423  
FNUS71 KPHI 221906  
FWSPHI  
 
SPOT FORECAST FOR MIDDLEFORD RX...THE NATURE CONSERVANCY  
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ  
306 PM EDT WED OCT 22 2025  
 
FORECAST IS BASED ON IGNITION TIME OF 0800 EDT ON OCTOBER 23.  
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 DOMINATES TONIGHT BEFORE ANOTHER COLD FRONT  
MOVES THROUGH ON THURSDAY. HIGH PRESSURE SETTLES IN FOR THE  
WEEKEND AND REMAINS IN CONTROL INTO NEXT WEEK.  
   
THURSDAY
 
 
SKY/WEATHER.........SUNNY (10-20 PERCENT).  
CWR.................0 PERCENT.  
CHANCE OF PCPN......0 PERCENT.  
MAX TEMPERATURE.....AROUND 63.  
MIN HUMIDITY........35 PERCENT.  
WIND SHIFT..........  
WIND (20 FT)........WEST WINDS 5 TO 14 MPH. GUSTS UP TO 28 MPH IN  
THE LATE MORNING AND AFTERNOON.  
MIXING HEIGHT.......6500 FT AGL.  
TRANSPORT WINDS.....WEST 10 TO 13 MPH INCREASING TO 20 TO 22 MPH IN  
THE LATE MORNING AND AFTERNOON.  
SMOKE DISPERSAL.....POOR (3500 KNOT-FT) EARLY IN THE MORNING  
INCREASING TO EXCELLENT (100200 KNOT-FT) IN THE  
AFTERNOON INCREASING TO EXCELLENT (95000  
KNOT-FT) IN THE AFTERNOON.  
ADI.................11 EARLY IN THE MORNING INCREASING TO 85 IN THE  
AFTERNOON.  
 
TIME (EDT) 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY (%).........21 16 2 2 5 7 16 20 29 30  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........  
CWR.............0 0 0 0 0 0 0 0 0 0  
CHC OF PCPN (%).0 0 0 0 0 0 0 0 0 0  
TEMP............44 49 55 58 60 61 61 61 63 61  
RH..............86 71 57 49 42 39 38 39 35 38  
20 FT WIND DIR..SW W W W W W W W W W  
20 FT WIND SPD..5 7 10 14 14 14 15 15 14 13  
20 FT WIND GUST.10 14 20 25 28 28 26 28 25 24  
MIX HGT (KFT)...0.4 1.0 4.0 5.1 5.6 5.9 6.1 6.5 6.1 5.6  
TRANSP WIND DIR.W W W W W W W W W W  
TRANSP WIND SPD.10 13 21 21 21 22 22 22 22 20  
ADI.............11 16 77 64 66 72 73 74 73 85  
VRATE KT-FT/1K..4 11 72 91 100 112 117 124 117 95  
VENTRATE CAT....PR PR GD GD VGD VGD VGD VGD VGD GD  
   
THURSDAY NIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR (15-25 PERCENT).  
CWR.................0 PERCENT.  
CHANCE OF PCPN......0 PERCENT.  
MIN TEMPERATURE.....AROUND 38.  
MAX HUMIDITY........96 PERCENT.  
WIND SHIFT..........  
WIND (20 FT)........WEST WINDS 6 TO 9 MPH EARLY IN THE EVENING  
BECOMING LIGHT.  
MIXING HEIGHT.......400 FT AGL.  
TRANSPORT WINDS.....WEST 8 TO 14 MPH.  
SMOKE DISPERSAL.....FAIR (17300 KNOT-FT) EARLY IN THE EVENING  
DECREASING TO POOR (2800 KNOT-FT) LATE IN THE  
NIGHT.  
ADI.................4 TO 26.  
 
TIME (EDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM  
SKY (%).........27 33 17 6 4 2 2 2 2 3 3 4  
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............59 57 51 49 48 47 46 45 44 43 42 41  
RH..............40 45 59 63 65 68 71 76 79 82 82 85  
20 FT WIND DIR..W W W NW NW W W W W W W W  
20 FT WIND SPD..10 8 3 2 2 2 2 2 2 2 2 2  
20 FT WIND GUST.20 14 7 6 6 6 6 6 6 6 6 7  
MIX HGT (KFT)...1.4 0.6 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 NW NW NW W W W W W W  
TRANSP WIND SPD.14 12 12 10 10 10 10 10 10 9 9 8  
ADI.............26 8 5 5 5 5 5 5 5 4 4 4  
VRATE KT-FT/1K..17 6 4 4 4 4 4 4 4 3 3 3  
VENTRATE CAT....PR PR PR PR PR PR PR PR PR PR PR PR  
   
FRIDAY
 
 
SKY/WEATHER.........SUNNY (0-10 PERCENT).  
CWR.................0 PERCENT.  
CHANCE OF PCPN......0 PERCENT.  
MAX TEMPERATURE.....AROUND 61.  
MIN HUMIDITY........42 PERCENT.  
WIND SHIFT..........  
WIND (20 FT)........LIGHT WINDS BECOMING WEST 5 TO 8 MPH IN THE  
LATE MORNING AND AFTERNOON.  
MIXING HEIGHT.......6100 FT AGL.  
TRANSPORT WINDS.....WEST 8 TO 16 MPH.  
SMOKE DISPERSAL.....POOR (2400 KNOT-FT) EARLY IN THE MORNING  
INCREASING TO EXCELLENT (79200 KNOT-FT) IN THE  
AFTERNOON.  
ADI.................4 EARLY IN THE MORNING INCREASING TO 99 IN THE  
AFTERNOON.  
 
TIME (EDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY (%).........3 2 1 2 2 3 6 8 11 10 10 9  
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............40 39 40 45 51 56 59 60 60 61 61 59  
RH..............89 96 96 82 68 57 51 47 46 42 42 45  
20 FT WIND DIR..W W W W W W W W W W NW NW  
20 FT WIND SPD..2 3 3 5 6 7 8 9 9 9 9 8  
20 FT WIND GUST.7 7 8 9 12 14 15 16 17 17 16 15  
MIX HGT (KFT)...0.4 0.4 0.3 1.8 3.3 4.8 5.2 5.6 6.1 5.9 5.6 5.4  
TRANSP WIND DIR.W W W W W W W W W NW NW NW  
TRANSP WIND SPD.8 8 8 10 13 15 15 15 15 15 16 16  
ADI.............4 8 8 24 51 83 89 65 67 68 68 99  
VRATE KT-FT/1K..3 3 2 16 36 62 68 73 79 78 77 75  
VENTRATE CAT....PR PR PR PR PR GD GD GD GD GD GD GD  
 

 
FORECASTER...RCM  
REQUESTED BY...NATASHA WHETZEL - BURN BOSS  
TYPE OF REQUEST...PRESCRIBED  
.TAG 2524240.0/PHI  
.DELDT 10/22/25  
.FORMATTERVERSION 2.0.0  
.EMAIL NATASHA.WHETZEL@TNC.ORG  
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.

The Nexlab PA Page
The Nexlab NJ Page
The Nexlab DE Page
The Nexlab MD Page Main Text Page