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ia fire


FNUS73 KDMX 210903
FWSDMX

Spot Forecast for USFWS Federal Fire Training Exercise...USFWS
National Weather Service Des Moines IA
403 AM CDT Sun Oct 21 2018

Forecast is based on ignition time of 1000 CDT on October 21.
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...

Generally seasonal but dry weather is forecast from today through
Wednesday afternoon. Gusty south winds will develop late this
morning and afternoon over the region with minimum RH near 40
percent. The next chance for wetting rainfall will be Wednesday
night and Thursday mainly over Central and Western Iowa. More
chances for light rain will occur Friday and Saturday over the
entire region.


.REST OF TODAY...

Sky/weather.........Sunny (0-10 percent).
Max temperature.....Around 58.
Min humidity........38 percent.
Wind (20 ft)........Southwest winds 12 to 17 mph.
Mixing height.......1600-2600 ft AGL.
Transport winds.....South 17 to 22 mph.
Haines Index........3 to 4 OR or very low potential for large plume
                    dominated fire growth to or low potential for
                    large plume dominated fire growth.

TIME (CDT)      10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........1   2   3   4   5   6   7   8
Weather cov.....
Weather type....
Tstm cov........
Temp............40  44  48  52  55  57  58  57
RH..............59  53  46  41  38  38  39  42
20 FT wind dir..S   S   S   S   S   SW  SW  SW
20 FT wind spd..12  14  15  16  17  17  17  15
20 FT wind gust.14  18  21  23  24  25  24  22
Mix hgt (kft)...1.6 2.0 2.3 2.6 2.6 2.6 2.5 2.3
Transp wind dir.SW  SW  S   S   S   S   S   S
Transp wind spd.22  22  21  20  21  22  22  17
Haines index....4   4   3   3   3   4   4   4

.TONIGHT...

Sky/weather.........Mostly clear (10-20 percent).
Min temperature.....Around 40.
Max humidity........85 percent.
Wind (20 ft)........West winds 5 to 13 mph.
Mixing height.......300-2000 ft AGL.
Transport winds.....Southwest 3 to 10 mph.
Haines Index........3 to 4 OR or very low potential for large plume
                    dominated fire growth to or low potential for
                    large plume dominated fire growth.

TIME (CDT)      6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
Sky (%).........10     9      6      13     19     22
Weather cov.....
Weather type....NONE   NONE   NONE   NONE   NONE   NONE
Tstm cov........
Temp............55     50     47     46     45     42
RH..............47     58     68     73     76     82
20 ft wind......S 13   S 9    S 7    SW 7   SW 6   W 5
20 ft wind gust.18
Mix hgt (ft)....2000   1300   300    300    300    300
Transport wind..S 10   S 5    S 6    S 5    SW 5   SW 3
Haines index....4      4      3      3      3      3

.MONDAY...

Sky/weather.........Sunny (10-20 percent).
Max temperature.....Around 62.
Min humidity........42 percent.
Wind (20 ft)........Northwest winds 5 to 8 mph.
Mixing height.......0-300 ft AGL.
Transport winds.....West around 2 mph early in the morning.
Haines Index........4 or low potential for large plume dominated
                    fire growth early in the morning.

TIME (CDT)      6 AM      9 AM      NOON      3 PM
Sky (%).........26        20        10        3
Weather cov.....
Weather type....NONE      NONE      NONE      NONE
Tstm cov........
Temp............40        44        55        62
RH..............85        79        57        43
20 FT wind......NW 5      NW 5      NW 6      NW 8
Mix hgt (ft)....300       100       BLW100    BLW100
Transport wind..W 2       M         M         M
Haines index....4         M         M         M

$$
Forecaster...Vachalek
Requested by...Ryan Harr
Type of request...PRESCRIBED
.TAG 1817170.0/DMX
.DELDT 10/21/18
.EMAIL ryan.harr@dnr.iowa.gov