545
FNUS71 KLWX 281851
FWSLWX
SPOT FORECAST FOR NORTH RIVER RX...USFS
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
251 PM EDT SAT MAR 28 2026
FORECAST IS BASED ON IGNITION TIME OF 1500 EDT ON MARCH 28.
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 WILL BUILD OVER THE REGION THROUGH SUNDAY. IT APPEARS
WINDS ARE STARTING THEIR SLOW DECLINE THIS AFTERNOON AS THE CENTER
OF THE HIGH MOVES CLOSER. STILL SEEING SOME NORTHWESTERLY GUSTS OF
15-20 MPH IN REGIONAL OBSERVATIONS. HOWEVER, THESE MIGHT NOT BE
OBSERVED AT EYE LEVEL ON THE BURN SITE GIVEN ITS ASPECT. RELATIVE
HUMIDITY HAS DROPPED BELOW 40 PERCENT AND MAY BOTTOM OUT AROUND
30 PERCENT BY LATE AFTERNOON. EXPECT ANY REMAINING WINDS TO DIMINISH
QUICKLY WITH SUNSET.
BELOW NORMAL TEMPERATURES ARE EXPECTED THROUGH SUNDAY MORNING WITH
SEASONABLE TEMPERATURES BY AFTERNOON. THE DRY AIRMASS WILL REMAIN
OVER THE AREA THROUGH SUNDAY. AFTER MODEST RH RECOVERIES TONIGHT,
MINIMUM RH VALUES DROP TO 20-35 PERCENT AGAIN ON SUNDAY. SOUTHWEST
WINDS WILL ALSO GUST 15-25 MPH THROUGH THE DAY AS FINE FUELS CONTINUE
TO DRY. THE NORTHEASTERLY ASPECT OF THE BURN SITE COULD BE SHELTERED
FROM THE HIGHER GUSTS HOWEVER.
REST OF TODAY
SKY/WEATHER.........SUNNY (0-10 PERCENT).
CWR.................0 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....AROUND 45.
MIN HUMIDITY........30 PERCENT.
WIND (20 FT)........NORTHWEST WINDS 8 TO 12 MPH WITH GUSTS TO
AROUND 19 MPH.
MIXING HEIGHT.......4200 FT AGL.
TRANSPORT WINDS.....NORTH 17 TO 21 MPH.
SMOKE DISPERSAL.....EXCELLENT (61400 KNOT-FT).
TIME (EDT) 3PM 4PM 5PM
SKY (%).........4 3 3
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0
CHC OF THDR (%).0 0 0
TEMP............44 44 45
RH..............35 31 30
20 FT WIND DIR..NW NW NW
20 FT WIND SPD..12 10 9
20 FT WIND GUST.19 17 15
MIX HGT (KFT)...4.2 4.1 4.1
TRANSP WIND DIR.N N N
TRANSP WIND SPD.21 18 17
VRATE KT-FT/1K..75 66 61
VENTRATE CAT....GD GD GD
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR (10-20 PERCENT).
CWR.................0 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....AROUND 27.
MAX HUMIDITY........65 PERCENT.
WIND (20 FT)........NORTHWEST WINDS 5 TO 9 MPH EARLY IN THE EVENING
BECOMING LIGHT, THEN BECOMING SOUTH 5 TO 7 MPH
TOWARD DAWN.
MIXING HEIGHT.......200 FT AGL.
TRANSPORT WINDS.....NORTHWEST 6 TO 15 MPH SHIFTING TO THE WEST
AROUND 5 MPH LATE IN THE EVENING, THEN SHIFTING
TO THE SOUTH 5 TO 12 MPH OVERNIGHT.
SMOKE DISPERSAL.....GOOD (42500 KNOT-FT) EARLY IN THE EVENING
DECREASING TO POOR (600 KNOT-FT) LATE IN THE
NIGHT.
TIME (EDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM
SKY (%).........3 4 7 7 7 15
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............42 36 31 30 28 27
RH..............29 42 53 55 58 63
20 FT WIND......NW 8 NW 5 NW 3 SW 3 S 5 S 6
20 FT WIND GUST.15 8 6 6 8 10
MIX HGT (FT)....3300 300 200 200 200 200
TRANSPORT WIND..N 15 NW 7 NW 6 S 5 S 8 S 10
VRATE KT-FT/1K..43 2 1 1 1 2
VENTRATE CAT....FAIR POOR POOR POOR POOR POOR
SUNDAY
SKY/WEATHER.........MOSTLY SUNNY (30-40 PERCENT).
CWR.................0 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....AROUND 55.
MIN HUMIDITY........28 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 8 TO 13 MPH WITH GUSTS TO
AROUND 22 MPH.
MIXING HEIGHT.......4300 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 14 TO 22 MPH.
SMOKE DISPERSAL.....POOR (2600 KNOT-FT) EARLY IN THE MORNING
INCREASING TO EXCELLENT (81600 KNOT-FT) IN THE
AFTERNOON.
TIME (EDT) 6 AM 9 AM NOON 3 PM
SKY (%).........19 36 43 31
WEATHER COV.....
WEATHER TYPE....NONE NONE NONE NONE
TSTM COV........
CWR.............0 0 0 0
CHC OF THDR (%).0 0 0 0
TEMP............27 33 48 54
RH..............65 56 33 28
20 FT WIND......SW 8G14 SW 11G19 SW 13G22 SW 13G22
MIX HGT (FT)....200 800 2000 3900
TRANSPORT WIND..S 14 SW 21 SW 22 SW 22
VRATE KT-FT/1K..3 14 38 75
VENTRATE CAT....POOR POOR POOR GOOD
FORECASTER...SNYDER
REQUESTED BY...AARON STROBEL
TYPE OF REQUEST...PRESCRIBED
.TAG 2608248.1/LWX
.DELDT 03/28/26
.FORMATTERVERSION 2.0.0
.EMAIL COLTEN.MOOR@USDA.GOV,AARON.P.STROBEL@USDA.GOV,JAMES.COLLETT@USDA.GOV
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