FXUS63 KOAX 301038
AFDOAX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
438 AM CST TUE NOV 30 2010
.UPDATE...
UPDATED GRIDS TO INCLUDE A WINTER WEATHER ADVISORY FOR SOUTHWEST
IOWA AND PARTS OF EASTERN NEBRASKA.
&&
.DISCUSSION...
LIGHT SNOW CONTINUED TO FALL ACROSS EASTERN NEBRASKA AND SOUTHWEST
IOWA. TOTALS APPEAR TO BE A HALF INCH IN MOST SPOTS...WITH TOTAL
ACCUMULATIONS EXPECTED TO BE ABOUT AN INCH. HOWEVER...A LIGHT
GLAZE HAS ACCUMULATED IN AREAS WHERE SNOW HAS FALLEN...LEADING TO
SEVERAL ACCIDENTS IN THE OMAHA METRO ALREADY. WITH THE GLAZE AND
CONTINUED SNOWFALL...ALONG WITH INCREASING TRAFFIC LOAD DURING THE
MORNING RUSH HOUR...HAVE ISSUED A WINTER WEATHER ADVISORY FOR THE
LIGHT SNOW AND ICY CONDITIONS. RADAR RETURNS SUGGEST A GRADUAL
DECREASE IN SNOW AREA AND INTENSITY AS WE HEAD THROUGH THE
MORNING. EXPECT THE SNOW TO TAPER TO FLURRIES BY 9 AM.
DERGAN
&&
.PREV DISCUSSION... /ISSUED 257 AM CST TUE NOV 30 2010/
DISCUSSION...TODAY THROUGH THURSDAY NIGHT.
LARGE SCALE FLOW PER VW IMAGERY THIS MORNING SHOWING UPPER TROF
AXIS/DEF ZONE EXTENDING SWD FROM ERN DAKOTAS THRU ERN KS...WITH
AMPLIFIED UPSTREAM RIDGE OVER THE WRN CONUS. MOST PRESSING ISSUE
AT THE MOMENT IS AREA OF -SN DRIFTING DOWN THE ERN CWA THIS
MORNING...AS WELL AS STOUT WINDS TODAY. HAVE A REPORT OF -BLSN SOME
ACCUMULATION ASSOCIATED WITH BAND OF ACTIVITY. RUC13 SHOWING THAT
LLVL UPGLIDE/WAA BEGINS TO FADE SHORTLY AFT 14Z. NEXT PROBLEM...
WIND. HAVE DECIDED TO EXTEND AND EXPAND A BIT OUR WIND ADV TO 21Z
THIS AFTN. RUC13 WAS ADVERTISING CRITERIA WILL BE MET UP THRU AT
LEAST NOON UNTIL UPPER MIDWEST SFC LOW LIFTS FARTHER INTO CANADA.
ONLY OTHER ISSUE IS LITTLE VORT CROSSING THE AREA WED NIGHT.
MOISTURE NOT ALL THAT DEEP...BUT PROBABLY REASONABLE TO MENTION
FLURRIES.
AVIATION...
TAF SITES KOFK/KOMA/KLNK
06Z TAFS
BANDS OF LIGHT SNOW MOVING SOUTH AND SOUTHEAST WILL PRODUCE MVFR
CIGS/VSBYS THROUGH 18Z ACROSS EASTERN NEBRASKA TAF SITES. OCCASIONAL
IFR VSBYS NEAR 1SM ARE POSSIBLE AT KOMA...BUT SHOULD BE FOR SHORT
DURATIONS. CLEARING SKIES ARE EXPECTED AFTER 18Z WITH GUSTY
NORTHWEST WINDS OF 20 TO 30KTS CONTINUING THROUGH 23Z.
&&
.OAX WATCHES/WARNINGS/ADVISORIES...
NE...WINTER WEATHER ADVISORY UNTIL 9 AM CST THIS MORNING FOR NEZ015-
018-033-034-044-045-051>053-066>068.
WIND ADVISORY UNTIL 3 PM CST THIS AFTERNOON FOR NEZ011-012-
015>018-030>034-042-043.
IA...WINTER WEATHER ADVISORY UNTIL 9 AM CST THIS MORNING FOR IAZ043-
055-056-069-079-080-090-091.
WIND ADVISORY UNTIL 3 PM CST THIS AFTERNOON FOR IAZ043.
&&
$$