Area Forecast Discussion
Issued by NWS Jackson, KY

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FXUS63 KJKL 211922
AFDJKL

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE JACKSON KY
322 PM EDT TUE OCT 21 2014

.SHORT TERM...(THIS EVENING THROUGH WEDNESDAY NIGHT)
ISSUED AT 213 PM EDT TUE OCT 21 2014

THE AREA IS UNDER THE INFLUENCE OF AN UPPER LOW PRESSURE SYSTEM WHICH
IS OVER LAKE EIRE. A SURFACE FRONT IS CURRENTLY MOVING THROUGH THE
AREA. IT HAS NOT AMOUNTED TO MUCH MORE THAN A WIND SHIFT AND CLOUDS.
THE UPPER LOW IS FORECAST TO MOVE TO THE SOUTH ACROSS EASTERN OHIO
AND THEN WEST VIRGINA. BY WEDNESDAY MORNING...THE UPPER LOW WILL BE
OVER CENTRAL VIRGINIA. THIS WILL ALLOW FOR VARIABLE CLOUDINESS AND
GENERALLY COOL AND DAMP WEATHER TO CONTINUE THROUGH WEDNESDAY NIGHT.
THERE MAY ALSO BE SOME VERY LIGHT RAIN OR SPRINKLES AT TIMES. STILL
THINK THERE WILL BE PATCHY FROST IN SOME OF THE ISOLATED
VALLEYS...WITH THE BEST CHANCE BEING WEST OF A LINE FROM FLEMING TO
BELL COUNTY. THE TEMPERATURE FORECAST IS COMPLICATED BY THE CLOUDS
AND THE WINDS. IF THE CLOUDS DO NOT CLEAR OUT AT ALL...THEN THE FROST
IS VERY UNLIKELY. ALSO...THE WINDS NEED TO DIE DOWN. THERE IS SOME
QUITE A BIT OF UNCERTAINTY AS THE EXTENT OF THE CLOUDINESS OVER THE
NEXT 36 HOURS.

.LONG TERM...(THURSDAY THROUGH TUESDAY)
ISSUED AT 322 PM EDT TUE OCT 21 2014

MODELS CONTINUE TO SUPPORT A FAIRLY QUIET EXTENDED PERIOD...THUS
CONFIDENCE IS DECENT WITH THIS FORECAST ISSUANCE. AS A QUICK
SUMMARY...LOOKS LIKE THIS FORECAST WILL MAINTAIN DRY CONDITIONS INTO
EARLY NEXT WEEK WITH TEMPERATURES CLIMBING TO NEAR NORMAL...THAN
ABOVE NORMAL BY THE END OF THE PERIOD.

THE PERIOD WILL START AS A STRONG RIDGE SLOWLY PUSHES ACROSS THE
OHIO RIVER VALLEY...PROVIDING PLENTY OF CLEAR SKIES AND MODERATING
TEMPERATURES. HIGHS BY SATURDAY WILL CLIMB BACK TO AROUND 60. A FAST
MOVING MID LEVEL TROUGH WILL SWING SOUTHEAST FRIDAY INTO FRIDAY
NIGHT. STILL A BIT OF UNCERTAINTY WITH THE STRENGTH AND SHARPNESS OF
THE TROUGH WITH THE ECMWF CONTINUING TO BE A BIT MORE AGGRESSIVE THAN
ITS COUNTERPARTS. FOR NOW...OPTING TO STAY WITH THE DRY FORECAST AND
WAIT FOR SOME BETTER AGREEMENT. MOISTURE IS RATHER LIMITED...SO ANY
PRECIPITATION COULD BE MORE IN THE FORM OF SPRINKLES. THIS WAVE MAY
PRODUCE A BIT MORE CLOUD COVER FRIDAY INTO FRIDAY NIGHT...PERHAPS
KEEPING TEMPERATURES A BIT MORE IN CHECK. HOWEVER...AS THE WAVE
EXITS THIS WEEKEND...STRONG RIDGING WILL START ITS MARCH INTO THE
OHIO RIVER VALLEY...WITH TEMPERATURES WARMING THROUGH THE WEEKEND
AND INTO EARLY NEXT WEEK. BY NEXT MONDAY WE COULD SEE TEMPERATURES
PUSHING THE UPPER 70S AND MAYBE EVEN CLOSE TO 80.

&&

.AVIATION...(FOR THE 18Z TAFS THROUGH 18Z WEDNESDAY AFTERNOON)
ISSUED AT 213 PM EDT TUE OCT 21 2014

THE AREA IS UNDER THE INFLUENCE OF AN UPPER LOW PRESSURE SYSTEM WHICH
IS OVER LAKE EIRE. A SURFACE FRONT IS CURRENTLY MOVING THROUGH THE
AREA. IT HAS NOT AMOUNTED TO MUCH MORE THAN A WIND SHIFT AND CLOUDS.
THE UPPER LOW IS FORECAST TO MOVE TO THE SOUTH ACROSS EASTERN OHIO
AND THEN WEST VIRGINA. BY WEDNESDAY MORNING...THE UPPER LOW WILL BE
OVER CENTRAL VIRGINIA. THIS WILL KEEP THE AREA GENERALLY CLOUDY. THE
CLOUDS WILL TEND TO BE LOWER AT NIGHT AND HIGHER DURING THE DAY.
THERE IS A LOT OF UNCERTAINTY AS TO HOW MUCH OF THE CLOUD COVER WILL
TEND TO BE DIURNAL IN NATURE...SO THE FORECAST CERTAINTY IS LOWER
THAN AVERAGE TODAY. THINKING WAS THE LOZ AND SME WOULD SEE THE MOST
CLEARING AND BE MORE LIKELY TO SEE SOME FOG AND MVFR. JKL AND SJS
WILL BE MORE LIKELY TO SEE DRIZZLE OR SPRINKLES AND MVFR CIGS AS THEY
WILL BE CLOSER TO THE UPPER LOW CENTER. EXPECT VFR AGAIN TOMORROW
AFTERNOON.


&&

.JKL WATCHES/WARNINGS/ADVISORIES...
NONE.
&&

$$

SHORT TERM...JJ
LONG TERM...KAS
AVIATION...JJ






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