Text Products for FWS Issued by DLH

Spot Forecast
Issued by NWS Duluth, MN
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FNUS73 KDLH 252334
FWSDLH

Spot Forecast for Riley WMA...USFS
National Weather Service Duluth MN
634 PM CDT Thu Apr 25 2024

Forecast is based on ignition time of 1900 CDT on April 25.
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...

South winds persist this evening with speeds around 10 mph, a few
gusts to 15-20 mph are possible before sunset. Relative humidity
values will recover to around 35 percent by sunset (approximately
2000 CDT) and rising to around 45-50 percent through the night.
Smoke dispersal will decrease to poor in the overnight hours.

Clouds increase late tonight into Friday morning, which combined
with more moist air moving in will cause relative humidity values
to rise through the day. Winds will increase in intensity out of
the southeast at 10-15 mph with gusts as strong as 25-30 mph on
Friday afternoon. Rain arrives towards Friday evening - Less than
a 20 percent chance of rain before 4 PM (1600 CDT) on Friday,
quickly rising to a near 100% chance in the 7 PM to 1 AM timeframe
Friday evening. Rainfall amounts Friday/Friday night will amount
to a quarter to a half inch.


.REST OF TONIGHT...

Sky/weather.........Mostly clear (15-25 percent).
Chance of pcpn......0 percent.
LAL.................1.
Min temperature.....Around 36.
Max humidity........51 percent.
Wind (20 ft)........Southeast winds 6 to 10 mph. Gusts up to 20 mph
                    overnight then 21 mph after 3 am.
Mixing height.......1900 ft AGL.
Transport winds.....Southeast 12 to 16 mph.
Smoke dispersal.....Poor to fair (7300-25900 knot-ft) decreasing to
                    poor (5600 knot-ft) in the late evening and
                    overnight.
Haines Index........5 or moderate potential for large plume
                    dominated fire growth.
Pcpn amount.........0.00 inches.

TIME (CDT)      7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky cover.......CLR CLR CLR MCR MCR MCR MCR MCR PC  PC  PC
Weather cov.....
Weather type....
Tstm cov........
Chc of pcpn (%).0   0   0   0   0   0   0   0   0   0   0
LAL.............1   1   1   1   1   1   1   1   1   1   1
Temp............55  51  47  45  44  42  41  39  36  36  36
RH..............31  37  44  48  48  48  47  45  46  45  51
20 FT wind dir..S   S   SE  SE  SE  SE  SE  SE  SE  SE  SE
20 FT wind spd..8   7   8   7   9   10  9   9   9   9   10
20 FT wind gust.13  14  14  15  16  16  18  16  16  18  19
Mix hgt (kft)...1.9 0.7 0.6 0.5 0.5 0.6 0.5 0.5 0.6 0.6 0.6
Transp wind dir.S   S   S   SE  S   S   S   SE  SE  SE  SE
Transp wind spd.13  13  12  14  15  15  15  15  15  15  16
Haines index....5   5   5   5   5   5   5   5   5   5   5
SDspl kt-ft/100026  8   6   7   7   8   7   7   7   7   9

.FRIDAY...

Sky/weather.........Partly sunny (60-70 percent) then becoming
                    cloudy (85-95 percent). Slight chance of rain
                    showers late in the afternoon. Chance of rain
                    showers late in the afternoon.
Chance of pcpn......30 percent.
LAL.................1.
Max temperature.....Around 57.
Min humidity........36 percent.
Wind (20 ft)........Southeast winds 12 to 17 mph with gusts to
                    around 27 mph.
Mixing height.......2500 ft AGL increasing to 3000 ft AGL in the
                    afternoon.
Transport winds.....Southeast 16 to 25 mph increasing to 29 to 33
                    mph in the late morning and afternoon.
Smoke dispersal.....Poor to fair (8900-29300 knot-ft) increasing to
                    excellent (64000-89300 knot-ft).
Haines Index........4 to 5 or low to moderate 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.......PCLDY  MCLDY  MCLDY  MCLDY  MCLDY  CLOUDY
Weather cov.....                                   S CHC
Weather type....NONE   NONE   NONE   NONE   NONE   RNSHWR
Tstm cov........
Chc of pcpn (%).0      0      0      10     10     20
LAL.............1      1      1      1      1      1
Temp............35     40     50     55     56     55
RH..............61     61     43     38     36     40
20 ft wind......SE 11  SE 13  SE 16  SE 16  SE 19  SE 19
20 ft wind gust.20     22     25     28     30     28
Mix hgt (ft)....600    1500   2300   2800   3000   3000
Transport wind..SE 17  S 23   SE 29  SE 31  SE 33  SE 32
Haines index....5      5      5      5      4      4
SDspl kt-ft/100010     29     57     75     89     84

.FRIDAY NIGHT...

