← Previous April 24, 2024 8:38 AM
FNUS73 KOAX 241338
FWSOAX
Spot Forecast for Riverton WMA HQ Tract...Partner Agency
National Weather Service Omaha/Valley NE
838 AM CDT Wed Apr 24 2024
Forecast is based on ignition time of 0900 CDT on April 24.
If conditions become unrepresentative, contact the National Weather
Service.
.DISCUSSION...
Calm winds are gradually becoming easterly this morning. Winds
will increase through the late morning to speeds of 5 to 10 mph
with gusts up to 12 mph possible. Winds will remain at this speed
throughout the afternoon and into the evening. Relative humidity
values will decrease throughout the afternoon before reaching
their minimum value of 31 percent around 5-6 pm. Relative
humidity will recover overnight.
Cloud cover will increase throughout the day with high
temperatures reaching into the upper 60s. A few sprinkles or light
rain showers will be possible tonight.
Strongest Possible Wind Speeds on Day of Burn: 13 mph
Lowest Possible Relative Humidity on Day of Burn: 27%
.REST OF TODAY...
Sky/weather.........Sunny (20-30 percent).
Max temperature.....Around 69.
Min humidity........31 percent.
Eye level winds.....Light winds becoming east around 4 mph late in
the morning, then becoming light early in the
afternoon becoming southeast around 4 mph late
in the afternoon.
Surface winds (mph).Light winds becoming east around 6 mph late in
the morning, then becoming light early in the
afternoon becoming southeast around 6 mph late
in the afternoon.
Wind (20 ft)........Light winds becoming east around 5 mph late in
the morning, then becoming light early in the
afternoon becoming southeast around 5 mph late
in the afternoon.
Mixing height.......6500 ft AGL.
Transport winds.....Northeast 5 to 7 mph shifting to the southeast
6 to 7 mph late in the afternoon.
Smoke dispersal.....Poor (3000 knot-ft) early in the morning
increasing to good (33800 knot-ft) in the
afternoon.
GFDI................0.
Haines Index........4 or low potential for large plume dominated
fire growth.
TIME (CDT) 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........37 27 30 18 12 22 19 22 27
Weather cov.....
Weather type....
Tstm cov........
Temp............48 56 60 63 65 67 68 69 69
RH..............75 59 47 41 35 31 32 31 31
20 FT wind dir..NE E E E E E E SE SE
20 FT wind spd..4 4 5 5 5 4 4 5 5
20 FT wind gust.5 6 6 6 6 6 6 6 7
Eye lvl wnd dir.NE E E E E E E SE SE
Eye lvl wnd spd.3 3 4 4 4 3 3 4 4
Eye lvl wnd gst.4 4 5 4 4 5 5
Surface wnd dir.NE E E E E E E SE SE
Surface wnd spd.5 5 6 6 6 5 5 6 6
Surface wnd gst.6 7 7 7 8 7 7 8 9
Mix hgt (kft)...0.9 1.5 4.3 5.4 5.9 6.0 6.4 6.5 6.4
Transp wind dir.E E NE NE NE NE SE SE S
Transp wind spd.7 5 6 5 6 6 6 6 7
GFDI............0 0 0 0 0 0 0 0 0
Haines index....4 4 4 4 4 4 4 4 4
SDspl kt-ft/10003 6 14 22 30 33 34 33 30
.TONIGHT...
Sky/weather.........Partly cloudy (30-40 percent) then becoming
mostly cloudy (60-70 percent). Chance of
sprinkles late in the evening. Slight chance of
rain showers overnight.
Min temperature.....Around 49.
Max humidity........73 percent.
Eye level winds.....Southeast winds up to 6 mph.
Surface winds (mph).Southeast winds 8 to 10 mph.
Wind (20 ft)........Southeast winds 6 to 9 mph.
Mixing height.......400 ft AGL.
Transport winds.....Southeast 8 to 17 mph.
Smoke dispersal.....Fair (26600 knot-ft) early in the evening
decreasing to poor (4200 knot-ft) late in the
night.
GFDI................0.
