Spot Forecast
Issued by NWS Duluth, MN
Issued by NWS Duluth, MN
646
FNUS73 KDLH 071024
FWSDLH
Spot Forecast for Seagull Helispot Rx...USFS
National Weather Service Duluth MN
524 AM CDT Tue May 7 2024
Forecast is based on ignition time of 0900 CDT on May 07.
If there are questions or concerns with this forecast, or if
conditions become unrepresentative, contact the National
Weather Service in Duluth at 218-729-0653.
.DISCUSSION...
Easterly winds are expected to continue increasing in speed
into the afternoon. Breezy conditions should keep smoke dispersal
conditions excellent by this afternoon. Cloud cover will also be
on the increase with rain showers moving in starting around noon
and increasing in intensity through the afternoon. There may be
some downsloping effects due to the North Shore ridge that may
keep total rainfall totals down to around 0.1" to 0.2" through
Wednesday. RH is expected to tumble to around 35-40% in the early
afternoon, but there`s some uncertainty on just how dry it will
get as it depends on how quickly rain moves in. After rain does
move in during the early afternoon, expect RH values to rise.
.REST OF TODAY...
Sky/weather.........Partly sunny (60-70 percent) then becoming
cloudy (85-95 percent). Slight chance of rain
showers early in the afternoon, then rain
showers likely late in the afternoon.
Chance of pcpn......70 percent.
LAL.................1.
Max temperature.....Around 61.
Min humidity........36 percent.
Wind (20 ft)........East winds 16 to 21 mph with gusts to around 33
mph.
Mixing height.......3800 ft AGL increasing to 4200 ft AGL in the
afternoon.
Transport winds.....Southeast 25 to 30 mph increasing to 31 to 37
mph late in the morning.
Smoke dispersal.....Good (46800 knot-ft) increasing to excellent
(70500-106900 knot-ft) late in the morning,
then increasing to excellent (107300-133100
knot-ft) early in the afternoon decreasing to
excellent (84300-102600 knot-ft) late in the
afternoon.
Haines Index........4 or low potential for large plume dominated
fire growth.
Pcpn amount.........0.05 inches.
TIME (CDT) 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky cover.......PC MC MC MC MC MC MC MC CDY
Weather cov..... SCH CHC CHC LKY LKY LKY
Weather type.... RW RW RW RW RW RW
Tstm cov........
Chc of pcpn (%).0 0 10 20 30 50 70 70 70
LAL.............1 1 1 1 1 1 1 1 1
Temp............56 59 61 61 61 60 58 58 57
RH..............53 47 42 38 36 42 45 44 47
20 FT wind dir..E E E E E E E E E
20 FT wind spd..17 18 19 20 21 20 19 18 17
20 FT wind gust.27 28 29 32 32 33 32 29 28
Mix hgt (kft)...2.1 2.7 3.6 3.8 4.2 3.4 3.1 3.4 3.1
Transp wind dir.SE SE SE SE SE SE SE SE E
Transp wind spd.25 30 35 37 37 37 35 35 31
Haines index....4 4 4 4 4 4 4 4 4
SDspl kt-ft/100047 71 107 121 133 107 92 103 84
.TONIGHT...
Sky/weather.........Mostly cloudy (80-90 percent). Rain showers
likely.
Chance of pcpn......60 percent.
LAL.................1.
Min temperature.....Around 42.
Max humidity........86 percent.
Wind (20 ft)........East winds 8 to 16 mph. Gusts up to 28 mph
early in the evening.
Mixing height.......2700 ft AGL.
Transport winds.....East 23 to 28 mph decreasing to 12 to 16 mph
early in the evening.
Smoke dispersal.....Excellent (65100 knot-ft) decreasing to poor to
fair (8000-14100 knot-ft).
Haines Index........3 to 4 or very low to low potential for large
plume dominated fire growth.
Pcpn amount.........0.09 inches.
TIME (CDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM
Sky cover.......CLOUDY CLOUDY CLOUDY CLOUDY CLOUDY MCLDY
Weather cov.....LIKELY LIKELY LIKELY LIKELY LIKELY CHANCE
Weather type....RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR
Tstm cov........
Chc of pcpn (%).60 60 60 60 60 50
LAL.............1 1 1 1 1 1
Temp............55 51 48 46 45 44
RH..............51 63 74 83 86 86
20 ft wind......E 16 E 13 E 10 E 8 E 8 E 8
20 ft wind gust.25 19 14 13 13 14
Mix hgt (ft)....2700 1000 1000 800 800 900
Transport wind..SE 28 E 16 E 13 E 12 E 13 E 13
Haines index....4 4 4 4 3 3
SDspl kt-ft/100065 14 11 9 9 10
.WEDNESDAY...
Sky/weather.........Partly sunny (55-65 percent). Chance of rain
showers in the morning, then slight chance of
rain showers in the afternoon.
Chance of pcpn......50 percent.
LAL.................1.
Max temperature.....Around 60.
Min humidity........47 percent.
Wind (20 ft)........Northeast winds 8 to 9 mph.
Mixing height.......2800 ft AGL increasing to 4700 ft AGL in the
afternoon.
Transport winds.....East 12 to 14 mph.
Smoke dispersal.....Poor to fair (9100-28000 knot-ft) increasing to
good (37500-56700 knot-ft) in the afternoon.
Haines Index........3 or very low potential for large plume
dominated fire growth.
Pcpn amount.........0.03 inches.
TIME (CDT) 6 AM 8 AM 10 AM NOON 2 PM 4 PM
Sky cover.......MCLDY MCLDY MCLDY MCLDY MCLDY PCLDY
Weather cov.....CHANCE CHANCE CHANCE CHANCE S CHC S CHC
Weather type....RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR
Tstm cov........
Chc of pcpn (%).50 30 30 30 20 20
LAL.............1 1 1 1 1 1
Temp............44 47 51 54 56 58
RH..............82 76 71 59 55 49
20 ft wind......E 9 E 9 E 9 NE 8 NE 8 NE 8
20 ft wind gust.13 13 12 13 12 11
Mix hgt (ft)....900 1700 2500 3500 4400 4700
Transport wind..E 12 E 13 E 13 E 13 E 14 E 14
Haines index....3 3 3 3 3 3
SDspl kt-ft/10009 18 28 38 54 57
$$
Forecaster...Josh
Requested by...Drew Augustyn
Type of request...PRESCRIBED
.TAG 2413278.0/DLH
.DELDT 05/07/24
.FormatterVersion 2.0.0
.EMAIL andrew.augustyn@usda.gov