Spot Forecast
Issued by NWS Sterling, VA

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FNUS71 KLWX 200852
FWSLWX

Spot Forecast for Mills RX...USFS
National Weather Service Baltimore MD/Washington DC
452 AM EDT Sat Apr 20 2024

Forecast is based on ignition time of 0500 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 push through the area this morning, clearing
clouds to the east. Gusty west-northwest winds will develop this
afternoonin its wake. A few gusts could exceed 25 mph. Drier air
will also arrive, and minimum RH will fall to around 25 percent.

Cooler air will settle in tonight. Clouds will increase as low
pressure moves off the Carolina coast Sunday, but rain will largely
stay south of the forecast area.


.TODAY...

Sky/weather.........Mostly cloudy (70-80 percent) then becoming
                    sunny (10-20 percent). Patchy fog early in the
                    morning.
CWR.................10 percent.
Max temperature.....Around 67.
Min humidity........26 percent.
Eye level winds.....Northwest winds up to 8 mph. Gusts up to 24 mph
                    late in the afternoon.
Wind (20 ft)........Northwest winds 5 to 13 mph. Gusts up to 24 mph
                    late in the afternoon.
Transport winds.....Northwest 7 to 15 mph shifting to the west 17
                    to 21 mph late in the afternoon.
Smoke dispersal.....Poor (3900 knot-ft) early in the morning
                    increasing to excellent (109300
                    knot-ft) in the afternoon.
Haines Index........3 to 6 or very low to high potential for large
                    plume dominated fire growth.

TIME (EDT)      6 AM   8 AM   10 AM  NOON   2 PM   4 PM
Sky (%).........89     86     65     69     24     8
Weather cov.....
Weather type....NONE   NONE   NONE   NONE   NONE   NONE
Tstm cov........
CWR.............10     10     0      0      0      0
Temp............55     55     58     62     65     66
RH..............93     90     59     39     29     26
20 ft wind......NW 5   NW 6   NW 9   W 10   W 13   W 13
20 ft wind gust.9      12     14     17     23     23
Eye level wind..NW 3   NW 4   NW 5   W 6    W 8    W 8
Eye lvl wnd gst.5      7      8      10     14     14
Transport wind..NW 7   N 15   NW 14  W 14   W 15   W 20
Haines index....3      3      3      4      5      6
Vrate kt-ft/1K..4      27     36     50     71     109
Ventrate Cat....POOR   POOR   POOR   FAIR   GOOD   VYGD

.TONIGHT...

Sky/weather.........Partly cloudy (30-40 percent) then becoming
                    mostly cloudy (50-60 percent).
CWR.................0 percent.
Min temperature.....Around 40.
Max humidity........62 percent.
Eye level winds.....Northwest winds up to 8 mph.
Wind (20 ft)........Northwest winds 5 to 13 mph.
Transport winds.....Northwest 9 to 18 mph shifting to the north 6
                    to 8 mph in the late evening and overnight.
Smoke dispersal.....Excellent (69700 knot-ft) early in the evening
                    decreasing to poor (0 knot-ft) late in the
                    night.
Haines Index........3 to 6 or very low to high potential for large
                    plume dominated fire growth.

TIME (EDT)      6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
Sky (%).........25     35     47     52     51     58
Weather cov.....
Weather type....NONE   NONE   NONE   NONE   NONE   NONE
Tstm cov........
CWR.............0      0      0      0      0      0
Temp............65     59     52     47     44     41
RH..............26     30     41     49     53     59
20 ft wind......W 13   NW 10  NW 8   NW 9   NW 6   NW 5
20 ft wind gust.22     16     13     14     10     8
Eye level wind..W 8    NW 6   NW 5   NW 5   NW 4   NW 3
Eye lvl wnd gst.13     10     8      8      6      5
Transport wind..W 18   NW 12  NW 8   NW 7   N 6    N 6
Haines index....6      5      4      4      3      3
Vrate kt-ft/1K..70     3      0      1      1      1
Ventrate Cat....GOOD   POOR   POOR   POOR   POOR   POOR

$$
Forecaster...Snyder
Requested by...Christopher Schultz
Type of request...PRESCRIBED
.TAG 2411298.3/LWX
.DELDT 04/20/24
.FormatterVersion 2.0.0
.EMAIL Christopher.schultz@usda.gov


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