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FNUS73 KAPX 271040
FWSAPX

Spot Forecast for Sand Lake Rx...Michigan DNR
National Weather Service Gaylord MI
640 AM EDT Fri Sep 27 2024

Forecast is based on ignition time of 1100 EDT on September 27.
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...Little cloud cover is expected at the burn site today.
Warm temperatures and no precipitation remains in the forecast
through the weekend. Light winds early this morning will give way to
an easterly breeze, which increases to around 10 mph by mid
afternoon. Gusts of 15 to 20 mph are expected this afternoon and
early evening. Humidity values lower into the lower 40s percent.

.REST OF TODAY...

Sky/weather.........Sunny (0-10 percent).
Max temperature.....Around 77.
Min humidity........42 percent.
20-foot winds.......Light winds becoming east 5 to 6 mph in the
                    afternoon.
Transport winds.....East 8 to 12 mph.
Mixing height.......1800-3700 ft AGL increasing to 4000-4700 ft AGL
                    late in the afternoon.
Haines Index........3 to 4 or very low to low potential for large
                    plume dominated fire growth.
Ventilation index...Fair to good (142.0-538.0).

TIME (EDT)      11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........3   4   3   6   8   2   8
Weather cov.....
Weather type....
Tstm cov........
Temp............68  70  71  75  74  74  76
RH..............61  55  51  43  44  44  42
20 ft wind dir..E   E   E   E   E   E   E
20 ft wind spd..5   7   7   7   9   9   9
20 ft wind gust.10  15  15  15  17  17  17
Mix hgt (kft)...1.8 3.1 3.7 4.0 4.4 4.6 4.7
Haines index....3   3   3   4   4   4   4
Transp wind dir.E   E   E   E   E   E   E
Transp wind spd.8   9   10  12  10  12  12
Vrate kt-ft.....142 285 381 462 451 529 538
Ventrate Cat....FR  FR  GD  GD  GD  GD  GD

$$
Forecaster...JZ
Requested by...Jack Money
Type of request...PRESCRIBED
.TAG 2423075.0/APX
.DELDT 09/27/24
.FormatterVersion 2.0.0
.EMAIL moneyj@michigan.gov