182
FNUS72 KILM 200921
FWSILM
SPOT FORECAST FOR WACCAMAW RX...US WILDLAND FIRE SERVICE
NATIONAL WEATHER SERVICE WILMINGTON NC
521 AM EDT WED MAY 20 2026
FORECAST IS BASED ON IGNITION TIME OF 0500 EDT ON MAY 20.
IF CONDITIONS BECOME UNREPRESENTATIVE...OR IF YOU HAVE QUESTIONS
OR CONCERNS ABOUT THIS FORECAST...CONTACT THE NATIONAL WEATHER
SERVICE IN WILMINGTON AT 910-762-1374.
DISCUSSION
PATCHY FOG THROUGH 0800 THEN MOSTLY SUNNY. LIGHT AND VARIABLE
WINDS THROUGH 0900 BEFORE WINDS FROM THE SOUTH TO SOUTHWEST
DEVELOP. SEA BREEZE WILL REACH THE SITE BETWEEN AROUND 1100
WITH WINDS SHIFTING OUT OF THE EAST-SOUTHEAST TO SOUTHEAST
AND INCREASING IN STRENGTH THROUGH THE REST OF THE AFTERNOON
AND INTO THE EVENING. NO RAIN CHANCES TODAY OR TONIGHT.
FOG POTENTIAL FOR TONIGHT IS MODERATE.
TODAY
SKY/WEATHER.........SUNNY (15-25 PERCENT). PATCHY FOG THROUGH 0800.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....AROUND 83.
MIN HUMIDITY........55 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING SOUTHEAST 7 TO 10 MPH WITH
GUSTS 10 TO 15 MPH AROUND NOON.
MAX MIXING HGT......3800 FT AGL.
TRANSPORT WINDS.....SOUTH 6 TO 14 MPH.
MAX VENT RATE.......MARGINAL (35343 MPH-FT).
MAX LVORI...........9.
MAX ADI.............42.
TIME (EDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........32 36 29 19 10 1 1 1 2 1 1 0
WEATHER COV.....PTY PTY PTY
WEATHER TYPE....FOG FOG FOG
TSTM COV........
CHC OF THDR (%).0 0 0 0 0 0 0 0 0 0 0 0
TEMP............62 63 69 74 78 81 82 83 83 83 83 82
RH..............100 100 97 82 74 67 65 62 60 57 56 62
20 FT WIND DIR..SE SE SE S S S S SE S S SE S
20 FT WIND SPD..3 3 2 3 3 2 7 8 10 11 11 10
20 FT WIND GUST.4 4 4 10 11 14 15 15 14
MIX HGT (KFT)...0.5 0.5 0.6 1.7 2.7 3.4 3.8 3.7 3.3 2.9 2.8 2.2
TRANSP WIND DIR.S SW SW SW SW S S S SE S S S
TRANSP WIND SPD.6 6 6 8 7 6 6 8 9 12 13 14
STABILITY.......A A A A A A A B B B C C
LVORI...........9 9 7 3 3 3 2 1 1 1 1 1
ADI.............6 6 6 18 24 25 28 36 38 42 39 37
VRATE MPH-FT/1K.3 3 3 14 18 19 22 30 31 34 35 31
VENTRATE CAT....PR PR PR PR PR PR PR PR PR PR PR PR
SFC PRES (IN)...013 013 015 015 015 016 016 016 011 011 011 006
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR (15-25 PERCENT).
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....AROUND 68.
MAX HUMIDITY........100 PERCENT.
WIND (20 FT)........SOUTH WINDS 5 TO 9 MPH IN THE EVENING BECOMING
LIGHT.
MIN MIXING HGT......500 FT AGL.
TRANSPORT WINDS.....SOUTH 8 TO 15 MPH.
MIN VENT RATE.......POOR (3963 MPH-FT).
MAX LVORI...........9.
MIN ADI.............4.
TIME (EDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........1 1 2 3 4 5 10 15 20 27 33 39
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CHC OF THDR (%).0 0 0 0 0 0 0 0 0 0 0 0
TEMP............80 79 76 74 73 72 71 70 70 69 69 69
RH..............63 66 75 84 90 94 96 97 97 98 98 99
20 FT WIND DIR..S S S S S S S S S S S S
20 FT WIND SPD..9 9 7 6 5 3 3 3 3 3 3 3
20 FT WIND GUST.13 12 10 8 7 5 5 5 5 5 4 4
MIX HGT (KFT)...2.1 1.7 0.7 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5
TRANSP WIND DIR.S S S S S S S S S S SW SW
TRANSP WIND SPD.15 14 13 12 10 9 10 10 9 8 8 8
STABILITY.......E E E F F F F F F F F F
LVORI...........2 3 4 5 6 6 7 7 9 9 9 9
ADI.............10 9 8 5 5 4 5 5 4 4 4 4
VRATE MPH-FT/1K.31 23 8 5 5 4 5 5 4 4 4 4
VENTRATE CAT....PR PR PR PR PR PR PR PR PR PR PR PR
SFC PRES (IN)...006 006 006 006 006 008 008 008 006 006 006 005
THURSDAY
SKY/WEATHER.........SUNNY (15-25 PERCENT).
CHANCE OF THUNDER...10 PERCENT.
MAX TEMPERATURE.....AROUND 87.
MIN HUMIDITY........62 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING SOUTHWEST 6 TO 7 MPH EARLY
IN THE MORNING, THEN BECOMING LIGHT LATE IN THE
MORNING BECOMING SOUTHEAST 6 TO 8 MPH IN THE
AFTERNOON.
MAX MIXING HGT......4000 FT AGL.
TRANSPORT WINDS.....SOUTH 7 TO 14 MPH.
MAX VENT RATE.......MARGINAL (37106 MPH-FT).
MAX LVORI...........8.
MAX ADI.............46.
TIME (EDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........35 32 28 31 34 37 31 18 7 11 10 28
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CHC OF THDR (%).0 0 0 0 0 0 0 0 0 0 0 10
TEMP............69 70 72 76 79 82 84 85 85 85 86 85
RH..............100 99 94 84 77 70 66 62 64 63 62 62
20 FT WIND DIR..S S SW SW S S S S SE SE S S
20 FT WIND SPD..3 3 6 7 1 2 3 6 7 8 8 8
20 FT WIND GUST.4 4 8 4 5 7 9 11 12 13 13
MIX HGT (KFT)...0.5 0.5 1.0 1.8 2.4 3.2 3.8 4.0 3.9 2.8 2.7 2.7
TRANSP WIND DIR.SW SW SW SW SW S S S S S S S
TRANSP WIND SPD.8 7 8 7 7 7 7 8 9 13 13 14
STABILITY.......A A B B A A A B B B B B
LVORI...........8 8 5 4 3 3 3 1 1 1 1 1
ADI.............8 7 10 16 22 28 33 38 43 44 43 46
VRATE MPH-FT/1K.4 3 8 12 17 22 26 32 36 35 35 37
VENTRATE CAT....PR PR PR PR PR PR PR PR PR PR PR PR
SFC PRES (IN)...005 005 009 009 009 009 009 009 004 004 004 002
FORECASTER...LEBO
REQUESTED BY...ADAM MCCULLOUGH
TYPE OF REQUEST...PRESCRIBED
.TAG 2614094.0/ILM
.DELDT 05/20/26
.FORMATTERVERSION 2.0.0
.EMAIL ADAM_MCCULLOUGH@FWS.GOV
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