014
FNUS71 KPHI 120809
FWSPHI

Spot Forecast for LPB unit 7...The Nature Conservancy
National Weather Service Mount Holly NJ
409 AM EDT Tue Aug 12 2025

Forecast is based on ignition time of 0900 EDT on August 12.
If conditions become unrepresentative, contact the National Weather
Service.

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

.DISCUSSION...
High pressure will continue to shift to our east today. A surface
trough across our area Wednesday gives way to a cold front settling
across our area from the northwest during Thursday. The front may
stall near Delmarva Friday before dissipating into Saturday. High
pressure arrives for Saturday and Sunday, then a cold front will
approach from the northwest on Monday.

.REST OF TODAY...

Sky/weather.........Sunny (15-25 percent).
CWR.................0 percent.
Chance of pcpn......0 percent.
Max temperature.....Around 84.
Min humidity........56 percent.
Wind shift..........
Wind (20 ft)........Light winds becoming south 5 to 6 mph in the
                    afternoon.
Mixing height.......5200 ft AGL.
Transport winds.....West 5 to 7 mph shifting to the southwest 6 to
                    8 mph in the afternoon.
Smoke dispersal.....Poor (4700 knot-ft) early in the morning
                    increasing to good (30300 knot-ft) in the
                    afternoon.
ADI.................7 to 44.

TIME (EDT)      9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........7   10  9   15  23  28  29  27  20
Weather cov.....
Weather type....
Tstm cov........
CWR.............0   0   0   0   0   0   0   0   0
Chc of pcpn (%).0   0   0   0   0   0   0   0   0
Temp............71  75  78  80  82  82  82  82  81
RH..............81  71  67  60  56  56  56  58  60
20 FT wind dir..W   SW  SW  S   S   S   S   SW  S
20 FT wind spd..2   2   3   5   6   6   6   6   6
20 FT wind gust.6   6   7   8   9   10  10  10  10
Mix hgt (kft)...0.8 1.9 3.1 4.0 4.9 5.2 5.0 4.8 4.3
Transp wind dir.W   W   W   W   S   SW  SW  SW  SW
Transp wind spd.7   6   5   5   6   6   6   7   8
ADI.............7   14  18  24  35  37  36  41  44
Vrate kt-ft/1K..5   10  12  16  24  26  25  29  30
Ventrate Cat....PR  PR  PR  PR  PR  PR  PR  PR  PR

.TONIGHT...

Sky/weather.........Partly cloudy (25-35 percent) then becoming
                    mostly cloudy (50-60 percent). Patchy fog late
                    in the evening.
CWR.................0 percent.
Chance of pcpn......0 percent.
Min temperature.....Around 64.
Max humidity........100 percent.
Wind shift..........
Wind (20 ft)........South winds around 5 mph early in the evening
                    becoming light.
Mixing height.......100 ft AGL.
Transport winds.....Southwest 7 to 9 mph.
Smoke dispersal.....Fair (26800 knot-ft) early in the evening
                    decreasing to poor (500 knot-ft) late in the
                    night.
ADI.................3 to 39.

TIME (EDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........19  36  10  15  10  11  22  33  28  39  45  57
Weather cov.....                    PTY PTY PTY PTY PTY PTY PTY
Weather type....                    FOG FOG FOG FOG FOG FOG FOG
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............79  78  75  72  70  69  68  67  66  66  65  65
RH..............62  67  74  81  87  90  97  97  100 100 100 100
20 FT wind dir..SW  SW  SW  SW  SW  SW  SW  SW  SW  SW  SW  SW
20 FT wind spd..6   5   3   2   2   2   2   2   2   2   2   2
20 FT wind gust.9   8   8   7   7   7   7   7   8   7   7   7
Mix hgt (kft)...3.8 2.0 0.1 0.1 0.1 0.1 0.1 0.2 0.1 0.1 0.1 0.1
Transp wind dir.SW  SW  SW  SW  SW  SW  SW  SW  SW  W   W   W
Transp wind spd.8   9   8   7   9   9   8   9   8   8   7   7
ADI.............39  4   4   3   4   4   4   4   4   4   3   3
Vrate kt-ft/1K..27  16  1   1   1   1   1   2   1   1   1   1
Ventrate Cat....PR  PR  PR  PR  PR  PR  PR  PR  PR  PR  PR  PR

.WEDNESDAY...

Sky/weather.........Mostly cloudy (65-75 percent). Patchy fog early
                    in the morning. Chance of showers early in the
                    morning. Slight chance of thunderstorms late in
                    the morning, then showers and chance of
                    thunderstorms late in the afternoon.
CWR.................10 percent increasing to 80 percent.
Chance of pcpn......80 percent.
Max temperature.....Around 81.
Min humidity........72 percent.
Wind shift..........
Wind (20 ft)........Light winds becoming south 5 to 6 mph in the
                    late morning and afternoon. Gusty and erratic
                    winds expected near thunderstorms late in the
                    morning.
Mixing height.......3100 ft AGL.
Transport winds.....Southwest 6 to 10 mph.
Smoke dispersal.....Poor (300 knot-ft) early in the morning
                    increasing to fair (27700 knot-ft) in the
                    afternoon.
ADI.................3 to 34.

TIME (EDT)      6 AM   8 AM   10 AM  NOON   2 PM   4 PM
Sky (%).........66     78     60     64     85     85
Weather cov.....PATCHY CHANCE CHANCE CHANCE DEFNTE DEFNTE
Weather type....FOG    RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR
Tstm cov........                     S CHC  CHANCE CHANCE
CWR.............10     30     30     30     80     80
Chc of pcpn (%).10     30     30     30     80     80
Temp............65     68     75     78     80     78
RH..............100    100    84     76     72     74
20 ft wind......SW 2   S 2    S 5    S 6    S 6    SW 6
20 ft wind gust.7      8      9      12     12     12
Mix hgt (ft)....100    200    1100   2500   3100   1800
Transport wind..SW 7   SW 6   SW 6   S 8    SW 10  SW 10
ADI.............3      6      8      23     34     24
Vrate kt-ft/1K..0      1      5      18     28     16
Ventrate Cat....POOR   POOR   POOR   POOR   POOR   POOR

$$
Forecaster...MPS
Requested by...Patrick McElhenny
Type of request...PRESCRIBED
.TAG 2519735.0/PHI
.DELDT 08/12/25
.FormatterVersion 2.0.0
.EMAIL pmcelhenny@tnc.org