464
FNUS73 KAPX 301022
FWSAPX

Spot Forecast for N.Britt Rd Piles...USFS
National Weather Service Gaylord MI
522 AM EST Thu Jan 30 2025

Forecast is based on ignition time of 1000 EST on January 30.
If conditions become unrepresentative... contact the National Weather
Service.

Please contact our office at (989)732-9306, if you have questions
or concerns with this forecast.

.DISCUSSION...High pressure will move off to the east this morning,
allowing south to southwest winds to develop. Gusts of 20 to 25
mph will be common at the burn site from ignition through the
afternoon. Cloud cover will gradually depart this afternoon, with
temperatures climbing to unseasonably warm levels. Mixing heights
will be limited, below 2000 feet.

.REST OF TODAY...

Sky/weather.........Mostly cloudy (75-85 percent) then becoming
                    mostly sunny (25-35 percent).
Max temperature.....Around 39.
Min humidity........63 percent.
20-foot winds.......South winds 6 to 9 mph with gusts to around 24
                    mph.
Transport winds.....South 10 to 16 mph.
Mixing height.......400-1300 ft AGL.
Haines Index........4 or low potential for large plume dominated
                    fire growth.
Ventilation index...Poor to fair (57.0-207.0).

TIME (EST)      10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........81  79  74  49  33  30  14  11
Weather cov.....
Weather type....
Tstm cov........
Temp............22  26  29  32  34  36  36  35
RH..............74  68  66  63  64  64  67  69
20 ft wind dir..S   S   S   S   S   SW  SW  SW
20 ft wind spd..10  10  13  13  13  13  13  13
20 ft wind gust.21  21  24  24  24  21  21  21
Mix hgt (kft)...0.6 1.1 1.1 1.3 1.3 1.2 1.0 0.4
Haines index....4   4   4   4   4   4   4   4
Transp wind dir.S   S   S   S   S   S   SW  S
Transp wind spd.10  14  15  15  16  15  14  13
Vrate kt-ft.....65  145 169 189 207 173 145 57
Ventrate Cat....PR  FR  FR  FR  FR  FR  FR  PR

.TONIGHT...

Sky/weather.........Partly cloudy (25-35 percent) then becoming
                    mostly cloudy (50-60 percent).
Min temperature.....Around 21.
Max humidity........100 percent.
20-foot winds.......Southwest winds 5 to 8 mph in the evening
                    becoming light.
Transport winds.....Southwest 10 to 14 mph shifting to the
                    northwest 8 to 9 mph overnight.
Mixing height.......400 ft AGL.
Haines Index........4 or low potential for large plume dominated
                    fire growth.
Ventilation index...Poor (30.0).

TIME (EST)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........10  10  19  12  11  21  13  22  31  40  49  54
Weather cov.....
Weather type....
Tstm cov........
Temp............33  33  31  30  30  29  28  28  27  25  24  23
RH..............75  75  81  85  81  85  85  85  88  96  93  94
20 ft wind dir..SW  SW  SW  SW  SW  SW  W   W   W   N   N   N
20 ft wind spd..10  10  10  9   9   9   7   7   7   7   7   7
20 ft wind gust.15  15  15  14  14  14  12  12  12  10  10  10
Mix hgt (kft)...0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4
Haines index....4   4   4   4   4   4   4   4   4   4   4   4
Transp wind dir.SW  SW  SW  W   W   W   W   NW  NW  NW  N   N
Transp wind spd.14  13  14  13  12  10  10  9   9   8   8   8
Vrate kt-ft.....58  50  58  50  42  38  41  34  34  30  30  30
Ventrate Cat....PR  PR  PR  PR  PR  PR  PR  PR  PR  PR  PR  PR

.FRIDAY...

Sky/weather.........Mostly cloudy (65-75 percent).
Max temperature.....Around 35.
Min humidity........73 percent.
20-foot winds.......Light winds becoming north 5 to 9 mph early in
                    the morning.
Transport winds.....North 9 to 15 mph.
Mixing height.......400-1800 ft AGL.
Haines Index........4 or low potential for large plume dominated
                    fire growth.
Ventilation index...Poor to fair (38.0-259.0).

TIME (EST)      6 AM   8 AM   10 AM  NOON   2 PM   4 PM
Sky (%).........58     66     77     80     78     70
Weather cov.....
Weather type....NONE   NONE   NONE   NONE   NONE   NONE
Tstm cov........
Temp............23     24     29     34     33     32
RH..............98     99     90     74     75     73
20 ft wind dir..N      N      N      N      N      N
20 ft wind spd..7      7      8      12     12     12
20 ft wind gust.10     10     14     18     18     18
Mix hgt (ft)....400    600    700    1300   1700   1800
Haines index....4      4      4      4      4      4
Transport wind..N 10   N 9    N 12   NE 15  N 15   N 14
Vrate kt-ft.....38     51     76     197    254    254
Ventrate Cat....POOR   POOR   POOR   FAIR   FAIR   FAIR

$$
Forecaster...JZ
Requested by...K.Andree
Type of request...PRESCRIBED
.TAG 2501737.0/APX
.DELDT 01/30/25
.FormatterVersion 2.0.0
.EMAIL matthew.ball1@usda.gov,kyle.andree@usda.gov