148  
FNUS71 KPHI 222306  
FWSPHI  
 
SPOT FORECAST FOR BREACHERS BRANCH...NEW JERSEY FOREST FIRE SERVICE  
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ  
706 PM EDT SUN APR 22 2018  
 
FORECAST IS BASED ON REQUEST TIME OF 2000 EDT ON APRIL 22.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
 
PLEASE CONTACT OUR OFFICE IF YOU HAVE QUESTIONS OR CONCERNS WITH THIS  
FORECAST.  
   
DISCUSSION
 
 
DRY CONDITIONS CONTINUE THROUGH MONDAY, THEN RAIN MOVES THROUGH LATE  
TUESDAY THROUGH WEDNESDAY.  
 
RELATIVE HUMIDITY VALUES DIPPED DOWN TO 20 PERCENT THIS AFTERNOON,  
ESPECIALLY FOR PORTIONS OF EASTERN PENNSYLVANIA AND NORTHERN NEW  
JERSEY, AND WILL INCREASE THROUGH THIS EVENING AS COOLING OCCURS. THESE  
VALUES WILL LOWER ONCE AGAIN TO ABOUT 25 PERCENT MONDAY AFTERNOON,  
ESPECIALLY FOR NORTHERN NEW JERSEY AND PARTS OF EASTERN PENNSYLVANIA.  
VARIABLE WINDS UP TO ABOUT 15 MPH THIS AFTERNOON WILL QUICKLY DIMINISH  
THROUGH THIS EVENING, THEN BECOME SOUTHEASTERLY AROUND 10 MPH DURING  
MONDAY.  
 
HIGH PRESSURE OVER THE NORTHEASTERN UNITED STATES WILL CONTINUE  
TO SLOWLY BUILD EAST, MOVING OFFSHORE INTO MONDAY. MEANWHILE, A  
LOW IN THE DEEP SOUTH WILL SLOWLY LIFT INTO THE MID-ATLANTIC  
STATES BY MID WEEK. ANOTHER LOW PRESSURE SYSTEM AND ITS ASSOCIATED  
COLD FRONT COULD AFFECT OUR REGION LATE IN THE WEEK.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR (0-10 PERCENT). PATCHY FROST LATE  
IN THE NIGHT.  
CWR.................0 PERCENT.  
CHANCE OF PCPN......0 PERCENT.  
LAL.................NO TSTMS.  
MIN TEMPERATURE.....AROUND 36.  
MAX HUMIDITY........85 PERCENT.  
WIND SHIFT..........  
WIND (20 FT)........SOUTH WINDS 5 TO 7 MPH EARLY IN THE EVENING  
BECOMING LIGHT.  
MIXING HEIGHT.......7800 FT AGL DECREASING TO 200-500 FT AGL EARLY  
IN THE EVENING.  
 
TIME (EDT) 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM  
SKY (%).........6 5 3 2 2 2 2 2 1 1  
WEATHER COV..... PTY PTY  
WEATHER TYPE.... FST FST  
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  
LAL.............1 1 1 1 1 1 1 1 1 1  
TEMP............53 49 46 43 41 40 38 37 37 36  
RH..............41 50 55 65 70 73 79 82 82 85  
20 FT WIND DIR..S S S SW SW SW SW W W W  
20 FT WIND SPD..6 5 3 1 0 0 0 0 0 0  
20 FT WIND GUST.7 6 4  
MIX HGT (KFT)...0.5 0.5 0.5 0.3 0.3 0.3 0.2 0.2 0.2 0.2  
   
MONDAY
 
 
SKY/WEATHER.........SUNNY (0-10 PERCENT). PATCHY FROST EARLY IN THE  
MORNING.  
CWR.................0 PERCENT.  
CHANCE OF PCPN......0 PERCENT.  
LAL.................NO TSTMS.  
MAX TEMPERATURE.....AROUND 66.  
MIN HUMIDITY........32 PERCENT.  
WIND SHIFT..........  
WIND (20 FT)........LIGHT WINDS BECOMING SOUTHEAST 5 TO 9 MPH IN  
THE AFTERNOON.  
MIXING HEIGHT.......200-1000 FT AGL INCREASING TO 6700-6900 FT AGL  
LATE IN THE MORNING, THEN DECREASING TO 4200 FT  
AGL LATE IN THE AFTERNOON.  
 
