Area Forecast Discussion
Issued by NWS Columbia, SC

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FXUS62 KCAE 271805 AAA
AFDCAE

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE COLUMBIA SC
205 PM EDT WED AUG 27 2014

.SYNOPSIS...
HIGH PRESSURE RIDGING INTO THE FORECAST AREA FROM THE NORTH WILL
BRING DRY WEATHER THROUGH THE END OF THE WORK-WEEK. A WARMING
TREND IS FORECAST AS HIGH PRESSURE ALOFT STRENGTHENS. MOISTURE
WILL INCREASE OVER THE WEEKEND INTO EARLY NEXT WEEK BRINGING BACK
THE CHANCE OF AFTERNOON THUNDERSTORMS.

&&

.NEAR TERM /THROUGH TONIGHT/...
TEMPERATURES CONTINUE TO WARM ACROSS THE AREA THIS AFTERNOON UNDER
FULL SUNSHINE AND THE INFLUENCE OF THE UPPER RIDGE AXIS OVERHEAD.
NO RAIN CHANCES THROUGH TONIGHT WITH HIGH PRESSURE ALOFT AND AT
THE SURFACE PROVIDING A STABLE ATMOSPHERE. NEARLY IDEAL
RADIATIONAL COOLING EXPECTED TONIGHT WITH MOSTLY CLEAR SKIES AND
NEAR CALM WINDS WITH SURFACE HIGH PRESSURE OVERHEAD. OVERNIGHT
LOWS EXPECTED TO BE SIMILAR TO THIS MORNING IN THE 60S. AIRMASS
TOO DRY TO SUPPORT MUCH FOG FORMATION.

&&

.SHORT TERM /THURSDAY THROUGH THURSDAY NIGHT/...
UPPER RIDGE CONTINUES TO BUILD OVER THE SOUTHEAST ON THURSDAY
WHILE SURFACE HIGH PRESSURE WEAKENS OVER THE REGION AND SURFACE
WINDS BECOME MORE SOUTHWESTERLY...ALBEIT GENERALLY 5 KNOTS OR
LESS. DESPITE PRECIPITABLE WATER VALUES RISING TO AROUND AN INCH
ON THURSDAY THE FORECAST SOUNDINGS CONTINUE TO SHOW SIGNIFICANT
DRY AIR THROUGHOUT THE ATMOSPHERIC COLUMN WITH BASICALLY NO
INSTABILITY. TEMPERATURES WILL CLIMB INTO THE MID 90S UNDER MOSTLY
SUNNY SKIES ONCE AGAIN AS THE UPPER RIDGE CONTINUES TO PERSIST
OVER THE SOUTHEAST. NO RAIN CHANCES AGAIN THURSDAY OR THURSDAY NIGHT.
LOWS THURSDAY NIGHT WILL BE A BIT WARMER THAN PREVIOUS NIGHTS WITH
SUCH WARM DAYTIME HIGHS AND A BIT OF A LOW LEVEL JET FORECAST
WHICH WOULD KEEP THE BOUNDARY LAYER MORE MIXED. OVERNIGHT LOWS
GENERALLY IN THE MID TO UPPER 60S.

&&

.LONG TERM /FRIDAY THROUGH TUESDAY/...
UPPER RIDGE WILL BUILD OVER THE AREA THROUGH THE EXTENDED PERIOD.
LOW-LEVEL MOISTURE INCREASES THROUGH THE WEEKEND AND INTO EARLY NEXT
WEEK AS SOUTHEAST FLOW INCREASES FROM THE ATLANTIC...WITH PWAT VALUES
INCREASING TO OVER 2.0 INCHES BY SUNDAY. EXPECT A CHANCE OF SHOWERS
AND THUNDERSTORMS THROUGH THE WEEKEND INTO THE MIDDLE OF NEXT
WEEK. AT THIS TIME IT APPEARS THAT THE SHOWERS AND THUNDERSTORMS
WILL BE MAINLY DIURNALLY DRIVEN. DAYTIME HIGH TEMPERATURES WILL BE
IN THE LOWER TO MIDDLE 90S...OVERNIGHT LOW TEMPERATURES WILL BE IN
THE UPPER 60S FRIDAY...AND LOWER TO MIDDLE 70S FOR THE REMAINDER OF
THE EXTENDED PERIOD.

&&

.AVIATION /18Z WEDNESDAY THROUGH MONDAY/...
VFR CONDITIONS EXPECTED TO CONTINUE THROUGH THE 24 HOUR TAF
PERIOD. DRY AIR WILL PRECLUDE ANY FOG/STRATUS CONCERNS AND WINDS
WILL GENERALLY BE FROM THE NORTH 5 TO 10 MPH THIS AFTERNOON THEN
BECOMING CALM OVERNIGHT. WINDS PICK UP FROM THE SOUTH AFTER 15Z
AROUND 5 MPH WITH HIGH PRESSURE GENERALLY OVER THE AREA.

EXTENDED AVIATION OUTLOOK...LATE NIGHT AND EARLY MORNING FOG WILL BE
POSSIBLE FRIDAY AND SATURDAY AS LOW-LEVEL MOISTURE INCREASES.

&&

.CAE WATCHES/WARNINGS/ADVISORIES...
SC...NONE.
GA...NONE.
&&

$$

SYNOPSIS...HC
NEAR TERM...HC
SHORT TERM...HC
LONG TERM...BC
AVIATION...HC



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