699
FNUS71 KLWX 041019
FWSLWX
SPOT FORECAST FOR NORTH RIVER RX...USFS
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
619 AM EDT SAT APR 4 2026
FORECAST IS BASED ON IGNITION TIME OF 0700 EDT ON APRIL 04.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
PLEASE CONTACT OUR OFFICE IF YOU HAVE QUESTIONS
OR CONCERNS WITH THIS FORECAST.
DISCUSSION
MOSTLY SUNNY SKIES ARE EXPECTED TO START THE DAY, WITH JUST SOME
THIN PASSING HIGH CLOUDS AT TIMES. TEMPERATURES ARE EXPECTED TO
CLIMB TO NEAR RECORD HIGHS FOR EARLY APRIL, REACHING THE MID TO
UPPER 70S EVEN AT THE HIGH ELEVATION OF THE SITE. ODDS FAVOR
CONDITIONS STAYING PRECIPITATION FREE THROUGH THE DAY, BUT THERE
IS AROUND A 20 PERCENT CHANCE FOR AN AFTERNOON SHOWER OR STORM.
WINDS TODAY MAY START OUT LIGHT OUT OF THE WEST, BUT WILL PICK UP
OUT OF THE SOUTH OVER THE COURSE OF THE DAY, AND COULD GUST TO
AROUND 20-30 MPH DURING THE AFTERNOON. MINIMUM RH VALUES WILL BE
AROUND 50 PERCENT TODAY, BEFORE REBOUNDING TO CLOSE TO 100 PERCENT
TONIGHT. WINDS WILL REMAIN GUSTY OUT OF THE SOUTH TONIGHT.
A COLD FRONT WILL MOVE IN FROM THE NORTHWEST TOMORROW MORNING,
BRINGING WHAT WILL LIKELY BE A FEW HOUR LONG PERIOD OF RAIN. A
WETTING RAIN APPEARS HIGHLY LIKELY. CONDITIONS GRADUALLY CLEAR OUT
AND WINDS PICK UP OUT OF THE WEST BEHIND THE FRONT DURING THE
AFTERNOON HOURS. MINIMUM RH VALUES SUNDAY AFTERNOON WILL BE AROUND
60 PERCENT, AND WINDS MAY GUST TO AROUND 30 MPH OUT OF THE WEST.
REST OF TODAY
SKY/WEATHER.........MOSTLY SUNNY (25-35 PERCENT). SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS LATE IN THE
AFTERNOON.
CWR.................20 PERCENT.
CHANCE OF THUNDER...18 PERCENT.
MAX TEMPERATURE.....AROUND 76.
MIN HUMIDITY........50 PERCENT.
WIND (20 FT)........WEST WINDS 6 TO 8 MPH SHIFTING TO THE SOUTH 9
TO 14 MPH WITH GUSTS TO AROUND 26 MPH IN THE
AFTERNOON. GUSTY AND ERRATIC WINDS EXPECTED
NEAR THUNDERSTORMS LATE IN THE AFTERNOON.
MIXING HEIGHT.......5500 FT AGL.
TRANSPORT WINDS.....WEST 9 TO 10 MPH SHIFTING TO THE SOUTH 13 TO 20
MPH IN THE AFTERNOON.
SMOKE DISPERSAL.....POOR (1600 KNOT-FT) EARLY IN THE MORNING
INCREASING TO EXCELLENT (89300 KNOT-FT) IN THE
AFTERNOON.
TIME (EDT) 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........39 23 17 25 31 45 32 40 39 42 41
WEATHER COV..... SCH
WEATHER TYPE.... RW
TSTM COV........ SCH
CWR.............0 0 0 10 10 10 10 10 10 10 20
CHC OF THDR (%).0 0 0 0 10 10 10 10 10 10 20
TEMP............58 59 63 68 71 74 75 75 76 74 74
RH..............77 83 75 63 55 50 46 46 45 48 48
20 FT WIND DIR..W W W W SW S S S S S S
20 FT WIND SPD..7 6 6 6 8 9 10 12 13 14 14
20 FT WIND GUST.15 15 15 16 18 21 23 25 25 26 26
MIX HGT (KFT)...0.2 0.2 0.5 1.6 2.9 4.3 4.9 5.2 5.5 5.3 4.5
TRANSP WIND DIR.W W W SW SW S S S S S S
TRANSP WIND SPD.10 10 10 9 9 13 16 17 17 20 20
VRATE KT-FT/1K..2 2 5 13 23 47 68 78 83 89 77
VENTRATE CAT....PR PR PR PR PR FR GD GD GD GD GD
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (40-50 PERCENT) THEN BECOMING
MOSTLY CLOUDY (65-75 PERCENT). SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS.
