295
FNUS71 KPHI 200827
FWSPHI

Spot Forecast for DOW HazMat Exercise...Upper Providence Twp OEM
National Weather Service Mount Holly NJ
427 AM EDT Sat Apr 20 2024

Forecast is based on forecast start time of 0800 EDT on April 20.
If conditions become unrepresentative, contact the National Weather
Service.

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

.DISCUSSION...
A cold front will swing through early this morning bringing low clouds
and scattered showers, followed by clearing skies and west-northwest
winds increasing this afternoon. Drier air and sunshine with the increase
in winds will promote deeper mixing heading through midday and the afternoon.
Gusts to 30 mph or so will be possible this afternoon. Clear skies, cool, and
calming winds tonight.


.REST OF TODAY...

Sky/weather.........Overcast skies early this morning with scattered
                    light showers until 9 or 10 AM, then quickly
                    clearing skies with sunshine the rest of the day.
Chance of pcpn......70 percent early AM, lowering to 10 percent after 10 AM.
Max temperature.....Around 65.
Min humidity........35 percent.
Surface winds (mph).West winds 5 to 10 mph early this morning increasing to 10 to 20
                    mph with gusts to around 30 mph in the afternoon.
Mixing height.......1200 feet mid-morning, rising to 7500 ft AGL this afternoon.

TIME (EDT)      8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........99  96  88  82  31  33  19  17  16  19
Weather cov.....SCT ISO
Weather type....RW  RW
Tstm cov........
Chc of pcpn (%).60  20  10  10  0   0   0   0   0   0
Temp............52  54  56  58  60  62  64  64  64  63
RH..............86  77  69  59  49  43  37  37  35  35
Surface wnd dir.W   W   NW  NW  NW  W   W   W   W   W
Surface wnd spd.5   7   8   9   12  14  15  16  17  17
Surface wnd gst.7   10  14  16  20  23  25  28  30  30
Mix hgt (kft)...0.7 1.0 1.2 2.0 3.8 4.8 5.8 6.8 7.5 7.4

.TONIGHT...

Sky/weather.........Mostly clear (10-20 percent).
Chance of pcpn......0 percent.
Min temperature.....Around 38.
Max humidity........62 percent.
Surface winds (mph).Northwest winds 10 to 15 mph early in the evening
                    becoming light overnight.
Mixing height.......4500 ft early evening, lowering to 400 ft AGL.

TIME (EDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........7   8   3   2   1   6   7   20  12  21  22  29
Weather cov.....
Weather type....
Tstm cov........
Chc of pcpn (%).0   0   0   0   0   0   0   0   0   0   0   0
Temp............60  57  56  53  50  47  45  44  42  40  39  38
RH..............37  42  40  43  46  49  51  51  55  59  59  62
Surface wnd dir.NW  NW  NW  NW  NW  NW  NW  NW  NW  NW  NW  W
Surface wnd spd.17  14  12  10  9   7   7   7   6   5   3   3
Surface wnd gst.26  21  17  16  12  9   9   9   8   6   5   5
Mix hgt (kft)...4.7 0.6 0.6 0.6 0.5 0.5 0.5 0.4 0.4 0.4 0.4 0.4

$$
Forecaster...Dodd
Requested by...Dan Schaefer
Type of request...HAZMAT
.TAG 2411398.0/PHI
.DELDT 04/20/24
.FormatterVersion 2.0.0
.EMAIL dschaefer@uprov-montco.org