398
FNUS71 KPHI 171321
FWSPHI

Spot Forecast for Tyler Unit 1...Silvix
National Weather Service Mount Holly NJ
921 AM EDT Thu Apr 17 2025

Forecast is based on ignition time of 0700 EDT on April 18.
If conditions become unrepresentative, contact the National Weather
Service.

Please contact our office if you have questions
or concerns with this forecast.

.DISCUSSION...
Temperatures will be warmer on Friday as compared to the last few
days. Winds will be a bit gustier than Thursday but relative humidity
will also be a bit higher.

.FRIDAY...

Sky/weather.........Partly sunny (55-65 percent).
CWR.................0 percent.
Chance of pcpn......0 percent.
Max temperature.....Around 71.
Min humidity........35 percent.
Wind shift..........
Wind (20 ft)........Light winds becoming south around 16 mph with
                    gusts to around 31 mph.
Mixing height.......4100 ft AGL.
Transport winds.....South 9 to 16 mph increasing to 20 to 29 mph in
                    the late morning and afternoon.
Smoke dispersal.....Poor (2500 knot-ft) early in the morning
                    increasing to excellent (96500 knot-ft) in the
                    afternoon.
ADI.................9 early in the morning increasing to 105 in the
                    afternoon.

TIME (EDT)      7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........50  51  49  53  62  64  67  72  70  61  54
Weather cov.....
Weather type....
Tstm cov........
CWR.............0   0   0   0   0   0   0   0   0   0   0
Chc of pcpn (%).0   0   0   0   0   0   0   0   0   0   0
Temp............40  46  51  57  61  64  67  68  69  70  69
RH..............73  63  56  47  44  41  39  39  37  35  37
20 FT wind dir..S   S   S   S   S   S   S   S   S   S   S
20 FT wind spd..5   6   7   9   12  14  15  16  17  17  17
20 FT wind gust.7   10  13  17  22  24  26  29  30  31  31
Mix hgt (kft)...0.3 0.5 1.2 1.8 2.8 3.4 3.9 4.1 3.9 3.7 3.5
Transp wind dir.S   S   S   S   S   S   S   S   S   S   S
Transp wind spd.9   12  16  20  22  23  24  26  29  29  29
ADI.............9   9   25  44  50  58  89  99  105 103 101
Vrate kt-ft/1K..3   5   17  30  53  67  82  94  97  93  89
Ventrate Cat....PR  PR  PR  PR  FR  GD  GD  GD  GD  GD  GD

.FRIDAY NIGHT...

Sky/weather.........Partly cloudy (35-45 percent) then becoming
                    mostly cloudy (50-60 percent) then becoming
                    partly cloudy (40-50 percent) then becoming
                    mostly cloudy (55-65 percent).
CWR.................0 percent.
Chance of pcpn......0 percent.
Min temperature.....Around 58.
Max humidity........70 percent.
Wind shift..........
Wind (20 ft)........South winds 9 to 14 mph. Gusts up to 29 mph
                    early in the evening.
Mixing height.......700 ft AGL.
Transport winds.....South 16 to 25 mph shifting to the southwest 15
                    to 16 mph late in the evening.
Smoke dispersal.....Good (58600 knot-ft) early in the evening
                    decreasing to poor (8900 knot-ft) late in the
                    night.
ADI.................75 early in the evening decreasing to 12 late
                    in the night.

TIME (EDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........48  46  32  41  49  58  52  47  41  49  56  64
Weather cov.....
Weather type....
Tstm cov........
CWR.............0   0   0   0   0   0   0   0   0   0   0   0
Chc of pcpn (%).0   0   0   0   0   0   0   0   0   0   0   0
Temp............69  67  64  63  61  60  60  59  59  59  60  60
RH..............37  42  50  54  58  62  64  67  69  69  69  69
20 FT wind dir..S   S   S   S   S   S   S   S   S   S   SW  SW
20 FT wind spd..16  15  12  12  10  10  10  10  10  10  10  10
20 FT wind gust.29  26  21  21  18  18  18  18  18  18  18  18
Mix hgt (kft)...2.7 1.9 1.0 0.9 0.8 0.7 0.7 0.7 0.8 0.7 0.7 0.7
Transp wind dir.S   S   S   S   S   S   S   SW  SW  SW  SW  SW
Transp wind spd.25  21  17  16  16  15  15  16  16  16  16  16
ADI.............75  24  12  15  14  13  14  14  14  14  14  14
Vrate kt-ft/1K..59  34  15  13  11  9   10  10  11  10  10  10
Ventrate Cat....FR  PR  PR  PR  PR  PR  PR  PR  PR  PR  PR  PR

.SATURDAY...

Sky/weather.........Partly sunny (55-65 percent).
CWR.................10 percent.
Chance of pcpn......10 percent.
Max temperature.....Around 81.
Min humidity........44 percent.
Wind shift..........
Wind (20 ft)........Southwest winds 9 to 12 mph.
Mixing height.......4000 ft AGL.
Transport winds.....Southwest 17 to 23 mph.
Smoke dispersal.....Poor (12000 knot-ft) early in the morning
                    increasing to excellent (80900 knot-ft) in the
                    afternoon.
ADI.................15 early in the morning increasing to 86 in the
                    afternoon.

TIME (EDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........65  65  66  64  62  60  59  58  57  57  57  57
Weather cov.....
Weather type....
Tstm cov........
CWR.............0   0   10  10  10  10  10  10  10  10  10  10
Chc of pcpn (%).0   0   10  10  10  10  10  10  10  10  10  10
Temp............61  61  62  65  68  71  74  76  79  80  80  81
RH..............70  70  70  65  61  57  53  50  47  45  45  44
20 FT wind dir..SW  SW  SW  SW  SW  SW  SW  SW  SW  SW  SW  SW
20 FT wind spd..10  10  10  12  12  13  13  13  13  13  13  13
20 FT wind gust.20  20  21  21  22  22  23  23  23  23  23  23
Mix hgt (kft)...0.8 0.9 1.0 1.3 1.7 2.1 2.7 3.4 4.0 3.7 3.3 3.0
Transp wind dir.SW  SW  SW  SW  SW  SW  SW  W   W   W   SW  SW
Transp wind spd.17  18  20  21  22  23  23  23  23  22  22  21
ADI.............15  22  25  36  48  59  70  79  86  80  73  66
Vrate kt-ft/1K..12  14  17  24  33  42  55  68  81  71  62  53
Ventrate Cat....PR  PR  PR  PR  PR  FR  FR  GD  GD  GD  GD  FR

$$
Forecaster...RCM
Requested by...Shannon Henry
Type of request...PRESCRIBED
.TAG 2510871.0/PHI
.DELDT 04/17/25
.FormatterVersion 2.0.0
.EMAIL shannon@silvixforestry.com