Expires:No;;436648
FPUS53 KLMK 082006 RRA
ZFPLMK
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LOUISVILLE KY
300 PM EST SAT MAR 8 2008
.SHORT RANGE  (TONIGHT THROUGH SATURDAY)
UPPER LOW AND DEEP SURFACE CYCLONE THAT BROUGHT THE HEAVY SNOW NOW 
MOVING NORTHEAST ACROSS WESTERN PENNSYLVANIA. 500MB DEFORMATION 
ZONE...RESPONSIBLE FOR THIS MORNING'S INTENSE SNOWFALL...IS LOSING 
ITS GRIP ALONG THE OHIO RIVER. LIGHT SNOW NOW ACROSS THE BLUEGRASS 
WILL MOVE EAST AND ONLY A FEW FLURRIES ARE EXPECTED THROUGH THE 
EARLY EVENING HOURS. 
PARTIAL SUN HAS ARRIVED ALONG WITH SOME AFTERNOON CUMULUS CLOUDS. 
MOISTURE ASSOCIATED WITH LAKE MICHIGAN HAS MOVED SOUTH ACROSS 
ILLINOIS AND WILL BE RESPONSIBLE FOR LINGERING CLOUDS LATE THIS 
AFTERNOON. 
HOWEVER...LATER THIS EVENING...WINDS WILL BACK WESTERLY AND SKIES 
WILL TEND TO CLEAR...ESPECIALLY ACROSS OUR SOUTHWESTERN COUNTIES. 
TEMPERATURES WILL BE A CHALLENGE TONIGHT WITH THE MASSIVE SNOW COVER 
WE HAVE. HAVE GONE BELOW GUIDANCE...BUT...SHOULD SKIES COMPLETELY 
CLEAR OVERNIGHT...SOME LOWER TEENS MAY BE POSSIBLE ACROSS SOUTHERN 
INDIANA AND ALONG THE OHIO RIVER. 
TEMPERATURES WILL MODERATE QUITE A BIT TOMORROW...RESTRICTED OF 
COURSE BY SAID SNOW COVER. HIGHS MAY APPROACH THE LOWER 40S ACROSS 
THE NORTH. EXPECT PARTLY CLOUDY SKIES. 
 
.LONG TERM (SUNDAY NIGHT THROUGH SATURDAY)...
TWO WEATHER PRODUCERS WILL MOVE ACROSS THE REGION DURING THE LONG 
TERM. THE FIRST IS A CLIPPER THAT WILL MOVE ACROSS THE AREA LATE 
SUNDAY NIGHT AND MONDAY...PROVIDING A LIGHT DUSTING OF SNOW. THE 
SECOND WILL TWO LOWS THAT WILL BRING A CHANCE OF RAIN THE LATTER 
PART OF THE PERIOD.
SUNDAY NIGHT THROUGH WEDNESDAY NIGHT...
A CLIPPER WILL DIP SOUTH INTO THE LOWER OHIO VALLEY LATE SUNDAY 
NIGHT AND ACROSS THE AREA MONDAY. LITTLE MOISTURE WILL BE AVAILABLE 
AND EXPECTING ONLY A LIGHT DUSTING OF SNOW WITH THIS SYSTEM. 
TEMPERATURES WILL BE COLD ENOUGH FOR THE PRECIPITATION TO STAY ALL 
SNOW.
HIGH PRESSURE WILL THEN BUILD EAST INTO THE AREA...GIVING DRY 
WEATHER AND GRADUALLY WARMING TEMPERATURES TUESDAY AND WEDNESDAY. 
WILL GO BELOW GUIDANCE ON MONDAY FOR HIGHS AND BELOW FOR MIN 
TEMPERATURES AS THE SNOW WILL BE SLOW TO MELT...ESPECIALLY OVER THE 
NORTHERN PARTS OF THE FORECAST AREA.
THURSDAY THROUGH SATURDAY...
A COLD FRONT WILL MOVE EAST FROM THE PLAINS STATES AND ACROSS THE 
AREA THURSDAY NIGHT. THE BEST CHANCE FOR SHOWERS WILL COME LATE 
THURSDAY AND THURSDAY NIGHT ALONG AND AHEAD OF THE FRONT. SCATTERED 
SHOWERS WILL ALSO BE POSSIBLE BEHIND THE FRONT. ANOTHER LOW WILL 
MOVE EAST FROM THE CENTRAL PLAINS FRIDAY INTO SATURDAY. WILL KEEP A 
LOW CHANCE FOR SHOWERS WITH THIS SYSTEM. TEMPERATURES WILL WILL BE 
MILDER ON THURSDAY WITH THE SOUTHERLY WINDS AHEAD OF THE FRONT BUT 
WILL DROP BACK INTO THE LOWER AND MID 50S LATE IN THE WEEK.
&&
.AVIATION (18Z TAFS)...
SNOW WILL MOVE NORTHEAST OF SDF AND BWG BY 18Z WITH ONLY FLURRIES 
WHICH WILL NOT REDUCE VISIBILITIES LOWER THAN VFR. AT 
LEXINGTON...ADDITIONAL LIGHT SNOW MAY OCCASIONALLY REDUCE 
VISIBILITIES TO LESS THAN ONE MILE THROUGH 20Z. ALTHOUGH PEAKS OF 
SUN WILL OCCASIONALLY DEVELOP AT SDF AND BWG...MOSTLY CLOUDY SKIES 
ARE EXPECTED THROUGH 22 TO 23Z WITH CIGS RANGING FROM 2500 TO 3500 
FEET. WINDS WILL CONTINUE FROM THE NORTHWEST THIS EVENING AT 10 TO 
15 MPH WITH OCCASIONAL GUSTS UP TO 25 MPH. VISIBILITIES SHOULD 
REMAIN VFR OVERNIGHT WITH OCCASIONAL BROKEN CIGS AROUND 3K FEET.  
&&
.LMK WATCHES/WARNINGS/ADVISORIES...
KY...NONE.
IN...NONE.
&&
$$
SHORT TERM...JSD
LONG TERM....MS
AVIATION.....JSD