118
FNUS71 KPHI 131950
FWSPHI
SPOT FORECAST FOR 2026 LARGE SCALE EVENTS (SEPA)...PA DCNR BOF
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
350 PM EDT SAT JUN 13 2026
FORECAST IS BASED ON FORECAST START TIME OF 1600 EDT ON JUNE 13.
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 RESULT IN DRIER CONDITIONS FOR THE REST
OF THIS AFTERNOON AND THROUGH TONIGHT. A STRONG COLD FRONT ARRIVES LATER
SUNDAY WITH SHOWERS AND SOME THUNDERSTORMS INCREASING DURING THE AFTERNOON
AND EVENING. SOME THUNDERSTORMS COULD PRODUCE LOCALLY GUSTY TO DAMAGING WINDS
LATER SUNDAY AFTERNOON. SOUTHERLY WINDS WILL INCREASE DURING SUNDAY AHEAD
OF THE COLD FRONT AND BECOME GUSTY AT TIMES.
REST OF TODAY
SKY/WEATHER.........SUNNY (0-5 PERCENT).
CHANCE OF PCPN......0 PERCENT.
MAX TEMPERATURE.....AROUND 89.
MIN HUMIDITY........32-37 PERCENT.
DEWPOINT............56.
SURFACE WINDS (MPH).WEST WINDS 8 TO 9 MPH.
WIND (20 FT)........WEST WINDS 6 TO 8 MPH.
MIXING HEIGHT.......6400 FT AGL.
TRANSPORT WINDS.....WEST AROUND 13 MPH.
SMOKE DISPERSAL.....EXCELLENT (67100 KNOT-FT).
ADI.................102.
TIME (EDT) 4PM 5PM
SKY (%).........1 3
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CHC OF PCPN (%).0 0
TEMP............87 87
DEWPOINT........56 56
RH..............35 35
20 FT WIND DIR..W W
20 FT WIND SPD..9 9
20 FT WIND GUST.14 14
SURFACE WND DIR.W W
SURFACE WND SPD.9 9
SURFACE WND GST.14 14
MIX HGT (KFT)...6.4 6.3
TRANSP WIND DIR.W W
TRANSP WIND SPD.13 13
ADI.............102 102
VRATE KT-FT/1K..83 82
VENTRATE CAT....GD GD
TONIGHT
SKY/WEATHER.........BECOMING PARTLY CLOUDY (20-30 PERCENT).
CHANCE OF PCPN......0 PERCENT.
MIN TEMPERATURE.....AROUND 67.
MAX HUMIDITY........70-76 PERCENT.
DEWPOINT............57.
SURFACE WINDS (MPH).WEST WINDS 5 TO 9 MPH DECREASING TO SOUTHWEST
AROUND 5 MPH IN THE LATE EVENING AND OVERNIGHT.
WIND (20 FT)........WEST WINDS UP TO 6 MPH EARLY IN THE EVENING
BECOMING LIGHT.
MIXING HEIGHT.......400 FT AGL.
TRANSPORT WINDS.....WEST 7 TO 13 MPH.
SMOKE DISPERSAL.....EXCELLENT (74600 KNOT-FT) EARLY IN THE EVENING
DECREASING TO POOR (1900 KNOT-FT) LATE IN THE
NIGHT.
ADI.................93 EARLY IN THE EVENING DECREASING TO 3 LATE IN
THE NIGHT.