Haines Index........4 or low potential for large plume dominated
fire growth.
TIME (CDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM
Sky (%).........28 39 56 51 73 77
Weather cov..... CHANCE CHANCE S CHC S CHC
Weather type....NONE NONE RNSHWR RNSHWR RNSHWR RNSHWR
Tstm cov........
Temp............68 64 55 54 53 51
RH..............32 37 56 61 64 69
20 ft wind......SE 6 SE 6 SE 6 SE 7 SE 8 SE 8
20 ft wind gust.7 8 10 10
Eye level wind..SE 4 SE 4 SE 4 SE 5 SE 6 SE 6
Eye lvl wnd gst.5 5 6 8 8
Surface wind....SE 8 SE 8 SE 8 SE 9 SE 10 SE 10
Surface wnd gst.9 10 13 13
Mix hgt (ft)....6000 500 400 500 500 500
Transport wind..S 8 SE 10 SE 14 SE 15 SE 16 SE 16
GFDI............0 0 0 0 0 0
Haines index....4 4 4 4 4 4
SDspl kt-ft/100027 16 5 5 7 8
.THURSDAY...
Sky/weather.........Mostly cloudy (75-85 percent). Slight chance of
rain showers early in the morning, then chance
of rain showers. Slight chance of thunderstorms
in the afternoon.
Max temperature.....Around 66.
Min humidity........54 percent.
Eye level winds.....Southeast winds 7 to 13 mph. Gusts up to 31 mph
in the late morning and afternoon.
Surface winds (mph).Southeast winds 11 to 21 mph. Gusts up to 31
mph in the late morning and afternoon.
Wind (20 ft)........Southeast winds 10 to 18 mph. Gusts up to 31
mph in the late morning and afternoon. Gusty
and erratic winds expected near thunderstorms
in the afternoon.
Mixing height.......2900 ft AGL.
Transport winds.....Southeast 16 to 25 mph increasing to 29 to 31
mph in the afternoon.
Smoke dispersal.....Poor (7000 knot-ft) early in the morning
increasing to excellent (77900 knot-ft) in the
afternoon.
GFDI................1.
Haines Index........3 to 4 or very low to low potential for large
plume dominated fire growth.
TIME (CDT) 6 AM 8 AM 10 AM NOON 2 PM 4 PM
Sky (%).........76 73 85 83 77 86
Weather cov.....S CHC CHANCE CHANCE CHANCE CHANCE CHANCE
Weather type....RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR
Tstm cov........ S CHC S CHC
Temp............51 51 55 60 64 65
RH..............70 72 71 62 56 56
20 ft wind......SE 9 SE 10 SE 11 SE 15 SE 16 SE 17
20 ft wind gust.11 13 18 22 23 24
Eye level wind..SE 7 SE 8 SE 8 SE 11 SE 12 SE 13
Eye lvl wnd gst.8 10 13 17 17 18
Surface wind....SE 11 SE 13 SE 14 SE 19 SE 20 SE 21
Surface wnd gst.14 16 22 28 29 30
Mix hgt (ft)....600 600 1400 1800 2200 2900
Transport wind..SE 16 SE 20 SE 24 SE 25 SE 31 SE 31
GFDI............0 0 1 1 1 1
Haines index....4 4 4 4 3 3
SDspl kt-ft/10007 13 29 52 71 78
.FORECAST DAYS 3 THROUGH 5...
.FRIDAY...
Showers and chance of thunderstorms. Lows in the lower 50s. Highs
in the mid 70s. Southeast winds around 20 mph.
.SATURDAY...
Partly cloudy. Chance of showers and thunderstorms. Lows in the
mid 50s. Highs in the upper 70s. South winds around 20 mph.
.SUNDAY...
Showers and chance of thunderstorms. Lows in the upper 50s. Highs
in the lower 70s. South winds around 14 mph.
$$
Forecaster...Nicolaisen
Requested by...Matt Dollison
Type of request...PRESCRIBED
.TAG 2412255.0/OAX
.DELDT 04/24/24
.FormatterVersion 2.0.0
.EMAIL [email protected]