TIME (EDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY (%).........1 2 2 3 3 4 6 7 9 8 6 5  
WEATHER COV.....PTY PTY  
WEATHER TYPE....FST FST  
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  
LAL.............1 1 1 1 1 1 1 1 1 1 1 1  
TEMP............40 43 47 52 56 61 62 64 65 64 64 63  
RH..............76 70 63 52 47 39 38 34 33 32 32 32  
20 FT WIND DIR..W W W SW S S S SE SE SE SE SE  
20 FT WIND SPD..0 1 1 1 2 3 5 6 7 8 9 9  
20 FT WIND GUST. 4 6 7 10 11 13 13  
MIX HGT (KFT)...0.2 0.2 1.0 1.0 1.0 6.9 6.9 6.9 6.7 6.7 6.7 4.2  
   
MONDAY NIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR (20-30 PERCENT).  
CWR.................0 PERCENT.  
CHANCE OF PCPN......0 PERCENT.  
LAL.................NO TSTMS.  
MIN TEMPERATURE.....AROUND 41.  
MAX HUMIDITY........76 PERCENT.  
WIND SHIFT..........  
WIND (20 FT)........SOUTHEAST WINDS 5 TO 8 MPH IN THE EVENING  
BECOMING LIGHT, THEN BECOMING SOUTHEAST AROUND  
5 MPH EARLY IN THE MORNING.  
MIXING HEIGHT.......4200 FT AGL DECREASING TO 200-500 FT AGL EARLY  
IN THE EVENING.  
 
TIME (EDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM  
SKY (%).........6 8 9 14 18 23 25 27 29 34 39 44  
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  
LAL.............1 1 1 1 1 1 1 1 1 1 1 1  
TEMP............60 57 54 52 50 48 48 47 46 45 44 43  
RH..............36 40 45 48 54 58 58 63 65 68 73 76  
20 FT WIND DIR..SE SE SE SE SE SE SE SE SE SE SE SE  
20 FT WIND SPD..8 7 6 6 5 3 3 3 3 3 3 5  
20 FT WIND GUST.11 10 6 5 4 4 4 4 4  
MIX HGT (KFT)...4.2 4.2 0.5 0.5 0.5 0.3 0.3 0.3 0.2 0.2 0.2 0.2  
   
TUESDAY
 
 
SKY/WEATHER.........PARTLY SUNNY (65-75 PERCENT) THEN BECOMING  
CLOUDY (85-95 PERCENT). CHANCE OF RAIN EARLY IN  
THE AFTERNOON.  
CWR.................10 PERCENT INCREASING TO 30 PERCENT EARLY IN  
THE AFTERNOON.  
CHANCE OF PCPN......30 PERCENT.  
LAL.................NO TSTMS.  
MAX TEMPERATURE.....AROUND 62.  
MIN HUMIDITY........52 PERCENT.  
WIND SHIFT..........  
WIND (20 FT)........SOUTHEAST WINDS 5 TO 12 MPH.  
MIXING HEIGHT.......200-700 FT AGL INCREASING TO 3700-3900 FT AGL  
LATE IN THE MORNING, THEN DECREASING TO 1700 FT  
AGL LATE IN THE AFTERNOON.  
 
TIME (EDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY (%).........49 54 58 63 68 72 77 82 87 88 90 92  
WEATHER COV..... CHC CHC CHC CHC  
WEATHER TYPE.... RN RN RN RN  
TSTM COV........  
CWR.............0 0 10 10 10 10 10 10 30 30 30 30  
CHC OF PCPN (%).0 0 10 10 10 10 10 10 30 30 30 30  
LAL.............1 1 1 1 1 1 1 1 1 1 1 1  
TEMP............42 42 47 50 53 57 58 60 62 62 62 62  
RH..............86 89 79 71 66 57 57 53 52 52 52 52  
20 FT WIND DIR..SE SE E SE SE SE SE SE SE SE SE SE  
20 FT WIND SPD..5 6 6 7 8 9 10 12 12 12 10 9  
20 FT WIND GUST.6 7 8 10 12 13 14 14 14 13 12  
MIX HGT (KFT)...0.2 0.2 0.7 0.7 0.7 3.9 3.9 3.9 3.7 3.7 3.7 1.7  
 

 
FORECASTER...FRANCK  
REQUESTED BY...JOHN. RIETH  
TYPE OF REQUEST...WILDFIRE  
.TAG 1807373.0/PHI  
.EMAIL JOHN.RIETH@DEP.NJ.GOV  
 
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