088
FNUS71 KLWX 211919
FWSLWX
SPOT FORECAST FOR BLACK LINE NORTH RIVER...USFS
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
319 PM EDT SAT MAR 21 2026
FORECAST IS BASED ON IGNITION TIME OF 1600 EDT ON MARCH 21.
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 RETURN WITH CONTINUED ABOVE AVERAGE
TEMPERATURES THIS WEEKEND. A STRONGER COLD FRONT WILL BRING THE
NEXT CHANCE OF SHOWERS AND THUNDERSTORMS SUNDAY EVENING INTO
SUNDAY NIGHT. COOLER WEATHER RETURNS BY EARLY NEXT WEEK AS
CANADIAN HIGH PRESSURE APPROACHES FROM THE WEST.
REST OF TODAY
SKY/WEATHER.........MOSTLY SUNNY (25-35 PERCENT).
CWR.................0 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....AROUND 67.
MIN HUMIDITY........34 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 4 TO 8 MPH.
MIXING HEIGHT.......6100 FT AGL.
TRANSPORT WINDS.....WEST 13 TO 14 MPH.
SMOKE DISPERSAL.....EXCELLENT (65400 KNOT-FT).
TIME (EDT) 4 PM
SKY (%).........30
WEATHER COV.....
WEATHER TYPE....NONE
TSTM COV........
CWR.............0
CHC OF THDR (%).0
TEMP............67
RH..............34
20 FT WIND......SW 6
20 FT WIND GUST.14
MIX HGT (FT)....5900
TRANSPORT WIND..W 13
VRATE KT-FT/1K..65
VENTRATE CAT....GOOD
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR (20-30 PERCENT).
CWR.................0 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....AROUND 48.
MAX HUMIDITY........80 PERCENT.
WIND (20 FT)........WEST WINDS 6 TO 8 MPH.
MIXING HEIGHT.......200 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 7 TO 14 MPH.
SMOKE DISPERSAL.....GOOD (49400 KNOT-FT) EARLY IN THE EVENING
DECREASING TO POOR (1100 KNOT-FT) LATE IN THE
NIGHT.
TIME (EDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM
SKY (%).........36 27 28 18 10 30
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............64 58 53 50 49 49
RH..............37 53 59 66 68 71
20 FT WIND......SW 6 W 6 W 6 W 6 W 6 W 7
20 FT WIND GUST.14 13 13 14 16 17
MIX HGT (FT)....4100 200 200 200 200 200
TRANSPORT WIND..W 14 W 8 W 7 SW 8 SW 10 SW 12
VRATE KT-FT/1K..49 1 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...3 PERCENT.
MAX TEMPERATURE.....AROUND 77.
MIN HUMIDITY........40 PERCENT.
WIND (20 FT)........WEST WINDS 7 TO 14 MPH. GUSTS UP TO 30 MPH.
MIXING HEIGHT.......5200 FT AGL.
TRANSPORT WINDS.....WEST 12 TO 22 MPH INCREASING TO 24 TO 28 MPH
LATE IN THE AFTERNOON.
SMOKE DISPERSAL.....POOR (2300 KNOT-FT) EARLY IN THE MORNING
INCREASING TO EXCELLENT (84900 KNOT-FT) IN THE
AFTERNOON INCREASING TO EXCELLENT (105100
KNOT-FT) LATE IN THE AFTERNOON.
TIME (EDT) 6 AM 9 AM NOON 3 PM
SKY (%).........31 21 33 48
WEATHER COV.....
WEATHER TYPE....NONE NONE NONE NONE
TSTM COV........
CWR.............0 0 0 0
CHC OF THDR (%).0 0 0 0
TEMP............50 56 71 77
RH..............74 72 49 40
20 FT WIND......W 8G18 W 10G22 W 13G28 W 14G29
MIX HGT (FT)....200 300 2300 5000
TRANSPORT WIND..W 14 W 16 W 21 W 24
VRATE KT-FT/1K..2 4 42 105
VENTRATE CAT....POOR POOR FAIR VYGD
FORECASTER...WITT
REQUESTED BY...AARON STROBEL
TYPE OF REQUEST...PRESCRIBED
.TAG 2607006.0/LWX
.DELDT 03/21/26
.FORMATTERVERSION 2.0.0
.EMAIL JAMES.COLTEN@USDA.GOV,COLTEN.MOOR@USDA.GOV,TED.DOCEV@USDA.GOV,AARON.P.STROBEL@USDA.GOV
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