Suppression Forecast
Issued by NWS Sterling, VA

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FNUS71 KLWX 041249
FWSLWX

Spot Forecast for Worker Safety...NPS
National Weather Service Baltimore MD/Washington DC
849 AM EDT Tue May 4 2021

Forecast is based on forecast start time of 0900 EDT on May 04.
If conditions become unrepresentative...contact the National Weather
Service.

.DISCUSSION...

High pressure will remain over the Atlantic today while a cold front
approaches the Ohio Valley. More unseasonably warm conditions are
expected as a result, with a chance of a shower or thunderstorm,
however much of the day will be on the drier side. The cold front
will pass through Wednesday, bringing another chance for showers and
thunderstorms.

Canadian high pressure will build overhead Thursday, bringing much
cooler conditions. Low pressure may impact the area late this week.

.REST OF TODAY...

Sky/weather.........Partly sunny (50-60 percent). Scattered showers
                    late in the afternoon. Scattered thunderstorms
                    late in the afternoon. Numerous showers late in
                    the afternoon.
Max temperature.....Around 81.
Min humidity........56 percent.
Surface winds (mph).Southwest winds 9 to 13 mph. Gusts up to 28
                    mph.

TIME (EDT)      9 AM   11 AM  1 PM   3 PM   5 PM
SKY (%).........38     51     53     58     68
WEATHER COV.....                     SCTTRD NUMRUS
WEATHER TYPE....NONE   NONE   NONE   RNSHWR RNSHWR
TEMP............66     72     76     78     77
RH..............81     71     62     58     60
SURFACE WIND....W 10   W 10   SW 11  SW 13  SW 10
SURFACE WND GST.21     25     25     26     28

.TONIGHT...

Sky/weather.........Mostly cloudy (70-80 percent). Numerous showers
                    and scattered thunderstorms in the evening,
                    then chance of showers and slight chance of
                    thunderstorms overnight.
Min temperature.....Around 62.
Max humidity........90 percent.
Surface winds (mph).West winds 10 to 14 mph. Gusts up to 25 mph
                    early in the evening.

TIME (EDT)      6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
SKY (%).........72     82     79     76     73     73
WEATHER COV.....NUMRUS SCTTRD SCTTRD CHANCE CHANCE CHANCE
WEATHER TYPE....RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR
TEMP............75     70     68     67     66     65
RH..............64     73     78     81     84     84
SURFACE WIND....SW 10  S 10   SW 10  SW 10  SW 14  W 14
SURFACE WND GST.25     20     17     16     17     15

.WEDNESDAY...

Sky/weather.........Partly sunny (60-70 percent). Chance of showers
                    in the morning. Slight chance of thunderstorms
                    early in the morning. Slight chance of showers
                    early in the afternoon.
Max temperature.....Around 71.
Min humidity........58 percent.
Surface winds (mph).Northwest winds 10 to 18 mph. Gusts up to 35
                    mph.

TIME (EDT)      6 AM   8 AM   10 AM  NOON   2 PM   4 PM
SKY (%).........73     73     72     70     66     56
WEATHER COV.....CHANCE CHANCE CHANCE S CHC  S CHC
WEATHER TYPE....RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR NONE
TEMP............64     63     66     68     67     65
RH..............87     90     81     70     65     58
SURFACE WIND....W 11   W 10   W 13   W 15   NW 15  NW 16
SURFACE WND GST.17     21     23     24     28     32

$$
Forecaster...Witt
Requested by...Robert Pumphrey
Type of request...OTHER
.TAG 2111513.0/LWX
.DELDT 05/04/21
.FormatterVersion 1.0.26


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