425
FNUS71 KLWX 131807
FWSLWX
SPOT FORECAST FOR NORTH RIVER RX...USFS
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
207 PM EDT FRI MAR 13 2026
FORECAST IS BASED ON IGNITION TIME OF 1500 EDT ON MARCH 13.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
PLEASE CONTACT OUR OFFICE IF YOU HAVE QUESTIONS
OR CONCERNS WITH THIS FORECAST.
..WIND ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING
DISCUSSION
WINDY CONDITIONS WILL CONTINUE AHEAD OF A COLD FRONT WHICH WILL
CROSS THE AREA TONIGHT. MINIMUM RH VALUES WILL BE AROUND 20 TO
30 PERCENT WITH WIND GUSTS 40 TO 50 MPH EXPECTED. GUSTY WINDS
CONTINUE OVERNIGHT AS OVERNIGHT LOWS DROP INTO THE LOW 30S.
RELATIVE HUMIDITY VALUES RECOVER SLIGHTLY OVERNIGHT AND WILL BE
AROUND 60 PERCENT.
SATURDAY WILL BE THE DRIEST DAY REGION WIDE, BEHIND THE FRONTAL
PASSAGE FROM TONIGHT. RH VALUES COULD DROP INTO THE UPPER TEENS TO
20S ACROSS MUCH OF THE AREA. WINDS WILL BE LOWER COMPARED TO FRIDAY,
BUT WILL REMAIN SOMEWHAT ELEVATED, ESPECIALLY ALONG/NORTH OF THE
INTERSTATE 66 CORRIDOR, WHERE 20-35 MPH WIND GUSTS CAN BE EXPECTED.
A SPECIAL WEATHER STATEMENT MAY BE NEEDED.
GUSTY WINDS BUT INCREASING RHS ARE FORECAST SUNDAY AHEAD OF ANOTHER
FRONT, WHICH LOOKS TO BRING WETTING RAINS SUNDAY EVENING/NIGHT.
THERE IS LESS OF A THREAT SUNDAY, BUT ANY ONGOING FIRES COULD FEEL
THE IMPACTS OF SOME GUSTY SOUTHEASTERLY FLOW (20-30 MPH GUSTS).
SHOWERS AND THUNDERSTORMS LOOK LIKELY ON MONDAY BEFORE STRONG WEST-
NORTHWESTERLY WINDS OVERSPREAD THE AREA MONDAY EVENING INTO TUESDAY.
REST OF TODAY
SKY/WEATHER.........SUNNY (10-20 PERCENT).
CWR.................0 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....AROUND 51.
MIN HUMIDITY........36 PERCENT.
WIND (20 FT)........BREEZY. SOUTHWEST WINDS 28 TO 29 MPH WITH GUSTS
TO AROUND 55 MPH.
MIXING HEIGHT.......4500 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 40 TO 44 MPH.
SMOKE DISPERSAL.....EXCELLENT (138700 KNOT-FT).
TIME (EDT) 3 PM 5 PM
SKY (%).........15 8
WEATHER COV.....
WEATHER TYPE....NONE NONE
TSTM COV........
CWR.............0 0
CHC OF THDR (%).0 0
TEMP............48 51
RH..............37 36
20 FT WIND......SW 29 SW 28
20 FT WIND GUST.55 52
MIX HGT (FT)....4000 4500
TRANSPORT WIND..SW 40 SW 43
VRATE KT-FT/1K..139 166
VENTRATE CAT....VYGD EXNT
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR (5-15 PERCENT).
CWR.................0 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....AROUND 33.
MAX HUMIDITY........61 PERCENT.
WIND (20 FT)........BREEZY. WEST WINDS 22 TO 26 MPH WITH GUSTS TO
AROUND 51 MPH SHIFTING TO THE NORTHWEST 18 TO
20 MPH WITH GUSTS TO AROUND 40 MPH AFTER 3 AM.
MIXING HEIGHT.......2200 FT AGL.
TRANSPORT WINDS.....SOUTHWEST AROUND 39 MPH BECOMING WEST 24 TO 26
MPH.
SMOKE DISPERSAL.....EXCELLENT (149200 KNOT-FT) EARLY IN THE EVENING
DECREASING TO GOOD (51600 KNOT-FT) LATE IN THE
NIGHT DECREASING TO GOOD (47100 KNOT-FT) EARLY
IN THE MORNING.
TIME (EDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM
SKY (%).........10 7 14 7 5 4
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............49 47 44 42 39 36
RH..............40 47 53 53 54 61
20 FT WIND......W 26 W 24 W 22 W 22 W 23 NW 20
20 FT WIND GUST.51 47 45 44 43 40
MIX HGT (FT)....4400 2500 3700 3600 3000 2500
TRANSPORT WIND..SW 39 W 24 W 25 W 25 W 25 W 24
VRATE KT-FT/1K..149 52 82 78 65 52
VENTRATE CAT....VYGD FAIR GOOD GOOD GOOD FAIR
SATURDAY
SKY/WEATHER.........MOSTLY SUNNY (30-40 PERCENT).
CWR.................0 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....AROUND 52.
MIN HUMIDITY........23 PERCENT.
WIND (20 FT)........NORTHWEST WINDS 12 TO 18 MPH. GUSTS UP TO 36
MPH DECREASING TO 25 MPH LATE IN THE AFTERNOON.
MIXING HEIGHT.......3500 FT AGL.
TRANSPORT WINDS.....NORTHWEST 21 TO 22 MPH INCREASING TO 23 TO 31
MPH IN THE LATE MORNING AND EARLY AFTERNOON,
THEN SHIFTING TO THE WEST 17 TO 20 MPH LATE IN
THE AFTERNOON.
SMOKE DISPERSAL.....GOOD (35900 KNOT-FT) EARLY IN THE MORNING
INCREASING TO EXCELLENT (77700 KNOT-FT) IN THE
AFTERNOON.
TIME (EDT) 6 AM 9 AM NOON 3 PM
SKY (%).........7 8 28 51
WEATHER COV.....
WEATHER TYPE....NONE NONE NONE NONE
TSTM COV........
CWR.............0 0 0 0
CHC OF THDR (%).0 0 0 0
TEMP............35 35 45 51
RH..............54 43 27 23
20 FT WIND......W 18G35 NW 18G36 NW 17G33 NW 13G24
MIX HGT (FT)....2000 2400 3100 3400
TRANSPORT WIND..W 22 NW 31 NW 28 NW 23
VRATE KT-FT/1K..39 64 75 69
VENTRATE CAT....POOR GOOD GOOD GOOD
FORECASTER...STUCK
REQUESTED BY...AARON STROBEL
TYPE OF REQUEST...PRESCRIBED
.TAG 2605652.0/LWX
.DELDT 03/13/26
.FORMATTERVERSION 2.0.0
.EMAIL TED.DOCEV@USDA.GOV,AARON.P.STROBEL@USDA.GOV,JAMES.COLLETT@USDA.GOV
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