880
FNUS73 KDMX 111427
FWSDMX

Spot Forecast for Maynes Grove...Franklin County Conservation
National Weather Service Des Moines IA
927 AM CDT Tue Mar 11 2025

Forecast is based on ignition time of 1200 CDT on March 11.
If conditions become unrepresentative...contact the National Weather
Service.

An initial observation at ignition and a mid burn observation are required.

Please relay them to the National Weather Service for each prescribed burn.

.DISCUSSION...

Minimal fire weather concerns today, with breezy north
northeasterly winds this morning at 15 to 20 mph with gusts
around 20 to 25 mph. These winds will be the strongest in the
morning, then diminish through the afternoon and become more
northeasterly then easterly. RH values will be lowest in the
afternoon, bottoming out around 40 to 45%. An inversion will be
in place through much of the day, but the mixed layer will be
steadily growing. High temperatures today will be a bit cooler
than yesterday, with a high around 50F.

.REST OF TODAY...

Sky/weather.........Sunny (10-20 percent).
Max temperature.....Around 50.
Min humidity........39 percent.
Wind (20 ft)........Northeast winds 9 to 15 mph.
Mixing height.......2900 ft AGL.
Transport winds.....Northeast 12 to 18 mph shifting to the east 10
                    to 12 mph late in the afternoon.
Smoke dispersal.....Fair (25700 knot-ft) early in the morning
                    increasing to good (36500 knot-ft) in the
                    afternoon.
Smoke dispersal.....Fair (25700 knot-ft) early in the morning
                    increasing to good (36500 knot-ft) in the
                    afternoon.
GFDI................5.

TIME (CDT)      12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........11  16  15  12  12  18
Weather cov.....
Weather type....
Tstm cov........
Temp............41  43  45  47  49  49
RH..............57  53  47  43  40  39
20 FT wind dir..NE  NE  NE  NE  NE  E
20 FT wind spd..15  14  12  10  9   9
20 FT wind gust.21  18  14  13  10  10
Mix hgt (kft)...2.3 2.4 2.7 2.7 2.9 2.9
Transp wind dir.N   NE  NE  NE  E   E
Transp wind spd.18  14  13  12  12  10
GFDI............5   5   5   5   4   4
Vrate kt-ft/1K..37  29  29  27  29  26
Ventrate Cat....PR  PR  PR  PR  PR  PR
SDspl kt-ft/100037  29  29  27  29  26

.TONIGHT...

Sky/weather.........Mostly clear (10-20 percent).
Min temperature.....Around 30.
Max humidity........81 percent.
Wind (20 ft)........East winds 6 to 9 mph shifting to the southeast
                    6 to 7 mph overnight.
Mixing height.......400 ft AGL.
Transport winds.....East 9 to 13 mph shifting to the southeast
                    around 13 mph overnight.
Smoke dispersal.....Fair (24100 knot-ft) early in the evening
                    decreasing to poor (3500 knot-ft) late in the
                    night.
Smoke dispersal.....Fair (24100 knot-ft) early in the evening
                    decreasing to poor (3500 knot-ft) late in the
                    night.
GFDI................2.

TIME (CDT)      6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
Sky (%).........21     19     24     19     11     13
Weather cov.....
Weather type....NONE   NONE   NONE   NONE   NONE   NONE
Tstm cov........
Temp............48     44     38     36     34     32
RH..............40     47     62     67     75     81
20 ft wind......E 9    E 7    E 6    SE 7   SE 6   SE 6
20 ft wind gust.10     10     10     14     16     17
Mix hgt (ft)....2700   400    500    500    500    500
Transport wind..E 10   E 10   E 12   SE 13  SE 13  SE 13
GFDI............3      2      2      2      2      1
Vrate kt-ft/1K..24     4      5      6      6      5
Ventrate Cat....POOR   POOR   POOR   POOR   POOR   POOR
SDspl kt-ft/100024     4      5      6      6      5

.WEDNESDAY...

Sky/weather.........Sunny (5-15 percent).
Max temperature.....Around 62.
Min humidity........41 percent.
Wind (20 ft)........Southeast winds 5 to 7 mph shifting to the east
                    around 6 mph late in the afternoon.
Mixing height.......2600 ft AGL.
Transport winds.....Southeast 7 to 12 mph shifting to the northeast
                    late in the afternoon.
Smoke dispersal.....Poor (3500 knot-ft) early in the morning
                    increasing to fair (13100 knot-ft) in the
                    afternoon.
Smoke dispersal.....Poor (3500 knot-ft) early in the morning
                    increasing to fair (13100 knot-ft) in the
                    afternoon.
GFDI................2.

TIME (CDT)      6 AM      9 AM      NOON      3 PM
Sky (%).........10        8         6         10
Weather cov.....
Weather type....NONE      NONE      NONE      NONE
Tstm cov........
Temp............31        34        49        59
RH..............78        69        54        42
20 FT wind......SE 7G15   SE 6G13   S 6G10    E 6G8
Mix hgt (ft)....400       600       1300      2500
Transport wind..SE 12     S 9       S 8       E 7
GFDI............1         2         2         3
Vrate kt-ft/1K..4         5         8         13
Ventrate Cat....POOR      POOR      POOR      POOR
SDspl kt-ft/10004         5         8         13

$$
Forecaster...Hagenhoff
Requested by...Alex Meyer
Type of request...PRESCRIBED
.TAG 2505872.0/DMX
.DELDT 03/11/25
.FormatterVersion 2.0.0
.EMAIL ameyer@co.franklin.ia.us