437
FNUS71 KLWX 251120
FWSLWX
SPOT FORECAST FOR CHIMNEY ROCK RX...NPS
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
720 AM EDT THU APR 25 2024
FORECAST IS BASED ON IGNITION TIME OF 0800 EDT ON APRIL 25.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
PLEASE CONTACT OUR OFFICE IF YOU HAVE QUESTIONS
OR CONCERNS WITH THIS FORECAST.
DISCUSSION
DRY CONDITIONS ARE EXPECTED TODAY WITH MIN RH VALUES THIS
AFTERNOON ARE FORECAST TO BE AROUND 40 PERCENT ACROSS THE AREA.
SMOKE DISPERSION TODAY WILL BE MAINLY POOR TO FAIR GIVEN LIGHT
NORTHEAST WINDS. BETTER MOISTURE RECOVERY IS EXPECTED TONIGHT,
WITH MAXIMUM RH CLOSER TO 80 TO 90 PERCENT.
A DRY, PERHAPS FIRE SENSITIVE AFTERNOON, IS FORECAST ON FRIDAY,
WHEN RH VALUES ARE EXPECTED TO DROP INTO THE 25 TO 30 PERCENT
RANGE. SMOKE DISPERSION FRIDAY AFTERNOON WILL BE POOR TO FAIR
ONCE AGAIN IN LIGHT WINDS.
REST OF TODAY
SKY/WEATHER.........PARTLY SUNNY (45-55 PERCENT).
CWR.................0 PERCENT.
MAX TEMPERATURE.....AROUND 53.
MIN HUMIDITY........43 PERCENT.
EYE LEVEL WINDS.....NORTHEAST WINDS UP TO 5 MPH.
WIND (20 FT)........NORTHEAST WINDS 5 TO 9 MPH.
TRANSPORT WINDS.....NORTHEAST 9 TO 18 MPH DECREASING TO 6 TO 8 MPH
IN THE AFTERNOON.
SMOKE DISPERSAL.....POOR (7200 KNOT-FT) EARLY IN THE MORNING
INCREASING TO FAIR (19600 KNOT-FT) IN THE
AFTERNOON.
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME
DOMINATED FIRE GROWTH.
TIME (EDT) 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........56 51 44 57 58 58 59 59 60 60
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0
TEMP............38 40 42 44 45 48 50 52 53 53
RH..............57 55 50 55 58 51 46 43 43 43
20 FT WIND DIR..NE NE NE NE NE NE NE E E E
20 FT WIND SPD..9 8 7 6 6 5 5 5 5 5
20 FT WIND GUST.15 13 10 8 7 7 7 7 6 6
EYE LVL WND DIR.NE NE NE NE NE NE NE E E E
EYE LVL WND SPD.5 5 4 4 4 3 3 3 3 3
EYE LVL WND GST.9 8 6 5 4 4 4 4 4
TRANSP WIND DIR.NE NE NE NE NE NE NE NE NE NE
TRANSP WIND SPD.18 16 13 10 9 8 8 7 7 6
HAINES INDEX....2 2 2 2 2 2 2 2 2 2
VRATE KT-FT/1K..20 18 15 13 11 10 10 9 9 7
VENTRATE CAT....PR PR PR PR PR PR PR PR PR PR
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (50-60 PERCENT) THEN BECOMING
PARTLY CLOUDY (35-45 PERCENT).
CWR.................0 PERCENT.
MIN TEMPERATURE.....AROUND 37.
MAX HUMIDITY........85 PERCENT.
EYE LEVEL WINDS.....EAST WINDS AROUND 3 MPH EARLY IN THE EVENING
BECOMING LIGHT, THEN BECOMING SOUTH AROUND 3
MPH OVERNIGHT BECOMING LIGHT.
WIND (20 FT)........EAST WINDS AROUND 5 MPH EARLY IN THE EVENING
BECOMING LIGHT, THEN BECOMING SOUTH AROUND 5
MPH OVERNIGHT BECOMING LIGHT.
