FXUS63 KOAX 300823
AFDOAX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
323 AM CDT THU JUN 30 2011
.DISCUSSION...TODAY THROUGH SATURDAY NIGHT.
WATER VAPOR IMAGERY THIS MORNING SHOWING WELL AMPLIFIED UPPER LEVEL
RIDGE OVER THE PLAINS EXTENDING INTO SRN CANADA WITH PLUME OF
TROPICAL MOISTURE ADVECTING NWD THRU THE ROCKIES. MEANWHILE UPSTREAM
TROF WAS SITUATED OVER THE WRN CONUS WITH CLOSED SEGMENT IN THE
GREAT BASIN. AT THE SFC NARROW WEDGE OF INCREASED LLVL MOISTURE WAS
RUNNING ALL ALONG THE MO RIVER VALLEY. HEAT AND HUMIDITY TODAY
WILL RESULT IN QUITE MUGGY CONDITIONS TODAY ACROSS THE REGION.
EXPECT HEAT INDICES WILL HOVER AROUND 105 OVER THE MAJORITY OF THE
CWA...AND A HEAT ADV IS IN PLACE THRU THIS AFTN FOR THIS. LATER
TONIGHT...GREAT BASIN SHORTWAVE TROF LIFTS THRU THE ROCKIES AND
KICKED THE UPPER LEVEL RIDGE EAST WHILE BRINGING A COLD FRONT INTO
THE CNTRL PLAINS. THE MODELS INDICATE THE BNDRY WILL STALL OUT AND
REMAIN IN THE VICINITY OF THE CWA AT LEAST THRU SATURDAY DUE TO
ZONAL FLOW DEVELOPING ALOFT. APPEARS THAT CAPPING...PER 700MB
TEMPS/MLCINH...WILL BE SIGNIFICANT DURING FROPA...SO WILL HOLD POPS
TO SLGT CAT. NOTE...SRN SECTIONS OF THE CWA MAY SEE HIGH HEAT
INDICES FRIDAY AFTN AHEAD OF APPROACHING BNDRY. WILL LEAVE TO LATER
SHIFTS TO DETERMINE IN HEADLINE WILL BE NEEDED.
DEE
&&
.AVIATION...
TAF SITES KOFK/KOMA/KLNK
06Z TAFS
VFR CONDITIONS ARE EXPECTED THROUGH FRIDAY MORNING. SOUTH WINDS
GUSTING TO 25KTS WILL PREVAIL DURING THE DAY BEFORE DIMINISHING TO
NEAR 12KTS THIS EVENING. A COLD FRONT WILL APPROACH NORTHEAST
NEBRASKA BY 12Z FRIDAY...BUT ANY CLOUDS OR PRECIPITATION WILL REMAIN
WELL NORTHWEST OF THE KOFK AREA.
DERGAN
&&
.OAX WATCHES/WARNINGS/ADVISORIES...
NE...HEAT ADVISORY FROM NOON TODAY TO 7 PM CDT THIS EVENING FOR
NEZ011-012-015>018-030>034-042>045-050>053-065>068-078-
088>093.
IA...HEAT ADVISORY FROM NOON TODAY TO 7 PM CDT THIS EVENING FOR
IAZ043-055-056-069-079-080-090-091.
&&
$$