309
FNUS72 KCHS 210951
FWSCHS
SPOT FORECAST FOR NS-20...DOD
NATIONAL WEATHER SERVICE CHARLESTON SC
451 AM EST SAT FEB 21 2026
FORECAST IS BASED ON IGNITION TIME OF 0800 EST ON FEBRUARY 21.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
LOW PRESSURE WILL PASS WEST AND NORTH OF THE AREA TODAY INTO
TONIGHT BEFORE PUSHING OFFSHORE OF THE NORTH CAROLINA COAST
SUNDAY. THIS SYSTEM WILL BRING WIDESPREAD RAINS TO REGION.
RAINFALL AMOUNTS THROUGH SUNDAY MORNING WILL GENERALLY RANGE FROM
0.75-1.25 INCHES. THERE IS A RISK FOR A STRONG AND/OR SEVERE
SEVERE THUNDERSTORM IMPACTING THE SPOT LOCATION THIS AFTERNOON
INTO EARLY EVENING AS WELL. DRIER AND COLDER CONDITIONS ARE
EXPECTED EARLY NEXT WEEK AS COLD HIGH PRESSURE BUILDS INTO THE
REGION.
REST OF TODAY
SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS EARLY IN THE MORNING,
THEN SHOWERS AND CHANCE OF THUNDERSTORMS IN THE
AFTERNOON.
CHANCE OF PCPN......80 PERCENT.
MAX TEMPERATURE.....AROUND 73.
MIN HUMIDITY........79 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING EAST AROUND 5 MPH IN THE
LATE MORNING AND AFTERNOON, THEN BECOMING LIGHT
LATE IN THE AFTERNOON. GUSTY AND ERRATIC WINDS
EXPECTED NEAR THUNDERSTORMS EARLY IN THE
MORNING. GUSTY AND ERRATIC WINDS EXPECTED NEAR
THUNDERSTORMS LATE IN THE AFTERNOON.
MIXING HEIGHT.......MAX 1600 FT AGL.
TRANSPORT WINDS.....LIGHT WINDS BECOMING NORTH 8 TO 14 MPH IN THE
LATE MORNING AND EARLY AFTERNOON, THEN SHIFTING
TO THE EAST AROUND 10 MPH LATE IN THE
AFTERNOON.
MAX ADI.............23.
INVERSION END.......1100
TIME (EST) 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........80 80 81 68 74 79 84 86 84 89
WEATHER TYPE....RW RW RW RW RW RW RW RW RW RW
TSTM COV........SCH SCH SCH SCH SCH SCH SCH SCH CHC CHC
CHC OF PCPN (%).30 30 40 40 30 30 40 50 70 80
TEMP............64 66 67 68 70 71 71 71 68 67
RH..............100 97 90 90 81 79 79 79 84 81
20 FT WIND DIR..W N NE E E E E E E NE
20 FT WIND SPD..3 4 5 5 5 5 5 5 5 4
20 FT WIND GUST.9 9 9 11 11 11 11 11 11 9
MIX HGT (KFT)...0.7 0.9 1.0 1.3 1.5 1.6 1.5 1.2 1.3 1.1
TRANSP WIND DIR.W N N N NE NE NE E E E
TRANSP WIND SPD.4 8 8 8 14 14 14 10 10 10
LVORI...........9 7 5 4 3 3 3 4 4 4
ADI.............3 5 10 21 23 22 21 16 16 12
TONIGHT
SKY/WEATHER.........CLOUDY. RAIN SHOWERS AND CHANCE OF
THUNDERSTORMS.
CHANCE OF PCPN......90 PERCENT.
MIN TEMPERATURE.....AROUND 53.
MAX HUMIDITY........100 PERCENT.
WIND (20 FT)........LIGHT WINDS. GUSTY AND ERRATIC WINDS EXPECTED
NEAR THUNDERSTORMS IN THE EVENING. GUSTY AND
ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS
OVERNIGHT.
MAX LVORI...........10.
MIN ADI.............1.
INVERSION BEGIN.....1800
TIME (EST) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM
SKY (%).........95 92 93 92 95 94
WEATHER TYPE....RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR
TSTM COV........CHANCE CHANCE CHANCE CHANCE S CHC
CHC OF PCPN (%).90 80 60 70 90 70
TEMP............65 60 58 58 58 56
RH..............84 100 100 100 100 100
20 FT WIND......E 3 E 2 N 2 NW 2 NW 2 NW 2
20 FT WIND GUST.7 5 5 4 5 7
MIX HGT (FT)....1100 800 600 500 800 700
TRANSPORT WIND..E 4 E 4 E 2 NW 2 NW 2 NW 4
LVORI...........5 10 10 10 10 10
ADI.............4 1 1 1 1 2
SUNDAY
SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING MOSTLY SUNNY. RAIN
SHOWERS LIKELY EARLY IN THE MORNING, THEN
CHANCE OF RAIN SHOWERS IN THE MORNING. SLIGHT
CHANCE OF RAIN SHOWERS IN THE AFTERNOON.
CHANCE OF PCPN......60 PERCENT.
MAX TEMPERATURE.....AROUND 62.
MIN HUMIDITY........49 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING NORTHWEST 5 TO 13 MPH WITH
GUSTS TO AROUND 23 MPH.
MIXING HEIGHT.......MAX 6900 FT AGL.
TRANSPORT WINDS.....WEST AROUND 6 MPH INCREASING TO NORTHWEST
AROUND 34 MPH.
MAX ADI.............124.
INVERSION END.......0800
TIME (EST) 6 AM 9 AM NOON 3 PM
SKY (%).........95 77 66 33
WEATHER TYPE....RNSHWR RNSHWR RNSHWR RNSHWR
TSTM COV........
CHC OF PCPN (%).60 50 50 20
TEMP............56 58 60 57
RH..............100 90 75 59
20 FT WIND......W 4G9 NW 8G16 NW 12G22 NW 13G23
MIX HGT (FT)....700 1600 3900 6200
TRANSPORT WIND..W 6 NW 22 NW 30 NW 34
LVORI...........9 4 3 1
ADI.............5 29 72 119
FORECASTER...BERRY
REQUESTED BY...AARON MURDOCK
TYPE OF REQUEST...PRESCRIBED
.TAG 2603369.0/CHS
.DELDT 02/21/26
.FORMATTERVERSION 2.0.0
.EMAIL AARON.MURDOCK@USDA.GOV,ZACHARY_BROWN@FWS.GOV
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