TRANSPORT WINDS.....EAST 1 TO 5 MPH SHIFTING TO THE SOUTHEAST
AROUND 1 MPH IN THE LATE EVENING AND OVERNIGHT,
THEN SHIFTING TO THE EAST 2 TO 3 MPH AFTER 3
AM.
SMOKE DISPERSAL.....POOR (200 KNOT-FT).
HAINES INDEX........2 TO 3 OR VERY LOW POTENTIAL FOR LARGE PLUME
DOMINATED FIRE GROWTH.
TIME (EDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM
SKY (%).........56 47 48 44 35 37
WEATHER COV.....
WEATHER TYPE....NONE NONE NONE NONE NONE NONE
TSTM COV........
CWR.............0 0 0 0 0 0
TEMP............53 50 47 43 41 39
RH..............43 50 56 65 73 82
20 FT WIND......E 5 E 3 SE 3 SE 3 S 5 SE 3
20 FT WIND GUST.6 5 5 5 6 5
EYE LEVEL WIND..E 3 E 2 SE 2 SE 2 S 3 SE 2
EYE LVL WND GST.4 3 3 3 4 3
TRANSPORT WIND..E 5 E 2 SE 1 SE 1 E 1 E 2
HAINES INDEX....2 3 3 3 3 3
VRATE KT-FT/1K..5 1 0 0 0 1
VENTRATE CAT....POOR POOR POOR POOR POOR POOR
FRIDAY
SKY/WEATHER.........MOSTLY SUNNY (25-35 PERCENT).
CWR.................0 PERCENT.
MAX TEMPERATURE.....AROUND 59.
MIN HUMIDITY........33 PERCENT.
EYE LEVEL WINDS.....LIGHT WINDS BECOMING SOUTHEAST UP TO 5 MPH IN
THE LATE MORNING AND AFTERNOON.
WIND (20 FT)........SOUTHEAST WINDS 5 TO 9 MPH EARLY IN THE MORNING
BECOMING LIGHT, THEN BECOMING SOUTHEAST 5 TO 9
MPH IN THE LATE MORNING AND AFTERNOON.
TRANSPORT WINDS.....EAST 5 TO 13 MPH SHIFTING TO THE SOUTHEAST
AROUND 14 MPH IN THE AFTERNOON.
SMOKE DISPERSAL.....POOR (1000 KNOT-FT) EARLY IN THE MORNING
INCREASING TO GOOD (47500 KNOT-FT) IN THE
AFTERNOON.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
DOMINATED FIRE GROWTH.
TIME (EDT) 6 AM 8 AM 10 AM NOON 2 PM 4 PM
SKY (%).........36 32 29 28 30 27
WEATHER COV.....
WEATHER TYPE....NONE NONE NONE NONE NONE NONE
TSTM COV........
CWR.............0 0 0 0 0 0
TEMP............38 42 48 54 57 59
RH..............85 73 58 43 35 33
20 FT WIND......SE 2 E 3 SE 6 SE 8 SE 9 SE 9
20 FT WIND GUST.5 5 8 12 13 14
EYE LEVEL WIND..SE 1 E 2 SE 4 SE 5 SE 5 SE 5
EYE LVL WND GST.3 3 5 7 8 8
TRANSPORT WIND..E 5 E 6 E 9 SE 13 SE 14 SE 14
HAINES INDEX....3 3 3 3 3 3
VRATE KT-FT/1K..1 2 10 25 39 48
VENTRATE CAT....POOR POOR POOR POOR POOR FAIR
FORECASTER...LEDBETTER
REQUESTED BY...J.SEABRIGHT
TYPE OF REQUEST...PRESCRIBED
.TAG 2411875.2/LWX
.DELDT 04/25/24
.FORMATTERVERSION 2.0.0
.EMAIL JEFFREY_SEABRIGHT@NPS.GOV
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