Spot Forecast
Issued by NWS Des Moines, IA

Home | Current Version | Previous Version | Graphics & Text | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
000
FNUS73 KDMX 281405
FWSDMX

Spot Forecast for big marsh E 14...Iowa DNR
National Weather Service Des Moines IA
905 AM CDT Thu Mar 28 2024

Forecast is based on ignition time of 1000 CDT on March 28.
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...

Quiet conditions expected today with light winds. Poor dispersion is
expected early this morning with increasing winds in the afternoon hours.
No other fire concerns are expected today. Showers will return to the region
later in the period.

.REST OF TODAY...

Sky/weather.........Sunny (10-20 percent).
Max temperature.....Around 46.
Min humidity........50 percent.
Wind (20 ft)........Light winds.
Mixing height.......2900 ft AGL.
Transport winds.....West 6 to 8 mph shifting to the southeast
                    around 5 mph late in the afternoon.
Smoke dispersal.....Poor (7400 knot-ft) early in the morning
                    increasing to fair (18100 knot-ft) in the
                    afternoon.
GFDI................1.
Haines Index........3 to 4 or very low to low potential for large
                    plume dominated fire growth.

TIME (CDT)      10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........26  17  8   11  12  15  9   11
Weather cov.....
Weather type....
Tstm cov........
Temp............32  36  39  41  42  44  45  46
RH..............58  54  52  50  50  51  51  53
20 FT wind dir..N   N   N   N   NW  W   W   N
20 FT wind spd..3   3   3   2   2   2   3   3
20 FT wind gust.                        6   6
Mix hgt (kft)...1.5 1.7 2.3 2.6 2.5 2.8 2.9 2.8
Transp wind dir.W   W   W   W   W   W   SW  SE
Transp wind spd.6   7   8   8   7   7   7   5
GFDI............1   1   1   1   1   1   1   1
Haines index....3   3   3   4   4   4   4   4
SDspl kt-ft/10007   10  16  18  15  17  17  11

.TONIGHT...

Sky/weather.........Partly cloudy (25-35 percent) then becoming
                    mostly cloudy (50-60 percent).
Min temperature.....Around 29.
Max humidity........84 percent.
Wind (20 ft)........Light winds becoming northeast 5 to 7 mph in
                    the evening and overnight, then shifting to the
                    east 8 to 9 mph after 3 am.
Mixing height.......300 ft AGL.
Transport winds.....East 5 to 14 mph increasing to around 15 mph
                    after 3 am.
Smoke dispersal.....Poor (2200 knot-ft).
GFDI................2.
Haines Index........3 to 4 or very low to low potential for large
                    plume dominated fire growth.

TIME (CDT)      6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
Sky (%).........12     11     10     12     27     47
Weather cov.....
Weather type....NONE   NONE   NONE   NONE   NONE   NONE
Tstm cov........
Temp............45     40     34     31     29     30
RH..............55     67     76     84     84     83
20 ft wind......N 3    NE 6   NE 7   E 6    E 7    E 8
20 ft wind gust.5      7      9      9      13     15
Mix hgt (ft)....2000   300    400    400    400    400
Transport wind..E 5    NE 8   NE 10  E 12   E 13   E 15
GFDI............1      1      1      1      1      2
Haines index....4      4      4      4      3      3
SDspl kt-ft/10008      2      3      4      4      6

.FRIDAY...

Sky/weather.........Mostly cloudy (70-80 percent). Slight chance of
                    rain showers in the afternoon.
Max temperature.....Around 59.
Min humidity........61 percent.
Wind (20 ft)........Southeast winds 9 to 18 mph.
Mixing height.......2000 ft AGL.
Transport winds.....Southeast 16 to 22 mph.
Smoke dispersal.....Poor (6600 knot-ft) early in the morning
                    increasing to good (35200 knot-ft) in the
                    afternoon.
GFDI................7 increasing to 11 late in the afternoon.
Haines Index........3 or very low potential for large plume
                    dominated fire growth.

TIME (CDT)      6 AM      9 AM      NOON      3 PM
Sky (%).........64        78        83        88
Weather cov.....                              S CHC
Weather type....NONE      NONE      NONE      RNSHWR
Tstm cov........
Temp............31        35        50        57
RH..............83        92        62        62
20 FT wind......E 9G17    SE 13G18  SE 15G23  SE 18G26
Mix hgt (ft)....500       1000      1600      1900
Transport wind..E 16      SE 20     SE 21     SE 22
GFDI............2         3         7         11
Haines index....3         3         3         3
SDspl kt-ft/10007         17        29        35

$$
Forecaster...Vachalek
Requested by...Adam Kulow
Type of request...PRESCRIBED
.TAG 2408755.0/DMX
.DELDT 03/28/24
.FormatterVersion 2.0.0
.EMAIL adam.kulow@dnr.iowa.gov


USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.