Spot Forecast Issued by NWS Des Moines, IA
000
FNUS73 KDMX 151327
FWSDMX
Spot Forecast for Otter creek lake and park...Tama county conservation
National Weather Service Des Moines IA
827 AM CDT Mon Apr 15 2024
Forecast is based on ignition time of 0900 CDT on April 15.
If conditions become unrepresentative...contact the National Weather
Service.
An initial observation at ignition and a mid burn observation are required.
Please relay them to the National Weather Service for each prescribed burn.
.DISCUSSION...
Elevated fire weather conditions can be expected today with warm
temperatures, very low humidities, and breezy southeast winds
gusting 20 to 25 mph. Only seasonally decreasing curing values and
somewhat maturing fuels have kept GFDI values from very high to
extreme values today.
.REST OF TODAY...
Sky/weather.........Sunny (0-10 percent).
Max temperature.....Around 78.
Min humidity........23 percent.
Wind (20 ft)........East winds 8 to 16 mph.
Mixing height.......4500 ft AGL.
Transport winds.....East 17 to 21 mph.
Smoke dispersal.....Fair (15800 knot-ft) early in the morning
increasing to excellent (76700 knot-ft) in the
afternoon.
GFDI................5.
Haines Index........5 or moderate potential for large plume
dominated fire growth.
TIME (CDT) 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........4 3 3 2 3 2 1 2 3
Weather cov.....
Weather type....
Tstm cov........
Temp............59 65 68 71 73 76 78 78 78
RH..............41 34 31 28 26 24 23 24 25
20 FT wind dir..E E E E E E E E E
20 FT wind spd..8 12 15 15 15 15 15 15 16
20 FT wind gust. 14 21 21 21 21 21 21 22
Mix hgt (kft)...1.1 2.1 2.8 3.2 3.7 4.1 4.3 4.5 4.3
Transp wind dir.E E E E E E E E E
Transp wind spd.17 20 20 20 18 18 18 18 21
GFDI............2 3 4 5 6 6 7 6 7
Haines index....5 5 5 5 5 5 5 5 5
SDspl kt-ft/100016 36 47 55 59 65 69 72 77
.TONIGHT...
Sky/weather.........Partly cloudy (20-30 percent) then becoming
mostly cloudy (70-80 percent). Rain showers
likely and chance of thunderstorms overnight.
Min temperature.....Around 52.
Max humidity........69 percent.
Wind (20 ft)........East winds 14 to 21 mph. Gusty and erratic
winds expected near thunderstorms overnight.
Gusty and erratic winds expected near
thunderstorms overnight.
Mixing height.......600 ft AGL.
Transport winds.....East 18 to 26 mph.
Smoke dispersal.....Excellent (76600 knot-ft) early in the evening
decreasing to poor (9700 knot-ft) late in the
night.
GFDI................6.
Haines Index........3 to 5 or very low to moderate potential for
large plume dominated fire growth.
TIME (CDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM
Sky (%).........5 16 31 62 78 85
Weather cov..... S CHC CHANCE LIKELY
Weather type....NONE NONE NONE RNSHWR RNSHWR RNSHWR
Tstm cov........ S CHC CHANCE CHANCE
Temp............77 70 64 61 60 57
RH..............25 33 45 51 53 62
20 ft wind......E 16 E 14 E 15 E 17 E 20 E 21
20 ft wind gust.23 23 25 29 30 29
Mix hgt (ft)....4000 600 600 700 800 1100
Transport wind..E 22 E 18 E 21 SE 23 E 24 SE 26
GFDI............7 5 4 5 5 4
Haines index....5 5 5 5 3 3
SDspl kt-ft/100077 10 10 13 16 26
$$
Forecaster...Jimenez
Requested by...Dustin Horne
Type of request...PRESCRIBED
.TAG 2410896.0/DMX
.DELDT 04/15/24
.FormatterVersion 2.0.0
.EMAIL Dhorne@tamacounty.org