Forecast Discussion
000
FXUS62 KFFC 091510
AFDFFC
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
1010 AM EST TUE MAR 9 2010
.UPDATE...
NO CHANGES NEEDED TO THE PREVIOUS MORNING FORECAST. SATELLITE SHOWS
INCREASING MID AND LOW CLOUDS OVER AL APPROACHING WEST GA AT THIS
TIME. EXPECT SCATTERED SHOWERS OVER AL TO CONTINUE TO WORK INTO
NORTH AND WEST GA DURING THE AFTERNOON.
&&
.PREV DISCUSSION... /ISSUED 505 AM EST TUE MAR 9 2010/
SHORT TERM /TODAY THROUGH WEDNESDAY/...
UPPER RIDGE MOVING E TODAY WITH AN APPROACHING SHORT WAVE GIVING THE
CHANCE FOR LIGHT SHOWERS FOR N AND W GA TODAY. BETTER SOUTH LOW
LEVEL FLOW STARTS TONIGHT WITH OCCASIONAL TO LIKELY BUT GENERALLY
LIGHT SHOWERS AND A CHANCE OF THUNDERSTORMS FROM SOME WEAK MUCAPE.
LOW LEVEL FLOW INCREASES WEDNESDAY AND WEDNESDAY NIGHT WITH SHOWERS
EXPECTED AND A CHANCE OF THUNDERSTORMS ACROSS THE AREA. THE RAIN
COULD BE HEAVY AT TIMES WEDNESDAY NIGHT AS A WARM FRONT MOVES CLOSE
TO CENTRAL GA AND THE POTENTIAL FOR SHORT WAVE ENHANCEMENT CONTINUES.
LARGE TEMPERATURE DISCONTINUITY TODAY WITH N AND W GA BEING 10-15
DEGREES COOLER THAN THE E AND S PORTION OF CENTRAL GA. THIS WILL
AMOUNT TO HIGH TEMPERATURES NEAR TO ABOUT 10 DEGREES ABOVE NORMAL.
HIGH TEMPERATURES BELOW NORMAL FOR WEDNESDAY DUE TO EXPECTED
SHOWERS.
OVERALL CONFIDENCE IS MODERATE.
LONG TERM /THURSDAY THROUGH MONDAY/...
AN OCCLUDED AND WARM FRONTAL SYSTEM MOVE INTO THE AREA WITH THE
POTENTIAL FOR THUNDERSTORMS THURSDAY/THURSDAY NIGHT AS BETTER CAPE
MOVES OVER THE AREA ALONG WITH STRONG SW WINDS ALOFT. A COLD FRONT
MOVES TO THE AREA FRIDAY BEING DRIVEN FROM STRONG LOW PRESSURE ALOFT
OVER THE MID U.S. AND GIVING THE CHANCE FOR MORE SHOWERS AND
THUNDERSTORMS WITH THE STRONG SW JET CONTINUING OVER THE AREA. THE
GFS AND EUROPEAN ARE SIMILAR WITH THESE FEATURES. THE UPPER SYSTEM
MOVES TO THE E COAST/WESTERN ATLANTIC THROUGH MONDAY GIVING SOME
CHANCE FOR SHOWERS OVER MAINLY N GA SATURDAY THROUGH MONDAY.
AVIATION...
VFR CONDITIONS CONTINUING TODAY...WITH JUST VARYING AMOUNTS OF MID
AND HIGH SKIES EXPECTED. CIGS/VSBYS LOWERING INTO THE LOW VFR RANGE THIS
EVENING...THEN POSSIBLY INTO THE MVFR RANGE AFTER MIDNIGHT AS
LIGHT RAIN SHOWERS INCREASE ACROSS THE AREA. THINK THUNDER THREAT AT
A MINIMUM AND PLAN TO NOT CARRY AT ANY TAF SITE AT THIS TIME.
SOUTHWEST WINDS (5 TO 10KTS) TODAY...BECOMING MORE SOUTH/SOUTHEAST BY
LATE DAY...THEN PREVAILING SOUTHEAST OVERNIGHT.
49
FIRE WEATHER...
SOME SHORT DURATIONS OF RH BELOW 25 PERCENT NEAR THE SAV RIVER
VALLEY TODAY. OTHERWISE MOST MIN RH`S ABOVE 25 PERCENT WITH SSW
WINDS 5-10 MPH AND A LITTLE STRONGER OVER THE HIGH ELEVATIONS OF THE
GA MOUNTAINS WITH SOME GUSTINESS. ABUNDANT MOIST ON WEDNESDAY WILL
KEEP MIN RH`S 50 PERCENT AND HIGHER DUE TO SHOWERS.
HYDROLOGY...
PROLONGED WET PERIOD STARTING MOSTLY TONIGHT AND CONTINUING INTO
THURSDAY WITH GENERALLY 1-2 INCHES EXPECTED ACROSS THE AREA.
CONVECTION WILL GIVE THE POSSIBILITY FOR LOCALLY HIGHER AMOUNTS.
&&
.PRELIMINARY POINT TEMPS/POPS...
ATHENS 71 47 55 48 68 / 10 70 100 90 80
ATLANTA 65 48 56 51 67 / 20 90 100 90 80
BLAIRSVILLE 64 42 54 47 61 / 30 60 100 90 90
CARTERSVILLE 64 47 56 50 67 / 30 80 100 90 80
COLUMBUS 67 49 63 56 71 / 20 90 80 90 70
GAINESVILLE 68 47 54 48 64 / 20 70 100 90 80
MACON 69 48 60 54 70 / 10 80 80 90 80
ROME 63 47 56 52 67 / 40 70 100 90 80
PEACHTREE CITY 65 46 57 51 68 / 20 90 100 90 70
VIDALIA 75 50 68 57 70 / 0 40 60 90 90
&&
.FFC WATCHES/WARNINGS/ADVISORIES...
NONE.
&&
$$
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