Sky/weather.........Cloudy (85-95 percent). Slight chance of
                    thunderstorms in the evening. Rain showers
                    through the night. Chance of thunderstorms
                    overnight.
Chance of pcpn......100 percent.
LAL.................1 until 2200, then 2 until 0400, then 3.
Min temperature.....Around 44.
Max humidity........99 percent.
Wind (20 ft)........Southeast winds 13 to 18 mph. Gusts up to 31
                    mph. Gusty and erratic winds expected near
                    thunderstorms in the late evening and
                    overnight.
Mixing height.......2000 ft AGL.
Transport winds.....Southeast 22 to 30 mph decreasing to 17 to 20
                    mph after 3 am.
Smoke dispersal.....Good (35800-56100 knot-ft) decreasing to poor
                    (12900 knot-ft).
Haines Index........3 to 4 or very low to low potential for large
                    plume dominated fire growth.
Pcpn amount.........0.29 inches.

TIME (CDT)      6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
Sky cover.......CLOUDY CLOUDY CLOUDY CLOUDY MCLDY  CLOUDY
Weather cov.....CHANCE DEFNTE DEFNTE DEFNTE DEFNTE DEFNTE
Weather type....RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR
Tstm cov........              S CHC  S CHC  S CHC  CHANCE
Chc of pcpn (%).40     90     90     90     100    100
LAL.............1      1      2      2      2      3
Temp............54     48     47     48     47     46
RH..............47     63     70     77     87     97
20 ft wind......SE 19  SE 19  SE 18  SE 16  SE 15  SE 13
20 ft wind gust.28     27     26     23     21     20
Mix hgt (ft)....2000   1800   1700   1500   1200   900
Transport wind..SE 30  SE 29  SE 29  SE 25  SE 22  SE 18
Haines index....4      3      3      3      3      3
SDspl kt-ft/100056     46     43     34     24     14

.SATURDAY...

Sky/weather.........Mostly cloudy (80-90 percent). Rain showers and
                    chance of thunderstorms.
Chance of pcpn......100 percent.
LAL.................3 until 1000, then 2 until 1300, then 3 until
                    1600, then 2.
Max temperature.....Around 66.
Min humidity........67 percent.
Wind (20 ft)........South winds 12 to 17 mph shifting to the
                    southwest 16 to 18 mph in the afternoon. Gusts
                    up to 30 mph. Gusty and erratic winds expected
                    near thunderstorms early in the morning. Gusty
                    and erratic winds expected near thunderstorms
                    in the late morning and afternoon.
Mixing height.......2300 ft AGL increasing to 3900 ft AGL in the
                    afternoon.
Transport winds.....South 16 to 23 mph shifting to the southwest 25
                    to 32 mph in the afternoon.
Smoke dispersal.....Poor to fair (12200-28300 knot-ft) increasing
                    to excellent (73600-104900 knot-ft).
Haines Index........3 or very low potential for large plume
                    dominated fire growth.
Pcpn amount.........0.24 inches.

TIME (CDT)      6 AM   8 AM   10 AM  NOON   2 PM   4 PM
Sky cover.......MCLDY  CLOUDY CLOUDY MCLDY  MCLDY  MCLDY
Weather cov.....DEFNTE DEFNTE DEFNTE DEFNTE DEFNTE DEFNTE
Weather type....RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR
Tstm cov........CHANCE CHANCE S CHC  S CHC  CHANCE S CHC
Chc of pcpn (%).100    90     90     90     90     90
LAL.............3      3      2      2      3      2
Temp............48     53     60     63     65     66
RH..............96     92     87     81     74     69
20 ft wind......SE 12  S 13   S 15   SW 19  SW 19  SW 16
20 ft wind gust.19     22     23     27     27     23
Mix hgt (ft)....900    1100   1600   3000   3800   3900
Transport wind..SE 16  S 16   S 20   SW 28  SW 32  SW 29
Haines index....3      3      3      3      3      3
SDspl kt-ft/100012     16     28     74     105    97

$$
Forecaster...Joe
Requested by...Joanie Lawrence
Type of request...PRESCRIBED
.TAG 2412265.2/DLH
.DELDT 04/25/24
.FormatterVersion 2.0.0
.EMAIL joan.lawrence@usda.gov
National Weather Service Weather Forecast Office
