963
FNUS73 KDLH 091358
FWSDLH

Spot Forecast for Gist Prairie Rx...Fond du Lac Forestry
National Weather Service Duluth MN
858 AM CDT Thu May 9 2024

Forecast is based on ignition time of 1000 CDT on May 09.
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...

Sunny skies with east winds influenced by Lake Superior today.
Winds will be sustained around 10 mph today at the burn site with
occasional gusts to 16-18 mph, strongest mid-day then becoming a
bit weaker in the late afternoon hours. Relative humidity values
will be around 50 percent at the planned ignition time of 1000,
falling to around 35-38 percent late afternoon. Good smoke
dispersal expected through much of the day.

This evening light winds around 5 mph or less turning more
southerly towards daybreak Friday. A cold front will move from
west to east across the region Friday afternoon, arriving at the
burn site around noon. This cold front Friday will cause
increasing west to northwest winds around 10-12 knots and
scattered showers with a few isolated thunderstorms possible.
Total precipitation amount Friday would be little, les than a
tenth of an inch.

.REST OF TODAY...

Sky/weather.........Sunny (0-10 percent).
Chance of pcpn......0 percent.
LAL.................1.
Max temperature.....Around 58.
Min humidity........38 percent.
Wind (20 ft)........East winds 9 to 12 mph.
Mixing height.......4000 ft AGL increasing to 4200 ft AGL late in
                    the afternoon.
Transport winds.....East 12 to 18 mph.
Smoke dispersal.....Good (35800-52200 knot-ft) decreasing to fair
                    (25800 knot-ft) late in the afternoon.
Haines Index........4 or low potential for large plume dominated
                    fire growth.
Pcpn amount.........0.00 inches.

TIME (CDT)      10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky cover.......CLR CLR CLR CLR CLR CLR CLR CLR
Weather cov.....
Weather type....
Tstm cov........
Chc of pcpn (%).0   0   0   0   0   0   0   0
LAL.............1   1   1   1   1   1   1   1
Temp............51  53  54  55  57  58  57  56
RH..............53  50  46  45  42  39  38  40
20 FT wind dir..E   E   E   E   E   E   E   E
20 FT wind spd..10  11  10  10  10  9   9   9
20 FT wind gust.15  14  14  15  15  15  14  14
Mix hgt (kft)...2.2 2.7 3.4 4.0 4.2 3.9 3.3 2.6
Transp wind dir.E   E   E   E   E   E   E   E
Transp wind spd.18  16  16  15  14  14  13  12
Haines index....4   4   4   4   4   4   4   4
SDspl kt-ft/100036  38  47  52  51  47  36  26

.TONIGHT...

Sky/weather.........Mostly clear (5-15 percent). Areas of frost
                    late in the evening. Widespread frost
                    overnight, then areas of frost early in the
                    morning.
Chance of pcpn......0 percent.
LAL.................1.
Min temperature.....Around 34.
Max humidity........85 percent.
Wind (20 ft)........East winds 6 to 8 mph early in the evening
                    becoming light.
Mixing height.......2100 ft AGL.
Transport winds.....East 6 to 13 mph shifting to the south 6 to 7
                    mph overnight.
Smoke dispersal.....Poor to fair (1700-21300 knot-ft) decreasing to
                    poor (1300 knot-ft) overnight.
Haines Index........4 or low potential for large plume dominated
                    fire growth.
Pcpn amount.........0.00 inches.

TIME (CDT)      6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
Sky cover.......CLEAR  CLEAR  MCLEAR MCLEAR MCLEAR MCLEAR
Weather cov.....                     AREAS  WIDSPD WIDSPD
Weather type....NONE   NONE   NONE   FROST  FROST  FROST
Tstm cov........
Chc of pcpn (%).0      0      0      0      0      0
LAL.............1      1      1      1      1      1
Temp............54     48     40     36     34     34
RH..............41     47     67     79     82     82
20 ft wind......E 8    E 5    E 2    SE 2   S 2    S 2
20 ft wind gust.14     11     7      5      5      5
Mix hgt (ft)....2100   1000   400    300    300    300
Transport wind..E 12   E 12   E 9    SE 6   S 6    S 7
Haines index....4      4      4      4      4      4
SDspl kt-ft/100021     10     3      2      1      2

.FRIDAY...

Sky/weather.........Sunny (10-20 percent) then becoming partly
                    sunny (55-65 percent). Areas of frost early in
                    the morning. Chance of rain showers in the
                    morning, then rain showers likely and chance of
                    thunderstorms in the afternoon.
Chance of pcpn......70 percent.
LAL.................1 until 1300, then 3 until 1600, then 2.
Max temperature.....Around 64.
Min humidity........47 percent.
Wind (20 ft)........Light winds becoming southwest 6 to 9 mph in
                    the morning, then shifting to the northwest 9
                    to 13 mph in the afternoon. Gusty and erratic
                    winds expected near thunderstorms early in the
                    afternoon. Gusty and erratic winds expected
                    near thunderstorms late in the afternoon.
Mixing height.......2000 ft AGL increasing to 4400 ft AGL.
Transport winds.....Southwest 7 to 12 mph shifting to the northwest
                    14 to 20 mph in the afternoon.
Smoke dispersal.....Poor to fair (1900-21700 knot-ft) increasing to
                    good to excellent (57400-75400 knot-ft).
Haines Index........4 or low potential for large plume dominated
                    fire growth.
Pcpn amount.........0.09 inches.

TIME (CDT)      6 AM   8 AM   10 AM  NOON   2 PM   4 PM
Sky cover.......MCLEAR MCLDY  MCLDY  MCLDY  MCLDY  PCLDY
Weather cov.....AREAS  CHANCE CHANCE CHANCE LIKELY LIKELY
Weather type....FROST  RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR
Tstm cov........                            CHANCE S CHC
Chc of pcpn (%).0      30     40     40     70     70
LAL.............1      1      1      1      3      2
Temp............35     44     53     57     60     61
RH..............85     68     54     55     51     48
20 ft wind......SW 3   SW 6   SW 7   W 9    NW 10  NW 12
20 ft wind gust.6      9      11     14     16     19
Mix hgt (ft)....300    700    1400   2300   3200   4400
Transport wind..S 7    SW 12  W 12   W 13   NW 16  NW 20
Haines index....4      4      4      4      4      4
SDspl kt-ft/10002      8      14     26     44     75

$$
Forecaster...Joe
Requested by...Paul Priestley
Type of request...PRESCRIBED
.TAG 2413606.0/DLH
.DELDT 05/09/24
.FormatterVersion 2.0.0
.EMAIL paulpriestley@fdlrez.com