Suppression Forecast
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
572
FNUS71 KLWX 190937
FWSLWX
Spot Forecast for Hone Quarry...USFS
National Weather Service Baltimore MD/Washington DC
537 AM EDT Sat Apr 19 2025
Forecast is based on ignition time of 0500 EDT on April 19.
If conditions become unrepresentative...contact the National Weather
Service.
Please contact our office if you have questions
or concerns with this forecast.
.DISCUSSION...
High pressure to the south dominates the weather pattern for
today, with much warmer temperatures and dry conditions. Winds
will be out of the west to southwest today at around 15-20 mph,
with gusts to around 30 mph. RH values will start out around 70
percent this morning, and drop to minimum values around 30 percent
this afternoon.
Winds will shift to out of the northwest later tonight, with RH
rebounding to around 80 percent. Winds will be lighter tomorrow,
but will gradually shift throughout the day from northwest to
northeast to southeast. Minimum RH values will be around 55-60 percent.
A shower or thunderstorm may also be possible during the afternoon or
evening hours (around 60 percent chance).
.REST OF TONIGHT...
Sky/weather.........Mostly cloudy (70-80 percent).
CWR.................0 percent.
Chance of thunder...0 percent.
Min temperature.....Around 55.
Max humidity........69 percent.
Wind (20 ft)........West winds around 17 mph.
Mixing height.......100 ft AGL.
Transport winds.....West around 17 mph.
Smoke dispersal.....Poor (900 knot-ft).
TIME (EDT) 5AM
Sky (%).........76
Weather cov.....
Weather type....
Tstm cov........
CWR.............0
Chc of thdr (%).0
Temp............56
RH..............59
20 FT wind dir..W
20 FT wind spd..17
20 FT wind gust.24
Mix hgt (kft)...0.1
Transp wind dir.W
Transp wind spd.17
Vrate kt-ft/1K..1
Ventrate Cat....PR
.TODAY...
Sky/weather.........Mostly cloudy (70-80 percent) then becoming
mostly sunny (40-50 percent).
CWR.................0 percent.
Chance of thunder...0 percent.
Max temperature.....Around 77.
Min humidity........31 percent.
Wind (20 ft)........West winds 15 to 18 mph with gusts to around 33
mph.
Mixing height.......5000 ft AGL.
Transport winds.....West 17 to 26 mph shifting to the southwest 28
to 29 mph late in the afternoon.
Smoke dispersal.....Poor (800 knot-ft) early in the morning
increasing to excellent (100400 knot-ft) in the
afternoon increasing to excellent (114700
knot-ft) late in the afternoon.
TIME (EDT) 6 AM 8 AM 10 AM NOON 2 PM 4 PM
Sky (%).........83 89 87 84 70 59
Weather cov.....
Weather type....NONE NONE NONE NONE NONE NONE
Tstm cov........
CWR.............0 0 0 0 0 0
Chc of thdr (%).0 0 0 0 0 0
Temp............55 57 65 71 75 77
RH..............64 69 56 50 41 34
20 ft wind......W 17 W 16 W 15 W 15 W 17 W 18
20 ft wind gust.25 25 26 28 31 33
Mix hgt (ft)....100 100 1800 3100 4600 4900
Transport wind..W 17 W 17 W 25 W 24 W 25 SW 28
Vrate kt-ft/1K..1 2 39 66 100 117
Ventrate Cat....POOR POOR POOR GOOD VYGD VYGD
.TONIGHT...
Sky/weather.........Mostly cloudy (65-75 percent).
CWR.................0 percent.
Chance of thunder...2 percent.
Min temperature.....Around 58.
Max humidity........80 percent.
Wind (20 ft)........West winds 10 to 16 mph with gusts to around 31
mph shifting to the northwest around 9 mph
early in the morning.
Mixing height.......100 ft AGL.
Transport winds.....West 16 to 25 mph decreasing to 13 to 15 mph
early in the evening, then shifting to the
northwest around 12 mph early in the morning.
Smoke dispersal.....Excellent (78500 knot-ft) early in the evening
decreasing to poor (700 knot-ft) late in the
night.
TIME (EDT) 6 PM 9 PM MIDNGT 3 AM
Sky (%).........59 62 80 74
Weather cov.....
Weather type....NONE NONE NONE NONE
Tstm cov........
CWR.............0 0 0 0
Chc of thdr (%).0 0 0 0
Temp............75 67 63 61
RH..............35 47 54 65
20 FT wind......W 16G31 W 13G21 W 13G22 W 10G16
Mix hgt (ft)....3600 100 200 100
Transport wind..W 25 W 14 W 15 W 14
Vrate kt-ft/1K..79 1 2 1
Ventrate Cat....GOOD POOR POOR POOR
.SUNDAY...
Sky/weather.........Mostly cloudy (75-85 percent). Rain showers
likely and chance of thunderstorms late in the
afternoon.
CWR.................0 percent increasing to 60 percent late in the
afternoon.
Chance of thunder...30 percent.
Max temperature.....Around 70.
Min humidity........57 percent.
Wind (20 ft)........Northwest winds 7 to 9 mph shifting to the
northeast around 6 mph late in the morning,
then shifting to the southeast in the
afternoon. Gusty and erratic winds expected
near thunderstorms late in the afternoon.
Mixing height.......3300 ft AGL.
Transport winds.....Northwest 8 to 12 mph shifting to the south 9
to 12 mph late in the afternoon.
Smoke dispersal.....Poor (1100 knot-ft) early in the morning
increasing to fair (26000 knot-ft) in the
afternoon.
TIME (EDT) 6 AM 10 AM 2 PM
Sky (%).........89 79 71
Weather cov..... LIKELY
Weather type....NONE NONE RNSHWR
Tstm cov........ CHANCE
CWR.............0 0 60
Chc of thdr (%).0 0 30
Temp............58 63 69
RH..............77 70 57
20 FT wind......NW 9G13 N 6G13 SE 6G13
Mix hgt (ft)....100 1300 3300
Transport wind..NW 12 NW 9 W 9
Vrate kt-ft/1K..1 10 26
Ventrate Cat....POOR POOR POOR
$$
Forecaster...Pallozzi
Requested by...Collett
Type of request...PRESCRIBED
.TAG 2511051.0/LWX
.DELDT 04/19/25
.FormatterVersion 2.0.0
.EMAIL jay.collett@usda.gov