453
FNUS72 KCHS 181231
FWSCHS
SPOT FORECAST FOR NS-15, 4/17/19...U.S. FISH AND WILDLIFE
NATIONAL WEATHER SERVICE CHARLESTON SC
831 AM EDT THU APR 18 2019
FORECAST IS BASED ON IGNITION TIME OF 0900 EDT ON APRIL 18.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
UNDER HIGH PRESSURE, WE EXPECT NO RAIN TODAY THROUGH THIS
EVENING. AS THE SEA BREEZE ADVANCES INLAND, SOUTHEAST WINDS
COULD GUST AROUND 20 MPH THIS AFTERNOON. SOUTH WINDS WILL
GRADUALLY STRENGTHEN TONIGHT, AND WINDS COULD BEGIN TO GUST
TO AT LEAST 20-25 MPH AFTER MIDNIGHT. ALSO, SHOWERS ARE POSSIBLE
AFTER MIDNIGHT. A STRONG COLD FRONT WILL SWEEP THROUGH THE
REGION FRIDAY. AHEAD OF THAT FRONT, EXPECT STRONG SOUTH WINDS,
AND A BAND OF THUNDERSTORMS, SOME SEVERE, WILL PUSH THROUGH
THE AREA DURING THE AFTERNOON. THEN, A TROUGH OF LOW PRESSURE WILL
LINGER WITH GUSTY WEST-SOUTHWEST WINDS, CLOUDS AND EVEN A FEW
SHOWERS THROUGH SATURDAY. HIGH PRESSURE WILL BUILD INTO THE AREA
LATE THIS WEEKEND AND WILL PREVAIL INTO THE MIDDLE OF NEXT WEEK.
FOG POTENTIAL FOR TONIGHT: NONE.
REST OF TODAY
SKY/WEATHER.........PARTLY SUNNY.
CHANCE OF PCPN......0 PERCENT.
MAX TEMPERATURE.....AROUND 80.
MIN HUMIDITY........54 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING SOUTH AROUND 16 MPH.
MIXING HEIGHT.......MAX 5300 FT AGL.
TRANSPORT WINDS.....SOUTH 12 TO 20 MPH.
MAX ADI.............62.
INVERSION END.......0900
TIME (EDT) 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........45 48 52 62 56 65 72 67 62
WEATHER TYPE....
TSTM COV........
CHC OF PCPN (%).0 0 0 0 0 0 0 0 0
TEMP............68 73 76 78 80 80 79 78 77
RH..............81 68 62 58 54 54 56 60 62
20 FT WIND DIR..S S S S S S S S S
20 FT WIND SPD..3 6 8 10 11 13 15 16 16
20 FT WIND GUST.4 9 11 14 18 22 23 23 23
MIX HGT (KFT)...1.1 2.0 2.8 3.6 4.3 5.1 5.3 4.4 3.6
TRANSP WIND DIR.S S S S S S S S S
TRANSP WIND SPD.12 12 12 18 18 18 20 20 20
LVORI...........4 3 1 1 1 1 1 1 1
ADI.............10 31 38 46 52 57 62 60 55
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS EARLY IN THE MORNING. CHANCE OF
SHOWERS AND THUNDERSTORMS EARLY IN THE MORNING.
CHANCE OF PCPN......30 PERCENT.
MIN TEMPERATURE.....AROUND 69.
MAX HUMIDITY........93 PERCENT.
WIND (20 FT)........SOUTH WINDS 8 TO 15 MPH. GUSTY AND ERRATIC
WINDS EXPECTED NEAR THUNDERSTORMS EARLY IN THE
MORNING.
MAX LVORI...........5.
MIN ADI.............9.
INVERSION BEGIN.....2000, BUT THIS INVERSION COULD BREAK AFTER MIDNIGHT.
TIME (EDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM
SKY (%).........60 52 66 58 73 88
WEATHER TYPE....NONE NONE NONE NONE NONE RNSHWR
TSTM COV........ S CHC
CHC OF PCPN (%).0 0 0 0 10 20
TEMP............77 71 69 69 70 70
RH..............62 79 87 93 90 90
20 FT WIND......S 15 S 8 S 9 S 10 S 11 S 12
20 FT WIND GUST.22 11 13 16 16 18
MIX HGT (FT)....2900 800 400 500 600 600
TRANSPORT WIND..S 14 S 14 S 10 S 12 S 12 S 14
LVORI...........1 4 5 5 5 5
ADI.............44 9 9 10 11 12
FRIDAY
SKY/WEATHER.........CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS IN
THE MORNING, THEN SHOWERS AND THUNDERSTORMS
LIKELY LATE IN THE MORNING. SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON.
CHANCE OF PCPN......90 PERCENT.
MAX TEMPERATURE.....AROUND 80.
MIN HUMIDITY........69 PERCENT.
WIND (20 FT)........BREEZY. SOUTH WINDS 13 TO 22 MPH WITH GUSTS TO
AROUND 32 MPH INCREASING TO 21 TO 25 MPH WITH
GUSTS TO AROUND 36 MPH IN THE AFTERNOON. GUSTY
AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS.
MIXING HEIGHT.......MAX 3100 FT AGL.
TRANSPORT WINDS.....SOUTH AROUND 16 MPH INCREASING TO AROUND 30 MPH
LATE IN THE MORNING, THEN INCREASING TO AROUND
42 MPH EARLY IN THE AFTERNOON DECREASING TO
AROUND 30 MPH LATE IN THE AFTERNOON.
MAX ADI.............102.
INVERSION END.......NO INVERSION TO START DAY.
TIME (EDT) 6 AM 9 AM NOON 3 PM
SKY (%).........87 88 92 94
WEATHER TYPE....RNSHWR RNSHWR RNSHWR RNSHWR
TSTM COV........CHANCE CHANCE LIKELY DEFNTE
CHC OF PCPN (%).30 40 70 90
TEMP............70 73 78 79
RH..............90 84 74 69
20 FT WIND......S 13G20 S 18G29 S 24G36 S 24G32
MIX HGT (FT)....700 1200 3000 2200
TRANSPORT WIND..S 16 S 30 S 42 S 30
LVORI...........5 4 3 1
ADI.............13 35 96 74
FORECASTER...ROWLEY
REQUESTED BY...BROCK WILLIAMS
TYPE OF REQUEST...PRESCRIBED
.TAG 1906508.0/CHS
.DELDT 04/18/19
.EMAIL BROCK_WILLIAMS@FWS.GOV
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