Suppression Forecast
Issued by NWS Sterling, VA

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FNUS71 KLWX 161306
FWSLWX

Spot Forecast for S-130 Field Day Exercise...NPS
National Weather Service Baltimore MD/Washington DC
906 AM EDT Wed Aug 16 2017

Forecast is based on incident time of 1300 EDT on August 17.
If conditions become unrepresentative...contact the National Weather
Service.

.DISCUSSION...

High pressure will build overhead through tonight. A warm front
will pass through the area Thursday. More humid conditions behind
the boundary will cause popup showers and thunderstorms to
develop.

A cold front will approach the area Friday before passing through
Friday night into early Saturday. More showers and thunderstorms
are possible ahead of the boundary...especially Friday afternoon
and evening. High pressure will return for the rest of the
weekend.

.THURSDAY...

Sky/weather.........Mostly cloudy (80-90 percent). A chance of
                    showers in the morning, then showers likely and
                    a chance of thunderstorms in the afternoon.
Max temperature.....Around 80.
Min humidity........72 percent.
Surface winds.......South winds 6 to 8 mph.

TIME (EDT)      1 PM   3 PM   5 PM
SKY (%).........79     81     88
WEATHER COV.....CHANCE LIKELY LIKELY
WEATHER TYPE....RNSHWR RNSHWR RNSHWR
TEMP............78     79     79
RH..............74     72     74
SURFACE WIND....S 6    S 6    S 8
SURFACE WND GST.10     15     15

.THURSDAY NIGHT...

Sky/weather.........Mostly cloudy (75-85 percent). Showers likely
                    with a chance of thunderstorms in the evening. A
                    chance of showers after midnight.
Min temperature.....Around 68.
Max humidity........93 percent.
Surface winds.......Southwest winds 8 to 10 mph.

TIME (EDT)      6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
SKY (%).........86     78     81     79     70     76
WEATHER COV.....LIKELY CHANCE CHANCE CHANCE CHANCE CHANCE
WEATHER TYPE....RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR
TEMP............78     75     73     71     71     70
RH..............76     82     84     90     90     90
SURFACE WIND....S 8    S 8    S 10   SW 9   SW 8   SW 9
SURFACE WND GST.15     15     15     15     15     15

.FRIDAY...

Sky/weather.........Mostly cloudy (70-80 percent). A chance
                    of showers through the day. A chance of
                    thunderstorms in the afternoon. Best
                    chance is mid-late afternoon.
Max temperature.....Around 83.
Min humidity........69 percent.
Surface winds.......Southwest winds 6 to 10 mph.

TIME (EDT)      6 AM   8 AM   10 AM  NOON   2 PM   4 PM
SKY (%).........78     79     73     74     81     77
WEATHER COV.....CHANCE CHANCE CHANCE CHANCE CHANCE CHANCE
WEATHER TYPE....RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR
TEMP............70     72     76     80     82     82
RH..............90     87     82     77     72     69
SURFACE WIND....SW 8   SW 6   SW 7   SW 7   SW 6   SW 9
SURFACE WND GST.15     10     15     15     15     15

$$
Forecaster...Martin
Requested by...Andrew Ruth
Type of request...OTHER
.TAG 1714457.0/LWX



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