[LeArc] Forecast Discussion : MLI@ 11/26/02 9:29:27 PM

[learc@mailman.qth.net]

The following weather message is provided by McDonough County E.S.D.A.


FXUS63 KDVN 270340
AFDMLI

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
940 PM CST TUE NOV 26 2002

AREA OF CLOUDS OVER NORTHEAST IA AND SE WI HANGING IN THERE THIS 
EVENING AS WEAK CYCLONIC FLOW CONTINUES FROM SURFACE THROUGH H7. FEW 
CLOUDS ENCROACHING INTO FAR NORTHERN CWA...BUT TRENDS SEEN ON 
SATELLITE FOG IMAGERY SHOWS AREA MAINLY STATIONARY WITH SOME EROSION 
ON EAST SIDE PAST HOUR. FEW PATCHY 3 TO 4 THOUSAND FOOT CLOUDS 
OCCASIONALLY DEVELOPING OVER NORTHWEST IL AND EAST CENTRAL IA SEEN 
AS WELL. 

SHORT TERM MODELS NOT HANDLING CURRENT LOW CLOUD FIELDS WELL...BUT 
OVERALL SUGGEST BEST POTENTIAL WILL BE FOR LINGERING OR DEVELOPING 
CLOUDS WILL BE OVER NORTHEAST HALF CWFA SUGGESTED BY WEAK LOW LEVEL 
OMEGA AND HIGHEST LOW LEVEL RH FIELDS. SURFACE RIDGE AXIS CURRENTLY 
FROM WESTERN KS TO NW IA EXPECTED TO NOT EDGE INTO EASTERN IA UNTIL 
AFTER SUNRISE. SE ZONES THAT SAW TRACE AMOUNTS OF SNOWFALL THIS 
MORNING HAVE DEWPOINTS IN 15 TO 20 RANGE WITH CLEAR SKIES 
POTENTIALLY ALLOWING AREA TO RADIATE CLOSE TO SATURATION IF LOW 
LEVEL FLOW RELAXES. VISIBILITIES STARTING TO DROP IN KPIA TO KBMI 
AND FAR SE IA...SO ADDED PATCHY FOG LATE TO SE ZONES...BUT SHOULD 
MAINLY BE AVIATION TYPE. TEMPERATURES WILL BE TRICKY AND DEPENDENT 
ON CLOUD COVER. RAISED MINS SLIGHTLY IN DUBUQUE TO FREEPORT AREA 
WHERE CLOUDS WILL BE MOST INFLUENCIAL. CURRENT PACKAGE WITH LOWS 
AROUND 10 OVER REMAINDER OF CWA EXPECT FAR SW LOOKS GOOD. EXPECT 
COLDEST READINGS FROM ABOUT KDVN THROUGH KCMI TO KFEP...WHERE LATEST 
DAYTIME VISIBLE AND AFTER DARK IR IMAGERY SHOWED SEVERAL DAY OLD 
SNOW COVER LINGERING. 

.DVN...
IA...NONE.
IL...NONE.
MO...NONE.

DLS