Suppression Forecast
Issued by NWS Mt. Holly, NJ

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Spot Forecast for TEST Exercise TEST...National Weather Service
National Weather Service Mount Holly NJ
722 PM EDT Mon May 21 2018

Forecast is based on forecast start time of 2000 EDT on May 21.
If conditions become unrepresentative...contact the National Weather
Service.

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

.DISCUSSION...
A sea breeze has shifted winds at the event site to
southeasterly. Winds may be variable between southerly and
southeasterly late tonight, but wind speeds should remain around 5
to 10 mph.

A weak area of low pressure will move eastward across the Saint
Lawrence Valley Tuesday through Wednesday with some showers and
a few thunderstorms for our area, then a weak cold front moves
through our region late Tuesday into early Wednesday. High
pressure builds in behind this exiting system through the end of
the week. Uncertainty then becomes rather high for the next
potential system to affect our area by Memorial Day weekend,
however it does appear that another frontal system will impact the
region bringing unsettled weather.

.REST OF TONIGHT...

Sky/weather.........Partly cloudy (30-40 percent) then becoming
                    mostly cloudy (65-75 percent).
Chance of pcpn......10 percent.
Min temperature.....Around 59.
Max humidity........87 percent.
Dewpoint............55.
Surface winds.......Southeast winds 5 to 9 mph early in the evening
                    becoming light.
Mixing height.......300-500 ft AGL.

TIME (EDT)      8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........22  30  39  47  55  63  71  74  78  81
Weather cov.....
Weather type....
Tstm cov........
Chc of pcpn (%).0   0   0   0   0   0   10  10  10  10
Temp............67  64  64  63  62  62  61  59  59  59
Dewpoint........56  55  55  55  55  55  55  54  55  55
RH..............68  73  73  75  78  78  81  83  87  87
Surface wnd dir.S   SE  SE  SE  SE  SE  SE  SE  SE  SE
Surface wnd spd.10  9   8   8   6   6   5   4   4   4
Surface wnd gst.14  13  10  9   8   8   6   5   5   5
Mix hgt (kft)...0.5 0.5 0.5 0.3 0.3 0.3 0.3 0.3 0.3 0.3

.TUESDAY...

Sky/weather.........Cloudy (85-95 percent). Chance of rain showers
                    in the morning, then rain showers likely and
                    chance of thunderstorms in the afternoon.
Chance of pcpn......60 percent.
Max temperature.....Around 72.
Min humidity........78 percent.
Dewpoint............58 increasing to 62 early in the afternoon.
Surface winds.......Light winds becoming south 5 to 8 mph.
Mixing height.......300-900 ft AGL increasing to 1800-3100 ft AGL
                    late in the morning.

TIME (EDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........84  86  89  92  94  97  96  95  94  92  90  88
Weather cov.....    SCH SCH CHC CHC CHC CHC CHC CHC CHC CHC LKY
Weather type....    RW  RW  RW  RW  RW  RW  RW  RW  RW  RW  RW
Tstm cov........                                CHC CHC CHC CHC
Chc of pcpn (%).10  20  20  30  30  30  30  30  30  40  50  60
Temp............59  61  62  63  64  66  66  66  67  67  68  69
Dewpoint........56  57  58  58  59  59  60  60  61  62  63  64
RH..............90  87  87  84  84  78  81  81  81  84  84  84
Surface wnd dir.SE  SE  SE  SE  SE  SE  SE  SE  S   S   S   S
Surface wnd spd.4   5   6   8   8   9   9   9   9   8   8   8
Surface wnd gst.5   6   8   9   10  13  13  13  13  10  10  9
Mix hgt (kft)...0.3 0.3 0.9 0.9 0.9 2.9 2.9 2.9 3.1 3.1 3.1 1.8

.TUESDAY NIGHT...

Sky/weather.........Mostly cloudy (70-80 percent). Showers likely
                    in the evening. Chance of thunderstorms through
                    the night. Chance of showers after midnight.
Chance of pcpn......60 percent.
Min temperature.....Around 65.
Max humidity........94 percent.
Dewpoint............64.
Surface winds.......Southwest winds 6 to 7 mph.
Mixing height.......300-1800 ft AGL.

TIME (EDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........90  93  95  92  89  86  77  67  57  59  60  61
Weather cov.....LKY LKY LKY LKY LKY CHC CHC CHC CHC CHC CHC SCH
Weather type....RW  RW  RW  RW  RW  RW  RW  RW  RW  RW  RW  RW
Tstm cov........CHC CHC CHC CHC CHC CHC CHC CHC SCH SCH SCH SCH
Chc of pcpn (%).60  60  60  60  60  40  40  40  30  30  30  20
Temp............69  69  69  69  68  68  68  67  67  67  66  67
Dewpoint........64  63  63  64  64  65  65  65  65  64  64  64
RH..............84  81  81  84  87  90  90  93  93  93  94  92
Surface wnd dir.S   S   S   S   SW  SW  SW  SW  SW  SW  SW  W
Surface wnd spd.8   8   8   8   8   8   8   8   8   8   8   8
Surface wnd gst.9   9   9   9   9   10  10  10  10  10  12  12
Mix hgt (kft)...1.8 1.8 0.4 0.4 0.4 0.3 0.3 0.3 0.3 0.3 0.3 0.3

$$
Forecaster...Johnson
Requested by...Sarah Johnson
Type of request...OTHER
.TAG 1810437.0/PHI
.DELDT 05/21/18
.EMAIL sarah.johnson@noaa.gov


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