FXUS63 KOAX 172033
AFDOAX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
333 PM CDT SUN JUL 17 2011
.DISCUSSION...
THE MAIN FORECAST PROBLEMS ARE TEMPERATURES AND CHANCE OF
PRECIPITATION TOWARDS THE END OF THE WEEK.
LARGE UPPER LEVEL RIDGE WILL CONTINUE TO DOMINATE THE WEATHER
ACROSS THE PLAINS THROUGH THURSDAY. CONTINUED HOT...HUMID
CONDITIONS WITH HEAT INDICES ABOVE 110 ARE LIKELY THROUGH
WEDNESDAY. THUS NO CHANGE IS EXPECTED WITH THE EXCESSIVE HEAT
WARNING. THE MAIN CHANGE IN THE UPPER LEVEL PATTERN STARTS
WEDNESDAY AS UPPER TROUGH OFF THE WEST COAST PROGRESSIVELY MOVES
ACROSS THE TOP OF THE RIDGE. BY THURSDAY...THE RIDGE STARTS TO
FLATTEN OUT WITH THE ENERGY RIDING ACROSS THE TOP OF THE RIDGE.
BOTH GFS AND ECMWF INDICATE SHORT WAVE TROUGHS MOVING ACROSS THE
CENTRAL PLAINS THURSDAY. THUS...HAVE INTRODUCED A CHANCE OF
THUNDERSTORMS THURSDAY NIGHT INTO FRIDAY MORNING.
SMITH
&&
.AVIATION...
TAF SITES KOFK/KOMA/KLNK
18Z TAFS
VFR CONDITIONS WILL PREVAIL AT ALL THREE TAF SITES THROUGH THE
FORECAST PERIOD AS THE UPPER LEVEL RIDGE REMAINS IN PLACE. IT WILL
REMAIN HOT AND HUMID THROUGH THE FORECAST PERIOD AS WELL.
MEYER
&&
.OAX WATCHES/WARNINGS/ADVISORIES...
NE...EXCESSIVE HEAT WARNING UNTIL 7 PM CDT WEDNESDAY FOR NEZ011-012-
015>018-030>034-042>045-050>053-065>068-078-088>093.
IA...EXCESSIVE HEAT WARNING UNTIL 7 PM CDT WEDNESDAY FOR IAZ043-055-
056-069-079-080-090-091.
&&
$$