (CDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........15  3   5   5   13  11  19  26  29  15  21  41
Weather cov.....
Weather type....
Tstm cov........
LAL.............1   1   1   1   1   1   1   1   1   1   1   1
Temp............61  60  56  51  49  46  45  43  42  41  39  39
RH..............42  42  51  59  61  68  62  67  67  70  73  73
20 FT wind dir..NW  NW  NW  NW  NW  NW  W   W   W   SW  SW  S
20 FT wind spd..20  15  12  8   7   6   6   5   5   5   5   7
20 FT wind gust.29  22  18  13  10  9   8   6   6   7   7   10
Eye lvl wnd dir.NW  NW  NW  NW  NW  NW  W   W   W   SW  SW  S
Eye lvl wnd spd.12  9   7   5   4   4   4   3   3   3   3   4
Eye lvl wnd gst.17  13  11  8   6   5   5   4   4   4   4   6
Mix hgt (kft)...6.5 5.1 0.6 0.5 0.5 0.4 0.4 0.4 0.4 0.4 0.4 0.4
Transp wind dir.W   NW  NW  NW  NW  NW  NW  NW  N   NE  SE  S
Transp wind spd.28  23  14  12  8   7   8   7   6   6   7   9
Haines index....5   5   5   5   5   5   5   5   5   5   5   5

.WEDNESDAY...

Sky/weather.........Partly sunny. Chance of showers.
Max temperature.....Around 63.
Min humidity........42 percent.
Wind (20 ft)........South winds 8 to 12 mph shifting to the
                    southeast 10 to 15 mph in the afternoon.
Eye level winds.....Southeast winds 5 to 9 mph shifting to the
                    south 6 to 7 mph late in the morning, then
                    shifting to the southeast 6 to 9 mph in the
                    afternoon.
LAL.................1.
Mixing height.......5000 ft AGL.
Transport winds.....South 12 to 21 mph shifting to the southeast
                    around 24 mph late in the afternoon.
Haines Index........4 to 5 or low to moderate potential for large
                    plume dominated fire growth.

TIME (CDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........63  41  79  78  76  84  82  80  80  79  79  80
Weather cov.....    CHC CHC CHC CHC CHC CHC CHC CHC CHC CHC CHC
Weather type....    RW  RW  RW  RW  RW  RW  RW  RW  RW  RW  RW
Tstm cov........
LAL.............1   1   1   1   1   1   1   1   1   1   2   2
Temp............39  38  41  45  52  56  59  60  61  62  62  61
RH..............73  79  76  70  56  51  47  46  44  42  43  44
20 FT wind dir..S   S   S   S   S   S   S   SE  SE  SE  SE  SE
20 FT wind spd..8   8   8   10  12  12  10  10  12  14  15  15
20 FT wind gust.12  13  13  15  17  17  16  16  17  20  22  22
Eye lvl wnd dir.S   S   S   S   S   S   S   SE  SE  SE  SE  SE
Eye lvl wnd spd.5   5   5   6   7   7   6   6   7   8   9   9
Eye lvl wnd gst.7   8   8   9   10  10  10  10  10  12  13  13
Mix hgt (kft)...0.4 0.5 0.7 0.9 1.3 1.7 1.6 1.9 3.0 4.2 5.0 4.3
Transp wind dir.S   S   S   S   S   S   S   S   S   SE  SE  SE
Transp wind spd.12  12  14  17  18  16  14  13  16  21  24  24
Haines index....5   5   5   5   5   5   5   4   4   4   4   4

$$
Forecaster...Buttler
Requested by...Lyndsey Lascheck
Type of request...PRESCRIBED
.TAG 2412746.2/LBF
.DELDT 04/30/24
.FormatterVersion 2.0.0
.EMAIL lyndsey.lascheck@tnc.org