Spot Forecast
Issued by NWS Milwaukee/Sullivan, WI

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Spot Forecast for Trolley Line Rx...WI DNR
National Weather Service Milwaukee/Sullivan WI
423 AM CDT Thu May 16 2024

Forecast is based on ignition time of 0700 CDT on May 16.

Please contact the National Weather Service if conditions become
unrepresentative or if you have questions/concerns about this forecast.

.DISCUSSION...

Showers and storms are expected to move into the burn area during the
early afternoon hours and periodically occur into the early evening.
Beforehand, light south winds are expected with relative humidity
falling into the 50 percentile. Smoke dispersal will likely remain
poor through the day.


.REST OF TODAY...

Sky/weather.........Becoming mostly cloudy(65-75 percent).
                    Rain showers likely and chance of thunderstorms
                    in the afternoon.
Temperature.........51 at ignition...Max 67.
RH..................68 percent at ignition...Min 55 percent.
Wind (20 ft)........Winds south at 4 mph at ignition...otherwise
                    South winds 5 to 8 mph. Gusty and erratic winds
                    expected near thunderstorms in the afternoon.
Mixing height.......400 ft AGL at ignition...otherwise 2300 ft AGL.
Transport winds.....South 12 to 18 mph.
Smoke dispersal.....Poor /3800 knot-ft/ at ignition. Max...good
                    /32700 knot-ft/.
Haines Index........3 or very low potential for large plume
                    dominated fire growth at ignition...max 3.

TIME (CDT)      7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........58  60  65  66  67  79  82  85  79  79  67
Weather cov.....                    CHC LKY LKY LKY LKY LKY
Weather type....                    RW  RW  RW  RW  RW  RW
Tstm cov........                        CHC CHC CHC CHC CHC
Temp............51  56  59  63  65  66  66  65  66  65  65
RH..............68  62  60  56  58  61  65  70  70  75  75
20 FT wind dir..S   S   S   S   S   S   S   S   S   S   S
20 FT wind spd..5   6   6   7   7   8   8   8   8   8   8
20 FT wind gust.10  10  11  12  13  14  14  14  13  13  12
Mix hgt (kft)...0.4 0.5 0.9 1.3 1.7 2.0 2.3 2.1 1.6 1.6 1.5
Transp wind dir.S   S   S   S   S   S   S   S   S   S   S
Transp wind spd.12  14  15  15  15  15  16  16  16  18  17
Haines index....3   3   3   3   3   3   3   3   3   3   3
SDspl kt-ft/10004   6   12  17  22  26  33  29  23  26  22

.TONIGHT...

Sky/weather.........Mostly cloudy becoming partly cloudy. Chance of
                    showers and thunderstorms early in the evening,
                    then slight chance of showers and thunderstorms
                    early in the evening. Patchy fog overnight.
Temperature.........Min 52.
RH..................Max 96 percent.
Wind (20 ft)........South winds 6 to 7 mph becoming light late in
                    the evening, then becoming southwest around 5
                    mph late in the evening shifting to the west
                    overnight becoming light. Gusty and erratic
                    winds expected near thunderstorms early in the
                    evening.
Mixing height.......300 ft AGL.
Transport winds.....South 9 to 15 mph shifting to the west 7 to 9
                    mph overnight.
Smoke dispersal.....Fair (16300 knot-ft) early in the evening
                    decreasing to poor (1900 knot-ft) late in the
                    night.
Haines Index........3 to 4 or very low to low potential for large
                    plume dominated fire growth.

TIME (CDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........53  54  48  47  51  57  46  48  46  42  36  45
Weather cov.....CHC CHC SCH SCH                 PTY PTY PTY PTY
Weather type....RW  RW  RW  RW                  FOG FOG FOG FOG
Tstm cov........CHC CHC SCH SCH
Temp............65  64  62  60  59  58  58  57  57  56  55  54
RH..............75  78  81  84  87  90  86  90  90  90  90  90
20 FT wind dir..S   S   S   S   SW  SW  W   W   W   W   NW  NW
20 FT wind spd..7   7   6   6   4   5   5   5   5   5   5   4
20 FT wind gust.11  10  10  7   7   7   7   7   6   6   6   6
Mix hgt (kft)...1.3 0.7 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.3 0.3
Transp wind dir.S   S   S   S   S   SW  SW  W   W   SW  W   NW
Transp wind spd.15  12  9   9   9   9   9   9   7   7   7   7
Haines index....3   3   3   3   3   3   3   4   4   4   4   4
SDspl kt-ft/100016  7   3   3   3   3   3   3   2   2   2   2

$$
Forecaster...Gehring
Requested by...Aaron Wright
Type of request...PRESCRIBED
.TAG 2414257.0/MKX
.DELDT 05/16/24
.FormatterVersion 2.0.0
.EMAIL Aaron.Wright@Wisconsin.gov