648
FNUS71 KPHI 090933
FWSPHI
SPOT FORECAST FOR MILLERTOWN RD RX...DCNR
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
533 AM EDT WED MAY 9 2018
FORECAST IS BASED ON IGNITION TIME OF 0700 EDT ON MAY 09.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
PLEASE CONTACT OUR OFFICE IF YOU HAVE QUESTIONS OR CONCERNS WITH THIS FORECAST.
DISCUSSION
VERY DRY CONDITIONS ARE FORECAST TODAY, THOUGH WINDS SHOULD BE
LIGHT. WINDS AND THE CHANCE FOR RAIN ARE FORECAST TO INCREASE
BEGINNING THURSDAY MORNING.
A WEAK RIDGE OF HIGH PRESSURE WILL REMAIN ACROSS THE MID-ATLANTIC
TODAY AS A SURFACE LOW OFFSHORE MOVES INTO THE CANADIAN MARITIMES BY
THURSDAY. A COLD FRONT WILL MOVE THROUGH THE REGION LATE THIS WEEK
BEFORE STALLING TO OUR SOUTH. THE FRONT IS THEN EXPECTED TO RETURN
NORTHWARD AS A WARM FRONT FRIDAY NIGHT AND SATURDAY AND THEN BACK
SOUTHWARD AS A COLD FRONT SUNDAY AND MONDAY.
REST OF TODAY
SKY/WEATHER.........MOSTLY SUNNY (30-40 PERCENT).
CWR.................10 PERCENT.
CHANCE OF PCPN......10 PERCENT.
LAL.................NO TSTMS.
MAX TEMPERATURE.....AROUND 76.
MIN HUMIDITY........37 PERCENT.
WIND SHIFT..........MAY START LIGHT AND VARIABLE BUT SETTLE OUT OF
THE SOUTH BY MID DAY.
WIND (20 FT)........LIGHT WINDS BECOMING SOUTH 5 TO 6 MPH IN THE
AFTERNOON.
MIXING HEIGHT.......300-1000 FT AGL INCREASING TO 7100-7400 FT AGL
LATE IN THE MORNING.
TRANSPORT WINDS.....NORTHWEST AROUND 1 MPH SHIFTING TO THE SOUTH 2
TO 8 MPH LATE IN THE MORNING.
TIME (EDT) 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........32 35 35 36 37 38 39 40 37 35 32
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 10 10 10 10
CHC OF PCPN (%).0 0 0 0 0 0 0 10 10 10 10
LAL.............1 1 1 1 1 1 1 1 1 1 1
TEMP............46 52 57 63 67 69 72 73 74 74 74
RH..............93 76 62 51 44 42 38 37 37 38 40
20 FT WIND DIR..NW NW N E SE SE SE S S S S
20 FT WIND SPD..1 2 2 2 3 5 5 6 6 6 6
20 FT WIND GUST. 4 6 6
MIX HGT (KFT)...0.3 1.0 1.0 1.0 7.3 7.3 7.3 7.4 7.4 7.4 7.1
TRANSP WIND DIR.W NW NW NW E E E S S S S
TRANSP WIND SPD.1 1 1 1 2 2 2 5 5 5 8
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (25-35 PERCENT).
CWR.................10 PERCENT.
CHANCE OF PCPN......10 PERCENT.
LAL.................NO TSTMS.
MIN TEMPERATURE.....AROUND 48.
MAX HUMIDITY........74 PERCENT.
WIND SHIFT..........NONE EXPECTED.
WIND (20 FT)........SOUTH WINDS 5 TO 6 MPH IN THE EVENING BECOMING
LIGHT.
MIXING HEIGHT.......7100 FT AGL DECREASING TO 300-400 FT AGL EARLY
IN THE EVENING.
TRANSPORT WINDS.....SOUTH 2 TO 8 MPH.
TIME (EDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........30 27 25 24 24 24 23 23 22 28 34 40
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............10 10 0 0 0 0 0 0 0 0 0 10
CHC OF PCPN (%).10 10 0 0 0 0 0 0 0 0 0 10
LAL.............1 1 1 1 1 1 1 1 1 1 1 1
TEMP............72 69 66 63 61 59 57 56 54 53 52 51
RH..............42 45 50 52 51 57 57 59 64 66 71 74
20 FT WIND DIR..S S S S S S S S S S S S
20 FT WIND SPD..6 6 6 6 5 5 3 3 3 3 2 3
20 FT WIND GUST. 6 6 4 4 4 4 4
MIX HGT (KFT)...7.1 7.1 0.4 0.4 0.4 0.3 0.3 0.3 0.3 0.3 0.3 0.3
TRANSP WIND DIR.S S S S S SW SW SW S S S S
TRANSP WIND SPD.8 8 6 6 6 3 3 3 2 2 2 2
THURSDAY
SKY/WEATHER.........PARTLY SUNNY (60-70 PERCENT). CHANCE OF RAIN
SHOWERS THROUGH THE DAY. CHANCE OF
THUNDERSTORMS IN THE AFTERNOON.
CWR.................20 PERCENT INCREASING TO 50 PERCENT.
CHANCE OF PCPN......50 PERCENT.
LAL.................NO TSTMS UNTIL 1400, THEN 9-15 STRIKES.
MAX TEMPERATURE.....AROUND 72.
MIN HUMIDITY........55 PERCENT.
WIND SHIFT..........SHIFTING FROM SOUTHERLY TO SOUTHWESTERLY IN THE
AFTERNOON
WIND (20 FT)........LIGHT WINDS BECOMING SOUTHWEST 5 TO 9 MPH WITH
GUSTS TO AROUND 17 MPH. GUSTY AND ERRATIC WINDS
EXPECTED NEAR THUNDERSTORMS EARLY IN THE
AFTERNOON.
MIXING HEIGHT.......300-900 FT AGL INCREASING TO 1800-3200 FT AGL
LATE IN THE MORNING.
TRANSPORT WINDS.....SOUTH 2 TO 10 MPH INCREASING TO SOUTHWEST 21 TO
23 MPH LATE IN THE MORNING.
TIME (EDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........45 51 57 63 69 74 78 82 86 85 84 84
WEATHER COV.....SCH CHC CHC CHC CHC CHC CHC CHC CHC CHC CHC CHC
WEATHER TYPE....RW RW RW RW RW RW RW RW RW RW RW RW
TSTM COV........ SCH SCH SCH CHC
CWR.............20 30 30 30 30 30 30 30 50 50 50 50
CHC OF PCPN (%).20 30 30 30 30 30 30 30 50 50 50 50
LAL.............1 1 1 1 1 1 1 1 3 3 3 3
TEMP............51 52 55 59 62 65 67 69 70 71 71 71
RH..............74 77 74 67 62 58 56 55 55 55 57 59
20 FT WIND DIR..S S S S S S S S SW SW SW SW
20 FT WIND SPD..3 6 5 6 7 8 9 9 9 9 9 9
20 FT WIND GUST.4 8 11 14 16 17 17 17 16 16 14
MIX HGT (KFT)...0.3 0.3 0.9 0.9 0.9 3.0 3.0 3.0 3.2 3.2 3.2 1.8
TRANSP WIND DIR.S S S S S S S S SW SW SW W
TRANSP WIND SPD.2 2 10 10 10 23 23 23 22 22 22 21
FORECASTER...JOHNSON
REQUESTED BY...TODD BREININGER
TYPE OF REQUEST...PRESCRIBED
.TAG 1809391.2/PHI
.DELDT 05/09/18
.EMAIL SHTURNER@PA.GOV
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