Spot Forecast
Issued by NWS Omaha/Valley, NE
Issued by NWS Omaha/Valley, NE
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FNUS73 KOAX 301509
FWSOAX
Spot Forecast for LHPS GRASS Event...Iowa DNR
National Weather Service Omaha/Valley NE
1009 AM CDT Thu May 30 2024
Forecast is based on forecast start time of 0600 CDT on May 31.
If conditions become unrepresentative, contact the National Weather
Service.
.DISCUSSION...
TYhere will be a 50% chance of rain through the day Friday.
Thunderstorms will also be possible during the afternoon and
evening. Winds during the day will be from the southeast around 10
mph. Minimum humidity could get down to the lower 70s percent in
the afternoon.
Strongest Possible Wind Speeds on Day of Burn: 15 mph
Lowest Possible Relative Humidity on Day of Burn: 70 percent.
.FRIDAY...
Sky/weather.........Mostly cloudy (80-90 percent). Showers likely
early in the morning. Chance of thunderstorms
through the day. Chance of showers.
Max temperature.....Around 71.
Min humidity........73 percent.
Eye level winds.....Light winds becoming southeast up to 5 mph with
gusts to around 12 mph early in the morning.
Surface winds (mph).Southeast winds 6 to 9 mph with gusts to around
20 mph.
Wind (20 ft)........Southeast winds 5 to 8 mph with gusts to around
16 mph. Gusty and erratic winds expected near
thunderstorms.
Mixing height.......3200 ft AGL.
Transport winds.....Southeast 8 to 14 mph.
Smoke dispersal.....Poor (4700 knot-ft) early in the morning
increasing to good (34100 knot-ft) in the
afternoon.
GFDI................0.
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 (%).........80 78 83 88 89 89 84 85 87 87 86 83
Weather cov.....LKY CHC CHC CHC CHC CHC CHC CHC CHC CHC CHC CHC
Weather type....RW RW RW RW RW RW RW RW RW RW RW RW
Tstm cov........CHC CHC CHC CHC CHC CHC CHC CHC CHC CHC CHC CHC
Temp............61 60 62 63 65 66 67 68 69 70 70 70
RH..............97 100 96 100 89 90 87 83 80 76 75 75
20 FT wind dir..E E E E E E E SE SE SE SE SE
20 FT wind spd..4 4 5 6 6 7 7 7 7 7 7 7
20 FT wind gust.8 10 10 12 14 14 16 16 16 14 14 13
Eye lvl wnd dir.E E E E E E E SE SE SE SE SE
Eye lvl wnd spd.3 3 4 4 4 5 5 5 5 5 5 5
Eye lvl wnd gst.6 7 8 9 10 11 12 12 12 11 10 10
Surface wnd dir.E E E E E E E SE SE SE SE SE
Surface wnd spd.5 5 6 8 8 9 9 9 9 9 9 9
Surface wnd gst.10 12 13 15 17 18 20 20 20 18 17 16
Mix hgt (kft)...0.6 0.8 1.3 1.5 1.7 1.8 2.2 2.6 3.0 3.2 3.1 2.9
Transp wind dir.SE SE E SE SE SE SE SE SE SE SE SE
Transp wind spd.8 9 10 12 12 12 13 12 12 12 13 14
GFDI............0 0 0 0 0 0 0 0 0 0 0 0
Haines index....3 3 3 3 3 3 3 3 3 3 3 3
SDspl kt-ft/10005 6 9 13 17 20 23 26 30 33 34 34
.FRIDAY NIGHT...
Sky/weather.........Mostly cloudy (70-80 percent). Chance of
showers and thunderstorms in the evening, then
slight chance of showers and thunderstorms
overnight.
Min temperature.....Around 59.
Max humidity........100 percent.
Eye level winds.....Southeast winds up to 5 mph in the evening
becoming light.
Surface winds (mph).Southeast winds 6 to 9 mph in the evening
becoming light.
Wind (20 ft)........Southeast winds 5 to 6 mph in the evening
becoming light. Gusty and erratic winds
expected near thunderstorms.
Mixing height.......700 ft AGL.
Transport winds.....South 8 to 15 mph shifting to the southwest
around 8 mph early in the morning.
Smoke dispersal.....Good (31100 knot-ft) early in the evening
decreasing to poor (5200 knot-ft) late in the
night.
GFDI................0.
Haines Index........3 or very low potential for large plume
dominated fire growth.
TIME (CDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM
Sky (%).........80 71 72 72 72 72
Weather cov.....CHANCE CHANCE CHANCE CHANCE S CHC S CHC
Weather type....RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR
Tstm cov........CHANCE CHANCE CHANCE CHANCE S CHC S CHC
Temp............70 67 64 62 61 61
RH..............73 80 91 94 97 97
20 ft wind......SE 7 SE 6 SE 5 SE 4 S 3 S 2
20 ft wind gust.13 10 8 7 6 6
Eye level wind..SE 5 SE 4 SE 4 SE 3 S 2 S 1
Eye lvl wnd gst.10 8 6 5 5 4
Surface wind....SE 9 SE 8 SE 6 SE 5 S 4 S 3
Surface wnd gst.16 13 10 9 8 7
Mix hgt (ft)....2500 1600 800 700 800 800
Transport wind..S 15 S 14 S 12 S 9 S 8 SW 8
GFDI............0 0 0 0 0 0
Haines index....3 3 3 3 3 3
SDspl kt-ft/100031 21 8 5 5 6
.SATURDAY...
Sky/weather.........Mostly sunny (40-50 percent). Slight chance of
showers and thunderstorms early in the morning.
Max temperature.....Around 80.
Min humidity........53 percent.
Eye level winds.....Light winds becoming south around 4 mph in the
afternoon.
Surface winds (mph).Light winds becoming south around 6 mph in the
afternoon.
Wind (20 ft)........South winds around 5 mph early in the morning
becoming light, then becoming south around 5
mph in the afternoon. Gusty and erratic winds
expected near thunderstorms early in the
morning.
Mixing height.......5300 ft AGL.
Transport winds.....Northwest 9 to 12 mph shifting to the south
around 10 mph late in the afternoon.
Smoke dispersal.....Poor (5400 knot-ft) early in the morning
increasing to good (47100 knot-ft) in the
afternoon.
GFDI................0.
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 (%).........68 60 48 35 27 24
Weather cov.....S CHC
Weather type....RNSHWR NONE NONE NONE NONE NONE
Tstm cov........S CHC
Temp............60 62 67 73 77 78
RH..............100 96 84 70 59 54
20 ft wind......SW 2 SW 2 W 3 SW 4 S 5 S 5
20 ft wind gust.6 6 6 7 8 10
Eye level wind..SW 1 SW 1 W 2 SW 3 S 4 S 4
Eye lvl wnd gst.4 4 5 5 6 7
Surface wind....SW 3 SW 3 W 4 SW 5 S 6 S 6
Surface wnd gst.7 7 8 9 10 12
Mix hgt (ft)....800 1400 2800 4000 5000 5200
Transport wind..W 9 NW 10 NW 12 NW 10 W 10 S 10
GFDI............0 0 0 0 0 0
Haines index....3 4 4 4 4 4
SDspl kt-ft/10005 13 28 37 44 47
$$
Forecaster...NWS Omaha/Valley
Requested by...Kody Wohlers
Type of request...WILDFIRE
.TAG 2415336.0/OAX
.DELDT 05/30/24
.FormatterVersion 2.0.0
.EMAIL kwohlers@inhf.org