CWR.................20 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MIN TEMPERATURE.....AROUND 53.
MAX HUMIDITY........100 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 14 TO 15 MPH WITH GUSTS TO
AROUND 32 MPH. GUSTY AND ERRATIC WINDS EXPECTED
NEAR THUNDERSTORMS EARLY IN THE EVENING.
MIXING HEIGHT.......600 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 20 TO 26 MPH.
SMOKE DISPERSAL.....EXCELLENT (62400 KNOT-FT) EARLY IN THE EVENING
DECREASING TO POOR (10500 KNOT-FT) LATE IN THE
NIGHT.
TIME (EDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........49 42 49 53 54 52 71 68 71 77 85 86
WEATHER COV..... SCH SCH
WEATHER TYPE.... RW RW
TSTM COV........ SCH
CWR.............10 20 10 10 0 0 0 0 10 10 10 20
CHC OF THDR (%).10 20 10 10 0 0 0 0 10 10 10 20
TEMP............72 69 66 64 63 62 61 61 60 58 58 58
RH..............51 57 65 70 78 81 84 84 87 93 93 93
20 FT WIND DIR..S S S SW SW SW SW SW SW SW SW SW
20 FT WIND SPD..14 14 14 14 14 14 15 15 15 15 15 15
20 FT WIND GUST.28 29 30 30 31 30 31 31 31 32 32 32
MIX HGT (KFT)...3.7 2.0 1.0 0.9 0.7 0.7 0.6 0.8 0.7 0.7 0.7 1.1
TRANSP WIND DIR.S SW SW SW SW SW SW SW SW SW SW SW
TRANSP WIND SPD.20 20 21 22 21 22 21 21 22 24 21 26
VRATE KT-FT/1K..62 34 18 17 13 13 11 14 13 15 12 25
VENTRATE CAT....GD PR PR PR PR PR PR PR PR PR PR PR
SUNDAY
SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT) THEN BECOMING
MOSTLY SUNNY (45-55 PERCENT). RAIN SHOWERS
DURING THE MORNING.
CWR.................90 PERCENT.
CHANCE OF THUNDER...15 PERCENT.
MAX TEMPERATURE.....AROUND 60.
MIN HUMIDITY........53 PERCENT.
WIND (20 FT)........WEST WINDS 12 TO 15 MPH BECOMING 12 TO 14 MPH
IN THE AFTERNOON. GUSTS UP TO 32 MPH.
MIXING HEIGHT.......3700 FT AGL.
TRANSPORT WINDS.....WEST 20 TO 25 MPH.
SMOKE DISPERSAL.....POOR (12100 KNOT-FT) EARLY IN THE MORNING
INCREASING TO EXCELLENT (70100 KNOT-FT) IN THE
AFTERNOON.
TIME (EDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........87 92 91 91 91 91 91 91 74 65 57 48
WEATHER COV.....CHC LKY DEF DEF DEF DEF DEF DEF
WEATHER TYPE....RW RW RW RW RW RW RW RW
TSTM COV........
CWR.............50 70 90 90 90 90 90 90 10 10 10 10
CHC OF THDR (%).20 20 10 10 10 0 0 0 0 0 0 0
TEMP............55 57 57 55 56 58 58 58 57 57 56 55
RH..............100 96 96 96 86 77 72 64 62 57 55 53
20 FT WIND DIR..SW SW W W W W W W W W W W
20 FT WIND SPD..15 14 14 14 13 12 12 12 13 13 13 14
20 FT WIND GUST.32 31 31 31 30 29 28 28 28 28 29 29
MIX HGT (KFT)...0.7 1.0 1.2 1.1 1.2 1.7 2.1 2.6 3.1 3.5 3.7 3.6
TRANSP WIND DIR.SW SW W W W W W W W W W W
TRANSP WIND SPD.21 20 21 20 20 22 25 25 23 23 22 22
VRATE KT-FT/1K..12 16 22 19 21 33 46 57 61 69 70 69
VENTRATE CAT....PR PR PR PR PR PR FR FR GD GD GD GD
FORECASTER...PALLOZZI
REQUESTED BY...AARON STROBEL
TYPE OF REQUEST...PRESCRIBED
.TAG 2608967.0/LWX
.DELDT 04/04/26
.FORMATTERVERSION 2.0.0
.EMAIL COLTEN.MOOR@USDA.GOV,AARON.P.STROBEL@USDA.GOV,JAMES.COLLETT@USDA.GOV
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