Suppression Forecast
Issued by NWS Sterling, VA

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FNUS71 KLWX 251550
FWSLWX

Spot Forecast for KEAQ - Water Main Break...National Park Service
National Weather Service Baltimore MD/Washington DC
1150 AM EDT Fri Jul 25 2025

Forecast is based on forecast start time of 1200 EDT on July 25.
If conditions become unrepresentative...contact the National Weather
Service.

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

...HEAT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING...

.DISCUSSION...

Best chance of thunderstorms today Fri will be between 3 PM and
8 PM. Multiple rounds of thunderstorms are possible.
Better chances of afternoon thunderstorms are expected Saturday
and Sunday, particularly Sunday.

Summertime heat and humidity return into next week as high
pressure pushes east into the Atlantic. A weak front will sag
south into the area Saturday, bringing renewed chances for showers
and thunderstorms. A slight reprieve to temperatures along with
increased thunderstorm chances are forecast over the weekend as
the front stalls nearby. A stronger cold front will cross the area
mid to late next week, but not before another surge of heat
occurs.

.SATURDAY...

Sky/weather.........Mostly sunny (30-40 percent). Slight chance of
                    showers and thunderstorms late in the
                    afternoon.
Chance of pcpn......20 percent.
Chance of thunder...24 percent.
Max temperature.....Around 94.
Min humidity........56 percent.
Surface winds (mph).Light winds becoming east around 5 mph late in
                    the afternoon.

TIME (EDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........29  19  29  23  27  27  34  44  48  43  53  54
Weather cov.....                                    SCH SCH SCH
Weather type....                                    RW  RW  RW
Tstm cov........                                    SCH SCH SCH
Chc of pcpn (%).0   0   0   0   0   10  10  10  10  20  20  20
Chc of thdr (%).0   0   0   0   0   10  10  10  10  20  20  20
Temp............78  79  81  84  85  88  90  91  92  93  93  92
RH..............88  85  82  74  72  66  62  58  58  58  56  60
Surface wnd dir.N   N   N   NE  NE  NE  NE  NE  E   E   E   E
Surface wnd spd.2   2   2   2   3   3   3   3   3   5   5   5
Surface wnd gst.6   6   6   6   7   7   7   7   7   7   8   8

$$
Forecaster...Rosa
Requested by...Ruhi Ellis
Type of request...OTHER
.TAG 2518574.0/LWX
.DELDT 07/25/25
.FormatterVersion 2.0.0
.EMAIL ruhi_ellis@nps.gov