TIME (EDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........5 11 13 20 37 37 27 29 32 34 40 47
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CHC OF PCPN (%).0 0 0 0 0 0 0 0 0 0 0 0
TEMP............86 84 81 79 77 75 73 72 71 70 68 68
DEWPOINT........56 57 58 58 58 58 58 58 58 58 58 58
RH..............37 39 45 50 53 56 59 61 64 67 70 71
20 FT WIND DIR..W W W W W W W SW SW SW SW SW
20 FT WIND SPD..9 8 6 5 5 5 3 5 3 3 3 3
20 FT WIND GUST.14 12 9 7 7 7 7 7 7 7 7 7
SURFACE WND DIR.W W W W W W W SW SW SW SW SW
SURFACE WND SPD.9 8 6 5 5 5 3 5 3 3 3 3
SURFACE WND GST.14 12 9 7 7 7 7 7 7 7 7 7
MIX HGT (KFT)...4.9 1.0 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4
TRANSP WIND DIR.W W W W W W W W SW SW SW SW
TRANSP WIND SPD.13 12 8 7 7 7 7 7 7 7 7 7
ADI.............93 6 4 4 4 4 3 4 4 3 3 3
VRATE KT-FT/1K..75 54 13 4 6 6 4 4 3 3 3 3
VENTRATE CAT....GD FR PR PR PR PR PR PR PR PR PR PR
SUNDAY
SKY/WEATHER.........MOSTLY SUNNY (40-50 PERCENT) THEN BECOMING
MOSTLY CLOUDY (80-90 PERCENT). CHANCE OF SHOWERS
AND THUNDERSTORMS LATE IN THE AFTERNOON.
CHANCE OF PCPN......30 PERCENT.
MAX TEMPERATURE.....AROUND 90.
MIN HUMIDITY........42-48 PERCENT.
DEWPOINT............60 INCREASING TO 64 LATE IN THE MORNING.
SURFACE WINDS (MPH).LIGHT WINDS BECOMING SOUTH 10 TO 15 MPH WITH
GUSTS TO AROUND 25 MPH.
WIND (20 FT)........SOUTHWEST WINDS UP TO 15 MPH SHIFTING TO THE
SOUTH 10 TO 15 MPH WITH GUSTS TO AROUND 25 MPH
LATER IN THE AFTERNOON. GUSTY AND ERRATIC WINDS
EXPECTED NEAR THUNDERSTORMS LATE IN THE
AFTERNOON.
MIXING HEIGHT.......5600 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 7 TO 15 MPH INCREASING TO 15 TO 21
MPH LATE IN THE MORNING.
SMOKE DISPERSAL.....POOR (2000 KNOT-FT) EARLY IN THE MORNING
INCREASING TO EXCELLENT (127100 KNOT-FT) IN THE
AFTERNOON.
ADI.................5 EARLY IN THE MORNING INCREASING TO 114 IN THE
AFTERNOON.
TIME (EDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........39 27 26 24 30 48 61 63 79 86 86 91
WEATHER COV..... SCH SCH CHC
WEATHER TYPE.... RW RW RW
TSTM COV........ SCH SCH CHC
CHC OF PCPN (%).0 0 0 0 0 0 0 10 10 20 20 30
TEMP............67 70 73 78 81 85 87 88 88 89 88 87
DEWPOINT........58 60 61 62 62 64 64 65 65 65 65 65
RH..............73 71 65 58 53 49 47 46 46 45 46 49
20 FT WIND DIR..SW SW SW SW SW SW SW SW SW S S S
20 FT WIND SPD..3 3 5 7 8 10 13 13 14 14 14 14
20 FT WIND GUST.8 8 9 13 16 18 22 23 25 26 26 25
SURFACE WND DIR.SW SW SW SW SW SW SW SW SW S S S
SURFACE WND SPD.3 3 5 7 8 10 13 13 14 14 14 14
SURFACE WND GST.8 8 9 13 16 18 22 23 25 26 26 25
MIX HGT (KFT)...0.4 0.4 0.6 1.6 2.9 4.1 5.2 5.5 5.6 3.1 2.1 2.8
TRANSP WIND DIR.SW SW SW S SW SW SW SW S SW SW S
TRANSP WIND SPD.7 8 10 13 15 17 18 20 21 17 15 17
ADI.............5 8 16 34 60 97 114 91 98 102 56 85
VRATE KT-FT/1K..3 4 11 23 43 71 91 108 127 118 46 83
VENTRATE CAT....PR PR PR PR FR GD GD VGD VGD VGD FR GD
FORECASTER...GORSE
REQUESTED BY...JAKE GLICK
TYPE OF REQUEST...OTHER
.TAG 2615449.0/PHI
.DELDT 06/13/26
.FORMATTERVERSION 2.0.0
.EMAIL JGLICK@PA.GOV
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